LLVM API Documentation
#include "llvm/Transforms/Scalar.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/Module.h"
#include "llvm/Pass.h"
#include "llvm/Support/CFG.h"
#include "llvm/Transforms/Utils/Local.h"
Go to the source code of this file.
Macros | |
#define | DEBUG_TYPE "simplifycfg" |
Functions | |
STATISTIC (NumSimpl,"Number of blocks simplified") | |
INITIALIZE_PASS_BEGIN (CFGSimplifyPass,"simplifycfg","Simplify the CFG", false, false) INITIALIZE_PASS_END(CFGSimplifyPass | |
static bool | mergeEmptyReturnBlocks (Function &F) |
static bool | iterativelySimplifyCFG (Function &F, const TargetTransformInfo &TTI, const DataLayout *TD) |
Variables | |
simplifycfg | |
Simplify the | CFG |
Simplify the | false |
#define DEBUG_TYPE "simplifycfg" |
Definition at line 24 of file SimplifyCFGPass.cpp.
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static |
iterativelySimplifyCFG - Call SimplifyCFG on all the blocks in the function, iterating until no more changes are made.
Definition at line 147 of file SimplifyCFGPass.cpp.
References llvm::Function::begin(), llvm::Function::end(), and llvm::SimplifyCFG().
mergeEmptyReturnBlocks - If we have more than one empty (other than phi node) return blocks, merge them together to promote recursive block merging.
Definition at line 71 of file SimplifyCFGPass.cpp.
References llvm::PHINode::addIncoming(), llvm::BasicBlock::begin(), llvm::Function::begin(), llvm::PHINode::Create(), llvm::BranchInst::Create(), llvm::dyn_cast(), llvm::Function::end(), llvm::Instruction::eraseFromParent(), llvm::BasicBlock::eraseFromParent(), llvm::BasicBlock::front(), llvm::User::getNumOperands(), llvm::User::getOperand(), llvm::BasicBlock::getTerminator(), llvm::Value::getType(), I, llvm::pred_begin(), llvm::pred_end(), llvm::Value::replaceAllUsesWith(), llvm::AArch64ISD::Ret, and llvm::User::setOperand().
STATISTIC | ( | NumSimpl | , |
"Number of blocks simplified" | |||
) |
Simplify the CFG |
Definition at line 61 of file SimplifyCFGPass.cpp.
Simplify the false |
Definition at line 61 of file SimplifyCFGPass.cpp.
simplifycfg |
Definition at line 61 of file SimplifyCFGPass.cpp.