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-rw-r--r--tests/codegen/asm-sanitize-llvm.rs2
-rw-r--r--tests/codegen/async-fn-debug-awaitee-field.rs2
-rw-r--r--tests/codegen/debug-linkage-name.rs4
-rw-r--r--tests/codegen/default-requires-uwtable.rs2
-rw-r--r--tests/codegen/drop.rs2
-rw-r--r--tests/codegen/force-frame-pointers.rs2
-rw-r--r--tests/codegen/force-unwind-tables.rs2
-rw-r--r--tests/codegen/inline-function-args-debug-info.rs5
-rw-r--r--tests/codegen/instrument-mcount.rs2
-rw-r--r--tests/codegen/instrument-xray/basic.rs2
-rw-r--r--tests/codegen/instrument-xray/options-combine.rs6
-rw-r--r--tests/codegen/instrument-xray/options-override.rs4
-rw-r--r--tests/codegen/panic-unwind-default-uwtable.rs2
-rw-r--r--tests/codegen/personality_lifetimes.rs2
-rw-r--r--tests/codegen/sanitizer/cfi-emit-type-metadata-attr-cfi-encoding.rs2
-rw-r--r--tests/codegen/sanitizer/cfi-emit-type-metadata-id-itanium-cxx-abi.rs2
-rw-r--r--tests/codegen/sanitizer/cfi-generalize-pointers.rs2
-rw-r--r--tests/codegen/sanitizer/cfi-normalize-integers.rs2
-rw-r--r--tests/codegen/sanitizer/kasan-emits-instrumentation.rs2
-rw-r--r--tests/codegen/sanitizer/memtag-attr-check.rs2
-rw-r--r--tests/codegen/sanitizer/no-sanitize.rs2
-rw-r--r--tests/codegen/sanitizer/safestack-attr-check.rs2
-rw-r--r--tests/codegen/src-hash-algorithm/src-hash-algorithm-md5.rs2
-rw-r--r--tests/codegen/src-hash-algorithm/src-hash-algorithm-sha1.rs2
-rw-r--r--tests/codegen/src-hash-algorithm/src-hash-algorithm-sha256.rs2
-rw-r--r--tests/codegen/target-cpu-on-functions.rs3
-rw-r--r--tests/codegen/tied-features-strength.rs8
-rw-r--r--tests/codegen/tune-cpu-on-functions.rs2
-rw-r--r--tests/codegen/vec_pop_push_noop.rs24
29 files changed, 64 insertions, 34 deletions
diff --git a/tests/codegen/asm-sanitize-llvm.rs b/tests/codegen/asm-sanitize-llvm.rs
index 6dcacd08cac..41bed98038e 100644
--- a/tests/codegen/asm-sanitize-llvm.rs
+++ b/tests/codegen/asm-sanitize-llvm.rs
@@ -1,5 +1,5 @@
 // FIXME(nagisa): remove the flags below once all targets support `asm!`.
-// compile-flags: --target x86_64-unknown-linux-gnu
+// compile-flags: --target x86_64-unknown-linux-gnu -Copt-level=0
 // needs-llvm-components: x86
 
 // Verify we sanitize the special tokens for the LLVM inline-assembly, ensuring people won't
diff --git a/tests/codegen/async-fn-debug-awaitee-field.rs b/tests/codegen/async-fn-debug-awaitee-field.rs
index 690505fd72b..29defe68f8b 100644
--- a/tests/codegen/async-fn-debug-awaitee-field.rs
+++ b/tests/codegen/async-fn-debug-awaitee-field.rs
@@ -3,7 +3,7 @@
 // extensions rely on the field having this name.
 
