mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-24 06:30:19 +00:00
26 lines
687 B
LLVM
26 lines
687 B
LLVM
|
; 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 = metadata !{metadata !"sp\00"}
|