| Eric Christopher | cee313d | 2019-04-17 04:52:47 +0000 | [diff] [blame^] | 1 | ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| 2 | ; RUN: opt -S -o - -structurizecfg < %s | FileCheck %s |
| 3 | |
| 4 | define void @test1() { |
| 5 | ; CHECK-LABEL: @test1( |
| 6 | ; CHECK-NEXT: entry: |
| 7 | ; CHECK-NEXT: br label [[LOOP:%.*]] |
| 8 | ; CHECK: Flow: |
| 9 | ; CHECK-NEXT: br label [[FLOW1:%.*]] |
| 10 | ; CHECK: loop: |
| 11 | ; CHECK-NEXT: [[CTR:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[CTR_NEXT:%.*]], [[FLOW1]] ] |
| 12 | ; CHECK-NEXT: [[CTR_NEXT]] = add i32 [[CTR]], 1 |
| 13 | ; CHECK-NEXT: br i1 undef, label [[LOOP_A:%.*]], label [[FLOW1]] |
| 14 | ; CHECK: loop.a: |
| 15 | ; CHECK-NEXT: br i1 undef, label [[LOOP_B:%.*]], label [[FLOW:%.*]] |
| 16 | ; CHECK: loop.b: |
| 17 | ; CHECK-NEXT: br label [[FLOW]] |
| 18 | ; CHECK: Flow1: |
| 19 | ; CHECK-NEXT: [[TMP0:%.*]] = phi i1 [ false, [[FLOW]] ], [ true, [[LOOP]] ] |
| 20 | ; CHECK-NEXT: br i1 [[TMP0]], label [[EXIT:%.*]], label [[LOOP]] |
| 21 | ; CHECK: exit: |
| 22 | ; CHECK-NEXT: ret void |
| 23 | ; |
| 24 | entry: |
| 25 | br label %loop |
| 26 | |
| 27 | loop: |
| 28 | %ctr = phi i32 [ 0, %entry ], [ %ctr.next, %loop.a ], [ %ctr.next, %loop.b ] |
| 29 | %ctr.next = add i32 %ctr, 1 |
| 30 | br i1 undef, label %exit, label %loop.a |
| 31 | |
| 32 | loop.a: |
| 33 | br i1 undef, label %loop, label %loop.b |
| 34 | |
| 35 | loop.b: |
| 36 | br label %loop |
| 37 | |
| 38 | exit: |
| 39 | ret void |
| 40 | } |