diff options
Diffstat (limited to 'test/CodeGen/X86/fma.ll')
| -rw-r--r-- | test/CodeGen/X86/fma.ll | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/test/CodeGen/X86/fma.ll b/test/CodeGen/X86/fma.ll index 917eac0..47252ec 100644 --- a/test/CodeGen/X86/fma.ll +++ b/test/CodeGen/X86/fma.ll @@ -42,6 +42,39 @@ entry: ret float %call } +; Test FMA3 variant selection +; CHECK: fma3_select231ssX: +; CHECK: vfmadd231ss xmm +define float @fma3_select231ssX(float %x, float %y) #0 { +entry: + br label %while.body +while.body: ; preds = %while.body, %while.body + %acc.01 = phi float [ 0.000000e+00, %entry ], [ %acc, %while.body ] + %acc = tail call float @llvm.fma.f32(float %x, float %y, float %acc.01) nounwind readnone + %b = fcmp ueq float %acc, 0.0 + br i1 %b, label %while.body, label %while.end +while.end: ; preds = %while.body, %entry + ret float %acc +} + +; Test FMA3 variant selection +; CHECK: fma3_select231pdY: +; CHECK: vfmadd231pd ymm +define <4 x double> @fma3_select231pdY(<4 x double> %x, <4 x double> %y) #0 { +entry: + br label %while.body +while.body: ; preds = %entry, %while.body + %acc.04 = phi <4 x double> [ zeroinitializer, %entry ], [ %add, %while.body ] + %add = tail call <4 x double> @llvm.fma.v4f64(<4 x double> %x, <4 x double> %y, <4 x double> %acc.04) + %vecext = extractelement <4 x double> %add, i32 0 + %cmp = fcmp oeq double %vecext, 0.000000e+00 + br i1 %cmp, label %while.body, label %while.end + +while.end: ; preds = %while.body + ret <4 x double> %add +} + declare float @llvm.fma.f32(float, float, float) nounwind readnone declare double @llvm.fma.f64(double, double, double) nounwind readnone declare x86_fp80 @llvm.fma.f80(x86_fp80, x86_fp80, x86_fp80) nounwind readnone +declare <4 x double> @llvm.fma.v4f64(<4 x double>, <4 x double>, <4 x double>) nounwind readnone |