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authorZalathar <Zalathar@users.noreply.github.com>2024-12-22 14:26:54 +1100
committerZalathar <Zalathar@users.noreply.github.com>2024-12-23 12:30:37 +1100
commit87c2f9a5be900e835f3c41cec2886d54ec0ca012 (patch)
treeb7548375a1615723e3e08855c54257c7b50b0b74 /tests/coverage
parent5a14967f7b0504d64fa51400c8776a1b55731c31 (diff)
downloadrust-87c2f9a5be900e835f3c41cec2886d54ec0ca012.tar.gz
rust-87c2f9a5be900e835f3c41cec2886d54ec0ca012.zip
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
This reverts commit 1d35638dc38dbfbf1cc2a9823135dfcf3c650169, reversing
changes made to f23a80a4c2fbca593b64e70f5970368824b4c5e9.
Diffstat (limited to 'tests/coverage')
-rw-r--r--tests/coverage/async.cov-map100
-rw-r--r--tests/coverage/async.coverage1
-rw-r--r--tests/coverage/async.rs1
-rw-r--r--tests/coverage/async2.cov-map24
-rw-r--r--tests/coverage/async2.coverage1
-rw-r--r--tests/coverage/async2.rs1
-rw-r--r--tests/coverage/async_block.cov-map8
-rw-r--r--tests/coverage/async_block.coverage1
-rw-r--r--tests/coverage/async_block.rs1
-rw-r--r--tests/coverage/attr/impl.cov-map12
-rw-r--r--tests/coverage/attr/impl.coverage1
-rw-r--r--tests/coverage/attr/impl.rs1
-rw-r--r--tests/coverage/attr/module.cov-map12
-rw-r--r--tests/coverage/attr/module.coverage1
-rw-r--r--tests/coverage/attr/module.rs1
-rw-r--r--tests/coverage/attr/nested.coverage2
-rw-r--r--tests/coverage/attr/nested.rs2
-rw-r--r--tests/coverage/attr/off-on-sandwich.cov-map12
-rw-r--r--tests/coverage/attr/off-on-sandwich.coverage1
-rw-r--r--tests/coverage/attr/off-on-sandwich.rs1
-rw-r--r--tests/coverage/auxiliary/executor.rs1
-rw-r--r--tests/coverage/await_ready.cov-map8
-rw-r--r--tests/coverage/await_ready.coverage1
-rw-r--r--tests/coverage/await_ready.rs1
-rw-r--r--tests/coverage/bad_counter_ids.cov-map32
-rw-r--r--tests/coverage/bad_counter_ids.coverage1
-rw-r--r--tests/coverage/bad_counter_ids.rs1
-rw-r--r--tests/coverage/branch/generics.cov-map12
-rw-r--r--tests/coverage/branch/generics.coverage1
-rw-r--r--tests/coverage/branch/generics.rs1
-rw-r--r--tests/coverage/branch/guard.cov-map4
-rw-r--r--tests/coverage/branch/guard.coverage1
-rw-r--r--tests/coverage/branch/guard.rs1
-rw-r--r--tests/coverage/branch/if-let.coverage2
-rw-r--r--tests/coverage/branch/if-let.rs2
-rw-r--r--tests/coverage/branch/if.cov-map16
-rw-r--r--tests/coverage/branch/if.coverage1
-rw-r--r--tests/coverage/branch/if.rs1
-rw-r--r--tests/coverage/branch/lazy-boolean.cov-map16
-rw-r--r--tests/coverage/branch/lazy-boolean.coverage1
-rw-r--r--tests/coverage/branch/lazy-boolean.rs1
-rw-r--r--tests/coverage/branch/let-else.cov-map4
-rw-r--r--tests/coverage/branch/let-else.coverage1
-rw-r--r--tests/coverage/branch/let-else.rs1
-rw-r--r--tests/coverage/branch/match-arms.cov-map12
-rw-r--r--tests/coverage/branch/match-arms.coverage1
-rw-r--r--tests/coverage/branch/match-arms.rs1
-rw-r--r--tests/coverage/branch/match-trivial.cov-map8
-rw-r--r--tests/coverage/branch/match-trivial.coverage1
-rw-r--r--tests/coverage/branch/match-trivial.rs1
-rw-r--r--tests/coverage/branch/no-mir-spans.cov-map16
-rw-r--r--tests/coverage/branch/no-mir-spans.coverage1
-rw-r--r--tests/coverage/branch/no-mir-spans.rs1
-rw-r--r--tests/coverage/branch/while.cov-map16
-rw-r--r--tests/coverage/branch/while.coverage1
-rw-r--r--tests/coverage/branch/while.rs1
-rw-r--r--tests/coverage/closure_macro_async.cov-map16
-rw-r--r--tests/coverage/closure_macro_async.coverage1
-rw-r--r--tests/coverage/closure_macro_async.rs1
-rw-r--r--tests/coverage/closure_unit_return.cov-map16
-rw-r--r--tests/coverage/closure_unit_return.coverage1
-rw-r--r--tests/coverage/closure_unit_return.rs1
-rw-r--r--tests/coverage/condition/conditions.cov-map28
-rw-r--r--tests/coverage/condition/conditions.coverage1
-rw-r--r--tests/coverage/condition/conditions.rs1
-rw-r--r--tests/coverage/coverage_attr_closure.coverage2
-rw-r--r--tests/coverage/coverage_attr_closure.rs2
-rw-r--r--tests/coverage/fn_sig_into_try.cov-map16
-rw-r--r--tests/coverage/fn_sig_into_try.coverage1
-rw-r--r--tests/coverage/fn_sig_into_try.rs1
-rw-r--r--tests/coverage/if_not.cov-map4
-rw-r--r--tests/coverage/if_not.coverage1
-rw-r--r--tests/coverage/if_not.rs1
-rw-r--r--tests/coverage/let_else_loop.cov-map12
-rw-r--r--tests/coverage/let_else_loop.coverage1
-rw-r--r--tests/coverage/let_else_loop.rs1
-rw-r--r--tests/coverage/macro_in_closure.cov-map8
-rw-r--r--tests/coverage/macro_in_closure.coverage1
-rw-r--r--tests/coverage/macro_in_closure.rs1
-rw-r--r--tests/coverage/mcdc/condition-limit.cov-map4
-rw-r--r--tests/coverage/mcdc/condition-limit.coverage1
-rw-r--r--tests/coverage/mcdc/condition-limit.rs1
-rw-r--r--tests/coverage/mcdc/if.cov-map28
-rw-r--r--tests/coverage/mcdc/if.coverage1
-rw-r--r--tests/coverage/mcdc/if.rs1
-rw-r--r--tests/coverage/mcdc/inlined_expressions.cov-map4
-rw-r--r--tests/coverage/mcdc/inlined_expressions.coverage1
-rw-r--r--tests/coverage/mcdc/inlined_expressions.rs1
-rw-r--r--tests/coverage/mcdc/nested_if.cov-map16
-rw-r--r--tests/coverage/mcdc/nested_if.coverage1
-rw-r--r--tests/coverage/mcdc/nested_if.rs1
-rw-r--r--tests/coverage/mcdc/non_control_flow.cov-map28
-rw-r--r--tests/coverage/mcdc/non_control_flow.coverage1
-rw-r--r--tests/coverage/mcdc/non_control_flow.rs1
-rw-r--r--tests/coverage/no_cov_crate.cov-map28
-rw-r--r--tests/coverage/no_cov_crate.coverage1
-rw-r--r--tests/coverage/no_cov_crate.rs1
-rw-r--r--tests/coverage/no_spans.cov-map8
-rw-r--r--tests/coverage/no_spans.coverage1
-rw-r--r--tests/coverage/no_spans.rs1
-rw-r--r--tests/coverage/unreachable.coverage2
-rw-r--r--tests/coverage/unreachable.rs2
102 files changed, 335 insertions, 272 deletions
diff --git a/tests/coverage/async.cov-map b/tests/coverage/async.cov-map
index 9c6f4bd385f..d3eed6c4f2a 100644
--- a/tests/coverage/async.cov-map
+++ b/tests/coverage/async.cov-map
@@ -1,20 +1,20 @@
 Function name: async::c
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 0a, 01, 00, 19]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 0b, 01, 00, 19]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 10, 1) to (start + 0, 25)
+- Code(Counter(0)) at (prev + 11, 1) to (start + 0, 25)
 Highest counter ID seen: c0
 
 Function name: async::c::{closure#0}
-Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 0a, 19, 01, 0e, 05, 02, 09, 00, 0a, 02, 02, 09, 00, 0a, 01, 02, 01, 00, 02]
+Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 0b, 19, 01, 0e, 05, 02, 09, 00, 0a, 02, 02, 09, 00, 0a, 01, 02, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
 - expression 0 operands: lhs = Counter(0), rhs = Counter(1)
 Number of file 0 mappings: 4
-- Code(Counter(0)) at (prev + 10, 25) to (start + 1, 14)
+- Code(Counter(0)) at (prev + 11, 25) to (start + 1, 14)
 - Code(Counter(1)) at (prev + 2, 9) to (start + 0, 10)
 - Code(Expression(0, Sub)) at (prev + 2, 9) to (start + 0, 10)
     = (c0 - c1)
@@ -22,93 +22,93 @@ Number of file 0 mappings: 4
 Highest counter ID seen: c1
 
 Function name: async::d
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 12, 01, 00, 14]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 13, 01, 00, 14]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 18, 1) to (start + 0, 20)
+- Code(Counter(0)) at (prev + 19, 1) to (start + 0, 20)
 Highest counter ID seen: c0
 
 Function name: async::d::{closure#0}
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 12, 14, 00, 19]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 13, 14, 00, 19]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 18, 20) to (start + 0, 25)
+- Code(Counter(0)) at (prev + 19, 20) to (start + 0, 25)
 Highest counter ID seen: c0
 
 Function name: async::e (unused)
-Raw bytes (9): 0x[01, 01, 00, 01, 00, 14, 01, 00, 14]
+Raw bytes (9): 0x[01, 01, 00, 01, 00, 15, 01, 00, 14]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Zero) at (prev + 20, 1) to (start + 0, 20)
+- Code(Zero) at (prev + 21, 1) to (start + 0, 20)
 Highest counter ID seen: (none)
 
 Function name: async::e::{closure#0} (unused)
-Raw bytes (9): 0x[01, 01, 00, 01, 00, 14, 14, 00, 19]
+Raw bytes (9): 0x[01, 01, 00, 01, 00, 15, 14, 00, 19]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Zero) at (prev + 20, 20) to (start + 0, 25)
+- Code(Zero) at (prev + 21, 20) to (start + 0, 25)
 Highest counter ID seen: (none)
 
 Function name: async::f
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 16, 01, 00, 14]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 17, 01, 00, 14]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 22, 1) to (start + 0, 20)
+- Code(Counter(0)) at (prev + 23, 1) to (start + 0, 20)
 Highest counter ID seen: c0
 
 Function name: async::f::{closure#0}
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 16, 14, 00, 19]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 17, 14, 00, 19]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 22, 20) to (start + 0, 25)
+- Code(Counter(0)) at (prev + 23, 20) to (start + 0, 25)
 Highest counter ID seen: c0
 
 Function name: async::foo (unused)
-Raw bytes (9): 0x[01, 01, 00, 01, 00, 18, 01, 00, 1e]
+Raw bytes (9): 0x[01, 01, 00, 01, 00, 19, 01, 00, 1e]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Zero) at (prev + 24, 1) to (start + 0, 30)
+- Code(Zero) at (prev + 25, 1) to (start + 0, 30)
 Highest counter ID seen: (none)
 
 Function name: async::foo::{closure#0} (unused)
-Raw bytes (9): 0x[01, 01, 00, 01, 00, 18, 1e, 00, 2d]
+Raw bytes (9): 0x[01, 01, 00, 01, 00, 19, 1e, 00, 2d]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Zero) at (prev + 24, 30) to (start + 0, 45)
+- Code(Zero) at (prev + 25, 30) to (start + 0, 45)
 Highest counter ID seen: (none)
 
 Function name: async::g
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 1a, 01, 00, 17]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 1b, 01, 00, 17]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 26, 1) to (start + 0, 23)
+- Code(Counter(0)) at (prev + 27, 1) to (start + 0, 23)
 Highest counter ID seen: c0
 
 Function name: async::g::{closure#0} (unused)
-Raw bytes (59): 0x[01, 01, 00, 0b, 00, 1a, 17, 01, 0c, 00, 02, 09, 00, 0a, 00, 00, 0e, 00, 17, 00, 00, 1b, 00, 1c, 00, 00, 20, 00, 22, 00, 01, 09, 00, 0a, 00, 00, 0e, 00, 17, 00, 00, 1b, 00, 1c, 00, 00, 20, 00, 22, 00, 01, 0e, 00, 10, 00, 02, 01, 00, 02]
+Raw bytes (59): 0x[01, 01, 00, 0b, 00, 1b, 17, 01, 0c, 00, 02, 09, 00, 0a, 00, 00, 0e, 00, 17, 00, 00, 1b, 00, 1c, 00, 00, 20, 00, 22, 00, 01, 09, 00, 0a, 00, 00, 0e, 00, 17, 00, 00, 1b, 00, 1c, 00, 00, 20, 00, 22, 00, 01, 0e, 00, 10, 00, 02, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 11
-- Code(Zero) at (prev + 26, 23) to (start + 1, 12)
+- Code(Zero) at (prev + 27, 23) to (start + 1, 12)
 - Code(Zero) at (prev + 2, 9) to (start + 0, 10)
 - Code(Zero) at (prev + 0, 14) to (start + 0, 23)
 - Code(Zero) at (prev + 0, 27) to (start + 0, 28)
@@ -122,21 +122,21 @@ Number of file 0 mappings: 11
 Highest counter ID seen: (none)
 
 Function name: async::h
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 22, 01, 00, 16]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 23, 01, 00, 16]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 34, 1) to (start + 0, 22)
+- Code(Counter(0)) at (prev + 35, 1) to (start + 0, 22)
 Highest counter ID seen: c0
 
 Function name: async::h::{closure#0} (unused)
-Raw bytes (39): 0x[01, 01, 00, 07, 00, 22, 16, 03, 0c, 00, 04, 09, 00, 0a, 00, 00, 0e, 00, 19, 00, 00, 1a, 00, 1b, 00, 00, 20, 00, 22, 00, 01, 0e, 00, 10, 00, 02, 01, 00, 02]
+Raw bytes (39): 0x[01, 01, 00, 07, 00, 23, 16, 03, 0c, 00, 04, 09, 00, 0a, 00, 00, 0e, 00, 19, 00, 00, 1a, 00, 1b, 00, 00, 20, 00, 22, 00, 01, 0e, 00, 10, 00, 02, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 7
-- Code(Zero) at (prev + 34, 22) to (start + 3, 12)
+- Code(Zero) at (prev + 35, 22) to (start + 3, 12)
 - Code(Zero) at (prev + 4, 9) to (start + 0, 10)
 - Code(Zero) at (prev + 0, 14) to (start + 0, 25)
 - Code(Zero) at (prev + 0, 26) to (start + 0, 27)
@@ -146,23 +146,23 @@ Number of file 0 mappings: 7
 Highest counter ID seen: (none)
 
 Function name: async::i
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 2b, 01, 00, 13]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 2c, 01, 00, 13]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 43, 1) to (start + 0, 19)
+- Code(Counter(0)) at (prev + 44, 1) to (start + 0, 19)
 Highest counter ID seen: c0
 
 Function name: async::i::{closure#0}
-Raw bytes (63): 0x[01, 01, 02, 07, 15, 0d, 11, 0b, 01, 2b, 13, 04, 0c, 09, 05, 09, 00, 0a, 01, 00, 0e, 00, 18, 05, 00, 1c, 00, 21, 09, 00, 27, 00, 30, 11, 01, 09, 00, 0a, 19, 00, 0e, 00, 17, 1d, 00, 1b, 00, 20, 11, 00, 24, 00, 26, 15, 01, 0e, 00, 10, 03, 02, 01, 00, 02]
+Raw bytes (63): 0x[01, 01, 02, 07, 15, 0d, 11, 0b, 01, 2c, 13, 04, 0c, 09, 05, 09, 00, 0a, 01, 00, 0e, 00, 18, 05, 00, 1c, 00, 21, 09, 00, 27, 00, 30, 11, 01, 09, 00, 0a, 19, 00, 0e, 00, 17, 1d, 00, 1b, 00, 20, 11, 00, 24, 00, 26, 15, 01, 0e, 00, 10, 03, 02, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 2
 - expression 0 operands: lhs = Expression(1, Add), rhs = Counter(5)
 - expression 1 operands: lhs = Counter(3), rhs = Counter(4)
 Number of file 0 mappings: 11
-- Code(Counter(0)) at (prev + 43, 19) to (start + 4, 12)
+- Code(Counter(0)) at (prev + 44, 19) to (start + 4, 12)
 - Code(Counter(2)) at (prev + 5, 9) to (start + 0, 10)
 - Code(Counter(0)) at (prev + 0, 14) to (start + 0, 24)
 - Code(Counter(1)) at (prev + 0, 28) to (start + 0, 33)
@@ -177,14 +177,14 @@ Number of file 0 mappings: 11
 Highest counter ID seen: c7
 
 Function name: async::j
-Raw bytes (58): 0x[01, 01, 02, 07, 0d, 05, 09, 0a, 01, 36, 01, 00, 0d, 01, 0b, 0b, 00, 0c, 05, 01, 09, 00, 0a, 01, 00, 0e, 00, 1b, 05, 00, 1f, 00, 27, 09, 01, 09, 00, 0a, 11, 00, 0e, 00, 1a, 09, 00, 1e, 00, 20, 0d, 01, 0e, 00, 10, 03, 02, 01, 00, 02]
+Raw bytes (58): 0x[01, 01, 02, 07, 0d, 05, 09, 0a, 01, 37, 01, 00, 0d, 01, 0b, 0b, 00, 0c, 05, 01, 09, 00, 0a, 01, 00, 0e, 00, 1b, 05, 00, 1f, 00, 27, 09, 01, 09, 00, 0a, 11, 00, 0e, 00, 1a, 09, 00, 1e, 00, 20, 0d, 01, 0e, 00, 10, 03, 02, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 2
 - expression 0 operands: lhs = Expression(1, Add), rhs = Counter(3)
 - expression 1 operands: lhs = Counter(1), rhs = Counter(2)
 Number of file 0 mappings: 10
-- Code(Counter(0)) at (prev + 54, 1) to (start + 0, 13)
+- Code(Counter(0)) at (prev + 55, 1) to (start + 0, 13)
 - Code(Counter(0)) at (prev + 11, 11) to (start + 0, 12)
 - Code(Counter(1)) at (prev + 1, 9) to (start + 0, 10)
 - Code(Counter(0)) at (prev + 0, 14) to (start + 0, 27)
@@ -198,13 +198,13 @@ Number of file 0 mappings: 10
 Highest counter ID seen: c4
 
 Function name: async::j::c
-Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 38, 05, 01, 12, 05, 02, 0d, 00, 0e, 02, 02, 0d, 00, 0e, 01, 02, 05, 00, 06]
+Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 39, 05, 01, 12, 05, 02, 0d, 00, 0e, 02, 02, 0d, 00, 0e, 01, 02, 05, 00, 06]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
 - expression 0 operands: lhs = Counter(0), rhs = Counter(1)
 Number of file 0 mappings: 4
-- Code(Counter(0)) at (prev + 56, 5) to (start + 1, 18)
+- Code(Counter(0)) at (prev + 57, 5) to (start + 1, 18)
 - Code(Counter(1)) at (prev + 2, 13) to (start + 0, 14)
 - Code(Expression(0, Sub)) at (prev + 2, 13) to (start + 0, 14)
     = (c0 - c1)
@@ -212,30 +212,30 @@ Number of file 0 mappings: 4
 Highest counter ID seen: c1
 
 Function name: async::j::d
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 3f, 05, 00, 17]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 40, 05, 00, 17]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 63, 5) to (start + 0, 23)
+- Code(Counter(0)) at (prev + 64, 5) to (start + 0, 23)
 Highest counter ID seen: c0
 
 Function name: async::j::f
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 40, 05, 00, 17]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 41, 05, 00, 17]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 64, 5) to (start + 0, 23)
+- Code(Counter(0)) at (prev + 65, 5) to (start + 0, 23)
 Highest counter ID seen: c0
 
 Function name: async::k (unused)
-Raw bytes (29): 0x[01, 01, 00, 05, 00, 48, 01, 01, 0c, 00, 02, 0e, 00, 10, 00, 01, 0e, 00, 10, 00, 01, 0e, 00, 10, 00, 02, 01, 00, 02]
+Raw bytes (29): 0x[01, 01, 00, 05, 00, 49, 01, 01, 0c, 00, 02, 0e, 00, 10, 00, 01, 0e, 00, 10, 00, 01, 0e, 00, 10, 00, 02, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 5
-- Code(Zero) at (prev + 72, 1) to (start + 1, 12)
+- Code(Zero) at (prev + 73, 1) to (start + 1, 12)
 - Code(Zero) at (prev + 2, 14) to (start + 0, 16)
 - Code(Zero) at (prev + 1, 14) to (start + 0, 16)
 - Code(Zero) at (prev + 1, 14) to (start + 0, 16)
@@ -243,14 +243,14 @@ Number of file 0 mappings: 5
 Highest counter ID seen: (none)
 
 Function name: async::l
-Raw bytes (33): 0x[01, 01, 02, 01, 07, 05, 09, 05, 01, 50, 01, 01, 0c, 02, 02, 0e, 00, 10, 09, 01, 0e, 00, 10, 05, 01, 0e, 00, 10, 01, 02, 01, 00, 02]
+Raw bytes (33): 0x[01, 01, 02, 01, 07, 05, 09, 05, 01, 51, 01, 01, 0c, 02, 02, 0e, 00, 10, 09, 01, 0e, 00, 10, 05, 01, 0e, 00, 10, 01, 02, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 2
 - expression 0 operands: lhs = Counter(0), rhs = Expression(1, Add)
 - expression 1 operands: lhs = Counter(1), rhs = Counter(2)
 Number of file 0 mappings: 5
-- Code(Counter(0)) at (prev + 80, 1) to (start + 1, 12)
+- Code(Counter(0)) at (prev + 81, 1) to (start + 1, 12)
 - Code(Expression(0, Sub)) at (prev + 2, 14) to (start + 0, 16)
     = (c0 - (c1 + c2))
 - Code(Counter(2)) at (prev + 1, 14) to (start + 0, 16)
@@ -259,29 +259,29 @@ Number of file 0 mappings: 5
 Highest counter ID seen: c2
 
 Function name: async::m
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 58, 01, 00, 19]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 59, 01, 00, 19]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 88, 1) to (start + 0, 25)
+- Code(Counter(0)) at (prev + 89, 1) to (start + 0, 25)
 Highest counter ID seen: c0
 
 Function name: async::m::{closure#0} (unused)
-Raw bytes (9): 0x[01, 01, 00, 01, 00, 58, 19, 00, 22]
+Raw bytes (9): 0x[01, 01, 00, 01, 00, 59, 19, 00, 22]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Zero) at (prev + 88, 25) to (start + 0, 34)
+- Code(Zero) at (prev + 89, 25) to (start + 0, 34)
 Highest counter ID seen: (none)
 
