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