forked from OSchip/llvm-project
1979 lines
64 KiB
C++
1979 lines
64 KiB
C++
//===- Attributes.cpp - Implement AttributesList --------------------------===//
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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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// \file
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// This file implements the Attribute, AttributeImpl, AttrBuilder,
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// AttributeListImpl, and AttributeList classes.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/IR/Attributes.h"
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#include "AttributeImpl.h"
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#include "LLVMContextImpl.h"
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/ADT/FoldingSet.h"
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#include "llvm/ADT/Optional.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/ADT/StringSwitch.h"
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#include "llvm/Config/llvm-config.h"
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#include "llvm/IR/Function.h"
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#include "llvm/IR/LLVMContext.h"
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#include "llvm/IR/Type.h"
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#include "llvm/Support/Compiler.h"
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#include "llvm/Support/Debug.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/raw_ostream.h"
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#include <algorithm>
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#include <cassert>
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#include <cstddef>
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#include <cstdint>
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#include <limits>
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#include <string>
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#include <tuple>
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#include <utility>
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using namespace llvm;
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//===----------------------------------------------------------------------===//
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// Attribute Construction Methods
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//===----------------------------------------------------------------------===//
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// allocsize has two integer arguments, but because they're both 32 bits, we can
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// pack them into one 64-bit value, at the cost of making said value
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// nonsensical.
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//
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// In order to do this, we need to reserve one value of the second (optional)
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// allocsize argument to signify "not present."
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static const unsigned AllocSizeNumElemsNotPresent = -1;
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static uint64_t packAllocSizeArgs(unsigned ElemSizeArg,
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const Optional<unsigned> &NumElemsArg) {
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assert((!NumElemsArg.hasValue() ||
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*NumElemsArg != AllocSizeNumElemsNotPresent) &&
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"Attempting to pack a reserved value");
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return uint64_t(ElemSizeArg) << 32 |
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NumElemsArg.getValueOr(AllocSizeNumElemsNotPresent);
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}
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static std::pair<unsigned, Optional<unsigned>>
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unpackAllocSizeArgs(uint64_t Num) {
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unsigned NumElems = Num & std::numeric_limits<unsigned>::max();
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unsigned ElemSizeArg = Num >> 32;
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Optional<unsigned> NumElemsArg;
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if (NumElems != AllocSizeNumElemsNotPresent)
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NumElemsArg = NumElems;
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return std::make_pair(ElemSizeArg, NumElemsArg);
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}
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static uint64_t packVScaleRangeArgs(unsigned MinValue,
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Optional<unsigned> MaxValue) {
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return uint64_t(MinValue) << 32 | MaxValue.getValueOr(0);
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}
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static std::pair<unsigned, Optional<unsigned>>
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unpackVScaleRangeArgs(uint64_t Value) {
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unsigned MaxValue = Value & std::numeric_limits<unsigned>::max();
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unsigned MinValue = Value >> 32;
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return std::make_pair(MinValue,
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MaxValue > 0 ? MaxValue : Optional<unsigned>());
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}
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Attribute Attribute::get(LLVMContext &Context, Attribute::AttrKind Kind,
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uint64_t Val) {
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if (Val)
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assert(Attribute::isIntAttrKind(Kind) && "Not an int attribute");
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else
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assert(Attribute::isEnumAttrKind(Kind) && "Not an enum attribute");
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LLVMContextImpl *pImpl = Context.pImpl;
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FoldingSetNodeID ID;
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ID.AddInteger(Kind);
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if (Val) ID.AddInteger(Val);
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void *InsertPoint;
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AttributeImpl *PA = pImpl->AttrsSet.FindNodeOrInsertPos(ID, InsertPoint);
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if (!PA) {
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// If we didn't find any existing attributes of the same shape then create a
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// new one and insert it.
