| ; RUN: opt < %s -S -passes=loop-unroll -unroll-runtime | FileCheck %s | |
| 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" | |
| target triple = "powerpc64le-unknown-linux" | |
| define void @test1(i1 %arg) nounwind { | |
| ; Ensure that we don't crash when the trip count == -1. | |
| ; CHECK-LABEL: @test1( | |
| entry: | |
| br label %for.cond2.preheader | |
| for.cond2.preheader: ; preds = %for.end, %entry | |
| br i1 false, label %middle.block, label %vector.ph | |
| vector.ph: ; preds = %for.cond2.preheader | |
| br label %vector.body | |
| vector.body: ; preds = %vector.body, %vector.ph | |
| br i1 %arg, label %middle.block.loopexit, label %vector.body | |
| middle.block.loopexit: ; preds = %vector.body | |
| br label %middle.block | |
| middle.block: ; preds = %middle.block.loopexit, %for.cond2.preheader | |
| br i1 true, label %for.end, label %scalar.preheader | |
| scalar.preheader: ; preds = %middle.block | |
| br label %for.body4 | |
| for.body4: ; preds = %for.body4, %scalar.preheader | |
| %indvars.iv = phi i64 [ 16000, %scalar.preheader ], [ %indvars.iv.next, %for.body4 ] | |
| %indvars.iv.next = add i64 %indvars.iv, 1 | |
| %lftr.wideiv = trunc i64 %indvars.iv.next to i32 | |
| %exitcond = icmp ne i32 %lftr.wideiv, 16000 | |
| br i1 %exitcond, label %for.body4, label %for.end.loopexit | |
| for.end.loopexit: ; preds = %for.body4 | |
| br label %for.end | |
| for.end: ; preds = %for.end.loopexit, %middle.block | |
| br i1 %arg, label %for.cond2.preheader, label %for.end15 | |
| for.end15: ; preds = %for.end | |
| ret void | |
| } |