1 ; RUN: llc < %s -O0 -march=x86 -mcpu=corei7 -verify-machineinstrs | FileCheck %s --check-prefix X32 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 ; X32: addl 11 ; X32: adcl 12 ; X32: lock 13 ; X32: cmpxchg8b 14 %t2 = atomicrmw add i64* @sc64, i64 3 acquire 15 ; X32: addl 16 ; X32: adcl 17 ; X32: lock 18 ; X32: cmpxchg8b 19 %t3 = atomicrmw add i64* @sc64, i64 5 acquire 20 ; X32: addl 21 ; X32: adcl 22 ; X32: lock 23 ; X32: cmpxchg8b 24 %t4 = atomicrmw add i64* @sc64, i64 %t3 acquire 25 ; X32: addl 26 ; X32: adcl 27 ; X32: lock 28 ; X32: cmpxchg8b 29 ret void 30 ; X32: ret 31 } 32 33 define void @atomic_fetch_sub64() nounwind { 34 ; X64-LABEL: atomic_fetch_sub64: 35 ; X32-LABEL: atomic_fetch_sub64: 36 %t1 = atomicrmw sub i64* @sc64, i64 1 acquire 37 ; X32: addl $-1 38 ; X32: adcl $-1 39 ; X32: lock 40 ; X32: cmpxchg8b 41 %t2 = atomicrmw sub i64* @sc64, i64 3 acquire 42 ; X32: addl $-3 43 ; X32: adcl $-1 44 ; X32: lock 45 ; X32: cmpxchg8b 46 %t3 = atomicrmw sub i64* @sc64, i64 5 acquire 47 ; X32: addl $-5 48 ; X32: adcl $-1 49 ; X32: lock 50 ; X32: cmpxchg8b 51 %t4 = atomicrmw sub i64* @sc64, i64 %t3 acquire 52 ; X32: subl 53 ; X32: sbbl 54 ; X32: lock 55 ; X32: cmpxchg8b 56 ret void 57 ; X32: ret 58 } 59 60 define void @atomic_fetch_and64() nounwind { 61 ; X64-LABEL: atomic_fetch_and:64 62 ; X32-LABEL: atomic_fetch_and64: 63 %t1 = atomicrmw and i64* @sc64, i64 3 acquire 64 ; X32: andl $3 65 ; X32-NOT: andl 66 ; X32: lock 67 ; X32: cmpxchg8b 68 %t2 = atomicrmw and i64* @sc64, i64 4294967297 acquire 69 ; X32: andl $1 70 ; X32: andl $1 71 ; X32: lock 72 ; X32: cmpxchg8b 73 %t3 = atomicrmw and i64* @sc64, i64 %t2 acquire 74 ; X32: andl 75 ; X32: andl 76 ; X32: lock 77 ; X32: cmpxchg8b 78 ret void 79 ; X32: ret 80 } 81 82 define void @atomic_fetch_or64() nounwind { 83 ; X64-LABEL: atomic_fetch_or64: 84 ; X32-LABEL: atomic_fetch_or64: 85 %t1 = atomicrmw or i64* @sc64, i64 3 acquire 86 ; X32: orl $3 87 ; X32-NOT: orl 88 ; X32: lock 89 ; X32: cmpxchg8b 90 %t2 = atomicrmw or i64* @sc64, i64 4294967297 acquire 91 ; X32: orl $1 92 ; X32: orl $1 93 ; X32: lock 94 ; X32: cmpxchg8b 95 %t3 = atomicrmw or i64* @sc64, i64 %t2 acquire 96 ; X32: orl 97 ; X32: orl 98 ; X32: lock 99 ; X32: cmpxchg8b 100 ret void 101 ; X32: ret 102 } 103 104 define void @atomic_fetch_xor64() nounwind { 105 ; X64-LABEL: atomic_fetch_xor:64 106 ; X32-LABEL: atomic_fetch_xor64: 107 %t1 = atomicrmw xor i64* @sc64, i64 3 acquire 108 ; X32: xorl 109 ; X32-NOT: xorl 110 ; X32: lock 111 ; X32: cmpxchg8b 112 %t2 = atomicrmw xor i64* @sc64, i64 4294967297 acquire 113 ; X32: xorl $1 114 ; X32: