| Alexey Samsonov | 99a92f2 | 2012-07-16 06:54:09 +0000 | [diff] [blame^] | 1 | ; RUN: llc < %s -force-align-stack -stack-alignment=32 -march=x86-64 -mattr=+avx -mtriple=i686-apple-darwin10 | FileCheck %s |
| 2 | ; PR11468 |
| 3 | |
| 4 | define void @f(i64 %sz) uwtable { |
| 5 | entry: |
| 6 | %a = alloca i32, align 32 |
| 7 | store volatile i32 0, i32* %a, align 32 |
| 8 | ; force to push r14 on stack |
| 9 | call void asm sideeffect "nop", "~{r14},~{dirflag},~{fpsr},~{flags}"() nounwind, !srcloc !0 |
| 10 | ret void |
| 11 | |
| 12 | ; CHECK: _f |
| 13 | ; CHECK: pushq %rbp |
| 14 | ; CHECK: .cfi_offset %rbp, -16 |
| 15 | ; CHECK: movq %rsp, %rbp |
| 16 | ; CHECK: .cfi_def_cfa_register %rbp |
| 17 | |
| 18 | ; We first push register on stack, and then realign it, so that |
| 19 | ; .cfi_offset value is correct |
| 20 | ; CHECK: pushq %r14 |
| 21 | ; CHECK: andq $-32, %rsp |
| 22 | ; CHECK: .cfi_offset %r14, -24 |
| 23 | |
| 24 | ; Restore %rsp from %rbp and subtract the total size of saved regsiters. |
| 25 | ; CHECK: leaq -8(%rbp), %rsp |
| 26 | |
| 27 | ; Pop saved registers. |
| 28 | ; CHECK: popq %r14 |
| 29 | ; CHECK: popq %rbp |
| 30 | } |
| 31 | |
| 32 | !0 = metadata !{i32 125} |
| 33 | |