mirror of
https://github.com/RPCS3/llvm.git
synced 2024-12-18 01:17:46 +00:00
9e9a0d5fc2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77635 91177308-0d34-0410-b5e6-96231b3b80d8
108 lines
3.3 KiB
C++
108 lines
3.3 KiB
C++
//===-- LLVMContext.cpp - Implement LLVMContext -----------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements LLVMContext, as a wrapper around the opaque
|
|
// class LLVMContextImpl.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/LLVMContext.h"
|
|
#include "llvm/Constants.h"
|
|
#include "llvm/DerivedTypes.h"
|
|
#include "llvm/Instruction.h"
|
|
#include "llvm/Metadata.h"
|
|
#include "llvm/Support/ManagedStatic.h"
|
|
#include "LLVMContextImpl.h"
|
|
#include <cstdarg>
|
|
|
|
using namespace llvm;
|
|
|
|
static ManagedStatic<LLVMContext> GlobalContext;
|
|
|
|
LLVMContext& llvm::getGlobalContext() {
|
|
return *GlobalContext;
|
|
}
|
|
|
|
LLVMContext::LLVMContext() : pImpl(new LLVMContextImpl(*this)) { }
|
|
LLVMContext::~LLVMContext() { delete pImpl; }
|
|
|
|
// Constant accessors
|
|
|
|
// Constructor to create a '0' constant of arbitrary type...
|
|
static const uint64_t zero[2] = {0, 0};
|
|
Constant* LLVMContext::getNullValue(const Type* Ty) {
|
|
switch (Ty->getTypeID()) {
|
|
case Type::IntegerTyID:
|
|
return ConstantInt::get(Ty, 0);
|
|
case Type::FloatTyID:
|
|
return ConstantFP::get(Ty->getContext(), APFloat(APInt(32, 0)));
|
|
case Type::DoubleTyID:
|
|
return ConstantFP::get(Ty->getContext(), APFloat(APInt(64, 0)));
|
|
case Type::X86_FP80TyID:
|
|
return ConstantFP::get(Ty->getContext(), APFloat(APInt(80, 2, zero)));
|
|
case Type::FP128TyID:
|
|
return ConstantFP::get(Ty->getContext(),
|
|
APFloat(APInt(128, 2, zero), true));
|
|
case Type::PPC_FP128TyID:
|
|
return ConstantFP::get(Ty->getContext(), APFloat(APInt(128, 2, zero)));
|
|
case Type::PointerTyID:
|
|
return ConstantPointerNull::get(cast<PointerType>(Ty));
|
|
case Type::StructTyID:
|
|
case Type::ArrayTyID:
|
|
case Type::VectorTyID:
|
|
return ConstantAggregateZero::get(Ty);
|
|
default:
|
|
// Function, Label, or Opaque type?
|
|
assert(!"Cannot create a null constant of that type!");
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
Constant* LLVMContext::getAllOnesValue(const Type* Ty) {
|
|
if (const IntegerType* ITy = dyn_cast<IntegerType>(Ty))
|
|
return ConstantInt::get(*this, APInt::getAllOnesValue(ITy->getBitWidth()));
|
|
|
|
std::vector<Constant*> Elts;
|
|
const VectorType* VTy = cast<VectorType>(Ty);
|
|
Elts.resize(VTy->getNumElements(), getAllOnesValue(VTy->getElementType()));
|
|
assert(Elts[0] && "Not a vector integer type!");
|
|
return cast<ConstantVector>(ConstantVector::get(Elts));
|
|
}
|
|
|
|
// ConstantInt accessors.
|
|
ConstantInt* LLVMContext::getTrue() {
|
|
assert(this && "Context not initialized!");
|
|
assert(pImpl && "Context not initialized!");
|
|
return pImpl->getTrue();
|
|
}
|
|
|
|
ConstantInt* LLVMContext::getFalse() {
|
|
assert(this && "Context not initialized!");
|
|
assert(pImpl && "Context not initialized!");
|
|
return pImpl->getFalse();
|
|
}
|
|
|
|
// MDNode accessors
|
|
MDNode* LLVMContext::getMDNode(Value* const* Vals, unsigned NumVals) {
|
|
return pImpl->getMDNode(Vals, NumVals);
|
|
}
|
|
|
|
// MDString accessors
|
|
MDString* LLVMContext::getMDString(const StringRef &Str) {
|
|
return pImpl->getMDString(Str.data(), Str.size());
|
|
}
|
|
|
|
void LLVMContext::erase(MDString *M) {
|
|
pImpl->erase(M);
|
|
}
|
|
|
|
void LLVMContext::erase(MDNode *M) {
|
|
pImpl->erase(M);
|
|
}
|