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 | FileCheck -check-prefix=EG -check-prefix=FUNC %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:
12 define void @usubo_i64_zext(i64 addrspace(1)* %out, i64 %a, i64 %b) nounwind {
13 %usub = call { i64, i1 } @llvm.usub.with.overflow.i64(i64 %a, i64 %b) nounwind
14 %val = extractvalue { i64, i1 } %usub, 0
15 %carry = extractvalue { i64, i1 } %usub, 1
16 %ext = zext i1 %carry to i64
17 %add2 = add i64 %val, %ext
18 store i64 %add2, i64 addrspace(1)* %out, align 8
22 ; FUNC-LABEL: {{^}}s_usubo_i32:
27 define void @s_usubo_i32(i32 addrspace(1)* %out, i1 addrspace(1)* %carryout, i32 %a, i32 %b) nounwind {
28 %usub = call { i32, i1 } @llvm.usub.with.overflow.i32(i32 %a, i32 %b) nounwind
29 %val = extractvalue { i32, i1 } %usub, 0
30 %carry = extractvalue { i32, i1 } %usub, 1
31 store i32 %val, i32 addrspace(1)* %out, align 4
32 store i1 %carry, i1 addrspace(1)* %carryout
36 ; FUNC-LABEL: {{^}}v_usubo_i32:
37 ; SI: v_subrev_i32_e32
41 define void @v_usubo_i32(i32 addrspace(1)* %out, i1 addrspace(1)* %carryout, i32 addrspace(1)* %aptr, i32 addrspace(1)* %bptr) nounwind {
42 %a = load i32, i32 addrspace(1)* %aptr, align 4
43 %b = load i32, i32 addrspace(1)* %bptr, align 4
44 %usub = call { i32, i1 } @llvm.usub.with.overflow.i32(i32 %a, i32 %b) nounwind
45 %val = extractvalue { i32, i1 } %usub, 0
46 %carry = extractvalue { i32, i1 } %usub, 1
47 store i32 %val, i32 addrspace(1)* %out, align 4
48 store i1 %carry, i1 addrspace(1)* %carryout
52 ; FUNC-LABEL: {{^}}s_usubo_i64:
60 define void @s_usubo_i64(i64 addrspace(1)* %out, i1 addrspace(1)* %carryout, i64 %a, i64 %b) nounwind {
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
69 ; FUNC-LABEL: {{^}}v_usubo_i64:
77 define void @v_usubo_i64(i64 addrspace(1)* %out, i1 addrspace(1)* %carryout, i64 addrspace(1)* %aptr, i64 addrspace(1)* %bptr) nounwind {
78 %a = load i64, i64 addrspace(1)* %aptr, align 4
79 %b = load i64, i64 addrspace(1)* %bptr, align 4
80 %usub = call { i64, i1 } @llvm.usub.with.overflow.i64(i64 %a, i64 %b) nounwind
81 %val = extractvalue { i64, i1 } %usub, 0
82 %carry = extractvalue { i64, i1 } %usub, 1
83 store i64 %val, i64 addrspace(1)* %out, align 8
84 store i1 %carry, i1 addrspace(1)* %carryout