 // ignore-tidy-linelength
-// compile-flags: -C debuginfo=2 --edition=2018
+// compile-flags: -C debuginfo=2 --edition=2018 -Copt-level=0
 
 #![crate_type = "lib"]
 
diff --git a/tests/codegen/debug-linkage-name.rs b/tests/codegen/debug-linkage-name.rs
index 9011a7da51d..9bf4d521fc0 100644
--- a/tests/codegen/debug-linkage-name.rs
+++ b/tests/codegen/debug-linkage-name.rs
@@ -1,8 +1,8 @@
 // Verifies that linkage name is omitted when it is
 // the same as variable / function name.
 //
-// compile-flags: -C no-prepopulate-passes
-// compile-flags: -C debuginfo=2
+// compile-flags: -C no-prepopulate-passes -Copt-level=0
+// compile-flags: -C debuginfo=2 -Copt-level=0
 #![crate_type = "lib"]
 
 pub mod xyz {
diff --git a/tests/codegen/default-requires-uwtable.rs b/tests/codegen/default-requires-uwtable.rs
index 5d77d3f14bb..26424f03568 100644
--- a/tests/codegen/default-requires-uwtable.rs
+++ b/tests/codegen/default-requires-uwtable.rs
@@ -1,5 +1,5 @@
 // revisions: WINDOWS ANDROID
-// compile-flags: -C panic=abort
+// compile-flags: -C panic=abort -Copt-level=0
 // [WINDOWS] compile-flags: --target=x86_64-pc-windows-msvc
 // [WINDOWS] needs-llvm-components: x86
 // [ANDROID] compile-flags: --target=armv7-linux-androideabi
diff --git a/tests/codegen/drop.rs b/tests/codegen/drop.rs
index 3615ef47b53..14b5840e2fe 100644
--- a/tests/codegen/drop.rs
+++ b/tests/codegen/drop.rs
@@ -7,10 +7,12 @@
 struct SomeUniqueName;
 
 impl Drop for SomeUniqueName {
+    #[inline(never)]
     fn drop(&mut self) {
     }
 }
 
+#[inline(never)]
 pub fn possibly_unwinding() {
 }
 
diff --git a/tests/codegen/force-frame-pointers.rs b/tests/codegen/force-frame-pointers.rs
index 637c4234654..5791ae47937 100644
--- a/tests/codegen/force-frame-pointers.rs
+++ b/tests/codegen/force-frame-pointers.rs
@@ -1,4 +1,4 @@
-// compile-flags: -C no-prepopulate-passes -C force-frame-pointers=y
+// compile-flags: -C no-prepopulate-passes -C force-frame-pointers=y -Copt-level=0
 
 #![crate_type="lib"]
 
diff --git a/tests/codegen/force-unwind-tables.rs b/tests/codegen/force-unwind-tables.rs
index 4c0a5602c6d..c904978c9ff 100644
--- a/tests/codegen/force-unwind-tables.rs
+++ b/tests/codegen/force-unwind-tables.rs
@@ -1,4 +1,4 @@
-// compile-flags: -C no-prepopulate-passes -C force-unwind-tables=y
+// compile-flags: -C no-prepopulate-passes -C force-unwind-tables=y -Copt-level=0
 
 #![crate_type="lib"]
 
diff --git a/tests/codegen/inline-function-args-debug-info.rs b/tests/codegen/inline-function-args-debug-info.rs
index e3d8caa49d4..ffae99e0f24 100644
--- a/tests/codegen/inline-function-args-debug-info.rs
+++ b/tests/codegen/inline-function-args-debug-info.rs
@@ -6,6 +6,7 @@
 
 #![crate_type = "lib"]
 
+#[inline(never)]
 pub fn outer_function(x: usize, y: usize) -> usize {
     inner_function(x, y) + 1
 }
@@ -13,8 +14,8 @@ pub fn outer_function(x: usize, y: usize) -> usize {
 #[inline]
 fn inner_function(aaaa: usize, bbbb: usize) -> usize {
     // CHECK: !DILocalVariable(name: "aaaa", arg: 1
-    // CHECK-SAME: line: 14
+    // CHECK-SAME: line: 15
     // CHECK: !DILocalVariable(name: "bbbb", arg: 2
-    // CHECK-SAME: line: 14
+    // CHECK-SAME: line: 15
     aaaa + bbbb
 }
diff --git a/tests/codegen/instrument-mcount.rs b/tests/codegen/instrument-mcount.rs
index b26076e7a7b..50823775a41 100644
--- a/tests/codegen/instrument-mcount.rs
+++ b/tests/codegen/instrument-mcount.rs
@@ -1,5 +1,5 @@
 //
-// compile-flags: -Z instrument-mcount
+// compile-flags: -Z instrument-mcount -Copt-level=0
 
