| Dan Gohman | 3c7d308 | 2009-09-11 18:01:28 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -indvars |
| Edwin Török | 9654751 | 2009-05-24 14:23:16 +0000 | [diff] [blame] | 2 | ; PR4258 |
| 3 | target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32" |
| 4 | target triple = "i386-linux-gnu" |
| 5 | |
| 6 | define void @0(i32*, i32*, i32, i32) nounwind { |
| 7 | br i1 false, label %bb.nph1.preheader, label %.outer._crit_edge |
| 8 | |
| 9 | bb.nph1.preheader: ; preds = %4 |
| 10 | %smax = select i1 false, i32 -1, i32 0 ; <i32> [#uses=1] |
| 11 | %tmp12 = sub i32 0, %smax ; <i32> [#uses=1] |
| 12 | br label %bb.nph1 |
| 13 | |
| 14 | bb.nph1: ; preds = %.outer, %bb.nph1.preheader |
| Dan Gohman | a78918b | 2010-02-19 18:12:07 +0000 | [diff] [blame] | 15 | br i1 undef, label %bb.nph3.preheader, label %.outer |
| Edwin Török | 9654751 | 2009-05-24 14:23:16 +0000 | [diff] [blame] | 16 | |
| 17 | bb.nph3.preheader: ; preds = %bb.nph1 |
| 18 | br label %bb.nph3 |
| 19 | |
| 20 | bb.nph3: ; preds = %bb.nph3, %bb.nph3.preheader |
| 21 | %indvar7 = phi i32 [ %indvar.next8, %bb.nph3 ], [ 0, %bb.nph3.preheader ] ; <i32> [#uses=3] |
| 22 | %tmp9 = mul i32 %indvar7, -1 ; <i32> [#uses=1] |
| 23 | %tmp13 = add i32 %tmp9, %tmp12 ; <i32> [#uses=1] |
| 24 | %tmp14 = add i32 %tmp13, -2 ; <i32> [#uses=1] |
| 25 | %5 = icmp sgt i32 %tmp14, 0 ; <i1> [#uses=1] |
| 26 | %indvar.next8 = add i32 %indvar7, 1 ; <i32> [#uses=1] |
| 27 | br i1 %5, label %bb.nph3, label %.outer.loopexit |
| 28 | |
| 29 | .outer.loopexit: ; preds = %bb.nph3 |
| 30 | %indvar7.lcssa = phi i32 [ %indvar7, %bb.nph3 ] ; <i32> [#uses=0] |
| 31 | br label %.outer |
| 32 | |
| 33 | .outer: ; preds = %.outer.loopexit, %bb.nph1 |
| Dan Gohman | a78918b | 2010-02-19 18:12:07 +0000 | [diff] [blame] | 34 | br i1 undef, label %bb.nph1, label %.outer._crit_edge.loopexit |
| Edwin Török | 9654751 | 2009-05-24 14:23:16 +0000 | [diff] [blame] | 35 | |
| 36 | .outer._crit_edge.loopexit: ; preds = %.outer |
| 37 | br label %.outer._crit_edge |
| 38 | |
| 39 | .outer._crit_edge: ; preds = %.outer._crit_edge.loopexit, %4 |
| 40 | ret void |
| 41 | } |