| Hal Finkel | 30bd934 | 2012-10-24 19:46:44 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -S -loop-unroll -unroll-runtime | FileCheck %s |
| 2 | target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v128:128:128-n32:64" |
| 3 | target triple = "powerpc64-bgq-linux" |
| 4 | |
| 5 | define void @test1() nounwind { |
| 6 | ; Ensure that we don't crash when the trip count == -1. |
| Stephen Lin | c1c7a13 | 2013-07-14 01:42:54 +0000 | [diff] [blame] | 7 | ; CHECK-LABEL: @test1( |
| Hal Finkel | 30bd934 | 2012-10-24 19:46:44 +0000 | [diff] [blame] | 8 | entry: |
| 9 | br label %for.cond2.preheader |
| 10 | |
| 11 | for.cond2.preheader: ; preds = %for.end, %entry |
| 12 | br i1 false, label %middle.block, label %vector.ph |
| 13 | |
| 14 | vector.ph: ; preds = %for.cond2.preheader |
| 15 | br label %vector.body |
| 16 | |
| 17 | vector.body: ; preds = %vector.body, %vector.ph |
| 18 | br i1 undef, label %middle.block.loopexit, label %vector.body |
| 19 | |
| 20 | middle.block.loopexit: ; preds = %vector.body |
| 21 | br label %middle.block |
| 22 | |
| 23 | middle.block: ; preds = %middle.block.loopexit, %for.cond2.preheader |
| 24 | br i1 true, label %for.end, label %scalar.preheader |
| 25 | |
| 26 | scalar.preheader: ; preds = %middle.block |
| 27 | br label %for.body4 |
| 28 | |
| 29 | for.body4: ; preds = %for.body4, %scalar.preheader |
| 30 | %indvars.iv = phi i64 [ 16000, %scalar.preheader ], [ %indvars.iv.next, %for.body4 ] |
| 31 | %indvars.iv.next = add i64 %indvars.iv, 1 |
| 32 | %lftr.wideiv = trunc i64 %indvars.iv.next to i32 |
| 33 | %exitcond = icmp ne i32 %lftr.wideiv, 16000 |
| 34 | br i1 %exitcond, label %for.body4, label %for.end.loopexit |
| 35 | |
| 36 | for.end.loopexit: ; preds = %for.body4 |
| 37 | br label %for.end |
| 38 | |
| 39 | for.end: ; preds = %for.end.loopexit, %middle.block |
| 40 | br i1 undef, label %for.cond2.preheader, label %for.end15 |
| 41 | |
| 42 | for.end15: ; preds = %for.end |
| 43 | ret void |
| 44 | } |