1 ; RUN: llc < %s -O0 -mtriple=x86_64-unknown-unknown -mcpu=corei7 -verify-machineinstrs -show-mc-encoding | FileCheck %s --check-prefix X64 2 ; RUN: llc < %s -O0 -mtriple=i386-unknown-unknown -mcpu=corei7 -verify-machineinstrs | FileCheck %s --check-prefix X32 3 4 @sc16 = external global i16 5 6 define void @atomic_fetch_add16() nounwind { 7 ; X64-LABEL: atomic_fetch_add16 8 ; X32-LABEL: atomic_fetch_add16 9 entry: 10 ; 32-bit 11 %t1 = atomicrmw add i16* @sc16, i16 1 acquire 12 ; X64: lock 13 ; X64: incw 14 ; X32: lock 15 ; X32: incw 16 %t2 = atomicrmw add i16* @sc16, i16 3 acquire 17 ; X64: lock 18 ; X64: addw $3, {{.*}} # encoding: [0x66,0xf0 19 ; X32: lock 20 ; X32: addw $3 21 %t3 = atomicrmw add i16* @sc16, i16 5 acquire 22 ; X64: lock 23 ; X64: xaddw {{.*}} # encoding: [0x66,0xf0 24 ; X32: lock 25 ; X32: xaddw 26 %t4 = atomicrmw add i16* @sc16, i16 %t3 acquire 27 ; X64: lock 28 ; X64: addw {{.*}} # encoding: [0x66,0xf0 29 ; X32: lock 30 ; X32: addw 31 ret void 32 ; X64: ret 33 ; X32: ret 34 } 35 36 define void @atomic_fetch_sub16() nounwind { 37 ; X64-LABEL: atomic_fetch_sub16 38 ; X32-LABEL: atomic_fetch_sub16 39 %t1 = atomicrmw sub i16* @sc16, i16 1 acquire 40 ; X64: lock 41 ; X64: decw 42 ; X32: lock 43 ; X32: decw 44 %t2 = atomicrmw sub i16* @sc16, i16 3 acquire 45 ; X64: lock 46 ; X64: subw $3, {{.*}} # encoding: [0x66,0xf0 47 ; X32: lock 48 ; X32: subw $3 49 %t3 = atomicrmw sub i16* @sc16, i16 5 acquire 50 ; X64: lock 51 ; X64: xaddw {{.*}} # encoding: [0x66,0xf0 52 ; X32: lock 53 ; X32: xaddw 54 %t4 = atomicrmw sub i16* @sc16, i16 %t3 acquire 55 ; X64: lock 56 ; X64: subw {{.*}} # encoding: [0x66,0xf0 57 ; X32: lock 58 ; X32: subw 59 ret void 60 ; X64: ret 61 ; X32: ret 62 } 63 64 define void @atomic_fetch_and16() nounwind { 65 ; X64-LABEL: atomic_fetch_and16 66 ; X32-LABEL: atomic_fetch_and16 67 %t1 = atomicrmw and i16* @sc16, i16 3 acquire 68 ; X64: lock 69 ; X64: andw $3, {{.*}} # encoding: [0x66,0xf0 70 ; X32: lock 71 ; X32: andw $3 72 %t2 = atomicrmw and i16* @sc16, i16 5 acquire 73 ; X64: andl 74 ; X64: lock 75 ; X64: cmpxchgw 76 ; X32: andl 77 ; X32: lock 78 ; X32: cmpxchgw 79 %t3 = atomicrmw and i16* @sc16, i16 %t2 acquire 80 ; X64: lock 81 ; X64: andw {{.*}} # encoding: [0x66,0xf0 82 ; X32: lock 83 ; X32: andw 84 ret void 85 ; X64: ret 86 ; X32: ret 87 } 88 89 define void @atomic_fetch_or16() nounwind { 90 ; X64-LABEL: atomic_fetch_or16 91 ; X32-LABEL: atomic_fetch_or16 92 %t1 = atomicrmw or i16* @sc16, i16 3 acquire 93 ; X64: lock 94 ; X64: orw $3, {{.*}} # encoding: [0x66,0xf0 95 ; X32: lock 96 ; X32: orw $3 97 %t2 = atomicrmw or i16* @sc16, i16 5 acquire 98 ; X64: orl 99 ; X64: lock 100 ; X64: cmpxchgw 101 ; X32: orl 102 ; X32: lock 103 ; X32: cmpxchgw 104 %t3 = atomicrmw or i16* @sc16, i16 %t2 acquire 105 ; X64: lock 106 ; X64: orw {{.*}} # encoding: [0x66,0xf0 107 ; X32: lock 108 ; X32: orw 109 ret void 110 ; X64: ret 111 ; X32: ret 112 } 113 114 define void @atomic_fetch_xor16() nounwind { 115 ; X64-LABEL: atomic_fetch_xor16 116 ; X32-LABEL: atomic_fetch_xor16 117 %t1 = atomicrmw xor i16* @sc16, i16 3 acquire 118 ; X64: lock 119 ; X64: xorw $3, {{.