| Sanjoy Das | 366acc1 | 2015-08-06 20:43:41 +0000 | [diff] [blame] | 1 | ; RUN: opt -S -indvars < %s | FileCheck %s |
| 2 | |
| 3 | target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| 4 | target triple = "x86_64-apple-macosx10.10.0" |
| 5 | |
| 6 | @a = common global i32 0, align 4 |
| 7 | |
| 8 | ; Function Attrs: nounwind ssp uwtable |
| 9 | define void @fn1() { |
| 10 | ; CHECK-LABEL: @fn1( |
| 11 | bb: |
| 12 | br label %bb4.preheader |
| 13 | |
| 14 | bb4.preheader: ; preds = %bb, %bb16 |
| 15 | ; CHECK-LABEL: bb4.preheader: |
| 16 | %b.03 = phi i8 [ 0, %bb ], [ %tmp17, %bb16 ] |
| 17 | ; CHECK: %tmp9 = icmp ugt i8 %b.03, 1 |
| 18 | ; CHECK-NOT: %tmp9 = icmp ugt i8 0, 1 |
| 19 | |
| 20 | %tmp9 = icmp ugt i8 %b.03, 1 |
| 21 | br i1 %tmp9, label %bb4.preheader.bb18.loopexit.split_crit_edge, label %bb4.preheader.bb4.preheader.split_crit_edge |
| 22 | |
| 23 | bb4.preheader.bb4.preheader.split_crit_edge: ; preds = %bb4.preheader |
| 24 | br label %bb4.preheader.split |
| 25 | |
| 26 | bb4.preheader.bb18.loopexit.split_crit_edge: ; preds = %bb4.preheader |
| 27 | store i32 0, i32* @a, align 4 |
| 28 | br label %bb18.loopexit.split |
| 29 | |
| 30 | bb4.preheader.split: ; preds = %bb4.preheader.bb4.preheader.split_crit_edge |
| 31 | br label %bb7 |
| 32 | |
| 33 | bb4: ; preds = %bb7 |
| 34 | %tmp6 = icmp slt i32 %storemerge2, 0 |
| 35 | br i1 %tmp6, label %bb7, label %bb16 |
| 36 | |
| 37 | bb7: ; preds = %bb4.preheader.split, %bb4 |
| 38 | %storemerge2 = phi i32 [ 0, %bb4.preheader.split ], [ %tmp14, %bb4 ] |
| 39 | %tmp14 = add nsw i32 %storemerge2, 1 |
| 40 | br i1 false, label %bb18.loopexit, label %bb4 |
| 41 | |
| 42 | bb16: ; preds = %bb4 |
| 43 | %tmp14.lcssa5 = phi i32 [ %tmp14, %bb4 ] |
| 44 | %tmp17 = add i8 %b.03, -1 |
| 45 | %tmp2 = icmp eq i8 %tmp17, -2 |
| 46 | br i1 %tmp2, label %bb18.loopexit1, label %bb4.preheader |
| 47 | |
| 48 | bb18.loopexit: ; preds = %bb7 |
| 49 | br label %bb18.loopexit.split |
| 50 | |
| 51 | bb18.loopexit.split: ; preds = %bb4.preheader.bb18.loopexit.split_crit_edge, %bb18.loopexit |
| 52 | br label %bb18 |
| 53 | |
| 54 | bb18.loopexit1: ; preds = %bb16 |
| 55 | %tmp14.lcssa5.lcssa = phi i32 [ %tmp14.lcssa5, %bb16 ] |
| 56 | store i32 %tmp14.lcssa5.lcssa, i32* @a, align 4 |
| 57 | br label %bb18 |
| 58 | |
| 59 | bb18: ; preds = %bb18.loopexit1, %bb18.loopexit.split |
| 60 | ret void |
| 61 | } |
| 62 | |
| 63 | declare void @abort() |