 Function name: async::main
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 5a, 01, 08, 02]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 5b, 01, 08, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 90, 1) to (start + 8, 2)
+- Code(Counter(0)) at (prev + 91, 1) to (start + 8, 2)
 Highest counter ID seen: c0
 
diff --git a/tests/coverage/async.coverage b/tests/coverage/async.coverage
index cee0e1a0a85..aee76b05fb7 100644
--- a/tests/coverage/async.coverage
+++ b/tests/coverage/async.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |#![feature(custom_inner_attributes)] // for #![rustfmt::skip]
    LL|       |#![allow(unused_assignments, dead_code)]
    LL|       |#![rustfmt::skip]
diff --git a/tests/coverage/async.rs b/tests/coverage/async.rs
index 801c98c52df..da0a1c0b6f0 100644
--- a/tests/coverage/async.rs
+++ b/tests/coverage/async.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 #![feature(custom_inner_attributes)] // for #![rustfmt::skip]
 #![allow(unused_assignments, dead_code)]
 #![rustfmt::skip]
diff --git a/tests/coverage/async2.cov-map b/tests/coverage/async2.cov-map
index 926124fdc76..7660f917b65 100644
--- a/tests/coverage/async2.cov-map
+++ b/tests/coverage/async2.cov-map
@@ -1,58 +1,58 @@
 Function name: async2::async_func
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 0e, 01, 00, 17]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 0f, 01, 00, 17]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 14, 1) to (start + 0, 23)
+- Code(Counter(0)) at (prev + 15, 1) to (start + 0, 23)
 Highest counter ID seen: c0
 
 Function name: async2::async_func::{closure#0}
-Raw bytes (24): 0x[01, 01, 00, 04, 01, 0e, 17, 03, 09, 05, 03, 0a, 02, 06, 00, 02, 05, 00, 06, 01, 01, 01, 00, 02]
+Raw bytes (24): 0x[01, 01, 00, 04, 01, 0f, 17, 03, 09, 05, 03, 0a, 02, 06, 00, 02, 05, 00, 06, 01, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 4
-- Code(Counter(0)) at (prev + 14, 23) to (start + 3, 9)
+- Code(Counter(0)) at (prev + 15, 23) to (start + 3, 9)
 - Code(Counter(1)) at (prev + 3, 10) to (start + 2, 6)
 - Code(Zero) at (prev + 2, 5) to (start + 0, 6)
 - Code(Counter(0)) at (prev + 1, 1) to (start + 0, 2)
 Highest counter ID seen: c1
 
 Function name: async2::async_func_just_println
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 16, 01, 00, 24]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 17, 01, 00, 24]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 22, 1) to (start + 0, 36)
+- Code(Counter(0)) at (prev + 23, 1) to (start + 0, 36)
 Highest counter ID seen: c0
 
 Function name: async2::async_func_just_println::{closure#0}
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 16, 24, 02, 02]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 17, 24, 02, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 22, 36) to (start + 2, 2)
+- Code(Counter(0)) at (prev + 23, 36) to (start + 2, 2)
 Highest counter ID seen: c0
 
 Function name: async2::main
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 1a, 01, 07, 02]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 1b, 01, 07, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 26, 1) to (start + 7, 2)
+- Code(Counter(0)) at (prev + 27, 1) to (start + 7, 2)
 Highest counter ID seen: c0
 
 Function name: async2::non_async_func
-Raw bytes (24): 0x[01, 01, 00, 04, 01, 06, 01, 03, 09, 05, 03, 0a, 02, 06, 00, 02, 05, 00, 06, 01, 01, 01, 00, 02]
+Raw bytes (24): 0x[01, 01, 00, 04, 01, 07, 01, 03, 09, 05, 03, 0a, 02, 06, 00, 02, 05, 00, 06, 01, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 4
-- Code(Counter(0)) at (prev + 6, 1) to (start + 3, 9)
+- Code(Counter(0)) at (prev + 7, 1) to (start + 3, 9)
 - Code(Counter(1)) at (prev + 3, 10) to (start + 2, 6)
 - Code(Zero) at (prev + 2, 5) to (start + 0, 6)
 - Code(Counter(0)) at (prev + 1, 1) to (start + 0, 2)
diff --git a/tests/coverage/async2.coverage b/tests/coverage/async2.coverage
index 0e91fa975f5..fa56072924b 100644
--- a/tests/coverage/async2.coverage
+++ b/tests/coverage/async2.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2018
    LL|       |
    LL|       |//@ aux-build: executor.rs
diff --git a/tests/coverage/async2.rs b/tests/coverage/async2.rs
index 64e85f1b6bd..9bd4821518a 100644
--- a/tests/coverage/async2.rs
+++ b/tests/coverage/async2.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2018
 
 //@ aux-build: executor.rs
diff --git a/tests/coverage/async_block.cov-map b/tests/coverage/async_block.cov-map
index e9e7e9cd2c3..14ed4850d4a 100644
--- a/tests/coverage/async_block.cov-map
+++ b/tests/coverage/async_block.cov-map
@@ -1,11 +1,11 @@
 Function name: async_block::main
-Raw bytes (36): 0x[01, 01, 01, 01, 05, 06, 01, 06, 01, 00, 0b, 05, 01, 09, 00, 0a, 03, 00, 0e, 00, 13, 05, 00, 14, 01, 16, 05, 07, 0a, 02, 06, 01, 03, 01, 00, 02]
+Raw bytes (36): 0x[01, 01, 01, 01, 05, 06, 01, 07, 01, 00, 0b, 05, 01, 09, 00, 0a, 03, 00, 0e, 00, 13, 05, 00, 14, 01, 16, 05, 07, 0a, 02, 06, 01, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
 - expression 0 operands: lhs = Counter(0), rhs = Counter(1)
 Number of file 0 mappings: 6
-- Code(Counter(0)) at (prev + 6, 1) to (start + 0, 11)
+- Code(Counter(0)) at (prev + 7, 1) to (start + 0, 11)
 - Code(Counter(1)) at (prev + 1, 9) to (start + 0, 10)
 - Code(Expression(0, Add)) at (prev + 0, 14) to (start + 0, 19)
     = (c0 + c1)
@@ -15,13 +15,13 @@ Number of file 0 mappings: 6
 Highest counter ID seen: c1
 
 Function name: async_block::main::{closure#0}
-Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 08, 1c, 01, 17, 05, 01, 18, 02, 0e, 02, 02, 14, 02, 0e, 01, 03, 09, 00, 0a]
+Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 09, 1c, 01, 17, 05, 01, 18, 02, 0e, 02, 02, 14, 02, 0e, 01, 03, 09, 00, 0a]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
 - expression 0 operands: lhs = Counter(0), rhs = Counter(1)
 Number of file 0 mappings: 4
-- Code(Counter(0)) at (prev + 8, 28) to (start + 1, 23)
+- Code(Counter(0)) at (prev + 9, 28) to (start + 1, 23)
 - Code(Counter(1)) at (prev + 1, 24) to (start + 2, 14)
 - Code(Expression(0, Sub)) at (prev + 2, 20) to (start + 2, 14)
     = (c0 - c1)
diff --git a/tests/coverage/async_block.coverage b/tests/coverage/async_block.coverage
index 7ccc83499e6..9e3294492cd 100644
--- a/tests/coverage/async_block.coverage
+++ b/tests/coverage/async_block.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |
    LL|       |//@ aux-build: executor.rs
diff --git a/tests/coverage/async_block.rs b/tests/coverage/async_block.rs
index 05a105224bb..d1e37ab7505 100644
--- a/tests/coverage/async_block.rs
+++ b/tests/coverage/async_block.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 
 //@ aux-build: executor.rs
diff --git a/tests/coverage/attr/impl.cov-map b/tests/coverage/attr/impl.cov-map
index 4d068c290f4..8a23c082082 100644
--- a/tests/coverage/attr/impl.cov-map
+++ b/tests/coverage/attr/impl.cov-map
@@ -1,27 +1,27 @@
 Function name: <impl::MyStruct>::off_on (unused)
-Raw bytes (9): 0x[01, 01, 00, 01, 00, 0e, 05, 00, 13]
+Raw bytes (9): 0x[01, 01, 00, 01, 00, 0f, 05, 00, 13]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Zero) at (prev + 14, 5) to (start + 0, 19)
+- Code(Zero) at (prev + 15, 5) to (start + 0, 19)
 Highest counter ID seen: (none)
 
 Function name: <impl::MyStruct>::on_inherit (unused)
-Raw bytes (9): 0x[01, 01, 00, 01, 00, 16, 05, 00, 17]
+Raw bytes (9): 0x[01, 01, 00, 01, 00, 17, 05, 00, 17]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Zero) at (prev + 22, 5) to (start + 0, 23)
+- Code(Zero) at (prev + 23, 5) to (start + 0, 23)
 Highest counter ID seen: (none)
 
 Function name: <impl::MyStruct>::on_on (unused)
-Raw bytes (9): 0x[01, 01, 00, 01, 00, 19, 05, 00, 12]
+Raw bytes (9): 0x[01, 01, 00, 01, 00, 1a, 05, 00, 12]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Zero) at (prev + 25, 5) to (start + 0, 18)
+- Code(Zero) at (prev + 26, 5) to (start + 0, 18)
 Highest counter ID seen: (none)
 
diff --git a/tests/coverage/attr/impl.coverage b/tests/coverage/attr/impl.coverage
index af00df5d743..670c1c36a96 100644
--- a/tests/coverage/attr/impl.coverage
+++ b/tests/coverage/attr/impl.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |//@ reference: attributes.coverage.nesting
    LL|       |
diff --git a/tests/coverage/attr/impl.rs b/tests/coverage/attr/impl.rs
index db08fdc4179..c720a4cd6b2 100644
--- a/tests/coverage/attr/impl.rs
+++ b/tests/coverage/attr/impl.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 //@ reference: attributes.coverage.nesting
 
diff --git a/tests/coverage/attr/module.cov-map b/tests/coverage/attr/module.cov-map
index b318ac85a6c..81e20a2c264 100644
--- a/tests/coverage/attr/module.cov-map
+++ b/tests/coverage/attr/module.cov-map
@@ -1,27 +1,27 @@
 Function name: module::off::on (unused)
-Raw bytes (9): 0x[01, 01, 00, 01, 00, 0c, 05, 00, 0f]
+Raw bytes (9): 0x[01, 01, 00, 01, 00, 0d, 05, 00, 0f]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Zero) at (prev + 12, 5) to (start + 0, 15)
+- Code(Zero) at (prev + 13, 5) to (start + 0, 15)
 Highest counter ID seen: (none)
 
 Function name: module::on::inherit (unused)
-Raw bytes (9): 0x[01, 01, 00, 01, 00, 14, 05, 00, 14]
+Raw bytes (9): 0x[01, 01, 00, 01, 00, 15, 05, 00, 14]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Zero) at (prev + 20, 5) to (start + 0, 20)
+- Code(Zero) at (prev + 21, 5) to (start + 0, 20)
 Highest counter ID seen: (none)
 
 Function name: module::on::on (unused)
-Raw bytes (9): 0x[01, 01, 00, 01, 00, 17, 05, 00, 0f]
+Raw bytes (9): 0x[01, 01, 00, 01, 00, 18, 05, 00, 0f]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Zero) at (prev + 23, 5) to (start + 0, 15)
+- Code(Zero) at (prev + 24, 5) to (start + 0, 15)
 Highest counter ID seen: (none)
 
diff --git a/tests/coverage/attr/module.coverage b/tests/coverage/attr/module.coverage
index 732850fb04a..bba021b9b47 100644
--- a/tests/coverage/attr/module.coverage
+++ b/tests/coverage/attr/module.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |//@ reference: attributes.coverage.nesting
    LL|       |
diff --git a/tests/coverage/attr/module.rs b/tests/coverage/attr/module.rs
index c0ec5bc1d62..1d17ac7d503 100644
--- a/tests/coverage/attr/module.rs
+++ b/tests/coverage/attr/module.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 //@ reference: attributes.coverage.nesting
 
diff --git a/tests/coverage/attr/nested.coverage b/tests/coverage/attr/nested.coverage
index 13e9aa0a8e8..6bd24d67936 100644
--- a/tests/coverage/attr/nested.coverage
+++ b/tests/coverage/attr/nested.coverage
@@ -1,4 +1,4 @@
-   LL|       |#![feature(stmt_expr_attributes)]
+   LL|       |#![feature(coverage_attribute, stmt_expr_attributes)]
    LL|       |//@ edition: 2021
    LL|       |//@ reference: attributes.coverage.nesting
    LL|       |
diff --git a/tests/coverage/attr/nested.rs b/tests/coverage/attr/nested.rs
index 184fa54c066..042fcc5319a 100644
--- a/tests/coverage/attr/nested.rs
+++ b/tests/coverage/attr/nested.rs
@@ -1,4 +1,4 @@
-#![feature(stmt_expr_attributes)]
+#![feature(coverage_attribute, stmt_expr_attributes)]
 //@ edition: 2021
 //@ reference: attributes.coverage.nesting
 
diff --git a/tests/coverage/attr/off-on-sandwich.cov-map b/tests/coverage/attr/off-on-sandwich.cov-map
index ae5c9bd19a2..ef6f5a9dc42 100644
--- a/tests/coverage/attr/off-on-sandwich.cov-map
+++ b/tests/coverage/attr/off-on-sandwich.cov-map
@@ -1,30 +1,30 @@
 Function name: off_on_sandwich::dense_a::dense_b
-Raw bytes (14): 0x[01, 01, 00, 02, 01, 0f, 05, 02, 12, 01, 07, 05, 00, 06]
+Raw bytes (14): 0x[01, 01, 00, 02, 01, 10, 05, 02, 12, 01, 07, 05, 00, 06]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 2
-- Code(Counter(0)) at (prev + 15, 5) to (start + 2, 18)
+- Code(Counter(0)) at (prev + 16, 5) to (start + 2, 18)
 - Code(Counter(0)) at (prev + 7, 5) to (start + 0, 6)
 Highest counter ID seen: c0
 
 Function name: off_on_sandwich::sparse_a::sparse_b::sparse_c
-Raw bytes (14): 0x[01, 01, 00, 02, 01, 21, 09, 02, 17, 01, 0b, 09, 00, 0a]
+Raw bytes (14): 0x[01, 01, 00, 02, 01, 22, 09, 02, 17, 01, 0b, 09, 00, 0a]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 2
-- Code(Counter(0)) at (prev + 33, 9) to (start + 2, 23)
+- Code(Counter(0)) at (prev + 34, 9) to (start + 2, 23)
 - Code(Counter(0)) at (prev + 11, 9) to (start + 0, 10)
 Highest counter ID seen: c0
 
 Function name: off_on_sandwich::sparse_a::sparse_b::sparse_c::sparse_d
-Raw bytes (14): 0x[01, 01, 00, 02, 01, 24, 0d, 02, 1b, 01, 07, 0d, 00, 0e]
+Raw bytes (14): 0x[01, 01, 00, 02, 01, 25, 0d, 02, 1b, 01, 07, 0d, 00, 0e]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 2
-- Code(Counter(0)) at (prev + 36, 13) to (start + 2, 27)
+- Code(Counter(0)) at (prev + 37, 13) to (start + 2, 27)
 - Code(Counter(0)) at (prev + 7, 13) to (start + 0, 14)
 Highest counter ID seen: c0
 
diff --git a/tests/coverage/attr/off-on-sandwich.coverage b/tests/coverage/attr/off-on-sandwich.coverage
index 7a8c01b31eb..4fbc3884903 100644
--- a/tests/coverage/attr/off-on-sandwich.coverage
+++ b/tests/coverage/attr/off-on-sandwich.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |//@ reference: attributes.coverage.nesting
    LL|       |
diff --git a/tests/coverage/attr/off-on-sandwich.rs b/tests/coverage/attr/off-on-sandwich.rs
index 6603e071dee..3d914c99b62 100644
--- a/tests/coverage/attr/off-on-sandwich.rs
+++ b/tests/coverage/attr/off-on-sandwich.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 //@ reference: attributes.coverage.nesting
 
diff --git a/tests/coverage/auxiliary/executor.rs b/tests/coverage/auxiliary/executor.rs
index ed1fe032ef4..c282414fb8e 100644
--- a/tests/coverage/auxiliary/executor.rs
+++ b/tests/coverage/auxiliary/executor.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 
 use core::future::Future;
diff --git a/tests/coverage/await_ready.cov-map b/tests/coverage/await_ready.cov-map
index ea16b36b616..bc1af4e42e8 100644
--- a/tests/coverage/await_ready.cov-map
+++ b/tests/coverage/await_ready.cov-map
@@ -1,19 +1,19 @@
 Function name: await_ready::await_ready
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 0d, 01, 00, 1e]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 0e, 01, 00, 1e]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 13, 1) to (start + 0, 30)
+- Code(Counter(0)) at (prev + 14, 1) to (start + 0, 30)
 Highest counter ID seen: c0
 
 Function name: await_ready::await_ready::{closure#0}
-Raw bytes (14): 0x[01, 01, 00, 02, 01, 0d, 1e, 03, 0f, 05, 04, 01, 00, 02]
+Raw bytes (14): 0x[01, 01, 00, 02, 01, 0e, 1e, 03, 0f, 05, 04, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 2
-- Code(Counter(0)) at (prev + 13, 30) to (start + 3, 15)
+- Code(Counter(0)) at (prev + 14, 30) to (start + 3, 15)
 - Code(Counter(1)) at (prev + 4, 1) to (start + 0, 2)
 Highest counter ID seen: c1
 
diff --git a/tests/coverage/await_ready.coverage b/tests/coverage/await_ready.coverage
index 40107a92e41..1150d807e76 100644
--- a/tests/coverage/await_ready.coverage
+++ b/tests/coverage/await_ready.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |#![coverage(off)]
    LL|       |//@ edition: 2021
    LL|       |
diff --git a/tests/coverage/await_ready.rs b/tests/coverage/await_ready.rs
index 8fbdf7b8004..9eaa31dedda 100644
--- a/tests/coverage/await_ready.rs
+++ b/tests/coverage/await_ready.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 #![coverage(off)]
 //@ edition: 2021
 
diff --git a/tests/coverage/bad_counter_ids.cov-map b/tests/coverage/bad_counter_ids.cov-map
index ae9db139e3d..2b5399f33bb 100644
--- a/tests/coverage/bad_counter_ids.cov-map
+++ b/tests/coverage/bad_counter_ids.cov-map
@@ -1,88 +1,88 @@
 Function name: bad_counter_ids::eq_bad
-Raw bytes (14): 0x[01, 01, 00, 02, 01, 23, 01, 02, 1f, 00, 03, 01, 00, 02]
+Raw bytes (14): 0x[01, 01, 00, 02, 01, 24, 01, 02, 1f, 00, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 2
-- Code(Counter(0)) at (prev + 35, 1) to (start + 2, 31)
+- Code(Counter(0)) at (prev + 36, 1) to (start + 2, 31)
 - Code(Zero) at (prev + 3, 1) to (start + 0, 2)
 Highest counter ID seen: c0
 
 Function name: bad_counter_ids::eq_bad_message
-Raw bytes (21): 0x[01, 01, 01, 01, 00, 03, 01, 28, 01, 02, 0f, 02, 02, 20, 00, 2b, 00, 01, 01, 00, 02]
+Raw bytes (21): 0x[01, 01, 01, 01, 00, 03, 01, 29, 01, 02, 0f, 02, 02, 20, 00, 2b, 00, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
 - expression 0 operands: lhs = Counter(0), rhs = Zero
 Number of file 0 mappings: 3
-- Code(Counter(0)) at (prev + 40, 1) to (start + 2, 15)
+- Code(Counter(0)) at (prev + 41, 1) to (start + 2, 15)
 - Code(Expression(0, Sub)) at (prev + 2, 32) to (start + 0, 43)
     = (c0 - Zero)
 - Code(Zero) at (prev + 1, 1) to (start + 0, 2)
 Highest counter ID seen: c0
 
 Function name: bad_counter_ids::eq_good
-Raw bytes (14): 0x[01, 01, 00, 02, 01, 0f, 01, 02, 1f, 05, 03, 01, 00, 02]
+Raw bytes (14): 0x[01, 01, 00, 02, 01, 10, 01, 02, 1f, 05, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 2
-- Code(Counter(0)) at (prev + 15, 1) to (start + 2, 31)
+- Code(Counter(0)) at (prev + 16, 1) to (start + 2, 31)
 - Code(Counter(1)) at (prev + 3, 1) to (start + 0, 2)
 Highest counter ID seen: c1
 
 Function name: bad_counter_ids::eq_good_message
-Raw bytes (19): 0x[01, 01, 00, 03, 01, 14, 01, 02, 0f, 00, 02, 20, 00, 2b, 05, 01, 01, 00, 02]
+Raw bytes (19): 0x[01, 01, 00, 03, 01, 15, 01, 02, 0f, 00, 02, 20, 00, 2b, 05, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 3
-- Code(Counter(0)) at (prev + 20, 1) to (start + 2, 15)
+- Code(Counter(0)) at (prev + 21, 1) to (start + 2, 15)
 - Code(Zero) at (prev + 2, 32) to (start + 0, 43)
 - Code(Counter(1)) at (prev + 1, 1) to (start + 0, 2)
 Highest counter ID seen: c1
 
 Function name: bad_counter_ids::ne_bad
-Raw bytes (14): 0x[01, 01, 00, 02, 01, 2d, 01, 02, 1f, 00, 03, 01, 00, 02]
+Raw bytes (14): 0x[01, 01, 00, 02, 01, 2e, 01, 02, 1f, 00, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 2
-- Code(Counter(0)) at (prev + 45, 1) to (start + 2, 31)
+- Code(Counter(0)) at (prev + 46, 1) to (start + 2, 31)
 - Code(Zero) at (prev + 3, 1) to (start + 0, 2)
 Highest counter ID seen: c0
 
 Function name: bad_counter_ids::ne_bad_message
-Raw bytes (19): 0x[01, 01, 00, 03, 01, 32, 01, 02, 0f, 05, 02, 20, 00, 2b, 00, 01, 01, 00, 02]
+Raw bytes (19): 0x[01, 01, 00, 03, 01, 33, 01, 02, 0f, 05, 02, 20, 00, 2b, 00, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 3
-- Code(Counter(0)) at (prev + 50, 1) to (start + 2, 15)
+- Code(Counter(0)) at (prev + 51, 1) to (start + 2, 15)
 - Code(Counter(1)) at (prev + 2, 32) to (start + 0, 43)
 - Code(Zero) at (prev + 1, 1) to (start + 0, 2)
 Highest counter ID seen: c1
 
 Function name: bad_counter_ids::ne_good
-Raw bytes (16): 0x[01, 01, 01, 01, 00, 02, 01, 19, 01, 02, 1f, 02, 03, 01, 00, 02]
+Raw bytes (16): 0x[01, 01, 01, 01, 00, 02, 01, 1a, 01, 02, 1f, 02, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
 - expression 0 operands: lhs = Counter(0), rhs = Zero
 Number of file 0 mappings: 2
-- Code(Counter(0)) at (prev + 25, 1) to (start + 2, 31)
+- Code(Counter(0)) at (prev + 26, 1) to (start + 2, 31)
 - Code(Expression(0, Sub)) at (prev + 3, 1) to (start + 0, 2)
     = (c0 - Zero)
 Highest counter ID seen: c0
 
