| Nikolai Bozhenov | 4d5e34b | 2018-01-04 10:02:50 +0000 | [diff] [blame] | 1 | ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| 2 | ; RUN: opt -instcombine < %s -S | FileCheck %s |
| 3 | |
| 4 | define void @test() #0 { |
| 5 | ; CHECK-LABEL: @test( |
| 6 | ; CHECK-NEXT: entry: |
| 7 | ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| 8 | ; CHECK: for.body: |
| 9 | ; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ] |
| 10 | ; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 |
| Tim Northover | 12c1f76 | 2018-09-10 14:26:44 +0000 | [diff] [blame] | 11 | ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ult i64 [[INDVARS_IV_NEXT]], 40 |
| Nikolai Bozhenov | 4d5e34b | 2018-01-04 10:02:50 +0000 | [diff] [blame] | 12 | ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]] |
| 13 | ; CHECK: for.end: |
| 14 | ; CHECK-NEXT: ret void |
| 15 | ; |
| 16 | entry: |
| 17 | br label %for.body |
| 18 | |
| 19 | for.body: ; preds = %for.body, %entry |
| 20 | %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| 21 | %indvars.iv.next = add nsw i64 %indvars.iv, 1 |
| 22 | %exitcond = icmp slt i64 %indvars.iv.next, 40 |
| 23 | br i1 %exitcond, label %for.end, label %for.body |
| 24 | |
| 25 | for.end: ; preds = %for.body |
| 26 | ret void |
| 27 | } |