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49 lines
1.2 KiB
LLVM
49 lines
1.2 KiB
LLVM
; RUN: opt -S -objc-arc < %s | FileCheck %s
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declare void @use_pointer(i8*)
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declare i8* @returner()
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declare i8* @objc_retain(i8*)
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declare i8* @objc_autoreleaseReturnValue(i8*)
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declare i8* @objc_retainAutoreleasedReturnValue(i8*)
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; Clean up residue left behind after inlining.
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; CHECK: define void @test0(
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; CHECK: entry:
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; CHECK-NEXT: ret void
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; CHECK-NEXT: }
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define void @test0(i8* %call.i) {
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entry:
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%0 = tail call i8* @objc_retain(i8* %call.i) nounwind
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%1 = tail call i8* @objc_autoreleaseReturnValue(i8* %0) nounwind
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ret void
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}
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; Same as test0, but with slightly different use arrangements.
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; CHECK: define void @test1(
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; CHECK: entry:
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; CHECK-NEXT: ret void
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; CHECK-NEXT: }
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define void @test1(i8* %call.i) {
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entry:
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%0 = tail call i8* @objc_retain(i8* %call.i) nounwind
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%1 = tail call i8* @objc_autoreleaseReturnValue(i8* %call.i) nounwind
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ret void
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}
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; Delete a retainRV+autoreleaseRV even if the pointer is used.
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; CHECK: define void @test24(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: call void @use_pointer(i8* %p)
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; CHECK-NEXT: ret void
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; CHECK-NEXT: }
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define void @test24(i8* %p) {
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entry:
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call i8* @objc_autoreleaseReturnValue(i8* %p) nounwind
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call i8* @objc_retainAutoreleasedReturnValue(i8* %p) nounwind
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call void @use_pointer(i8* %p)
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ret void
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}
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