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f20746afd1
This conversion 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/;\(.*\)\([A-Za-z0-9_]*\):\( *\)define\([^@]*\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3define\4@$FUNC(/g" $TEMP
done
mv $TEMP $NAME
fi
done
llvm-svn: 186269
175 lines
5.5 KiB
LLVM
175 lines
5.5 KiB
LLVM
; RUN: opt -objc-arc-contract -S < %s | FileCheck %s
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target datalayout = "e-p:64:64:64"
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declare i8* @objc_retain(i8*)
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declare void @objc_release(i8*)
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declare void @use_pointer(i8*)
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@x = external global i8*
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; CHECK-LABEL: define void @test0(
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; CHECK: entry:
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; CHECK-NEXT: tail call void @objc_storeStrong(i8** @x, i8* %p) [[NUW:#[0-9]+]]
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; CHECK-NEXT: ret void
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; CHECK-NEXT: }
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define void @test0(i8* %p) {
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entry:
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%0 = tail call i8* @objc_retain(i8* %p) nounwind
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%tmp = load i8** @x, align 8
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store i8* %0, i8** @x, align 8
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tail call void @objc_release(i8* %tmp) nounwind
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ret void
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}
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; Don't do this if the load is volatile.
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; CHECK: define void @test1(i8* %p) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: %0 = tail call i8* @objc_retain(i8* %p) [[NUW]]
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; CHECK-NEXT: %tmp = load volatile i8** @x, align 8
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; CHECK-NEXT: store i8* %0, i8** @x, align 8
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; CHECK-NEXT: tail call void @objc_release(i8* %tmp) [[NUW]]
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; CHECK-NEXT: ret void
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; CHECK-NEXT: }
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define void @test1(i8* %p) {
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entry:
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%0 = tail call i8* @objc_retain(i8* %p) nounwind
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%tmp = load volatile i8** @x, align 8
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store i8* %0, i8** @x, align 8
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tail call void @objc_release(i8* %tmp) nounwind
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ret void
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}
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; Don't do this if the store is volatile.
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; CHECK: define void @test2(i8* %p) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: %0 = tail call i8* @objc_retain(i8* %p) [[NUW]]
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; CHECK-NEXT: %tmp = load i8** @x, align 8
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; CHECK-NEXT: store volatile i8* %0, i8** @x, align 8
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; CHECK-NEXT: tail call void @objc_release(i8* %tmp) [[NUW]]
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; CHECK-NEXT: ret void
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; CHECK-NEXT: }
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define void @test2(i8* %p) {
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entry:
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%0 = tail call i8* @objc_retain(i8* %p) nounwind
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%tmp = load i8** @x, align 8
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store volatile i8* %0, i8** @x, align 8
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tail call void @objc_release(i8* %tmp) nounwind
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ret void
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}
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; Don't do this if there's a use of the old pointer value between the store
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; and the release.
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; CHECK: define void @test3(i8* %newValue) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: %x0 = tail call i8* @objc_retain(i8* %newValue) [[NUW]]
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; CHECK-NEXT: %x1 = load i8** @x, align 8
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; CHECK-NEXT: store i8* %x0, i8** @x, align 8
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; CHECK-NEXT: tail call void @use_pointer(i8* %x1), !clang.arc.no_objc_arc_exceptions !0
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; CHECK-NEXT: tail call void @objc_release(i8* %x1) [[NUW]], !clang.imprecise_release !0
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; CHECK-NEXT: ret void
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; CHECK-NEXT: }
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define void @test3(i8* %newValue) {
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entry:
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%x0 = tail call i8* @objc_retain(i8* %newValue) nounwind
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%x1 = load i8** @x, align 8
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store i8* %newValue, i8** @x, align 8
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tail call void @use_pointer(i8* %x1), !clang.arc.no_objc_arc_exceptions !0
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tail call void @objc_release(i8* %x1) nounwind, !clang.imprecise_release !0
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ret void
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}
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; Like test3, but with an icmp use instead of a call, for good measure.
