1 ; RUN: opt < %s -constprop -S | FileCheck %s 2 3 4 declare {i8, i1} @llvm.uadd.with.overflow.i8(i8, i8) 5 declare {i8, i1} @llvm.usub.with.overflow.i8(i8, i8) 6 declare {i8, i1} @llvm.umul.with.overflow.i8(i8, i8) 7 8 declare {i8, i1} @llvm.sadd.with.overflow.i8(i8, i8) 9 declare {i8, i1} @llvm.ssub.with.overflow.i8(i8, i8) 10 declare {i8, i1} @llvm.smul.with.overflow.i8(i8, i8) 11 12 ;;----------------------------- 13 ;; uadd 14 ;;----------------------------- 15 16 define {i8, i1} @uadd_1() nounwind { 17 entry: 18 %t = call {i8, i1} @llvm.uadd.with.overflow.i8(i8 42, i8 100) 19 ret {i8, i1} %t 20 21 ; CHECK: @uadd_1 22 ; CHECK: ret { i8, i1 } { i8 -114, i1 false } 23 } 24 25 define {i8, i1} @uadd_2() nounwind { 26 entry: 27 %t = call {i8, i1} @llvm.uadd.with.overflow.i8(i8 142, i8 120) 28 ret {i8, i1} %t 29 30 ; CHECK: @uadd_2 31 ; CHECK: ret { i8, i1 } { i8 6, i1 true } 32 } 33 34 ;;----------------------------- 35 ;; usub 36 ;;----------------------------- 37 38 define {i8, i1} @usub_1() nounwind { 39 entry: 40 %t = call {i8, i1} @llvm.usub.with.overflow.i8(i8 4, i8 2) 41 ret {i8, i1} %t 42 43 ; CHECK: @usub_1 44 ; CHECK: ret { i8, i1 } { i8 2, i1 false } 45 } 46 47 define {i8, i1} @usub_2() nounwind { 48 entry: 49 %t = call {i8, i1} @llvm.usub.with.overflow.i8(i8 4, i8 6) 50 ret {i8, i1} %t 51 52 ; CHECK: @usub_2 53 ; CHECK: ret { i8, i1 } { i8 -2, i1 true } 54 } 55 56 ;;----------------------------- 57 ;; umul 58 ;;----------------------------- 59 60 define {i8, i1} @umul_1() nounwind { 61 entry: 62 %t = call {i8, i1} @llvm.umul.with.overflow.i8(i8 100, i8 3) 63 ret {i8, i1} %t 64 65 ; CHECK: @umul_1 66 ; CHECK: ret { i8, i1 } { i8 44, i1 true } 67 } 68 69 define {i8, i1} @umul_2() nounwind { 70 entry: 71 %t = call {i8, i1} @llvm.umul.with.overflow.i8(i8 100, i8 2) 72 ret {i8, i1} %t 73 74 ; CHECK: @umul_2 75 ; CHECK: ret { i8, i1 } { i8 -56, i1 false } 76 } 77 78 ;;----------------------------- 79 ;; sadd 80 ;;----------------------------- 81 82 define {i8, i1} @sadd_1() nounwind { 83 entry: 84 %t = call {i8, i1} @llvm.sadd.with.overflow.i8(i8 42, i8 2) 85 ret {i8, i1} %t 86 87 ; CHECK: @sadd_1 88 ; CHECK: ret { i8, i1 } { i8 44, i1 false } 89 } 90 91 define {i8, i1} @sadd_2() nounwind { 92 entry: 93 %t = call {i8, i1} @llvm.sadd.with.overflow.i8(i8 120, i8 10) 94 ret {i8, i1} %t 95 96 ; CHECK: @sadd_2 97 ; CHECK: ret { i8, i1 } { i8 -126, i1 true } 98 } 99 100 define {i8, i1} @sadd_3() nounwind { 101 entry: 102 %t = call {i8, i1} @llvm.sadd.with.overflow.i8(i8 -120, i8 