| Alex Bradbury | a337675 | 2017-11-08 13:41:21 +0000 | [diff] [blame^] | 1 | ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| 2 | ; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \ |
| 3 | ; RUN: | FileCheck -check-prefix=RV32I %s |
| 4 | |
| 5 | declare i32 @external_function(i32) |
| 6 | |
| 7 | define i32 @test_call_external(i32 %a) nounwind { |
| 8 | ; RV32I-LABEL: test_call_external: |
| 9 | ; RV32I: # BB#0: |
| 10 | ; RV32I-NEXT: sw ra, 12(s0) |
| 11 | ; RV32I-NEXT: lui a1, %hi(external_function) |
| 12 | ; RV32I-NEXT: addi a1, a1, %lo(external_function) |
| 13 | ; RV32I-NEXT: jalr ra, a1, 0 |
| 14 | ; RV32I-NEXT: lw ra, 12(s0) |
| 15 | ; RV32I-NEXT: jalr zero, ra, 0 |
| 16 | %1 = call i32 @external_function(i32 %a) |
| 17 | ret i32 %1 |
| 18 | } |
| 19 | |
| 20 | define i32 @defined_function(i32 %a) nounwind { |
| 21 | ; RV32I-LABEL: defined_function: |
| 22 | ; RV32I: # BB#0: |
| 23 | ; RV32I-NEXT: addi a0, a0, 1 |
| 24 | ; RV32I-NEXT: jalr zero, ra, 0 |
| 25 | %1 = add i32 %a, 1 |
| 26 | ret i32 %1 |
| 27 | } |
| 28 | |
| 29 | define i32 @test_call_defined(i32 %a) nounwind { |
| 30 | ; RV32I-LABEL: test_call_defined: |
| 31 | ; RV32I: # BB#0: |
| 32 | ; RV32I-NEXT: sw ra, 12(s0) |
| 33 | ; RV32I-NEXT: lui a1, %hi(defined_function) |
| 34 | ; RV32I-NEXT: addi a1, a1, %lo(defined_function) |
| 35 | ; RV32I-NEXT: jalr ra, a1, 0 |
| 36 | ; RV32I-NEXT: lw ra, 12(s0) |
| 37 | ; RV32I-NEXT: jalr zero, ra, 0 |
| 38 | %1 = call i32 @defined_function(i32 %a) nounwind |
| 39 | ret i32 %1 |
| 40 | } |
| 41 | |
| 42 | define i32 @test_call_indirect(i32 (i32)* %a, i32 %b) nounwind { |
| 43 | ; RV32I-LABEL: test_call_indirect: |
| 44 | ; RV32I: # BB#0: |
| 45 | ; RV32I-NEXT: sw ra, 12(s0) |
| 46 | ; RV32I-NEXT: addi a2, a0, 0 |
| 47 | ; RV32I-NEXT: addi a0, a1, 0 |
| 48 | ; RV32I-NEXT: jalr ra, a2, 0 |
| 49 | ; RV32I-NEXT: lw ra, 12(s0) |
| 50 | ; RV32I-NEXT: jalr zero, ra, 0 |
| 51 | %1 = call i32 %a(i32 %b) |
| 52 | ret i32 %1 |
| 53 | } |
| 54 | |
| 55 | ; Ensure that calls to fastcc functions aren't rejected. Such calls may be |
| 56 | ; introduced when compiling with optimisation. |
| 57 | |
| 58 | define fastcc i32 @fastcc_function(i32 %a, i32 %b) nounwind { |
| 59 | ; RV32I-LABEL: fastcc_function: |
| 60 | ; RV32I: # BB#0: |
| 61 | ; RV32I-NEXT: add a0, a0, a1 |
| 62 | ; RV32I-NEXT: jalr zero, ra, 0 |
| 63 | %1 = add i32 %a, %b |
| 64 | ret i32 %1 |
| 65 | } |
| 66 | |
| 67 | define i32 @test_call_fastcc(i32 %a, i32 %b) nounwind { |
| 68 | ; RV32I-LABEL: test_call_fastcc: |
| 69 | ; RV32I: # BB#0: |
| 70 | ; RV32I-NEXT: sw ra, 12(s0) |
| 71 | ; RV32I-NEXT: sw s1, 8(s0) |
| 72 | ; RV32I-NEXT: addi s1, a0, 0 |
| 73 | ; RV32I-NEXT: lui a0, %hi(fastcc_function) |
| 74 | ; RV32I-NEXT: addi a2, a0, %lo(fastcc_function) |
| 75 | ; RV32I-NEXT: addi a0, s1, 0 |
| 76 | ; RV32I-NEXT: jalr ra, a2, 0 |
| 77 | ; RV32I-NEXT: addi a0, s1, 0 |
| 78 | ; RV32I-NEXT: lw s1, 8(s0) |
| 79 | ; RV32I-NEXT: lw ra, 12(s0) |
| 80 | ; RV32I-NEXT: jalr zero, ra, 0 |
| 81 | %1 = call fastcc i32 @fastcc_function(i32 %a, i32 %b) |
| 82 | ret i32 %a |
| 83 | } |