757 lines
		
	
	
		
			30 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			757 lines
		
	
	
		
			30 KiB
		
	
	
	
		
			C++
		
	
	
	
| //===- IRBuilder.cpp - Builder for LLVM Instrs ----------------------------===//
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| //
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| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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| // See https://llvm.org/LICENSE.txt for license information.
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| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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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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| 
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| #include "llvm/IR/IRBuilder.h"
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| #include "llvm/ADT/ArrayRef.h"
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| #include "llvm/ADT/None.h"
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| #include "llvm/IR/Constant.h"
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| #include "llvm/IR/Constants.h"
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| #include "llvm/IR/DerivedTypes.h"
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| #include "llvm/IR/Function.h"
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| #include "llvm/IR/GlobalValue.h"
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| #include "llvm/IR/GlobalVariable.h"
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| #include "llvm/IR/IntrinsicInst.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/Operator.h"
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| #include "llvm/IR/Statepoint.h"
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| #include "llvm/IR/Type.h"
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| #include "llvm/IR/Value.h"
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| #include "llvm/Support/Casting.h"
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| #include "llvm/Support/MathExtras.h"
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| #include <cassert>
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| #include <cstdint>
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| #include <vector>
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| 
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| using namespace llvm;
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| 
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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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|                                                   unsigned AddressSpace) {
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|   Constant *StrConstant = ConstantDataArray::getString(Context, Str);
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|   Module &M = *BB->getParent()->getParent();
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|   auto *GV = new GlobalVariable(M, StrConstant->getType(), true,
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|                                 GlobalValue::PrivateLinkage, StrConstant, Name,
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|                                 nullptr, GlobalVariable::NotThreadLocal,
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|                                 AddressSpace);
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|   GV->setUnnamedAddr(GlobalValue::UnnamedAddr::Global);
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|   GV->setAlignment(1);
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|   return GV;
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| }
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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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| 
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| Value *IRBuilderBase::getCastedInt8PtrValue(Value *Ptr) {
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|   auto *PT = cast<PointerType>(Ptr->getType());
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|   if (PT->getElementType()->isIntegerTy(8))
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|     return Ptr;
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| 
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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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| 
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| static CallInst *createCallHelper(Function *Callee, ArrayRef<Value *> Ops,
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|                                   IRBuilderBase *Builder,
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|                                   const Twine &Name = "",
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|                                   Instruction *FMFSource = nullptr) {
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|   CallInst *CI = CallInst::Create(Callee, Ops, Name);
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|   if (FMFSource)
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|     CI->copyFastMathFlags(FMFSource);
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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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| 
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| static InvokeInst *createInvokeHelper(Function *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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| 
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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, 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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|   Function *TheFn = Intrinsic::getDeclaration(M, Intrinsic::memset, Tys);
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| 
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|   CallInst *CI = createCallHelper(TheFn, Ops, this);
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| 
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|   if (Align > 0)
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|     cast<MemSetInst>(CI)->setDestAlignment(Align);
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| 
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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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| 
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|   if (ScopeTag)
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|     CI->setMetadata(LLVMContext::MD_alias_scope, ScopeTag);
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| 
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|   if (NoAliasTag)
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|     CI->setMetadata(LLVMContext::MD_noalias, NoAliasTag);
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| 
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|   return CI;
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| }
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| 
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| CallInst *IRBuilderBase::CreateElementUnorderedAtomicMemSet(
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|     Value *Ptr, Value *Val, Value *Size, unsigned Align, uint32_t ElementSize,
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|     MDNode *TBAATag, MDNode *ScopeTag, MDNode *NoAliasTag) {
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|   assert(Align >= ElementSize &&
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|          "Pointer alignment must be at least element size.");
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| 
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|   Ptr = getCastedInt8PtrValue(Ptr);
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|   Value *Ops[] = {Ptr, Val, Size, getInt32(ElementSize)};
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|   Type *Tys[] = {Ptr->getType(), Size->getType()};
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|   Module *M = BB->getParent()->getParent();
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|   Function *TheFn = Intrinsic::getDeclaration(
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|       M, Intrinsic::memset_element_unordered_atomic, Tys);
