| Jakub Staszak | 990f78d | 2011-08-03 22:34:43 +0000 | [diff] [blame^] | 1 | ; RUN: llc < %s -march=arm | FileCheck %s |
| Evan Cheng | 60c916b | 2007-06-20 18:26:15 +0000 | [diff] [blame] | 2 | |
| Jakub Staszak | 990f78d | 2011-08-03 22:34:43 +0000 | [diff] [blame^] | 3 | ; Do not if-convert when branches go to the different loops. |
| 4 | ; CHECK: _t: |
| 5 | ; CHECK-NOT: subgt |
| 6 | ; CHECK-NOT: suble |
| 7 | ; Don't use |
| Evan Cheng | 60c916b | 2007-06-20 18:26:15 +0000 | [diff] [blame] | 8 | define i32 @t(i32 %a, i32 %b) { |
| 9 | entry: |
| 10 | %tmp1434 = icmp eq i32 %a, %b ; <i1> [#uses=1] |
| 11 | br i1 %tmp1434, label %bb17, label %bb.outer |
| 12 | |
| 13 | bb.outer: ; preds = %cond_false, %entry |
| 14 | %b_addr.021.0.ph = phi i32 [ %b, %entry ], [ %tmp10, %cond_false ] ; <i32> [#uses=5] |
| 15 | %a_addr.026.0.ph = phi i32 [ %a, %entry ], [ %a_addr.026.0, %cond_false ] ; <i32> [#uses=1] |
| 16 | br label %bb |
| 17 | |
| 18 | bb: ; preds = %cond_true, %bb.outer |
| 19 | %indvar = phi i32 [ 0, %bb.outer ], [ %indvar.next, %cond_true ] ; <i32> [#uses=2] |
| 20 | %tmp. = sub i32 0, %b_addr.021.0.ph ; <i32> [#uses=1] |
| 21 | %tmp.40 = mul i32 %indvar, %tmp. ; <i32> [#uses=1] |
| 22 | %a_addr.026.0 = add i32 %tmp.40, %a_addr.026.0.ph ; <i32> [#uses=6] |
| 23 | %tmp3 = icmp sgt i32 %a_addr.026.0, %b_addr.021.0.ph ; <i1> [#uses=1] |
| 24 | br i1 %tmp3, label %cond_true, label %cond_false |
| 25 | |
| 26 | cond_true: ; preds = %bb |
| 27 | %tmp7 = sub i32 %a_addr.026.0, %b_addr.021.0.ph ; <i32> [#uses=2] |
| 28 | %tmp1437 = icmp eq i32 %tmp7, %b_addr.021.0.ph ; <i1> [#uses=1] |
| 29 | %indvar.next = add i32 %indvar, 1 ; <i32> [#uses=1] |
| 30 | br i1 %tmp1437, label %bb17, label %bb |
| 31 | |
| 32 | cond_false: ; preds = %bb |
| 33 | %tmp10 = sub i32 %b_addr.021.0.ph, %a_addr.026.0 ; <i32> [#uses=2] |
| 34 | %tmp14 = icmp eq i32 %a_addr.026.0, %tmp10 ; <i1> [#uses=1] |
| 35 | br i1 %tmp14, label %bb17, label %bb.outer |
| 36 | |
| 37 | bb17: ; preds = %cond_false, %cond_true, %entry |
| 38 | %a_addr.026.1 = phi i32 [ %a, %entry ], [ %tmp7, %cond_true ], [ %a_addr.026.0, %cond_false ] ; <i32> [#uses=1] |
| 39 | ret i32 %a_addr.026.1 |
| 40 | } |