mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-02 22:04:55 +00:00
9584e07a9c
Now that Intrinsic::ID is a typed enum, we can forward declare it and so return it from this method. This updates all users which were either using an unsigned to store it, or had a now unnecessary cast. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237810 91177308-0d34-0410-b5e6-96231b3b80d8
359 lines
14 KiB
C++
359 lines
14 KiB
C++
//===---- IRBuilder.cpp - Builder for LLVM Instrs -------------------------===//
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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 implements the IRBuilder class, which is used as a convenient way
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// to create LLVM instructions with a consistent and simplified interface.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/IR/Function.h"
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#include "llvm/IR/GlobalVariable.h"
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#include "llvm/IR/IRBuilder.h"
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#include "llvm/IR/Intrinsics.h"
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#include "llvm/IR/LLVMContext.h"
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#include "llvm/IR/Statepoint.h"
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using namespace llvm;
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/// CreateGlobalString - Make a new global variable with an initializer that
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/// has array of i8 type filled in with the nul terminated string value
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/// specified. If Name is specified, it is the name of the global variable
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/// created.
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GlobalVariable *IRBuilderBase::CreateGlobalString(StringRef Str,
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const Twine &Name) {
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Constant *StrConstant = ConstantDataArray::getString(Context, Str);
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Module &M = *BB->getParent()->getParent();
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GlobalVariable *GV = new GlobalVariable(M, StrConstant->getType(),
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true, GlobalValue::PrivateLinkage,
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StrConstant);
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GV->setName(Name);
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GV->setUnnamedAddr(true);
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return GV;
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}
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Type *IRBuilderBase::getCurrentFunctionReturnType() const {
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assert(BB && BB->getParent() && "No current function!");
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return BB->getParent()->getReturnType();
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}
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Value *IRBuilderBase::getCastedInt8PtrValue(Value *Ptr) {
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PointerType *PT = cast<PointerType>(Ptr->getType());
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if (PT->getElementType()->isIntegerTy(8))
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return Ptr;
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// Otherwise, we need to insert a bitcast.
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PT = getInt8PtrTy(PT->getAddressSpace());
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BitCastInst *BCI = new BitCastInst(Ptr, PT, "");
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BB->getInstList().insert(InsertPt, BCI);
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SetInstDebugLocation(BCI);
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return BCI;
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}
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static CallInst *createCallHelper(Value *Callee, ArrayRef<Value *> Ops,
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IRBuilderBase *Builder,
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const Twine& Name="") {
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CallInst *CI = CallInst::Create(Callee, Ops, Name);
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Builder->GetInsertBlock()->getInstList().insert(Builder->GetInsertPoint(),CI);
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Builder->SetInstDebugLocation(CI);
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return CI;
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}
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static InvokeInst *createInvokeHelper(Value *Invokee, BasicBlock *NormalDest,
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BasicBlock *UnwindDest,
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ArrayRef<Value *> Ops,
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IRBuilderBase *Builder,
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const Twine &Name = "") {
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InvokeInst *II =
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InvokeInst::Create(Invokee, NormalDest, UnwindDest, Ops, Name);
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Builder->GetInsertBlock()->getInstList().insert(Builder->GetInsertPoint(),
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II);
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Builder->SetInstDebugLocation(II);
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return II;
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}
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CallInst *IRBuilderBase::
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CreateMemSet(Value *Ptr, Value *Val, Value *Size, unsigned Align,
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bool isVolatile, MDNode *TBAATag, MDNode *ScopeTag,
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MDNode *NoAliasTag) {
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Ptr = getCastedInt8PtrValue(Ptr);
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Value *Ops[] = { Ptr, Val, Size, getInt32(Align), getInt1(isVolatile) };
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Type *Tys[] = { Ptr->getType(), Size->getType() };
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Module *M = BB->getParent()->getParent();
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Value *TheFn = Intrinsic::getDeclaration(M, Intrinsic::memset, Tys);
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CallInst *CI = createCallHelper(TheFn, Ops, this);
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// Set the TBAA info if present.