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| 
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|   CallInst *CI = createCallHelper(TheFn, Ops, this);
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| 
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|   cast<AtomicMemSetInst>(CI)->setDestAlignment(Align);
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| 
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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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| 
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|   if (ScopeTag)
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|     CI->setMetadata(LLVMContext::MD_alias_scope, ScopeTag);
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| 
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|   if (NoAliasTag)
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|     CI->setMetadata(LLVMContext::MD_noalias, NoAliasTag);
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| 
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|   return CI;
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| }
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| 
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| CallInst *IRBuilderBase::
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| CreateMemCpy(Value *Dst, unsigned DstAlign, Value *Src, unsigned SrcAlign,
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|              Value *Size, bool isVolatile, MDNode *TBAATag,
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|              MDNode *TBAAStructTag, MDNode *ScopeTag, MDNode *NoAliasTag) {
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|   assert((DstAlign == 0 || isPowerOf2_32(DstAlign)) && "Must be 0 or a power of 2");
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|   assert((SrcAlign == 0 || isPowerOf2_32(SrcAlign)) && "Must be 0 or a power of 2");
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|   Dst = getCastedInt8PtrValue(Dst);
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|   Src = getCastedInt8PtrValue(Src);
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| 
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|   Value *Ops[] = {Dst, Src, Size, 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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|   Function *TheFn = Intrinsic::getDeclaration(M, Intrinsic::memcpy, Tys);
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| 
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|   CallInst *CI = createCallHelper(TheFn, Ops, this);
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| 
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|   auto* MCI = cast<MemCpyInst>(CI);
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|   if (DstAlign > 0)
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|     MCI->setDestAlignment(DstAlign);
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|   if (SrcAlign > 0)
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|     MCI->setSourceAlignment(SrcAlign);
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| 
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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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| 
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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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| 
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|   if (ScopeTag)
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|     CI->setMetadata(LLVMContext::MD_alias_scope, ScopeTag);
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| 
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|   if (NoAliasTag)
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|     CI->setMetadata(LLVMContext::MD_noalias, NoAliasTag);
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| 
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|   return CI;
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| }
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| 
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| CallInst *IRBuilderBase::CreateElementUnorderedAtomicMemCpy(
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|     Value *Dst, unsigned DstAlign, Value *Src, unsigned SrcAlign, Value *Size,
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|     uint32_t ElementSize, MDNode *TBAATag, MDNode *TBAAStructTag,
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|     MDNode *ScopeTag, MDNode *NoAliasTag) {
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|   assert(DstAlign >= ElementSize &&
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|          "Pointer alignment must be at least element size");
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|   assert(SrcAlign >= ElementSize &&
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|          "Pointer alignment must be at least element size");
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|   Dst = getCastedInt8PtrValue(Dst);
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|   Src = getCastedInt8PtrValue(Src);
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| 
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|   Value *Ops[] = {Dst, Src, Size, getInt32(ElementSize)};
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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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|   Function *TheFn = Intrinsic::getDeclaration(
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|       M, Intrinsic::memcpy_element_unordered_atomic, Tys);
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| 
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|   CallInst *CI = createCallHelper(TheFn, Ops, this);
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| 
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|   // Set the alignment of the pointer args.
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|   auto *AMCI = cast<AtomicMemCpyInst>(CI);
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|   AMCI->setDestAlignment(DstAlign);
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|   AMCI->setSourceAlignment(SrcAlign);
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| 
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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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| 
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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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| 
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|   if (ScopeTag)
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|     CI->setMetadata(LLVMContext::MD_alias_scope, ScopeTag);
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| 
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|   if (NoAliasTag)
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|     CI->setMetadata(LLVMContext::MD_noalias, NoAliasTag);
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| 
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|   return CI;
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| }
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| 
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| CallInst *IRBuilderBase::
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| CreateMemMove(Value *Dst, unsigned DstAlign, Value *Src, unsigned SrcAlign,
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|               Value *Size, bool isVolatile, MDNode *TBAATag, MDNode *ScopeTag,
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|               MDNode *NoAliasTag) {
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|   assert((DstAlign == 0 || isPowerOf2_32(DstAlign)) && "Must be 0 or a power of 2");
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|   assert((SrcAlign == 0 || isPowerOf2_32(SrcAlign)) && "Must be 0 or a power of 2");
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|   Dst = getCastedInt8PtrValue(Dst);
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|   Src = getCastedInt8PtrValue(Src);
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| 
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|   Value *Ops[] = {Dst, Src, Size, 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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|   Function *TheFn = Intrinsic::getDeclaration(M, Intrinsic::memmove, Tys);
