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| author | Nikita Popov <npopov@redhat.com> | 2025-07-29 12:05:36 +0200 |
|---|---|---|
| committer | Nikita Popov <npopov@redhat.com> | 2025-07-29 12:15:38 +0200 |
| commit | d50b4f10f18b2f84be72692e39dd5de7e8dde949 (patch) | |
| tree | 7a2dd059885051981558f6ea8e6cefda8ee121a1 | |
| parent | 56d9ed74452c8e19c532e98294d5d01925822e94 (diff) | |
| download | rust-d50b4f10f18b2f84be72692e39dd5de7e8dde949.tar.gz rust-d50b4f10f18b2f84be72692e39dd5de7e8dde949.zip | |
Adjust enum-discriminant-eq.rs for LLVM 21
The two xors get folded into the select.
| -rw-r--r-- | tests/codegen-llvm/enum/enum-discriminant-eq.rs | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/tests/codegen-llvm/enum/enum-discriminant-eq.rs b/tests/codegen-llvm/enum/enum-discriminant-eq.rs index 0494c5f551b..d599685c2e5 100644 --- a/tests/codegen-llvm/enum/enum-discriminant-eq.rs +++ b/tests/codegen-llvm/enum/enum-discriminant-eq.rs @@ -1,6 +1,9 @@ //@ compile-flags: -Copt-level=3 -Zmerge-functions=disabled //@ min-llvm-version: 20 //@ only-64bit +//@ revisions: LLVM20 LLVM21 +//@ [LLVM21] min-llvm-version: 21 +//@ [LLVM20] max-llvm-major-version: 20 // The `derive(PartialEq)` on enums with field-less variants compares discriminants, // so make sure we emit that in some reasonable way. @@ -137,17 +140,20 @@ pub fn mid_nz32_eq_discr(a: Mid<NonZero<u32>>, b: Mid<NonZero<u32>>) -> bool { pub fn mid_ac_eq_discr(a: Mid<AC>, b: Mid<AC>) -> bool { // CHECK-LABEL: @mid_ac_eq_discr( - // CHECK: %[[A_REL_DISCR:.+]] = xor i8 %a, -128 + // LLVM20: %[[A_REL_DISCR:.+]] = xor i8 %a, -128 // CHECK: %[[A_IS_NICHE:.+]] = icmp slt i8 %a, 0 // CHECK: %[[A_NOT_HOLE:.+]] = icmp ne i8 %a, -127 // CHECK: tail call void @llvm.assume(i1 %[[A_NOT_HOLE]]) - // CHECK: %[[A_DISCR:.+]] = select i1 %[[A_IS_NICHE]], i8 %[[A_REL_DISCR]], i8 1 + // LLVM20: %[[A_DISCR:.+]] = select i1 %[[A_IS_NICHE]], i8 %[[A_REL_DISCR]], i8 1 - // CHECK: %[[B_REL_DISCR:.+]] = xor i8 %b, -128 + // LLVM20: %[[B_REL_DISCR:.+]] = xor i8 %b, -128 // CHECK: %[[B_IS_NICHE:.+]] = icmp slt i8 %b, 0 // CHECK: %[[B_NOT_HOLE:.+]] = icmp ne i8 %b, -127 // CHECK: tail call void @llvm.assume(i1 %[[B_NOT_HOLE]]) - // CHECK: %[[B_DISCR:.+]] = select i1 %[[B_IS_NICHE]], i8 %[[B_REL_DISCR]], i8 1 + // LLVM20: %[[B_DISCR:.+]] = select i1 %[[B_IS_NICHE]], i8 %[[B_REL_DISCR]], i8 1 + + // LLVM21: %[[A_DISCR:.+]] = select i1 %[[A_IS_NICHE]], i8 %a, i8 -127 + // LLVM21: %[[B_DISCR:.+]] = select i1 %[[B_IS_NICHE]], i8 %b, i8 -127 // CHECK: %[[R:.+]] = icmp eq i8 %[[A_DISCR]], %[[B_DISCR]] // CHECK: ret i1 %[[R]] |