1 ; RUN: llc < %s -mtriple=arm64-apple-ios7.0 -regalloc=greedy -regalloc-csr-first-time-cost=15 | FileCheck %s 2 3 ; This testing case is reduced from 197.parser prune_match function. 4 ; We make sure that we do not use callee-saved registers (x19 to x25). 5 ; rdar://16162005 6 7 ; CHECK-LABEL: prune_match: 8 ; CHECK: entry 9 ; CHECK: {{str x30|stp x29, x30}}, [sp 10 ; CHECK-NOT: stp x25, 11 ; CHECK-NOT: stp x23, x24 12 ; CHECK-NOT: stp x21, x22 13 ; CHECK-NOT: stp x19, x20 14 ; CHECK: if.end 15 ; CHECK: return 16 ; CHECK: {{ldr x30|ldp x29, x30}}, [sp 17 ; CHECK-NOT: ldp x19, x20 18 ; CHECK-NOT: ldp x21, x22 19 ; CHECK-NOT: ldp x23, x24 20 ; CHECK-NOT: ldp x25, 21 22 %struct.List_o_links_struct = type { i32, i32, i32, %struct.List_o_links_struct* } 23 %struct.Connector_struct = type { i16, i16, i8, i8, %struct.Connector_struct*, i8* } 24 %struct._RuneLocale = type { [8 x i8], [32 x i8], i32 (i8*, i64, i8**)*, i32 (i32, i8*, i64, i8**)*, i32, [256 x i32], [256 x i32], [256 x i32], %struct._RuneRange, %struct._RuneRange, %struct._RuneRange, i8*, i32, i32, %struct._RuneCharClass* } 25 %struct._RuneRange = type { i32, %struct._RuneEntry* } 26 %struct._RuneEntry = type { i32, i32, i32, i32* } 27 %struct._RuneCharClass = type { [14 x i8], i32 } 28 %struct.Exp_struct = type { i8, i8, i8, i8, %union.anon } 29 %union.anon = type { %struct.E_list_struct* } 30 %struct.E_list_struct = type { %struct.E_list_struct*, %struct.Exp_struct* } 31 %struct.domain_struct = type { i8*, i32, %struct.List_o_links_struct*, i32, i32, %struct.d_tree_leaf_struct*, %struct.domain_struct* } 32 %struct.d_tree_leaf_struct = type { %struct.domain_struct*, i32, %struct.d_tree_leaf_struct* } 33 @_DefaultRuneLocale = external global %struct._RuneLocale 34 declare i32 @__maskrune(i32, i64) #7 35 define fastcc i32 @prune_match(%struct.Connector_struct* nocapture readonly %a, %struct.Connector_struct* nocapture readonly %b) #9 { 36 entry: 37 %label56 = bitcast %struct.Connector_struct* %a to i16* 38 %0 = load i16, i16* %label56, align 2 39 %label157 = bitcast %struct.Connector_struct* %b to i16* 40 %1 = load i16, i16* %label157, align 2 41 %cmp = icmp eq i16 %0, %1 42 br i1 %cmp, label %if.end, label %return, !prof !988 43 if.end: 44 %priority = getelementptr inbounds %struct.Connector_struct, %struct.Connector_struct* %a, i64 0, i32 2 45 %2 = load i8, i8* %priority, align 1 46 %priority5 = getelementptr inbounds %struct.Connector_struct, %struct.Connector_struct* %b, i64 0, i32 2 47 %3 = load i8, i8* %priority5, align 1 48 %string = getelementptr inbounds %struct.Connector_struct, %struct.Connector_struct* %a, i64 0, i32 5 49 %4 = load i8*, i8** %string, align 8 50 %string7 = getelementptr inbounds %struct.Connector_struct, %struct.Connector_struct* %b, i64 0, i32 5 51 %5 = load i8*, i8** %string7, align 8 52 br label %while.cond 53 while.cond: 54 %lsr.iv27 = phi i64 [ %lsr.iv.next28, %if.end17 ], [ 0, %if.end ] 55 %scevgep55 = getelementptr i8, i8* %4, i64 %lsr.iv27 56 %6 = load i8, i8* %scevgep55, align 1 57 %idxprom.i.i = sext i8 %6 to i64 58 %isascii.i.i224 = icmp sgt i8 %6, -1 59 br i1 %isascii.i.i224, label %cond.true.i.i, label %cond.false.i.i, !prof !181 60 cond.true.i.i: 61 %arrayidx.i.i = getelementptr inbounds %struct._RuneLocale, %struct._RuneLocale* @_DefaultRuneLocale, i64 0, i32 5, i64 %idxprom.i.i 62 %7 = load i32, i32* %arrayidx.i.i, align 4 63 %and.i.i = and i32 %7, 32768 64 br label %isupper.exit 65 cond.false.i.i: 66 %8 = trunc i64 %idxprom.i.i to i8 67 %conv8 = sext i8 %8 to i32 68 %call3.i.i = tail call i32 @__maskrune(i32 %conv8, i64 32768) #3 69 br label %isupper.exit 70 isupper.exit: 71 %tobool1.sink.i.in.i = phi i32 [ %and.i.i, %cond.true.i.i ], [ %call3.i.i, %cond.false.i.i ] 72 %tobool1.sink.i.i = icmp eq i32 %tobool1.sink.i.in.i, 0 73 br i1 %tobool1.sink.i.i, label %lor.rhs, label %while.body, !prof !989 74 lor.rhs: 75 %sunkaddr = ptrtoint i8* %5 to i64 76 %sunkaddr58 = add i64 %sunkaddr, %lsr.iv27 77 %sunkaddr59 = inttoptr i64 %sunkaddr58 to i8* 78 %9 = load i8, i8* %sunkaddr59, align 1 79 %idxprom.i.i214 = sext i8 %9 to i64 80 %isascii.i.i213225 = icmp sgt i8 %9, -1 81 br i1 %isascii.i.i213225, label %cond.true.i.i217, label %cond.false.i.i219, !prof !181 82 cond.true.i.i217: 83 %arrayidx.i.i215 = getelementptr inbounds %struct._RuneLocale, %struct._RuneLocale* @_DefaultRuneLocale, i64 0, i32 5, i64 %idxprom.i.i214 84 %10 = load i32, i32* %arrayidx.i.i215, align 4 85 %and.i.i216 = and i32 %10, 32768 86 br label %isupper.exit223 87 cond.false.i.i219: 88 %11 = trunc i64 %idxprom.i.i214 to i8 89 %conv9 = sext i8 %11 to i32 90 %call3.i.i218 = tail call i32 @__maskrune(i32 %conv9, i64 32768) #3 91 br label %isupper.exit223 92 isupper.exit223: 93 %tobool1.sink.i.in.i220 = phi i32 [ %and.i.i216, %cond.true.i.i217 ], [ %call3.i.i218, %cond.false.i.i219 ] 94 %tobool1.sink.i.i221 = icmp eq i32 %tobool1.sink.i.in.i220, 0 95 br i1 %tobool1.sink.i.i221, label %while.end, label %while.body, !prof !990 96 while.body: 97 %sunkaddr60 = ptrtoint i8* %4 to i64 98 %sunkaddr61 = add i64 %sunkaddr60, %lsr.iv27 99 %sunkaddr62 = inttoptr i64 %sunkaddr61 to i8* 100 %12 = load i8, i8* %sunkaddr62, align 1 101 %sunkaddr63 = ptrtoint i8* %5 to i64 102 %sunkaddr64 = add i64 %sunkaddr63, %lsr.iv27 103 %sunkaddr65 = inttoptr i64 %sunkaddr64 to i8* 104 %13 = load i8, i8* %sunkaddr65, align 1 105 %cmp14 = icmp eq i8 %12, %13 106 br i1 %cmp14, label %if.end17, label %return, !prof !991 107 if.end17: 108 %lsr.iv.next28 = add i64 %lsr.iv27, 1 109 br label %while.cond 110 while.end: 111 %14 = or i8 %3, %2 112 %15 = icmp eq i8 %14, 0 113 br i1 %15, label %if.then23, label %if.else88, !prof !992 114 if.then23: 115 %sunkaddr66 = ptrtoint %struct.Connector_struct* %a to i64 116 %sunkaddr67 = add i64 %sunkaddr66, 16 117 %sunkaddr68 = inttoptr i64 %sunkaddr67 to i8** 118 %16 = load i8*, i8** %sunkaddr68, align 8 119 %17 = load i8, i8* %16, align 1 120 %cmp26 = icmp eq i8 %17, 83 121 %sunkaddr69 = ptrtoint i8* %4 to i64 122 %sunkaddr70 = add i64 %sunkaddr69, %lsr.iv27 123 %sunkaddr71 = inttoptr i64 %sunkaddr70 to i8* 124 %18 = load i8, i8* %sunkaddr71, align 1 125 br i1 %cmp26, label %land.lhs.true28, label %while.cond59.preheader, !prof !993 126 land.lhs.true28: 127 switch i8 %18, label %land.rhs.preheader [ 128 i8 112, label %land.lhs.true35 129 i8 0, label %return 130 ], !prof !994 131 land.lhs.true35: 132 %sunkaddr72 = ptrtoint i8* %5 to i64 133 %sunkaddr73 = add i64 %sunkaddr72, %lsr.iv27 134 %sunkaddr74 = inttoptr i64 %sunkaddr73 to i8* 135 %19 = load i8, i8* %sunkaddr74, align 1 136 switch i8 %19, label %land.rhs.preheader [ 137 i8 112, label %land.lhs.true43 138 ], !prof !995 139 land.lhs.true43: 140 %20 = ptrtoint i8* %16 to i64 141 %21 = sub i64 0, %20 142 %scevgep52 = getelementptr i8, i8* %4, i64 %21 143 %scevgep53 = getelementptr i8, i8* %scevgep52, i64 %lsr.iv27 144 %scevgep54 = getelementptr i8, i8* %scevgep53, i64 -1 145 %cmp45 = icmp eq i8* %scevgep54, null 146 br i1 %cmp45, label %return, label %lor.lhs.false47, !prof !996 147 lor.lhs.false47: 148 %22 = ptrtoint i8* %16 to i64 149 %23 = sub i64 0, %22 150 %scevgep47 = getelementptr i8, i8* %4, i64 %23 151 %scevgep48 = getelementptr i8, i8* %scevgep47, i64 %lsr.iv27 152 %scevgep49 = getelementptr i8, i8* %scevgep48, i64 -2 153 %cmp50 = icmp eq i8* %scevgep49, null 154 br i1 %cmp50, label %land.lhs.true52, label %while.cond59.preheader, !prof !997 155 land.lhs.true52: 156 %sunkaddr75 = ptrtoint i8* %4 to i64 157 %sunkaddr76 = add i64 %sunkaddr75, %lsr.iv27 158 %sunkaddr77 = add i64 %sunkaddr76, -1 159 %sunkaddr78 = inttoptr i64 %sunkaddr77 to i8* 160 %24 = load i8, i8* %sunkaddr78, align 1 161 %cmp55 = icmp eq i8 %24, 73 162 %cmp61233 = icmp eq i8 %18, 0 163 %or.cond265 = or i1 %cmp55, %cmp61233 164 br i1 %or.cond265, label %return, label %land.rhs.preheader, !prof !998 165 while.cond59.preheader: 166 %cmp61233.old = icmp eq i8 %18, 0 167 br i1 %cmp61233.old, label %return, label %land.rhs.preheader, !prof !999 168 land.rhs.preheader: 169 %scevgep33 = getelementptr i8, i8* %5, i64 %lsr.iv27 170 %scevgep43 = getelementptr i8, i8* %4, i64 %lsr.iv27 171 br label %land.rhs 172 land.rhs: 173 %lsr.iv = phi i64 [ 0, %land.rhs.preheader ], [ %lsr.iv.next, %if.then83 ] 174 %25 = phi i8 [ %27, %if.then83 ], [ %18, %land.rhs.preheader ] 175 %scevgep34 = getelementptr i8, i8* %scevgep33, i64 %lsr.iv 176 %26 = load i8, i8* %scevgep34, align 1 177 %cmp64 = icmp eq i8 %26, 0 178 br i1 %cmp64, label %return, label %while.body66, !prof !1000 179 while.body66: 180 %cmp68 = icmp eq i8 %25, 42 181 %cmp72 = icmp eq i8 %26, 42 182 %or.cond = or i1 %cmp68, %cmp72 183 br i1 %or.cond, label %if.then83, label %lor.lhs.false74, !prof !1001 184 lor.lhs.false74: 185 %cmp77 = icmp ne i8 %25, %26 186 %cmp81 = icmp eq i8 %25, 94 187 %or.cond208 = or i1 %cmp77, %cmp81 188 br i1 %or.cond208, label %return, label %if.then83, !prof !1002 189 if.then83: 190 %scevgep44 = getelementptr i8, i8* %scevgep43, i64 %lsr.iv 191 %scevgep45 = getelementptr i8, i8* %scevgep44, i64 1 192 %27 = load i8, i8* %scevgep45, align 1 193 %cmp61 = icmp eq i8 %27, 0 194 %lsr.iv.next = add i64 %lsr.iv, 1 195 br i1 %cmp61, label %return, label %land.rhs, !prof !999 196 if.else88: 197 %cmp89 = icmp eq i8 %2, 1 198 %cmp92 = icmp eq i8 %3, 2 199 %or.cond159 = and i1 %cmp89, %cmp92 200 br i1 %or.cond159, label %while.cond95.preheader, label %if.else123, !prof !1003 201 while.cond95.preheader: 202 %sunkaddr79 = ptrtoint i8* %4 to i64 203 %sunkaddr80 = add i64 %sunkaddr79, %lsr.iv27 204 %sunkaddr81 = inttoptr i64 %sunkaddr80 to i8* 205 %28 = load i8, i8* %sunkaddr81, align 1 206 %cmp97238 = icmp eq i8 %28, 0 207 br i1 %cmp97238, label %return, label %land.rhs99.preheader, !prof !1004 208 land.rhs99.preheader: 209 %scevgep31 = getelementptr i8, i8* %5, i64 %lsr.iv27 210 %scevgep40 = getelementptr i8, i8* %4, i64 %lsr.iv27 211 br label %land.rhs99 212 land.rhs99: 213 %lsr.iv17 = phi i64 [ 0, %land.rhs99.preheader ], [ %lsr.iv.next18, %if.then117 ] 214 %29 = phi i8 [ %31, %if.then117 ], [ %28, %land.rhs99.preheader ] 215 %scevgep32 = getelementptr i8, i8* %scevgep31, i64 %lsr.iv17 216 %30 = load i8, i8* %scevgep32, align 1 217 %cmp101 = icmp eq i8 %30, 0 218 br i1 %cmp101, label %return, label %while.body104, !prof !1005 219 while.body104: 220 %cmp107 = icmp eq i8 %29, %30 221 %cmp111 = icmp eq i8 %29, 42 222 %or.cond209 = or i1 %cmp107, %cmp111 223 %cmp115 = icmp eq i8 %30, 94 224 %or.cond210 = or i1 %or.cond209, %cmp115 225 br i1 %or.cond210, label %if.then117, label %return, !prof !1006 226 if.then117: 227 %scevgep41 = getelementptr i8, i8* %scevgep40, i64 %lsr.iv17 228 %scevgep42 = getelementptr i8, i8* %scevgep41, i64 1 229 %31 = load i8, i8* %scevgep42, align 1 230 %cmp97 = icmp eq i8 %31, 0 231 %lsr.iv.next18 = add i64 %lsr.iv17, 1 232 br i1 %cmp97, label %return, label %land.rhs99, !prof !1004 233 if.else123: 234 %cmp124 = icmp eq i8 %3, 1 235 %cmp127 = icmp eq i8 %2, 2 236 %or.cond160 = and i1 %cmp124, %cmp127 237 br i1 %or.cond160, label %while.cond130.preheader, label %return, !prof !1007 238 while.cond130.preheader: 239 %sunkaddr82 = ptrtoint i8* %4 to i64 240 %sunkaddr83 = add i64 %sunkaddr82, %lsr.iv27 241 %sunkaddr84 = inttoptr i64 %sunkaddr83 to i8* 242 %32 = load i8, i8* %sunkaddr84, align 1 243 %cmp132244 = icmp eq i8 %32, 0 244 br i1 %cmp132244, label %return, label %land.rhs134.preheader, !prof !1008 245 land.rhs134.preheader: 246 %scevgep29 = getelementptr i8, i8* %5, i64 %lsr.iv27 247 %scevgep37 = getelementptr i8, i8* %4, i64 %lsr.iv27 248 br label %land.rhs134 249 land.rhs134: 250 %lsr.iv22 = phi