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| 
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|   CallInst *CI = createCallHelper(TheFn, Ops, this);
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| 
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|   auto *MMI = cast<MemMoveInst>(CI);
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|   if (DstAlign > 0)
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|     MMI->setDestAlignment(DstAlign);
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|   if (SrcAlign > 0)
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|     MMI->setSourceAlignment(SrcAlign);
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| 
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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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| 
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|   if (ScopeTag)
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|     CI->setMetadata(LLVMContext::MD_alias_scope, ScopeTag);
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| 
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|   if (NoAliasTag)
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|     CI->setMetadata(LLVMContext::MD_noalias, NoAliasTag);
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| 
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|   return CI;
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| }
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| 
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| CallInst *IRBuilderBase::CreateElementUnorderedAtomicMemMove(
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|     Value *Dst, unsigned DstAlign, Value *Src, unsigned SrcAlign, Value *Size,
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|     uint32_t ElementSize, MDNode *TBAATag, MDNode *TBAAStructTag,
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|     MDNode *ScopeTag, MDNode *NoAliasTag) {
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|   assert(DstAlign >= ElementSize &&
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|          "Pointer alignment must be at least element size");
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|   assert(SrcAlign >= ElementSize &&
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|          "Pointer alignment must be at least element size");
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|   Dst = getCastedInt8PtrValue(Dst);
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|   Src = getCastedInt8PtrValue(Src);
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| 
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|   Value *Ops[] = {Dst, Src, Size, getInt32(ElementSize)};
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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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|   Function *TheFn = Intrinsic::getDeclaration(
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|       M, Intrinsic::memmove_element_unordered_atomic, Tys);
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| 
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|   CallInst *CI = createCallHelper(TheFn, Ops, this);
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| 
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|   // Set the alignment of the pointer args.
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|   CI->addParamAttr(0, Attribute::getWithAlignment(CI->getContext(), DstAlign));
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|   CI->addParamAttr(1, Attribute::getWithAlignment(CI->getContext(), SrcAlign));
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| 
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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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| 
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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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| 
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|   if (ScopeTag)
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|     CI->setMetadata(LLVMContext::MD_alias_scope, ScopeTag);
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| 
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|   if (NoAliasTag)
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|     CI->setMetadata(LLVMContext::MD_noalias, NoAliasTag);
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| 
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|   return CI;
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| }
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| 
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| static CallInst *getReductionIntrinsic(IRBuilderBase *Builder, Intrinsic::ID ID,
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|                                     Value *Src) {
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|   Module *M = Builder->GetInsertBlock()->getParent()->getParent();
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|   Value *Ops[] = {Src};
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|   Type *Tys[] = { Src->getType()->getVectorElementType(), Src->getType() };
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|   auto Decl = Intrinsic::getDeclaration(M, ID, Tys);
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|   return createCallHelper(Decl, Ops, Builder);
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| }
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| 
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| CallInst *IRBuilderBase::CreateFAddReduce(Value *Acc, Value *Src) {
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|   Module *M = GetInsertBlock()->getParent()->getParent();
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|   Value *Ops[] = {Acc, Src};
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|   Type *Tys[] = {Acc->getType(), Src->getType()};
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|   auto Decl = Intrinsic::getDeclaration(
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|       M, Intrinsic::experimental_vector_reduce_fadd, Tys);
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|   return createCallHelper(Decl, Ops, this);
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| }
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| 
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| CallInst *IRBuilderBase::CreateFMulReduce(Value *Acc, Value *Src) {
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|   Module *M = GetInsertBlock()->getParent()->getParent();
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|   Value *Ops[] = {Acc, Src};
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|   Type *Tys[] = {Acc->getType(), Src->getType()};
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|   auto Decl = Intrinsic::getDeclaration(
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|       M, Intrinsic::experimental_vector_reduce_fmul, Tys);
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|   return createCallHelper(Decl, Ops, this);
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| }
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| 
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| CallInst *IRBuilderBase::CreateAddReduce(Value *Src) {
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|   return getReductionIntrinsic(this, Intrinsic::experimental_vector_reduce_add,
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|                                Src);
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| }
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| 
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| CallInst *IRBuilderBase::CreateMulReduce(Value *Src) {
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|   return getReductionIntrinsic(this, Intrinsic::experimental_vector_reduce_mul,
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|                                Src);
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| }
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| 
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| CallInst *IRBuilderBase::CreateAndReduce(Value *Src) {
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|   return getReductionIntrinsic(this, Intrinsic::experimental_vector_reduce_and,
