forked from OSchip/llvm-project
70 lines
2.5 KiB
LLVM
70 lines
2.5 KiB
LLVM
; RUN: opt -S -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 i8* @objc_unretainedObject(i8*)
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declare i8* @objc_retainAutoreleasedReturnValue(i8*)
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declare i8* @objc_autoreleaseReturnValue(i8*)
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declare i8* @objc_msgSend(i8*, i8*, ...)
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declare void @objc_release(i8*)
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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 i8* @test0(i8* %p) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: %0 = tail call i8* @objc_retainAutoreleaseReturnValue(i8* %p) [[NUW:#[0-9]+]]
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; CHECK-NEXT: ret i8* %0
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; CHECK-NEXT: }
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define i8* @test0(i8* %p) {
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entry:
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%call = tail call i8* @objc_unretainedObject(i8* %p)
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%0 = tail call i8* @objc_retainAutoreleasedReturnValue(i8* %call) nounwind
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%1 = tail call i8* @objc_autoreleaseReturnValue(i8* %call) nounwind
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ret i8* %call
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}
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; Properly create the @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: @objc_retain(
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; CHECK: @objc_retainAutoreleasedReturnValue(
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; CHECK: @objc_release(
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; CHECK: @objc_release(
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; CHECK: }
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define void @test1(i8* %call88) nounwind personality i32 (...)* @__gxx_personality_v0 {
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entry:
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%tmp1 = call i8* @objc_retainAutoreleasedReturnValue(i8* %call88) nounwind
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%call94 = invoke i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*)*)(i8* %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 i8* @objc_retainAutoreleasedReturnValue(i8* %call94) nounwind
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call void @objc_release(i8* %tmp1) nounwind
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invoke void bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to void (i8*)*)(i8* %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 @objc_release(i8* %tmp2) nounwind, !clang.imprecise_release !0
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unreachable
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lpad91: ; preds = %entry
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%exn91 = landingpad {i8*, 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 {i8*, i32}
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cleanup
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call void @objc_release(i8* %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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