| ; RUN: opt -S < %s -objc-arc-expand -objc-arc-contract | FileCheck %s |
| ; Don't crash. Reproducer for a use_iterator bug from r203364. |
| ; rdar://problem/16333235 |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-apple-darwin13.2.0" |
| |
| %struct = type { i8*, i8* } |
| |
| ; CHECK-LABEL: @foo() { |
| define internal i8* @foo() { |
| entry: |
| %call = call i8* @bar() |
| ; CHECK: %retained1 = call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* %call) |
| %retained1 = call i8* @llvm.objc.retain(i8* %call) |
| %isnull = icmp eq i8* %retained1, null |
| br i1 %isnull, label %cleanup, label %if.end |
| |
| if.end: |
| ; CHECK: %retained2 = call i8* @llvm.objc.retain(i8* %retained1) |
| %retained2 = call i8* @llvm.objc.retain(i8* %retained1) |
| br label %cleanup |
| |
| cleanup: |
| %retval = phi i8* [ %retained2, %if.end ], [ null, %entry ] |
| ret i8* %retval |
| } |
| |
| declare i8* @bar() |
| |
| declare extern_weak i8* @llvm.objc.retain(i8*) |
