From 2cde11f2d145d031b26fe22a3e7d2e278bc0e6ba Mon Sep 17 00:00:00 2001 From: sayantn Date: Sun, 4 Aug 2024 02:32:03 +0530 Subject: [PATCH] Chore: add `x86_amx_intrinsics` feature flag to `core/lib.rs` and remove `issue-120720-reduce-nan.rs` --- library/core/src/lib.rs | 1 + tests/codegen/simd/issue-120720-reduce-nan.rs | 21 ------------------- 2 files changed, 1 insertion(+), 21 deletions(-) delete mode 100644 tests/codegen/simd/issue-120720-reduce-nan.rs diff --git a/library/core/src/lib.rs b/library/core/src/lib.rs index 9306581dca93..e74900ff7471 100644 --- a/library/core/src/lib.rs +++ b/library/core/src/lib.rs @@ -264,6 +264,7 @@ #![feature(sse4a_target_feature)] #![feature(tbm_target_feature)] #![feature(wasm_target_feature)] +#![feature(x86_amx_intrinsics)] // tidy-alphabetical-end // allow using `core::` in intra-doc links diff --git a/tests/codegen/simd/issue-120720-reduce-nan.rs b/tests/codegen/simd/issue-120720-reduce-nan.rs deleted file mode 100644 index 13af0bb076e6..000000000000 --- a/tests/codegen/simd/issue-120720-reduce-nan.rs +++ /dev/null @@ -1,21 +0,0 @@ -//@ compile-flags: -C opt-level=3 -C target-cpu=cannonlake -//@ only-x86_64 - -// In a previous implementation, _mm512_reduce_add_pd did the reduction with all fast-math flags -// enabled, making it UB to reduce a vector containing a NaN. - -#![crate_type = "lib"] -#![feature(stdarch_x86_avx512, avx512_target_feature)] -use std::arch::x86_64::*; - -// CHECK-LABEL: @demo( -#[no_mangle] -#[target_feature(enable = "avx512f")] // Function-level target feature mismatches inhibit inlining -pub unsafe fn demo() -> bool { - // CHECK: %0 = tail call reassoc double @llvm.vector.reduce.fadd.v8f64( - // CHECK: %_0.i = fcmp uno double %0, 0.000000e+00 - // CHECK: ret i1 %_0.i - let res = - unsafe { _mm512_reduce_add_pd(_mm512_set_pd(0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, f64::NAN)) }; - res.is_nan() -}