 #![crate_type = "lib"]
 
diff --git a/tests/codegen/instrument-xray/basic.rs b/tests/codegen/instrument-xray/basic.rs
index d3e49d53174..5da878474f2 100644
--- a/tests/codegen/instrument-xray/basic.rs
+++ b/tests/codegen/instrument-xray/basic.rs
@@ -1,7 +1,7 @@
 // Checks that `-Z instrument-xray` produces expected instrumentation.
 //
 // needs-xray
-// compile-flags: -Z instrument-xray=always
+// compile-flags: -Z instrument-xray=always -Copt-level=0
 
 #![crate_type = "lib"]
 
diff --git a/tests/codegen/instrument-xray/options-combine.rs b/tests/codegen/instrument-xray/options-combine.rs
index f7e500b65f6..d1e56586279 100644
--- a/tests/codegen/instrument-xray/options-combine.rs
+++ b/tests/codegen/instrument-xray/options-combine.rs
@@ -1,9 +1,9 @@
 // Checks that `-Z instrument-xray` options can be specified multiple times.
 //
 // needs-xray
-// compile-flags: -Z instrument-xray=skip-exit
-// compile-flags: -Z instrument-xray=instruction-threshold=123
-// compile-flags: -Z instrument-xray=instruction-threshold=456
+// compile-flags: -Z instrument-xray=skip-exit -Copt-level=0
+// compile-flags: -Z instrument-xray=instruction-threshold=123 -Copt-level=0
+// compile-flags: -Z instrument-xray=instruction-threshold=456 -Copt-level=0
 
 #![crate_type = "lib"]
 
diff --git a/tests/codegen/instrument-xray/options-override.rs b/tests/codegen/instrument-xray/options-override.rs
index 00f81837902..b1fc4c966dc 100644
--- a/tests/codegen/instrument-xray/options-override.rs
+++ b/tests/codegen/instrument-xray/options-override.rs
@@ -1,8 +1,8 @@
 // Checks that the last `-Z instrument-xray` option wins.
 //
 // needs-xray
-// compile-flags: -Z instrument-xray=always
-// compile-flags: -Z instrument-xray=never
+// compile-flags: -Z instrument-xray=always -Copt-level=0
+// compile-flags: -Z instrument-xray=never -Copt-level=0
 
 #![crate_type = "lib"]
 
diff --git a/tests/codegen/panic-unwind-default-uwtable.rs b/tests/codegen/panic-unwind-default-uwtable.rs
index 4c85008cf35..b78b159d20d 100644
--- a/tests/codegen/panic-unwind-default-uwtable.rs
+++ b/tests/codegen/panic-unwind-default-uwtable.rs
@@ -1,4 +1,4 @@
-// compile-flags: -C panic=unwind -C no-prepopulate-passes
+// compile-flags: -C panic=unwind -C no-prepopulate-passes -Copt-level=0
 
 #![crate_type = "lib"]
 
diff --git a/tests/codegen/personality_lifetimes.rs b/tests/codegen/personality_lifetimes.rs
index 47243bece98..b39718a8d08 100644
--- a/tests/codegen/personality_lifetimes.rs
+++ b/tests/codegen/personality_lifetimes.rs
@@ -9,10 +9,12 @@
 struct S;
 
 impl Drop for S {
+    #[inline(never)]
     fn drop(&mut self) {
     }
 }
 
+#[inline(never)]
 fn might_unwind() {
 }
 
diff --git a/tests/codegen/sanitizer/cfi-emit-type-metadata-attr-cfi-encoding.rs b/tests/codegen/sanitizer/cfi-emit-type-metadata-attr-cfi-encoding.rs
index 084d8bf803c..f16890afad0 100644
--- a/tests/codegen/sanitizer/cfi-emit-type-metadata-attr-cfi-encoding.rs
+++ b/tests/codegen/sanitizer/cfi-emit-type-metadata-attr-cfi-encoding.rs
@@ -1,7 +1,7 @@
 // Verifies that user-defined CFI encoding for types are emitted.
 //
 // needs-sanitizer-cfi
-// compile-flags: -Clto -Cno-prepopulate-passes -Ctarget-feature=-crt-static -Zsanitizer=cfi
+// compile-flags: -Clto -Cno-prepopulate-passes -Ctarget-feature=-crt-static -Zsanitizer=cfi -Copt-level=0
 
