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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
21 lines
654 B
LLVM
21 lines
654 B
LLVM
; RUN: llc < %s | FileCheck %s
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; Check that the shr(shl X, 56), 48) is not mistakenly turned into
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; a shr (X, -8) that gets subsequently "optimized away" as undef
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; PR4254
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
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target triple = "x86_64-unknown-linux-gnu"
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define i64 @foo(i64 %b) nounwind readnone {
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entry:
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; CHECK-LABEL: foo:
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; CHECK: shlq $56, %rdi
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; CHECK: sarq $48, %rdi
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; CHECK: leaq 1(%rdi), %rax
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%shl = shl i64 %b, 56 ; <i64> [#uses=1]
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%shr = ashr i64 %shl, 48 ; <i64> [#uses=1]
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%add5 = or i64 %shr, 1 ; <i64> [#uses=1]
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ret i64 %add5
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}
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