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|                                Src);
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| }
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| 
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| CallInst *IRBuilderBase::CreateOrReduce(Value *Src) {
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|   return getReductionIntrinsic(this, Intrinsic::experimental_vector_reduce_or,
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|                                Src);
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| }
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| 
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| CallInst *IRBuilderBase::CreateXorReduce(Value *Src) {
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|   return getReductionIntrinsic(this, Intrinsic::experimental_vector_reduce_xor,
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|                                Src);
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| }
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| 
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| CallInst *IRBuilderBase::CreateIntMaxReduce(Value *Src, bool IsSigned) {
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|   auto ID = IsSigned ? Intrinsic::experimental_vector_reduce_smax
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|                      : Intrinsic::experimental_vector_reduce_umax;
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|   return getReductionIntrinsic(this, ID, Src);
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| }
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| 
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| CallInst *IRBuilderBase::CreateIntMinReduce(Value *Src, bool IsSigned) {
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|   auto ID = IsSigned ? Intrinsic::experimental_vector_reduce_smin
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|                      : Intrinsic::experimental_vector_reduce_umin;
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|   return getReductionIntrinsic(this, ID, Src);
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| }
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| 
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| CallInst *IRBuilderBase::CreateFPMaxReduce(Value *Src, bool NoNaN) {
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|   auto Rdx = getReductionIntrinsic(
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|       this, Intrinsic::experimental_vector_reduce_fmax, Src);
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|   if (NoNaN) {
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|     FastMathFlags FMF;
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|     FMF.setNoNaNs();
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|     Rdx->setFastMathFlags(FMF);
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|   }
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|   return Rdx;
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| }
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| 
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| CallInst *IRBuilderBase::CreateFPMinReduce(Value *Src, bool NoNaN) {
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|   auto Rdx = getReductionIntrinsic(
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|       this, Intrinsic::experimental_vector_reduce_fmin, Src);
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|   if (NoNaN) {
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|     FastMathFlags FMF;
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|     FMF.setNoNaNs();
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|     Rdx->setFastMathFlags(FMF);
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|   }
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|   return Rdx;
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| }
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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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|   Function *TheFn =
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|       Intrinsic::getDeclaration(M, Intrinsic::lifetime_start, {Ptr->getType()});
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|   return createCallHelper(TheFn, Ops, this);
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| }
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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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|   Function *TheFn =
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|       Intrinsic::getDeclaration(M, Intrinsic::lifetime_end, {Ptr->getType()});
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|   return createCallHelper(TheFn, Ops, this);
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| }
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| 
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| CallInst *IRBuilderBase::CreateInvariantStart(Value *Ptr, ConstantInt *Size) {
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| 
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|   assert(isa<PointerType>(Ptr->getType()) &&
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|          "invariant.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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|            "invariant.start requires the size to be an i64");
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| 
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|   Value *Ops[] = {Size, Ptr};
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|   // Fill in the single overloaded type: memory object type.
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|   Type *ObjectPtr[1] = {Ptr->getType()};
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|   Module *M = BB->getParent()->getParent();
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|   Function *TheFn =
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|       Intrinsic::getDeclaration(M, Intrinsic::invariant_start, ObjectPtr);
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|   return createCallHelper(TheFn, Ops, this);
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| }
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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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| 
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|   Value *Ops[] = { Cond };
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|   Module *M = BB->getParent()->getParent();
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|   Function *FnAssume = Intrinsic::getDeclaration(M, Intrinsic::assume);
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|   return createCallHelper(FnAssume, Ops, this);
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| }
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| 
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| /// Create a call to a Masked Load intrinsic.
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| /// \p Ptr      - base pointer for the load
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| /// \p Align    - alignment of the source location
 | |
| /// \p Mask     - vector of booleans which indicates what vector lanes should
 | |
| ///               be accessed in memory
 | |
| /// \p PassThru - pass-through value that is used to fill the masked-off lanes
 | |
| ///               of the result
 | |
| /// \p Name     - name of the result variable
 | |
| CallInst *IRBuilderBase::CreateMaskedLoad(Value *Ptr, unsigned Align,
 | |
|                                           Value *Mask, Value *PassThru,
 | |
|                                           const Twine &Name) {
 | |
|   auto *PtrTy = cast<PointerType>(Ptr->getType());
 | |
|   Type *DataTy = PtrTy->getElementType();
 | |
|   assert(DataTy->isVectorTy() && "Ptr should point to a vector");
 | |
|   assert(Mask && "Mask should not be all-ones (null)");
 | |
|   if (!PassThru)
 | |
|     PassThru = UndefValue::get(DataTy);
 | |
|   Type *OverloadedTypes[] = { DataTy, PtrTy };
 | |
|   Value *Ops[] = { Ptr, getInt32(Align), Mask,  PassThru};
 | |
|   return CreateMaskedIntrinsic(Intrinsic::masked_load, Ops,
 | |
|                                OverloadedTypes, Name);
 | |
| }
 | |
| 
 | |
| /// Create a call to a Masked Store intrinsic.
