1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -passes=slp-vectorizer -mtriple=x86_64-apple-macosx10.9.0 -mcpu=corei7-avx -S < %s | FileCheck %s 3target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 4target triple = "x86_64-apple-macosx10.9.0" 5 6 7; This test used to crash because we were following phi chains incorrectly. 8; We used indices to get the incoming value of two phi nodes rather than 9; incoming block lookup. 10; This can give wrong results when the ordering of incoming 11; edges in the two phi nodes don't match. 12 13%0 = type { %1, %2 } 14%1 = type { double, double } 15%2 = type { double, double } 16 17 18;define fastcc void @bar() { 19define void @bar(i1 %arg) { 20; CHECK-LABEL: @bar( 21; CHECK-NEXT: bb: 22; CHECK-NEXT: [[I:%.*]] = getelementptr inbounds [[TMP0:%.*]], ptr undef, i64 0, i32 1, i32 0 23; CHECK-NEXT: [[I1:%.*]] = getelementptr inbounds [[TMP0]], ptr undef, i64 0, i32 1, i32 1 24; CHECK-NEXT: [[I2:%.*]] = getelementptr inbounds [[TMP0]], ptr undef, i64 0, i32 1, i32 0 25; CHECK-NEXT: [[I3:%.*]] = getelementptr inbounds [[TMP0]], ptr undef, i64 0, i32 1, i32 1 26; CHECK-NEXT: [[I4:%.*]] = getelementptr inbounds [[TMP0]], ptr undef, i64 0, i32 1, i32 0 27; CHECK-NEXT: br label [[BB6:%.*]] 28; CHECK: bb6: 29; CHECK-NEXT: [[I7:%.*]] = phi double [ 2.800000e+01, [[BB:%.*]] ], [ [[I10:%.*]], [[BB17:%.*]] ], [ [[I10]], [[BB16:%.*]] ], [ [[I10]], [[BB16]] ] 30; CHECK-NEXT: [[I8:%.*]] = phi double [ 1.800000e+01, [[BB]] ], [ [[TMP1:%.*]], [[BB17]] ], [ [[TMP1]], [[BB16]] ], [ [[TMP1]], [[BB16]] ] 31; CHECK-NEXT: store double [[I8]], ptr [[I]], align 8 32; CHECK-NEXT: store double [[I7]], ptr [[I1]], align 8 33; CHECK-NEXT: [[I10]] = load double, ptr [[I3]], align 8 34; CHECK-NEXT: [[TMP0]] = load <2 x double>, ptr [[I2]], align 8 35; CHECK-NEXT: br i1 %arg, label [[BB11:%.*]], label [[BB12:%.*]] 36; CHECK: bb11: 37; CHECK-NEXT: ret void 38; CHECK: bb12: 39; CHECK-NEXT: store <2 x double> [[TMP0]], ptr [[I4]], align 8 40; CHECK-NEXT: br i1 %arg, label [[BB13:%.*]], label [[BB14:%.*]] 41; CHECK: bb13: 42; CHECK-NEXT: br label [[BB14]] 43; CHECK: bb14: 44; CHECK-NEXT: br i1 %arg, label [[BB15:%.*]], label [[BB16]] 45; CHECK: bb15: 46; CHECK-NEXT: unreachable 47; CHECK: bb16: 48; CHECK-NEXT: [[TMP1]] = extractelement <2 x double> [[TMP0]], i32 0 49; CHECK-NEXT: switch i32 undef, label [[BB17]] [ 50; CHECK-NEXT: i32 32, label [[BB6]] 51; CHECK-NEXT: i32 103, label [[BB6]] 52; CHECK-NEXT: ] 53; CHECK: bb17: 54; CHECK-NEXT: br i1 %arg, label [[BB6]], label [[BB18:%.*]] 55; CHECK: bb18: 56; CHECK-NEXT: unreachable 57; 58bb: 59 %i = getelementptr inbounds %0, ptr undef, i64 0, i32 1, i32 0 60 %i1 = getelementptr inbounds %0, ptr undef, i64 0, i32 1, i32 1 61 %i2 = getelementptr inbounds %0, ptr undef, i64 0, i32 1, i32 0 62 %i3 = getelementptr inbounds %0, ptr undef, i64 0, i32 1, i32 1 63 %i4 = getelementptr inbounds %0, ptr undef, i64 0, i32 1, i32 0 64 %i5 = getelementptr inbounds %0, ptr undef, i64 0, i32 1, i32 1 65 br label %bb6 66 67bb6: ; preds = %bb17, %bb16, %bb16, %bb 68 %i7 = phi double [ 2.800000e+01, %bb ], [ %i10, %bb17 ], [ %i10, %bb16 ], [ %i10, %bb16 ] 69 %i8 = phi double [ 1.800000e+01, %bb ], [ %i9, %bb17 ], [ %i9, %bb16 ], [ %i9, %bb16 ] 70 store double %i8, ptr %i, align 8 71 store double %i7, ptr %i1, align 8 72 %i9 = load double, ptr %i2, align 8 73 %i10 = load double, ptr %i3, align 8 74 br i1 %arg, label %bb11, label %bb12 75 76bb11: ; preds = %bb6 77 ret void 78 79bb12: ; preds = %bb6 80 store double %i9, ptr %i4, align 8 81 store double %i10, ptr %i5, align 8 82 br i1 %arg, label %bb13, label %bb14 83 84bb13: ; preds = %bb12 85 br label %bb14 86 87bb14: ; preds = %bb13, %bb12 88 br i1 %arg, label %bb15, label %bb16 89 90bb15: ; preds = %bb14 91 unreachable 92 93bb16: ; preds = %bb14 94 switch i32 undef, label %bb17 [ 95 i32 32, label %bb6 96 i32 103, label %bb6 97 ] 98 99bb17: ; preds = %bb16 100 br i1 %arg, label %bb6, label %bb18 101 102bb18: ; preds = %bb17 103 unreachable 104} 105