LLVMContextImpl.cpp File Reference

#include "LLVMContextImpl.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/OptBisect.h"
#include "llvm/IR/Type.h"
#include "llvm/Support/ManagedStatic.h"
#include <cassert>
#include <utility>
#include "llvm/IR/Metadata.def"

Include dependency graph for LLVMContextImpl.cpp:

Go to the source code of this file.

Namespaces
	llvm
	This class represents lattice values for constants.

Macros
#define	HANDLE_MDNODE_LEAF_UNIQUABLE(CLASS)
#define	HANDLE_MDNODE_LEAF_UNIQUABLE(CLASS)

Functions
static const Metadata *	llvm::get_hashable_data (const MDOperand &X)
	Make MDOperand transparent for hashing. More...

Variables
static ManagedStatic< OptBisect >	OptBisector
	Singleton instance of the OptBisect class. More...

Macro Definition Documentation

HANDLE_MDNODE_LEAF_UNIQUABLE [1/2]

#define HANDLE_MDNODE_LEAF_UNIQUABLE

(

CLASS

)

Value:

for (auto *I : CLASS##s)                                                     \
    I->dropAllReferences();

HANDLE_MDNODE_LEAF_UNIQUABLE [2/2]

#define HANDLE_MDNODE_LEAF_UNIQUABLE

(

CLASS

)

Value:

for (CLASS * I : CLASS##s)                                                   \
    delete I;

Variable Documentation

OptBisector

ManagedStatic<OptBisect> OptBisector

static

Singleton instance of the OptBisect class.

This singleton is accessed via the LLVMContext::getOptPassGate() function. It provides a mechanism to disable passes and individual optimizations at compile time based on a command line option (-opt-bisect-limit) in order to perform a bisecting search for optimization-related problems.

Even if multiple LLVMContext objects are created, they will all return the same instance of OptBisect in order to provide a single bisect count. Any code that uses the OptBisect object should be serialized when bisection is enabled in order to enable a consistent bisect count.

Definition at line 242 of file LLVMContextImpl.cpp.