SimplifyLibCalls.h [plain text]
#ifndef LLVM_TRANSFORMS_UTILS_SIMPLIFYLIBCALLS_H
#define LLVM_TRANSFORMS_UTILS_SIMPLIFYLIBCALLS_H
#include "llvm/ADT/StringRef.h"
#include "llvm/Analysis/TargetLibraryInfo.h"
#include "llvm/IR/IRBuilder.h"
namespace llvm {
class Value;
class CallInst;
class DataLayout;
class Instruction;
class TargetLibraryInfo;
class BasicBlock;
class Function;
class FortifiedLibCallSimplifier {
private:
const TargetLibraryInfo *TLI;
bool OnlyLowerUnknownSize;
public:
FortifiedLibCallSimplifier(const TargetLibraryInfo *TLI,
bool OnlyLowerUnknownSize = false);
Value *optimizeCall(CallInst *CI);
private:
Value *optimizeMemCpyChk(CallInst *CI, IRBuilder<> &B);
Value *optimizeMemMoveChk(CallInst *CI, IRBuilder<> &B);
Value *optimizeMemSetChk(CallInst *CI, IRBuilder<> &B);
Value *optimizeStrpCpyChk(CallInst *CI, IRBuilder<> &B, LibFunc::Func Func);
Value *optimizeStrpNCpyChk(CallInst *CI, IRBuilder<> &B, LibFunc::Func Func);
bool isFortifiedCallFoldable(CallInst *CI, unsigned ObjSizeOp,
unsigned SizeOp, bool isString);
};
class LibCallSimplifier {
private:
FortifiedLibCallSimplifier FortifiedSimplifier;
const DataLayout &DL;
const TargetLibraryInfo *TLI;
bool UnsafeFPShrink;
function_ref<void(Instruction *, Value *)> Replacer;
static void replaceAllUsesWithDefault(Instruction *I, Value *With);
void replaceAllUsesWith(Instruction *I, Value *With);
public:
LibCallSimplifier(const DataLayout &DL, const TargetLibraryInfo *TLI,
function_ref<void(Instruction *, Value *)> Replacer =
&replaceAllUsesWithDefault);
Value *optimizeCall(CallInst *CI);
private:
Value *optimizeStrCat(CallInst *CI, IRBuilder<> &B);
Value *optimizeStrNCat(CallInst *CI, IRBuilder<> &B);
Value *optimizeStrChr(CallInst *CI, IRBuilder<> &B);
Value *optimizeStrRChr(CallInst *CI, IRBuilder<> &B);
Value *optimizeStrCmp(CallInst *CI, IRBuilder<> &B);
Value *optimizeStrNCmp(CallInst *CI, IRBuilder<> &B);
Value *optimizeStrCpy(CallInst *CI, IRBuilder<> &B);
Value *optimizeStpCpy(CallInst *CI, IRBuilder<> &B);
Value *optimizeStrNCpy(CallInst *CI, IRBuilder<> &B);
Value *optimizeStrLen(CallInst *CI, IRBuilder<> &B);
Value *optimizeStrPBrk(CallInst *CI, IRBuilder<> &B);
Value *optimizeStrTo(CallInst *CI, IRBuilder<> &B);
Value *optimizeStrSpn(CallInst *CI, IRBuilder<> &B);
Value *optimizeStrCSpn(CallInst *CI, IRBuilder<> &B);
Value *optimizeStrStr(CallInst *CI, IRBuilder<> &B);
Value *optimizeMemCmp(CallInst *CI, IRBuilder<> &B);
Value *optimizeMemCpy(CallInst *CI, IRBuilder<> &B);
Value *optimizeMemMove(CallInst *CI, IRBuilder<> &B);
Value *optimizeMemSet(CallInst *CI, IRBuilder<> &B);
Value *optimizeStringMemoryLibCall(CallInst *CI, IRBuilder<> &B);
Value *optimizeUnaryDoubleFP(CallInst *CI, IRBuilder<> &B, bool CheckRetType);
Value *optimizeBinaryDoubleFP(CallInst *CI, IRBuilder<> &B);
Value *optimizeCos(CallInst *CI, IRBuilder<> &B);
Value *optimizePow(CallInst *CI, IRBuilder<> &B);
Value *optimizeExp2(CallInst *CI, IRBuilder<> &B);
Value *optimizeFabs(CallInst *CI, IRBuilder<> &B);
Value *optimizeSqrt(CallInst *CI, IRBuilder<> &B);
Value *optimizeSinCosPi(CallInst *CI, IRBuilder<> &B);
Value *optimizeFFS(CallInst *CI, IRBuilder<> &B);
Value *optimizeAbs(CallInst *CI, IRBuilder<> &B);
Value *optimizeIsDigit(CallInst *CI, IRBuilder<> &B);
Value *optimizeIsAscii(CallInst *CI, IRBuilder<> &B);
Value *optimizeToAscii(CallInst *CI, IRBuilder<> &B);
Value *optimizeErrorReporting(CallInst *CI, IRBuilder<> &B,
int StreamArg = -1);
Value *optimizePrintF(CallInst *CI, IRBuilder<> &B);
Value *optimizeSPrintF(CallInst *CI, IRBuilder<> &B);
Value *optimizeFPrintF(CallInst *CI, IRBuilder<> &B);
Value *optimizeFWrite(CallInst *CI, IRBuilder<> &B);
Value *optimizeFPuts(CallInst *CI, IRBuilder<> &B);
Value *optimizePuts(CallInst *CI, IRBuilder<> &B);
Value *emitStrLenMemCpy(Value *Src, Value *Dst, uint64_t Len, IRBuilder<> &B);
void classifyArgUse(Value *Val, BasicBlock *BB, bool IsFloat,
SmallVectorImpl<CallInst *> &SinCalls,
SmallVectorImpl<CallInst *> &CosCalls,
SmallVectorImpl<CallInst *> &SinCosCalls);
void replaceTrigInsts(SmallVectorImpl<CallInst *> &Calls, Value *Res);
Value *optimizePrintFString(CallInst *CI, IRBuilder<> &B);
Value *optimizeSPrintFString(CallInst *CI, IRBuilder<> &B);
Value *optimizeFPrintFString(CallInst *CI, IRBuilder<> &B);
bool hasFloatVersion(StringRef FuncName);
};
}
#endif