| ; RUN: opt -mem2reg < %s -S | FileCheck %s | |
| ; CHECK-LABEL: void @patatino() | |
| ; CHECK-NEXT: ret void | |
| ; CHECK-LABEL: cantreachme: | |
| ; CHECK-NEXT: %dec = add nsw i32 undef, -1 | |
| ; CHECK-NEXT: br label %cantreachme | |
| define void @patatino() { | |
| %a = alloca i32, align 4 | |
| ret void | |
| cantreachme: | |
| %dec = add nsw i32 %tmp, -1 | |
| store i32 %dec, i32* %a | |
| store i32 %tmp, i32* %a | |
| %tmp = load i32, i32* %a | |
| br label %cantreachme | |
| } |