| Evan Cheng | eb56dca | 2010-11-22 18:12:04 +0000 | [diff] [blame] | 1 | ; rdar://8465407 |
| Tim Northover | b4ddc08 | 2014-05-30 10:09:59 +0000 | [diff] [blame] | 2 | ; RUN: llc < %s -mtriple=thumbv7-apple-ios -arm-atomic-cfg-tidy=0 | FileCheck %s |
| Evan Cheng | eb56dca | 2010-11-22 18:12:04 +0000 | [diff] [blame] | 3 | |
| 4 | %struct.buf = type opaque |
| 5 | |
| 6 | declare void @bar() nounwind optsize |
| 7 | |
| Oliver Stannard | 9aa6f01 | 2016-08-23 09:19:22 +0000 | [diff] [blame] | 8 | define void @foo() nounwind optsize "no-frame-pointer-elim"="true" { |
| Stephen Lin | d24ab20 | 2013-07-14 06:24:09 +0000 | [diff] [blame] | 9 | ; CHECK-LABEL: foo: |
| Evan Cheng | eb56dca | 2010-11-22 18:12:04 +0000 | [diff] [blame] | 10 | ; CHECK: push |
| Cameron Zwarich | 338d362 | 2011-03-11 21:52:04 +0000 | [diff] [blame] | 11 | ; CHECK: mov r7, sp |
| Evan Cheng | eb56dca | 2010-11-22 18:12:04 +0000 | [diff] [blame] | 12 | ; CHECK: sub sp, #4 |
| 13 | entry: |
| 14 | %m.i = alloca %struct.buf*, align 4 |
| 15 | br label %bb |
| 16 | |
| 17 | bb: |
| 18 | br i1 undef, label %bb3, label %bb2 |
| 19 | |
| 20 | bb2: |
| 21 | call void @bar() nounwind optsize |
| 22 | br i1 undef, label %bb, label %bb3 |
| 23 | |
| 24 | bb3: |
| 25 | br i1 undef, label %return, label %bb |
| 26 | |
| 27 | return: |
| 28 | ; CHECK: %return |
| 29 | ; 'mov sp, r7' would have left sp in an invalid state |
| 30 | ; CHECK-NOT: mov sp, r7 |
| 31 | ; CHECK-NOT: sub, sp, #4 |
| 32 | ; CHECK: add sp, #4 |
| 33 | ret void |
| 34 | } |