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if (!Val)
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PA = new (pImpl->Alloc) EnumAttributeImpl(Kind);
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else
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PA = new (pImpl->Alloc) IntAttributeImpl(Kind, Val);
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pImpl->AttrsSet.InsertNode(PA, InsertPoint);
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}
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// Return the Attribute that we found or created.
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return Attribute(PA);
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}
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Attribute Attribute::get(LLVMContext &Context, StringRef Kind, StringRef Val) {
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LLVMContextImpl *pImpl = Context.pImpl;
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FoldingSetNodeID ID;
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ID.AddString(Kind);
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if (!Val.empty()) ID.AddString(Val);
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void *InsertPoint;
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AttributeImpl *PA = pImpl->AttrsSet.FindNodeOrInsertPos(ID, InsertPoint);
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if (!PA) {
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// If we didn't find any existing attributes of the same shape then create a
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// new one and insert it.
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void *Mem =
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pImpl->Alloc.Allocate(StringAttributeImpl::totalSizeToAlloc(Kind, Val),
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alignof(StringAttributeImpl));
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PA = new (Mem) StringAttributeImpl(Kind, Val);
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pImpl->AttrsSet.InsertNode(PA, InsertPoint);
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}
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// Return the Attribute that we found or created.
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return Attribute(PA);
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}
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Attribute Attribute::get(LLVMContext &Context, Attribute::AttrKind Kind,
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Type *Ty) {
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assert(Attribute::isTypeAttrKind(Kind) && "Not a type attribute");
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LLVMContextImpl *pImpl = Context.pImpl;
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FoldingSetNodeID ID;
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ID.AddInteger(Kind);
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ID.AddPointer(Ty);
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void *InsertPoint;
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AttributeImpl *PA = pImpl->AttrsSet.FindNodeOrInsertPos(ID, InsertPoint);
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if (!PA) {
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// If we didn't find any existing attributes of the same shape then create a
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// new one and insert it.
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PA = new (pImpl->Alloc) TypeAttributeImpl(Kind, Ty);
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pImpl->AttrsSet.InsertNode(PA, InsertPoint);
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}
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// Return the Attribute that we found or created.
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return Attribute(PA);
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}
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Attribute Attribute::getWithAlignment(LLVMContext &Context, Align A) {
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assert(A <= llvm::Value::MaximumAlignment && "Alignment too large.");
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return get(Context, Alignment, A.value());
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}
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Attribute Attribute::getWithStackAlignment(LLVMContext &Context, Align A) {
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assert(A <= 0x100 && "Alignment too large.");
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return get(Context, StackAlignment, A.value());
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}
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Attribute Attribute::getWithDereferenceableBytes(LLVMContext &Context,
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uint64_t Bytes) {
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assert(Bytes && "Bytes must be non-zero.");
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return get(Context, Dereferenceable, Bytes);
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}
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Attribute Attribute::getWithDereferenceableOrNullBytes(LLVMContext &Context,
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uint64_t Bytes) {
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assert(Bytes && "Bytes must be non-zero.");
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return get(Context, DereferenceableOrNull, Bytes);
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}
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Attribute Attribute::getWithByValType(LLVMContext &Context, Type *Ty) {
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return get(Context, ByVal, Ty);
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}
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Attribute Attribute::getWithStructRetType(LLVMContext &Context, Type *Ty) {
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return get(Context, StructRet, Ty);
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}
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Attribute Attribute::getWithByRefType(LLVMContext &Context, Type *Ty) {
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return get(Context, ByRef, Ty);
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}
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Attribute Attribute::getWithPreallocatedType(LLVMContext &Context, Type *Ty) {
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return get(Context, Preallocated, Ty);
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}
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Attribute Attribute::getWithInAllocaType(LLVMContext &Context, Type *Ty) {
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return get(Context, InAlloca, Ty);
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}
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Attribute
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Attribute::getWithAllocSizeArgs(LLVMContext &Context, unsigned ElemSizeArg,
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const Optional<unsigned> &NumElemsArg) {
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assert(!(ElemSizeArg == 0 && NumElemsArg && *NumElemsArg == 0) &&
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"Invalid allocsize arguments -- given allocsize(0, 0)");
