mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-26 04:32:44 +01:00
d6ef954184
Use the IRBuilder helpers for gc.statepoint and gc.result, instead of coding the construction by hand. Note that the gc.statepoint IRBuilder handles only CallInst, not InvokeInst; retain that part of hand-coding. Differential Revision: http://reviews.llvm.org/D7518 llvm-svn: 230591
301 lines
12 KiB
C++
301 lines
12 KiB
C++
//===---- IRBuilder.cpp - Builder for LLVM Instrs -------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements the IRBuilder class, which is used as a convenient way
|
|
// to create LLVM instructions with a consistent and simplified interface.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/IR/Function.h"
|
|
#include "llvm/IR/GlobalVariable.h"
|
|
#include "llvm/IR/IRBuilder.h"
|
|
#include "llvm/IR/Intrinsics.h"
|
|
#include "llvm/IR/LLVMContext.h"
|
|
using namespace llvm;
|
|
|
|
/// CreateGlobalString - Make a new global variable with an initializer that
|
|
/// has array of i8 type filled in with the nul terminated string value
|
|
/// specified. If Name is specified, it is the name of the global variable
|
|
/// created.
|
|
Value *IRBuilderBase::CreateGlobalString(StringRef Str, const Twine &Name) {
|
|
Constant *StrConstant = ConstantDataArray::getString(Context, Str);
|
|
Module &M = *BB->getParent()->getParent();
|
|
GlobalVariable *GV = new GlobalVariable(M, StrConstant->getType(),
|
|
true, GlobalValue::PrivateLinkage,
|
|
StrConstant);
|
|
GV->setName(Name);
|
|
GV->setUnnamedAddr(true);
|
|
return GV;
|
|
}
|
|
|
|
Type *IRBuilderBase::getCurrentFunctionReturnType() const {
|
|
assert(BB && BB->getParent() && "No current function!");
|
|
return BB->getParent()->getReturnType();
|
|
}
|
|
|
|
Value *IRBuilderBase::getCastedInt8PtrValue(Value *Ptr) {
|
|
PointerType *PT = cast<PointerType>(Ptr->getType());
|
|
if (PT->getElementType()->isIntegerTy(8))
|
|
return Ptr;
|
|
|
|
// Otherwise, we need to insert a bitcast.
|
|
PT = getInt8PtrTy(PT->getAddressSpace());
|
|
BitCastInst *BCI = new BitCastInst(Ptr, PT, "");
|
|
BB->getInstList().insert(InsertPt, BCI);
|
|
SetInstDebugLocation(BCI);
|
|
return BCI;
|
|
}
|
|
|
|
static CallInst *createCallHelper(Value *Callee, ArrayRef<Value *> Ops,
|
|
IRBuilderBase *Builder,
|
|
const Twine& Name="") {
|
|
CallInst *CI = CallInst::Create(Callee, Ops, Name);
|
|
Builder->GetInsertBlock()->getInstList().insert(Builder->GetInsertPoint(),CI);
|
|
Builder->SetInstDebugLocation(CI);
|
|
return CI;
|
|
}
|
|
|
|
CallInst *IRBuilderBase::
|
|
CreateMemSet(Value *Ptr, Value *Val, Value *Size, unsigned Align,
|
|
bool isVolatile, MDNode *TBAATag, MDNode *ScopeTag,
|
|
MDNode *NoAliasTag) {
|
|
Ptr = getCastedInt8PtrValue(Ptr);
|
|
Value *Ops[] = { Ptr, Val, Size, getInt32(Align), getInt1(isVolatile) };
|
|
Type *Tys[] = { Ptr->getType(), Size->getType() };
|
|
Module *M = BB->getParent()->getParent();
|
|
Value *TheFn = Intrinsic::getDeclaration(M, Intrinsic::memset, Tys);
|
|
|
|
CallInst *CI = createCallHelper(TheFn, Ops, this);
|
|
|
|
// Set the TBAA info if present.
