| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -S -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -switch-range-to-icmp < %s | FileCheck %s |
| |
| define void @widget(i32 %arg) { |
| ; CHECK-LABEL: @widget( |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[SWITCH:%.*]] = icmp ult i32 [[ARG:%.*]], 2 |
| ; CHECK-NEXT: br i1 [[SWITCH]], label [[COMMON_RET:%.*]], label [[INFLOOP:%.*]] |
| ; CHECK: common.ret: |
| ; CHECK-NEXT: ret void |
| ; CHECK: infloop: |
| ; CHECK-NEXT: br label [[INFLOOP]] |
| ; |
| bb: |
| %tmp = icmp eq i32 %arg, 0 |
| br i1 %tmp, label %bb2, label %bb1 |
| |
| bb1: ; preds = %bb1 |
| %tmp4 = icmp eq i32 %arg, 1 |
| br i1 %tmp4, label %bb6, label %bb5 |
| |
| bb5: ; preds = %bb5, %bb5 |
| switch i32 %arg, label %bb5 [ |
| i32 0, label %bb9 |
| ] |
| |
| bb2: |
| ret void |
| |
| bb6: ; preds = %bb1 |
| ret void |
| |
| bb9: ; preds = %bb5 |
| ret void |
| } |