1; RUN: llc < %s -mtriple=x86_64-apple-macosx -regalloc=greedy | FileCheck %s 2 3; This testing case is reduced from 197.parser prune_match function. 4; We make sure register copies are not generated on isupper.exit blocks. 5 6; CHECK: isupper.exit 7; CHECK-NEXT: in Loop 8; CHECK-NEXT: testl 9; CHECK-NEXT: jne 10; CHECK: isupper.exit 11; CHECK-NEXT: in Loop 12; CHECK-NEXT: testl 13; CHECK-NEXT: je 14; CHECK: maskrune 15; CHECK: maskrune 16 17%struct.List_o_links_struct = type { i32, i32, i32, %struct.List_o_links_struct* } 18%struct.Connector_struct = type { i16, i16, i8, i8, %struct.Connector_struct*, i8* } 19%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* } 20%struct._RuneRange = type { i32, %struct._RuneEntry* } 21%struct._RuneEntry = type { i32, i32, i32, i32* } 22%struct._RuneCharClass = type { [14 x i8], i32 } 23%struct.Exp_struct = type { i8, i8, i8, i8, %union.anon } 24%union.anon = type { %struct.E_list_struct* } 25%struct.E_list_struct = type { %struct.E_list_struct*, %struct.Exp_struct* } 26%struct.domain_struct = type { i8*, i32, %struct.List_o_links_struct*, i32, i32, %struct.d_tree_leaf_struct*, %struct.domain_struct* } 27%struct.d_tree_leaf_struct = type { %struct.domain_struct*, i32, %struct.d_tree_leaf_struct* } 28@_DefaultRuneLocale = external global %struct._RuneLocale 29declare i32 @__maskrune(i32, i64) #7 30define fastcc i32 @prune_match(%struct.Connector_struct* nocapture readonly %a, %struct.Connector_struct* nocapture readonly %b) #9 { 31entry: 32 %label56 = bitcast %struct.Connector_struct* %a to i16* 33 %0 = load i16, i16* %label56, align 2 34 %label157 = bitcast %struct.Connector_struct* %b to i16* 35 %1 = load i16, i16* %label157, align 2 36 %cmp = icmp eq i16 %0, %1 37 br i1 %cmp, label %if.end, label %return, !prof !988 38if.end: 39 %priority = getelementptr inbounds %struct.Connector_struct, %struct.Connector_struct* %a, i64 0, i32 2 40 %2 = load i8, i8* %priority, align 1 41 %priority5 = getelementptr inbounds %struct.Connector_struct, %struct.Connector_struct* %b, i64 0, i32 2 42 %3 = load i8, i8* %priority5, align 1 43 %string = getelementptr inbounds %struct.Connector_struct, %struct.Connector_struct* %a, i64 0, i32 5 44 %4 = load i8*, i8** %string, align 8 45 %string7 = getelementptr inbounds %struct.Connector_struct, %struct.Connector_struct* %b, i64 0, i32 5 46 %5 = load i8*, i8** %string7, align 8 47 br label %while.cond 48while.cond: 49 %lsr.iv27 = phi i64 [ %lsr.iv.next28, %if.end17 ], [ 0, %if.end ] 50 %scevgep55 = getelementptr i8, i8* %4, i64 %lsr.iv27 51 %6 = load i8, i8* %scevgep55, align 1 52 %idxprom.i.i = sext i8 %6 to i64 53 %isascii.i.i224 = icmp sgt i8 %6, -1 54 br i1 %isascii.i.i224, label %cond.true.i.i, label %cond.false.i.i, !prof !181 55cond.true.i.i: 56 %arrayidx.i.i = getelementptr inbounds %struct._RuneLocale, %struct._RuneLocale* @_DefaultRuneLocale, i64 0, i32 5, i64 %idxprom.i.i 57 %7 = load i32, i32* %arrayidx.i.i, align 4 58 %and.i.i = and i32 %7, 32768 59 br label %isupper.exit 60cond.false.i.i: 61 %8 = trunc i64 %idxprom.i.i to i8 62 %conv8 = sext i8 %8 to i32 63 %call3.i.i = tail call i32 @__maskrune(i32 %conv8, i64 32768) #3 64 br label %isupper.exit 65isupper.exit: 66 %tobool1.sink.i.in.i = phi i32 [ %and.i.i, %cond.true.i.i ], [ %call3.i.i, %cond.false.i.i ] 67 %tobool1.sink.i.i = icmp eq i32 %tobool1.sink.i.in.i, 0 68 br i1 %tobool1.sink.i.i, label %lor.rhs, label %while.body, !prof !989 69lor.rhs: 70 %sunkaddr = ptrtoint i8* %5 to i64 71 %sunkaddr58 = add i64 %sunkaddr, %lsr.iv27 72 %sunkaddr59 = inttoptr i64 %sunkaddr58 to i8* 73 %9 = load i8, i8* %sunkaddr59, align 1 74 %idxprom.i.i214 = sext i8 %9 to i64 75 %isascii.i.i213225 = icmp sgt i8 %9, -1 76 br i1 %isascii.i.i213225, label %cond.true.i.i217, label %cond.false.i.i219, !prof !181 77cond.true.i.i217: 78 %arrayidx.i.i215 = getelementptr inbounds %struct._RuneLocale, %struct._RuneLocale* @_DefaultRuneLocale, i64 0, i32 5, i64 %idxprom.i.i214 79 %10 = load i32, i32* %arrayidx.i.i215, align 4 80 %and.i.i216 = and i32 %10, 32768 81 br label %isupper.exit223 82cond.false.i.i219: 83 %11 = trunc i64 %idxprom.i.i214 to i8 84 %conv9 = sext i8 %11 to i32 85 %call3.i.i218 = tail call i32 @__maskrune(i32 %conv9, i64 32768) #3 86 br label %isupper.exit223 87isupper.exit223: 88 %tobool1.sink.i.in.i220 = phi i32 [ %and.i.i216, %cond.true.i.i217 ], [ %call3.i.i218, %cond.false.i.i219 ] 89 %tobool1.sink.i.i221 = icmp eq i32 %tobool1.sink.i.in.i220, 0 90 br i1 %tobool1.sink.i.i221, label %while.end, label %while.body, !prof !990 91while.body: 92 %sunkaddr60 = ptrtoint i8* %4 to i64 93 %sunkaddr61 = add i64 %sunkaddr60, %lsr.iv27 94 %sunkaddr62 = inttoptr i64 %sunkaddr61 to i8* 95 %12 = load i8, i8* %sunkaddr62, align 1 96 %sunkaddr63 = ptrtoint i8* %5 to i64 97 %sunkaddr64 = add i64 %sunkaddr63, %lsr.iv27 98 %sunkaddr65 = inttoptr i64 %sunkaddr64 to i8* 99 %13 = load i8, i8* %sunkaddr65, align 1 100 %cmp14 = icmp eq i8 %12, %13 101 br i1 %cmp14, label %if.end17, label %return, !prof !991 102if.end17: 103 %lsr.iv.next28 = add i64 %lsr.iv27, 1 104 br label %while.cond 105while.end: 106 %14 = or i8 %3, %2 107 %15 = icmp eq i8 %14, 0 108 br i1 %15, label %if.then23, label %if.else88, !prof !992 109if.then23: 110 %sunkaddr66 = ptrtoint %struct.Connector_struct* %a to i64 111 %sunkaddr67 = add i64 %sunkaddr66, 16 112 %sunkaddr68 = inttoptr i64 %sunkaddr67 to i8** 113 %16 = load i8*, i8** %sunkaddr68, align 8 114 %17 = load