| ; 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 |
| } |