 Function name: bad_counter_ids::ne_good_message
-Raw bytes (21): 0x[01, 01, 01, 01, 00, 03, 01, 1e, 01, 02, 0f, 00, 02, 20, 00, 2b, 02, 01, 01, 00, 02]
+Raw bytes (21): 0x[01, 01, 01, 01, 00, 03, 01, 1f, 01, 02, 0f, 00, 02, 20, 00, 2b, 02, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
 - expression 0 operands: lhs = Counter(0), rhs = Zero
 Number of file 0 mappings: 3
-- Code(Counter(0)) at (prev + 30, 1) to (start + 2, 15)
+- Code(Counter(0)) at (prev + 31, 1) to (start + 2, 15)
 - Code(Zero) at (prev + 2, 32) to (start + 0, 43)
 - Code(Expression(0, Sub)) at (prev + 1, 1) to (start + 0, 2)
     = (c0 - Zero)
diff --git a/tests/coverage/bad_counter_ids.coverage b/tests/coverage/bad_counter_ids.coverage
index eede634923d..f6c69913cdd 100644
--- a/tests/coverage/bad_counter_ids.coverage
+++ b/tests/coverage/bad_counter_ids.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |//@ compile-flags: -Copt-level=0 -Zmir-opt-level=3
    LL|       |
diff --git a/tests/coverage/bad_counter_ids.rs b/tests/coverage/bad_counter_ids.rs
index 8fa0d83bf20..ef31d682e4f 100644
--- a/tests/coverage/bad_counter_ids.rs
+++ b/tests/coverage/bad_counter_ids.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 //@ compile-flags: -Copt-level=0 -Zmir-opt-level=3
 
diff --git a/tests/coverage/branch/generics.cov-map b/tests/coverage/branch/generics.cov-map
index 9ff8e29f9e7..656890634ff 100644
--- a/tests/coverage/branch/generics.cov-map
+++ b/tests/coverage/branch/generics.cov-map
@@ -1,11 +1,11 @@
 Function name: generics::print_size::<()>
-Raw bytes (33): 0x[01, 01, 01, 01, 05, 05, 01, 05, 01, 01, 24, 20, 05, 02, 01, 08, 00, 24, 05, 00, 25, 02, 06, 02, 02, 0c, 02, 06, 01, 03, 01, 00, 02]
+Raw bytes (33): 0x[01, 01, 01, 01, 05, 05, 01, 06, 01, 01, 24, 20, 05, 02, 01, 08, 00, 24, 05, 00, 25, 02, 06, 02, 02, 0c, 02, 06, 01, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
 - expression 0 operands: lhs = Counter(0), rhs = Counter(1)
 Number of file 0 mappings: 5
-- Code(Counter(0)) at (prev + 5, 1) to (start + 1, 36)
+- Code(Counter(0)) at (prev + 6, 1) to (start + 1, 36)
 - Branch { true: Counter(1), false: Expression(0, Sub) } at (prev + 1, 8) to (start + 0, 36)
     true  = c1
     false = (c0 - c1)
@@ -16,13 +16,13 @@ Number of file 0 mappings: 5
 Highest counter ID seen: c1
 
 Function name: generics::print_size::<u32>
-Raw bytes (33): 0x[01, 01, 01, 01, 05, 05, 01, 05, 01, 01, 24, 20, 05, 02, 01, 08, 00, 24, 05, 00, 25, 02, 06, 02, 02, 0c, 02, 06, 01, 03, 01, 00, 02]
+Raw bytes (33): 0x[01, 01, 01, 01, 05, 05, 01, 06, 01, 01, 24, 20, 05, 02, 01, 08, 00, 24, 05, 00, 25, 02, 06, 02, 02, 0c, 02, 06, 01, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
 - expression 0 operands: lhs = Counter(0), rhs = Counter(1)
 Number of file 0 mappings: 5
-- Code(Counter(0)) at (prev + 5, 1) to (start + 1, 36)
+- Code(Counter(0)) at (prev + 6, 1) to (start + 1, 36)
 - Branch { true: Counter(1), false: Expression(0, Sub) } at (prev + 1, 8) to (start + 0, 36)
     true  = c1
     false = (c0 - c1)
@@ -33,13 +33,13 @@ Number of file 0 mappings: 5
 Highest counter ID seen: c1
 
 Function name: generics::print_size::<u64>
-Raw bytes (33): 0x[01, 01, 01, 01, 05, 05, 01, 05, 01, 01, 24, 20, 05, 02, 01, 08, 00, 24, 05, 00, 25, 02, 06, 02, 02, 0c, 02, 06, 01, 03, 01, 00, 02]
+Raw bytes (33): 0x[01, 01, 01, 01, 05, 05, 01, 06, 01, 01, 24, 20, 05, 02, 01, 08, 00, 24, 05, 00, 25, 02, 06, 02, 02, 0c, 02, 06, 01, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
 - expression 0 operands: lhs = Counter(0), rhs = Counter(1)
 Number of file 0 mappings: 5
-- Code(Counter(0)) at (prev + 5, 1) to (start + 1, 36)
+- Code(Counter(0)) at (prev + 6, 1) to (start + 1, 36)
 - Branch { true: Counter(1), false: Expression(0, Sub) } at (prev + 1, 8) to (start + 0, 36)
     true  = c1
     false = (c0 - c1)
diff --git a/tests/coverage/branch/generics.coverage b/tests/coverage/branch/generics.coverage
index 849ddfa7a72..85f73d45f65 100644
--- a/tests/coverage/branch/generics.coverage
+++ b/tests/coverage/branch/generics.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |//@ compile-flags: -Zcoverage-options=branch
    LL|       |//@ llvm-cov-flags: --show-branches=count
diff --git a/tests/coverage/branch/generics.rs b/tests/coverage/branch/generics.rs
index 24bfdaaa687..d870ace7006 100644
--- a/tests/coverage/branch/generics.rs
+++ b/tests/coverage/branch/generics.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 //@ compile-flags: -Zcoverage-options=branch
 //@ llvm-cov-flags: --show-branches=count
diff --git a/tests/coverage/branch/guard.cov-map b/tests/coverage/branch/guard.cov-map
index 9e02240f1a2..7ca499bd847 100644
--- a/tests/coverage/branch/guard.cov-map
+++ b/tests/coverage/branch/guard.cov-map
@@ -1,5 +1,5 @@
 Function name: guard::branch_match_guard
-Raw bytes (89): 0x[01, 01, 08, 05, 0d, 05, 17, 0d, 11, 1f, 17, 05, 09, 0d, 11, 1f, 15, 05, 09, 0d, 01, 0b, 01, 01, 10, 02, 03, 0b, 00, 0c, 15, 01, 14, 02, 0a, 0d, 03, 0e, 00, 0f, 05, 00, 14, 00, 19, 20, 0d, 02, 00, 14, 00, 1e, 0d, 00, 1d, 02, 0a, 11, 03, 0e, 00, 0f, 02, 00, 14, 00, 19, 20, 11, 06, 00, 14, 00, 1e, 11, 00, 1d, 02, 0a, 0e, 03, 0e, 02, 0a, 1b, 04, 01, 00, 02]
+Raw bytes (89): 0x[01, 01, 08, 05, 0d, 05, 17, 0d, 11, 1f, 17, 05, 09, 0d, 11, 1f, 15, 05, 09, 0d, 01, 0c, 01, 01, 10, 02, 03, 0b, 00, 0c, 15, 01, 14, 02, 0a, 0d, 03, 0e, 00, 0f, 05, 00, 14, 00, 19, 20, 0d, 02, 00, 14, 00, 1e, 0d, 00, 1d, 02, 0a, 11, 03, 0e, 00, 0f, 02, 00, 14, 00, 19, 20, 11, 06, 00, 14, 00, 1e, 11, 00, 1d, 02, 0a, 0e, 03, 0e, 02, 0a, 1b, 04, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 8
@@ -12,7 +12,7 @@ Number of expressions: 8
 - expression 6 operands: lhs = Expression(7, Add), rhs = Counter(5)
 - expression 7 operands: lhs = Counter(1), rhs = Counter(2)
 Number of file 0 mappings: 13
-- Code(Counter(0)) at (prev + 11, 1) to (start + 1, 16)
+- Code(Counter(0)) at (prev + 12, 1) to (start + 1, 16)
 - Code(Expression(0, Sub)) at (prev + 3, 11) to (start + 0, 12)
     = (c1 - c3)
 - Code(Counter(5)) at (prev + 1, 20) to (start + 2, 10)
diff --git a/tests/coverage/branch/guard.coverage b/tests/coverage/branch/guard.coverage
index 3376209d373..f89b965b5d0 100644
--- a/tests/coverage/branch/guard.coverage
+++ b/tests/coverage/branch/guard.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |//@ compile-flags: -Zcoverage-options=branch
    LL|       |//@ llvm-cov-flags: --show-branches=count
diff --git a/tests/coverage/branch/guard.rs b/tests/coverage/branch/guard.rs
index 78b79a62946..fa049e6206d 100644
--- a/tests/coverage/branch/guard.rs
+++ b/tests/coverage/branch/guard.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 //@ compile-flags: -Zcoverage-options=branch
 //@ llvm-cov-flags: --show-branches=count
diff --git a/tests/coverage/branch/if-let.coverage b/tests/coverage/branch/if-let.coverage
index 368597f1daa..9a3f0113f75 100644
--- a/tests/coverage/branch/if-let.coverage
+++ b/tests/coverage/branch/if-let.coverage
@@ -1,4 +1,4 @@
-   LL|       |#![feature(let_chains)]
+   LL|       |#![feature(coverage_attribute, let_chains)]
    LL|       |//@ edition: 2021
    LL|       |//@ compile-flags: -Zcoverage-options=branch
    LL|       |//@ llvm-cov-flags: --show-branches=count
diff --git a/tests/coverage/branch/if-let.rs b/tests/coverage/branch/if-let.rs
index 1ac506964b1..13db00a82b1 100644
--- a/tests/coverage/branch/if-let.rs
+++ b/tests/coverage/branch/if-let.rs
@@ -1,4 +1,4 @@
-#![feature(let_chains)]
+#![feature(coverage_attribute, let_chains)]
 //@ edition: 2021
 //@ compile-flags: -Zcoverage-options=branch
 //@ llvm-cov-flags: --show-branches=count
diff --git a/tests/coverage/branch/if.cov-map b/tests/coverage/branch/if.cov-map
index bd507c5a324..3d9a1d2e1ab 100644
--- a/tests/coverage/branch/if.cov-map
+++ b/tests/coverage/branch/if.cov-map
@@ -1,5 +1,5 @@
 Function name: if::branch_and
-Raw bytes (54): 0x[01, 01, 03, 05, 09, 09, 0d, 05, 0d, 08, 01, 2a, 01, 01, 10, 05, 03, 08, 00, 09, 20, 09, 02, 00, 08, 00, 09, 09, 00, 0d, 00, 0e, 20, 0d, 06, 00, 0d, 00, 0e, 0d, 00, 0f, 02, 06, 0a, 02, 0c, 02, 06, 05, 03, 01, 00, 02]
+Raw bytes (54): 0x[01, 01, 03, 05, 09, 09, 0d, 05, 0d, 08, 01, 2b, 01, 01, 10, 05, 03, 08, 00, 09, 20, 09, 02, 00, 08, 00, 09, 09, 00, 0d, 00, 0e, 20, 0d, 06, 00, 0d, 00, 0e, 0d, 00, 0f, 02, 06, 0a, 02, 0c, 02, 06, 05, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 3
@@ -7,7 +7,7 @@ Number of expressions: 3
 - expression 1 operands: lhs = Counter(2), rhs = Counter(3)
 - expression 2 operands: lhs = Counter(1), rhs = Counter(3)
 Number of file 0 mappings: 8
-- Code(Counter(0)) at (prev + 42, 1) to (start + 1, 16)
+- Code(Counter(0)) at (prev + 43, 1) to (start + 1, 16)
 - Code(Counter(1)) at (prev + 3, 8) to (start + 0, 9)
 - Branch { true: Counter(2), false: Expression(0, Sub) } at (prev + 0, 8) to (start + 0, 9)
     true  = c2
@@ -23,7 +23,7 @@ Number of file 0 mappings: 8
 Highest counter ID seen: c3
 
 Function name: if::branch_not
-Raw bytes (116): 0x[01, 01, 07, 05, 09, 05, 0d, 05, 0d, 05, 11, 05, 11, 05, 15, 05, 15, 12, 01, 0b, 01, 01, 10, 05, 03, 08, 00, 09, 20, 09, 02, 00, 08, 00, 09, 09, 01, 09, 00, 11, 02, 01, 05, 00, 06, 05, 01, 08, 00, 0a, 20, 0a, 0d, 00, 08, 00, 0a, 0a, 00, 0b, 02, 06, 0d, 02, 05, 00, 06, 05, 01, 08, 00, 0b, 20, 11, 12, 00, 08, 00, 0b, 11, 00, 0c, 02, 06, 12, 02, 05, 00, 06, 05, 01, 08, 00, 0c, 20, 1a, 15, 00, 08, 00, 0c, 1a, 00, 0d, 02, 06, 15, 02, 05, 00, 06, 05, 01, 01, 00, 02]
+Raw bytes (116): 0x[01, 01, 07, 05, 09, 05, 0d, 05, 0d, 05, 11, 05, 11, 05, 15, 05, 15, 12, 01, 0c, 01, 01, 10, 05, 03, 08, 00, 09, 20, 09, 02, 00, 08, 00, 09, 09, 01, 09, 00, 11, 02, 01, 05, 00, 06, 05, 01, 08, 00, 0a, 20, 0a, 0d, 00, 08, 00, 0a, 0a, 00, 0b, 02, 06, 0d, 02, 05, 00, 06, 05, 01, 08, 00, 0b, 20, 11, 12, 00, 08, 00, 0b, 11, 00, 0c, 02, 06, 12, 02, 05, 00, 06, 05, 01, 08, 00, 0c, 20, 1a, 15, 00, 08, 00, 0c, 1a, 00, 0d, 02, 06, 15, 02, 05, 00, 06, 05, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 7
@@ -35,7 +35,7 @@ Number of expressions: 7
 - expression 5 operands: lhs = Counter(1), rhs = Counter(5)
 - expression 6 operands: lhs = Counter(1), rhs = Counter(5)
 Number of file 0 mappings: 18
-- Code(Counter(0)) at (prev + 11, 1) to (start + 1, 16)
+- Code(Counter(0)) at (prev + 12, 1) to (start + 1, 16)
 - Code(Counter(1)) at (prev + 3, 8) to (start + 0, 9)
 - Branch { true: Counter(2), false: Expression(0, Sub) } at (prev + 0, 8) to (start + 0, 9)
     true  = c2
@@ -68,7 +68,7 @@ Number of file 0 mappings: 18
 Highest counter ID seen: c5
 
 Function name: if::branch_not_as
-Raw bytes (90): 0x[01, 01, 05, 05, 09, 05, 0d, 05, 0d, 05, 11, 05, 11, 0e, 01, 1c, 01, 01, 10, 05, 03, 08, 00, 14, 20, 02, 09, 00, 08, 00, 14, 02, 00, 15, 02, 06, 09, 02, 05, 00, 06, 05, 01, 08, 00, 15, 20, 0d, 0a, 00, 08, 00, 15, 0d, 00, 16, 02, 06, 0a, 02, 05, 00, 06, 05, 01, 08, 00, 16, 20, 12, 11, 00, 08, 00, 16, 12, 00, 17, 02, 06, 11, 02, 05, 00, 06, 05, 01, 01, 00, 02]
+Raw bytes (90): 0x[01, 01, 05, 05, 09, 05, 0d, 05, 0d, 05, 11, 05, 11, 0e, 01, 1d, 01, 01, 10, 05, 03, 08, 00, 14, 20, 02, 09, 00, 08, 00, 14, 02, 00, 15, 02, 06, 09, 02, 05, 00, 06, 05, 01, 08, 00, 15, 20, 0d, 0a, 00, 08, 00, 15, 0d, 00, 16, 02, 06, 0a, 02, 05, 00, 06, 05, 01, 08, 00, 16, 20, 12, 11, 00, 08, 00, 16, 12, 00, 17, 02, 06, 11, 02, 05, 00, 06, 05, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 5
@@ -78,7 +78,7 @@ Number of expressions: 5
 - expression 3 operands: lhs = Counter(1), rhs = Counter(4)
 - expression 4 operands: lhs = Counter(1), rhs = Counter(4)
 Number of file 0 mappings: 14
-- Code(Counter(0)) at (prev + 28, 1) to (start + 1, 16)
+- Code(Counter(0)) at (prev + 29, 1) to (start + 1, 16)
 - Code(Counter(1)) at (prev + 3, 8) to (start + 0, 20)
 - Branch { true: Expression(0, Sub), false: Counter(2) } at (prev + 0, 8) to (start + 0, 20)
     true  = (c1 - c2)
@@ -104,7 +104,7 @@ Number of file 0 mappings: 14
 Highest counter ID seen: c4
 
 Function name: if::branch_or
-Raw bytes (60): 0x[01, 01, 06, 05, 09, 05, 17, 09, 0d, 09, 0d, 05, 17, 09, 0d, 08, 01, 34, 01, 01, 10, 05, 03, 08, 00, 09, 20, 09, 02, 00, 08, 00, 09, 02, 00, 0d, 00, 0e, 20, 0d, 12, 00, 0d, 00, 0e, 17, 00, 0f, 02, 06, 12, 02, 0c, 02, 06, 05, 03, 01, 00, 02]
+Raw bytes (60): 0x[01, 01, 06, 05, 09, 05, 17, 09, 0d, 09, 0d, 05, 17, 09, 0d, 08, 01, 35, 01, 01, 10, 05, 03, 08, 00, 09, 20, 09, 02, 00, 08, 00, 09, 02, 00, 0d, 00, 0e, 20, 0d, 12, 00, 0d, 00, 0e, 17, 00, 0f, 02, 06, 12, 02, 0c, 02, 06, 05, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 6
@@ -115,7 +115,7 @@ Number of expressions: 6
 - expression 4 operands: lhs = Counter(1), rhs = Expression(5, Add)
 - expression 5 operands: lhs = Counter(2), rhs = Counter(3)
 Number of file 0 mappings: 8
-- Code(Counter(0)) at (prev + 52, 1) to (start + 1, 16)
+- Code(Counter(0)) at (prev + 53, 1) to (start + 1, 16)
 - Code(Counter(1)) at (prev + 3, 8) to (start + 0, 9)
 - Branch { true: Counter(2), false: Expression(0, Sub) } at (prev + 0, 8) to (start + 0, 9)
     true  = c2
diff --git a/tests/coverage/branch/if.coverage b/tests/coverage/branch/if.coverage
index fd0a3d87a8d..3d107188ca6 100644
--- a/tests/coverage/branch/if.coverage
+++ b/tests/coverage/branch/if.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |//@ compile-flags: -Zcoverage-options=branch
    LL|       |//@ llvm-cov-flags: --show-branches=count
diff --git a/tests/coverage/branch/if.rs b/tests/coverage/branch/if.rs
index 9e06ffc1aa5..151eede75bb 100644
--- a/tests/coverage/branch/if.rs
+++ b/tests/coverage/branch/if.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 //@ compile-flags: -Zcoverage-options=branch
 //@ llvm-cov-flags: --show-branches=count
diff --git a/tests/coverage/branch/lazy-boolean.cov-map b/tests/coverage/branch/lazy-boolean.cov-map
index 70819505485..94522734bcd 100644
--- a/tests/coverage/branch/lazy-boolean.cov-map
+++ b/tests/coverage/branch/lazy-boolean.cov-map
@@ -1,11 +1,11 @@
 Function name: lazy_boolean::branch_and
-Raw bytes (38): 0x[01, 01, 01, 05, 09, 06, 01, 12, 01, 01, 10, 05, 04, 09, 00, 0a, 05, 00, 0d, 00, 0e, 20, 09, 02, 00, 0d, 00, 0e, 09, 00, 12, 00, 13, 05, 01, 05, 01, 02]
+Raw bytes (38): 0x[01, 01, 01, 05, 09, 06, 01, 13, 01, 01, 10, 05, 04, 09, 00, 0a, 05, 00, 0d, 00, 0e, 20, 09, 02, 00, 0d, 00, 0e, 09, 00, 12, 00, 13, 05, 01, 05, 01, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
 - expression 0 operands: lhs = Counter(1), rhs = Counter(2)
 Number of file 0 mappings: 6
-- Code(Counter(0)) at (prev + 18, 1) to (start + 1, 16)
+- Code(Counter(0)) at (prev + 19, 1) to (start + 1, 16)
 - Code(Counter(1)) at (prev + 4, 9) to (start + 0, 10)
 - Code(Counter(1)) at (prev + 0, 13) to (start + 0, 14)
 - Branch { true: Counter(2), false: Expression(0, Sub) } at (prev + 0, 13) to (start + 0, 14)
@@ -16,13 +16,13 @@ Number of file 0 mappings: 6
 Highest counter ID seen: c2
 
 Function name: lazy_boolean::branch_or
-Raw bytes (38): 0x[01, 01, 01, 05, 09, 06, 01, 1a, 01, 01, 10, 05, 04, 09, 00, 0a, 05, 00, 0d, 00, 0e, 20, 09, 02, 00, 0d, 00, 0e, 02, 00, 12, 00, 13, 05, 01, 05, 01, 02]
+Raw bytes (38): 0x[01, 01, 01, 05, 09, 06, 01, 1b, 01, 01, 10, 05, 04, 09, 00, 0a, 05, 00, 0d, 00, 0e, 20, 09, 02, 00, 0d, 00, 0e, 02, 00, 12, 00, 13, 05, 01, 05, 01, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
 - expression 0 operands: lhs = Counter(1), rhs = Counter(2)
 Number of file 0 mappings: 6
-- Code(Counter(0)) at (prev + 26, 1) to (start + 1, 16)
+- Code(Counter(0)) at (prev + 27, 1) to (start + 1, 16)
 - Code(Counter(1)) at (prev + 4, 9) to (start + 0, 10)
 - Code(Counter(1)) at (prev + 0, 13) to (start + 0, 14)
 - Branch { true: Counter(2), false: Expression(0, Sub) } at (prev + 0, 13) to (start + 0, 14)
@@ -34,7 +34,7 @@ Number of file 0 mappings: 6
 Highest counter ID seen: c2
 