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; CHECK: define i1 @test4(i8* %newValue, i8* %foo) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: %x0 = tail call i8* @objc_retain(i8* %newValue) [[NUW]]
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; CHECK-NEXT: %x1 = load i8** @x, align 8
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; CHECK-NEXT: store i8* %x0, i8** @x, align 8
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; CHECK-NEXT: %t = icmp eq i8* %x1, %foo
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; CHECK-NEXT: tail call void @objc_release(i8* %x1) [[NUW]], !clang.imprecise_release !0
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; CHECK-NEXT: ret i1 %t
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; CHECK-NEXT: }
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define i1 @test4(i8* %newValue, i8* %foo) {
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entry:
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%x0 = tail call i8* @objc_retain(i8* %newValue) nounwind
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%x1 = load i8** @x, align 8
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store i8* %newValue, i8** @x, align 8
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%t = icmp eq i8* %x1, %foo
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tail call void @objc_release(i8* %x1) nounwind, !clang.imprecise_release !0
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ret i1 %t
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}
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; Do form an objc_storeStrong here, because the use is before the store.
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; CHECK: define i1 @test5(i8* %newValue, i8* %foo) {
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; CHECK: %t = icmp eq i8* %x1, %foo
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; CHECK: tail call void @objc_storeStrong(i8** @x, i8* %newValue) [[NUW]]
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; CHECK: }
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define i1 @test5(i8* %newValue, i8* %foo) {
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entry:
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%x0 = tail call i8* @objc_retain(i8* %newValue) nounwind
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%x1 = load i8** @x, align 8
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%t = icmp eq i8* %x1, %foo
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store i8* %newValue, i8** @x, align 8
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tail call void @objc_release(i8* %x1) nounwind, !clang.imprecise_release !0
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ret i1 %t
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}
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; Like test5, but the release is before the store.
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; CHECK: define i1 @test6(i8* %newValue, i8* %foo) {
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; CHECK: %t = icmp eq i8* %x1, %foo
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; CHECK: tail call void @objc_storeStrong(i8** @x, i8* %newValue) [[NUW]]
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; CHECK: }
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define i1 @test6(i8* %newValue, i8* %foo) {
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entry:
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%x0 = tail call i8* @objc_retain(i8* %newValue) nounwind
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%x1 = load i8** @x, align 8
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tail call void @objc_release(i8* %x1) nounwind, !clang.imprecise_release !0
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%t = icmp eq i8* %x1, %foo
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store i8* %newValue, i8** @x, align 8
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ret i1 %t
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}
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; Like test0, but there's no store, so don't form an objc_storeStrong.
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; CHECK-LABEL: define void @test7(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: %0 = tail call i8* @objc_retain(i8* %p) [[NUW]]
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; CHECK-NEXT: %tmp = load i8** @x, align 8
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; CHECK-NEXT: tail call void @objc_release(i8* %tmp) [[NUW]]
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; CHECK-NEXT: ret void
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; CHECK-NEXT: }
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define void @test7(i8* %p) {
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entry:
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%0 = tail call i8* @objc_retain(i8* %p) nounwind
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%tmp = load i8** @x, align 8
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tail call void @objc_release(i8* %tmp) nounwind
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ret void
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}
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; Like test0, but there's no retain, so don't form an objc_storeStrong.
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; CHECK-LABEL: define void @test8(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: %tmp = load i8** @x, align 8
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; CHECK-NEXT: store i8* %p, i8** @x, align 8
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; CHECK-NEXT: tail call void @objc_release(i8* %tmp) [[NUW]]
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; CHECK-NEXT: ret void
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; CHECK-NEXT: }
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define void @test8(i8* %p) {
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entry:
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%tmp = load i8** @x, align 8
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store i8* %p, i8** @x, align 8
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tail call void @objc_release(i8* %tmp) nounwind
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ret void
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}
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!0 = metadata !{}
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; CHECK: attributes [[NUW]] = { nounwind }
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