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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -passes=slp-vectorizer -mtriple=x86_64-apple-macosx10.9.0 -mcpu=corei7-avx -S < %s | FileCheck %s3target 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 than9; incoming block lookup.10; This can give wrong results when the ordering of incoming11; 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 023; CHECK-NEXT: [[I1:%.*]] = getelementptr inbounds [[TMP0]], ptr undef, i64 0, i32 1, i32 124; CHECK-NEXT: [[I2:%.*]] = getelementptr inbounds [[TMP0]], ptr undef, i64 0, i32 1, i32 025; CHECK-NEXT: [[I3:%.*]] = getelementptr inbounds [[TMP0]], ptr undef, i64 0, i32 1, i32 126; CHECK-NEXT: [[I4:%.*]] = getelementptr inbounds [[TMP0]], ptr undef, i64 0, i32 1, i32 027; 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 832; CHECK-NEXT: store double [[I7]], ptr [[I1]], align 833; CHECK-NEXT: [[I10]] = load double, ptr [[I3]], align 834; CHECK-NEXT: [[TMP0]] = load <2 x double>, ptr [[I2]], align 835; CHECK-NEXT: br i1 %arg, label [[BB11:%.*]], label [[BB12:%.*]]36; CHECK: bb11:37; CHECK-NEXT: ret void38; CHECK: bb12:39; CHECK-NEXT: store <2 x double> [[TMP0]], ptr [[I4]], align 840; 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: unreachable47; CHECK: bb16:48; CHECK-NEXT: [[TMP1]] = extractelement <2 x double> [[TMP0]], i32 049; 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: unreachable57;58bb:59 %i = getelementptr inbounds %0, ptr undef, i64 0, i32 1, i32 060 %i1 = getelementptr inbounds %0, ptr undef, i64 0, i32 1, i32 161 %i2 = getelementptr inbounds %0, ptr undef, i64 0, i32 1, i32 062 %i3 = getelementptr inbounds %0, ptr undef, i64 0, i32 1, i32 163 %i4 = getelementptr inbounds %0, ptr undef, i64 0, i32 1, i32 064 %i5 = getelementptr inbounds %0, ptr undef, i64 0, i32 1, i32 165 br label %bb666 67bb6: ; preds = %bb17, %bb16, %bb16, %bb68 %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 871 store double %i7, ptr %i1, align 872 %i9 = load double, ptr %i2, align 873 %i10 = load double, ptr %i3, align 874 br i1 %arg, label %bb11, label %bb1275 76bb11: ; preds = %bb677 ret void78 79bb12: ; preds = %bb680 store double %i9, ptr %i4, align 881 store double %i10, ptr %i5, align 882 br i1 %arg, label %bb13, label %bb1483 84bb13: ; preds = %bb1285 br label %bb1486 87bb14: ; preds = %bb13, %bb1288 br i1 %arg, label %bb15, label %bb1689 90bb15: ; preds = %bb1491 unreachable92 93bb16: ; preds = %bb1494 switch i32 undef, label %bb17 [95 i32 32, label %bb696 i32 103, label %bb697 ]98 99bb17: ; preds = %bb16100 br i1 %arg, label %bb6, label %bb18101 102bb18: ; preds = %bb17103 unreachable104}105