 Function name: lazy_boolean::chain
-Raw bytes (141): 0x[01, 01, 0f, 05, 09, 09, 0d, 0d, 11, 05, 15, 05, 15, 05, 3b, 15, 19, 05, 3b, 15, 19, 05, 37, 3b, 1d, 15, 19, 05, 37, 3b, 1d, 15, 19, 13, 01, 23, 01, 01, 10, 05, 04, 09, 00, 0a, 05, 00, 0d, 00, 12, 20, 09, 02, 00, 0d, 00, 12, 09, 00, 16, 00, 1b, 20, 0d, 06, 00, 16, 00, 1b, 0d, 00, 1f, 00, 24, 20, 11, 0a, 00, 1f, 00, 24, 11, 00, 28, 00, 2d, 05, 01, 05, 00, 11, 05, 03, 09, 00, 0a, 05, 00, 0d, 00, 12, 20, 15, 12, 00, 0d, 00, 12, 12, 00, 16, 00, 1b, 20, 19, 1e, 00, 16, 00, 1b, 1e, 00, 1f, 00, 24, 20, 1d, 32, 00, 1f, 00, 24, 32, 00, 28, 00, 2d, 05, 01, 05, 01, 02]
+Raw bytes (141): 0x[01, 01, 0f, 05, 09, 09, 0d, 0d, 11, 05, 15, 05, 15, 05, 3b, 15, 19, 05, 3b, 15, 19, 05, 37, 3b, 1d, 15, 19, 05, 37, 3b, 1d, 15, 19, 13, 01, 24, 01, 01, 10, 05, 04, 09, 00, 0a, 05, 00, 0d, 00, 12, 20, 09, 02, 00, 0d, 00, 12, 09, 00, 16, 00, 1b, 20, 0d, 06, 00, 16, 00, 1b, 0d, 00, 1f, 00, 24, 20, 11, 0a, 00, 1f, 00, 24, 11, 00, 28, 00, 2d, 05, 01, 05, 00, 11, 05, 03, 09, 00, 0a, 05, 00, 0d, 00, 12, 20, 15, 12, 00, 0d, 00, 12, 12, 00, 16, 00, 1b, 20, 19, 1e, 00, 16, 00, 1b, 1e, 00, 1f, 00, 24, 20, 1d, 32, 00, 1f, 00, 24, 32, 00, 28, 00, 2d, 05, 01, 05, 01, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 15
@@ -54,7 +54,7 @@ Number of expressions: 15
 - expression 13 operands: lhs = Expression(14, Add), rhs = Counter(7)
 - expression 14 operands: lhs = Counter(5), rhs = Counter(6)
 Number of file 0 mappings: 19
-- Code(Counter(0)) at (prev + 35, 1) to (start + 1, 16)
+- Code(Counter(0)) at (prev + 36, 1) to (start + 1, 16)
 - Code(Counter(1)) at (prev + 4, 9) to (start + 0, 10)
 - Code(Counter(1)) at (prev + 0, 13) to (start + 0, 18)
 - Branch { true: Counter(2), false: Expression(0, Sub) } at (prev + 0, 13) to (start + 0, 18)
@@ -91,7 +91,7 @@ Number of file 0 mappings: 19
 Highest counter ID seen: c7
 
 Function name: lazy_boolean::nested_mixed
-Raw bytes (137): 0x[01, 01, 0d, 05, 09, 05, 1f, 09, 0d, 09, 0d, 1f, 11, 09, 0d, 1f, 11, 09, 0d, 05, 15, 15, 19, 05, 19, 05, 33, 19, 1d, 13, 01, 30, 01, 01, 10, 05, 04, 09, 00, 0a, 05, 00, 0e, 00, 13, 20, 09, 02, 00, 0e, 00, 13, 02, 00, 17, 00, 1d, 20, 0d, 06, 00, 17, 00, 1d, 1f, 00, 23, 00, 28, 20, 11, 1a, 00, 23, 00, 28, 1a, 00, 2c, 00, 33, 05, 01, 05, 00, 11, 05, 03, 09, 00, 0a, 05, 00, 0e, 00, 13, 20, 15, 22, 00, 0e, 00, 13, 15, 00, 17, 00, 1c, 20, 19, 26, 00, 17, 00, 1c, 2a, 00, 22, 00, 28, 20, 1d, 2e, 00, 22, 00, 28, 1d, 00, 2c, 00, 33, 05, 01, 05, 01, 02]
+Raw bytes (137): 0x[01, 01, 0d, 05, 09, 05, 1f, 09, 0d, 09, 0d, 1f, 11, 09, 0d, 1f, 11, 09, 0d, 05, 15, 15, 19, 05, 19, 05, 33, 19, 1d, 13, 01, 31, 01, 01, 10, 05, 04, 09, 00, 0a, 05, 00, 0e, 00, 13, 20, 09, 02, 00, 0e, 00, 13, 02, 00, 17, 00, 1d, 20, 0d, 06, 00, 17, 00, 1d, 1f, 00, 23, 00, 28, 20, 11, 1a, 00, 23, 00, 28, 1a, 00, 2c, 00, 33, 05, 01, 05, 00, 11, 05, 03, 09, 00, 0a, 05, 00, 0e, 00, 13, 20, 15, 22, 00, 0e, 00, 13, 15, 00, 17, 00, 1c, 20, 19, 26, 00, 17, 00, 1c, 2a, 00, 22, 00, 28, 20, 1d, 2e, 00, 22, 00, 28, 1d, 00, 2c, 00, 33, 05, 01, 05, 01, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 13
@@ -109,7 +109,7 @@ Number of expressions: 13
 - expression 11 operands: lhs = Counter(1), rhs = Expression(12, Add)
 - expression 12 operands: lhs = Counter(6), rhs = Counter(7)
 Number of file 0 mappings: 19
-- Code(Counter(0)) at (prev + 48, 1) to (start + 1, 16)
+- Code(Counter(0)) at (prev + 49, 1) to (start + 1, 16)
 - Code(Counter(1)) at (prev + 4, 9) to (start + 0, 10)
 - Code(Counter(1)) at (prev + 0, 14) to (start + 0, 19)
 - Branch { true: Counter(2), false: Expression(0, Sub) } at (prev + 0, 14) to (start + 0, 19)
diff --git a/tests/coverage/branch/lazy-boolean.coverage b/tests/coverage/branch/lazy-boolean.coverage
index 6e5dfbd19f3..f6aba1da46e 100644
--- a/tests/coverage/branch/lazy-boolean.coverage
+++ b/tests/coverage/branch/lazy-boolean.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |//@ compile-flags: -Zcoverage-options=branch
    LL|       |//@ llvm-cov-flags: --show-branches=count
diff --git a/tests/coverage/branch/lazy-boolean.rs b/tests/coverage/branch/lazy-boolean.rs
index 68267bf56ed..3c73fc1a87d 100644
--- a/tests/coverage/branch/lazy-boolean.rs
+++ b/tests/coverage/branch/lazy-boolean.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 //@ compile-flags: -Zcoverage-options=branch
 //@ llvm-cov-flags: --show-branches=count
diff --git a/tests/coverage/branch/let-else.cov-map b/tests/coverage/branch/let-else.cov-map
index 466de5d5de3..e6bf7ed6a92 100644
--- a/tests/coverage/branch/let-else.cov-map
+++ b/tests/coverage/branch/let-else.cov-map
@@ -1,11 +1,11 @@
 Function name: let_else::let_else
-Raw bytes (43): 0x[01, 01, 01, 05, 09, 07, 01, 0b, 01, 01, 10, 20, 02, 09, 03, 09, 00, 10, 02, 00, 0e, 00, 0f, 05, 00, 13, 00, 18, 09, 01, 09, 01, 0f, 02, 04, 05, 00, 0b, 05, 01, 01, 00, 02]
+Raw bytes (43): 0x[01, 01, 01, 05, 09, 07, 01, 0c, 01, 01, 10, 20, 02, 09, 03, 09, 00, 10, 02, 00, 0e, 00, 0f, 05, 00, 13, 00, 18, 09, 01, 09, 01, 0f, 02, 04, 05, 00, 0b, 05, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
 - expression 0 operands: lhs = Counter(1), rhs = Counter(2)
 Number of file 0 mappings: 7
-- Code(Counter(0)) at (prev + 11, 1) to (start + 1, 16)
+- Code(Counter(0)) at (prev + 12, 1) to (start + 1, 16)
 - Branch { true: Expression(0, Sub), false: Counter(2) } at (prev + 3, 9) to (start + 0, 16)
     true  = (c1 - c2)
     false = c2
diff --git a/tests/coverage/branch/let-else.coverage b/tests/coverage/branch/let-else.coverage
index f0549205590..22ad8f2b0e1 100644
--- a/tests/coverage/branch/let-else.coverage
+++ b/tests/coverage/branch/let-else.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |//@ compile-flags: -Zcoverage-options=branch
    LL|       |//@ llvm-cov-flags: --show-branches=count
diff --git a/tests/coverage/branch/let-else.rs b/tests/coverage/branch/let-else.rs
index 0d23d956541..af0665d8241 100644
--- a/tests/coverage/branch/let-else.rs
+++ b/tests/coverage/branch/let-else.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 //@ compile-flags: -Zcoverage-options=branch
 //@ llvm-cov-flags: --show-branches=count
diff --git a/tests/coverage/branch/match-arms.cov-map b/tests/coverage/branch/match-arms.cov-map
index 5d9f94923bc..53d0a4edbd0 100644
--- a/tests/coverage/branch/match-arms.cov-map
+++ b/tests/coverage/branch/match-arms.cov-map
@@ -1,5 +1,5 @@
 Function name: match_arms::guards
-Raw bytes (98): 0x[01, 01, 0d, 11, 19, 27, 19, 2b, 00, 2f, 11, 33, 0d, 05, 09, 1f, 25, 23, 21, 27, 1d, 2b, 00, 2f, 11, 33, 0d, 05, 09, 0c, 01, 2f, 01, 01, 10, 11, 03, 0b, 00, 10, 1d, 01, 11, 00, 29, 20, 1d, 05, 00, 17, 00, 1b, 21, 01, 11, 00, 29, 20, 21, 09, 00, 17, 00, 1b, 25, 01, 11, 00, 29, 20, 25, 0d, 00, 17, 00, 1b, 19, 01, 11, 00, 29, 20, 19, 02, 00, 17, 00, 1b, 06, 01, 0e, 00, 18, 1b, 03, 05, 01, 02]
+Raw bytes (98): 0x[01, 01, 0d, 11, 19, 27, 19, 2b, 00, 2f, 11, 33, 0d, 05, 09, 1f, 25, 23, 21, 27, 1d, 2b, 00, 2f, 11, 33, 0d, 05, 09, 0c, 01, 30, 01, 01, 10, 11, 03, 0b, 00, 10, 1d, 01, 11, 00, 29, 20, 1d, 05, 00, 17, 00, 1b, 21, 01, 11, 00, 29, 20, 21, 09, 00, 17, 00, 1b, 25, 01, 11, 00, 29, 20, 25, 0d, 00, 17, 00, 1b, 19, 01, 11, 00, 29, 20, 19, 02, 00, 17, 00, 1b, 06, 01, 0e, 00, 18, 1b, 03, 05, 01, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 13
@@ -17,7 +17,7 @@ Number of expressions: 13
 - expression 11 operands: lhs = Expression(12, Add), rhs = Counter(3)
 - expression 12 operands: lhs = Counter(1), rhs = Counter(2)
 Number of file 0 mappings: 12
-- Code(Counter(0)) at (prev + 47, 1) to (start + 1, 16)
+- Code(Counter(0)) at (prev + 48, 1) to (start + 1, 16)
 - Code(Counter(4)) at (prev + 3, 11) to (start + 0, 16)
 - Code(Counter(7)) at (prev + 1, 17) to (start + 0, 41)
 - Branch { true: Counter(7), false: Counter(1) } at (prev + 0, 23) to (start + 0, 27)
@@ -42,7 +42,7 @@ Number of file 0 mappings: 12
 Highest counter ID seen: c9
 
 Function name: match_arms::match_arms
-Raw bytes (45): 0x[01, 01, 03, 05, 07, 0b, 11, 09, 0d, 07, 01, 17, 01, 01, 10, 05, 03, 0b, 00, 10, 09, 01, 11, 00, 21, 0d, 01, 11, 00, 21, 11, 01, 11, 00, 21, 02, 01, 11, 00, 21, 05, 03, 05, 01, 02]
+Raw bytes (45): 0x[01, 01, 03, 05, 07, 0b, 11, 09, 0d, 07, 01, 18, 01, 01, 10, 05, 03, 0b, 00, 10, 09, 01, 11, 00, 21, 0d, 01, 11, 00, 21, 11, 01, 11, 00, 21, 02, 01, 11, 00, 21, 05, 03, 05, 01, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 3
@@ -50,7 +50,7 @@ Number of expressions: 3
 - expression 1 operands: lhs = Expression(2, Add), rhs = Counter(4)
 - expression 2 operands: lhs = Counter(2), rhs = Counter(3)
 Number of file 0 mappings: 7
-- Code(Counter(0)) at (prev + 23, 1) to (start + 1, 16)
+- Code(Counter(0)) at (prev + 24, 1) to (start + 1, 16)
 - Code(Counter(1)) at (prev + 3, 11) to (start + 0, 16)
 - Code(Counter(2)) at (prev + 1, 17) to (start + 0, 33)
 - Code(Counter(3)) at (prev + 1, 17) to (start + 0, 33)
@@ -61,7 +61,7 @@ Number of file 0 mappings: 7
 Highest counter ID seen: c4
 
 Function name: match_arms::or_patterns
-Raw bytes (57): 0x[01, 01, 04, 09, 0d, 05, 0b, 03, 11, 05, 03, 09, 01, 24, 01, 01, 10, 05, 03, 0b, 00, 10, 09, 01, 11, 00, 12, 0d, 00, 1e, 00, 1f, 03, 00, 24, 00, 2e, 11, 01, 11, 00, 12, 06, 00, 1e, 00, 1f, 0e, 00, 24, 00, 2e, 05, 03, 05, 01, 02]
+Raw bytes (57): 0x[01, 01, 04, 09, 0d, 05, 0b, 03, 11, 05, 03, 09, 01, 25, 01, 01, 10, 05, 03, 0b, 00, 10, 09, 01, 11, 00, 12, 0d, 00, 1e, 00, 1f, 03, 00, 24, 00, 2e, 11, 01, 11, 00, 12, 06, 00, 1e, 00, 1f, 0e, 00, 24, 00, 2e, 05, 03, 05, 01, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 4
@@ -70,7 +70,7 @@ Number of expressions: 4
 - expression 2 operands: lhs = Expression(0, Add), rhs = Counter(4)
 - expression 3 operands: lhs = Counter(1), rhs = Expression(0, Add)
 Number of file 0 mappings: 9
-- Code(Counter(0)) at (prev + 36, 1) to (start + 1, 16)
+- Code(Counter(0)) at (prev + 37, 1) to (start + 1, 16)
 - Code(Counter(1)) at (prev + 3, 11) to (start + 0, 16)
 - Code(Counter(2)) at (prev + 1, 17) to (start + 0, 18)
 - Code(Counter(3)) at (prev + 0, 30) to (start + 0, 31)
diff --git a/tests/coverage/branch/match-arms.coverage b/tests/coverage/branch/match-arms.coverage
index bc797d55a53..ea8a6f97ab1 100644
--- a/tests/coverage/branch/match-arms.coverage
+++ b/tests/coverage/branch/match-arms.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |//@ compile-flags: -Zcoverage-options=branch
    LL|       |//@ llvm-cov-flags: --show-branches=count
diff --git a/tests/coverage/branch/match-arms.rs b/tests/coverage/branch/match-arms.rs
index 6292a9c2050..63151f59ffe 100644
--- a/tests/coverage/branch/match-arms.rs
+++ b/tests/coverage/branch/match-arms.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 //@ compile-flags: -Zcoverage-options=branch
 //@ llvm-cov-flags: --show-branches=count
diff --git a/tests/coverage/branch/match-trivial.cov-map b/tests/coverage/branch/match-trivial.cov-map
index 0a1d8cef050..6af8ce46f5f 100644
--- a/tests/coverage/branch/match-trivial.cov-map
+++ b/tests/coverage/branch/match-trivial.cov-map
@@ -1,19 +1,19 @@
 Function name: match_trivial::_uninhabited (unused)
-Raw bytes (9): 0x[01, 01, 00, 01, 00, 15, 01, 01, 10]
+Raw bytes (9): 0x[01, 01, 00, 01, 00, 16, 01, 01, 10]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Zero) at (prev + 21, 1) to (start + 1, 16)
+- Code(Zero) at (prev + 22, 1) to (start + 1, 16)
 Highest counter ID seen: (none)
 
 Function name: match_trivial::trivial
-Raw bytes (14): 0x[01, 01, 00, 02, 01, 1d, 01, 01, 10, 05, 03, 0b, 05, 02]
+Raw bytes (14): 0x[01, 01, 00, 02, 01, 1e, 01, 01, 10, 05, 03, 0b, 05, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 2
-- Code(Counter(0)) at (prev + 29, 1) to (start + 1, 16)
+- Code(Counter(0)) at (prev + 30, 1) to (start + 1, 16)
 - Code(Counter(1)) at (prev + 3, 11) to (start + 5, 2)
 Highest counter ID seen: c1
 
diff --git a/tests/coverage/branch/match-trivial.coverage b/tests/coverage/branch/match-trivial.coverage
index bd6be9ea3b5..4ffb172e1b6 100644
--- a/tests/coverage/branch/match-trivial.coverage
+++ b/tests/coverage/branch/match-trivial.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |//@ compile-flags: -Zcoverage-options=branch
    LL|       |//@ llvm-cov-flags: --show-branches=count
diff --git a/tests/coverage/branch/match-trivial.rs b/tests/coverage/branch/match-trivial.rs
index 62680916d5c..db8887a26b7 100644
--- a/tests/coverage/branch/match-trivial.rs
+++ b/tests/coverage/branch/match-trivial.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 //@ compile-flags: -Zcoverage-options=branch
 //@ llvm-cov-flags: --show-branches=count
diff --git a/tests/coverage/branch/no-mir-spans.cov-map b/tests/coverage/branch/no-mir-spans.cov-map
index 15ead0726e1..6003efc36ca 100644
--- a/tests/coverage/branch/no-mir-spans.cov-map
+++ b/tests/coverage/branch/no-mir-spans.cov-map
@@ -1,35 +1,35 @@
 Function name: no_mir_spans::while_cond
-Raw bytes (16): 0x[01, 01, 00, 02, 01, 0f, 01, 00, 11, 20, 05, 09, 04, 0b, 00, 10]
+Raw bytes (16): 0x[01, 01, 00, 02, 01, 10, 01, 00, 11, 20, 05, 09, 04, 0b, 00, 10]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 2
-- Code(Counter(0)) at (prev + 15, 1) to (start + 0, 17)
+- Code(Counter(0)) at (prev + 16, 1) to (start + 0, 17)
 - Branch { true: Counter(1), false: Counter(2) } at (prev + 4, 11) to (start + 0, 16)
     true  = c1
     false = c2
 Highest counter ID seen: c2
 
 Function name: no_mir_spans::while_cond_not
-Raw bytes (16): 0x[01, 01, 00, 02, 01, 18, 01, 00, 15, 20, 09, 05, 04, 0b, 00, 14]
+Raw bytes (16): 0x[01, 01, 00, 02, 01, 19, 01, 00, 15, 20, 09, 05, 04, 0b, 00, 14]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 2
-- Code(Counter(0)) at (prev + 24, 1) to (start + 0, 21)
+- Code(Counter(0)) at (prev + 25, 1) to (start + 0, 21)
 - Branch { true: Counter(2), false: Counter(1) } at (prev + 4, 11) to (start + 0, 20)
     true  = c2
     false = c1
 Highest counter ID seen: c2
 
 Function name: no_mir_spans::while_op_and
-Raw bytes (25): 0x[01, 01, 01, 05, 09, 03, 01, 21, 01, 00, 13, 20, 05, 0d, 05, 0b, 00, 10, 20, 02, 09, 00, 14, 00, 19]
+Raw bytes (25): 0x[01, 01, 01, 05, 09, 03, 01, 22, 01, 00, 13, 20, 05, 0d, 05, 0b, 00, 10, 20, 02, 09, 00, 14, 00, 19]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
 - expression 0 operands: lhs = Counter(1), rhs = Counter(2)
 Number of file 0 mappings: 3
-- Code(Counter(0)) at (prev + 33, 1) to (start + 0, 19)
+- Code(Counter(0)) at (prev + 34, 1) to (start + 0, 19)
 - Branch { true: Counter(1), false: Counter(3) } at (prev + 5, 11) to (start + 0, 16)
     true  = c1
     false = c3
@@ -39,13 +39,13 @@ Number of file 0 mappings: 3
 Highest counter ID seen: c3
 
 Function name: no_mir_spans::while_op_or
-Raw bytes (25): 0x[01, 01, 01, 09, 0d, 03, 01, 2c, 01, 00, 12, 20, 05, 09, 05, 0b, 00, 10, 20, 0d, 02, 00, 14, 00, 19]
+Raw bytes (25): 0x[01, 01, 01, 09, 0d, 03, 01, 2d, 01, 00, 12, 20, 05, 09, 05, 0b, 00, 10, 20, 0d, 02, 00, 14, 00, 19]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
 - expression 0 operands: lhs = Counter(2), rhs = Counter(3)
 Number of file 0 mappings: 3
-- Code(Counter(0)) at (prev + 44, 1) to (start + 0, 18)
+- Code(Counter(0)) at (prev + 45, 1) to (start + 0, 18)
 - Branch { true: Counter(1), false: Counter(2) } at (prev + 5, 11) to (start + 0, 16)
     true  = c1
     false = c2
diff --git a/tests/coverage/branch/no-mir-spans.coverage b/tests/coverage/branch/no-mir-spans.coverage
index be5a1ef3442..2cae98ed3ff 100644
--- a/tests/coverage/branch/no-mir-spans.coverage
+++ b/tests/coverage/branch/no-mir-spans.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |//@ compile-flags: -Zcoverage-options=branch,no-mir-spans
    LL|       |//@ llvm-cov-flags: --show-branches=count
diff --git a/tests/coverage/branch/no-mir-spans.rs b/tests/coverage/branch/no-mir-spans.rs
index 47b4d1eff58..acb268f2d45 100644
--- a/tests/coverage/branch/no-mir-spans.rs
+++ b/tests/coverage/branch/no-mir-spans.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 //@ compile-flags: -Zcoverage-options=branch,no-mir-spans
 //@ llvm-cov-flags: --show-branches=count
diff --git a/tests/coverage/branch/while.cov-map b/tests/coverage/branch/while.cov-map
index f2956efade1..5eb08a42803 100644
--- a/tests/coverage/branch/while.cov-map
+++ b/tests/coverage/branch/while.cov-map
@@ -1,11 +1,11 @@
 Function name: while::while_cond
-Raw bytes (38): 0x[01, 01, 01, 05, 09, 06, 01, 0b, 01, 01, 10, 05, 03, 09, 00, 12, 03, 01, 0b, 00, 10, 20, 09, 05, 00, 0b, 00, 10, 09, 00, 11, 02, 06, 05, 03, 01, 00, 02]
+Raw bytes (38): 0x[01, 01, 01, 05, 09, 06, 01, 0c, 01, 01, 10, 05, 03, 09, 00, 12, 03, 01, 0b, 00, 10, 20, 09, 05, 00, 0b, 00, 10, 09, 00, 11, 02, 06, 05, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
 - expression 0 operands: lhs = Counter(1), rhs = Counter(2)
 Number of file 0 mappings: 6
-- Code(Counter(0)) at (prev + 11, 1) to (start + 1, 16)
+- Code(Counter(0)) at (prev + 12, 1) to (start + 1, 16)
 - Code(Counter(1)) at (prev + 3, 9) to (start + 0, 18)
 - Code(Expression(0, Add)) at (prev + 1, 11) to (start + 0, 16)
     = (c1 + c2)
@@ -17,13 +17,13 @@ Number of file 0 mappings: 6
 Highest counter ID seen: c2
 