i8, i8* %16, align 1 115 %cmp26 = icmp eq i8 %17, 83 116 %sunkaddr69 = ptrtoint i8* %4 to i64 117 %sunkaddr70 = add i64 %sunkaddr69, %lsr.iv27 118 %sunkaddr71 = inttoptr i64 %sunkaddr70 to i8* 119 %18 = load i8, i8* %sunkaddr71, align 1 120 br i1 %cmp26, label %land.lhs.true28, label %while.cond59.preheader, !prof !993 121land.lhs.true28: 122 switch i8 %18, label %land.rhs.preheader [ 123 i8 112, label %land.lhs.true35 124 i8 0, label %return 125 ], !prof !994 126land.lhs.true35: 127 %sunkaddr72 = ptrtoint i8* %5 to i64 128 %sunkaddr73 = add i64 %sunkaddr72, %lsr.iv27 129 %sunkaddr74 = inttoptr i64 %sunkaddr73 to i8* 130 %19 = load i8, i8* %sunkaddr74, align 1 131 switch i8 %19, label %land.rhs.preheader [ 132 i8 112, label %land.lhs.true43 133 ], !prof !995 134land.lhs.true43: 135 %20 = ptrtoint i8* %16 to i64 136 %21 = sub i64 0, %20 137 %scevgep52 = getelementptr i8, i8* %4, i64 %21 138 %scevgep53 = getelementptr i8, i8* %scevgep52, i64 %lsr.iv27 139 %scevgep54 = getelementptr i8, i8* %scevgep53, i64 -1 140 %cmp45 = icmp eq i8* %scevgep54, null 141 br i1 %cmp45, label %return, label %lor.lhs.false47, !prof !996 142lor.lhs.false47: 143 %22 = ptrtoint i8* %16 to i64 144 %23 = sub i64 0, %22 145 %scevgep47 = getelementptr i8, i8* %4, i64 %23 146 %scevgep48 = getelementptr i8, i8* %scevgep47, i64 %lsr.iv27 147 %scevgep49 = getelementptr i8, i8* %scevgep48, i64 -2 148 %cmp50 = icmp eq i8* %scevgep49, null 149 br i1 %cmp50, label %land.lhs.true52, label %while.cond59.preheader, !prof !997 150land.lhs.true52: 151 %sunkaddr75 = ptrtoint i8* %4 to i64 152 %sunkaddr76 = add i64 %sunkaddr75, %lsr.iv27 153 %sunkaddr77 = add i64 %sunkaddr76, -1 154 %sunkaddr78 = inttoptr i64 %sunkaddr77 to i8* 155 %24 = load i8, i8* %sunkaddr78, align 1 156 %cmp55 = icmp eq i8 %24, 73 157 %cmp61233 = icmp eq i8 %18, 0 158 %or.cond265 = or i1 %cmp55, %cmp61233 159 br i1 %or.cond265, label %return, label %land.rhs.preheader, !prof !998 160while.cond59.preheader: 161 %cmp61233.old = icmp eq i8 %18, 0 162 br i1 %cmp61233.old, label %return, label %land.rhs.preheader, !prof !999 163land.rhs.preheader: 164 %scevgep33 = getelementptr i8, i8* %5, i64 %lsr.iv27 165 %scevgep43 = getelementptr i8, i8* %4, i64 %lsr.iv27 166 br label %land.rhs 167land.rhs: 168 %lsr.iv = phi i64 [ 0, %land.rhs.preheader ], [ %lsr.iv.next, %if.then83 ] 169 %25 = phi i8 [ %27, %if.then83 ], [ %18, %land.rhs.preheader ] 170 %scevgep34 = getelementptr i8, i8* %scevgep33, i64 %lsr.iv 171 %26 = load i8, i8* %scevgep34, align 1 172 %cmp64 = icmp eq i8 %26, 0 173 br i1 %cmp64, label %return, label %while.body66, !prof !1000 174while.body66: 175 %cmp68 = icmp eq i8 %25, 42 176 %cmp72 = icmp eq i8 %26, 42 177 %or.cond = or i1 %cmp68, %cmp72 178 