| Jim Grosbach | 6a7a727 | 2013-08-22 00:14:24 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -mtriple=thumbv7-apple-ios -mcpu=cortex-m3 | FileCheck %s |
| 2 | |
| 3 | @foo = common global void ()* null, align 4 |
| 4 | |
| 5 | ; Make sure in the presence of a tail call, r9 doesn't get used to hold |
| 6 | ; the destination address. It's callee-saved in AAPCS. |
| 7 | define arm_aapcscc void @test(i32 %a) nounwind { |
| 8 | ; CHECK-LABEL: test: |
| Benjamin Kramer | c10563d | 2014-01-11 21:06:00 +0000 | [diff] [blame] | 9 | ; CHECK-NOT: bx r9 |
| David Blaikie | a79ac14 | 2015-02-27 21:17:42 +0000 | [diff] [blame] | 10 | %tmp = load void ()*, void ()** @foo, align 4 |
| Jim Grosbach | 6a7a727 | 2013-08-22 00:14:24 +0000 | [diff] [blame] | 11 | tail call void asm sideeffect "", "~{r0},~{r1},~{r2},~{r3},~{r12}"() nounwind |
| 12 | tail call arm_aapcscc void %tmp() nounwind |
| 13 | ret void |
| 14 | } |