|
|
if (TBAATag)
|
|
CI->setMetadata(LLVMContext::MD_tbaa, TBAATag);
|
|
|
|
if (ScopeTag)
|
|
CI->setMetadata(LLVMContext::MD_alias_scope, ScopeTag);
|
|
|
|
if (NoAliasTag)
|
|
CI->setMetadata(LLVMContext::MD_noalias, NoAliasTag);
|
|
|
|
return CI;
|
|
}
|
|
|
|
CallInst *IRBuilderBase::
|
|
CreateMemCpy(Value *Dst, Value *Src, Value *Size, unsigned Align,
|
|
bool isVolatile, MDNode *TBAATag, MDNode *TBAAStructTag,
|
|
MDNode *ScopeTag, MDNode *NoAliasTag) {
|
|
Dst = getCastedInt8PtrValue(Dst);
|
|
Src = getCastedInt8PtrValue(Src);
|
|
|
|
Value *Ops[] = { Dst, Src, Size, getInt32(Align), getInt1(isVolatile) };
|
|
Type *Tys[] = { Dst->getType(), Src->getType(), Size->getType() };
|
|
Module *M = BB->getParent()->getParent();
|
|
Value *TheFn = Intrinsic::getDeclaration(M, Intrinsic::memcpy, Tys);
|
|
|
|
CallInst *CI = createCallHelper(TheFn, Ops, this);
|
|
|
|
// Set the TBAA info if present.
|
|
if (TBAATag)
|
|
CI->setMetadata(LLVMContext::MD_tbaa, TBAATag);
|
|
|
|
// Set the TBAA Struct info if present.
|
|
if (TBAAStructTag)
|
|
CI->setMetadata(LLVMContext::MD_tbaa_struct, TBAAStructTag);
|
|
|
|
if (ScopeTag)
|
|
CI->setMetadata(LLVMContext::MD_alias_scope, ScopeTag);
|
|
|
|
if (NoAliasTag)
|
|
CI->setMetadata(LLVMContext::MD_noalias, NoAliasTag);
|
|
|
|
return CI;
|
|
}
|
|
|
|
CallInst *IRBuilderBase::
|
|
CreateMemMove(Value *Dst, Value *Src, Value *Size, unsigned Align,
|
|
bool isVolatile, MDNode *TBAATag, MDNode *ScopeTag,
|
|
MDNode *NoAliasTag) {
|
|
Dst = getCastedInt8PtrValue(Dst);
|
|
Src = getCastedInt8PtrValue(Src);
|
|
|
|
Value *Ops[] = { Dst, Src, Size, getInt32(Align), getInt1(isVolatile) };
|
|
Type *Tys[] = { Dst->getType(), Src->getType(), Size->getType() };
|
|
Module *M = BB->getParent()->getParent();
|
|
Value *TheFn = Intrinsic::getDeclaration(M, Intrinsic::memmove, Tys);
|
|
|
|
CallInst *CI = createCallHelper(TheFn, Ops, this);
|
|
|
|
// Set the TBAA info if present.
