Add a testcase for the changes in r199938.
<rdar://problem/15611947> llvm-svn: 200027
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@ -43,9 +43,9 @@ entry:
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}
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; Test FMA3 variant selection
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; CHECK: fma3_select231:
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; CHECK: vfmadd231ss
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define float @fma3_select231(float %x, float %y, i32 %N) #0 {
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; CHECK: fma3_select231ssX:
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; CHECK: 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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@ -57,6 +57,24 @@ 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: 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) #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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