| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -S -lower-widenable-condition < %s | FileCheck %s |
| ; RUN: opt -S -passes=lower-widenable-condition < %s | FileCheck %s |
| |
| ; Basic test case: make sure that all widenable conditions turn into i1 true. |
| define void @f_0(i1 %cond_0, i1 %cond_1) { |
| ; CHECK-LABEL: @f_0( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[COND_0:%.*]], true |
| ; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED:%.*]], label [[DEOPT:%.*]] |
| ; CHECK: deopt: |
| ; CHECK-NEXT: unreachable |
| ; CHECK: guarded: |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND4:%.*]] = and i1 [[COND_1:%.*]], true |
| ; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND4]], label [[GUARDED1:%.*]], label [[DEOPT2:%.*]] |
| ; CHECK: deopt2: |
| ; CHECK-NEXT: unreachable |
| ; CHECK: guarded1: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %cond_0, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt |
| |
| deopt: ; preds = %entry |
| unreachable |
| |
| guarded: ; preds = %entry |
| %widenable_cond3 = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond4 = and i1 %cond_1, %widenable_cond3 |
| br i1 %exiplicit_guard_cond4, label %guarded1, label %deopt2 |
| |
| deopt2: ; preds = %guarded |
| unreachable |
| |
| guarded1: ; preds = %guarded |
| ret void |
| } |
| |
| ; Function Attrs: inaccessiblememonly nounwind |
| declare i1 @llvm.experimental.widenable.condition() #0 |
| |
| attributes #0 = { inaccessiblememonly nounwind } |
