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 4 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 7 8 ; FUNC-LABEL: {{^}}usubo_i64_zext: 9 10 ; EG: SUBB_UINT 11 ; EG: ADDC_UINT 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 19 ret void 20 } 21 22 ; FUNC-LABEL: {{^}}s_usubo_i32: 23 ; SI: s_sub_i32 24 25 ; EG-DAG: SUBB_UINT 26 ; EG-DAG: SUB_INT 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 33 ret void 34 } 35 36 ; FUNC-LABEL: {{^}}v_usubo_i32: 37 ; SI: v_subrev_i32_e32 38 39 ; EG-DAG: SUBB_UINT 40 ; EG-DAG: SUB_INT 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 49 ret void 50 } 51 52 ; FUNC-LABEL: {{^}}s_usubo_i64: 53 ; SI: s_sub_u32 54 ; SI: s_subb_u32 55 56 ; EG-DAG: SUBB_UINT 57 ; EG-DAG: SUB_INT 58 ; EG-DAG: SUB_INT 59 ; EG: SUB_INT 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 66 ret void 67 } 68 69 ; FUNC-LABEL: {{^}}v_usubo_i64: 70 ; SI: v_sub_i32 71 ; SI: v_subb_u32 72 73 ; EG-DAG: SUBB_UINT 74 ; EG-DAG: SUB_INT 75 ; EG-DAG: SUB_INT 76 ; EG: SUB_INT 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 85 ret void 86 } 87