br i1 %or.cond, label %if.then83, label %lor.lhs.false74, !prof !1001 179lor.lhs.false74: 180 %cmp77 = icmp ne i8 %25, %26 181 %cmp81 = icmp eq i8 %25, 94 182 %or.cond208 = or i1 %cmp77, %cmp81 183 br i1 %or.cond208, label %return, label %if.then83, !prof !1002 184if.then83: 185 %scevgep44 = getelementptr i8, i8* %scevgep43, i64 %lsr.iv 186 %scevgep45 = getelementptr i8, i8* %scevgep44, i64 1 187 %27 = load i8, i8* %scevgep45, align 1 188 %cmp61 = icmp eq i8 %27, 0 189 %lsr.iv.next = add i64 %lsr.iv, 1 190 br i1 %cmp61, label %return, label %land.rhs, !prof !999 191if.else88: 192 %cmp89 = icmp eq i8 %2, 1 193 %cmp92 = icmp eq i8 %3, 2 194 %or.cond159 = and i1 %cmp89, %cmp92 195 br i1 %or.cond159, label %while.cond95.preheader, label %if.else123, !prof !1003 196while.cond95.preheader: 197 %sunkaddr79 = ptrtoint i8* %4 to i64 198 %sunkaddr80 = add i64 %sunkaddr79, %lsr.iv27 199 %sunkaddr81 = inttoptr i64 %sunkaddr80 to i8* 200 %28 = load i8, i8* %sunkaddr81, align 1 201 %cmp97238 = icmp eq i8 %28, 0 202 br i1 %cmp97238, label %return, label %land.rhs99.preheader, !prof !1004 203land.rhs99.preheader: 204 %scevgep31 = getelementptr i8, i8* %5, i64 %lsr.iv27 205 %scevgep40 = getelementptr i8, i8* %4, i64 %lsr.iv27 206 br label %land.rhs99 207land.rhs99: 208 %lsr.iv17 = phi i64 [ 0, %land.rhs99.preheader ], [ %lsr.iv.next18, %if.then117 ] 209 %29 = phi i8 [ %31, %if.then117 ], [ %28, %land.rhs99.preheader ] 210 %scevgep32 = getelementptr i8, i8* %scevgep31, i64 %lsr.iv17 211 %30 = load i8, i8* %scevgep32, align 1 212 %cmp101 = icmp eq i8 %30, 0 213 br i1 %cmp101, label %return, label %while.body104, !prof !1005 214while.body104: 215 %cmp107 = icmp eq i8 %29, %30 216 %cmp111 = icmp eq i8 %29, 42 217 %or.cond209 = or i1 %cmp107, %cmp111 218 %cmp115 = icmp eq i8 %30, 94 219 %or.cond210 = or i1 %or.cond209, %cmp115 220 br i1 %or.cond210, label %if.then117, label %return, !prof !1006 221if.then117: 222 %scevgep41 = getelementptr i8, i8* %scevgep40, i64 %lsr.iv17 223 %scevgep42 = getelementptr i8, i8* %scevgep41, i64 1 224 %31 = load i8, i8* %scevgep42, align 1 225 %cmp97 = icmp eq i8 %31, 0 226 %lsr.iv.next18 = add i64 %lsr.iv17, 1 227 br i1 %cmp97, label %return, label %land.rhs99, !prof !1004 228if.else123: 229 %cmp124 = icmp eq i8 %3, 1 230 %cmp127 = icmp eq i8 %2, 2 231 %or.cond160 = and i1 %cmp124, %cmp127 232 br i1 %or.cond160, label %while.cond130.preheader, label %return, !prof !1007 233while.cond130.preheader: 234 %sunkaddr82 = ptrtoint i8* %4 to i64 235 %sunkaddr83 = add i64 %sunkaddr82, %lsr.iv27 236 %sunkaddr84 = inttoptr i64 %sunkaddr83 to i8* 237 %32 = load i8, i8* %sunkaddr84, align 1 238 %cmp132244 = icmp eq i8 %32, 0 239 br i1 %cmp132244, label %return, label %land.rhs134.preheader, !prof !1008 240land.rhs134.preheader: 241 %scevgep29 = getelementptr i8, i8* %5, i64 %lsr.iv27 242 %scevgep37 = getelementptr i8, i8* %4, i64 %lsr.iv27 243 br label %land.rhs134 244land.rhs134: 245 %lsr.iv22 = phi i64 [ 0, %land.rhs134.preheader ], [ %lsr.iv.next23, %if.then152 ] 246 %33 = phi i8 [ %35, %if.then152 ], [ %32, %land.rhs134.preheader ] 247 %scevgep30 = getelementptr i8, i8* %scevgep29, i64 %lsr.iv22 248 %34 = load i8, i8* %scevgep30, align 1 249 %cmp136 = icmp eq i8 %34, 0 250 br i1 %cmp136, label %return, label %while.body139, !prof !1009 251while.body139: 252 %cmp142 = icmp eq i8 %33, %34 253 %cmp146 = icmp eq i8 %34, 42 254 %or.cond211 = or i1 %cmp142, %cmp146 255 %cmp150 = icmp eq i8 %33, 94 256 %or.cond212 = or i1 %or.cond211, %cmp150 257 br i1 %or.cond212, label %if.then152, label %return, !prof !1010 258if.then152: 259 %scevgep38 = getelementptr i8, i8* %scevgep37, i64 %lsr.iv22 260 %scevgep39 = getelementptr i8, i8* %scevgep38, i64 1 261 %35 = load i8, i8* %scevgep39, align 1 262 %cmp132 = icmp eq i8 %35, 0 263 %lsr.iv.next23 = add i64 %lsr.iv22, 1 264 br i1 %cmp132, label %return, label %land.rhs134, !prof !1008 265return: 266 %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 ] 267 ret i32 %retval.0 268} 269!181 = !{!"branch_weights", i32 662038, i32 1} 270!988 = !{!"branch_weights", i32 12091450, i32 1916} 271!989 = !{!"branch_weights", i32 7564670, i32 4526781} 272!990 = !{!"branch_weights", i32 7484958, i32 13283499} 273!991 = !{!"branch_weights", i32 8677007, i32 4606493} 274!992 = !{!"branch_weights", i32 -1172426948, i32 145094705} 275!993 = !{!"branch_weights", i32 1468914, i32 5683688} 276!994 = !{!"branch_weights", i32 114025221, i32 -1217548794, i32 -1199521551, i32 87712616} 277!995 = !{!"branch_weights", i32 1853716452, i32 -444717951, i32 932776759} 278!996 = !{!"branch_weights", i32 1004870, i32 20259} 279!997 = !{!"branch_weights", i32 20071, i32 189} 280!998 = !{!"branch_weights", i32 -1020255939, i32 572177766} 281!999 = !{!"branch_weights", i32 2666513, i32 3466431} 282!1000 = !{!"branch_weights", i32 5117635, i32 1859780} 283!1001 = !{!"branch_weights", i32 354902465, i32 -1444604407} 284!1002 = !{!"branch_weights", i32 -1762419279, i32 1592770684} 285!1003 = !{!"branch_weights", i32 1435905930, i32 -1951930624} 286!1004 = !{!"branch_weights", i32 1, i32 504888} 287!1005 = !{!"branch_weights", i32 94662, i32 504888} 288!1006 = !{!"branch_weights", i32 -1897793104, i32 160196332} 289!1007 = !{!"branch_weights", i32 2074643678, i32 -29579071} 290!1008 = !{!"branch_weights", i32 1, i32 226163} 291!1009 = !{!"branch_weights", i32 58357, i32 226163} 292!1010 = !{!"branch_weights", i32 -2072848646, i32 92907517} 293