 | |
| /// \p Val   - data to be stored,
 | |
| /// \p Ptr   - base pointer for the store
 | |
| /// \p Align - alignment of the destination location
 | |
| /// \p Mask  - vector of booleans which indicates what vector lanes should
 | |
| ///            be accessed in memory
 | |
| CallInst *IRBuilderBase::CreateMaskedStore(Value *Val, Value *Ptr,
 | |
|                                            unsigned Align, Value *Mask) {
 | |
|   auto *PtrTy = cast<PointerType>(Ptr->getType());
 | |
|   Type *DataTy = PtrTy->getElementType();
 | |
|   assert(DataTy->isVectorTy() && "Ptr should point to a vector");
 | |
|   assert(Mask && "Mask should not be all-ones (null)");
 | |
|   Type *OverloadedTypes[] = { DataTy, PtrTy };
 | |
|   Value *Ops[] = { Val, Ptr, getInt32(Align), Mask };
 | |
|   return CreateMaskedIntrinsic(Intrinsic::masked_store, Ops, OverloadedTypes);
 | |
| }
 | |
| 
 | |
| /// Create a call to a Masked intrinsic, with given intrinsic Id,
 | |
| /// an array of operands - Ops, and an array of overloaded types -
 | |
| /// OverloadedTypes.
 | |
| CallInst *IRBuilderBase::CreateMaskedIntrinsic(Intrinsic::ID Id,
 | |
|                                                ArrayRef<Value *> Ops,
 | |
|                                                ArrayRef<Type *> OverloadedTypes,
 | |
|                                                const Twine &Name) {
 | |
|   Module *M = BB->getParent()->getParent();
 | |
|   Function *TheFn = Intrinsic::getDeclaration(M, Id, OverloadedTypes);
 | |
|   return createCallHelper(TheFn, Ops, this, Name);
 | |
| }
 | |
| 
 | |
| /// Create a call to a Masked Gather intrinsic.
 | |
| /// \p Ptrs     - vector of pointers for loading
 | |
| /// \p Align    - alignment for one element
 | |
| /// \p Mask     - vector of booleans which indicates what vector lanes should
 | |
| ///               be accessed in memory
 | |
| /// \p PassThru - pass-through value that is used to fill the masked-off lanes
 | |
| ///               of the result
 | |
| /// \p Name     - name of the result variable
 | |
| CallInst *IRBuilderBase::CreateMaskedGather(Value *Ptrs, unsigned Align,
 | |
|                                             Value *Mask,  Value *PassThru,
 | |
|                                             const Twine& Name) {
 | |
|   auto PtrsTy = cast<VectorType>(Ptrs->getType());
 | |
|   auto PtrTy = cast<PointerType>(PtrsTy->getElementType());
 | |
|   unsigned NumElts = PtrsTy->getVectorNumElements();
 | |
|   Type *DataTy = VectorType::get(PtrTy->getElementType(), NumElts);
 | |
| 
 | |
|   if (!Mask)
 | |
|     Mask = Constant::getAllOnesValue(VectorType::get(Type::getInt1Ty(Context),
 | |
|                                      NumElts));
 | |
| 
 | |
|   if (!PassThru)
 | |
|     PassThru = UndefValue::get(DataTy);
 | |
| 
 | |
|   Type *OverloadedTypes[] = {DataTy, PtrsTy};
 | |
|   Value * Ops[] = {Ptrs, getInt32(Align), Mask, PassThru};
 | |
| 
 | |
|   // We specify only one type when we create this intrinsic. Types of other
 | |
|   // arguments are derived from this type.
