LLVM  mainline
Defines | Functions
GlobalDCE.cpp File Reference
#include "llvm/Transforms/IPO.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/Module.h"
#include "llvm/Transforms/Utils/CtorUtils.h"
#include "llvm/Transforms/Utils/GlobalStatus.h"
#include "llvm/Pass.h"
#include <unordered_map>
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#define DEBUG_TYPE   "globaldce"


 STATISTIC (NumAliases,"Number of global aliases removed")
 STATISTIC (NumFunctions,"Number of functions removed")
 STATISTIC (NumVariables,"Number of global variables removed")
static bool isEmptyFunction (Function *F)
 Returns true if F contains only a single "ret" instruction.
 INITIALIZE_PASS (GlobalDCE,"globaldce","Dead Global Elimination", false, false) ModulePass *llvm

Define Documentation

#define DEBUG_TYPE   "globaldce"

Definition at line 30 of file GlobalDCE.cpp.

Function Documentation

"globaldce"  ,
"Dead Global Elimination ,
false  ,

Definition at line 72 of file GlobalDCE.cpp.

static bool isEmptyFunction ( Function F) [static]

Returns true if F contains only a single "ret" instruction.

Definition at line 63 of file GlobalDCE.cpp.

References llvm::BasicBlock::front(), llvm::Function::getEntryBlock(), llvm::ReturnInst::getReturnValue(), and llvm::BasicBlock::size().

STATISTIC ( NumAliases  ,
"Number of global aliases removed"   
STATISTIC ( NumFunctions  ,
"Number of functions removed"   
STATISTIC ( NumVariables  ,
"Number of global variables removed"