 #![crate_type="lib"]
 #![feature(cfi_encoding, extern_types)]
diff --git a/tests/codegen/sanitizer/cfi-emit-type-metadata-id-itanium-cxx-abi.rs b/tests/codegen/sanitizer/cfi-emit-type-metadata-id-itanium-cxx-abi.rs
index 2d8b13e2080..4ed7c27fc4e 100644
--- a/tests/codegen/sanitizer/cfi-emit-type-metadata-id-itanium-cxx-abi.rs
+++ b/tests/codegen/sanitizer/cfi-emit-type-metadata-id-itanium-cxx-abi.rs
@@ -1,7 +1,7 @@
 // Verifies that type metadata identifiers for functions are emitted correctly.
 //
 // needs-sanitizer-cfi
-// compile-flags: -Clto -Cno-prepopulate-passes -Ctarget-feature=-crt-static -Zsanitizer=cfi
+// compile-flags: -Clto -Cno-prepopulate-passes -Ctarget-feature=-crt-static -Zsanitizer=cfi -Copt-level=0
 
 #![crate_type="lib"]
 #![allow(dead_code)]
diff --git a/tests/codegen/sanitizer/cfi-generalize-pointers.rs b/tests/codegen/sanitizer/cfi-generalize-pointers.rs
index 677ebdb27ec..17cb42d3e74 100644
--- a/tests/codegen/sanitizer/cfi-generalize-pointers.rs
+++ b/tests/codegen/sanitizer/cfi-generalize-pointers.rs
@@ -1,7 +1,7 @@
 // Verifies that pointer types are generalized.
 //
 // needs-sanitizer-cfi
-// compile-flags: -Clto -Cno-prepopulate-passes -Ctarget-feature=-crt-static -Zsanitizer=cfi -Zsanitizer-cfi-generalize-pointers
+// compile-flags: -Clto -Cno-prepopulate-passes -Ctarget-feature=-crt-static -Zsanitizer=cfi -Zsanitizer-cfi-generalize-pointers -Copt-level=0
 
 #![crate_type="lib"]
 
diff --git a/tests/codegen/sanitizer/cfi-normalize-integers.rs b/tests/codegen/sanitizer/cfi-normalize-integers.rs
index aa3913cb8e7..9663aa54c28 100644
--- a/tests/codegen/sanitizer/cfi-normalize-integers.rs
+++ b/tests/codegen/sanitizer/cfi-normalize-integers.rs
@@ -1,7 +1,7 @@
 // Verifies that integer types are normalized.
 //
 // needs-sanitizer-cfi
-// compile-flags: -Clto -Cno-prepopulate-passes -Ctarget-feature=-crt-static -Zsanitizer=cfi -Zsanitizer-cfi-normalize-integers
+// compile-flags: -Clto -Cno-prepopulate-passes -Ctarget-feature=-crt-static -Zsanitizer=cfi -Zsanitizer-cfi-normalize-integers -Copt-level=0
 
 #![crate_type="lib"]
 
diff --git a/tests/codegen/sanitizer/kasan-emits-instrumentation.rs b/tests/codegen/sanitizer/kasan-emits-instrumentation.rs
index 783bc47b9d0..29d50d8df24 100644
--- a/tests/codegen/sanitizer/kasan-emits-instrumentation.rs
+++ b/tests/codegen/sanitizer/kasan-emits-instrumentation.rs
@@ -1,6 +1,6 @@
 // Verifies that `-Zsanitizer=kernel-address` emits sanitizer instrumentation.
 
-// compile-flags: -Zsanitizer=kernel-address
+// compile-flags: -Zsanitizer=kernel-address -Copt-level=0
 // revisions: aarch64 riscv64imac riscv64gc x86_64
 //[aarch64] compile-flags: --target aarch64-unknown-none
 //[aarch64] needs-llvm-components: aarch64
diff --git a/tests/codegen/sanitizer/memtag-attr-check.rs b/tests/codegen/sanitizer/memtag-attr-check.rs
index 2fd362656d4..3e5e14e8429 100644
--- a/tests/codegen/sanitizer/memtag-attr-check.rs
+++ b/tests/codegen/sanitizer/memtag-attr-check.rs
@@ -2,7 +2,7 @@
 // applied when enabling the memtag sanitizer.
 //
 // needs-sanitizer-memtag
-// compile-flags: -Zsanitizer=memtag -Ctarget-feature=+mte
+// compile-flags: -Zsanitizer=memtag -Ctarget-feature=+mte -Copt-level=0
 
