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1; RUN: opt %loadNPMPolly '-passes=polly-custom<optree;simplify>' -polly-print-simplify -disable-output < %s | FileCheck %s -match-full-lines2 3; llvm.org/PR470984; Use-after-free by reference to Stmt remaining in InstStmtMap after removing it has been removed by Scop::simplifyScop.5; Removal happened in -polly-simplify, Reference was using in -polly-optree.6; Check that Simplify removes the definition of %0 as well of its use.7 8target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"9target triple = "x86_64-pc-windows-msvc19.26.28806"10 11@"?var_27@@3JA" = external dso_local local_unnamed_addr global i32, align 412@"?var_28@@3HA" = external dso_local local_unnamed_addr global i32, align 413 14; Function Attrs: nofree norecurse nounwind uwtable15define dso_local void @"?test@@YAXHEQEAY3M@1BI@BJ@H@Z"(i32 %a, i8 %b, ptr nocapture readonly %c) local_unnamed_addr {16entry:17 br label %entry.split18 19entry.split: ; preds = %entry20 %sext = shl i32 %a, 1621 %conv4 = ashr exact i32 %sext, 1622 %sub = add nsw i32 %conv4, -2594123 %cmp535 = icmp sgt i32 %sext, 170006937624 br i1 %cmp535, label %for.cond8.preheader.lr.ph, label %for.cond.cleanup.critedge25 26for.cond8.preheader.lr.ph: ; preds = %entry.split27 %conv10 = zext i8 %b to i6428 %sub11 = add nsw i64 %conv10, -12929 %cmp1232.not = icmp eq i64 %sub11, 030 br i1 %cmp1232.not, label %for.cond8.preheader, label %for.cond8.preheader.us31 32for.cond8.preheader.us: ; preds = %for.cond8.preheader.lr.ph, %for.cond8.for.cond.cleanup13_crit_edge.us33 %e.036.us = phi i16 [ %add.us, %for.cond8.for.cond.cleanup13_crit_edge.us ], [ 0, %for.cond8.preheader.lr.ph ]34 %idxprom.us = sext i16 %e.036.us to i6435 br label %for.body14.us36 37for.body14.us: ; preds = %for.cond8.preheader.us, %for.body14.us38 %indvars.iv = phi i64 [ 0, %for.cond8.preheader.us ], [ %indvars.iv.next, %for.body14.us ]39 %arrayidx19.us = getelementptr inbounds [12 x [2 x [24 x [25 x i32]]]], ptr %c, i64 6, i64 2, i64 1, i64 %idxprom.us, i64 %indvars.iv40 %0 = load i32, ptr %arrayidx19.us, align 4, !tbaa !341 store i32 0, ptr @"?var_28@@3HA", align 4, !tbaa !342 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 143 %exitcond.not = icmp eq i64 %indvars.iv.next, %sub1144 br i1 %exitcond.not, label %for.cond8.for.cond.cleanup13_crit_edge.us, label %for.body14.us45 46for.cond8.for.cond.cleanup13_crit_edge.us: ; preds = %for.body14.us47 %add.us = add i16 %e.036.us, 448 %conv2.us = sext i16 %add.us to i3249 %cmp5.us = icmp sgt i32 %sub, %conv2.us50 br i1 %cmp5.us, label %for.cond8.preheader.us, label %for.cond.cleanup.critedge.loopexit3851 52for.cond.cleanup.critedge.loopexit38: ; preds = %for.cond8.for.cond.cleanup13_crit_edge.us53 store i32 %0, ptr @"?var_27@@3JA", align 4, !tbaa !754 br label %for.cond.cleanup.critedge55 56for.cond.cleanup.critedge: ; preds = %for.cond8.preheader, %for.cond.cleanup.critedge.loopexit38, %entry.split57 ret void58 59for.cond8.preheader: ; preds = %for.cond8.preheader.lr.ph, %for.cond8.preheader60 %e.036 = phi i16 [ %add, %for.cond8.preheader ], [ 0, %for.cond8.preheader.lr.ph ]61 %add = add i16 %e.036, 462 %conv2 = sext i16 %add to i3263 %cmp5 = icmp sgt i32 %sub, %conv264 br i1 %cmp5, label %for.cond8.preheader, label %for.cond.cleanup.critedge65}66 67!3 = !{!4, !4, i64 0}68!4 = !{!"int", !5, i64 0}69!5 = !{!"omnipotent char", !6, i64 0}70!6 = !{!"Simple C++ TBAA"}71!7 = !{!8, !8, i64 0}72!8 = !{!"long", !5, i64 0}73 74 75; CHECK: Statistics {76; CHECK: Empty domains removed: 277; CHECK: }78 79; CHECK: After accesses {80; CHECK-NOT: Stmt_for_body14_us_a81; CHECK-NOT: Stmt_for_body14_us82; CHECK: }83