blob: 1f0debf7fe8eafce046f43dffbc806eb1489dc67 [file] [log] [blame]
/*
* Copyright 2012, The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef BCC_ABC_EXPAND_VAARG_H
#define BCC_ABC_EXPAND_VAARG_H
#include "bcc/AndroidBitcode/ABCExpandVAArgPass.h"
#include <llvm/ADT/STLExtras.h>
#include <llvm/Instructions.h>
#include <llvm/Support/InstIterator.h>
namespace bcc {
char ABCExpandVAArgPass::ID = 0;
bool ABCExpandVAArgPass::runOnFunction(llvm::Function &pFunc) {
bool changed = false;
mContext = &pFunc.getContext();
// process va_arg inst
for (llvm::inst_iterator inst = llvm::inst_begin(pFunc),
inst_end = llvm::inst_end(pFunc), next_inst = llvm::next(inst);
inst != inst_end; inst = next_inst++) {
if (inst->getOpcode() == llvm::Instruction::VAArg) {
llvm::Value *v = expandVAArg(&*inst);
inst->replaceAllUsesWith(v);
inst->eraseFromParent();
changed = true;
continue;
}
}
return changed;
}
} // end bcc namespace
#endif // BCC_ABC_EXPAND_VAARG_H