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* Cleanup pass

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* The global variable cannot be internal or else we cannot use it!
* Always add a function to the table, even if it only has a single basic
  block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2921 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-07-16 17:42:54 +00:00
parent 131454e91d
commit 9713c4ef46
1 changed files with 10 additions and 17 deletions
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27
lib/Transforms/Instrumentation/ProfilePaths/EmitFunctions/EmitFunctions.cpp
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@ -4,17 +4,11 @@
//
//===----------------------------------------------------------------------===//
//#include "llvm/Transforms/Instrumentation/ProfilePaths.h"
//#include "llvm/Transforms/Utils/UnifyFunctionExitNodes.h"
#include "llvm/Support/CFG.h"
#include "llvm/Transforms/Instrumentation/EmitFunctions.h"
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
#include "llvm/iMemory.h"
#include "llvm/Constants.h"
#include "llvm/Module.h"
#include <iostream>
#include <fstream>
using std::vector;
@ -24,29 +18,28 @@ struct EmitFunctionTable : public Pass {
bool run(Module &M);
};
// Create a new pass to add function table
// Create a new pass to add function table
//
Pass *createEmitFunctionTablePass() {
return new EmitFunctionTable();
}
//Per Module pass for inserting function table
// Per Module pass for inserting function table
bool EmitFunctionTable::run(Module &M){
vector<const Type*> vType;
vector<Constant *> vConsts;
for(Module::iterator MI = M.begin(), ME = M.end(); MI!=ME; ++MI){
Function *F = MI;
if(F->size()<=1) continue;
ConstantPointerRef *cpref = ConstantPointerRef::get(F);
vType.push_back(MI->getType());
vConsts.push_back(cpref);
}
for(Module::iterator MI = M.begin(), ME = M.end(); MI!=ME; ++MI)
if (!MI->isExternal()) {
ConstantPointerRef *CP = ConstantPointerRef::get(MI);
vType.push_back(MI->getType());
vConsts.push_back(CP);
}
StructType *sttype = StructType::get(vType);
ConstantStruct *cstruct = ConstantStruct::get(sttype, vConsts);
GlobalVariable *gb = new GlobalVariable(cstruct->getType(), true, true,
GlobalVariable *gb = new GlobalVariable(cstruct->getType(), true, false,
cstruct, "llvmFunctionTable");
M.getGlobalList().push_back(gb);
return true; // Always modifies function
return true; // Always modifies program
}