derek.holloway
7502bf64a4
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38 lines
1.3 KiB
LLVM
38 lines
1.3 KiB
LLVM
; RUN: llc < %s -mtriple=i386-apple-darwin10 -mattr=+fma,-fma4 | FileCheck %s
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; RUN: llc < %s -mtriple=x86_64-apple-darwin10 -mattr=+fma,-fma4 | FileCheck %s
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; RUN: llc < %s -mtriple=i686-- -mcpu=bdver2 -mattr=-fma4 | FileCheck %s
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; Test FMA3 variant selection
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; CHECK-LABEL: fma3_select231ssX:
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; CHECK: vfmadd231ss %xmm
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define float @fma3_select231ssX(float %x, float %y) {
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entry:
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br label %while.body
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while.body:
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%acc.01 = phi float [ 0.000000e+00, %entry ], [ %acc, %while.body ]
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%acc = call float @llvm.fma.f32(float %x, float %y, float %acc.01)
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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:
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ret float %acc
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}
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; CHECK-LABEL: fma3_select231pdY:
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; CHECK: vfmadd231pd %ymm
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define <4 x double> @fma3_select231pdY(<4 x double> %x, <4 x double> %y) {
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entry:
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br label %while.body
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while.body:
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%acc.04 = phi <4 x double> [ zeroinitializer, %entry ], [ %add, %while.body ]
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%add = 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:
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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)
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declare <4 x double> @llvm.fma.v4f64(<4 x double>, <4 x double>, <4 x double>)
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