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return get(Context, AllocSize, packAllocSizeArgs(ElemSizeArg, NumElemsArg));
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}
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Attribute Attribute::getWithVScaleRangeArgs(LLVMContext &Context,
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unsigned MinValue,
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unsigned MaxValue) {
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return get(Context, VScaleRange, packVScaleRangeArgs(MinValue, MaxValue));
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}
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Attribute::AttrKind Attribute::getAttrKindFromName(StringRef AttrName) {
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return StringSwitch<Attribute::AttrKind>(AttrName)
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#define GET_ATTR_NAMES
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#define ATTRIBUTE_ENUM(ENUM_NAME, DISPLAY_NAME) \
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.Case(#DISPLAY_NAME, Attribute::ENUM_NAME)
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#include "llvm/IR/Attributes.inc"
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.Default(Attribute::None);
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}
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StringRef Attribute::getNameFromAttrKind(Attribute::AttrKind AttrKind) {
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switch (AttrKind) {
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#define GET_ATTR_NAMES
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#define ATTRIBUTE_ENUM(ENUM_NAME, DISPLAY_NAME) \
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case Attribute::ENUM_NAME: \
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return #DISPLAY_NAME;
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#include "llvm/IR/Attributes.inc"
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case Attribute::None:
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return "none";
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default:
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llvm_unreachable("invalid Kind");
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}
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}
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bool Attribute::isExistingAttribute(StringRef Name) {
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return StringSwitch<bool>(Name)
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#define GET_ATTR_NAMES
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#define ATTRIBUTE_ALL(ENUM_NAME, DISPLAY_NAME) .Case(#DISPLAY_NAME, true)
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#include "llvm/IR/Attributes.inc"
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.Default(false);
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}
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//===----------------------------------------------------------------------===//
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// Attribute Accessor Methods
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//===----------------------------------------------------------------------===//
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bool Attribute::isEnumAttribute() const {
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return pImpl && pImpl->isEnumAttribute();
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}
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bool Attribute::isIntAttribute() const {
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return pImpl && pImpl->isIntAttribute();
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}
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bool Attribute::isStringAttribute() const {
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return pImpl && pImpl->isStringAttribute();
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}
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bool Attribute::isTypeAttribute() const {
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return pImpl && pImpl->isTypeAttribute();
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}
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Attribute::AttrKind Attribute::getKindAsEnum() const {
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if (!pImpl) return None;
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assert((isEnumAttribute() || isIntAttribute() || isTypeAttribute()) &&
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"Invalid attribute type to get the kind as an enum!");
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return pImpl->getKindAsEnum();
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}
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uint64_t Attribute::getValueAsInt() const {
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if (!pImpl) return 0;
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assert(isIntAttribute() &&
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"Expected the attribute to be an integer attribute!");
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return pImpl->getValueAsInt();
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}
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bool Attribute::getValueAsBool() const {
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if (!pImpl) return false;
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assert(isStringAttribute() &&
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"Expected the attribute to be a string attribute!");
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return pImpl->getValueAsBool();
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}
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StringRef Attribute::getKindAsString() const {
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if (!pImpl) return {};
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assert(isStringAttribute() &&
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"Invalid attribute type to get the kind as a string!");
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return pImpl->getKindAsString();
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}
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StringRef Attribute::getValueAsString() const {
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if (!pImpl) return {};
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assert(isStringAttribute() &&
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"Invalid attribute type to get the value as a string!");
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return pImpl->getValueAsString();
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}
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Type *Attribute::getValueAsType() const {
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if (!pImpl) return {};
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assert(isTypeAttribute() &&
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"Invalid attribute type to get the value as a type!");
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return pImpl->getValueAsType();
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}