 Function name: while::while_cond_not
-Raw bytes (38): 0x[01, 01, 01, 05, 09, 06, 01, 14, 01, 01, 10, 05, 03, 09, 00, 12, 03, 01, 0b, 00, 14, 20, 09, 05, 00, 0b, 00, 14, 09, 00, 15, 02, 06, 05, 03, 01, 00, 02]
+Raw bytes (38): 0x[01, 01, 01, 05, 09, 06, 01, 15, 01, 01, 10, 05, 03, 09, 00, 12, 03, 01, 0b, 00, 14, 20, 09, 05, 00, 0b, 00, 14, 09, 00, 15, 02, 06, 05, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
 - expression 0 operands: lhs = Counter(1), rhs = Counter(2)
 Number of file 0 mappings: 6
-- Code(Counter(0)) at (prev + 20, 1) to (start + 1, 16)
+- Code(Counter(0)) at (prev + 21, 1) to (start + 1, 16)
 - Code(Counter(1)) at (prev + 3, 9) to (start + 0, 18)
 - Code(Expression(0, Add)) at (prev + 1, 11) to (start + 0, 20)
     = (c1 + c2)
@@ -35,7 +35,7 @@ Number of file 0 mappings: 6
 Highest counter ID seen: c2
 
 Function name: while::while_op_and
-Raw bytes (56): 0x[01, 01, 04, 05, 09, 03, 0d, 03, 0d, 05, 0d, 08, 01, 1d, 01, 01, 10, 05, 03, 09, 01, 12, 03, 02, 0b, 00, 10, 20, 0a, 0d, 00, 0b, 00, 10, 0a, 00, 14, 00, 19, 20, 09, 0e, 00, 14, 00, 19, 09, 00, 1a, 03, 06, 05, 04, 01, 00, 02]
+Raw bytes (56): 0x[01, 01, 04, 05, 09, 03, 0d, 03, 0d, 05, 0d, 08, 01, 1e, 01, 01, 10, 05, 03, 09, 01, 12, 03, 02, 0b, 00, 10, 20, 0a, 0d, 00, 0b, 00, 10, 0a, 00, 14, 00, 19, 20, 09, 0e, 00, 14, 00, 19, 09, 00, 1a, 03, 06, 05, 04, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 4
@@ -44,7 +44,7 @@ Number of expressions: 4
 - expression 2 operands: lhs = Expression(0, Add), rhs = Counter(3)
 - expression 3 operands: lhs = Counter(1), rhs = Counter(3)
 Number of file 0 mappings: 8
-- Code(Counter(0)) at (prev + 29, 1) to (start + 1, 16)
+- Code(Counter(0)) at (prev + 30, 1) to (start + 1, 16)
 - Code(Counter(1)) at (prev + 3, 9) to (start + 1, 18)
 - Code(Expression(0, Add)) at (prev + 2, 11) to (start + 0, 16)
     = (c1 + c2)
@@ -61,7 +61,7 @@ Number of file 0 mappings: 8
 Highest counter ID seen: c3
 
 Function name: while::while_op_or
-Raw bytes (58): 0x[01, 01, 05, 07, 0d, 05, 09, 05, 0d, 05, 0d, 09, 0d, 08, 01, 28, 01, 01, 10, 05, 03, 09, 01, 12, 03, 02, 0b, 00, 10, 20, 09, 0f, 00, 0b, 00, 10, 0f, 00, 14, 00, 19, 20, 0d, 05, 00, 14, 00, 19, 13, 00, 1a, 03, 06, 05, 04, 01, 00, 02]
+Raw bytes (58): 0x[01, 01, 05, 07, 0d, 05, 09, 05, 0d, 05, 0d, 09, 0d, 08, 01, 29, 01, 01, 10, 05, 03, 09, 01, 12, 03, 02, 0b, 00, 10, 20, 09, 0f, 00, 0b, 00, 10, 0f, 00, 14, 00, 19, 20, 0d, 05, 00, 14, 00, 19, 13, 00, 1a, 03, 06, 05, 04, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 5
@@ -71,7 +71,7 @@ Number of expressions: 5
 - expression 3 operands: lhs = Counter(1), rhs = Counter(3)
 - expression 4 operands: lhs = Counter(2), rhs = Counter(3)
 Number of file 0 mappings: 8
-- Code(Counter(0)) at (prev + 40, 1) to (start + 1, 16)
+- Code(Counter(0)) at (prev + 41, 1) to (start + 1, 16)
 - Code(Counter(1)) at (prev + 3, 9) to (start + 1, 18)
 - Code(Expression(0, Add)) at (prev + 2, 11) to (start + 0, 16)
     = ((c1 + c2) + c3)
diff --git a/tests/coverage/branch/while.coverage b/tests/coverage/branch/while.coverage
index b16c8d7defd..8d9a6c3bc68 100644
--- a/tests/coverage/branch/while.coverage
+++ b/tests/coverage/branch/while.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |//@ compile-flags: -Zcoverage-options=branch
    LL|       |//@ llvm-cov-flags: --show-branches=count
diff --git a/tests/coverage/branch/while.rs b/tests/coverage/branch/while.rs
index e7180c43a5e..507815fbecb 100644
--- a/tests/coverage/branch/while.rs
+++ b/tests/coverage/branch/while.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 //@ compile-flags: -Zcoverage-options=branch
 //@ llvm-cov-flags: --show-branches=count
diff --git a/tests/coverage/closure_macro_async.cov-map b/tests/coverage/closure_macro_async.cov-map
index 6a36ce2e5fe..1bd1460a147 100644
--- a/tests/coverage/closure_macro_async.cov-map
+++ b/tests/coverage/closure_macro_async.cov-map
@@ -1,29 +1,29 @@
 Function name: closure_macro_async::load_configuration_files
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 20, 01, 02, 02]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 21, 01, 02, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 32, 1) to (start + 2, 2)
+- Code(Counter(0)) at (prev + 33, 1) to (start + 2, 2)
 Highest counter ID seen: c0
 
 Function name: closure_macro_async::test
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 24, 01, 00, 2b]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 25, 01, 00, 2b]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 36, 1) to (start + 0, 43)
+- Code(Counter(0)) at (prev + 37, 1) to (start + 0, 43)
 Highest counter ID seen: c0
 
 Function name: closure_macro_async::test::{closure#0}
-Raw bytes (36): 0x[01, 01, 01, 01, 05, 06, 01, 24, 2b, 01, 21, 02, 02, 09, 00, 0f, 01, 00, 12, 00, 54, 05, 00, 54, 00, 55, 02, 02, 09, 02, 0b, 01, 03, 01, 00, 02]
+Raw bytes (36): 0x[01, 01, 01, 01, 05, 06, 01, 25, 2b, 01, 21, 02, 02, 09, 00, 0f, 01, 00, 12, 00, 54, 05, 00, 54, 00, 55, 02, 02, 09, 02, 0b, 01, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
 - expression 0 operands: lhs = Counter(0), rhs = Counter(1)
 Number of file 0 mappings: 6
-- Code(Counter(0)) at (prev + 36, 43) to (start + 1, 33)
+- Code(Counter(0)) at (prev + 37, 43) to (start + 1, 33)
 - Code(Expression(0, Sub)) at (prev + 2, 9) to (start + 0, 15)
     = (c0 - c1)
 - Code(Counter(0)) at (prev + 0, 18) to (start + 0, 84)
@@ -34,7 +34,7 @@ Number of file 0 mappings: 6
 Highest counter ID seen: c1
 
 Function name: closure_macro_async::test::{closure#0}::{closure#0}
-Raw bytes (35): 0x[01, 01, 03, 01, 05, 01, 0b, 05, 09, 05, 01, 13, 1c, 03, 21, 05, 04, 11, 01, 27, 02, 03, 11, 00, 16, 06, 00, 17, 00, 1e, 01, 02, 09, 00, 0a]
+Raw bytes (35): 0x[01, 01, 03, 01, 05, 01, 0b, 05, 09, 05, 01, 14, 1c, 03, 21, 05, 04, 11, 01, 27, 02, 03, 11, 00, 16, 06, 00, 17, 00, 1e, 01, 02, 09, 00, 0a]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 3
@@ -42,7 +42,7 @@ Number of expressions: 3
 - expression 1 operands: lhs = Counter(0), rhs = Expression(2, Add)
 - expression 2 operands: lhs = Counter(1), rhs = Counter(2)
 Number of file 0 mappings: 5
-- Code(Counter(0)) at (prev + 19, 28) to (start + 3, 33)
+- Code(Counter(0)) at (prev + 20, 28) to (start + 3, 33)
 - Code(Counter(1)) at (prev + 4, 17) to (start + 1, 39)
 - Code(Expression(0, Sub)) at (prev + 3, 17) to (start + 0, 22)
     = (c0 - c1)
diff --git a/tests/coverage/closure_macro_async.coverage b/tests/coverage/closure_macro_async.coverage
index efa40489bcf..1e1ffec9f76 100644
--- a/tests/coverage/closure_macro_async.coverage
+++ b/tests/coverage/closure_macro_async.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2018
    LL|       |
    LL|       |//@ aux-build: executor.rs
diff --git a/tests/coverage/closure_macro_async.rs b/tests/coverage/closure_macro_async.rs
index 1f67f2623a1..5dbb438424d 100644
--- a/tests/coverage/closure_macro_async.rs
+++ b/tests/coverage/closure_macro_async.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2018
 
 //@ aux-build: executor.rs
diff --git a/tests/coverage/closure_unit_return.cov-map b/tests/coverage/closure_unit_return.cov-map
index 0d108b3dcc7..9a66e0b0e77 100644
--- a/tests/coverage/closure_unit_return.cov-map
+++ b/tests/coverage/closure_unit_return.cov-map
@@ -1,38 +1,38 @@
 Function name: closure_unit_return::explicit_unit
-Raw bytes (14): 0x[01, 01, 00, 02, 01, 06, 01, 01, 10, 01, 05, 05, 02, 02]
+Raw bytes (14): 0x[01, 01, 00, 02, 01, 07, 01, 01, 10, 01, 05, 05, 02, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 2
-- Code(Counter(0)) at (prev + 6, 1) to (start + 1, 16)
+- Code(Counter(0)) at (prev + 7, 1) to (start + 1, 16)
 - Code(Counter(0)) at (prev + 5, 5) to (start + 2, 2)
 Highest counter ID seen: c0
 
 Function name: closure_unit_return::explicit_unit::{closure#0} (unused)
-Raw bytes (9): 0x[01, 01, 00, 01, 00, 07, 16, 02, 06]
+Raw bytes (9): 0x[01, 01, 00, 01, 00, 08, 16, 02, 06]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Zero) at (prev + 7, 22) to (start + 2, 6)
+- Code(Zero) at (prev + 8, 22) to (start + 2, 6)
 Highest counter ID seen: (none)
 
 Function name: closure_unit_return::implicit_unit
-Raw bytes (14): 0x[01, 01, 00, 02, 01, 0f, 01, 01, 10, 01, 05, 05, 02, 02]
+Raw bytes (14): 0x[01, 01, 00, 02, 01, 10, 01, 01, 10, 01, 05, 05, 02, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 2
-- Code(Counter(0)) at (prev + 15, 1) to (start + 1, 16)
+- Code(Counter(0)) at (prev + 16, 1) to (start + 1, 16)
 - Code(Counter(0)) at (prev + 5, 5) to (start + 2, 2)
 Highest counter ID seen: c0
 
 Function name: closure_unit_return::implicit_unit::{closure#0} (unused)
-Raw bytes (9): 0x[01, 01, 00, 01, 00, 10, 16, 02, 06]
+Raw bytes (9): 0x[01, 01, 00, 01, 00, 11, 16, 02, 06]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Zero) at (prev + 16, 22) to (start + 2, 6)
+- Code(Zero) at (prev + 17, 22) to (start + 2, 6)
 Highest counter ID seen: (none)
 
diff --git a/tests/coverage/closure_unit_return.coverage b/tests/coverage/closure_unit_return.coverage
index 131fab993f0..5e57e0db160 100644
--- a/tests/coverage/closure_unit_return.coverage
+++ b/tests/coverage/closure_unit_return.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |
    LL|       |// Regression test for an inconsistency between functions that return the value
diff --git a/tests/coverage/closure_unit_return.rs b/tests/coverage/closure_unit_return.rs
index 74334f32f6e..d4f139dd363 100644
--- a/tests/coverage/closure_unit_return.rs
+++ b/tests/coverage/closure_unit_return.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 
 // Regression test for an inconsistency between functions that return the value
diff --git a/tests/coverage/condition/conditions.cov-map b/tests/coverage/condition/conditions.cov-map
index d437c91b2b0..417637f2d2e 100644
--- a/tests/coverage/condition/conditions.cov-map
+++ b/tests/coverage/condition/conditions.cov-map
@@ -1,5 +1,5 @@
 Function name: conditions::assign_3_and_or
-Raw bytes (65): 0x[01, 01, 05, 01, 05, 05, 09, 01, 09, 01, 13, 09, 0d, 09, 01, 1b, 01, 00, 2f, 01, 01, 09, 00, 0a, 01, 00, 0d, 00, 0e, 20, 05, 02, 00, 0d, 00, 0e, 05, 00, 12, 00, 13, 20, 09, 06, 00, 12, 00, 13, 0a, 00, 17, 00, 18, 20, 0d, 0e, 00, 17, 00, 18, 01, 01, 05, 01, 02]
+Raw bytes (65): 0x[01, 01, 05, 01, 05, 05, 09, 01, 09, 01, 13, 09, 0d, 09, 01, 1c, 01, 00, 2f, 01, 01, 09, 00, 0a, 01, 00, 0d, 00, 0e, 20, 05, 02, 00, 0d, 00, 0e, 05, 00, 12, 00, 13, 20, 09, 06, 00, 12, 00, 13, 0a, 00, 17, 00, 18, 20, 0d, 0e, 00, 17, 00, 18, 01, 01, 05, 01, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 5
@@ -9,7 +9,7 @@ Number of expressions: 5
 - expression 3 operands: lhs = Counter(0), rhs = Expression(4, Add)
 - expression 4 operands: lhs = Counter(2), rhs = Counter(3)
 Number of file 0 mappings: 9
-- Code(Counter(0)) at (prev + 27, 1) to (start + 0, 47)
+- Code(Counter(0)) at (prev + 28, 1) to (start + 0, 47)
 - Code(Counter(0)) at (prev + 1, 9) to (start + 0, 10)
 - Code(Counter(0)) at (prev + 0, 13) to (start + 0, 14)
 - Branch { true: Counter(1), false: Expression(0, Sub) } at (prev + 0, 13) to (start + 0, 14)
@@ -28,7 +28,7 @@ Number of file 0 mappings: 9
 Highest counter ID seen: c3
 
 Function name: conditions::assign_3_or_and
-Raw bytes (63): 0x[01, 01, 04, 01, 05, 01, 0b, 05, 09, 09, 0d, 09, 01, 16, 01, 00, 2f, 01, 01, 09, 00, 0a, 01, 00, 0d, 00, 0e, 20, 05, 02, 00, 0d, 00, 0e, 02, 00, 12, 00, 13, 20, 09, 06, 00, 12, 00, 13, 09, 00, 17, 00, 18, 20, 0d, 0e, 00, 17, 00, 18, 01, 01, 05, 01, 02]
+Raw bytes (63): 0x[01, 01, 04, 01, 05, 01, 0b, 05, 09, 09, 0d, 09, 01, 17, 01, 00, 2f, 01, 01, 09, 00, 0a, 01, 00, 0d, 00, 0e, 20, 05, 02, 00, 0d, 00, 0e, 02, 00, 12, 00, 13, 20, 09, 06, 00, 12, 00, 13, 09, 00, 17, 00, 18, 20, 0d, 0e, 00, 17, 00, 18, 01, 01, 05, 01, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 4
@@ -37,7 +37,7 @@ Number of expressions: 4
 - expression 2 operands: lhs = Counter(1), rhs = Counter(2)
 - expression 3 operands: lhs = Counter(2), rhs = Counter(3)
 Number of file 0 mappings: 9
-- Code(Counter(0)) at (prev + 22, 1) to (start + 0, 47)
+- Code(Counter(0)) at (prev + 23, 1) to (start + 0, 47)
 - Code(Counter(0)) at (prev + 1, 9) to (start + 0, 10)
 - Code(Counter(0)) at (prev + 0, 13) to (start + 0, 14)
 - Branch { true: Counter(1), false: Expression(0, Sub) } at (prev + 0, 13) to (start + 0, 14)
@@ -56,14 +56,14 @@ Number of file 0 mappings: 9
 Highest counter ID seen: c3
 
 Function name: conditions::assign_and
-Raw bytes (47): 0x[01, 01, 02, 01, 05, 05, 09, 07, 01, 0c, 01, 00, 21, 01, 01, 09, 00, 0a, 01, 00, 0d, 00, 0e, 20, 05, 02, 00, 0d, 00, 0e, 05, 00, 12, 00, 13, 20, 09, 06, 00, 12, 00, 13, 01, 01, 05, 01, 02]
+Raw bytes (47): 0x[01, 01, 02, 01, 05, 05, 09, 07, 01, 0d, 01, 00, 21, 01, 01, 09, 00, 0a, 01, 00, 0d, 00, 0e, 20, 05, 02, 00, 0d, 00, 0e, 05, 00, 12, 00, 13, 20, 09, 06, 00, 12, 00, 13, 01, 01, 05, 01, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 2
 - expression 0 operands: lhs = Counter(0), rhs = Counter(1)
 - expression 1 operands: lhs = Counter(1), rhs = Counter(2)
 Number of file 0 mappings: 7
-- Code(Counter(0)) at (prev + 12, 1) to (start + 0, 33)
+- Code(Counter(0)) at (prev + 13, 1) to (start + 0, 33)
 - Code(Counter(0)) at (prev + 1, 9) to (start + 0, 10)
 - Code(Counter(0)) at (prev + 0, 13) to (start + 0, 14)
 - Branch { true: Counter(1), false: Expression(0, Sub) } at (prev + 0, 13) to (start + 0, 14)
@@ -77,7 +77,7 @@ Number of file 0 mappings: 7
 Highest counter ID seen: c2
 
 Function name: conditions::assign_or
-Raw bytes (49): 0x[01, 01, 03, 01, 05, 01, 0b, 05, 09, 07, 01, 11, 01, 00, 20, 01, 01, 09, 00, 0a, 01, 00, 0d, 00, 0e, 20, 05, 02, 00, 0d, 00, 0e, 02, 00, 12, 00, 13, 20, 09, 06, 00, 12, 00, 13, 01, 01, 05, 01, 02]
+Raw bytes (49): 0x[01, 01, 03, 01, 05, 01, 0b, 05, 09, 07, 01, 12, 01, 00, 20, 01, 01, 09, 00, 0a, 01, 00, 0d, 00, 0e, 20, 05, 02, 00, 0d, 00, 0e, 02, 00, 12, 00, 13, 20, 09, 06, 00, 12, 00, 13, 01, 01, 05, 01, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 3
@@ -85,7 +85,7 @@ Number of expressions: 3
 - expression 1 operands: lhs = Counter(0), rhs = Expression(2, Add)
 - expression 2 operands: lhs = Counter(1), rhs = Counter(2)
 Number of file 0 mappings: 7
-- Code(Counter(0)) at (prev + 17, 1) to (start + 0, 32)
+- Code(Counter(0)) at (prev + 18, 1) to (start + 0, 32)
 - Code(Counter(0)) at (prev + 1, 9) to (start + 0, 10)
 - Code(Counter(0)) at (prev + 0, 13) to (start + 0, 14)
 - Branch { true: Counter(1), false: Expression(0, Sub) } at (prev + 0, 13) to (start + 0, 14)
@@ -100,23 +100,23 @@ Number of file 0 mappings: 7
 Highest counter ID seen: c2
 
 Function name: conditions::foo
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 20, 01, 02, 02]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 21, 01, 02, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 32, 1) to (start + 2, 2)
+- Code(Counter(0)) at (prev + 33, 1) to (start + 2, 2)
 Highest counter ID seen: c0
 
 Function name: conditions::func_call
-Raw bytes (37): 0x[01, 01, 02, 01, 05, 05, 09, 05, 01, 24, 01, 01, 0a, 20, 05, 02, 01, 09, 00, 0a, 05, 00, 0e, 00, 0f, 20, 09, 06, 00, 0e, 00, 0f, 01, 01, 01, 00, 02]
+Raw bytes (37): 0x[01, 01, 02, 01, 05, 05, 09, 05, 01, 25, 01, 01, 0a, 20, 05, 02, 01, 09, 00, 0a, 05, 00, 0e, 00, 0f, 20, 09, 06, 00, 0e, 00, 0f, 01, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 2
 - expression 0 operands: lhs = Counter(0), rhs = Counter(1)
 - expression 1 operands: lhs = Counter(1), rhs = Counter(2)
 Number of file 0 mappings: 5
-- Code(Counter(0)) at (prev + 36, 1) to (start + 1, 10)
+- Code(Counter(0)) at (prev + 37, 1) to (start + 1, 10)
 - Branch { true: Counter(1), false: Expression(0, Sub) } at (prev + 1, 9) to (start + 0, 10)
     true  = c1
     false = (c0 - c1)
@@ -128,11 +128,11 @@ Number of file 0 mappings: 5
 Highest counter ID seen: c2
 
 Function name: conditions::simple_assign
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 07, 01, 03, 02]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 08, 01, 03, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 7, 1) to (start + 3, 2)
+- Code(Counter(0)) at (prev + 8, 1) to (start + 3, 2)
 Highest counter ID seen: c0
 
diff --git a/tests/coverage/condition/conditions.coverage b/tests/coverage/condition/conditions.coverage
index 117e9aabb5b..3215b391d62 100644
--- a/tests/coverage/condition/conditions.coverage
+++ b/tests/coverage/condition/conditions.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |//@ compile-flags: -Zcoverage-options=condition
    LL|       |//@ llvm-cov-flags: --show-branches=count
diff --git a/tests/coverage/condition/conditions.rs b/tests/coverage/condition/conditions.rs
index 63fa962ce5f..3d658dc93e0 100644
--- a/tests/coverage/condition/conditions.rs
+++ b/tests/coverage/condition/conditions.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 //@ compile-flags: -Zcoverage-options=condition
 //@ llvm-cov-flags: --show-branches=count
diff --git a/tests/coverage/coverage_attr_closure.coverage b/tests/coverage/coverage_attr_closure.coverage
index 31898786afc..7bdb96bdab8 100644
--- a/tests/coverage/coverage_attr_closure.coverage
+++ b/tests/coverage/coverage_attr_closure.coverage
@@ -1,4 +1,4 @@
-   LL|       |#![feature(stmt_expr_attributes)]
+   LL|       |#![feature(coverage_attribute, stmt_expr_attributes)]
    LL|       |#![allow(dead_code)]
    LL|       |//@ edition: 2021
    LL|       |
diff --git a/tests/coverage/coverage_attr_closure.rs b/tests/coverage/coverage_attr_closure.rs
index c66ccb7f5a5..4341a868ab8 100644
--- a/tests/coverage/coverage_attr_closure.rs
+++ b/tests/coverage/coverage_attr_closure.rs
@@ -1,4 +1,4 @@
-#![feature(stmt_expr_attributes)]
+#![feature(coverage_attribute, stmt_expr_attributes)]
 #![allow(dead_code)]
 //@ edition: 2021
 
diff --git a/tests/coverage/fn_sig_into_try.cov-map b/tests/coverage/fn_sig_into_try.cov-map
index cd8726fe1c3..374811dba9e 100644
--- a/tests/coverage/fn_sig_into_try.cov-map
+++ b/tests/coverage/fn_sig_into_try.cov-map
@@ -1,20 +1,20 @@
 Function name: fn_sig_into_try::a
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 09, 01, 05, 02]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 0a, 01, 05, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 9, 1) to (start + 5, 2)
+- Code(Counter(0)) at (prev + 10, 1) to (start + 5, 2)
 Highest counter ID seen: c0
 
