01e4f41b43
escape.ll needed a simple manual check line update. contract-storestrong.ll:test12 is kind of contrived now. The comment says it's for testing bitcasts of pointers, which don't really matter anymore. Leaves identity ptr to ptr bitcasts (which I thought were illegal).
62 lines
1.9 KiB
LLVM
62 lines
1.9 KiB
LLVM
; RUN: opt -S -passes=objc-arc-contract < %s | FileCheck %s
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; CHECK-LABEL: define void @foo() {
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; CHECK: %call = tail call ptr @qux()
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; CHECK-NEXT: call void asm sideeffect "mov\09r7, r7\09\09@ marker for return value optimization", ""()
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; CHECK-NEXT: %0 = tail call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %call) [[NUW:#[0-9]+]]
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; CHECK: }
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define void @foo() {
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entry:
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%call = tail call ptr @qux()
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%0 = tail call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %call) nounwind
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tail call void @bar(ptr %0)
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ret void
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}
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; CHECK-LABEL: define void @foo2() {
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; CHECK: %call = tail call ptr @qux()
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; CHECK-NEXT: call void asm sideeffect "mov\09r7, r7\09\09@ marker for return value optimization", ""()
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; CHECK-NEXT: %0 = tail call ptr @llvm.objc.unsafeClaimAutoreleasedReturnValue(ptr %call) [[NUW:#[0-9]+]]
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; CHECK: }
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define void @foo2() {
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entry:
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%call = tail call ptr @qux()
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%0 = tail call ptr @llvm.objc.unsafeClaimAutoreleasedReturnValue(ptr %call) nounwind
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tail call void @bar(ptr %0)
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ret void
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}
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; CHECK-LABEL: define ptr @foo3(
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; CHECK: call ptr @returnsArg(
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; CHECK-NEXT: call void asm sideeffect
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define ptr @foo3(ptr %a) {
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%call = call ptr @returnsArg(ptr %a)
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call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %call)
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ret ptr %call
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}
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; CHECK-LABEL: define ptr @foo4(
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; CHECK: call ptr @returnsArg(
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; CHECK-NEXT: call void asm sideeffect
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define ptr @foo4(ptr %a) {
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%call = call ptr @returnsArg(ptr %a)
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call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %a)
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ret ptr %call
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}
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declare ptr @qux()
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declare ptr @llvm.objc.retainAutoreleasedReturnValue(ptr)
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declare ptr @llvm.objc.unsafeClaimAutoreleasedReturnValue(ptr)
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declare void @bar(ptr)
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declare ptr @returnsArg(ptr returned)
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!llvm.module.flags = !{!0}
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!0 = !{i32 1, !"clang.arc.retainAutoreleasedReturnValueMarker", !"mov\09r7, r7\09\09@ marker for return value optimization"}
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; CHECK: attributes [[NUW]] = { nounwind }
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