//
//===----------------------------------------------------------------------===//
//
-// This inserts a global constant table with function pointers all along
+// This inserts a global constant table with function pointers all along.
+//
+// NOTE: This pass is used by the reoptimizer only.
//
//===----------------------------------------------------------------------===//
#include "llvm/Module.h"
#include "llvm/Pass.h"
#include "llvm/Support/CFG.h"
-
-namespace llvm {
-
-enum Color{
- WHITE,
- GREY,
- BLACK
-};
+using namespace llvm;
namespace {
- struct EmitFunctionTable : public Pass {
- bool run(Module &M);
+ enum Color{
+ WHITE,
+ GREY,
+ BLACK
};
- RegisterOpt<EmitFunctionTable> X("emitfuncs", "Emit a Function Table");
+ struct EmitFunctionTable : public ModulePass {
+ bool runOnModule(Module &M);
+ };
+
+ RegisterOpt<EmitFunctionTable>
+ X("emitfuncs", "Emit a function table for the reoptimizer");
}
-char doDFS(BasicBlock * node,std::map<BasicBlock *, Color > &color){
+static char doDFS(BasicBlock * node,std::map<BasicBlock *, Color > &color){
color[node] = GREY;
for(succ_iterator vl = succ_begin(node), ve = succ_end(node); vl != ve; ++vl){
return 1;
}
-char hasBackEdge(Function *F){
+static char hasBackEdge(Function *F){
std::map<BasicBlock *, Color > color;
return doDFS(F->begin(), color);
}
// Per Module pass for inserting function table
-bool EmitFunctionTable::run(Module &M){
+bool EmitFunctionTable::runOnModule(Module &M){
std::vector<const Type*> vType;
std::vector<Constant *> vConsts;
//std::cerr<<MI;
- vConsts.push_back(ConstantPointerRef::get(MI));
+ vConsts.push_back(MI);
sBCons.push_back(ConstantInt::get(Type::SByteTy, hasBackEdge(MI)));
counter++;
}
StructType *sttype = StructType::get(vType);
- ConstantStruct *cstruct = ConstantStruct::get(sttype, vConsts);
+ Constant *cstruct = ConstantStruct::get(sttype, vConsts);
GlobalVariable *gb = new GlobalVariable(cstruct->getType(), true,
GlobalValue::ExternalLinkage,
cstruct, "llvmFunctionTable");
M.getGlobalList().push_back(gb);
- ConstantArray *constArray = ConstantArray::get(ArrayType::get(Type::SByteTy,
+ Constant *constArray = ConstantArray::get(ArrayType::get(Type::SByteTy,
sBCons.size()),
sBCons);
M.getGlobalList().push_back(fnCount);
return true; // Always modifies program
}
-
-} // End llvm namespace