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llvm-project/llvm/test/Transforms/GlobalOpt/zeroinitializer-gep-load.ll

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GlobalOpt: If we have an inbounds GEP from a ConstantAggregateZero global that we just determined to be constant, replace all loads from it with a zero value. llvm-svn: 153576
2012-03-28 22:50:09 +08:00
; RUN: opt < %s -S -globalopt | FileCheck %s
@zero = internal global [10 x i32] zeroinitializer
define i32 @test1(i64 %idx) nounwind {
%arrayidx = getelementptr inbounds [10 x i32]* @zero, i64 0, i64 %idx
%l = load i32* %arrayidx
ret i32 %l
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: @test1(
GlobalOpt: If we have an inbounds GEP from a ConstantAggregateZero global that we just determined to be constant, replace all loads from it with a zero value. llvm-svn: 153576
2012-03-28 22:50:09 +08:00
; CHECK: ret i32 0
}