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https://github.com/c64scene-ar/llvm-6502.git
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529919ff31
Summary: Now that the DataLayout is a mandatory part of the module, let's start cleaning the codebase. This patch is a first attempt at doing that. This patch is not exactly NFC as for instance some places were passing a nullptr instead of the DataLayout, possibly just because there was a default value on the DataLayout argument to many functions in the API. Even though it is not purely NFC, there is no change in the validation. I turned as many pointer to DataLayout to references, this helped figuring out all the places where a nullptr could come up. I had initially a local version of this patch broken into over 30 independant, commits but some later commit were cleaning the API and touching part of the code modified in the previous commits, so it seemed cleaner without the intermediate state. Test Plan: Reviewers: echristo Subscribers: llvm-commits From: Mehdi Amini <mehdi.amini@apple.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231740 91177308-0d34-0410-b5e6-96231b3b80d8
270 lines
10 KiB
C++
270 lines
10 KiB
C++
//====- TargetFolder.h - Constant folding helper ---------------*- C++ -*-====//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the TargetFolder class, a helper for IRBuilder.
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// It provides IRBuilder with a set of methods for creating constants with
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// target dependent folding, in addition to the same target-independent
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// folding that the ConstantFolder class provides. For general constant
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// creation and folding, use ConstantExpr and the routines in
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// llvm/Analysis/ConstantFolding.h.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_ANALYSIS_TARGETFOLDER_H
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#define LLVM_ANALYSIS_TARGETFOLDER_H
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/Analysis/ConstantFolding.h"
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#include "llvm/IR/Constants.h"
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#include "llvm/IR/InstrTypes.h"
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namespace llvm {
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class DataLayout;
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/// TargetFolder - Create constants with target dependent folding.
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class TargetFolder {
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const DataLayout &DL;
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/// Fold - Fold the constant using target specific information.
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Constant *Fold(Constant *C) const {
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if (ConstantExpr *CE = dyn_cast<ConstantExpr>(C))
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if (Constant *CF = ConstantFoldConstantExpression(CE, DL))
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return CF;
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return C;
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}
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public:
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explicit TargetFolder(const DataLayout &DL) : DL(DL) {}
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//===--------------------------------------------------------------------===//
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// Binary Operators
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//===--------------------------------------------------------------------===//
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Constant *CreateAdd(Constant *LHS, Constant *RHS,
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bool HasNUW = false, bool HasNSW = false) const {
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return Fold(ConstantExpr::getAdd(LHS, RHS, HasNUW, HasNSW));
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}
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Constant *CreateFAdd(Constant *LHS, Constant *RHS) const {
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return Fold(ConstantExpr::getFAdd(LHS, RHS));
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}
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Constant *CreateSub(Constant *LHS, Constant *RHS,
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bool HasNUW = false, bool HasNSW = false) const {
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return Fold(ConstantExpr::getSub(LHS, RHS, HasNUW, HasNSW));
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}
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Constant *CreateFSub(Constant *LHS, Constant *RHS) const {
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return Fold(ConstantExpr::getFSub(LHS, RHS));
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}
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Constant *CreateMul(Constant *LHS, Constant *RHS,
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bool HasNUW = false, bool HasNSW = false) const {
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return Fold(ConstantExpr::getMul(LHS, RHS, HasNUW, HasNSW));
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}
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Constant *CreateFMul(Constant *LHS, Constant *RHS) const {
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return Fold(ConstantExpr::getFMul(LHS, RHS));
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}
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Constant *CreateUDiv(Constant *LHS, Constant *RHS, bool isExact = false)const{
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return Fold(ConstantExpr::getUDiv(LHS, RHS, isExact));
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}
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Constant *CreateSDiv(Constant *LHS, Constant *RHS, bool isExact = false)const{
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return Fold(ConstantExpr::getSDiv(LHS, RHS, isExact));
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}
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Constant *CreateFDiv(Constant *LHS, Constant *RHS) const {
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return Fold(ConstantExpr::getFDiv(LHS, RHS));
