| ; RUN: opt -indvars -loop-idiom -loop-deletion -S < %s | FileCheck %s | |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" | |
| target triple = "x86_64-unknown-linux-gnu" | |
| ; Checking for a crash | |
| define void @f(i32* %a) { | |
| ; CHECK-LABEL: @f( | |
| entry: | |
| br label %for.cond | |
| for.cond: ; preds = %for.inc, %for.cond, %entry | |
| %iv = phi i32 [ 0, %entry ], [ %add, %for.inc ], [ %iv, %for.cond ] | |
| %add = add nsw i32 %iv, 1 | |
| %idxprom = sext i32 %add to i64 | |
| %arrayidx = getelementptr inbounds i32, i32* %a, i64 %idxprom | |
| br i1 undef, label %for.cond, label %for.inc | |
| for.inc: ; preds = %for.cond | |
| br i1 undef, label %for.cond, label %for.end | |
| for.end: ; preds = %for.inc | |
| ret void | |
| } |