1 ; RUN: llc < %s -O0 -march=x86-64 -mcpu=corei7 -verify-machineinstrs | FileCheck %s --check-prefix X64 2 3 @sc64 = external global i64 4 5 define void @atomic_fetch_add64() nounwind { 6 ; X64-LABEL: atomic_fetch_add64: 7 ; X32-LABEL: atomic_fetch_add64: 8 entry: 9 %t1 = atomicrmw add i64* @sc64, i64 1 acquire 10 ; X64: lock 11 ; X64: incq 12 %t2 = atomicrmw add i64* @sc64, i64 3 acquire 13 ; X64: lock 14 ; X64: addq $3 15 %t3 = atomicrmw add i64* @sc64, i64 5 acquire 16 ; X64: lock 17 ; X64: xaddq 18 %t4 = atomicrmw add i64* @sc64, i64 %t3 acquire 19 ; X64: lock 20 ; X64: addq 21 ret void 22 ; X64: ret 23 } 24 25 define void @atomic_fetch_sub64() nounwind { 26 ; X64-LABEL: atomic_fetch_sub64: 27 ; X32-LABEL: atomic_fetch_sub64: 28 %t1 = atomicrmw sub i64* @sc64, i64 1 acquire 29 ; X64: lock 30 ; X64: decq 31 %t2 = atomicrmw sub i64* @sc64, i64 3 acquire 32 ; X64: lock 33 ; X64: subq $3 34 %t3 = atomicrmw sub i64* @sc64, i64 5 acquire 35 ; X64: lock 36 ; X64: xaddq 37 %t4 = atomicrmw sub i64* @sc64, i64 %t3 acquire 38 ; X64: lock 39 ; X64: subq 40 ret void 41 ; X64: ret 42 } 43 44 define void @atomic_fetch_and64() nounwind { 45 ; X64-LABEL: atomic_fetch_and64: 46 ; X32-LABEL: atomic_fetch_and64: 47 %t1 = atomicrmw and i64* @sc64, i64 3 acquire 48 ; X64: lock 49 ; X64: andq $3 50 %t2 = atomicrmw and i64* @sc64, i64 5 acquire 51 ; X64: andq 52 ; X64: lock 53 ; X64: cmpxchgq 54 %t3 = atomicrmw and i64* @sc64, i64 %t2 acquire 55 ; X64: lock 56 ; X64: andq 57 ret void 58 ; X64: ret 59 } 60 61 define void @atomic_fetch_or64() nounwind { 62 ; X64-LABEL: atomic_fetch_or64: 63 ; X32-LABEL: atomic_fetch_or64: 64 %t1 = atomicrmw or i64* @sc64, i64 3 acquire 65 ; X64: lock 66 ; X64: orq $3 67 %t2 = atomicrmw or i64* @sc64, i64 5 acquire 68 ; X64: orq 69 ; X64: lock 70 ; X64: cmpxchgq 71 %t3 = atomicrmw or i64* @sc64, i64 %t2 acquire 72 ; X64: lock 73 ; X64: orq 74 ret void 75 ; X64: ret 76 } 77 78 define void @atomic_fetch_xor64() nounwind { 79 ; X64-LABEL: atomic_fetch_xor64: 80 ; X32-LABEL: atomic_fetch_xor64: 81 %t1 = atomicrmw xor i64* @sc64, i64 3 acquire 82 ; X64: lock 83 ; X64: xorq $3 84 %t2 = atomicrmw xor i64* @sc64, i64 5 acquire 85 ; X64: xorq 86 ; X64: lock 87 ; X64: cmpxchgq 88 %t3 = atomicrmw xor i64* @sc64, i64 %t2 acquire 89 ; X64: lock 90 ; X64: xorq 91 ret void 92 ; X64: ret 93 } 94 95 define void @atomic_fetch_nand64(i64 %x) nounwind { 96 ; X64-LABEL: atomic_fetch_nand64: 97 ; X32-LABEL: atomic_fetch_nand64: 98 %t1 = atomicrmw nand i64* @sc64, i64 %x acquire 99 ; X64: andq 100 ; X64: notq 101 ; X64: lock 102 ; X64: cmpxchgq 103 ; X32: andl 104 ; X32: andl 105 ; X32: notl 106 ; X32: notl 107 ; X32: lock 108 ; X32: cmpxchg8b 109 