42 lines
1.4 KiB
LLVM
42 lines
1.4 KiB
LLVM
; RUN: opt -passes=objc-arc -S %s | FileCheck %s
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%0 = type opaque
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; Make sure ARC optimizer doesn't sink @obj_retain past @llvm.objc.clang.arc.use.
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; CHECK: call ptr @llvm.objc.retain
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; CHECK: call void (...) @llvm.objc.clang.arc.use(
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; CHECK: call ptr @llvm.objc.retain
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; CHECK: call void (...) @llvm.objc.clang.arc.use(
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define void @runTest() local_unnamed_addr {
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%1 = alloca ptr, align 8
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%2 = alloca ptr, align 8
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%3 = tail call ptr @foo0()
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%4 = tail call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %3)
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store ptr %3, ptr %1, align 8
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call void @foo1(ptr nonnull %1)
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%5 = load ptr, ptr %1, align 8
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%6 = call ptr @llvm.objc.retain(ptr %5)
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call void (...) @llvm.objc.clang.arc.use(ptr %3)
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call void @llvm.objc.release(ptr %3)
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store ptr %5, ptr %2, align 8
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call void @foo1(ptr nonnull %2)
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%7 = load ptr, ptr %2, align 8
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%8 = call ptr @llvm.objc.retain(ptr %7)
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call void (...) @llvm.objc.clang.arc.use(ptr %5)
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%tmp1 = load ptr, ptr %2, align 8
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call void @llvm.objc.release(ptr %5)
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call void @foo2(ptr %7)
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call void @llvm.objc.release(ptr %7)
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ret void
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}
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declare ptr @foo0() local_unnamed_addr
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declare void @foo1(ptr) local_unnamed_addr
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declare void @foo2(ptr) local_unnamed_addr
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declare ptr @llvm.objc.retainAutoreleasedReturnValue(ptr) local_unnamed_addr
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declare ptr @llvm.objc.retain(ptr) local_unnamed_addr
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declare void @llvm.objc.clang.arc.use(...) local_unnamed_addr
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declare void @llvm.objc.release(ptr) local_unnamed_addr
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