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
5 declare {i32, i1} @llvm.sadd.with.overflow.i32(i32 %a, i32 %b)
6 declare {i32, i1} @llvm.ssub.with.overflow.i32(i32 %a, i32 %b)
7 declare {i32, i1} @llvm.uadd.with.overflow.i32(i32 %a, i32 %b)
8 declare {i32, i1} @llvm.usub.with.overflow.i32(i32 %a, i32 %b)
10 define i1 @sadd(i32 %a, i32 %b, i32* %c) nounwind {
12 ; RV32I: # %bb.0: # %entry
13 ; RV32I-NEXT: add a3, a0, a1
14 ; RV32I-NEXT: slt a0, a3, a0
15 ; RV32I-NEXT: slti a1, a1, 0
16 ; RV32I-NEXT: xor a0, a1, a0
17 ; RV32I-NEXT: sw a3, 0(a2)
20 %x = call {i32, i1} @llvm.sadd.with.overflow.i32(i32 %a, i32 %b)
21 %calc = extractvalue {i32, i1} %x, 0
22 %ovf = extractvalue {i32, i1} %x, 1
23 store i32 %calc, i32* %c
27 define i1 @ssub(i32 %a, i32 %b, i32* %c) nounwind {
29 ; RV32I: # %bb.0: # %entry
30 ; RV32I-NEXT: sgtz a3, a1
31 ; RV32I-NEXT: sub a1, a0, a1
32 ; RV32I-NEXT: slt a0, a1, a0
33 ; RV32I-NEXT: xor a0, a3, a0
34 ; RV32I-NEXT: sw a1, 0(a2)
37 %x = call {i32, i1} @llvm.ssub.with.overflow.i32(i32 %a, i32 %b)
38 %calc = extractvalue {i32, i1} %x, 0
39 %ovf = extractvalue {i32, i1} %x, 1
40 store i32 %calc, i32* %c
44 define i1 @uadd(i32 %a, i32 %b, i32* %c) nounwind {
46 ; RV32I: # %bb.0: # %entry
47 ; RV32I-NEXT: add a1, a0, a1
48 ; RV32I-NEXT: sltu a0, a1, a0
49 ; RV32I-NEXT: sw a1, 0(a2)
52 %x = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %a, i32 %b)
53 %calc = extractvalue {i32, i1} %x, 0
54 %ovf = extractvalue {i32, i1} %x, 1
55 store i32 %calc, i32* %c
59 define i1 @usub(i32 %a, i32 %b, i32* %c) nounwind {
61 ; RV32I: # %bb.0: # %entry
62 ; RV32I-NEXT: sub a1, a0, a1
63 ; RV32I-NEXT: sltu a0, a0, a1
64 ; RV32I-NEXT: sw a1, 0(a2)
67 %x = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %a, i32 %b)
68 %calc = extractvalue {i32, i1} %x, 0
69 %ovf = extractvalue {i32, i1} %x, 1
70 store i32 %calc, i32* %c