ret void 110 ; X64: ret 111 ; X32: ret 112 } 113 114 define void @atomic_fetch_max64(i64 %x) nounwind { 115 ; X64-LABEL: atomic_fetch_max64: 116 ; X32-LABEL: atomic_fetch_max64: 117 %t1 = atomicrmw max i64* @sc64, i64 %x acquire 118 ; X64: subq 119 ; X64: cmov 120 ; X64: lock 121 ; X64: cmpxchgq 122 123 ; X32: cmpl 124 ; X32: cmpl 125 ; X32: cmov 126 ; X32: cmov 127 ; X32: cmov 128 ; X32: lock 129 ; X32: cmpxchg8b 130 ret void 131 ; X64: ret 132 ; X32: ret 133 } 134 135 define void @atomic_fetch_min64(i64 %x) nounwind { 136 ; X64-LABEL: atomic_fetch_min64: 137 ; X32-LABEL: atomic_fetch_min64: 138 %t1 = atomicrmw min i64* @sc64, i64 %x acquire 139 ; X64: subq 140 ; X64: cmov 141 ; X64: lock 142 ; X64: cmpxchgq 143 144 ; X32: cmpl 145 ; X32: cmpl 146 ; X32: cmov 147 ; X32: cmov 148 ; X32: cmov 149 ; X32: lock 150 ; X32: cmpxchg8b 151 ret void 152 ; X64: ret 153 ; X32: ret 154 } 155 156 define void @atomic_fetch_umax64(i64 %x) nounwind { 157 ; X64-LABEL: atomic_fetch_umax64: 158 ; X32-LABEL: atomic_fetch_umax64: 159 %t1 = atomicrmw umax i64* @sc64, i64 %x acquire 160 ; X64: subq 161 ; X64: cmov 162 ; X64: lock 163 ; X64: cmpxchgq 164 165 ; X32: cmpl 166 ; X32: cmpl 167 ; X32: cmov 168 ; X32: cmov 169 ; X32: cmov 170 ; X32: lock 171 ; X32: cmpxchg8b 172 ret void 173 ; X64: ret 174 ; X32: ret 175 } 176 177 define void @atomic_fetch_umin64(i64 %x) nounwind { 178 ; X64-LABEL: atomic_fetch_umin64: 179 ; X32-LABEL: atomic_fetch_umin64: 180 %t1 = atomicrmw umin i64* @sc64, i64 %x acquire 181 ; X64: subq 182 ; X64: cmov 183 ; X64: lock 184 ; X64: cmpxchgq 185 186 ; X32: cmpl 187 ; X32: cmpl 188 ; X32: cmov 189 ; X32: cmov 190 ; X32: cmov 191 ; X32: lock 192 ; X32: cmpxchg8b 193 ret void 194 ; X64: ret 195 ; X32: ret 196 } 197 198 define void @atomic_fetch_cmpxchg64() nounwind { 199 ; X64-LABEL: atomic_fetch_cmpxchg64: 200 ; X32-LABEL: atomic_fetch_cmpxchg64: 201 %t1 = cmpxchg i64* @sc64, i64 0, i64 1 acquire acquire 202 ; X64: lock 203 ; X64: cmpxchgq 204 ; X32: lock 205 ; X32: cmpxchg8b 206 ret void 207 ; X64: ret 208 ; X32: ret 209 } 210 211 define void @atomic_fetch_store64(i64 %x) nounwind { 212 ; X64-LABEL: atomic_fetch_store64: 213 ; X32-LABEL: atomic_fetch_store64: 214 store atomic i64 %x, i64* @sc64 release, align 8 215 ; X64-NOT: lock 216 ; X64: movq 217 ; X32: lock 218 ; X32: cmpxchg8b 219 ret void 220 ; X64: ret 221 ; X32: ret 222 } 223 224 define void @atomic_fetch_swap64(i64 %x) nounwind { 225 ; X64-LABEL: atomic_fetch_swap64: 226 ; X32-LABEL: atomic_fetch_swap64: 227 %t1 = atomicrmw xchg i64* @sc64, i64 %x acquire 228 ; X64-NOT: lock 229 ; X64: xchgq 230 ; X32: lock 231 ; X32: xchg8b 232 ret void 233 ; X64: ret 234 ; X32: ret 235 } 236
