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llvm-mirror/test/Transforms/GlobalOpt/cleanup-pointer-root-users.ll

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Teach globalopt to not nuke all stores to globals. Keep them around of they might be deliberate "one time" leaks, so that leak checkers can find them. This is a reapply of r160602 with the fix that this time I'm committing the code I thought I was committing last time; the I->eraseFromParent() goes *after* the break out of the loop. llvm-svn: 160664
2012-07-24 09:21:08 +02:00
; RUN: opt -globalopt -S -o - < %s | FileCheck %s
Add testcases for GlobalOpt changes in r160693 and r160757. llvm-svn: 160925
2012-07-29 03:15:37 +02:00
@glbl = internal global i8* null
Teach globalopt to not nuke all stores to globals. Keep them around of they might be deliberate "one time" leaks, so that leak checkers can find them. This is a reapply of r160602 with the fix that this time I'm committing the code I thought I was committing last time; the I->eraseFromParent() goes *after* the break out of the loop. llvm-svn: 160664
2012-07-24 09:21:08 +02:00
define void @test1a() {
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 $NAME fi done llvm-svn: 186268
2013-07-14 03:42:54 +02:00
; CHECK-LABEL: @test1a(
Teach globalopt to not nuke all stores to globals. Keep them around of they might be deliberate "one time" leaks, so that leak checkers can find them. This is a reapply of r160602 with the fix that this time I'm committing the code I thought I was committing last time; the I->eraseFromParent() goes *after* the break out of the loop. llvm-svn: 160664
2012-07-24 09:21:08 +02:00
; CHECK-NOT: store
; CHECK-NEXT: ret void
Add testcases for GlobalOpt changes in r160693 and r160757. llvm-svn: 160925
2012-07-29 03:15:37 +02:00
store i8* null, i8** @glbl
Teach globalopt to not nuke all stores to globals. Keep them around of they might be deliberate "one time" leaks, so that leak checkers can find them. This is a reapply of r160602 with the fix that this time I'm committing the code I thought I was committing last time; the I->eraseFromParent() goes *after* the break out of the loop. llvm-svn: 160664
2012-07-24 09:21:08 +02:00
ret void
}
define void @test1b(i8* %p) {
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. This update was done with the following bash script: find test/Transforms -name "*.ll" | \ while read NAME; do echo "$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 $NAME fi done llvm-svn: 186268
2013-07-14 03:42:54 +02:00
; CHECK-LABEL: @test1b(
Teach globalopt to not nuke all stores to globals. Keep them around of they might be deliberate "one time" leaks, so that leak checkers can find them. This is a reapply of r160602 with the fix that this time I'm committing the code I thought I was committing last time; the I->eraseFromParent() goes *after* the break out of the loop. llvm-svn: 160664
2012-07-24 09:21:08 +02:00
; CHECK-NEXT: store
; CHECK-NEXT: ret void
Add testcases for GlobalOpt changes in r160693 and r160757. llvm-svn: 160925
2012-07-29 03:15:37 +02:00
store i8* %p, i8** @glbl
Teach globalopt to not nuke all stores to globals. Keep them around of they might be deliberate "one time" leaks, so that leak checkers can find them. This is a reapply of r160602 with the fix that this time I'm committing the code I thought I was committing last time; the I->eraseFromParent() goes *after* the break out of the loop. llvm-svn: 160664
2012-07-24 09:21:08 +02:00
ret void
}
Add testcases for GlobalOpt changes in r160693 and r160757. llvm-svn: 160925
2012-07-29 03:15:37 +02:00
define void @test2() {
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. This update was done with the following bash script: find test/Transforms -name "*.ll" | \ while read NAME; do echo "$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 $NAME fi done llvm-svn: 186268
2013-07-14 03:42:54 +02:00
; CHECK-LABEL: @test2(
Add testcases for GlobalOpt changes in r160693 and r160757. llvm-svn: 160925
2012-07-29 03:15:37 +02:00
; CHECK: alloca i8
%txt = alloca i8
call void @foo2(i8* %txt)
%call2 = call i8* @strdup(i8* %txt)
store i8* %call2, i8** @glbl
ret void
}
declare i8* @strdup(i8*)
declare void @foo2(i8*)
define void @test3() uwtable {
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. This update was done with the following bash script: find test/Transforms -name "*.ll" | \ while read NAME; do echo "$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 03:42:54 +02:00
; CHECK-LABEL: @test3(
Add testcases for GlobalOpt changes in r160693 and r160757. llvm-svn: 160925
2012-07-29 03:15:37 +02:00
; CHECK-NOT: bb1:
; CHECK-NOT: bb2:
; CHECK: invoke
%ptr = invoke i8* @_Znwm(i64 1)
to label %bb1 unwind label %bb2
bb1:
store i8* %ptr, i8** @glbl
unreachable
bb2:
%tmp1 = landingpad { i8*, i32 } personality i32 (i32, i64, i8*, i8*)* @__gxx_personality_v0
cleanup
resume { i8*, i32 } %tmp1
}
declare i32 @__gxx_personality_v0(i32, i64, i8*, i8*)
declare i8* @_Znwm(i64)
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