|
|
if (TBAATag)
|
|
CI->setMetadata(LLVMContext::MD_tbaa, TBAATag);
|
|
|
|
if (ScopeTag)
|
|
CI->setMetadata(LLVMContext::MD_alias_scope, ScopeTag);
|
|
|
|
if (NoAliasTag)
|
|
CI->setMetadata(LLVMContext::MD_noalias, NoAliasTag);
|
|
|
|
return CI;
|
|
}
|
|
|
|
CallInst *IRBuilderBase::CreateLifetimeStart(Value *Ptr, ConstantInt *Size) {
|
|
assert(isa<PointerType>(Ptr->getType()) &&
|
|
"lifetime.start only applies to pointers.");
|
|
Ptr = getCastedInt8PtrValue(Ptr);
|
|
if (!Size)
|
|
Size = getInt64(-1);
|
|
else
|
|
assert(Size->getType() == getInt64Ty() &&
|
|
"lifetime.start requires the size to be an i64");
|
|
Value *Ops[] = { Size, Ptr };
|
|
Module *M = BB->getParent()->getParent();
|
|
Value *TheFn = Intrinsic::getDeclaration(M, Intrinsic::lifetime_start);
|
|
return createCallHelper(TheFn, Ops, this);
|
|
}
|
|
|
|
CallInst *IRBuilderBase::CreateLifetimeEnd(Value *Ptr, ConstantInt *Size) {
|
|
assert(isa<PointerType>(Ptr->getType()) &&
|
|
"lifetime.end only applies to pointers.");
|
|
Ptr = getCastedInt8PtrValue(Ptr);
|
|
if (!Size)
|
|
Size = getInt64(-1);
|
|
else
|
|
assert(Size->getType() == getInt64Ty() &&
|
|
"lifetime.end requires the size to be an i64");
|
|
Value *Ops[] = { Size, Ptr };
|
|
Module *M = BB->getParent()->getParent();
|
|
Value *TheFn = Intrinsic::getDeclaration(M, Intrinsic::lifetime_end);
|
|
return createCallHelper(TheFn, Ops, this);
|
|
}
|
|
|
|
CallInst *IRBuilderBase::CreateAssumption(Value *Cond) {
|
|
assert(Cond->getType() == getInt1Ty() &&
|
|
"an assumption condition must be of type i1");
|
|
|
|
Value *Ops[] = { Cond };
|
|
Module *M = BB->getParent()->getParent();
|
|
Value *FnAssume = Intrinsic::getDeclaration(M, Intrinsic::assume);
|
|
return createCallHelper(FnAssume, Ops, this);
|
|
}
|
|
|
|
/// Create a call to a Masked Load intrinsic.
|
|
/// Ptr - the base pointer for the load
|
|
/// Align - alignment of the source location
|
|
/// Mask - an vector of booleans which indicates what vector lanes should
|
|
/// be accessed in memory
|
|
/// PassThru - a pass-through value that is used to fill the masked-off lanes
|
|
/// of the result
|
|
/// Name - name of the result variable
|
|
CallInst *IRBuilderBase::CreateMaskedLoad(Value *Ptr, unsigned Align,
|
|
Value *Mask, Value *PassThru,
|
|
const Twine &Name) {
|
|
assert(Ptr->getType()->isPointerTy() && "Ptr must be of pointer type");
|
|
// DataTy is the overloaded type
|
|
Type *DataTy = cast<PointerType>(Ptr->getType())->getElementType();
|
|
assert(DataTy->isVectorTy() && "Ptr should point to a vector");
|
|
if (!PassThru)
|
|
PassThru = UndefValue::get(DataTy);
|
|
Value *Ops[] = { Ptr, getInt32(Align), Mask, PassThru};
|
|
return CreateMaskedIntrinsic(Intrinsic::masked_load, Ops, DataTy, Name);
|
|
}
|
|
|
|
/// Create a call to a Masked Store intrinsic.
|
|
/// Val - the data to be stored,
|
|
/// Ptr - the base pointer for the store
|
|
/// Align - alignment of the destination location
|
|
/// Mask - an vector of booleans which indicates what vector lanes should
|
|
/// be accessed in memory
|
|
CallInst *IRBuilderBase::CreateMaskedStore(Value *Val, Value *Ptr,
|
|
unsigned Align, Value *Mask) {
|
|
Value *Ops[] = { Val, Ptr, getInt32(Align), Mask };
|
|
// Type of the data to be stored - the only one overloaded type
|
|
return CreateMaskedIntrinsic(Intrinsic::masked_store, Ops, Val->getType());
|
|
}
|
|
|
|
/// Create a call to a Masked intrinsic, with given intrinsic Id,
|
|
/// an array of operands - Ops, and one overloaded type - DataTy
|
|
CallInst *IRBuilderBase::CreateMaskedIntrinsic(unsigned Id,
|
|
ArrayRef<Value *> Ops,
|
|
Type *DataTy,
|
|
const Twine &Name) {
|
|
Module *M = BB->getParent()->getParent();
|
|
Type *OverloadedTypes[] = { DataTy };
|
|
Value *TheFn = Intrinsic::getDeclaration(M, (Intrinsic::ID)Id, OverloadedTypes);
|
|
return createCallHelper(TheFn, Ops, this, Name);
|
|
}
|
|
|
|
CallInst *IRBuilderBase::CreateGCStatepoint(Value *ActualCallee,
|
|
ArrayRef<Value *> CallArgs,
|
|
ArrayRef<Value *> DeoptArgs,
|
|
ArrayRef<Value *> GCArgs,
|
|
const Twine &Name) {
|
|
// Extract out the type of the callee.
