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https://github.com/c64scene-ar/llvm-6502.git
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39f4e8d9cc
This update was done with the following bash script:
find test/Transforms -name "*.ll" | \
while read NAME; do
echo "$NAME"
if ! grep -q "^; *RUN: *llc" $NAME; then
TEMP=`mktemp -t temp`
cp $NAME $TEMP
sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \
while read FUNC; do
sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP
done
mv $TEMP $NAME
fi
done
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186268 91177308-0d34-0410-b5e6-96231b3b80d8
73 lines
1.8 KiB
LLVM
73 lines
1.8 KiB
LLVM
; RUN: opt -S -instcombine < %s | FileCheck %s
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; (-0.0 - X) * C => X * -C
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define float @test1(float %x) {
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%sub = fsub float -0.000000e+00, %x
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%mul = fmul float %sub, 2.0e+1
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ret float %mul
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; CHECK-LABEL: @test1(
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; CHECK: fmul float %x, -2.000000e+01
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}
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; (0.0 - X) * C => X * -C
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define float @test2(float %x) {
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%sub = fsub nsz float 0.000000e+00, %x
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%mul = fmul float %sub, 2.0e+1
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ret float %mul
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; CHECK-LABEL: @test2(
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; CHECK: fmul float %x, -2.000000e+01
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}
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; (-0.0 - X) * (-0.0 - Y) => X * Y
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define float @test3(float %x, float %y) {
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%sub1 = fsub float -0.000000e+00, %x
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%sub2 = fsub float -0.000000e+00, %y
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%mul = fmul float %sub1, %sub2
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ret float %mul
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; CHECK-LABEL: @test3(
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; CHECK: fmul float %x, %y
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}
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; (0.0 - X) * (0.0 - Y) => X * Y
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define float @test4(float %x, float %y) {
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%sub1 = fsub nsz float 0.000000e+00, %x
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%sub2 = fsub nsz float 0.000000e+00, %y
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%mul = fmul float %sub1, %sub2
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ret float %mul
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; CHECK-LABEL: @test4(
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; CHECK: fmul float %x, %y
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}
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; (-0.0 - X) * Y => -0.0 - (X * Y)
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define float @test5(float %x, float %y) {
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%sub1 = fsub float -0.000000e+00, %x
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%mul = fmul float %sub1, %y
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ret float %mul
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; CHECK-LABEL: @test5(
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; CHECK: %1 = fmul float %x, %y
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; CHECK: %mul = fsub float -0.000000e+00, %1
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}
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; (0.0 - X) * Y => 0.0 - (X * Y)
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define float @test6(float %x, float %y) {
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%sub1 = fsub nsz float 0.000000e+00, %x
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%mul = fmul float %sub1, %y
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ret float %mul
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; CHECK-LABEL: @test6(
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; CHECK: %1 = fmul float %x, %y
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; CHECK: %mul = fsub float -0.000000e+00, %1
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}
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; "(-0.0 - X) * Y => -0.0 - (X * Y)" is disabled if expression "-0.0 - X"
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; has multiple uses.
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define float @test7(float %x, float %y) {
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%sub1 = fsub float -0.000000e+00, %x
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%mul = fmul float %sub1, %y
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%mul2 = fmul float %mul, %sub1
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ret float %mul2
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; CHECK-LABEL: @test7(
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; CHECK: fsub float -0.000000e+00, %x
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}
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