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https://github.com/c64scene-ar/llvm-6502.git
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362090adf5
Confusingly, the NEON fmla instructions put the accumulator first but the scalar versions put it at the end (like the fma lib function & LLVM's intrinsic). This should fix PR19345, assuming there's only one issue. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205758 91177308-0d34-0410-b5e6-96231b3b80d8
93 lines
2.7 KiB
LLVM
93 lines
2.7 KiB
LLVM
; RUN: llc -march=arm64 < %s | FileCheck %s
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define float @fma32(float %a, float %b, float %c) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: fma32:
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; CHECK: fmadd s0, s0, s1, s2
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%0 = tail call float @llvm.fma.f32(float %a, float %b, float %c)
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ret float %0
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}
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define float @fnma32(float %a, float %b, float %c) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: fnma32:
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; CHECK: fnmadd s0, s0, s1, s2
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%0 = tail call float @llvm.fma.f32(float %a, float %b, float %c)
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%mul = fmul float %0, -1.000000e+00
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ret float %mul
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}
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define float @fms32(float %a, float %b, float %c) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: fms32:
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; CHECK: fmsub s0, s0, s1, s2
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%mul = fmul float %b, -1.000000e+00
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%0 = tail call float @llvm.fma.f32(float %a, float %mul, float %c)
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ret float %0
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}
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define float @fms32_com(float %a, float %b, float %c) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: fms32_com:
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; CHECK: fmsub s0, s1, s0, s2
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%mul = fmul float %b, -1.000000e+00
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%0 = tail call float @llvm.fma.f32(float %mul, float %a, float %c)
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ret float %0
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}
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define float @fnms32(float %a, float %b, float %c) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: fnms32:
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; CHECK: fnmsub s0, s0, s1, s2
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%mul = fmul float %c, -1.000000e+00
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%0 = tail call float @llvm.fma.f32(float %a, float %b, float %mul)
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ret float %0
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}
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define double @fma64(double %a, double %b, double %c) nounwind readnone ssp {
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; CHECK-LABEL: fma64:
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; CHECK: fmadd d0, d0, d1, d2
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entry:
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%0 = tail call double @llvm.fma.f64(double %a, double %b, double %c)
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ret double %0
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}
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define double @fnma64(double %a, double %b, double %c) nounwind readnone ssp {
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; CHECK-LABEL: fnma64:
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; CHECK: fnmadd d0, d0, d1, d2
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entry:
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%0 = tail call double @llvm.fma.f64(double %a, double %b, double %c)
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%mul = fmul double %0, -1.000000e+00
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ret double %mul
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}
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define double @fms64(double %a, double %b, double %c) nounwind readnone ssp {
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; CHECK-LABEL: fms64:
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; CHECK: fmsub d0, d0, d1, d2
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entry:
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%mul = fmul double %b, -1.000000e+00
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%0 = tail call double @llvm.fma.f64(double %a, double %mul, double %c)
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ret double %0
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}
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define double @fms64_com(double %a, double %b, double %c) nounwind readnone ssp {
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; CHECK-LABEL: fms64_com:
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; CHECK: fmsub d0, d1, d0, d2
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entry:
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%mul = fmul double %b, -1.000000e+00
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%0 = tail call double @llvm.fma.f64(double %mul, double %a, double %c)
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ret double %0
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}
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define double @fnms64(double %a, double %b, double %c) nounwind readnone ssp {
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; CHECK-LABEL: fnms64:
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; CHECK: fnmsub d0, d0, d1, d2
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entry:
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%mul = fmul double %c, -1.000000e+00
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%0 = tail call double @llvm.fma.f64(double %a, double %b, double %mul)
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ret double %0
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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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