#include "llvm/BasicBlock.h"
#include "llvm/Constant.h"
#include "llvm/Instructions.h"
#include "llvm/Pass.h"
#include "llvm/Type.h"
#include "llvm/Support/InstVisitor.h"
using namespace llvm;
namespace {
class CrashOnCalls : public BasicBlockPass {
public:
static char ID; CrashOnCalls() : BasicBlockPass(ID) {}
private:
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesAll();
}
bool runOnBasicBlock(BasicBlock &BB) {
for (BasicBlock::iterator I = BB.begin(), E = BB.end(); I != E; ++I)
if (isa<CallInst>(*I))
abort();
return false;
}
};
}
char CrashOnCalls::ID = 0;
static RegisterPass<CrashOnCalls>
X("bugpoint-crashcalls",
"BugPoint Test Pass - Intentionally crash on CallInsts");
namespace {
class DeleteCalls : public BasicBlockPass {
public:
static char ID; DeleteCalls() : BasicBlockPass(ID) {}
private:
bool runOnBasicBlock(BasicBlock &BB) {
for (BasicBlock::iterator I = BB.begin(), E = BB.end(); I != E; ++I)
if (CallInst *CI = dyn_cast<CallInst>(I)) {
if (!CI->use_empty())
CI->replaceAllUsesWith(Constant::getNullValue(CI->getType()));
CI->getParent()->getInstList().erase(CI);
break;
}
return false;
}
};
}
char DeleteCalls::ID = 0;
static RegisterPass<DeleteCalls>
Y("bugpoint-deletecalls",
"BugPoint Test Pass - Intentionally 'misoptimize' CallInsts");