 | |
|   return CreateMaskedIntrinsic(Intrinsic::masked_gather, Ops, OverloadedTypes,
 | |
|                                Name);
 | |
| }
 | |
| 
 | |
| /// Create a call to a Masked Scatter intrinsic.
 | |
| /// \p Data  - data to be stored,
 | |
| /// \p Ptrs  - the vector of pointers, where the \p Data elements should be
 | |
| ///            stored
 | |
| /// \p Align - alignment for one element
 | |
| /// \p Mask  - vector of booleans which indicates what vector lanes should
 | |
| ///            be accessed in memory
 | |
| CallInst *IRBuilderBase::CreateMaskedScatter(Value *Data, Value *Ptrs,
 | |
|                                              unsigned Align, Value *Mask) {
 | |
|   auto PtrsTy = cast<VectorType>(Ptrs->getType());
 | |
|   auto DataTy = cast<VectorType>(Data->getType());
 | |
|   unsigned NumElts = PtrsTy->getVectorNumElements();
 | |
| 
 | |
| #ifndef NDEBUG
 | |
|   auto PtrTy = cast<PointerType>(PtrsTy->getElementType());
 | |
|   assert(NumElts == DataTy->getVectorNumElements() &&
 | |
|          PtrTy->getElementType() == DataTy->getElementType() &&
 | |
|          "Incompatible pointer and data types");
 | |
| #endif
 | |
| 
 | |
|   if (!Mask)
 | |
|     Mask = Constant::getAllOnesValue(VectorType::get(Type::getInt1Ty(Context),
 | |
|                                      NumElts));
 | |
| 
 | |
|   Type *OverloadedTypes[] = {DataTy, PtrsTy};
 | |
|   Value * Ops[] = {Data, Ptrs, getInt32(Align), Mask};
 | |
| 
 | |
|   // We specify only one type when we create this intrinsic. Types of other
 | |
|   // arguments are derived from this type.
 | |
|   return CreateMaskedIntrinsic(Intrinsic::masked_scatter, Ops, OverloadedTypes);
 | |
| }
 | |
| 
 | |
| template <typename T0, typename T1, typename T2, typename T3>
 | |
| static std::vector<Value *>
 | |
| getStatepointArgs(IRBuilderBase &B, uint64_t ID, uint32_t NumPatchBytes,
 | |
|                   Value *ActualCallee, uint32_t Flags, ArrayRef<T0> CallArgs,
 | |
|                   ArrayRef<T1> TransitionArgs, ArrayRef<T2> DeoptArgs,
 | |
|                   ArrayRef<T3> GCArgs) {
 | |
|   std::vector<Value *> Args;
 | |
|   Args.push_back(B.getInt64(ID));
 | |
|   Args.push_back(B.getInt32(NumPatchBytes));
 | |
|   Args.push_back(ActualCallee);
 | |
|   Args.push_back(B.getInt32(CallArgs.size()));
 | |
|   Args.push_back(B.getInt32(Flags));
 | |
|   Args.insert(Args.end(), CallArgs.begin(), CallArgs.end());
 | |
|   Args.push_back(B.getInt32(TransitionArgs.size()));
 | |
|   Args.insert(Args.end(), TransitionArgs.begin(), TransitionArgs.end());
 | |
|   Args.push_back(B.getInt32(DeoptArgs.size()));
 | |
|   Args.insert(Args.end(), DeoptArgs.begin(), DeoptArgs.end());
 | |
|   Args.insert(Args.end(), GCArgs.begin(), GCArgs.end());
 | |
| 
 | |
|   return Args;
 | |
| }
 | |
| 
 | |
| template <typename T0, typename T1, typename T2, typename T3>
 | |
| static CallInst *CreateGCStatepointCallCommon(
 | |
|     IRBuilderBase *Builder, uint64_t ID, uint32_t NumPatchBytes,
 | |
|     Value *ActualCallee, uint32_t Flags, ArrayRef<T0> CallArgs,
 | |
|     ArrayRef<T1> TransitionArgs, ArrayRef<T2> DeoptArgs, ArrayRef<T3> GCArgs,
 | |
|     const Twine &Name) {
 | |
|   // Extract out the type of the callee.
