forked from OSchip/llvm-project
70 lines
2.7 KiB
LLVM
70 lines
2.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -O3 -mtriple=x86_64-pc-linux < %s | FileCheck %s --check-prefixes=COMMON,NOFMA
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; RUN: llc -O3 -mtriple=x86_64-pc-linux -mattr=+fma < %s | FileCheck %s --check-prefixes=COMMON,FMA
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; RUN: llc -O3 -mtriple=x86_64-pc-linux -mattr=+avx512f < %s | FileCheck %s --check-prefixes=COMMON,FMA
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; Verify that fma(3.5) isn't simplified when the rounding mode is
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; unknown.
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define float @f17() #0 {
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; NOFMA-LABEL: f17:
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; NOFMA: # %bb.0: # %entry
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; NOFMA-NEXT: pushq %rax
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; NOFMA-NEXT: .cfi_def_cfa_offset 16
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; NOFMA-NEXT: movss {{.*#+}} xmm0 = mem[0],zero,zero,zero
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; NOFMA-NEXT: movaps %xmm0, %xmm1
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; NOFMA-NEXT: movaps %xmm0, %xmm2
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; NOFMA-NEXT: callq fmaf
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; NOFMA-NEXT: popq %rax
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; NOFMA-NEXT: .cfi_def_cfa_offset 8
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; NOFMA-NEXT: retq
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;
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; FMA-LABEL: f17:
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; FMA: # %bb.0: # %entry
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; FMA-NEXT: vmovss {{.*#+}} xmm0 = mem[0],zero,zero,zero
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; FMA-NEXT: vfmadd213ss {{.*#+}} xmm0 = (xmm0 * xmm0) + xmm0
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; FMA-NEXT: retq
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entry:
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%result = call float @llvm.experimental.constrained.fma.f32(
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float 3.5,
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float 3.5,
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float 3.5,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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ret float %result
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}
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; Verify that fma(42.1) isn't simplified when the rounding mode is
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; unknown.
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define double @f18() #0 {
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; NOFMA-LABEL: f18:
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; NOFMA: # %bb.0: # %entry
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; NOFMA-NEXT: pushq %rax
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; NOFMA-NEXT: .cfi_def_cfa_offset 16
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; NOFMA-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero
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; NOFMA-NEXT: movaps %xmm0, %xmm1
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; NOFMA-NEXT: movaps %xmm0, %xmm2
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; NOFMA-NEXT: callq fma
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; NOFMA-NEXT: popq %rax
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; NOFMA-NEXT: .cfi_def_cfa_offset 8
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; NOFMA-NEXT: retq
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;
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; FMA-LABEL: f18:
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; FMA: # %bb.0: # %entry
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; FMA-NEXT: vmovsd {{.*#+}} xmm0 = mem[0],zero
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; FMA-NEXT: vfmadd213sd {{.*#+}} xmm0 = (xmm0 * xmm0) + xmm0
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; FMA-NEXT: retq
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entry:
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%result = call double @llvm.experimental.constrained.fma.f64(
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double 42.1,
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double 42.1,
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double 42.1,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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ret double %result
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}
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attributes #0 = { strictfp }
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declare float @llvm.experimental.constrained.fma.f32(float, float, float, metadata, metadata)
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declare double @llvm.experimental.constrained.fma.f64(double, double, double, metadata, metadata)
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