1 ; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs< %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
2 ; RUN: llc -march=r600 -mcpu=cypress -verify-machineinstrs< %s
4 declare { i32, i1 } @llvm.usub.with.overflow.i32(i32, i32) nounwind readnone
5 declare { i64, i1 } @llvm.usub.with.overflow.i64(i64, i64) nounwind readnone
7 ; FUNC-LABEL: {{^}}usubo_i64_zext:
8 define void @usubo_i64_zext(i64 addrspace(1)* %out, i64 %a, i64 %b) nounwind {
9 %usub = call { i64, i1 } @llvm.usub.with.overflow.i64(i64 %a, i64 %b) nounwind
10 %val = extractvalue { i64, i1 } %usub, 0
11 %carry = extractvalue { i64, i1 } %usub, 1
12 %ext = zext i1 %carry to i64
13 %add2 = add i64 %val, %ext
14 store i64 %add2, i64 addrspace(1)* %out, align 8
18 ; FUNC-LABEL: {{^}}s_usubo_i32:
20 define void @s_usubo_i32(i32 addrspace(1)* %out, i1 addrspace(1)* %carryout, i32 %a, i32 %b) nounwind {
21 %usub = call { i32, i1 } @llvm.usub.with.overflow.i32(i32 %a, i32 %b) nounwind
22 %val = extractvalue { i32, i1 } %usub, 0
23 %carry = extractvalue { i32, i1 } %usub, 1
24 store i32 %val, i32 addrspace(1)* %out, align 4
25 store i1 %carry, i1 addrspace(1)* %carryout
29 ; FUNC-LABEL: {{^}}v_usubo_i32:
30 ; SI: v_subrev_i32_e32
31 define void @v_usubo_i32(i32 addrspace(1)* %out, i1 addrspace(1)* %carryout, i32 addrspace(1)* %aptr, i32 addrspace(1)* %bptr) nounwind {
32 %a = load i32 addrspace(1)* %aptr, align 4
33 %b = load i32 addrspace(1)* %bptr, align 4
34 %usub = call { i32, i1 } @llvm.usub.with.overflow.i32(i32 %a, i32 %b) nounwind
35 %val = extractvalue { i32, i1 } %usub, 0
36 %carry = extractvalue { i32, i1 } %usub, 1
37 store i32 %val, i32 addrspace(1)* %out, align 4
38 store i1 %carry, i1 addrspace(1)* %carryout
42 ; FUNC-LABEL: {{^}}s_usubo_i64:
45 define void @s_usubo_i64(i64 addrspace(1)* %out, i1 addrspace(1)* %carryout, i64 %a, i64 %b) nounwind {
46 %usub = call { i64, i1 } @llvm.usub.with.overflow.i64(i64 %a, i64 %b) nounwind
47 %val = extractvalue { i64, i1 } %usub, 0
48 %carry = extractvalue { i64, i1 } %usub, 1
49 store i64 %val, i64 addrspace(1)* %out, align 8
50 store i1 %carry, i1 addrspace(1)* %carryout
54 ; FUNC-LABEL: {{^}}v_usubo_i64:
57 define void @v_usubo_i64(i64 addrspace(1)* %out, i1 addrspace(1)* %carryout, i64 addrspace(1)* %aptr, i64 addrspace(1)* %bptr) nounwind {
58 %a = load i64 addrspace(1)* %aptr, align 4
59 %b = load i64 addrspace(1)* %bptr, align 4
60 %usub = call { i64, i1 } @llvm.usub.with.overflow.i64(i64 %a, i64 %b) nounwind
61 %val = extractvalue { i64, i1 } %usub, 0
62 %carry = extractvalue { i64, i1 } %usub, 1
63 store i64 %val, i64 addrspace(1)* %out, align 8
64 store i1 %carry, i1 addrspace(1)* %carryout