*}} # encoding: [0x66,0xf0 120 ; X32: lock 121 ; X32: xorw $3 122 %t2 = atomicrmw xor i16* @sc16, i16 5 acquire 123 ; X64: xorl 124 ; X64: lock 125 ; X64: cmpxchgw 126 ; X32: xorl 127 ; X32: lock 128 ; X32: cmpxchgw 129 %t3 = atomicrmw xor i16* @sc16, i16 %t2 acquire 130 ; X64: lock 131 ; X64: xorw {{.*}} # encoding: [0x66,0xf0 132 ; X32: lock 133 ; X32: xorw 134 ret void 135 ; X64: ret 136 ; X32: ret 137 } 138 139 define void @atomic_fetch_nand16(i16 %x) nounwind { 140 ; X64-LABEL: atomic_fetch_nand16 141 ; X32-LABEL: atomic_fetch_nand16 142 %t1 = atomicrmw nand i16* @sc16, i16 %x acquire 143 ; X64: andl 144 ; X64: notl 145 ; X64: lock 146 ; X64: cmpxchgw 147 ; X32: andl 148 ; X32: notl 149 ; X32: lock 150 ; X32: cmpxchgw 151 ret void 152 ; X64: ret 153 ; X32: ret 154 } 155 156 define void @atomic_fetch_max16(i16 %x) nounwind { 157 %t1 = atomicrmw max i16* @sc16, i16 %x acquire 158 ; X64: movswl 159 ; X64: movswl 160 ; X64: subl 161 ; X64: cmov 162 ; X64: lock 163 ; X64: cmpxchgw 164 165 ; X32: movswl 166 ; X32: movswl 167 ; X32: subl 168 ; X32: cmov 169 ; X32: lock 170 ; X32: cmpxchgw 171 ret void 172 ; X64: ret 173 ; X32: ret 174 } 175 176 define void @atomic_fetch_min16(i16 %x) nounwind { 177 %t1 = atomicrmw min i16* @sc16, i16 %x acquire 178 ; X64: movswl 179 ; X64: movswl 180 ; X64: subl 181 ; X64: cmov 182 ; X64: lock 183 ; X64: cmpxchgw 184 185 ; X32: movswl 186 ; X32: movswl 187 ; X32: subl 188 ; X32: cmov 189 ; X32: lock 190 ; X32: cmpxchgw 191 ret void 192 ; X64: ret 193 ; X32: ret 194 } 195 196 define void @atomic_fetch_umax16(i16 %x) nounwind { 197 %t1 = atomicrmw umax i16* @sc16, i16 %x acquire 198 ; X64: movzwl 199 ; X64: movzwl 200 ; X64: subl 201 ; X64: cmov 202 ; X64: lock 203 ; X64: cmpxchgw 204 205 ; X32: movzwl 206 ; X32: movzwl 207 ; X32: subl 208 ; X32: cmov 209 ; X32: lock 210 ; X32: cmpxchgw 211 ret void 212 ; X64: ret 213 ; X32: ret 214 } 215 216 define void @atomic_fetch_umin16(i16 %x) nounwind { 217 %t1 = atomicrmw umin i16* @sc16, i16 %x acquire 218 ; X64: movzwl 219 ; X64: movzwl 220 ; X64: subl 221 ; X64: cmov 222 ; X64: lock 223 ; X64: cmpxchgw 224 225 ; X32: movzwl 226 ; X32: movzwl 227 ; X32: subl 228 ; X32: cmov 229 ; X32: lock 230 ; X32: cmpxchgw 231 ret void 232 ; X64: ret 233 ; X32: ret 234 } 235 236 define void @atomic_fetch_cmpxchg16() nounwind { 237 %t1 = cmpxchg i16* @sc16, i16 0, i16 1 acquire acquire 238 ; X64: lock 239 ; X64: cmpxchgw 240 ; X32: lock 241 ; X32: cmpxchgw 242 ret void 243 ; X64: ret 244 ; X32: ret 245 } 246 247 define void @atomic_fetch_store16(i16 %x) nounwind { 248 store atomic i16 %x, i16* @sc16 release, align 4 249 ; X64-NOT: lock 250 ; X64: movw 251 ; X32-NOT: lock 252 ; X32: movw 253 ret void 254 ; X64: ret 255 ; X32: ret 256 } 257 258 define void @atomic_fetch_swap16(i16 %x) nounwind { 259 %t1 = atomicrmw xchg i16* @sc16, i16 %x acquire 260 ; X64-NOT: lock 261 ; X64: xchgw 262 ; X32-NOT: lock 263 ; X32: xchgw 264 ret void 265 ; X64: ret 266 ; X32: ret 267 } 268