 Function name: fn_sig_into_try::b
-Raw bytes (26): 0x[01, 01, 01, 01, 00, 04, 01, 10, 01, 03, 0f, 00, 03, 0f, 00, 10, 02, 01, 05, 00, 0c, 01, 01, 01, 00, 02]
+Raw bytes (26): 0x[01, 01, 01, 01, 00, 04, 01, 11, 01, 03, 0f, 00, 03, 0f, 00, 10, 02, 01, 05, 00, 0c, 01, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
 - expression 0 operands: lhs = Counter(0), rhs = Zero
 Number of file 0 mappings: 4
-- Code(Counter(0)) at (prev + 16, 1) to (start + 3, 15)
+- Code(Counter(0)) at (prev + 17, 1) to (start + 3, 15)
 - Code(Zero) at (prev + 3, 15) to (start + 0, 16)
 - Code(Expression(0, Sub)) at (prev + 1, 5) to (start + 0, 12)
     = (c0 - Zero)
@@ -22,13 +22,13 @@ Number of file 0 mappings: 4
 Highest counter ID seen: c0
 
 Function name: fn_sig_into_try::c
-Raw bytes (26): 0x[01, 01, 01, 01, 00, 04, 01, 17, 01, 03, 17, 00, 03, 17, 00, 18, 02, 01, 05, 00, 0c, 01, 01, 01, 00, 02]
+Raw bytes (26): 0x[01, 01, 01, 01, 00, 04, 01, 18, 01, 03, 17, 00, 03, 17, 00, 18, 02, 01, 05, 00, 0c, 01, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
 - expression 0 operands: lhs = Counter(0), rhs = Zero
 Number of file 0 mappings: 4
-- Code(Counter(0)) at (prev + 23, 1) to (start + 3, 23)
+- Code(Counter(0)) at (prev + 24, 1) to (start + 3, 23)
 - Code(Zero) at (prev + 3, 23) to (start + 0, 24)
 - Code(Expression(0, Sub)) at (prev + 1, 5) to (start + 0, 12)
     = (c0 - Zero)
@@ -36,13 +36,13 @@ Number of file 0 mappings: 4
 Highest counter ID seen: c0
 
 Function name: fn_sig_into_try::d
-Raw bytes (26): 0x[01, 01, 01, 01, 00, 04, 01, 1e, 01, 04, 0f, 00, 04, 0f, 00, 10, 02, 01, 05, 00, 0c, 01, 01, 01, 00, 02]
+Raw bytes (26): 0x[01, 01, 01, 01, 00, 04, 01, 1f, 01, 04, 0f, 00, 04, 0f, 00, 10, 02, 01, 05, 00, 0c, 01, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
 - expression 0 operands: lhs = Counter(0), rhs = Zero
 Number of file 0 mappings: 4
-- Code(Counter(0)) at (prev + 30, 1) to (start + 4, 15)
+- Code(Counter(0)) at (prev + 31, 1) to (start + 4, 15)
 - Code(Zero) at (prev + 4, 15) to (start + 0, 16)
 - Code(Expression(0, Sub)) at (prev + 1, 5) to (start + 0, 12)
     = (c0 - Zero)
diff --git a/tests/coverage/fn_sig_into_try.coverage b/tests/coverage/fn_sig_into_try.coverage
index 05b8edf15a4..cabe747ce5a 100644
--- a/tests/coverage/fn_sig_into_try.coverage
+++ b/tests/coverage/fn_sig_into_try.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |
    LL|       |// Regression test for inconsistent handling of function signature spans that
diff --git a/tests/coverage/fn_sig_into_try.rs b/tests/coverage/fn_sig_into_try.rs
index fd3e0c3f7c6..cda5e716edf 100644
--- a/tests/coverage/fn_sig_into_try.rs
+++ b/tests/coverage/fn_sig_into_try.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 
 // Regression test for inconsistent handling of function signature spans that
diff --git a/tests/coverage/if_not.cov-map b/tests/coverage/if_not.cov-map
index 6f366796722..f47139ce5a4 100644
--- a/tests/coverage/if_not.cov-map
+++ b/tests/coverage/if_not.cov-map
@@ -1,5 +1,5 @@
 Function name: if_not::if_not
-Raw bytes (60): 0x[01, 01, 03, 01, 05, 01, 09, 01, 0d, 0a, 01, 04, 01, 03, 0d, 02, 04, 05, 02, 06, 05, 02, 05, 00, 06, 01, 03, 09, 01, 0d, 06, 02, 05, 02, 06, 09, 02, 05, 00, 06, 01, 03, 09, 01, 0d, 0a, 02, 05, 02, 06, 0d, 02, 0c, 02, 06, 01, 03, 01, 00, 02]
+Raw bytes (60): 0x[01, 01, 03, 01, 05, 01, 09, 01, 0d, 0a, 01, 05, 01, 03, 0d, 02, 04, 05, 02, 06, 05, 02, 05, 00, 06, 01, 03, 09, 01, 0d, 06, 02, 05, 02, 06, 09, 02, 05, 00, 06, 01, 03, 09, 01, 0d, 0a, 02, 05, 02, 06, 0d, 02, 0c, 02, 06, 01, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 3
@@ -7,7 +7,7 @@ Number of expressions: 3
 - expression 1 operands: lhs = Counter(0), rhs = Counter(2)
 - expression 2 operands: lhs = Counter(0), rhs = Counter(3)
 Number of file 0 mappings: 10
-- Code(Counter(0)) at (prev + 4, 1) to (start + 3, 13)
+- Code(Counter(0)) at (prev + 5, 1) to (start + 3, 13)
 - Code(Expression(0, Sub)) at (prev + 4, 5) to (start + 2, 6)
     = (c0 - c1)
 - Code(Counter(1)) at (prev + 2, 5) to (start + 0, 6)
diff --git a/tests/coverage/if_not.coverage b/tests/coverage/if_not.coverage
index c96627d88ae..678ccf9f2f8 100644
--- a/tests/coverage/if_not.coverage
+++ b/tests/coverage/if_not.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |
    LL|       |#[rustfmt::skip]
diff --git a/tests/coverage/if_not.rs b/tests/coverage/if_not.rs
index d1c2b5fc982..69283ef2527 100644
--- a/tests/coverage/if_not.rs
+++ b/tests/coverage/if_not.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 
 #[rustfmt::skip]
diff --git a/tests/coverage/let_else_loop.cov-map b/tests/coverage/let_else_loop.cov-map
index 5a3ccff87c3..7789114c239 100644
--- a/tests/coverage/let_else_loop.cov-map
+++ b/tests/coverage/let_else_loop.cov-map
@@ -1,32 +1,32 @@
 Function name: let_else_loop::_if (unused)
-Raw bytes (19): 0x[01, 01, 00, 03, 00, 15, 01, 01, 0c, 00, 01, 0f, 00, 16, 00, 00, 20, 00, 27]
+Raw bytes (19): 0x[01, 01, 00, 03, 00, 16, 01, 01, 0c, 00, 01, 0f, 00, 16, 00, 00, 20, 00, 27]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 3
-- Code(Zero) at (prev + 21, 1) to (start + 1, 12)
+- Code(Zero) at (prev + 22, 1) to (start + 1, 12)
 - Code(Zero) at (prev + 1, 15) to (start + 0, 22)
 - Code(Zero) at (prev + 0, 32) to (start + 0, 39)
 Highest counter ID seen: (none)
 
 Function name: let_else_loop::_loop_either_way (unused)
-Raw bytes (19): 0x[01, 01, 00, 03, 00, 0e, 01, 01, 14, 00, 01, 1c, 00, 23, 00, 01, 05, 00, 0c]
+Raw bytes (19): 0x[01, 01, 00, 03, 00, 0f, 01, 01, 14, 00, 01, 1c, 00, 23, 00, 01, 05, 00, 0c]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 3
-- Code(Zero) at (prev + 14, 1) to (start + 1, 20)
+- Code(Zero) at (prev + 15, 1) to (start + 1, 20)
 - Code(Zero) at (prev + 1, 28) to (start + 0, 35)
 - Code(Zero) at (prev + 1, 5) to (start + 0, 12)
 Highest counter ID seen: (none)
 
 Function name: let_else_loop::loopy
-Raw bytes (19): 0x[01, 01, 00, 03, 01, 08, 01, 01, 14, 09, 01, 1c, 00, 23, 05, 01, 01, 00, 02]
+Raw bytes (19): 0x[01, 01, 00, 03, 01, 09, 01, 01, 14, 09, 01, 1c, 00, 23, 05, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 3
-- Code(Counter(0)) at (prev + 8, 1) to (start + 1, 20)
+- Code(Counter(0)) at (prev + 9, 1) to (start + 1, 20)
 - Code(Counter(2)) at (prev + 1, 28) to (start + 0, 35)
 - Code(Counter(1)) at (prev + 1, 1) to (start + 0, 2)
 Highest counter ID seen: c2
diff --git a/tests/coverage/let_else_loop.coverage b/tests/coverage/let_else_loop.coverage
index b42e1e144ae..bd13f6e5650 100644
--- a/tests/coverage/let_else_loop.coverage
+++ b/tests/coverage/let_else_loop.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |
    LL|       |// Regression test for <https://github.com/rust-lang/rust/issues/122738>.
diff --git a/tests/coverage/let_else_loop.rs b/tests/coverage/let_else_loop.rs
index 83571287859..8217c0d072a 100644
--- a/tests/coverage/let_else_loop.rs
+++ b/tests/coverage/let_else_loop.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 
 // Regression test for <https://github.com/rust-lang/rust/issues/122738>.
diff --git a/tests/coverage/macro_in_closure.cov-map b/tests/coverage/macro_in_closure.cov-map
index 38ce58d9ea5..9614154a366 100644
--- a/tests/coverage/macro_in_closure.cov-map
+++ b/tests/coverage/macro_in_closure.cov-map
@@ -1,18 +1,18 @@
 Function name: macro_in_closure::NO_BLOCK::{closure#0}
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 06, 1c, 00, 2d]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 07, 1c, 00, 2d]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 6, 28) to (start + 0, 45)
+- Code(Counter(0)) at (prev + 7, 28) to (start + 0, 45)
 Highest counter ID seen: c0
 
 Function name: macro_in_closure::WITH_BLOCK::{closure#0}
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 08, 1e, 02, 02]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 09, 1e, 02, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 8, 30) to (start + 2, 2)
+- Code(Counter(0)) at (prev + 9, 30) to (start + 2, 2)
 Highest counter ID seen: c0
 
diff --git a/tests/coverage/macro_in_closure.coverage b/tests/coverage/macro_in_closure.coverage
index c829c512cb8..a23ad2c37ec 100644
--- a/tests/coverage/macro_in_closure.coverage
+++ b/tests/coverage/macro_in_closure.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |
    LL|       |// If a closure body consists entirely of a single bang-macro invocation, the
diff --git a/tests/coverage/macro_in_closure.rs b/tests/coverage/macro_in_closure.rs
index 251fbf04ee3..3d62b54073f 100644
--- a/tests/coverage/macro_in_closure.rs
+++ b/tests/coverage/macro_in_closure.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 
 // If a closure body consists entirely of a single bang-macro invocation, the
diff --git a/tests/coverage/mcdc/condition-limit.cov-map b/tests/coverage/mcdc/condition-limit.cov-map
index befe8866a59..8ff5d6360f6 100644
--- a/tests/coverage/mcdc/condition-limit.cov-map
+++ b/tests/coverage/mcdc/condition-limit.cov-map
@@ -1,5 +1,5 @@
 Function name: condition_limit::accept_7_conditions
-Raw bytes (147): 0x[01, 01, 08, 01, 05, 05, 09, 09, 0d, 0d, 11, 11, 15, 15, 19, 19, 1d, 01, 1d, 12, 01, 06, 01, 02, 09, 28, 08, 07, 02, 08, 00, 27, 30, 05, 02, 01, 07, 00, 00, 08, 00, 09, 05, 00, 0d, 00, 0e, 30, 09, 06, 07, 06, 00, 00, 0d, 00, 0e, 09, 00, 12, 00, 13, 30, 0d, 0a, 06, 05, 00, 00, 12, 00, 13, 0d, 00, 17, 00, 18, 30, 11, 0e, 05, 04, 00, 00, 17, 00, 18, 11, 00, 1c, 00, 1d, 30, 15, 12, 04, 03, 00, 00, 1c, 00, 1d, 15, 00, 21, 00, 22, 30, 19, 16, 03, 02, 00, 00, 21, 00, 22, 19, 00, 26, 00, 27, 30, 1d, 1a, 02, 00, 00, 00, 26, 00, 27, 1d, 00, 28, 02, 06, 1e, 02, 05, 00, 06, 01, 01, 01, 00, 02]
+Raw bytes (147): 0x[01, 01, 08, 01, 05, 05, 09, 09, 0d, 0d, 11, 11, 15, 15, 19, 19, 1d, 01, 1d, 12, 01, 07, 01, 02, 09, 28, 08, 07, 02, 08, 00, 27, 30, 05, 02, 01, 07, 00, 00, 08, 00, 09, 05, 00, 0d, 00, 0e, 30, 09, 06, 07, 06, 00, 00, 0d, 00, 0e, 09, 00, 12, 00, 13, 30, 0d, 0a, 06, 05, 00, 00, 12, 00, 13, 0d, 00, 17, 00, 18, 30, 11, 0e, 05, 04, 00, 00, 17, 00, 18, 11, 00, 1c, 00, 1d, 30, 15, 12, 04, 03, 00, 00, 1c, 00, 1d, 15, 00, 21, 00, 22, 30, 19, 16, 03, 02, 00, 00, 21, 00, 22, 19, 00, 26, 00, 27, 30, 1d, 1a, 02, 00, 00, 00, 26, 00, 27, 1d, 00, 28, 02, 06, 1e, 02, 05, 00, 06, 01, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 8
@@ -12,7 +12,7 @@ Number of expressions: 8
 - expression 6 operands: lhs = Counter(6), rhs = Counter(7)
 - expression 7 operands: lhs = Counter(0), rhs = Counter(7)
 Number of file 0 mappings: 18
-- Code(Counter(0)) at (prev + 6, 1) to (start + 2, 9)
+- Code(Counter(0)) at (prev + 7, 1) to (start + 2, 9)
 - MCDCDecision { bitmap_idx: 8, conditions_num: 7 } at (prev + 2, 8) to (start + 0, 39)
 - MCDCBranch { true: Counter(1), false: Expression(0, Sub), condition_id: 1, true_next_id: 7, false_next_id: 0 } at (prev + 0, 8) to (start + 0, 9)
     true  = c1
diff --git a/tests/coverage/mcdc/condition-limit.coverage b/tests/coverage/mcdc/condition-limit.coverage
index 1a990f27ac2..d11b8a17710 100644
--- a/tests/coverage/mcdc/condition-limit.coverage
+++ b/tests/coverage/mcdc/condition-limit.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |//@ min-llvm-version: 19
    LL|       |//@ compile-flags: -Zcoverage-options=mcdc
diff --git a/tests/coverage/mcdc/condition-limit.rs b/tests/coverage/mcdc/condition-limit.rs
index 520a9f44e08..2e8f1619379 100644
--- a/tests/coverage/mcdc/condition-limit.rs
+++ b/tests/coverage/mcdc/condition-limit.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 //@ min-llvm-version: 19
 //@ compile-flags: -Zcoverage-options=mcdc
diff --git a/tests/coverage/mcdc/if.cov-map b/tests/coverage/mcdc/if.cov-map
index 1b038f48429..771351f649f 100644
--- a/tests/coverage/mcdc/if.cov-map
+++ b/tests/coverage/mcdc/if.cov-map
@@ -1,5 +1,5 @@
 Function name: if::mcdc_check_a
-Raw bytes (62): 0x[01, 01, 03, 01, 05, 05, 09, 01, 09, 08, 01, 0e, 01, 01, 09, 28, 03, 02, 01, 08, 00, 0e, 30, 05, 02, 01, 02, 00, 00, 08, 00, 09, 05, 00, 0d, 00, 0e, 30, 09, 06, 02, 00, 00, 00, 0d, 00, 0e, 09, 00, 0f, 02, 06, 0a, 02, 0c, 02, 06, 01, 03, 01, 00, 02]
+Raw bytes (62): 0x[01, 01, 03, 01, 05, 05, 09, 01, 09, 08, 01, 0f, 01, 01, 09, 28, 03, 02, 01, 08, 00, 0e, 30, 05, 02, 01, 02, 00, 00, 08, 00, 09, 05, 00, 0d, 00, 0e, 30, 09, 06, 02, 00, 00, 00, 0d, 00, 0e, 09, 00, 0f, 02, 06, 0a, 02, 0c, 02, 06, 01, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 3
@@ -7,7 +7,7 @@ Number of expressions: 3
 - expression 1 operands: lhs = Counter(1), rhs = Counter(2)
 - expression 2 operands: lhs = Counter(0), rhs = Counter(2)
 Number of file 0 mappings: 8
-- Code(Counter(0)) at (prev + 14, 1) to (start + 1, 9)
+- Code(Counter(0)) at (prev + 15, 1) to (start + 1, 9)
 - MCDCDecision { bitmap_idx: 3, conditions_num: 2 } at (prev + 1, 8) to (start + 0, 14)
 - MCDCBranch { true: Counter(1), false: Expression(0, Sub), condition_id: 1, true_next_id: 2, false_next_id: 0 } at (prev + 0, 8) to (start + 0, 9)
     true  = c1
@@ -23,7 +23,7 @@ Number of file 0 mappings: 8
 Highest counter ID seen: c2
 
 Function name: if::mcdc_check_b
-Raw bytes (62): 0x[01, 01, 03, 01, 05, 05, 09, 01, 09, 08, 01, 16, 01, 01, 09, 28, 03, 02, 01, 08, 00, 0e, 30, 05, 02, 01, 02, 00, 00, 08, 00, 09, 05, 00, 0d, 00, 0e, 30, 09, 06, 02, 00, 00, 00, 0d, 00, 0e, 09, 00, 0f, 02, 06, 0a, 02, 0c, 02, 06, 01, 03, 01, 00, 02]
+Raw bytes (62): 0x[01, 01, 03, 01, 05, 05, 09, 01, 09, 08, 01, 17, 01, 01, 09, 28, 03, 02, 01, 08, 00, 0e, 30, 05, 02, 01, 02, 00, 00, 08, 00, 09, 05, 00, 0d, 00, 0e, 30, 09, 06, 02, 00, 00, 00, 0d, 00, 0e, 09, 00, 0f, 02, 06, 0a, 02, 0c, 02, 06, 01, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 3
@@ -31,7 +31,7 @@ Number of expressions: 3
 - expression 1 operands: lhs = Counter(1), rhs = Counter(2)
 - expression 2 operands: lhs = Counter(0), rhs = Counter(2)
 Number of file 0 mappings: 8
-- Code(Counter(0)) at (prev + 22, 1) to (start + 1, 9)
+- Code(Counter(0)) at (prev + 23, 1) to (start + 1, 9)
 - MCDCDecision { bitmap_idx: 3, conditions_num: 2 } at (prev + 1, 8) to (start + 0, 14)
 - MCDCBranch { true: Counter(1), false: Expression(0, Sub), condition_id: 1, true_next_id: 2, false_next_id: 0 } at (prev + 0, 8) to (start + 0, 9)
     true  = c1
@@ -47,7 +47,7 @@ Number of file 0 mappings: 8
 Highest counter ID seen: c2
 
 Function name: if::mcdc_check_both
-Raw bytes (62): 0x[01, 01, 03, 01, 05, 05, 09, 01, 09, 08, 01, 1e, 01, 01, 09, 28, 03, 02, 01, 08, 00, 0e, 30, 05, 02, 01, 02, 00, 00, 08, 00, 09, 05, 00, 0d, 00, 0e, 30, 09, 06, 02, 00, 00, 00, 0d, 00, 0e, 09, 00, 0f, 02, 06, 0a, 02, 0c, 02, 06, 01, 03, 01, 00, 02]
+Raw bytes (62): 0x[01, 01, 03, 01, 05, 05, 09, 01, 09, 08, 01, 1f, 01, 01, 09, 28, 03, 02, 01, 08, 00, 0e, 30, 05, 02, 01, 02, 00, 00, 08, 00, 09, 05, 00, 0d, 00, 0e, 30, 09, 06, 02, 00, 00, 00, 0d, 00, 0e, 09, 00, 0f, 02, 06, 0a, 02, 0c, 02, 06, 01, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 3
@@ -55,7 +55,7 @@ Number of expressions: 3
 - expression 1 operands: lhs = Counter(1), rhs = Counter(2)
 - expression 2 operands: lhs = Counter(0), rhs = Counter(2)
 Number of file 0 mappings: 8
-- Code(Counter(0)) at (prev + 30, 1) to (start + 1, 9)
+- Code(Counter(0)) at (prev + 31, 1) to (start + 1, 9)
 - MCDCDecision { bitmap_idx: 3, conditions_num: 2 } at (prev + 1, 8) to (start + 0, 14)
 - MCDCBranch { true: Counter(1), false: Expression(0, Sub), condition_id: 1, true_next_id: 2, false_next_id: 0 } at (prev + 0, 8) to (start + 0, 9)
     true  = c1
@@ -71,7 +71,7 @@ Number of file 0 mappings: 8
 Highest counter ID seen: c2
 
