29 lines · cpp
1//===- DomConditionCache.cpp ----------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "llvm/Analysis/DomConditionCache.h"10#include "llvm/Analysis/ValueTracking.h"11using namespace llvm;12 13static void findAffectedValues(Value *Cond,14 SmallVectorImpl<Value *> &Affected) {15 auto InsertAffected = [&Affected](Value *V) { Affected.push_back(V); };16 findValuesAffectedByCondition(Cond, /*IsAssume=*/false, InsertAffected);17}18 19void DomConditionCache::registerBranch(BranchInst *BI) {20 assert(BI->isConditional() && "Must be conditional branch");21 SmallVector<Value *, 16> Affected;22 findAffectedValues(BI->getCondition(), Affected);23 for (Value *V : Affected) {24 auto &AV = AffectedValues[V];25 if (!is_contained(AV, BI))26 AV.push_back(BI);27 }28}29