1 ; RUN: llc -verify-machineinstrs -mcpu=i386 < %s 2 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32" 3 target triple = "i386-pc-linux-gnu" 4 5 ; The bb.i basic block gets split while emitting the schedule because 6 ; -mcpu=i386 doesn't have CMOV.' 7 ; 8 ; That causes the PHI to be updated wrong because the jumptable data structure is remembering the original MBB. 9 ; 10 ; -cgp-critical-edge-splitting=0 prevents the edge to PHI from being split. 11 12 @.str146 = external constant [4 x i8], align 1 13 @.str706 = external constant [4 x i8], align 1 14 @.str1189 = external constant [5 x i8], align 1 15 16 declare i32 @memcmp(i8* nocapture, i8* nocapture, i32) nounwind readonly 17 declare i32 @strlen(i8* nocapture) nounwind readonly 18 19 define hidden zeroext i8 @f(i8* %this, i8* %Name.0, i32 %Name.1, i8* noalias %NameLoc, i8* %Operands) nounwind align 2 { 20 bb.i: 21 %0 = icmp eq i8 undef, 0 22 %iftmp.285.0 = select i1 %0, i8* getelementptr inbounds ([5 x i8]* @.str1189, i32 0, i32 0), i8* getelementptr inbounds ([4 x i8]* @.str706, i32 0, i32 0) 23 %1 = call i32 @strlen(i8* %iftmp.285.0) nounwind readonly 24 switch i32 %Name.1, label %_ZNK4llvm12StringSwitchINS_9StringRefES1_E7DefaultERKS1_.exit [ 25 i32 3, label %bb1.i 26 i32 4, label %bb1.i1237 27 i32 5, label %bb1.i1266 28 i32 6, label %bb1.i1275 29 i32 2, label %bb1.i1434 30 i32 8, label %bb1.i1523 31 i32 7, label %bb1.i1537 32 ] 33 34 bb1.i: ; preds = %bb.i 35 unreachable 36 37 bb1.i1237: ; preds = %bb.i 38 br i1 undef, label %bb.i1820, label %bb1.i1241 39 40 bb1.i1241: ; preds = %bb1.i1237 41 unreachable 42 43 bb1.i1266: ; preds = %bb.i 44 unreachable 45 46 bb1.i1275: ; preds = %bb.i 47 unreachable 48 49 bb1.i1434: ; preds = %bb.i 50 unreachable 51 52 bb1.i1523: ; preds = %bb.i 53 unreachable 54 55 bb1.i1537: ; preds = %bb.i 56 unreachable 57 58 bb.i1820: ; preds = %bb1.i1237 59 br label %_ZNK4llvm12StringSwitchINS_9StringRefES1_E7DefaultERKS1_.exit 60 61 _ZNK4llvm12StringSwitchINS_9StringRefES1_E7DefaultERKS1_.exit: ; preds = %bb.i1820, %bb.i 62 %PatchedName.0.0 = phi i8* [ undef, %bb.i1820 ], [ %Name.0, %bb.i ] 63 br i1 undef, label %bb141, label %_ZNK4llvm9StringRef10startswithES0_.exit 64 65 _ZNK4llvm9StringRef10startswithES0_.exit: ; preds = %_ZNK4llvm12StringSwitchINS_9StringRefES1_E7DefaultERKS1_.exit 66 %2 = call i32 @memcmp(i8* %PatchedName.0.0, i8* getelementptr inbounds ([4 x i8]* @.str146, i32 0, i32 0), i32 3) nounwind readonly 67 unreachable 68 69 bb141: ; preds = %_ZNK4llvm12StringSwitchINS_9StringRefES1_E7DefaultERKS1_.exit 70 unreachable 71 } 72
