| Sanjoy Das | b771eb6 | 2015-12-08 00:13:17 +0000 | [diff] [blame] | 1 | ; RUN: opt -indvars -loop-idiom -loop-deletion -S < %s | FileCheck %s |
| 2 | |
| 3 | target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| 4 | target triple = "x86_64-unknown-linux-gnu" |
| 5 | |
| 6 | ; Checking for a crash |
| 7 | |
| 8 | define void @f(i32* %a) { |
| 9 | ; CHECK-LABEL: @f( |
| 10 | entry: |
| 11 | br label %for.cond |
| 12 | |
| 13 | for.cond: ; preds = %for.inc, %for.cond, %entry |
| 14 | %iv = phi i32 [ 0, %entry ], [ %add, %for.inc ], [ %iv, %for.cond ] |
| 15 | %add = add nsw i32 %iv, 1 |
| 16 | %idxprom = sext i32 %add to i64 |
| 17 | %arrayidx = getelementptr inbounds i32, i32* %a, i64 %idxprom |
| 18 | br i1 undef, label %for.cond, label %for.inc |
| 19 | |
| 20 | for.inc: ; preds = %for.cond |
| 21 | br i1 undef, label %for.cond, label %for.end |
| 22 | |
| 23 | for.end: ; preds = %for.inc |
| 24 | ret void |
| 25 | } |