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if (TBAATag)
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CI->setMetadata(LLVMContext::MD_tbaa, TBAATag);
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if (ScopeTag)
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CI->setMetadata(LLVMContext::MD_alias_scope, ScopeTag);
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if (NoAliasTag)
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CI->setMetadata(LLVMContext::MD_noalias, NoAliasTag);
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return CI;
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}
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CallInst *IRBuilderBase::
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CreateMemCpy(Value *Dst, Value *Src, Value *Size, unsigned Align,
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bool isVolatile, MDNode *TBAATag, MDNode *TBAAStructTag,
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MDNode *ScopeTag, MDNode *NoAliasTag) {
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Dst = getCastedInt8PtrValue(Dst);
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Src = getCastedInt8PtrValue(Src);
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Value *Ops[] = { Dst, Src, Size, getInt32(Align), getInt1(isVolatile) };
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Type *Tys[] = { Dst->getType(), Src->getType(), Size->getType() };
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Module *M = BB->getParent()->getParent();
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Value *TheFn = Intrinsic::getDeclaration(M, Intrinsic::memcpy, Tys);
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CallInst *CI = createCallHelper(TheFn, Ops, this);
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// Set the TBAA info if present.
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if (TBAATag)
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CI->setMetadata(LLVMContext::MD_tbaa, TBAATag);
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// Set the TBAA Struct info if present.
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if (TBAAStructTag)
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CI->setMetadata(LLVMContext::MD_tbaa_struct, TBAAStructTag);
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if (ScopeTag)
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CI->setMetadata(LLVMContext::MD_alias_scope, ScopeTag);
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if (NoAliasTag)
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CI->setMetadata(LLVMContext::MD_noalias, NoAliasTag);
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return CI;
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}
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CallInst *IRBuilderBase::
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CreateMemMove(Value *Dst, Value *Src, Value *Size, unsigned Align,
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bool isVolatile, MDNode *TBAATag, MDNode *ScopeTag,
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MDNode *NoAliasTag) {
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Dst = getCastedInt8PtrValue(Dst);
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Src = getCastedInt8PtrValue(Src);
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Value *Ops[] = { Dst, Src, Size, getInt32(Align), getInt1(isVolatile) };
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Type *Tys[] = { Dst->getType(), Src->getType(), Size->getType() };
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Module *M = BB->getParent()->getParent();
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Value *TheFn = Intrinsic::getDeclaration(M, Intrinsic::memmove, Tys);
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CallInst *CI = createCallHelper(TheFn, Ops, this);
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// Set the TBAA info if present.
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if (TBAATag)
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CI->setMetadata(LLVMContext::MD_tbaa, TBAATag);
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if (ScopeTag)
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CI->setMetadata(LLVMContext::MD_alias_scope, ScopeTag);
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if (NoAliasTag)
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CI->setMetadata(LLVMContext::MD_noalias, NoAliasTag);
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return CI;
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}
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CallInst *IRBuilderBase::CreateLifetimeStart(Value *Ptr, ConstantInt *Size) {
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assert(isa<PointerType>(Ptr->getType()) &&
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"lifetime.start only applies to pointers.");
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Ptr = getCastedInt8PtrValue(Ptr);
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if (!Size)
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Size = getInt64(-1);
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else
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assert(Size->getType() == getInt64Ty() &&
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"lifetime.start requires the size to be an i64");
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Value *Ops[] = { Size, Ptr };
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Module *M = BB->getParent()->getParent();
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Value *TheFn = Intrinsic::getDeclaration(M, Intrinsic::lifetime_start);
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return createCallHelper(TheFn, Ops, this);
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}
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CallInst *IRBuilderBase::CreateLifetimeEnd(Value *Ptr, ConstantInt *Size) {
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assert(isa<PointerType>(Ptr->getType()) &&
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"lifetime.end only applies to pointers.");
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Ptr = getCastedInt8PtrValue(Ptr);
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if (!Size)
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Size = getInt64(-1);
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else
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assert(Size->getType() == getInt64Ty() &&
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"lifetime.end requires the size to be an i64");
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Value *Ops[] = { Size, Ptr };
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Module *M = BB->getParent()->getParent();
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Value *TheFn = Intrinsic::getDeclaration(M, Intrinsic::lifetime_end);
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return createCallHelper(TheFn, Ops, this);
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}
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CallInst *IRBuilderBase::CreateAssumption(Value *Cond) {
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assert(Cond->getType() == getInt1Ty() &&
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"an assumption condition must be of type i1");
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Value *Ops[] = { Cond };
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Module *M = BB->getParent()->getParent();
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Value *FnAssume = Intrinsic::getDeclaration(M, Intrinsic::assume);
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return createCallHelper(FnAssume, Ops, this);
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}
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/// Create a call to a Masked Load intrinsic.