10) 103 ret {i8, i1} %t 104 105 ; CHECK: @sadd_3 106 ; CHECK: ret { i8, i1 } { i8 -110, i1 false } 107 } 108 109 define {i8, i1} @sadd_4() nounwind { 110 entry: 111 %t = call {i8, i1} @llvm.sadd.with.overflow.i8(i8 -120, i8 -10) 112 ret {i8, i1} %t 113 114 ; CHECK: @sadd_4 115 ; CHECK: ret { i8, i1 } { i8 126, i1 true } 116 } 117 118 define {i8, i1} @sadd_5() nounwind { 119 entry: 120 %t = call {i8, i1} @llvm.sadd.with.overflow.i8(i8 2, i8 -10) 121 ret {i8, i1} %t 122 123 ; CHECK: @sadd_5 124 ; CHECK: ret { i8, i1 } { i8 -8, i1 false } 125 } 126 127 128 ;;----------------------------- 129 ;; ssub 130 ;;----------------------------- 131 132 define {i8, i1} @ssub_1() nounwind { 133 entry: 134 %t = call {i8, i1} @llvm.ssub.with.overflow.i8(i8 4, i8 2) 135 ret {i8, i1} %t 136 137 ; CHECK: @ssub_1 138 ; CHECK: ret { i8, i1 } { i8 2, i1 false } 139 } 140 141 define {i8, i1} @ssub_2() nounwind { 142 entry: 143 %t = call {i8, i1} @llvm.ssub.with.overflow.i8(i8 4, i8 6) 144 ret {i8, i1} %t 145 146 ; CHECK: @ssub_2 147 ; CHECK: ret { i8, i1 } { i8 -2, i1 false } 148 } 149 150 define {i8, i1} @ssub_3() nounwind { 151 entry: 152 %t = call {i8, i1} @llvm.ssub.with.overflow.i8(i8 -10, i8 120) 153 ret {i8, i1} %t 154 155 ; CHECK: @ssub_3 156 ; CHECK: ret { i8, i1 } { i8 126, i1 true } 157 } 158 159 define {i8, i1} @ssub_3b() nounwind { 160 entry: 161 %t = call {i8, i1} @llvm.ssub.with.overflow.i8(i8 -10, i8 10) 162 ret {i8, i1} %t 163 164 ; CHECK: @ssub_3b 165 ; CHECK: ret { i8, i1 } { i8 -20, i1 false } 166 } 167 168 define {i8, i1} @ssub_4() nounwind { 169 entry: 170 %t = call {i8, i1} @llvm.ssub.with.overflow.i8(i8 120, i8 -10) 171 ret {i8, i1} %t 172 173 ; CHECK: @ssub_4 174 ; CHECK: ret { i8, i1 } { i8 -126, i1 true } 175 } 176 177 define {i8, i1} @ssub_4b() nounwind { 178 entry: 179 %t = call {i8, i1} @llvm.ssub.with.overflow.i8(i8 20, i8 -10) 180 ret {i8, i1} %t 181 182 ; CHECK: @ssub_4b 183 ; CHECK: ret { i8, i1 } { i8 30, i1 false } 184 } 185 186 define {i8, i1} @ssub_5() nounwind { 187 entry: 188 %t = call {i8, i1} @llvm.ssub.with.overflow.i8(i8 -20, i8 -10) 189 ret {i8, i1} %t 190 191 ; CHECK: @ssub_5 192 ; CHECK: ret { i8, i1 } { i8 -10, i1 false } 193 } 194 195 ;;----------------------------- 196 ;; smul 197 ;;----------------------------- 198 199 ; rdar://8501501 200 define {i8, i1} @smul_1() nounwind { 201 entry: 202 %t = call {i8, i1} @llvm.smul.with.overflow.i8(i8 -20, i8 -10) 203 ret {i8, i1} %t 204 205 ; CHECK: @smul_1 206 ; CHECK: ret { i8, i1 } { i8 -56, i1 true } 207 } 208