xorl $1 115 ; X32: lock 116 ; X32: cmpxchg8b 117 %t3 = atomicrmw xor i64* @sc64, i64 %t2 acquire 118 ; X32: xorl 119 ; X32: xorl 120 ; X32: lock 121 ; X32: cmpxchg8b 122 ret void 123 ; X32: ret 124 } 125 126 define void @atomic_fetch_nand64(i64 %x) nounwind { 127 ; X64-LABEL: atomic_fetch_nand64: 128 ; X32-LABEL: atomic_fetch_nand64: 129 %t1 = atomicrmw nand i64* @sc64, i64 %x acquire 130 ; X32: andl 131 ; X32: andl 132 ; X32: notl 133 ; X32: notl 134 ; X32: lock 135 ; X32: cmpxchg8b 136 ret void 137 ; X32: ret 138 } 139 140 define void @atomic_fetch_max64(i64 %x) nounwind { 141 ; X64-LABEL: atomic_fetch_max:64 142 ; X32-LABEL: atomic_fetch_max64: 143 %t1 = atomicrmw max i64* @sc64, i64 %x acquire 144 ; X32: subl 145 ; X32: subl 146 ; X32: cmov 147 ; X32: cmov 148 ; X32: lock 149 ; X32: cmpxchg8b 150 ret void 151 ; X32: ret 152 } 153 154 define void @atomic_fetch_min64(i64 %x) nounwind { 155 ; X64-LABEL: atomic_fetch_min64: 156 ; X32-LABEL: atomic_fetch_min64: 157 %t1 = atomicrmw min i64* @sc64, i64 %x acquire 158 ; X32: subl 159 ; X32: subl 160 ; X32: cmov 161 ; X32: cmov 162 ; X32: lock 163 ; X32: cmpxchg8b 164 ret void 165 ; X32: ret 166 } 167 168 define void @atomic_fetch_umax64(i64 %x) nounwind { 169 ; X64-LABEL: atomic_fetch_umax:64 170 ; X32-LABEL: atomic_fetch_umax64: 171 %t1 = atomicrmw umax i64* @sc64, i64 %x acquire 172 ; X32: subl 173 ; X32: subl 174 ; X32: cmov 175 ; X32: cmov 176 ; X32: lock 177 ; X32: cmpxchg8b 178 ret void 179 ; X32: ret 180 } 181 182 define void @atomic_fetch_umin64(i64 %x) nounwind { 183 ; X64-LABEL: atomic_fetch_umin64: 184 ; X32-LABEL: atomic_fetch_umin64: 185 %t1 = atomicrmw umin i64* @sc64, i64 %x acquire 186 ; X32: subl 187 ; X32: subl 188 ; X32: cmov 189 ; X32: cmov 190 ; X32: lock 191 ; X32: cmpxchg8b 192 ret void 193 ; X32: ret 194 } 195 196 define void @atomic_fetch_cmpxchg64() nounwind { 197 ; X64-LABEL: atomic_fetch_cmpxchg:64 198 ; X32-LABEL: atomic_fetch_cmpxchg64: 199 %t1 = cmpxchg i64* @sc64, i64 0, i64 1 acquire acquire 200 ; X32: lock 201 ; X32: cmpxchg8b 202 ret void 203 ; X32: ret 204 } 205 206 define void @atomic_fetch_store64(i64 %x) nounwind { 207 ; X64-LABEL: atomic_fetch_store64: 208 ; X32-LABEL: atomic_fetch_store64: 209 store atomic i64 %x, i64* @sc64 release, align 8 210 ; X32: lock 211 ; X32: cmpxchg8b 212 ret void 213 ; X32: ret 214 } 215 216 define void @atomic_fetch_swap64(i64 %x) nounwind { 217 ; X64-LABEL: atomic_fetch_swap64: 218 ; X32-LABEL: atomic_fetch_swap64: 219 %t1 = atomicrmw xchg i64* @sc64, i64 %x acquire 220 ; X32: lock 221 ; X32: xchg8b 222 ret void 223 ; X32: ret 224 } 225
