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https://github.com/c64scene-ar/llvm-6502.git
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8b2b8a1835
This update was done with the following bash script:
find test/CodeGen -name "*.ll" | \
while read NAME; do
echo "$NAME"
if ! grep -q "^; *RUN: *llc.*debug" $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
sed -i '' "s/;\(.*\)-LABEL-LABEL:/;\1-LABEL:/" $TEMP
sed -i '' "s/;\(.*\)-NEXT-LABEL:/;\1-NEXT:/" $TEMP
sed -i '' "s/;\(.*\)-NOT-LABEL:/;\1-NOT:/" $TEMP
sed -i '' "s/;\(.*\)-DAG-LABEL:/;\1-DAG:/" $TEMP
mv $TEMP $NAME
fi
done
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186280 91177308-0d34-0410-b5e6-96231b3b80d8
34 lines
1.1 KiB
LLVM
34 lines
1.1 KiB
LLVM
; RUN: llc < %s -mtriple=thumbv7-apple-ios -mcpu=cortex-a8 | FileCheck %s
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; ARM has a peephole optimization which looks for a def / use pair. The def
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; produces a 32-bit immediate which is consumed by the use. It tries to
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; fold the immediate by breaking it into two parts and fold them into the
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; immmediate fields of two uses. e.g
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; movw r2, #40885
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; movt r3, #46540
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; add r0, r0, r3
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; =>
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; add.w r0, r0, #3019898880
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; add.w r0, r0, #30146560
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;
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; However, this transformation is incorrect if the user produces a flag. e.g.
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; movw r2, #40885
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; movt r3, #46540
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; adds r0, r0, r3
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; =>
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; add.w r0, r0, #3019898880
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; adds.w r0, r0, #30146560
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; Note the adds.w may not set the carry flag even if the original sequence
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; would.
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;
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; rdar://11116189
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define i64 @t(i64 %aInput) nounwind {
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; CHECK-LABEL: t:
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; CHECK: movs [[REG:(r[0-9]+)]], #0
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; CHECK: movt [[REG]], #46540
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; CHECK: adds r{{[0-9]+}}, r{{[0-9]+}}, [[REG]]
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%1 = mul i64 %aInput, 1000000
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%2 = add i64 %1, -7952618389194932224
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ret i64 %2
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}
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