i64 [ 0, %land.rhs134.preheader ], [ %lsr.iv.next23, %if.then152 ] 251 %33 = phi i8 [ %35, %if.then152 ], [ %32, %land.rhs134.preheader ] 252 %scevgep30 = getelementptr i8, i8* %scevgep29, i64 %lsr.iv22 253 %34 = load i8, i8* %scevgep30, align 1 254 %cmp136 = icmp eq i8 %34, 0 255 br i1 %cmp136, label %return, label %while.body139, !prof !1009 256 while.body139: 257 %cmp142 = icmp eq i8 %33, %34 258 %cmp146 = icmp eq i8 %34, 42 259 %or.cond211 = or i1 %cmp142, %cmp146 260 %cmp150 = icmp eq i8 %33, 94 261 %or.cond212 = or i1 %or.cond211, %cmp150 262 br i1 %or.cond212, label %if.then152, label %return, !prof !1010 263 if.then152: 264 %scevgep38 = getelementptr i8, i8* %scevgep37, i64 %lsr.iv22 265 %scevgep39 = getelementptr i8, i8* %scevgep38, i64 1 266 %35 = load i8, i8* %scevgep39, align 1 267 %cmp132 = icmp eq i8 %35, 0 268 %lsr.iv.next23 = add i64 %lsr.iv22, 1 269 br i1 %cmp132, label %return, label %land.rhs134, !prof !1008 270 return: 271 %retval.0 = phi i32 [ 0, %entry ], [ 1, %land.lhs.true52 ], [ 1, %land.lhs.true43 ], [ 0, %if.else123 ], [ 1, %while.cond59.preheader ], [ 1, %while.cond95.preheader ], [ 1, %while.cond130.preheader ], [ 1, %land.lhs.true28 ], [ 1, %if.then83 ], [ 0, %lor.lhs.false74 ], [ 1, %land.rhs ], [ 1, %if.then117 ], [ 0, %while.body104 ], [ 1, %land.rhs99 ], [ 1, %if.then152 ], [ 0, %while.body139 ], [ 1, %land.rhs134 ], [ 0, %while.body ] 272 ret i32 %retval.0 273 } 274 !181 = !{!"branch_weights", i32 662038, i32 1} 275 !988 = !{!"branch_weights", i32 12091450, i32 1916} 276 !989 = !{!"branch_weights", i32 7564670, i32 4526781} 277 !990 = !{!"branch_weights", i32 7484958, i32 13283499} 278 !991 = !{!"branch_weights", i32 8677007, i32 4606493} 279 !992 = !{!"branch_weights", i32 -1172426948, i32 145094705} 280 !993 = !{!"branch_weights", i32 1468914, i32 5683688} 281 !994 = !{!"branch_weights", i32 114025221, i32 -1217548794, i32 -1199521551, i32 87712616} 282 !995 = !{!"branch_weights", i32 1853716452, i32 -444717951, i32 932776759} 283 !996 = !{!"branch_weights", i32 1004870, i32 20259} 284 !997 = !{!"branch_weights", i32 20071, i32 189} 285 !998 = !{!"branch_weights", i32 -1020255939, i32 572177766} 286 !999 = !{!"branch_weights", i32 2666513, i32 3466431} 287 !1000 = !{!"branch_weights", i32 5117635, i32 1859780} 288 !1001 = !{!"branch_weights", i32 354902465, i32 -1444604407} 289 !1002 = !{!"branch_weights", i32 -1762419279, i32 1592770684} 290 !1003 = !{!"branch_weights", i32 1435905930, i32 -1951930624} 291 !1004 = !{!"branch_weights", i32 1, i32 504888} 292 !1005 = !{!"branch_weights", i32 94662, i32 504888} 293 !1006 = !{!"branch_weights", i32 -1897793104, i32 160196332} 294 !1007 = !{!"branch_weights", i32 2074643678, i32 -29579071} 295 !1008 = !{!"branch_weights", i32 1, i32 226163} 296 !1009 = !{!"branch_weights", i32 58357, i32 226163} 297 !1010 = !{!"branch_weights", i32 -2072848646, i32 92907517} 298