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}
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Constant *CreateURem(Constant *LHS, Constant *RHS) const {
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return Fold(ConstantExpr::getURem(LHS, RHS));
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}
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Constant *CreateSRem(Constant *LHS, Constant *RHS) const {
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return Fold(ConstantExpr::getSRem(LHS, RHS));
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}
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Constant *CreateFRem(Constant *LHS, Constant *RHS) const {
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return Fold(ConstantExpr::getFRem(LHS, RHS));
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}
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Constant *CreateShl(Constant *LHS, Constant *RHS,
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bool HasNUW = false, bool HasNSW = false) const {
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return Fold(ConstantExpr::getShl(LHS, RHS, HasNUW, HasNSW));
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}
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Constant *CreateLShr(Constant *LHS, Constant *RHS, bool isExact = false)const{
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return Fold(ConstantExpr::getLShr(LHS, RHS, isExact));
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}
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Constant *CreateAShr(Constant *LHS, Constant *RHS, bool isExact = false)const{
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return Fold(ConstantExpr::getAShr(LHS, RHS, isExact));
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}
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Constant *CreateAnd(Constant *LHS, Constant *RHS) const {
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return Fold(ConstantExpr::getAnd(LHS, RHS));
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}
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Constant *CreateOr(Constant *LHS, Constant *RHS) const {
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return Fold(ConstantExpr::getOr(LHS, RHS));
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}
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Constant *CreateXor(Constant *LHS, Constant *RHS) const {
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return Fold(ConstantExpr::getXor(LHS, RHS));
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}
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Constant *CreateBinOp(Instruction::BinaryOps Opc,
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Constant *LHS, Constant *RHS) const {
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return Fold(ConstantExpr::get(Opc, LHS, RHS));
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}
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//===--------------------------------------------------------------------===//
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// Unary Operators
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//===--------------------------------------------------------------------===//
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Constant *CreateNeg(Constant *C,
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bool HasNUW = false, bool HasNSW = false) const {
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return Fold(ConstantExpr::getNeg(C, HasNUW, HasNSW));
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}
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Constant *CreateFNeg(Constant *C) const {
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return Fold(ConstantExpr::getFNeg(C));
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}
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Constant *CreateNot(Constant *C) const {
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return Fold(ConstantExpr::getNot(C));
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}
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//===--------------------------------------------------------------------===//
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// Memory Instructions
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//===--------------------------------------------------------------------===//
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Constant *CreateGetElementPtr(Constant *C,
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ArrayRef<Constant *> IdxList) const {
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return Fold(ConstantExpr::getGetElementPtr(C, IdxList));
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}
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Constant *CreateGetElementPtr(Constant *C, Constant *Idx) const {
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// This form of the function only exists to avoid ambiguous overload
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// warnings about whether to convert Idx to ArrayRef<Constant *> or
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// ArrayRef<Value *>.
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return Fold(ConstantExpr::getGetElementPtr(C, Idx));
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}
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Constant *CreateGetElementPtr(Constant *C,
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ArrayRef<Value *> IdxList) const {
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return Fold(ConstantExpr::getGetElementPtr(C, IdxList));
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}
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Constant *CreateInBoundsGetElementPtr(Constant *C,
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ArrayRef<Constant *> IdxList) const {
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return Fold(ConstantExpr::getInBoundsGetElementPtr(C, IdxList));
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}
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Constant *CreateInBoundsGetElementPtr(Constant *C, Constant *Idx) const {
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// This form of the function only exists to avoid ambiguous overload
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// warnings about whether to convert Idx to ArrayRef<Constant *> or
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// ArrayRef<Value *>.
