MemoryBuiltins.h File Reference

#include "llvm/ADT/APInt.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/Analysis/TargetFolder.h"
#include "llvm/Analysis/TargetLibraryInfo.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/InstVisitor.h"
#include "llvm/IR/ValueHandle.h"
#include <cstdint>
#include <utility>

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Classes
struct	llvm::ObjectSizeOpts
	Various options to control the behavior of getObjectSize. More...
class	llvm::ObjectSizeOffsetVisitor
	Evaluate the size and offset of an object pointed to by a Value* statically. More...
class	llvm::ObjectSizeOffsetEvaluator
	Evaluate the size and offset of an object pointed to by a Value*. More...

Namespaces
	llvm
	This is an optimization pass for GlobalISel generic memory operations.

Typedefs
using	llvm::SizeOffsetType = std::pair< APInt, APInt >
using	llvm::SizeOffsetEvalType = std::pair< Value *, Value * >

Functions
bool	llvm::isAllocationFn (const Value *V, const TargetLibraryInfo *TLI)
	Tests if a value is a call or invoke to a library function that allocates or reallocates memory (either malloc, calloc, realloc, or strdup like). More...
bool	llvm::isAllocationFn (const Value *V, function_ref< const TargetLibraryInfo &(Function &)> GetTLI)
bool	llvm::isMallocOrCallocLikeFn (const Value *V, const TargetLibraryInfo *TLI)
	Tests if a value is a call or invoke to a library function that allocates memory similar to malloc or calloc. More...
bool	llvm::isAllocLikeFn (const Value *V, const TargetLibraryInfo *TLI)
	Tests if a value is a call or invoke to a library function that allocates memory (either malloc, calloc, or strdup like). More...
bool	llvm::isReallocLikeFn (const Value *V, const TargetLibraryInfo *TLI)
	Tests if a value is a call or invoke to a library function that reallocates memory (e.g., realloc). More...
bool	llvm::isReallocLikeFn (const Function *F, const TargetLibraryInfo *TLI)
	Tests if a function is a call or invoke to a library function that reallocates memory (e.g., realloc). More...
bool	llvm::isLibFreeFunction (const Function *F, const LibFunc TLIFn)
	isLibFreeFunction - Returns true if the function is a builtin free() More...
const CallInst *	llvm::isFreeCall (const Value *I, const TargetLibraryInfo *TLI)
	isFreeCall - Returns non-null if the value is a call to the builtin free() More...
CallInst *	llvm::isFreeCall (Value *I, const TargetLibraryInfo *TLI)
bool	llvm::isAllocRemovable (const CallBase *V, const TargetLibraryInfo *TLI)
	Return false if the allocation can have side effects on the program state we are required to preserve beyond the effect of allocating a new object. More...
Value *	llvm::getAllocAlignment (const CallBase *V, const TargetLibraryInfo *TLI)
	Gets the alignment argument for an aligned_alloc-like function, using either built-in knowledge based on fuction names/signatures or allocalign attributes. More...
Optional< APInt >	llvm::getAllocSize (const CallBase *CB, const TargetLibraryInfo *TLI, std::function< const Value *(const Value *)> Mapper)
	Return the size of the requested allocation. More...
Constant *	llvm::getInitialValueOfAllocation (const Value *V, const TargetLibraryInfo *TLI, Type *Ty)
	If this is a call to an allocation function that initializes memory to a fixed value, return said value in the requested type. More...
Optional< StringRef >	llvm::getAllocationFamily (const Value *I, const TargetLibraryInfo *TLI)
	If a function is part of an allocation family (e.g. More...
bool	llvm::getObjectSize (const Value *Ptr, uint64_t &Size, const DataLayout &DL, const TargetLibraryInfo *TLI, ObjectSizeOpts Opts={})
	Compute the size of the object pointed by Ptr. More...
Value *	llvm::lowerObjectSizeCall (IntrinsicInst *ObjectSize, const DataLayout &DL, const TargetLibraryInfo *TLI, bool MustSucceed)
	Try to turn a call to @llvm.objectsize into an integer value of the given Type. More...
Value *	llvm::lowerObjectSizeCall (IntrinsicInst *ObjectSize, const DataLayout &DL, const TargetLibraryInfo *TLI, AAResults *AA, bool MustSucceed)