 #![crate_type = "lib"]
 
diff --git a/tests/codegen/sanitizer/no-sanitize.rs b/tests/codegen/sanitizer/no-sanitize.rs
index d0b69243453..029cf8e7f5c 100644
--- a/tests/codegen/sanitizer/no-sanitize.rs
+++ b/tests/codegen/sanitizer/no-sanitize.rs
@@ -2,7 +2,7 @@
 // selectively disable sanitizer instrumentation.
 //
 // needs-sanitizer-address
-// compile-flags: -Zsanitizer=address -Ctarget-feature=-crt-static
+// compile-flags: -Zsanitizer=address -Ctarget-feature=-crt-static -Copt-level=0
 
 #![crate_type="lib"]
 #![feature(no_sanitize)]
diff --git a/tests/codegen/sanitizer/safestack-attr-check.rs b/tests/codegen/sanitizer/safestack-attr-check.rs
index b73ed00e730..b19e2d13133 100644
--- a/tests/codegen/sanitizer/safestack-attr-check.rs
+++ b/tests/codegen/sanitizer/safestack-attr-check.rs
@@ -1,7 +1,7 @@
 // This tests that the safestack attribute is applied when enabling the safe-stack sanitizer.
 //
 // needs-sanitizer-safestack
-// compile-flags: -Zsanitizer=safestack
+// compile-flags: -Zsanitizer=safestack -Copt-level=0
 
 #![crate_type = "lib"]
 
diff --git a/tests/codegen/src-hash-algorithm/src-hash-algorithm-md5.rs b/tests/codegen/src-hash-algorithm/src-hash-algorithm-md5.rs
index 64be1127786..6ef0f0406d2 100644
--- a/tests/codegen/src-hash-algorithm/src-hash-algorithm-md5.rs
+++ b/tests/codegen/src-hash-algorithm/src-hash-algorithm-md5.rs
@@ -1,4 +1,4 @@
-// compile-flags: -g -Z src-hash-algorithm=md5
+// compile-flags: -g -Z src-hash-algorithm=md5 -Copt-level=0
 
 #![crate_type = "lib"]
 
diff --git a/tests/codegen/src-hash-algorithm/src-hash-algorithm-sha1.rs b/tests/codegen/src-hash-algorithm/src-hash-algorithm-sha1.rs
index 54e07152142..ebfa3040aca 100644
--- a/tests/codegen/src-hash-algorithm/src-hash-algorithm-sha1.rs
+++ b/tests/codegen/src-hash-algorithm/src-hash-algorithm-sha1.rs
@@ -1,4 +1,4 @@
-// compile-flags: -g -Z src-hash-algorithm=sha1
+// compile-flags: -g -Z src-hash-algorithm=sha1 -Copt-level=0
 
 #![crate_type = "lib"]
 
diff --git a/tests/codegen/src-hash-algorithm/src-hash-algorithm-sha256.rs b/tests/codegen/src-hash-algorithm/src-hash-algorithm-sha256.rs
index dc7db8e2372..5ec678d55f3 100644
--- a/tests/codegen/src-hash-algorithm/src-hash-algorithm-sha256.rs
+++ b/tests/codegen/src-hash-algorithm/src-hash-algorithm-sha256.rs
@@ -1,4 +1,4 @@
-// compile-flags: -g -Z src-hash-algorithm=sha256
+// compile-flags: -g -Z src-hash-algorithm=sha256 -Copt-level=0
 
 #![crate_type = "lib"]
 
diff --git a/tests/codegen/target-cpu-on-functions.rs b/tests/codegen/target-cpu-on-functions.rs
index c043eceb5cd..d5250f22cca 100644
--- a/tests/codegen/target-cpu-on-functions.rs
+++ b/tests/codegen/target-cpu-on-functions.rs
@@ -15,7 +15,8 @@ pub extern "C" fn exported() {
 