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return Fold(ConstantExpr::getInBoundsGetElementPtr(C, Idx));
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}
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Constant *CreateInBoundsGetElementPtr(Constant *C,
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ArrayRef<Value *> IdxList) const {
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return Fold(ConstantExpr::getInBoundsGetElementPtr(C, IdxList));
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}
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//===--------------------------------------------------------------------===//
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// Cast/Conversion Operators
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//===--------------------------------------------------------------------===//
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Constant *CreateCast(Instruction::CastOps Op, Constant *C,
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Type *DestTy) const {
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if (C->getType() == DestTy)
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return C; // avoid calling Fold
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return Fold(ConstantExpr::getCast(Op, C, DestTy));
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}
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Constant *CreateIntCast(Constant *C, Type *DestTy,
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bool isSigned) const {
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if (C->getType() == DestTy)
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return C; // avoid calling Fold
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return Fold(ConstantExpr::getIntegerCast(C, DestTy, isSigned));
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}
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Constant *CreatePointerCast(Constant *C, Type *DestTy) const {
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if (C->getType() == DestTy)
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return C; // avoid calling Fold
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return Fold(ConstantExpr::getPointerCast(C, DestTy));
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}
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Constant *CreateFPCast(Constant *C, Type *DestTy) const {
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if (C->getType() == DestTy)
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return C; // avoid calling Fold
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return Fold(ConstantExpr::getFPCast(C, DestTy));
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}
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Constant *CreateBitCast(Constant *C, Type *DestTy) const {
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return CreateCast(Instruction::BitCast, C, DestTy);
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}
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Constant *CreateIntToPtr(Constant *C, Type *DestTy) const {
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return CreateCast(Instruction::IntToPtr, C, DestTy);
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}
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Constant *CreatePtrToInt(Constant *C, Type *DestTy) const {
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return CreateCast(Instruction::PtrToInt, C, DestTy);
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}
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Constant *CreateZExtOrBitCast(Constant *C, Type *DestTy) const {
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if (C->getType() == DestTy)
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return C; // avoid calling Fold
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return Fold(ConstantExpr::getZExtOrBitCast(C, DestTy));
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}
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Constant *CreateSExtOrBitCast(Constant *C, Type *DestTy) const {
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if (C->getType() == DestTy)
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return C; // avoid calling Fold
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return Fold(ConstantExpr::getSExtOrBitCast(C, DestTy));
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}
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Constant *CreateTruncOrBitCast(Constant *C, Type *DestTy) const {
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if (C->getType() == DestTy)
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return C; // avoid calling Fold
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return Fold(ConstantExpr::getTruncOrBitCast(C, DestTy));
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}
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Constant *CreatePointerBitCastOrAddrSpaceCast(Constant *C,
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Type *DestTy) const {
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if (C->getType() == DestTy)
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return C; // avoid calling Fold
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return Fold(ConstantExpr::getPointerBitCastOrAddrSpaceCast(C, DestTy));
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}
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//===--------------------------------------------------------------------===//
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// Compare Instructions
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//===--------------------------------------------------------------------===//
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Constant *CreateICmp(CmpInst::Predicate P, Constant *LHS,
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Constant *RHS) const {
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return Fold(ConstantExpr::getCompare(P, LHS, RHS));
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}
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Constant *CreateFCmp(CmpInst::Predicate P, Constant *LHS,
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Constant *RHS) const {
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return Fold(ConstantExpr::getCompare(P, LHS, RHS));
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}
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//===--------------------------------------------------------------------===//
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// Other Instructions
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//===--------------------------------------------------------------------===//
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Constant *CreateSelect(Constant *C, Constant *True, Constant *False) const {
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return Fold(ConstantExpr::getSelect(C, True, False));
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}
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Constant *CreateExtractElement(Constant *Vec, Constant *Idx) const {
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return Fold(ConstantExpr::getExtractElement(Vec, Idx));
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}
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Constant *CreateInsertElement(Constant *Vec, Constant *NewElt,
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Constant *Idx) const {
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return Fold(ConstantExpr::getInsertElement(Vec, NewElt, Idx));
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}
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Constant *CreateShuffleVector(Constant *V1, Constant *V2,
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Constant *Mask) const {
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return Fold(ConstantExpr::getShuffleVector(V1, V2, Mask));
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}
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Constant *CreateExtractValue(Constant *Agg,
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ArrayRef<unsigned> IdxList) const {
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return Fold(ConstantExpr::getExtractValue(Agg, IdxList));
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}
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Constant *CreateInsertValue(Constant *Agg, Constant *Val,
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ArrayRef<unsigned> IdxList) const {
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return Fold(ConstantExpr::getInsertValue(Agg, Val, IdxList));
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}
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};
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}
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#endif
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