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llvm-project/llvm/test/CodeGen/X86/2012-05-17-TwoAddressBug.ll

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Teach two-address pass to update the "source" map so it doesn't perform a non-profitable commute using outdated info. The test case would still fail because of poor pre-RA schedule. That will be fixed by MI scheduler. rdar://11472010 llvm-svn: 157038
2012-05-18 09:33:51 +08:00
; RUN: llc < %s -mtriple=x86_64-apple-macosx -pre-RA-sched=source | FileCheck %s
; Teach two-address pass to update the "source" map so it doesn't perform a
; non-profitable commute using outdated info. The test case would still fail
; because of poor pre-RA schedule. That will be fixed by MI scheduler.
; rdar://11472010
define i32 @t(i32 %mask) nounwind readnone ssp {
entry:
Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally. 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 llvm-svn: 186280
2013-07-14 14:24:09 +08:00
; CHECK-LABEL: t:
Teach two-address pass to update the "source" map so it doesn't perform a non-profitable commute using outdated info. The test case would still fail because of poor pre-RA schedule. That will be fixed by MI scheduler. rdar://11472010 llvm-svn: 157038
2012-05-18 09:33:51 +08:00
; CHECK-NOT: mov
%sub = add i32 %mask, -65535
%shr = lshr i32 %sub, 23
%and = and i32 %mask, 1
%add = add i32 %shr, %and
ret i32 %add
}