60 lines
1.6 KiB
C++
60 lines
1.6 KiB
C++
|
/**
|
||
|
|
* Remove Clang cuda builtin functions and variables
|
||
|
|
*/
|
||
|
|
#include "RemoveCudaBuiltin.h"
|
||
|
|
#include "llvm/IR/Function.h"
|
||
|
|
#include "llvm/IR/GlobalValue.h"
|
||
|
|
#include "llvm/IR/IRBuilder.h"
|
||
|
|
#include "llvm/IR/Instructions.h"
|
||
|
|
#include "llvm/IR/LLVMContext.h"
|
||
|
|
#include "llvm/IR/Module.h"
|
||
|
|
#include "llvm/Support/ToolOutputFile.h"
|
||
|
|
#include <iostream>
|
||
|
|
#include <map>
|
||
|
|
#include <set>
|
||
|
|
|
||
|
|
using namespace llvm;
|
||
|
|
|
||
|
|
void RemoveCudaBuiltin(llvm::Module *M) {
|
||
|
|
|
||
|
|
std::set<llvm::Function *> need_remove;
|
||
|
|
|
||
|
|
if (GlobalVariable *gv = M->getGlobalVariable("llvm.global_ctors")) {
|
||
|
|
gv->dropAllReferences();
|
||
|
|
gv->eraseFromParent();
|
||
|
|
}
|
||
|
|
Function *c_tor = NULL;
|
||
|
|
if (c_tor = M->getFunction("__cuda_module_ctor")) {
|
||
|
|
c_tor->dropAllReferences();
|
||
|
|
c_tor->eraseFromParent();
|
||
|
|
}
|
||
|
|
if (c_tor = M->getFunction("__cuda_module_dtor")) {
|
||
|
|
c_tor->dropAllReferences();
|
||
|
|
c_tor->eraseFromParent();
|
||
|
|
}
|
||
|
|
if (c_tor = M->getFunction("__cuda_register_globals")) {
|
||
|
|
|
||
|
|
c_tor->dropAllReferences();
|
||
|
|
c_tor->eraseFromParent();
|
||
|
|
}
|
||
|
|
for (Module::iterator i = M->begin(), e = M->end(); i != e; ++i) {
|
||
|
|
Function *F = &(*i);
|
||
|
|
auto func_name = F->getName().str();
|
||
|
|
|
||
|
|
if (func_name == "__cuda_module_dtor" ||
|
||
|
|
func_name == "__cuda_register_globals" ||
|
||
|
|
func_name == "__cudaRegisterFunction" ||
|
||
|
|
func_name == "__cudaRegisterVar" ||
|
||
|
|
func_name == "__cudaRegisterFatBinary" ||
|
||
|
|
func_name == "__cuda_module_ctor" ||
|
||
|
|
func_name == "__cudaRegisterFatBinaryEnd" ||
|
||
|
|
func_name == "__cudaUnregisterFatBinary") {
|
||
|
|
need_remove.insert(F);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
for (auto f : need_remove) {
|
||
|
|
f->dropAllReferences();
|
||
|
|
f->eraseFromParent();
|
||
|
|
}
|
||
|
|
}
|