| Renato Golin | c7aea40 | 2014-05-06 16:51:25 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -mtriple=arm64-linux-gnu | FileCheck %s |
| 2 | |
| 3 | define i64 @get_stack() nounwind { |
| 4 | entry: |
| 5 | ; CHECK-LABEL: get_stack: |
| 6 | ; CHECK: mov x0, sp |
| 7 | %sp = call i64 @llvm.read_register.i64(metadata !0) |
| 8 | ret i64 %sp |
| 9 | } |
| 10 | |
| 11 | define void @set_stack(i64 %val) nounwind { |
| 12 | entry: |
| 13 | ; CHECK-LABEL: set_stack: |
| 14 | ; CHECK: mov sp, x0 |
| 15 | call void @llvm.write_register.i64(metadata !0, i64 %val) |
| 16 | ret void |
| 17 | } |
| 18 | |
| 19 | declare i64 @llvm.read_register.i64(metadata) nounwind |
| 20 | declare void @llvm.write_register.i64(metadata, i64) nounwind |
| 21 | |
| 22 | ; register unsigned long current_stack_pointer asm("sp"); |
| 23 | ; CHECK-NOT: .asciz "sp" |
| Duncan P. N. Exon Smith | be7ea19 | 2014-12-15 19:07:53 +0000 | [diff] [blame] | 24 | !0 = !{!"sp\00"} |