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/// Ptr - the base pointer for the load
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/// Align - alignment of the source location
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/// Mask - an vector of booleans which indicates what vector lanes should
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/// be accessed in memory
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/// PassThru - a pass-through value that is used to fill the masked-off lanes
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/// of the result
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/// Name - name of the result variable
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CallInst *IRBuilderBase::CreateMaskedLoad(Value *Ptr, unsigned Align,
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Value *Mask, Value *PassThru,
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const Twine &Name) {
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assert(Ptr->getType()->isPointerTy() && "Ptr must be of pointer type");
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// DataTy is the overloaded type
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Type *DataTy = cast<PointerType>(Ptr->getType())->getElementType();
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assert(DataTy->isVectorTy() && "Ptr should point to a vector");
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if (!PassThru)
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PassThru = UndefValue::get(DataTy);
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Value *Ops[] = { Ptr, getInt32(Align), Mask, PassThru};
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return CreateMaskedIntrinsic(Intrinsic::masked_load, Ops, DataTy, Name);
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}
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/// Create a call to a Masked Store intrinsic.
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/// Val - the data to be stored,
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/// Ptr - the base pointer for the store
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/// Align - alignment of the destination location
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/// Mask - an vector of booleans which indicates what vector lanes should
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/// be accessed in memory
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CallInst *IRBuilderBase::CreateMaskedStore(Value *Val, Value *Ptr,
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unsigned Align, Value *Mask) {
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Value *Ops[] = { Val, Ptr, getInt32(Align), Mask };
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// Type of the data to be stored - the only one overloaded type
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return CreateMaskedIntrinsic(Intrinsic::masked_store, Ops, Val->getType());
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}
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/// Create a call to a Masked intrinsic, with given intrinsic Id,
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/// an array of operands - Ops, and one overloaded type - DataTy
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CallInst *IRBuilderBase::CreateMaskedIntrinsic(Intrinsic::ID Id,
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ArrayRef<Value *> Ops,
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Type *DataTy,
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const Twine &Name) {
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Module *M = BB->getParent()->getParent();
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Type *OverloadedTypes[] = { DataTy };
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Value *TheFn = Intrinsic::getDeclaration(M, Id, OverloadedTypes);
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return createCallHelper(TheFn, Ops, this, Name);
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}
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static std::vector<Value *>
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getStatepointArgs(IRBuilderBase &B, uint64_t ID, uint32_t NumPatchBytes,
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Value *ActualCallee, ArrayRef<Value *> CallArgs,
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ArrayRef<Value *> DeoptArgs, ArrayRef<Value *> GCArgs) {
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std::vector<Value *> Args;
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Args.push_back(B.getInt64(ID));
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Args.push_back(B.getInt32(NumPatchBytes));
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Args.push_back(ActualCallee);
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Args.push_back(B.getInt32(CallArgs.size()));
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Args.push_back(B.getInt32((unsigned)StatepointFlags::None));
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Args.insert(Args.end(), CallArgs.begin(), CallArgs.end());
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Args.push_back(B.getInt32(0 /* no transition args */));
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Args.push_back(B.getInt32(DeoptArgs.size()));
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Args.insert(Args.end(), DeoptArgs.begin(), DeoptArgs.end());
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Args.insert(Args.end(), GCArgs.begin(), GCArgs.end());
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return Args;
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}
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CallInst *IRBuilderBase::CreateGCStatepointCall(
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uint64_t ID, uint32_t NumPatchBytes, Value *ActualCallee,
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ArrayRef<Value *> CallArgs, ArrayRef<Value *> DeoptArgs,
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ArrayRef<Value *> GCArgs, const Twine &Name) {
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// Extract out the type of the callee.
