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81 lines
3.2 KiB
LLVM
81 lines
3.2 KiB
LLVM
; RUN: llc < %s -mtriple=i386-apple-darwin10 -mattr=+fma,-fma4 | FileCheck %s --check-prefix=CHECK-FMA-INST
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; RUN: llc < %s -mtriple=i386-apple-darwin10 -mattr=-fma,-fma4 | FileCheck %s --check-prefix=CHECK-FMA-CALL
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; RUN: llc < %s -mtriple=x86_64-apple-darwin10 -mattr=+fma,-fma4 | FileCheck %s --check-prefix=CHECK-FMA-INST
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; RUN: llc < %s -mtriple=x86_64-apple-darwin10 -mattr=-fma,-fma4 | FileCheck %s --check-prefix=CHECK-FMA-CALL
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; RUN: llc < %s -march=x86 -mcpu=bdver2 -mattr=-fma4 | FileCheck %s --check-prefix=CHECK-FMA-INST
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; RUN: llc < %s -march=x86 -mcpu=bdver2 -mattr=-fma,-fma4 | FileCheck %s --check-prefix=CHECK-FMA-CALL
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; CHECK: test_f32
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; CHECK-FMA-INST: vfmadd213ss
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; CHECK-FMA-CALL: fmaf
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define float @test_f32(float %a, float %b, float %c) nounwind readnone ssp {
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entry:
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%call = tail call float @llvm.fma.f32(float %a, float %b, float %c) nounwind readnone
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ret float %call
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}
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; CHECK: test_f64
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; CHECK-FMA-INST: vfmadd213sd
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; CHECK-FMA-CALL: fma
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define double @test_f64(double %a, double %b, double %c) nounwind readnone ssp {
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entry:
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%call = tail call double @llvm.fma.f64(double %a, double %b, double %c) nounwind readnone
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ret double %call
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}
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; CHECK: test_f80
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; CHECK: fmal
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define x86_fp80 @test_f80(x86_fp80 %a, x86_fp80 %b, x86_fp80 %c) nounwind readnone ssp {
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entry:
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%call = tail call x86_fp80 @llvm.fma.f80(x86_fp80 %a, x86_fp80 %b, x86_fp80 %c) nounwind readnone
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ret x86_fp80 %call
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}
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; CHECK: test_f32_cst
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; CHECK-NOT: fma
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define float @test_f32_cst() nounwind readnone ssp {
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entry:
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%call = tail call float @llvm.fma.f32(float 3.0, float 3.0, float 3.0) nounwind readnone
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ret float %call
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}
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; Test FMA3 variant selection
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; CHECK-FMA-INST: fma3_select231ssX:
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; CHECK-FMA-INST: vfmadd231ss %xmm
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define float @fma3_select231ssX(float %x, float %y) #0 {
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entry:
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br label %while.body
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while.body: ; preds = %while.body, %while.body
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%acc.01 = phi float [ 0.000000e+00, %entry ], [ %acc, %while.body ]
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%acc = tail call float @llvm.fma.f32(float %x, float %y, float %acc.01) nounwind readnone
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%b = fcmp ueq float %acc, 0.0
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br i1 %b, label %while.body, label %while.end
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while.end: ; preds = %while.body, %entry
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ret float %acc
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}
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; Test FMA3 variant selection
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; CHECK-FMA-INST: fma3_select231pdY:
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; CHECK-FMA-INST: vfmadd231pd %ymm
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define <4 x double> @fma3_select231pdY(<4 x double> %x, <4 x double> %y) #0 {
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entry:
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br label %while.body
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while.body: ; preds = %entry, %while.body
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%acc.04 = phi <4 x double> [ zeroinitializer, %entry ], [ %add, %while.body ]
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%add = tail call <4 x double> @llvm.fma.v4f64(<4 x double> %x, <4 x double> %y, <4 x double> %acc.04)
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%vecext = extractelement <4 x double> %add, i32 0
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%cmp = fcmp oeq double %vecext, 0.000000e+00
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br i1 %cmp, label %while.body, label %while.end
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while.end: ; preds = %while.body
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ret <4 x double> %add
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}
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declare float @llvm.fma.f32(float, float, float) nounwind readnone
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declare double @llvm.fma.f64(double, double, double) nounwind readnone
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declare x86_fp80 @llvm.fma.f80(x86_fp80, x86_fp80, x86_fp80) nounwind readnone
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declare <4 x double> @llvm.fma.v4f64(<4 x double>, <4 x double>, <4 x double>) nounwind readnone
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