1 ; RUN: llc < %s -verify-coalescing 2 ; PR12892 3 ; 4 ; Dead code elimination during coalesing causes a live range to split into two 5 ; virtual registers. Stale identity copies that had already been joined were 6 ; interfering with the liveness computations. 7 8 target triple = "i386-pc-linux-gnu" 9 10 define void @_ZN4llvm17AsmMatcherEmitter3runERNS_11raw_ostreamE() align 2 { 11 invoke void @_ZNK4llvm13CodeGenTarget12getAsmParserEv() 12 to label %1 unwind label %5 13 14 ; <label>:1 ; preds = %0 15 invoke void @_ZNK4llvm6Record16getValueAsStringENS_9StringRefE() 16 to label %4 unwind label %2 17 18 ; <label>:2 ; preds = %1 19 %3 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) 20 cleanup 21 unreachable 22 23 ; <label>:4 ; preds = %1 24 invoke void @_ZN4llvm18isCurrentDebugTypeEPKc() 25 to label %12 unwind label %7 26 27 ; <label>:5 ; preds = %0 28 %6 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) 29 cleanup 30 br label %33 31 32 ; <label>:7 ; preds = %4 33 %8 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) 34 cleanup 35 br label %9 36 37 ; <label>:9 ; preds = %28, %7 38 %10 = phi { i8*, i32 } [ %29, %28 ], [ %8, %7 ] 39 %11 = extractvalue { i8*, i32 } %10, 1 40 invoke fastcc void @_ZN12_GLOBAL__N_114AsmMatcherInfoD2Ev() 41 to label %32 unwind label %35 42 43 ; <label>:12 ; preds = %4 44 invoke void @_ZNK4llvm13CodeGenTarget10getRegBankEv() 45 to label %13 unwind label %16 46 47 ; <label>:13 ; preds = %12 48 br label %14 49 50 ; <label>:14 ; preds = %20, %13 51 %15 = icmp eq i32 undef, 0 52 br i1 %15, label %20, label %18 53 54 ; <label>:16 ; preds = %12 55 %17 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) 56 cleanup 57 br label %26 58 59 ; <label>:18 ; preds = %14 60 invoke void @_ZNSs4_Rep9_S_createEjjRKSaIcE() 61 to label %19 unwind label %21 62 63 ; <label>:19 ; preds = %18 64 unreachable 65 66 ; <label>:20 ; preds = %14 67 br label %14 68 69 ; <label>:21 ; preds = %18 70 %22 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) 71 cleanup 72 %23 = extractvalue { i8*, i32 } %22, 1 73 br i1 undef, label %26, label %24 74 75 ; <label>:24 ; preds = %21 76 br i1 undef, label %25, label %26 77 78 ; <label>:25 ; preds = %24 79 unreachable 80 81 ; <label>:26 ; preds = %24, %21, %16 82 %27 = phi i32 [ 0, %16 ], [ %23, %21 ], [ %23, %24 ] 83 invoke void @_ZNSt6vectorISt4pairISsSsESaIS1_EED1Ev() 84 to label %28 unwind label %30 85 86 ; <label>:28 ; preds = %26 87 %29 = insertvalue { i8*, i32 } undef, i32 %27, 1 88 br label %9 89 90 ; <label>:30 ; preds = %26 91 %31 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) 92 catch i8* null 93 unreachable 94 95 ; <label>:32 ; preds = %9 96 br label %33 97 98 ; <label>:33 ; preds = %32, %5 99 %34 = phi i32 [ undef, %5 ], [ %11, %32 ] 100 unreachable 101 102 ; <label>:35 ; preds = %9 103 %36 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) 104 catch i8* null 105 unreachable 106 } 107 108 declare void @_ZNK4llvm13CodeGenTarget12getAsmParserEv() 109 110 declare i32 @__gxx_personality_v0(...) 111 112 declare void @_ZNK4llvm6Record16getValueAsStringENS_9StringRefE() 113 114 declare void @_ZN4llvm18isCurrentDebugTypeEPKc() 115 116 declare fastcc void @_ZN12_GLOBAL__N_114AsmMatcherInfoD2Ev() unnamed_addr inlinehint align 2 117 118 declare hidden void @_ZNSt6vectorISt4pairISsSsESaIS1_EED1Ev() unnamed_addr align 2 119 120 declare void @_ZNSs4_Rep9_S_createEjjRKSaIcE() 121 122 declare void @_ZNK4llvm13CodeGenTarget10getRegBankEv() 123
