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f6c9646a94
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
47 lines
1.6 KiB
LLVM
47 lines
1.6 KiB
LLVM
; RUN: opt -S -basicaa -objc-arc < %s | FileCheck %s
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; rdar://11434915
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; Delete the weak calls and replace them with just the net retain.
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; CHECK: define void @test0(i8* %p) {
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; CHECK-NEXT: call i8* @llvm.objc.retain(i8* %p)
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; CHECK-NEXT: ret void
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define void @test0(i8* %p) {
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%weakBlock = alloca i8*, align 8
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%tmp7 = call i8* @llvm.objc.initWeak(i8** %weakBlock, i8* %p) nounwind
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%tmp26 = call i8* @llvm.objc.loadWeakRetained(i8** %weakBlock) nounwind
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call void @llvm.objc.destroyWeak(i8** %weakBlock) nounwind
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ret void
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}
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; CHECK: define i8* @test1(i8* %p) {
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; CHECK-NEXT: call i8* @llvm.objc.retain(i8* %p)
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; CHECK-NEXT: ret i8* %p
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define i8* @test1(i8* %p) {
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%weakBlock = alloca i8*, align 8
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%tmp7 = call i8* @llvm.objc.initWeak(i8** %weakBlock, i8* %p) nounwind
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%tmp26 = call i8* @llvm.objc.loadWeakRetained(i8** %weakBlock) nounwind
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call void @llvm.objc.destroyWeak(i8** %weakBlock) nounwind
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ret i8* %tmp26
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}
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; CHECK: define i8* @test2(i8* %p, i8* %q) {
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; CHECK-NEXT: call i8* @llvm.objc.retain(i8* %q)
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; CHECK-NEXT: ret i8* %q
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define i8* @test2(i8* %p, i8* %q) {
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%weakBlock = alloca i8*, align 8
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%tmp7 = call i8* @llvm.objc.initWeak(i8** %weakBlock, i8* %p) nounwind
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%tmp19 = call i8* @llvm.objc.storeWeak(i8** %weakBlock, i8* %q) nounwind
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%tmp26 = call i8* @llvm.objc.loadWeakRetained(i8** %weakBlock) nounwind
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call void @llvm.objc.destroyWeak(i8** %weakBlock) nounwind
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ret i8* %tmp26
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}
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declare i8* @llvm.objc.initWeak(i8**, i8*)
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declare void @llvm.objc.destroyWeak(i8**)
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declare i8* @llvm.objc.loadWeakRetained(i8**)
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declare i8* @llvm.objc.storeWeak(i8** %weakBlock, i8* %q)
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