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
5 declare { i32, i1 } @llvm.usub.with.overflow.i32(i32, i32) nounwind readnone
6 declare { i64, i1 } @llvm.usub.with.overflow.i64(i64, i64) nounwind readnone
8 ; FUNC-LABEL: {{^}}usubo_i64_zext:
9 define void @usubo_i64_zext(i64 addrspace(1)* %out, i64 %a, i64 %b) nounwind {
10 %usub = call { i64, i1 } @llvm.usub.with.overflow.i64(i64 %a, i64 %b) nounwind
11 %val = extractvalue { i64, i1 } %usub, 0
12 %carry = extractvalue { i64, i1 } %usub, 1
13 %ext = zext i1 %carry to i64
14 %add2 = add i64 %val, %ext
15 store i64 %add2, i64 addrspace(1)* %out, align 8
19 ; FUNC-LABEL: {{^}}s_usubo_i32:
21 define void @s_usubo_i32(i32 addrspace(1)* %out, i1 addrspace(1)* %carryout, i32 %a, i32 %b) nounwind {
22 %usub = call { i32, i1 } @llvm.usub.with.overflow.i32(i32 %a, i32 %b) nounwind
23 %val = extractvalue { i32, i1 } %usub, 0
24 %carry = extractvalue { i32, i1 } %usub, 1
25 store i32 %val, i32 addrspace(1)* %out, align 4
26 store i1 %carry, i1 addrspace(1)* %carryout
30 ; FUNC-LABEL: {{^}}v_usubo_i32:
31 ; SI: v_subrev_i32_e32
32 define void @v_usubo_i32(i32 addrspace(1)* %out, i1 addrspace(1)* %carryout, i32 addrspace(1)* %aptr, i32 addrspace(1)* %bptr) nounwind {
33 %a = load i32, i32 addrspace(1)* %aptr, align 4
34 %b = load i32, i32 addrspace(1)* %bptr, align 4
35 %usub = call { i32, i1 } @llvm.usub.with.overflow.i32(i32 %a, i32 %b) nounwind
36 %val = extractvalue { i32, i1 } %usub, 0
37 %carry = extractvalue { i32, i1 } %usub, 1
38 store i32 %val, i32 addrspace(1)* %out, align 4
39 store i1 %carry, i1 addrspace(1)* %carryout
43 ; FUNC-LABEL: {{^}}s_usubo_i64:
46 define void @s_usubo_i64(i64 addrspace(1)* %out, i1 addrspace(1)* %carryout, i64 %a, i64 %b) nounwind {
47 %usub = call { i64, i1 } @llvm.usub.with.overflow.i64(i64 %a, i64 %b) nounwind
48 %val = extractvalue { i64, i1 } %usub, 0
49 %carry = extractvalue { i64, i1 } %usub, 1
50 store i64 %val, i64 addrspace(1)* %out, align 8
51 store i1 %carry, i1 addrspace(1)* %carryout
55 ; FUNC-LABEL: {{^}}v_usubo_i64:
58 define void @v_usubo_i64(i64 addrspace(1)* %out, i1 addrspace(1)* %carryout, i64 addrspace(1)* %aptr, i64 addrspace(1)* %bptr) nounwind {
59 %a = load i64, i64 addrspace(1)* %aptr, align 4
60 %b = load i64, i64 addrspace(1)* %bptr, align 4
61 %usub = call { i64, i1 } @llvm.usub.with.overflow.i64(i64 %a, i64 %b) nounwind
62 %val = extractvalue { i64, i1 } %usub, 0
63 %carry = extractvalue { i64, i1 } %usub, 1
64 store i64 %val, i64 addrspace(1)* %out, align 8
65 store i1 %carry, i1 addrspace(1)* %carryout