| ; RUN: llc < %s -mtriple=arm-apple-darwin | FileCheck %s |
| ; RUN: llc < %s -mtriple=arm-linux-gnueabi | FileCheck %s |
| |
| define i32 @get_stack() nounwind { |
| entry: |
| ; CHECK-LABEL: get_stack: |
| ; CHECK: mov r0, sp |
| %sp = call i32 @llvm.read_register.i32(metadata !0) |
| ret i32 %sp |
| } |
| |
| define void @set_stack(i32 %val) nounwind { |
| entry: |
| ; CHECK-LABEL: set_stack: |
| ; CHECK: mov sp, r0 |
| call void @llvm.write_register.i32(metadata !0, i32 %val) |
| ret void |
| } |
| |
| declare i32 @llvm.read_register.i32(metadata) nounwind |
| declare void @llvm.write_register.i32(metadata, i32) nounwind |
| |
| ; register unsigned long current_stack_pointer asm("sp"); |
| ; CHECK-NOT: .asciz "sp" |
| !0 = !{!"sp\00"} |
