1; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs< %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
2; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs< %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
3; RUN: llc -march=r600 -mcpu=cypress -verify-machineinstrs< %s
4
5declare { i32, i1 } @llvm.ssub.with.overflow.i32(i32, i32) nounwind readnone
6declare { i64, i1 } @llvm.ssub.with.overflow.i64(i64, i64) nounwind readnone
7
8; FUNC-LABEL: {{^}}ssubo_i64_zext:
9define void @ssubo_i64_zext(i64 addrspace(1)* %out, i64 %a, i64 %b) nounwind {
10  %ssub = call { i64, i1 } @llvm.ssub.with.overflow.i64(i64 %a, i64 %b) nounwind
11  %val = extractvalue { i64, i1 } %ssub, 0
12  %carry = extractvalue { i64, i1 } %ssub, 1
13  %ext = zext i1 %carry to i64
14  %add2 = add i64 %val, %ext
15  store i64 %add2, i64 addrspace(1)* %out, align 8
16  ret void
17}
18
19; FUNC-LABEL: {{^}}s_ssubo_i32:
20define void @s_ssubo_i32(i32 addrspace(1)* %out, i1 addrspace(1)* %carryout, i32 %a, i32 %b) nounwind {
21  %ssub = call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 %a, i32 %b) nounwind
22  %val = extractvalue { i32, i1 } %ssub, 0
23  %carry = extractvalue { i32, i1 } %ssub, 1
24  store i32 %val, i32 addrspace(1)* %out, align 4
25  store i1 %carry, i1 addrspace(1)* %carryout
26  ret void
27}
28
29; FUNC-LABEL: {{^}}v_ssubo_i32:
30define void @v_ssubo_i32(i32 addrspace(1)* %out, i1 addrspace(1)* %carryout, i32 addrspace(1)* %aptr, i32 addrspace(1)* %bptr) nounwind {
31  %a = load i32 addrspace(1)* %aptr, align 4
32  %b = load i32 addrspace(1)* %bptr, align 4
33  %ssub = call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 %a, i32 %b) nounwind
34  %val = extractvalue { i32, i1 } %ssub, 0
35  %carry = extractvalue { i32, i1 } %ssub, 1
36  store i32 %val, i32 addrspace(1)* %out, align 4
37  store i1 %carry, i1 addrspace(1)* %carryout
38  ret void
39}
40
41; FUNC-LABEL: {{^}}s_ssubo_i64:
42; SI: s_sub_u32
43; SI: s_subb_u32
44define void @s_ssubo_i64(i64 addrspace(1)* %out, i1 addrspace(1)* %carryout, i64 %a, i64 %b) nounwind {
45  %ssub = call { i64, i1 } @llvm.ssub.with.overflow.i64(i64 %a, i64 %b) nounwind
46  %val = extractvalue { i64, i1 } %ssub, 0
47  %carry = extractvalue { i64, i1 } %ssub, 1
48  store i64 %val, i64 addrspace(1)* %out, align 8
49  store i1 %carry, i1 addrspace(1)* %carryout
50  ret void
51}
52
53; FUNC-LABEL: {{^}}v_ssubo_i64:
54; SI: v_sub_i32_e32
55; SI: v_subb_u32_e32
56define void @v_ssubo_i64(i64 addrspace(1)* %out, i1 addrspace(1)* %carryout, i64 addrspace(1)* %aptr, i64 addrspace(1)* %bptr) nounwind {
57  %a = load i64 addrspace(1)* %aptr, align 4
58  %b = load i64 addrspace(1)* %bptr, align 4
59  %ssub = call { i64, i1 } @llvm.ssub.with.overflow.i64(i64 %a, i64 %b) nounwind
60  %val = extractvalue { i64, i1 } %ssub, 0
61  %carry = extractvalue { i64, i1 } %ssub, 1
62  store i64 %val, i64 addrspace(1)* %out, align 8
63  store i1 %carry, i1 addrspace(1)* %carryout
64  ret void
65}
66