 | |
|   auto *FuncPtrType = cast<PointerType>(ActualCallee->getType());
 | |
|   assert(isa<FunctionType>(FuncPtrType->getElementType()) &&
 | |
|          "actual callee must be a callable value");
 | |
| 
 | |
|   Module *M = Builder->GetInsertBlock()->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<Value *> Args =
 | |
|       getStatepointArgs(*Builder, ID, NumPatchBytes, ActualCallee, Flags,
 | |
|                         CallArgs, TransitionArgs, DeoptArgs, GCArgs);
 | |
|   return createCallHelper(FnStatepoint, Args, Builder, Name);
 | |
| }
 | |
| 
 | |
| CallInst *IRBuilderBase::CreateGCStatepointCall(
 | |
|     uint64_t ID, uint32_t NumPatchBytes, Value *ActualCallee,
 | |
|     ArrayRef<Value *> CallArgs, ArrayRef<Value *> DeoptArgs,
 | |
|     ArrayRef<Value *> GCArgs, const Twine &Name) {
 | |
|   return CreateGCStatepointCallCommon<Value *, Value *, Value *, Value *>(
 | |
|       this, ID, NumPatchBytes, ActualCallee, uint32_t(StatepointFlags::None),
 | |
|       CallArgs, None /* No Transition Args */, DeoptArgs, GCArgs, Name);
 | |
| }
 | |
| 
 | |
| CallInst *IRBuilderBase::CreateGCStatepointCall(
 | |
|     uint64_t ID, uint32_t NumPatchBytes, Value *ActualCallee, uint32_t Flags,
 | |
|     ArrayRef<Use> CallArgs, ArrayRef<Use> TransitionArgs,
 | |
|     ArrayRef<Use> DeoptArgs, ArrayRef<Value *> GCArgs, const Twine &Name) {
 | |
|   return CreateGCStatepointCallCommon<Use, Use, Use, Value *>(
 | |
|       this, ID, NumPatchBytes, ActualCallee, Flags, CallArgs, TransitionArgs,
 | |
|       DeoptArgs, GCArgs, Name);
 | |
| }
 | |
| 
 | |
| CallInst *IRBuilderBase::CreateGCStatepointCall(
 | |
|     uint64_t ID, uint32_t NumPatchBytes, Value *ActualCallee,
 | |
|     ArrayRef<Use> CallArgs, ArrayRef<Value *> DeoptArgs,
 | |
|     ArrayRef<Value *> GCArgs, const Twine &Name) {
 | |
|   return CreateGCStatepointCallCommon<Use, Value *, Value *, Value *>(
 | |
|       this, ID, NumPatchBytes, ActualCallee, uint32_t(StatepointFlags::None),
 | |
|       CallArgs, None, DeoptArgs, GCArgs, Name);
 | |
| }
 | |
| 
 | |
| template <typename T0, typename T1, typename T2, typename T3>
 | |
| static InvokeInst *CreateGCStatepointInvokeCommon(
 | |
|     IRBuilderBase *Builder, uint64_t ID, uint32_t NumPatchBytes,
 | |
|     Value *ActualInvokee, BasicBlock *NormalDest, BasicBlock *UnwindDest,
 | |
|     uint32_t Flags, ArrayRef<T0> InvokeArgs, ArrayRef<T1> TransitionArgs,
 | |
|     ArrayRef<T2> DeoptArgs, ArrayRef<T3> GCArgs, const Twine &Name) {
 | |
|   // Extract out the type of the callee.