 Function name: if::mcdc_check_neither
-Raw bytes (62): 0x[01, 01, 03, 01, 05, 05, 09, 01, 09, 08, 01, 06, 01, 01, 09, 28, 03, 02, 01, 08, 00, 0e, 30, 05, 02, 01, 02, 00, 00, 08, 00, 09, 05, 00, 0d, 00, 0e, 30, 09, 06, 02, 00, 00, 00, 0d, 00, 0e, 09, 00, 0f, 02, 06, 0a, 02, 0c, 02, 06, 01, 03, 01, 00, 02]
+Raw bytes (62): 0x[01, 01, 03, 01, 05, 05, 09, 01, 09, 08, 01, 07, 01, 01, 09, 28, 03, 02, 01, 08, 00, 0e, 30, 05, 02, 01, 02, 00, 00, 08, 00, 09, 05, 00, 0d, 00, 0e, 30, 09, 06, 02, 00, 00, 00, 0d, 00, 0e, 09, 00, 0f, 02, 06, 0a, 02, 0c, 02, 06, 01, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 3
@@ -79,7 +79,7 @@ Number of expressions: 3
 - expression 1 operands: lhs = Counter(1), rhs = Counter(2)
 - expression 2 operands: lhs = Counter(0), rhs = Counter(2)
 Number of file 0 mappings: 8
-- Code(Counter(0)) at (prev + 6, 1) to (start + 1, 9)
+- Code(Counter(0)) at (prev + 7, 1) to (start + 1, 9)
 - MCDCDecision { bitmap_idx: 3, conditions_num: 2 } at (prev + 1, 8) to (start + 0, 14)
 - MCDCBranch { true: Counter(1), false: Expression(0, Sub), condition_id: 1, true_next_id: 2, false_next_id: 0 } at (prev + 0, 8) to (start + 0, 9)
     true  = c1
@@ -95,7 +95,7 @@ Number of file 0 mappings: 8
 Highest counter ID seen: c2
 
 Function name: if::mcdc_check_not_tree_decision
-Raw bytes (85): 0x[01, 01, 07, 01, 05, 01, 17, 05, 09, 05, 09, 17, 0d, 05, 09, 01, 0d, 0a, 01, 30, 01, 03, 0a, 28, 05, 03, 03, 08, 00, 15, 30, 05, 02, 01, 02, 03, 00, 09, 00, 0a, 02, 00, 0e, 00, 0f, 30, 09, 06, 03, 02, 00, 00, 0e, 00, 0f, 17, 00, 14, 00, 15, 30, 0d, 12, 02, 00, 00, 00, 14, 00, 15, 0d, 00, 16, 02, 06, 1a, 02, 0c, 02, 06, 01, 03, 01, 00, 02]
+Raw bytes (85): 0x[01, 01, 07, 01, 05, 01, 17, 05, 09, 05, 09, 17, 0d, 05, 09, 01, 0d, 0a, 01, 31, 01, 03, 0a, 28, 05, 03, 03, 08, 00, 15, 30, 05, 02, 01, 02, 03, 00, 09, 00, 0a, 02, 00, 0e, 00, 0f, 30, 09, 06, 03, 02, 00, 00, 0e, 00, 0f, 17, 00, 14, 00, 15, 30, 0d, 12, 02, 00, 00, 00, 14, 00, 15, 0d, 00, 16, 02, 06, 1a, 02, 0c, 02, 06, 01, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 7
@@ -107,7 +107,7 @@ Number of expressions: 7
 - expression 5 operands: lhs = Counter(1), rhs = Counter(2)
 - expression 6 operands: lhs = Counter(0), rhs = Counter(3)
 Number of file 0 mappings: 10
-- Code(Counter(0)) at (prev + 48, 1) to (start + 3, 10)
+- Code(Counter(0)) at (prev + 49, 1) to (start + 3, 10)
 - MCDCDecision { bitmap_idx: 5, conditions_num: 3 } at (prev + 3, 8) to (start + 0, 21)
 - MCDCBranch { true: Counter(1), false: Expression(0, Sub), condition_id: 1, true_next_id: 2, false_next_id: 3 } at (prev + 0, 9) to (start + 0, 10)
     true  = c1
@@ -129,7 +129,7 @@ Number of file 0 mappings: 10
 Highest counter ID seen: c3
 
 Function name: if::mcdc_check_tree_decision
-Raw bytes (87): 0x[01, 01, 08, 01, 05, 05, 09, 05, 09, 05, 1f, 09, 0d, 09, 0d, 01, 1f, 09, 0d, 0a, 01, 26, 01, 03, 09, 28, 04, 03, 03, 08, 00, 15, 30, 05, 02, 01, 02, 00, 00, 08, 00, 09, 05, 00, 0e, 00, 0f, 30, 09, 0a, 02, 00, 03, 00, 0e, 00, 0f, 0a, 00, 13, 00, 14, 30, 0d, 0e, 03, 00, 00, 00, 13, 00, 14, 1f, 00, 16, 02, 06, 1a, 02, 0c, 02, 06, 01, 03, 01, 00, 02]
+Raw bytes (87): 0x[01, 01, 08, 01, 05, 05, 09, 05, 09, 05, 1f, 09, 0d, 09, 0d, 01, 1f, 09, 0d, 0a, 01, 27, 01, 03, 09, 28, 04, 03, 03, 08, 00, 15, 30, 05, 02, 01, 02, 00, 00, 08, 00, 09, 05, 00, 0e, 00, 0f, 30, 09, 0a, 02, 00, 03, 00, 0e, 00, 0f, 0a, 00, 13, 00, 14, 30, 0d, 0e, 03, 00, 00, 00, 13, 00, 14, 1f, 00, 16, 02, 06, 1a, 02, 0c, 02, 06, 01, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 8
@@ -142,7 +142,7 @@ Number of expressions: 8
 - expression 6 operands: lhs = Counter(0), rhs = Expression(7, Add)
 - expression 7 operands: lhs = Counter(2), rhs = Counter(3)
 Number of file 0 mappings: 10
-- Code(Counter(0)) at (prev + 38, 1) to (start + 3, 9)
+- Code(Counter(0)) at (prev + 39, 1) to (start + 3, 9)
 - MCDCDecision { bitmap_idx: 4, conditions_num: 3 } at (prev + 3, 8) to (start + 0, 21)
 - MCDCBranch { true: Counter(1), false: Expression(0, Sub), condition_id: 1, true_next_id: 2, false_next_id: 0 } at (prev + 0, 8) to (start + 0, 9)
     true  = c1
@@ -164,7 +164,7 @@ Number of file 0 mappings: 10
 Highest counter ID seen: c3
 
 Function name: if::mcdc_nested_if
-Raw bytes (120): 0x[01, 01, 0b, 01, 05, 01, 2b, 05, 09, 05, 09, 2b, 0d, 05, 09, 0d, 11, 2b, 11, 05, 09, 01, 2b, 05, 09, 0e, 01, 3a, 01, 01, 09, 28, 03, 02, 01, 08, 00, 0e, 30, 05, 02, 01, 00, 02, 00, 08, 00, 09, 02, 00, 0d, 00, 0e, 30, 09, 26, 02, 00, 00, 00, 0d, 00, 0e, 2b, 01, 09, 01, 0d, 28, 06, 02, 01, 0c, 00, 12, 30, 0d, 12, 01, 02, 00, 00, 0c, 00, 0d, 0d, 00, 11, 00, 12, 30, 11, 1a, 02, 00, 00, 00, 11, 00, 12, 11, 00, 13, 02, 0a, 1e, 02, 09, 00, 0a, 26, 01, 0c, 02, 06, 01, 03, 01, 00, 02]
+Raw bytes (120): 0x[01, 01, 0b, 01, 05, 01, 2b, 05, 09, 05, 09, 2b, 0d, 05, 09, 0d, 11, 2b, 11, 05, 09, 01, 2b, 05, 09, 0e, 01, 3b, 01, 01, 09, 28, 03, 02, 01, 08, 00, 0e, 30, 05, 02, 01, 00, 02, 00, 08, 00, 09, 02, 00, 0d, 00, 0e, 30, 09, 26, 02, 00, 00, 00, 0d, 00, 0e, 2b, 01, 09, 01, 0d, 28, 06, 02, 01, 0c, 00, 12, 30, 0d, 12, 01, 02, 00, 00, 0c, 00, 0d, 0d, 00, 11, 00, 12, 30, 11, 1a, 02, 00, 00, 00, 11, 00, 12, 11, 00, 13, 02, 0a, 1e, 02, 09, 00, 0a, 26, 01, 0c, 02, 06, 01, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 11
@@ -180,7 +180,7 @@ Number of expressions: 11
 - expression 9 operands: lhs = Counter(0), rhs = Expression(10, Add)
 - expression 10 operands: lhs = Counter(1), rhs = Counter(2)
 Number of file 0 mappings: 14
-- Code(Counter(0)) at (prev + 58, 1) to (start + 1, 9)
+- Code(Counter(0)) at (prev + 59, 1) to (start + 1, 9)
 - MCDCDecision { bitmap_idx: 3, conditions_num: 2 } at (prev + 1, 8) to (start + 0, 14)
 - MCDCBranch { true: Counter(1), false: Expression(0, Sub), condition_id: 1, true_next_id: 0, false_next_id: 2 } at (prev + 0, 8) to (start + 0, 9)
     true  = c1
diff --git a/tests/coverage/mcdc/if.coverage b/tests/coverage/mcdc/if.coverage
index cee74de3c5f..b000c7d5d2f 100644
--- a/tests/coverage/mcdc/if.coverage
+++ b/tests/coverage/mcdc/if.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |//@ min-llvm-version: 19
    LL|       |//@ compile-flags: -Zcoverage-options=mcdc
diff --git a/tests/coverage/mcdc/if.rs b/tests/coverage/mcdc/if.rs
index 895b736d066..a2abb2edf11 100644
--- a/tests/coverage/mcdc/if.rs
+++ b/tests/coverage/mcdc/if.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 //@ min-llvm-version: 19
 //@ compile-flags: -Zcoverage-options=mcdc
diff --git a/tests/coverage/mcdc/inlined_expressions.cov-map b/tests/coverage/mcdc/inlined_expressions.cov-map
index 7d78e572a3b..6a112b66e88 100644
--- a/tests/coverage/mcdc/inlined_expressions.cov-map
+++ b/tests/coverage/mcdc/inlined_expressions.cov-map
@@ -1,12 +1,12 @@
 Function name: inlined_expressions::inlined_instance
-Raw bytes (50): 0x[01, 01, 02, 01, 05, 05, 09, 06, 01, 07, 01, 01, 06, 28, 03, 02, 01, 05, 00, 0b, 30, 05, 02, 01, 02, 00, 00, 05, 00, 06, 05, 00, 0a, 00, 0b, 30, 09, 06, 02, 00, 00, 00, 0a, 00, 0b, 01, 01, 01, 00, 02]
+Raw bytes (50): 0x[01, 01, 02, 01, 05, 05, 09, 06, 01, 08, 01, 01, 06, 28, 03, 02, 01, 05, 00, 0b, 30, 05, 02, 01, 02, 00, 00, 05, 00, 06, 05, 00, 0a, 00, 0b, 30, 09, 06, 02, 00, 00, 00, 0a, 00, 0b, 01, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 2
 - expression 0 operands: lhs = Counter(0), rhs = Counter(1)
 - expression 1 operands: lhs = Counter(1), rhs = Counter(2)
 Number of file 0 mappings: 6
-- Code(Counter(0)) at (prev + 7, 1) to (start + 1, 6)
+- Code(Counter(0)) at (prev + 8, 1) to (start + 1, 6)
 - MCDCDecision { bitmap_idx: 3, conditions_num: 2 } at (prev + 1, 5) to (start + 0, 11)
 - MCDCBranch { true: Counter(1), false: Expression(0, Sub), condition_id: 1, true_next_id: 2, false_next_id: 0 } at (prev + 0, 5) to (start + 0, 6)
     true  = c1
diff --git a/tests/coverage/mcdc/inlined_expressions.coverage b/tests/coverage/mcdc/inlined_expressions.coverage
index 12bf55d6460..57c655a2054 100644
--- a/tests/coverage/mcdc/inlined_expressions.coverage
+++ b/tests/coverage/mcdc/inlined_expressions.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |//@ min-llvm-version: 19
    LL|       |//@ compile-flags: -Zcoverage-options=mcdc -Copt-level=z -Cllvm-args=--inline-threshold=0
diff --git a/tests/coverage/mcdc/inlined_expressions.rs b/tests/coverage/mcdc/inlined_expressions.rs
index dbab0b8a662..651e2fe8438 100644
--- a/tests/coverage/mcdc/inlined_expressions.rs
+++ b/tests/coverage/mcdc/inlined_expressions.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 //@ min-llvm-version: 19
 //@ compile-flags: -Zcoverage-options=mcdc -Copt-level=z -Cllvm-args=--inline-threshold=0
diff --git a/tests/coverage/mcdc/nested_if.cov-map b/tests/coverage/mcdc/nested_if.cov-map
index 59564404481..72c7d68840d 100644
--- a/tests/coverage/mcdc/nested_if.cov-map
+++ b/tests/coverage/mcdc/nested_if.cov-map
@@ -1,5 +1,5 @@
 Function name: nested_if::doubly_nested_if_in_condition
-Raw bytes (168): 0x[01, 01, 0e, 01, 05, 05, 09, 05, 09, 05, 13, 09, 19, 19, 1d, 05, 1f, 09, 1d, 09, 0d, 2b, 05, 01, 15, 33, 05, 37, 15, 01, 11, 14, 01, 0e, 01, 01, 09, 28, 09, 02, 01, 08, 00, 4e, 30, 05, 02, 01, 02, 00, 00, 08, 00, 09, 30, 11, 15, 02, 00, 00, 00, 0d, 00, 4e, 05, 00, 10, 00, 11, 28, 06, 02, 00, 10, 00, 36, 30, 09, 0a, 01, 00, 02, 00, 10, 00, 11, 30, 0d, 21, 02, 00, 00, 00, 15, 00, 36, 0a, 00, 18, 00, 19, 28, 03, 02, 00, 18, 00, 1e, 30, 19, 0e, 01, 02, 00, 00, 18, 00, 19, 19, 00, 1d, 00, 1e, 30, 1d, 16, 02, 00, 00, 00, 1d, 00, 1e, 1d, 00, 21, 00, 25, 1a, 00, 2f, 00, 34, 23, 00, 39, 00, 3e, 21, 00, 48, 00, 4c, 11, 00, 4f, 02, 06, 26, 02, 0c, 02, 06, 2e, 03, 01, 00, 02]
+Raw bytes (168): 0x[01, 01, 0e, 01, 05, 05, 09, 05, 09, 05, 13, 09, 19, 19, 1d, 05, 1f, 09, 1d, 09, 0d, 2b, 05, 01, 15, 33, 05, 37, 15, 01, 11, 14, 01, 0f, 01, 01, 09, 28, 09, 02, 01, 08, 00, 4e, 30, 05, 02, 01, 02, 00, 00, 08, 00, 09, 30, 11, 15, 02, 00, 00, 00, 0d, 00, 4e, 05, 00, 10, 00, 11, 28, 06, 02, 00, 10, 00, 36, 30, 09, 0a, 01, 00, 02, 00, 10, 00, 11, 30, 0d, 21, 02, 00, 00, 00, 15, 00, 36, 0a, 00, 18, 00, 19, 28, 03, 02, 00, 18, 00, 1e, 30, 19, 0e, 01, 02, 00, 00, 18, 00, 19, 19, 00, 1d, 00, 1e, 30, 1d, 16, 02, 00, 00, 00, 1d, 00, 1e, 1d, 00, 21, 00, 25, 1a, 00, 2f, 00, 34, 23, 00, 39, 00, 3e, 21, 00, 48, 00, 4c, 11, 00, 4f, 02, 06, 26, 02, 0c, 02, 06, 2e, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 14
@@ -18,7 +18,7 @@ Number of expressions: 14
 - expression 12 operands: lhs = Expression(13, Add), rhs = Counter(5)
 - expression 13 operands: lhs = Counter(0), rhs = Counter(4)
 Number of file 0 mappings: 20
-- Code(Counter(0)) at (prev + 14, 1) to (start + 1, 9)
+- Code(Counter(0)) at (prev + 15, 1) to (start + 1, 9)
 - MCDCDecision { bitmap_idx: 9, conditions_num: 2 } at (prev + 1, 8) to (start + 0, 78)
 - MCDCBranch { true: Counter(1), false: Expression(0, Sub), condition_id: 1, true_next_id: 2, false_next_id: 0 } at (prev + 0, 8) to (start + 0, 9)
     true  = c1
@@ -58,7 +58,7 @@ Number of file 0 mappings: 20
 Highest counter ID seen: c8
 
 Function name: nested_if::nested_if_in_condition
-Raw bytes (124): 0x[01, 01, 0d, 01, 05, 05, 09, 05, 09, 05, 1f, 09, 0d, 09, 0d, 05, 1f, 09, 0d, 27, 05, 01, 15, 2f, 05, 33, 15, 01, 11, 0e, 01, 06, 01, 01, 09, 28, 06, 02, 01, 08, 00, 2e, 30, 05, 02, 01, 02, 00, 00, 08, 00, 09, 30, 11, 15, 02, 00, 00, 00, 0d, 00, 2e, 05, 00, 10, 00, 11, 28, 03, 02, 00, 10, 00, 16, 30, 09, 0a, 01, 00, 02, 00, 10, 00, 11, 0a, 00, 15, 00, 16, 30, 0d, 1a, 02, 00, 00, 00, 15, 00, 16, 1f, 00, 19, 00, 1d, 1a, 00, 27, 00, 2c, 11, 00, 2f, 02, 06, 22, 02, 0c, 02, 06, 2a, 03, 01, 00, 02]
+Raw bytes (124): 0x[01, 01, 0d, 01, 05, 05, 09, 05, 09, 05, 1f, 09, 0d, 09, 0d, 05, 1f, 09, 0d, 27, 05, 01, 15, 2f, 05, 33, 15, 01, 11, 0e, 01, 07, 01, 01, 09, 28, 06, 02, 01, 08, 00, 2e, 30, 05, 02, 01, 02, 00, 00, 08, 00, 09, 30, 11, 15, 02, 00, 00, 00, 0d, 00, 2e, 05, 00, 10, 00, 11, 28, 03, 02, 00, 10, 00, 16, 30, 09, 0a, 01, 00, 02, 00, 10, 00, 11, 0a, 00, 15, 00, 16, 30, 0d, 1a, 02, 00, 00, 00, 15, 00, 16, 1f, 00, 19, 00, 1d, 1a, 00, 27, 00, 2c, 11, 00, 2f, 02, 06, 22, 02, 0c, 02, 06, 2a, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 13
@@ -76,7 +76,7 @@ Number of expressions: 13
 - expression 11 operands: lhs = Expression(12, Add), rhs = Counter(5)
 - expression 12 operands: lhs = Counter(0), rhs = Counter(4)
 Number of file 0 mappings: 14
-- Code(Counter(0)) at (prev + 6, 1) to (start + 1, 9)
+- Code(Counter(0)) at (prev + 7, 1) to (start + 1, 9)
 - MCDCDecision { bitmap_idx: 6, conditions_num: 2 } at (prev + 1, 8) to (start + 0, 46)
 - MCDCBranch { true: Counter(1), false: Expression(0, Sub), condition_id: 1, true_next_id: 2, false_next_id: 0 } at (prev + 0, 8) to (start + 0, 9)
     true  = c1
@@ -106,7 +106,7 @@ Number of file 0 mappings: 14
 Highest counter ID seen: c5
 
 Function name: nested_if::nested_in_then_block_in_condition
-Raw bytes (176): 0x[01, 01, 12, 01, 05, 05, 09, 05, 09, 05, 33, 09, 0d, 09, 0d, 33, 11, 09, 0d, 11, 15, 33, 15, 09, 0d, 05, 33, 09, 0d, 3b, 05, 01, 1d, 43, 05, 47, 1d, 01, 19, 14, 01, 21, 01, 01, 09, 28, 09, 02, 01, 08, 00, 4b, 30, 05, 02, 01, 02, 00, 00, 08, 00, 09, 30, 19, 1d, 02, 00, 00, 00, 0d, 00, 4b, 05, 00, 10, 00, 11, 28, 03, 02, 00, 10, 00, 16, 30, 09, 0a, 01, 00, 02, 00, 10, 00, 11, 0a, 00, 15, 00, 16, 30, 0d, 2e, 02, 00, 00, 00, 15, 00, 16, 33, 00, 1c, 00, 1d, 28, 06, 02, 00, 1c, 00, 22, 30, 11, 1a, 01, 02, 00, 00, 1c, 00, 1d, 11, 00, 21, 00, 22, 30, 15, 22, 02, 00, 00, 00, 21, 00, 22, 15, 00, 25, 00, 29, 26, 00, 33, 00, 38, 2e, 00, 44, 00, 49, 19, 00, 4c, 02, 06, 36, 02, 0c, 02, 06, 3e, 03, 01, 00, 02]
+Raw bytes (176): 0x[01, 01, 12, 01, 05, 05, 09, 05, 09, 05, 33, 09, 0d, 09, 0d, 33, 11, 09, 0d, 11, 15, 33, 15, 09, 0d, 05, 33, 09, 0d, 3b, 05, 01, 1d, 43, 05, 47, 1d, 01, 19, 14, 01, 22, 01, 01, 09, 28, 09, 02, 01, 08, 00, 4b, 30, 05, 02, 01, 02, 00, 00, 08, 00, 09, 30, 19, 1d, 02, 00, 00, 00, 0d, 00, 4b, 05, 00, 10, 00, 11, 28, 03, 02, 00, 10, 00, 16, 30, 09, 0a, 01, 00, 02, 00, 10, 00, 11, 0a, 00, 15, 00, 16, 30, 0d, 2e, 02, 00, 00, 00, 15, 00, 16, 33, 00, 1c, 00, 1d, 28, 06, 02, 00, 1c, 00, 22, 30, 11, 1a, 01, 02, 00, 00, 1c, 00, 1d, 11, 00, 21, 00, 22, 30, 15, 22, 02, 00, 00, 00, 21, 00, 22, 15, 00, 25, 00, 29, 26, 00, 33, 00, 38, 2e, 00, 44, 00, 49, 19, 00, 4c, 02, 06, 36, 02, 0c, 02, 06, 3e, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 18
@@ -129,7 +129,7 @@ Number of expressions: 18
 - expression 16 operands: lhs = Expression(17, Add), rhs = Counter(7)
 - expression 17 operands: lhs = Counter(0), rhs = Counter(6)
 Number of file 0 mappings: 20
-- Code(Counter(0)) at (prev + 33, 1) to (start + 1, 9)
+- Code(Counter(0)) at (prev + 34, 1) to (start + 1, 9)
 - MCDCDecision { bitmap_idx: 9, conditions_num: 2 } at (prev + 1, 8) to (start + 0, 75)
 - MCDCBranch { true: Counter(1), false: Expression(0, Sub), condition_id: 1, true_next_id: 2, false_next_id: 0 } at (prev + 0, 8) to (start + 0, 9)
     true  = c1
@@ -170,7 +170,7 @@ Number of file 0 mappings: 20
 Highest counter ID seen: c7
 