|
|
PointerType *FuncPtrType = cast<PointerType>(ActualCallee->getType());
|
|
assert(isa<FunctionType>(FuncPtrType->getElementType()) &&
|
|
"actual callee must be a callable value");
|
|
|
|
|
|
Module *M = BB->getParent()->getParent();
|
|
// Fill in the one generic type'd argument (the function is also vararg)
|
|
Type *ArgTypes[] = { FuncPtrType };
|
|
Function *FnStatepoint =
|
|
Intrinsic::getDeclaration(M, Intrinsic::experimental_gc_statepoint,
|
|
ArgTypes);
|
|
|
|
std::vector<llvm::Value *> args;
|
|
args.push_back(ActualCallee);
|
|
args.push_back(getInt32(CallArgs.size()));
|
|
args.push_back(getInt32(0 /*unused*/));
|
|
args.insert(args.end(), CallArgs.begin(), CallArgs.end());
|
|
args.push_back(getInt32(DeoptArgs.size()));
|
|
args.insert(args.end(), DeoptArgs.begin(), DeoptArgs.end());
|
|
args.insert(args.end(), GCArgs.begin(), GCArgs.end());
|
|
|
|
return createCallHelper(FnStatepoint, args, this, Name);
|
|
}
|
|
|
|
CallInst *IRBuilderBase::CreateGCStatepoint(Value *ActualCallee,
|
|
ArrayRef<Use> CallArgs,
|
|
ArrayRef<Value *> DeoptArgs,
|
|
ArrayRef<Value *> GCArgs,
|
|
const Twine &Name) {
|
|
std::vector<Value *> VCallArgs;
|
|
for (auto &U : CallArgs)
|
|
VCallArgs.push_back(U.get());
|
|
return CreateGCStatepoint(ActualCallee, VCallArgs, DeoptArgs, GCArgs, Name);
|
|
}
|
|
|
|
CallInst *IRBuilderBase::CreateGCResult(Instruction *Statepoint,
|
|
Type *ResultType,
|
|
const Twine &Name) {
|
|
Intrinsic::ID ID = Intrinsic::experimental_gc_result;
|
|
Module *M = BB->getParent()->getParent();
|
|
Type *Types[] = {ResultType};
|
|
Value *FnGCResult = Intrinsic::getDeclaration(M, ID, Types);
|
|
|
|
Value *Args[] = {Statepoint};
|
|
return createCallHelper(FnGCResult, Args, this, Name);
|
|
}
|
|
|
|
CallInst *IRBuilderBase::CreateGCRelocate(Instruction *Statepoint,
|
|
int BaseOffset,
|
|
int DerivedOffset,
|
|
Type *ResultType,
|
|
const Twine &Name) {
|
|
Module *M = BB->getParent()->getParent();
|
|
Type *Types[] = {ResultType};
|
|
Value *FnGCRelocate =
|
|
Intrinsic::getDeclaration(M, Intrinsic::experimental_gc_relocate, Types);
|
|
|
|
Value *Args[] = {Statepoint,
|
|
getInt32(BaseOffset),
|
|
getInt32(DerivedOffset)};
|
|
return createCallHelper(FnGCRelocate, Args, this, Name);
|
|
}
|