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; RUN: llc < %s -mtriple=i386-apple-darwin10 -mattr=+fma,-fma4 | FileCheck %s --check-prefix=CHECK-FMA-INST
; RUN: llc < %s -mtriple=i386-apple-darwin10 -mattr=-fma,-fma4 | FileCheck %s --check-prefix=CHECK-FMA-CALL
; RUN: llc < %s -mtriple=x86_64-apple-darwin10 -mattr=+fma,-fma4 | FileCheck %s --check-prefix=CHECK-FMA-INST
; RUN: llc < %s -mtriple=x86_64-apple-darwin10 -mattr=-fma,-fma4 | FileCheck %s --check-prefix=CHECK-FMA-CALL
; RUN: llc < %s -march=x86 -mcpu=bdver2 -mattr=-fma4 | FileCheck %s --check-prefix=CHECK-FMA-INST
; RUN: llc < %s -march=x86 -mcpu=bdver2 -mattr=-fma,-fma4 | FileCheck %s --check-prefix=CHECK-FMA-CALL
; CHECK: test_f32
; CHECK-FMA-INST: vfmadd213ss
; CHECK-FMA-CALL: fmaf
define float @test_f32(float %a, float %b, float %c) nounwind readnone ssp {
entry:
%call = tail call float @llvm.fma.f32(float %a, float %b, float %c) nounwind readnone
ret float %call
}
; CHECK: test_f64
; CHECK-FMA-INST: vfmadd213sd
; CHECK-FMA-CALL: fma
define double @test_f64(double %a, double %b, double %c) nounwind readnone ssp {
entry:
%call = tail call double @llvm.fma.f64(double %a, double %b, double %c) nounwind readnone
ret double %call
}
; CHECK: test_f80
; CHECK: fmal
define x86_fp80 @test_f80(x86_fp80 %a, x86_fp80 %b, x86_fp80 %c) nounwind readnone ssp {
entry:
%call = tail call x86_fp80 @llvm.fma.f80(x86_fp80 %a, x86_fp80 %b, x86_fp80 %c) nounwind readnone
ret x86_fp80 %call
}
; CHECK: test_f32_cst
; CHECK-NOT: fma
define float @test_f32_cst() nounwind readnone ssp {
entry:
%call = tail call float @llvm.fma.f32(float 3.0, float 3.0, float 3.0) nounwind readnone
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
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