 Function name: nested_if::nested_single_condition_decision
-Raw bytes (89): 0x[01, 01, 08, 01, 05, 05, 09, 05, 09, 13, 05, 01, 11, 1b, 05, 1f, 11, 01, 0d, 0b, 01, 16, 01, 04, 09, 28, 03, 02, 04, 08, 00, 29, 30, 05, 02, 01, 02, 00, 00, 08, 00, 09, 30, 0d, 11, 02, 00, 00, 00, 0d, 00, 29, 05, 00, 10, 00, 11, 20, 09, 0a, 00, 10, 00, 11, 09, 00, 14, 00, 19, 0a, 00, 23, 00, 27, 0d, 00, 2a, 02, 06, 0e, 02, 0c, 02, 06, 16, 03, 01, 00, 02]
+Raw bytes (89): 0x[01, 01, 08, 01, 05, 05, 09, 05, 09, 13, 05, 01, 11, 1b, 05, 1f, 11, 01, 0d, 0b, 01, 17, 01, 04, 09, 28, 03, 02, 04, 08, 00, 29, 30, 05, 02, 01, 02, 00, 00, 08, 00, 09, 30, 0d, 11, 02, 00, 00, 00, 0d, 00, 29, 05, 00, 10, 00, 11, 20, 09, 0a, 00, 10, 00, 11, 09, 00, 14, 00, 19, 0a, 00, 23, 00, 27, 0d, 00, 2a, 02, 06, 0e, 02, 0c, 02, 06, 16, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 8
@@ -183,7 +183,7 @@ Number of expressions: 8
 - expression 6 operands: lhs = Expression(7, Add), rhs = Counter(4)
 - expression 7 operands: lhs = Counter(0), rhs = Counter(3)
 Number of file 0 mappings: 11
-- Code(Counter(0)) at (prev + 22, 1) to (start + 4, 9)
+- Code(Counter(0)) at (prev + 23, 1) to (start + 4, 9)
 - MCDCDecision { bitmap_idx: 3, conditions_num: 2 } at (prev + 4, 8) to (start + 0, 41)
 - MCDCBranch { true: Counter(1), false: Expression(0, Sub), condition_id: 1, true_next_id: 2, false_next_id: 0 } at (prev + 0, 8) to (start + 0, 9)
     true  = c1
diff --git a/tests/coverage/mcdc/nested_if.coverage b/tests/coverage/mcdc/nested_if.coverage
index 4c872708a6e..ca0cb54d581 100644
--- a/tests/coverage/mcdc/nested_if.coverage
+++ b/tests/coverage/mcdc/nested_if.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |//@ min-llvm-version: 19
    LL|       |//@ compile-flags: -Zcoverage-options=mcdc
diff --git a/tests/coverage/mcdc/nested_if.rs b/tests/coverage/mcdc/nested_if.rs
index 3356a768a69..83f188ea47e 100644
--- a/tests/coverage/mcdc/nested_if.rs
+++ b/tests/coverage/mcdc/nested_if.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 //@ min-llvm-version: 19
 //@ compile-flags: -Zcoverage-options=mcdc
diff --git a/tests/coverage/mcdc/non_control_flow.cov-map b/tests/coverage/mcdc/non_control_flow.cov-map
index ee128d997c0..c282d53c5ac 100644
--- a/tests/coverage/mcdc/non_control_flow.cov-map
+++ b/tests/coverage/mcdc/non_control_flow.cov-map
@@ -1,5 +1,5 @@
 Function name: non_control_flow::assign_3
-Raw bytes (79): 0x[01, 01, 04, 01, 05, 01, 0b, 05, 09, 09, 0d, 0a, 01, 15, 01, 00, 28, 01, 01, 09, 00, 0a, 01, 00, 0d, 00, 0e, 28, 04, 03, 00, 0d, 00, 18, 30, 05, 02, 01, 00, 02, 00, 0d, 00, 0e, 02, 00, 12, 00, 13, 30, 09, 06, 02, 03, 00, 00, 12, 00, 13, 09, 00, 17, 00, 18, 30, 0d, 0e, 03, 00, 00, 00, 17, 00, 18, 01, 01, 05, 01, 02]
+Raw bytes (79): 0x[01, 01, 04, 01, 05, 01, 0b, 05, 09, 09, 0d, 0a, 01, 16, 01, 00, 28, 01, 01, 09, 00, 0a, 01, 00, 0d, 00, 0e, 28, 04, 03, 00, 0d, 00, 18, 30, 05, 02, 01, 00, 02, 00, 0d, 00, 0e, 02, 00, 12, 00, 13, 30, 09, 06, 02, 03, 00, 00, 12, 00, 13, 09, 00, 17, 00, 18, 30, 0d, 0e, 03, 00, 00, 00, 17, 00, 18, 01, 01, 05, 01, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 4
@@ -8,7 +8,7 @@ Number of expressions: 4
 - expression 2 operands: lhs = Counter(1), rhs = Counter(2)
 - expression 3 operands: lhs = Counter(2), rhs = Counter(3)
 Number of file 0 mappings: 10
-- Code(Counter(0)) at (prev + 21, 1) to (start + 0, 40)
+- Code(Counter(0)) at (prev + 22, 1) to (start + 0, 40)
 - Code(Counter(0)) at (prev + 1, 9) to (start + 0, 10)
 - Code(Counter(0)) at (prev + 0, 13) to (start + 0, 14)
 - MCDCDecision { bitmap_idx: 4, conditions_num: 3 } at (prev + 0, 13) to (start + 0, 24)
@@ -28,7 +28,7 @@ Number of file 0 mappings: 10
 Highest counter ID seen: c3
 
 Function name: non_control_flow::assign_3_bis
-Raw bytes (81): 0x[01, 01, 05, 01, 05, 05, 09, 01, 09, 01, 13, 09, 0d, 0a, 01, 1a, 01, 00, 2c, 01, 01, 09, 00, 0a, 01, 00, 0d, 00, 0e, 28, 05, 03, 00, 0d, 00, 18, 30, 05, 02, 01, 03, 02, 00, 0d, 00, 0e, 05, 00, 12, 00, 13, 30, 09, 06, 03, 00, 02, 00, 12, 00, 13, 0a, 00, 17, 00, 18, 30, 0d, 0e, 02, 00, 00, 00, 17, 00, 18, 01, 01, 05, 01, 02]
+Raw bytes (81): 0x[01, 01, 05, 01, 05, 05, 09, 01, 09, 01, 13, 09, 0d, 0a, 01, 1b, 01, 00, 2c, 01, 01, 09, 00, 0a, 01, 00, 0d, 00, 0e, 28, 05, 03, 00, 0d, 00, 18, 30, 05, 02, 01, 03, 02, 00, 0d, 00, 0e, 05, 00, 12, 00, 13, 30, 09, 06, 03, 00, 02, 00, 12, 00, 13, 0a, 00, 17, 00, 18, 30, 0d, 0e, 02, 00, 00, 00, 17, 00, 18, 01, 01, 05, 01, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 5
@@ -38,7 +38,7 @@ Number of expressions: 5
 - expression 3 operands: lhs = Counter(0), rhs = Expression(4, Add)
 - expression 4 operands: lhs = Counter(2), rhs = Counter(3)
 Number of file 0 mappings: 10
-- Code(Counter(0)) at (prev + 26, 1) to (start + 0, 44)
+- Code(Counter(0)) at (prev + 27, 1) to (start + 0, 44)
 - Code(Counter(0)) at (prev + 1, 9) to (start + 0, 10)
 - Code(Counter(0)) at (prev + 0, 13) to (start + 0, 14)
 - MCDCDecision { bitmap_idx: 5, conditions_num: 3 } at (prev + 0, 13) to (start + 0, 24)
@@ -58,14 +58,14 @@ Number of file 0 mappings: 10
 Highest counter ID seen: c3
 
 Function name: non_control_flow::assign_and
-Raw bytes (60): 0x[01, 01, 02, 01, 05, 05, 09, 08, 01, 0b, 01, 00, 21, 01, 01, 09, 00, 0a, 01, 00, 0d, 00, 0e, 28, 03, 02, 00, 0d, 00, 13, 30, 05, 02, 01, 02, 00, 00, 0d, 00, 0e, 05, 00, 12, 00, 13, 30, 09, 06, 02, 00, 00, 00, 12, 00, 13, 01, 01, 05, 01, 02]
+Raw bytes (60): 0x[01, 01, 02, 01, 05, 05, 09, 08, 01, 0c, 01, 00, 21, 01, 01, 09, 00, 0a, 01, 00, 0d, 00, 0e, 28, 03, 02, 00, 0d, 00, 13, 30, 05, 02, 01, 02, 00, 00, 0d, 00, 0e, 05, 00, 12, 00, 13, 30, 09, 06, 02, 00, 00, 00, 12, 00, 13, 01, 01, 05, 01, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 2
 - expression 0 operands: lhs = Counter(0), rhs = Counter(1)
 - expression 1 operands: lhs = Counter(1), rhs = Counter(2)
 Number of file 0 mappings: 8
-- Code(Counter(0)) at (prev + 11, 1) to (start + 0, 33)
+- Code(Counter(0)) at (prev + 12, 1) to (start + 0, 33)
 - Code(Counter(0)) at (prev + 1, 9) to (start + 0, 10)
 - Code(Counter(0)) at (prev + 0, 13) to (start + 0, 14)
 - MCDCDecision { bitmap_idx: 3, conditions_num: 2 } at (prev + 0, 13) to (start + 0, 19)
@@ -80,7 +80,7 @@ Number of file 0 mappings: 8
 Highest counter ID seen: c2
 
 Function name: non_control_flow::assign_or
-Raw bytes (62): 0x[01, 01, 03, 01, 05, 01, 0b, 05, 09, 08, 01, 10, 01, 00, 20, 01, 01, 09, 00, 0a, 01, 00, 0d, 00, 0e, 28, 03, 02, 00, 0d, 00, 13, 30, 05, 02, 01, 00, 02, 00, 0d, 00, 0e, 02, 00, 12, 00, 13, 30, 09, 06, 02, 00, 00, 00, 12, 00, 13, 01, 01, 05, 01, 02]
+Raw bytes (62): 0x[01, 01, 03, 01, 05, 01, 0b, 05, 09, 08, 01, 11, 01, 00, 20, 01, 01, 09, 00, 0a, 01, 00, 0d, 00, 0e, 28, 03, 02, 00, 0d, 00, 13, 30, 05, 02, 01, 00, 02, 00, 0d, 00, 0e, 02, 00, 12, 00, 13, 30, 09, 06, 02, 00, 00, 00, 12, 00, 13, 01, 01, 05, 01, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 3
@@ -88,7 +88,7 @@ Number of expressions: 3
 - expression 1 operands: lhs = Counter(0), rhs = Expression(2, Add)
 - expression 2 operands: lhs = Counter(1), rhs = Counter(2)
 Number of file 0 mappings: 8
-- Code(Counter(0)) at (prev + 16, 1) to (start + 0, 32)
+- Code(Counter(0)) at (prev + 17, 1) to (start + 0, 32)
 - Code(Counter(0)) at (prev + 1, 9) to (start + 0, 10)
 - Code(Counter(0)) at (prev + 0, 13) to (start + 0, 14)
 - MCDCDecision { bitmap_idx: 3, conditions_num: 2 } at (prev + 0, 13) to (start + 0, 19)
@@ -104,23 +104,23 @@ Number of file 0 mappings: 8
 Highest counter ID seen: c2
 
 Function name: non_control_flow::foo
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 24, 01, 02, 02]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 25, 01, 02, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 36, 1) to (start + 2, 2)
+- Code(Counter(0)) at (prev + 37, 1) to (start + 2, 2)
 Highest counter ID seen: c0
 
 Function name: non_control_flow::func_call
-Raw bytes (50): 0x[01, 01, 02, 01, 05, 05, 09, 06, 01, 28, 01, 01, 0a, 28, 03, 02, 01, 09, 00, 0f, 30, 05, 02, 01, 02, 00, 00, 09, 00, 0a, 05, 00, 0e, 00, 0f, 30, 09, 06, 02, 00, 00, 00, 0e, 00, 0f, 01, 01, 01, 00, 02]
+Raw bytes (50): 0x[01, 01, 02, 01, 05, 05, 09, 06, 01, 29, 01, 01, 0a, 28, 03, 02, 01, 09, 00, 0f, 30, 05, 02, 01, 02, 00, 00, 09, 00, 0a, 05, 00, 0e, 00, 0f, 30, 09, 06, 02, 00, 00, 00, 0e, 00, 0f, 01, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 2
 - expression 0 operands: lhs = Counter(0), rhs = Counter(1)
 - expression 1 operands: lhs = Counter(1), rhs = Counter(2)
 Number of file 0 mappings: 6
-- Code(Counter(0)) at (prev + 40, 1) to (start + 1, 10)
+- Code(Counter(0)) at (prev + 41, 1) to (start + 1, 10)
 - MCDCDecision { bitmap_idx: 3, conditions_num: 2 } at (prev + 1, 9) to (start + 0, 15)
 - MCDCBranch { true: Counter(1), false: Expression(0, Sub), condition_id: 1, true_next_id: 2, false_next_id: 0 } at (prev + 0, 9) to (start + 0, 10)
     true  = c1
@@ -133,7 +133,7 @@ Number of file 0 mappings: 6
 Highest counter ID seen: c2
 
 Function name: non_control_flow::right_comb_tree
-Raw bytes (111): 0x[01, 01, 05, 01, 05, 05, 09, 09, 0d, 0d, 11, 11, 15, 0e, 01, 1f, 01, 00, 41, 01, 01, 09, 00, 0a, 01, 00, 0d, 00, 0e, 28, 06, 05, 00, 0d, 00, 2a, 30, 05, 02, 01, 02, 00, 00, 0d, 00, 0e, 05, 00, 13, 00, 14, 30, 09, 06, 02, 03, 00, 00, 13, 00, 14, 09, 00, 19, 00, 1a, 30, 0d, 0a, 03, 04, 00, 00, 19, 00, 1a, 0d, 00, 1f, 00, 20, 30, 11, 0e, 04, 05, 00, 00, 1f, 00, 20, 11, 00, 24, 00, 27, 30, 15, 12, 05, 00, 00, 00, 24, 00, 27, 01, 01, 05, 01, 02]
+Raw bytes (111): 0x[01, 01, 05, 01, 05, 05, 09, 09, 0d, 0d, 11, 11, 15, 0e, 01, 20, 01, 00, 41, 01, 01, 09, 00, 0a, 01, 00, 0d, 00, 0e, 28, 06, 05, 00, 0d, 00, 2a, 30, 05, 02, 01, 02, 00, 00, 0d, 00, 0e, 05, 00, 13, 00, 14, 30, 09, 06, 02, 03, 00, 00, 13, 00, 14, 09, 00, 19, 00, 1a, 30, 0d, 0a, 03, 04, 00, 00, 19, 00, 1a, 0d, 00, 1f, 00, 20, 30, 11, 0e, 04, 05, 00, 00, 1f, 00, 20, 11, 00, 24, 00, 27, 30, 15, 12, 05, 00, 00, 00, 24, 00, 27, 01, 01, 05, 01, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 5
@@ -143,7 +143,7 @@ Number of expressions: 5
 - expression 3 operands: lhs = Counter(3), rhs = Counter(4)
 - expression 4 operands: lhs = Counter(4), rhs = Counter(5)
 Number of file 0 mappings: 14
-- Code(Counter(0)) at (prev + 31, 1) to (start + 0, 65)
+- Code(Counter(0)) at (prev + 32, 1) to (start + 0, 65)
 - Code(Counter(0)) at (prev + 1, 9) to (start + 0, 10)
 - Code(Counter(0)) at (prev + 0, 13) to (start + 0, 14)
 - MCDCDecision { bitmap_idx: 6, conditions_num: 5 } at (prev + 0, 13) to (start + 0, 42)
diff --git a/tests/coverage/mcdc/non_control_flow.coverage b/tests/coverage/mcdc/non_control_flow.coverage
index 204c46dc7b5..cead419fbdf 100644
--- a/tests/coverage/mcdc/non_control_flow.coverage
+++ b/tests/coverage/mcdc/non_control_flow.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |//@ min-llvm-version: 19
    LL|       |//@ compile-flags: -Zcoverage-options=mcdc
diff --git a/tests/coverage/mcdc/non_control_flow.rs b/tests/coverage/mcdc/non_control_flow.rs
index a836d8b55c0..6cfce6fae93 100644
--- a/tests/coverage/mcdc/non_control_flow.rs
+++ b/tests/coverage/mcdc/non_control_flow.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 //@ min-llvm-version: 19
 //@ compile-flags: -Zcoverage-options=mcdc
diff --git a/tests/coverage/no_cov_crate.cov-map b/tests/coverage/no_cov_crate.cov-map
index 0eb86ef9366..04171fdb79b 100644
--- a/tests/coverage/no_cov_crate.cov-map
+++ b/tests/coverage/no_cov_crate.cov-map
@@ -1,67 +1,67 @@
 Function name: no_cov_crate::add_coverage_1
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 15, 01, 02, 02]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 16, 01, 02, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 21, 1) to (start + 2, 2)
+- Code(Counter(0)) at (prev + 22, 1) to (start + 2, 2)
 Highest counter ID seen: c0
 
 Function name: no_cov_crate::add_coverage_2
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 19, 01, 02, 02]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 1a, 01, 02, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 25, 1) to (start + 2, 2)
+- Code(Counter(0)) at (prev + 26, 1) to (start + 2, 2)
 Highest counter ID seen: c0
 
 Function name: no_cov_crate::add_coverage_not_called (unused)
-Raw bytes (9): 0x[01, 01, 00, 01, 00, 1e, 01, 02, 02]
+Raw bytes (9): 0x[01, 01, 00, 01, 00, 1f, 01, 02, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Zero) at (prev + 30, 1) to (start + 2, 2)
+- Code(Zero) at (prev + 31, 1) to (start + 2, 2)
 Highest counter ID seen: (none)
 
 Function name: no_cov_crate::main
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 4e, 01, 0b, 02]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 4f, 01, 0b, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 78, 1) to (start + 11, 2)
+- Code(Counter(0)) at (prev + 79, 1) to (start + 11, 2)
 Highest counter ID seen: c0
 
 Function name: no_cov_crate::nested_fns::outer
-Raw bytes (14): 0x[01, 01, 00, 02, 01, 32, 05, 02, 23, 01, 0c, 05, 00, 06]
+Raw bytes (14): 0x[01, 01, 00, 02, 01, 33, 05, 02, 23, 01, 0c, 05, 00, 06]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 2
-- Code(Counter(0)) at (prev + 50, 5) to (start + 2, 35)
+- Code(Counter(0)) at (prev + 51, 5) to (start + 2, 35)
 - Code(Counter(0)) at (prev + 12, 5) to (start + 0, 6)
 Highest counter ID seen: c0
 
 Function name: no_cov_crate::nested_fns::outer_both_covered
-Raw bytes (14): 0x[01, 01, 00, 02, 01, 40, 05, 02, 17, 01, 0b, 05, 00, 06]
+Raw bytes (14): 0x[01, 01, 00, 02, 01, 41, 05, 02, 17, 01, 0b, 05, 00, 06]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 2
-- Code(Counter(0)) at (prev + 64, 5) to (start + 2, 23)
+- Code(Counter(0)) at (prev + 65, 5) to (start + 2, 23)
 - Code(Counter(0)) at (prev + 11, 5) to (start + 0, 6)
 Highest counter ID seen: c0
 
 Function name: no_cov_crate::nested_fns::outer_both_covered::inner
-Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 44, 09, 01, 17, 05, 01, 18, 02, 0e, 02, 02, 14, 02, 0e, 01, 03, 09, 00, 0a]
+Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 45, 09, 01, 17, 05, 01, 18, 02, 0e, 02, 02, 14, 02, 0e, 01, 03, 09, 00, 0a]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
 - expression 0 operands: lhs = Counter(0), rhs = Counter(1)
 Number of file 0 mappings: 4
-- Code(Counter(0)) at (prev + 68, 9) to (start + 1, 23)
+- Code(Counter(0)) at (prev + 69, 9) to (start + 1, 23)
 - Code(Counter(1)) at (prev + 1, 24) to (start + 2, 14)
 - Code(Expression(0, Sub)) at (prev + 2, 20) to (start + 2, 14)
     = (c0 - c1)
diff --git a/tests/coverage/no_cov_crate.coverage b/tests/coverage/no_cov_crate.coverage
index a75057287bc..2a8961e6c93 100644
--- a/tests/coverage/no_cov_crate.coverage
+++ b/tests/coverage/no_cov_crate.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |// Enables `coverage(off)` on the entire crate
    LL|       |//@ reference: attributes.coverage.intro
    LL|       |//@ reference: attributes.coverage.nesting
diff --git a/tests/coverage/no_cov_crate.rs b/tests/coverage/no_cov_crate.rs
index df8594e9790..72fd6317a17 100644
--- a/tests/coverage/no_cov_crate.rs
+++ b/tests/coverage/no_cov_crate.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 // Enables `coverage(off)` on the entire crate
 //@ reference: attributes.coverage.intro
 //@ reference: attributes.coverage.nesting
diff --git a/tests/coverage/no_spans.cov-map b/tests/coverage/no_spans.cov-map
index c6178fc41cf..7f43b68fa90 100644
--- a/tests/coverage/no_spans.cov-map
+++ b/tests/coverage/no_spans.cov-map
@@ -1,18 +1,18 @@
 Function name: no_spans::affected_function
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 19, 1c, 00, 1d]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 1a, 1c, 00, 1d]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 25, 28) to (start + 0, 29)
+- Code(Counter(0)) at (prev + 26, 28) to (start + 0, 29)
 Highest counter ID seen: c0
 
 Function name: no_spans::affected_function::{closure#0}
-Raw bytes (9): 0x[01, 01, 00, 01, 01, 1a, 0c, 00, 0e]
+Raw bytes (9): 0x[01, 01, 00, 01, 01, 1b, 0c, 00, 0e]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 1
-- Code(Counter(0)) at (prev + 26, 12) to (start + 0, 14)
+- Code(Counter(0)) at (prev + 27, 12) to (start + 0, 14)
 Highest counter ID seen: c0
 
diff --git a/tests/coverage/no_spans.coverage b/tests/coverage/no_spans.coverage
index c722210e35f..19e8c2fe5b6 100644
--- a/tests/coverage/no_spans.coverage
+++ b/tests/coverage/no_spans.coverage
@@ -1,3 +1,4 @@
+   LL|       |#![feature(coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |
    LL|       |// If the span extractor can't find any relevant spans for a function, the
diff --git a/tests/coverage/no_spans.rs b/tests/coverage/no_spans.rs
index db28bfd0590..e5312406f8a 100644
--- a/tests/coverage/no_spans.rs
+++ b/tests/coverage/no_spans.rs
@@ -1,3 +1,4 @@
+#![feature(coverage_attribute)]
 //@ edition: 2021
 
 // If the span extractor can't find any relevant spans for a function, the
diff --git a/tests/coverage/unreachable.coverage b/tests/coverage/unreachable.coverage
index 6f9f45dce1e..aa37ccc7d33 100644
--- a/tests/coverage/unreachable.coverage
+++ b/tests/coverage/unreachable.coverage
@@ -1,4 +1,4 @@
-   LL|       |#![feature(core_intrinsics)]
+   LL|       |#![feature(core_intrinsics, coverage_attribute)]
    LL|       |//@ edition: 2021
    LL|       |
    LL|       |// <https://github.com/rust-lang/rust/issues/116171>
diff --git a/tests/coverage/unreachable.rs b/tests/coverage/unreachable.rs
index d6082f85a36..443e1c8ccab 100644
--- a/tests/coverage/unreachable.rs
+++ b/tests/coverage/unreachable.rs
@@ -1,4 +1,4 @@
-#![feature(core_intrinsics)]
+#![feature(core_intrinsics, coverage_attribute)]
 //@ edition: 2021
 
 // <https://github.com/rust-lang/rust/issues/116171>