xref: /llvm-project/llvm/test/CodeGen/RISCV/nest-register.ll (revision eabaee0c59110d0e11b33a69db54ccda526b35fd)
1f4f6c63fSmelonedo; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2f4f6c63fSmelonedo; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \
3f4f6c63fSmelonedo; RUN:   | FileCheck -check-prefix=RV32I %s
4f4f6c63fSmelonedo; RUN: llc -mtriple=riscv64 -verify-machineinstrs < %s \
5f4f6c63fSmelonedo; RUN:   | FileCheck -check-prefix=RV64I %s
6f4f6c63fSmelonedo
7f4f6c63fSmelonedo; Tests that the 'nest' parameter attribute causes the relevant parameter to be
8f4f6c63fSmelonedo; passed in the right register.
9f4f6c63fSmelonedo
10f4f6c63fSmelonedodefine ptr @nest_receiver(ptr nest %arg) nounwind {
11f4f6c63fSmelonedo; RV32I-LABEL: nest_receiver:
12f4f6c63fSmelonedo; RV32I:       # %bb.0:
13f4f6c63fSmelonedo; RV32I-NEXT:    mv a0, t2
14f4f6c63fSmelonedo; RV32I-NEXT:    ret
15f4f6c63fSmelonedo;
16f4f6c63fSmelonedo; RV64I-LABEL: nest_receiver:
17f4f6c63fSmelonedo; RV64I:       # %bb.0:
18f4f6c63fSmelonedo; RV64I-NEXT:    mv a0, t2
19f4f6c63fSmelonedo; RV64I-NEXT:    ret
20f4f6c63fSmelonedo  ret ptr %arg
21f4f6c63fSmelonedo}
22f4f6c63fSmelonedo
23f4f6c63fSmelonedodefine ptr @nest_caller(ptr %arg) nounwind {
24f4f6c63fSmelonedo; RV32I-LABEL: nest_caller:
25f4f6c63fSmelonedo; RV32I:       # %bb.0:
26f4f6c63fSmelonedo; RV32I-NEXT:    addi sp, sp, -16
27f4f6c63fSmelonedo; RV32I-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
28f4f6c63fSmelonedo; RV32I-NEXT:    mv t2, a0
29*eabaee0cSFangrui Song; RV32I-NEXT:    call nest_receiver
30f4f6c63fSmelonedo; RV32I-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
31f4f6c63fSmelonedo; RV32I-NEXT:    addi sp, sp, 16
32f4f6c63fSmelonedo; RV32I-NEXT:    ret
33f4f6c63fSmelonedo;
34f4f6c63fSmelonedo; RV64I-LABEL: nest_caller:
35f4f6c63fSmelonedo; RV64I:       # %bb.0:
36f4f6c63fSmelonedo; RV64I-NEXT:    addi sp, sp, -16
37f4f6c63fSmelonedo; RV64I-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
38f4f6c63fSmelonedo; RV64I-NEXT:    mv t2, a0
39*eabaee0cSFangrui Song; RV64I-NEXT:    call nest_receiver
40f4f6c63fSmelonedo; RV64I-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
41f4f6c63fSmelonedo; RV64I-NEXT:    addi sp, sp, 16
42f4f6c63fSmelonedo; RV64I-NEXT:    ret
43f4f6c63fSmelonedo  %result = call ptr @nest_receiver(ptr nest %arg)
44f4f6c63fSmelonedo  ret ptr %result
45f4f6c63fSmelonedo}
46