70 lines
2.5 KiB
LLVM
70 lines
2.5 KiB
LLVM
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; RUN: opt -S -passes=objc-arc,objc-arc-contract < %s | FileCheck %s
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
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declare ptr @llvm.objc.unretainedObject(ptr)
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declare ptr @llvm.objc.retainAutoreleasedReturnValue(ptr)
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declare ptr @llvm.objc.autoreleaseReturnValue(ptr)
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declare ptr @objc_msgSend(ptr, ptr, ...)
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declare void @llvm.objc.release(ptr)
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; Test that the optimizer can create an objc_retainAutoreleaseReturnValue
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; declaration even if no objc_retain declaration exists.
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; rdar://9401303
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; CHECK: define ptr @test0(ptr %p) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: %0 = tail call ptr @llvm.objc.retainAutoreleaseReturnValue(ptr %p) [[NUW:#[0-9]+]]
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; CHECK-NEXT: ret ptr %0
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; CHECK-NEXT: }
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define ptr @test0(ptr %p) {
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entry:
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%call = tail call ptr @llvm.objc.unretainedObject(ptr %p)
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%0 = tail call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %call) nounwind
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%1 = tail call ptr @llvm.objc.autoreleaseReturnValue(ptr %call) nounwind
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ret ptr %call
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}
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; Properly create the @llvm.objc.retain declaration when it doesn't already exist.
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; rdar://9825114
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; CHECK-LABEL: @test1(
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; CHECK: @llvm.objc.retain
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; CHECK: @llvm.objc.retainAutoreleasedReturnValue(
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; CHECK: @llvm.objc.release
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; CHECK: @llvm.objc.release
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; CHECK: }
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define void @test1(ptr %call88) nounwind personality ptr @__gxx_personality_v0 {
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entry:
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%tmp1 = call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %call88) nounwind
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%call94 = invoke ptr @objc_msgSend(ptr %tmp1)
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to label %invoke.cont93 unwind label %lpad91
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invoke.cont93: ; preds = %entry
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%tmp2 = call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %call94) nounwind
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call void @llvm.objc.release(ptr %tmp1) nounwind
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invoke void @objc_msgSend(ptr %tmp2)
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to label %invoke.cont102 unwind label %lpad100
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invoke.cont102: ; preds = %invoke.cont93
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call void @llvm.objc.release(ptr %tmp2) nounwind, !clang.imprecise_release !0
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unreachable
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lpad91: ; preds = %entry
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%exn91 = landingpad {ptr, i32}
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cleanup
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unreachable
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lpad100: ; preds = %invoke.cont93
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%exn100 = landingpad {ptr, i32}
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cleanup
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call void @llvm.objc.release(ptr %tmp2) nounwind, !clang.imprecise_release !0
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unreachable
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}
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declare i32 @__gxx_personality_v0(...)
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!0 = !{}
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; CHECK: attributes [[NUW]] = { nounwind }
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