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PointerType *FuncPtrType = cast<PointerType>(ActualCallee->getType());
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assert(isa<FunctionType>(FuncPtrType->getElementType()) &&
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"actual callee must be a callable value");
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Module *M = BB->getParent()->getParent();
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// Fill in the one generic type'd argument (the function is also vararg)
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Type *ArgTypes[] = { FuncPtrType };
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Function *FnStatepoint =
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Intrinsic::getDeclaration(M, Intrinsic::experimental_gc_statepoint,
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ArgTypes);
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std::vector<llvm::Value *> Args = getStatepointArgs(
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*this, ID, NumPatchBytes, ActualCallee, CallArgs, DeoptArgs, GCArgs);
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return createCallHelper(FnStatepoint, Args, this, Name);
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}
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CallInst *IRBuilderBase::CreateGCStatepointCall(
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uint64_t ID, uint32_t NumPatchBytes, Value *ActualCallee,
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ArrayRef<Use> CallArgs, ArrayRef<Value *> DeoptArgs,
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ArrayRef<Value *> GCArgs, const Twine &Name) {
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std::vector<Value *> VCallArgs;
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for (auto &U : CallArgs)
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VCallArgs.push_back(U.get());
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return CreateGCStatepointCall(ID, NumPatchBytes, ActualCallee, VCallArgs,
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DeoptArgs, GCArgs, Name);
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}
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InvokeInst *IRBuilderBase::CreateGCStatepointInvoke(
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uint64_t ID, uint32_t NumPatchBytes, Value *ActualInvokee,
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BasicBlock *NormalDest, BasicBlock *UnwindDest,
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ArrayRef<Value *> InvokeArgs, ArrayRef<Value *> DeoptArgs,
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ArrayRef<Value *> GCArgs, const Twine &Name) {
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// Extract out the type of the callee.
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PointerType *FuncPtrType = cast<PointerType>(ActualInvokee->getType());
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assert(isa<FunctionType>(FuncPtrType->getElementType()) &&
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"actual callee must be a callable value");
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Module *M = BB->getParent()->getParent();
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// Fill in the one generic type'd argument (the function is also vararg)
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Function *FnStatepoint = Intrinsic::getDeclaration(
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M, Intrinsic::experimental_gc_statepoint, {FuncPtrType});
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std::vector<llvm::Value *> Args = getStatepointArgs(
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*this, ID, NumPatchBytes, ActualInvokee, InvokeArgs, DeoptArgs, GCArgs);
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return createInvokeHelper(FnStatepoint, NormalDest, UnwindDest, Args, this,
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Name);
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}
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InvokeInst *IRBuilderBase::CreateGCStatepointInvoke(
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uint64_t ID, uint32_t NumPatchBytes, Value *ActualInvokee,
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BasicBlock *NormalDest, BasicBlock *UnwindDest, ArrayRef<Use> InvokeArgs,
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ArrayRef<Value *> DeoptArgs, ArrayRef<Value *> GCArgs, const Twine &Name) {
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std::vector<Value *> VCallArgs;
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for (auto &U : InvokeArgs)
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VCallArgs.push_back(U.get());
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return CreateGCStatepointInvoke(ID, NumPatchBytes, ActualInvokee, NormalDest,
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UnwindDest, VCallArgs, DeoptArgs, GCArgs,
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Name);
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}
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CallInst *IRBuilderBase::CreateGCResult(Instruction *Statepoint,
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Type *ResultType,
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const Twine &Name) {
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Intrinsic::ID ID = Intrinsic::experimental_gc_result;
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Module *M = BB->getParent()->getParent();
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Type *Types[] = {ResultType};
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Value *FnGCResult = Intrinsic::getDeclaration(M, ID, Types);
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Value *Args[] = {Statepoint};
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return createCallHelper(FnGCResult, Args, this, Name);
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}
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CallInst *IRBuilderBase::CreateGCRelocate(Instruction *Statepoint,
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int BaseOffset,
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int DerivedOffset,
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Type *ResultType,
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const Twine &Name) {
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Module *M = BB->getParent()->getParent();
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Type *Types[] = {ResultType};
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Value *FnGCRelocate =
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Intrinsic::getDeclaration(M, Intrinsic::experimental_gc_relocate, Types);
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Value *Args[] = {Statepoint,
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getInt32(BaseOffset),
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getInt32(DerivedOffset)};
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return createCallHelper(FnGCRelocate, Args, this, Name);
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}
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