 // CHECK-LABEL: ; target_cpu_on_functions::not_exported
 // CHECK-NEXT: ; Function Attrs:
-// CHECK-NEXT: define {{.*}}() {{.*}} #0
+// CHECK-NEXT: define {{.*}}() {{.*}} #1
+#[inline(never)]
 fn not_exported() {}
 
 // CHECK: attributes #0 = {{.*}} "target-cpu"="{{.*}}"
diff --git a/tests/codegen/tied-features-strength.rs b/tests/codegen/tied-features-strength.rs
index 51334c12158..71cea48c4da 100644
--- a/tests/codegen/tied-features-strength.rs
+++ b/tests/codegen/tied-features-strength.rs
@@ -7,16 +7,16 @@
 // are targeting older LLVM versions. Once the min supported version
 // is LLVM-14 we can remove the optional regex matching for this feature.
 
-// [ENABLE_SVE] compile-flags: -C target-feature=+sve
+// [ENABLE_SVE] compile-flags: -C target-feature=+sve -Copt-level=0
 // ENABLE_SVE: attributes #0 = { {{.*}} "target-features"="{{((\+outline-atomics,?)|(\+v8a,?)?|(\+sve,?)|(\+neon,?))*}}" }
 
-// [DISABLE_SVE] compile-flags: -C target-feature=-sve
+// [DISABLE_SVE] compile-flags: -C target-feature=-sve -Copt-level=0
 // DISABLE_SVE: attributes #0 = { {{.*}} "target-features"="{{((\+outline-atomics,?)|(\+v8a,?)?|(-sve,?)|(\+neon,?))*}}" }
 
-// [DISABLE_NEON] compile-flags: -C target-feature=-neon
+// [DISABLE_NEON] compile-flags: -C target-feature=-neon -Copt-level=0
 // DISABLE_NEON: attributes #0 = { {{.*}} "target-features"="{{((\+outline-atomics,?)|(\+v8a,?)?|(-fp-armv8,?)|(-neon,?))*}}" }
 
-// [ENABLE_NEON] compile-flags: -C target-feature=+neon
+// [ENABLE_NEON] compile-flags: -C target-feature=+neon -Copt-level=0
 // ENABLE_NEON: attributes #0 = { {{.*}} "target-features"="{{((\+outline-atomics,?)|(\+v8a,?)?|(\+fp-armv8,?)|(\+neon,?))*}}" }
 
 
diff --git a/tests/codegen/tune-cpu-on-functions.rs b/tests/codegen/tune-cpu-on-functions.rs
index ed8dc0e9383..116f0772d25 100644
--- a/tests/codegen/tune-cpu-on-functions.rs
+++ b/tests/codegen/tune-cpu-on-functions.rs
@@ -3,7 +3,7 @@
 
 // no-prefer-dynamic
 //
-// compile-flags: -C no-prepopulate-passes -C panic=abort -C linker-plugin-lto -Cpasses=name-anon-globals -Z tune-cpu=generic
+// compile-flags: -C no-prepopulate-passes -C panic=abort -C linker-plugin-lto -Cpasses=name-anon-globals -Z tune-cpu=generic -Copt-level=0
 
 #![crate_type = "staticlib"]
 
diff --git a/tests/codegen/vec_pop_push_noop.rs b/tests/codegen/vec_pop_push_noop.rs
new file mode 100644
index 00000000000..8bc7b68a816
--- /dev/null
+++ b/tests/codegen/vec_pop_push_noop.rs
@@ -0,0 +1,24 @@
+// compile-flags: -O
+
+#![crate_type = "lib"]
+
+#[no_mangle]
+// CHECK-LABEL: @noop(
+pub fn noop(v: &mut Vec<u8>) {
+    // CHECK-NOT: reserve_for_push
+    // CHECK-NOT: call
+    // CHECK: tail call void @llvm.assume
+    // CHECK-NOT: reserve_for_push
+    // CHECK-NOT: call
+    // CHECK: ret
+    if let Some(x) = v.pop() {
+        v.push(x)
+    }
+}
+
+#[no_mangle]
+// CHECK-LABEL: @push_byte(
+pub fn push_byte(v: &mut Vec<u8>) {
+    // CHECK: call {{.*}}reserve_for_push
+    v.push(3);
+}