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llvm-project/llvm/test/Transforms/Reassociate/absorption.ll

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It is possible for several constants which aren't individually absorbing to combine to the absorbing element. Thanks to nbjoerg on IRC for pointing this out. llvm-svn: 158399
2012-06-13 20:15:56 +08:00
; RUN: opt -S -reassociate < %s | FileCheck %s
; Check that if constants combine to an absorbing value then the expression is
; evaluated as the absorbing value.
define i8 @foo(i8 %x) {
%tmp1 = or i8 %x, 127
%tmp2 = or i8 %tmp1, 128
ret i8 %tmp2
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 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 llvm-svn: 186268
2013-07-14 09:42:54 +08:00
; CHECK-LABEL: @foo(
It is possible for several constants which aren't individually absorbing to combine to the absorbing element. Thanks to nbjoerg on IRC for pointing this out. llvm-svn: 158399
2012-06-13 20:15:56 +08:00
; CHECK: ret i8 -1
}