| ; rdar://8465407 |
| ; RUN: llc < %s -mtriple=thumbv7-apple-darwin | FileCheck %s |
| |
| %struct.buf = type opaque |
| |
| declare void @bar() nounwind optsize |
| |
| define void @foo() nounwind optsize { |
| ; CHECK: foo: |
| ; CHECK: push |
| ; CHECK: mov r7, sp |
| ; CHECK: sub sp, #4 |
| entry: |
| %m.i = alloca %struct.buf*, align 4 |
| br label %bb |
| |
| bb: |
| br i1 undef, label %bb3, label %bb2 |
| |
| bb2: |
| call void @bar() nounwind optsize |
| br i1 undef, label %bb, label %bb3 |
| |
| bb3: |
| br i1 undef, label %return, label %bb |
| |
| return: |
| ; CHECK: %return |
| ; 'mov sp, r7' would have left sp in an invalid state |
| ; CHECK-NOT: mov sp, r7 |
| ; CHECK-NOT: sub, sp, #4 |
| ; CHECK: add sp, #4 |
| ret void |
| } |
