| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: not --crash llc < %s -mtriple=riscv32 -mattr +reserve-x8 2>&1 \ |
| ; RUN: | FileCheck -check-prefix=NO-RESERVE-A1 %s |
| ; RUN: not --crash llc < %s -mtriple=riscv32 -mattr +reserve-x11 2>&1 \ |
| ; RUN: | FileCheck -check-prefix=NO-RESERVE-FP %s |
| ; RUN: llc < %s -mtriple=riscv32 -mattr +reserve-x8 -mattr +reserve-x11 \ |
| ; RUN: | FileCheck -check-prefix=RESERVE %s |
| |
| define i32 @get_reg_a1() nounwind { |
| ; NO-RESERVE-A1: Trying to obtain non-reserved register "a1". |
| ; RESERVE-LABEL: get_reg_a1: |
| ; RESERVE: # %bb.0: # %entry |
| ; RESERVE-NEXT: mv a0, a1 |
| ; RESERVE-NEXT: ret |
| entry: |
| %a1 = call i32 @llvm.read_register.i32(metadata !0) |
| ret i32 %a1 |
| } |
| |
| define i32 @get_reg_fp() nounwind { |
| ; NO-RESERVE-FP: Trying to obtain non-reserved register "fp". |
| ; RESERVE-LABEL: get_reg_fp: |
| ; RESERVE: # %bb.0: # %entry |
| ; RESERVE-NEXT: mv a0, s0 |
| ; RESERVE-NEXT: ret |
| entry: |
| %fp = call i32 @llvm.read_register.i32(metadata !1) |
| ret i32 %fp |
| } |
| |
| declare i32 @llvm.read_register.i32(metadata) nounwind |
| |
| !0 = !{!"a1\00"} |
| !1 = !{!"fp\00"} |