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llvm-svn: 186280
225 lines
6.5 KiB
LLVM
225 lines
6.5 KiB
LLVM
; RUN: llc < %s -mtriple=armv7-eabi -mattr=+neon,+vfp4 -fp-contract=fast | FileCheck %s
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; Check generated fused MAC and MLS.
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define double @fusedMACTest1(double %d1, double %d2, double %d3) {
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;CHECK-LABEL: fusedMACTest1:
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;CHECK: vfma.f64
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%1 = fmul double %d1, %d2
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%2 = fadd double %1, %d3
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ret double %2
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}
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define float @fusedMACTest2(float %f1, float %f2, float %f3) {
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;CHECK-LABEL: fusedMACTest2:
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;CHECK: vfma.f32
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%1 = fmul float %f1, %f2
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%2 = fadd float %1, %f3
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ret float %2
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}
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define double @fusedMACTest3(double %d1, double %d2, double %d3) {
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;CHECK-LABEL: fusedMACTest3:
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;CHECK: vfms.f64
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%1 = fmul double %d2, %d3
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%2 = fsub double %d1, %1
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ret double %2
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}
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define float @fusedMACTest4(float %f1, float %f2, float %f3) {
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;CHECK-LABEL: fusedMACTest4:
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;CHECK: vfms.f32
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%1 = fmul float %f2, %f3
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%2 = fsub float %f1, %1
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ret float %2
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}
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define double @fusedMACTest5(double %d1, double %d2, double %d3) {
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;CHECK-LABEL: fusedMACTest5:
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;CHECK: vfnma.f64
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%1 = fmul double %d1, %d2
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%2 = fsub double -0.0, %1
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%3 = fsub double %2, %d3
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ret double %3
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}
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define float @fusedMACTest6(float %f1, float %f2, float %f3) {
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;CHECK-LABEL: fusedMACTest6:
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;CHECK: vfnma.f32
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%1 = fmul float %f1, %f2
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%2 = fsub float -0.0, %1
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%3 = fsub float %2, %f3
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ret float %3
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}
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define double @fusedMACTest7(double %d1, double %d2, double %d3) {
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;CHECK-LABEL: fusedMACTest7:
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;CHECK: vfnms.f64
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%1 = fmul double %d1, %d2
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%2 = fsub double %1, %d3
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ret double %2
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}
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define float @fusedMACTest8(float %f1, float %f2, float %f3) {
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;CHECK-LABEL: fusedMACTest8:
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;CHECK: vfnms.f32
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%1 = fmul float %f1, %f2
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%2 = fsub float %1, %f3
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ret float %2
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}
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define <2 x float> @fusedMACTest9(<2 x float> %a, <2 x float> %b) {
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;CHECK-LABEL: fusedMACTest9:
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;CHECK: vfma.f32
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%mul = fmul <2 x float> %a, %b
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%add = fadd <2 x float> %mul, %a
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ret <2 x float> %add
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}
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define <2 x float> @fusedMACTest10(<2 x float> %a, <2 x float> %b) {
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;CHECK-LABEL: fusedMACTest10:
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;CHECK: vfms.f32
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%mul = fmul <2 x float> %a, %b
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%sub = fsub <2 x float> %a, %mul
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ret <2 x float> %sub
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}
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define <4 x float> @fusedMACTest11(<4 x float> %a, <4 x float> %b) {
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;CHECK-LABEL: fusedMACTest11:
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;CHECK: vfma.f32
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%mul = fmul <4 x float> %a, %b
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%add = fadd <4 x float> %mul, %a
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ret <4 x float> %add
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}
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define <4 x float> @fusedMACTest12(<4 x float> %a, <4 x float> %b) {
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;CHECK-LABEL: fusedMACTest12:
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;CHECK: vfms.f32
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%mul = fmul <4 x float> %a, %b
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%sub = fsub <4 x float> %a, %mul
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ret <4 x float> %sub
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}
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define float @test_fma_f32(float %a, float %b, float %c) nounwind readnone ssp {
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entry:
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; CHECK: test_fma_f32
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; CHECK: vfma.f32
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%tmp1 = tail call float @llvm.fma.f32(float %a, float %b, float %c) nounwind readnone
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ret float %tmp1
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}
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define double @test_fma_f64(double %a, double %b, double %c) nounwind readnone ssp {
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entry:
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; CHECK: test_fma_f64
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; CHECK: vfma.f64
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%tmp1 = tail call double @llvm.fma.f64(double %a, double %b, double %c) nounwind readnone
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ret double %tmp1
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}
