be4f571107
We're moving ARC optimisation and ARC emission in clang away from runtime methods and towards intrinsics. This is the part which actually uses the intrinsics in the ARC optimizer when both analyzing the existing calls and emitting new ones. Differential Revision: https://reviews.llvm.org/D55348 Reviewers: ahatanak llvm-svn: 349534
58 lines
2.0 KiB
LLVM
58 lines
2.0 KiB
LLVM
; RUN: opt -objc-arc -S < %s | FileCheck %s
|
|
|
|
declare i8* @llvm.objc.initWeak(i8**, i8*)
|
|
declare i8* @llvm.objc.storeWeak(i8**, i8*)
|
|
declare i8* @llvm.objc.loadWeak(i8**)
|
|
declare void @llvm.objc.destroyWeak(i8**)
|
|
declare i8* @llvm.objc.loadWeakRetained(i8**)
|
|
declare void @llvm.objc.moveWeak(i8**, i8**)
|
|
declare void @llvm.objc.copyWeak(i8**, i8**)
|
|
|
|
; If the pointer-to-weak-pointer is null, it's undefined behavior.
|
|
|
|
; CHECK-LABEL: define void @test0(
|
|
; CHECK: store i8* undef, i8** null
|
|
; CHECK: store i8* undef, i8** null
|
|
; CHECK: store i8* undef, i8** null
|
|
; CHECK: store i8* undef, i8** null
|
|
; CHECK: store i8* undef, i8** null
|
|
; CHECK: store i8* undef, i8** null
|
|
; CHECK: store i8* undef, i8** null
|
|
; CHECK: store i8* undef, i8** null
|
|
; CHECK: store i8* undef, i8** null
|
|
; CHECK: store i8* undef, i8** null
|
|
; CHECK: store i8* undef, i8** null
|
|
; CHECK: store i8* undef, i8** null
|
|
; CHECK: store i8* undef, i8** null
|
|
; CHECK: store i8* undef, i8** null
|
|
; CHECK: store i8* undef, i8** null
|
|
; CHECK: store i8* undef, i8** null
|
|
; CHECK: store i8* undef, i8** null
|
|
; CHECK: store i8* undef, i8** null
|
|
; CHECK: ret void
|
|
define void @test0(i8* %p, i8** %q) {
|
|
entry:
|
|
call i8* @llvm.objc.storeWeak(i8** null, i8* %p)
|
|
call i8* @llvm.objc.storeWeak(i8** undef, i8* %p)
|
|
call i8* @llvm.objc.loadWeakRetained(i8** null)
|
|
call i8* @llvm.objc.loadWeakRetained(i8** undef)
|
|
call i8* @llvm.objc.loadWeak(i8** null)
|
|
call i8* @llvm.objc.loadWeak(i8** undef)
|
|
call i8* @llvm.objc.initWeak(i8** null, i8* %p)
|
|
call i8* @llvm.objc.initWeak(i8** undef, i8* %p)
|
|
call void @llvm.objc.destroyWeak(i8** null)
|
|
call void @llvm.objc.destroyWeak(i8** undef)
|
|
|
|
call void @llvm.objc.copyWeak(i8** null, i8** %q)
|
|
call void @llvm.objc.copyWeak(i8** undef, i8** %q)
|
|
call void @llvm.objc.copyWeak(i8** %q, i8** null)
|
|
call void @llvm.objc.copyWeak(i8** %q, i8** undef)
|
|
|
|
call void @llvm.objc.moveWeak(i8** null, i8** %q)
|
|
call void @llvm.objc.moveWeak(i8** undef, i8** %q)
|
|
call void @llvm.objc.moveWeak(i8** %q, i8** null)
|
|
call void @llvm.objc.moveWeak(i8** %q, i8** undef)
|
|
|
|
ret void
|
|
}
|