| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s -mtriple=riscv32 | FileCheck %s |
| |
| define i32 @get_stack() nounwind { |
| ; CHECK-LABEL: get_stack: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: mv a0, sp |
| ; CHECK-NEXT: ret |
| entry: |
| %sp = call i32 @llvm.read_register.i32(metadata !0) |
| ret i32 %sp |
| } |
| |
| define void @set_stack(i32 %val) nounwind { |
| ; CHECK-LABEL: set_stack: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: mv sp, a0 |
| ; CHECK-NEXT: ret |
| entry: |
| call void @llvm.write_register.i32(metadata !0, i32 %val) |
| ret void |
| } |
| |
| define i32 @get_tp_arch_name() nounwind { |
| ; CHECK-LABEL: get_tp_arch_name: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: mv a0, tp |
| ; CHECK-NEXT: ret |
| entry: |
| %sp = call i32 @llvm.read_register.i32(metadata !1) |
| ret i32 %sp |
| } |
| |
| declare i32 @llvm.read_register.i32(metadata) nounwind |
| declare void @llvm.write_register.i32(metadata, i32) nounwind |
| |
| !0 = !{!"sp\00"} |
| !1 = !{!"x4\00"} |