xref: /llvm-project/llvm/test/CodeGen/LoongArch/get-reg.ll (revision 9d4f7f44b64d87d1068859906f43b7ce03a7388b) 
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc < %s --mtriple=loongarch64 -mattr=+d | FileCheck %s
3
4define i64 @get_stack() nounwind {
5; CHECK-LABEL: get_stack:
6; CHECK:       # %bb.0: # %entry
7; CHECK-NEXT:    move $a0, $sp
8; CHECK-NEXT:    ret
9entry:
10  %sp = call i64 @llvm.read_register.i64(metadata !0)
11  ret i64 %sp
12}
13
14define void @set_stack(i64 %val) nounwind {
15; CHECK-LABEL: set_stack:
16; CHECK:       # %bb.0: # %entry
17; CHECK-NEXT:    move $sp, $a0
18; CHECK-NEXT:    ret
19entry:
20  call void @llvm.write_register.i64(metadata !0, i64 %val)
21  ret void
22}
23
24declare i64 @llvm.read_register.i64(metadata) nounwind
25declare void @llvm.write_register.i64(metadata, i64) nounwind
26
27!0 = !{!"$sp\00"}
28