| Nadav Rotem | 6eae65c | 2013-01-10 17:34:39 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -loop-vectorize -force-vector-unroll=1 -force-vector-width=4 |
| 2 | |
| 3 | target datalayout = |
| 4 | "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-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" |
| 5 | target triple = "x86_64-apple-macosx10.7.0" |
| 6 | |
| 7 | define void @test() { |
| 8 | entry: |
| 9 | br i1 undef, label %while.end, label %while.body.lr.ph |
| 10 | |
| 11 | while.body.lr.ph: |
| 12 | br label %while.body |
| 13 | |
| 14 | while.body: |
| 15 | %it.sroa.0.091 = phi i32* [ undef, %while.body.lr.ph ], [ %incdec.ptr.i, %while.body ] |
| 16 | %incdec.ptr.i = getelementptr inbounds i32* %it.sroa.0.091, i64 1 |
| 17 | %inc32 = add i32 undef, 1 ; <------------- Make sure we don't set NSW flags to the undef. |
| 18 | %cmp.i11 = icmp eq i32* %incdec.ptr.i, undef |
| 19 | br i1 %cmp.i11, label %while.end, label %while.body |
| 20 | |
| 21 | while.end: |
| 22 | ret void |
| 23 | } |
| 24 | |
| 25 | |