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define <2 x float> @test_fma_v2f32(<2 x float> %a, <2 x float> %b, <2 x float> %c) nounwind readnone ssp {
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entry:
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; CHECK: test_fma_v2f32
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; CHECK: vfma.f32
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%tmp1 = tail call <2 x float> @llvm.fma.v2f32(<2 x float> %a, <2 x float> %b, <2 x float> %c) nounwind
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ret <2 x float> %tmp1
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}
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define double @test_fms_f64(double %a, double %b, double %c) nounwind readnone ssp {
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entry:
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; CHECK: test_fms_f64
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; CHECK: vfms.f64
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%tmp1 = fsub double -0.0, %a
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%tmp2 = tail call double @llvm.fma.f64(double %tmp1, double %b, double %c) nounwind readnone
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ret double %tmp2
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}
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define double @test_fms_f64_2(double %a, double %b, double %c) nounwind readnone ssp {
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entry:
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; CHECK: test_fms_f64_2
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; CHECK: vfms.f64
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%tmp1 = fsub double -0.0, %b
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%tmp2 = tail call double @llvm.fma.f64(double %a, double %tmp1, double %c) nounwind readnone
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ret double %tmp2
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}
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define float @test_fnms_f32(float %a, float %b, float* %c) nounwind readnone ssp {
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; CHECK: test_fnms_f32
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; CHECK: vfnms.f32
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%tmp1 = load float* %c, align 4
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%tmp2 = fsub float -0.0, %tmp1
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%tmp3 = tail call float @llvm.fma.f32(float %a, float %b, float %tmp2) nounwind readnone
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ret float %tmp3
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}
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define double @test_fnms_f64(double %a, double %b, double %c) nounwind readnone ssp {
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entry:
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; CHECK: test_fnms_f64
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; CHECK: vfnms.f64
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%tmp1 = fsub double -0.0, %a
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%tmp2 = tail call double @llvm.fma.f64(double %tmp1, double %b, double %c) nounwind readnone
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%tmp3 = fsub double -0.0, %tmp2
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ret double %tmp3
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}
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define double @test_fnms_f64_2(double %a, double %b, double %c) nounwind readnone ssp {
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entry:
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; CHECK: test_fnms_f64_2
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; CHECK: vfnms.f64
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%tmp1 = fsub double -0.0, %b
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%tmp2 = tail call double @llvm.fma.f64(double %a, double %tmp1, double %c) nounwind readnone
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%tmp3 = fsub double -0.0, %tmp2
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ret double %tmp3
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}
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define double @test_fnma_f64(double %a, double %b, double %c) nounwind readnone ssp {
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entry:
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; CHECK: test_fnma_f64
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; CHECK: vfnma.f64
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%tmp1 = tail call double @llvm.fma.f64(double %a, double %b, double %c) nounwind readnone
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%tmp2 = fsub double -0.0, %tmp1
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ret double %tmp2
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}
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define double @test_fnma_f64_2(double %a, double %b, double %c) nounwind readnone ssp {
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entry:
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; CHECK: test_fnma_f64_2
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; CHECK: vfnma.f64
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%tmp1 = fsub double -0.0, %a
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%tmp2 = fsub double -0.0, %c
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%tmp3 = tail call double @llvm.fma.f64(double %tmp1, double %b, double %tmp2) nounwind readnone
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ret double %tmp3
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}
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define float @test_fma_const_fold(float %a, float %b) nounwind {
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; CHECK: test_fma_const_fold
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; CHECK-NOT: vfma
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; CHECK-NOT: vmul
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; CHECK: vadd
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%ret = call float @llvm.fma.f32(float %a, float 1.0, float %b)
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ret float %ret
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}
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define float @test_fma_canonicalize(float %a, float %b) nounwind {
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; CHECK: test_fma_canonicalize
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; CHECK: vmov.f32 [[R1:s[0-9]+]], #2.000000e+00
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; CHECK: vfma.f32 {{s[0-9]+}}, {{s[0-9]+}}, [[R1]]
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%ret = call float @llvm.fma.f32(float 2.0, float %a, float %b)
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ret float %ret
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}
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; Check that very wide vector fma's can be split into legal fma's.
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define void @test_fma_v8f32(<8 x float> %a, <8 x float> %b, <8 x float> %c, <8 x float>* %p) nounwind readnone ssp {
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; CHECK: test_fma_v8f32
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; CHECK: vfma.f32
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; CHECK: vfma.f32
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entry:
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%call = tail call <8 x float> @llvm.fma.v8f32(<8 x float> %a, <8 x float> %b, <8 x float> %c) nounwind readnone
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store <8 x float> %call, <8 x float>* %p, align 16
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ret void
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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 <2 x float> @llvm.fma.v2f32(<2 x float>, <2 x float>, <2 x float>) nounwind readnone
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declare <8 x float> @llvm.fma.v8f32(<8 x float>, <8 x float>, <8 x float>) nounwind readnone
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