| Chandler Carruth | 1353f9a | 2017-04-27 18:45:20 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -simple-loop-unswitch -instcombine -disable-output |
| Alina Sbirlea | a2eebb8 | 2018-12-04 14:23:37 +0000 | [diff] [blame^] | 2 | ; RUN: opt < %s -simple-loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa -instcombine -disable-output |
| Chandler Carruth | 1353f9a | 2017-04-27 18:45:20 +0000 | [diff] [blame] | 3 | |
| 4 | @str3 = external constant [3 x i8] ; <[3 x i8]*> [#uses=1] |
| 5 | |
| 6 | define i32 @stringSearch_Clib(i32 %count) { |
| 7 | entry: |
| 8 | %ttmp25 = icmp sgt i32 %count, 0 ; <i1> [#uses=1] |
| 9 | br i1 %ttmp25, label %bb36.preheader, label %bb44 |
| 10 | |
| 11 | bb36.preheader: ; preds = %entry |
| 12 | %ttmp33 = icmp slt i32 0, 250 ; <i1> [#uses=1] |
| 13 | br label %bb36.outer |
| 14 | |
| 15 | bb36.outer: ; preds = %bb41, %bb36.preheader |
| 16 | br i1 %ttmp33, label %bb.nph, label %bb41 |
| 17 | |
| 18 | bb.nph: ; preds = %bb36.outer |
| 19 | %ttmp8 = icmp eq i8* null, null ; <i1> [#uses=1] |
| 20 | %ttmp6 = icmp eq i8* null, null ; <i1> [#uses=1] |
| 21 | %tmp31 = call i32 @strcspn( i8* null, i8* getelementptr ([3 x i8], [3 x i8]* @str3, i64 0, i64 0) ) ; <i32> [#uses=1] |
| 22 | br i1 %ttmp8, label %cond_next, label %cond_true |
| 23 | |
| 24 | cond_true: ; preds = %bb.nph |
| 25 | ret i32 0 |
| 26 | |
| 27 | cond_next: ; preds = %bb.nph |
| 28 | br i1 %ttmp6, label %cond_next28, label %cond_true20 |
| 29 | |
| 30 | cond_true20: ; preds = %cond_next |
| 31 | ret i32 0 |
| 32 | |
| 33 | cond_next28: ; preds = %cond_next |
| 34 | %tmp33 = add i32 %tmp31, 0 ; <i32> [#uses=1] |
| 35 | br label %bb41 |
| 36 | |
| 37 | bb41: ; preds = %cond_next28, %bb36.outer |
| 38 | %c.2.lcssa = phi i32 [ 0, %bb36.outer ], [ %tmp33, %cond_next28 ] ; <i32> [#uses=1] |
| 39 | br i1 false, label %bb36.outer, label %bb44 |
| 40 | |
| 41 | bb44: ; preds = %bb41, %entry |
| 42 | %c.01.1 = phi i32 [ 0, %entry ], [ %c.2.lcssa, %bb41 ] ; <i32> [#uses=1] |
| 43 | ret i32 %c.01.1 |
| 44 | } |
| 45 | |
| 46 | declare i32 @strcspn(i8*, i8*) |