 | |
|   auto *FuncPtrType = cast<PointerType>(ActualInvokee->getType());
 | |
|   assert(isa<FunctionType>(FuncPtrType->getElementType()) &&
 | |
|          "actual callee must be a callable value");
 | |
| 
 | |
|   Module *M = Builder->GetInsertBlock()->getParent()->getParent();
 | |
|   // Fill in the one generic type'd argument (the function is also vararg)
 | |
|   Function *FnStatepoint = Intrinsic::getDeclaration(
 | |
|       M, Intrinsic::experimental_gc_statepoint, {FuncPtrType});
 | |
| 
 | |
|   std::vector<Value *> Args =
 | |
|       getStatepointArgs(*Builder, ID, NumPatchBytes, ActualInvokee, Flags,
 | |
|                         InvokeArgs, TransitionArgs, DeoptArgs, GCArgs);
 | |
|   return createInvokeHelper(FnStatepoint, NormalDest, UnwindDest, Args, Builder,
 | |
|                             Name);
 | |
| }
 | |
| 
 | |
| InvokeInst *IRBuilderBase::CreateGCStatepointInvoke(
 | |
|     uint64_t ID, uint32_t NumPatchBytes, Value *ActualInvokee,
 | |
|     BasicBlock *NormalDest, BasicBlock *UnwindDest,
 | |
|     ArrayRef<Value *> InvokeArgs, ArrayRef<Value *> DeoptArgs,
 | |
|     ArrayRef<Value *> GCArgs, const Twine &Name) {
 | |
|   return CreateGCStatepointInvokeCommon<Value *, Value *, Value *, Value *>(
 | |
|       this, ID, NumPatchBytes, ActualInvokee, NormalDest, UnwindDest,
 | |
|       uint32_t(StatepointFlags::None), InvokeArgs, None /* No Transition Args*/,
 | |
|       DeoptArgs, GCArgs, Name);
 | |
| }
 | |
| 
 | |
| InvokeInst *IRBuilderBase::CreateGCStatepointInvoke(
 | |
|     uint64_t ID, uint32_t NumPatchBytes, Value *ActualInvokee,
 | |
|     BasicBlock *NormalDest, BasicBlock *UnwindDest, uint32_t Flags,
 | |
|     ArrayRef<Use> InvokeArgs, ArrayRef<Use> TransitionArgs,
 | |
|     ArrayRef<Use> DeoptArgs, ArrayRef<Value *> GCArgs, const Twine &Name) {
 | |
|   return CreateGCStatepointInvokeCommon<Use, Use, Use, Value *>(
 | |
|       this, ID, NumPatchBytes, ActualInvokee, NormalDest, UnwindDest, Flags,
 | |
|       InvokeArgs, TransitionArgs, DeoptArgs, GCArgs, Name);
 | |
| }
 | |
| 
 | |
| InvokeInst *IRBuilderBase::CreateGCStatepointInvoke(
 | |
|     uint64_t ID, uint32_t NumPatchBytes, Value *ActualInvokee,
 | |
|     BasicBlock *NormalDest, BasicBlock *UnwindDest, ArrayRef<Use> InvokeArgs,
 | |
|     ArrayRef<Value *> DeoptArgs, ArrayRef<Value *> GCArgs, const Twine &Name) {
 | |
|   return CreateGCStatepointInvokeCommon<Use, Value *, Value *, Value *>(
 | |
|       this, ID, NumPatchBytes, ActualInvokee, NormalDest, UnwindDest,
 | |
|       uint32_t(StatepointFlags::None), InvokeArgs, None, 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};
 | |
|  Function *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};
 | |
|  Function *FnGCRelocate =
 | |
|      Intrinsic::getDeclaration(M, Intrinsic::experimental_gc_relocate, Types);
 | |
| 
 | |
|  Value *Args[] = {Statepoint,
 | |
|                   getInt32(BaseOffset),
 | |
|                   getInt32(DerivedOffset)};
 | |
|  return createCallHelper(FnGCRelocate, Args, this, Name);
 | |
| }
 | |
| 
 | |
| CallInst *IRBuilderBase::CreateUnaryIntrinsic(Intrinsic::ID ID, Value *V,
 | |
|                                               Instruction *FMFSource,
 | |
|                                               const Twine &Name) {
 | |
|   Module *M = BB->getModule();
 | |
|   Function *Fn = Intrinsic::getDeclaration(M, ID, {V->getType()});
 | |
|   return createCallHelper(Fn, {V}, this, Name, FMFSource);
 | |
| }
 | |
| 
 | |
| CallInst *IRBuilderBase::CreateBinaryIntrinsic(Intrinsic::ID ID, Value *LHS,
 | |
|                                                Value *RHS,
 | |
|                                                Instruction *FMFSource,
 | |
|                                                const Twine &Name) {
 | |
|   Module *M = BB->getModule();
 | |
|   Function *Fn = Intrinsic::getDeclaration(M, ID, { LHS->getType() });
 | |
|   return createCallHelper(Fn, {LHS, RHS}, this, Name, FMFSource);
 | |
| }
 | |
| 
 | |
| CallInst *IRBuilderBase::CreateIntrinsic(Intrinsic::ID ID,
 | |
|                                          ArrayRef<Type *> Types,
 | |
|                                          ArrayRef<Value *> Args,
 | |
|                                          Instruction *FMFSource,
 | |
|                                          const Twine &Name) {
 | |
|   Module *M = BB->getModule();
 | |
|   Function *Fn = Intrinsic::getDeclaration(M, ID, Types);
 | |
|   return createCallHelper(Fn, Args, this, Name, FMFSource);
 | |
| }
 |