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bool Attribute::hasAttribute(AttrKind Kind) const {
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return (pImpl && pImpl->hasAttribute(Kind)) || (!pImpl && Kind == None);
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}
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bool Attribute::hasAttribute(StringRef Kind) const {
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if (!isStringAttribute()) return false;
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return pImpl && pImpl->hasAttribute(Kind);
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}
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MaybeAlign Attribute::getAlignment() const {
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assert(hasAttribute(Attribute::Alignment) &&
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"Trying to get alignment from non-alignment attribute!");
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return MaybeAlign(pImpl->getValueAsInt());
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}
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MaybeAlign Attribute::getStackAlignment() const {
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assert(hasAttribute(Attribute::StackAlignment) &&
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"Trying to get alignment from non-alignment attribute!");
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return MaybeAlign(pImpl->getValueAsInt());
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}
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uint64_t Attribute::getDereferenceableBytes() const {
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assert(hasAttribute(Attribute::Dereferenceable) &&
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"Trying to get dereferenceable bytes from "
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"non-dereferenceable attribute!");
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return pImpl->getValueAsInt();
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}
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uint64_t Attribute::getDereferenceableOrNullBytes() const {
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assert(hasAttribute(Attribute::DereferenceableOrNull) &&
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"Trying to get dereferenceable bytes from "
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"non-dereferenceable attribute!");
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return pImpl->getValueAsInt();
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}
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std::pair<unsigned, Optional<unsigned>> Attribute::getAllocSizeArgs() const {
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assert(hasAttribute(Attribute::AllocSize) &&
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"Trying to get allocsize args from non-allocsize attribute");
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return unpackAllocSizeArgs(pImpl->getValueAsInt());
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}
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unsigned Attribute::getVScaleRangeMin() const {
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assert(hasAttribute(Attribute::VScaleRange) &&
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"Trying to get vscale args from non-vscale attribute");
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return unpackVScaleRangeArgs(pImpl->getValueAsInt()).first;
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}
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Optional<unsigned> Attribute::getVScaleRangeMax() const {
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assert(hasAttribute(Attribute::VScaleRange) &&
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"Trying to get vscale args from non-vscale attribute");
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return unpackVScaleRangeArgs(pImpl->getValueAsInt()).second;
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}
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std::string Attribute::getAsString(bool InAttrGrp) const {
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if (!pImpl) return {};
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if (isEnumAttribute())
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return getNameFromAttrKind(getKindAsEnum()).str();
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if (isTypeAttribute()) {
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std::string Result = getNameFromAttrKind(getKindAsEnum()).str();
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Result += '(';
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raw_string_ostream OS(Result);
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getValueAsType()->print(OS, false, true);
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OS.flush();
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Result += ')';
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return Result;
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}
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// FIXME: These should be output like this:
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//
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// align=4
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// alignstack=8
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//
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if (hasAttribute(Attribute::Alignment))
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return (InAttrGrp ? "align=" + Twine(getValueAsInt())
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: "align " + Twine(getValueAsInt()))
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.str();
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auto AttrWithBytesToString = [&](const char *Name) {
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return (InAttrGrp ? Name + ("=" + Twine(getValueAsInt()))
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: Name + ("(" + Twine(getValueAsInt())) + ")")
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.str();
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};
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if (hasAttribute(Attribute::StackAlignment))
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return AttrWithBytesToString("alignstack");
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if (hasAttribute(Attribute::Dereferenceable))
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return AttrWithBytesToString("dereferenceable");
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if (hasAttribute(Attribute::DereferenceableOrNull))
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return AttrWithBytesToString("dereferenceable_or_null");
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if (hasAttribute(Attribute::AllocSize)) {
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unsigned ElemSize;
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Optional<unsigned> NumElems;
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std::tie(ElemSize, NumElems) = getAllocSizeArgs();
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return (NumElems
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? "allocsize(" + Twine(ElemSize) + "," + Twine(*NumElems) + ")"
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: "allocsize(" + Twine(ElemSize) + ")")
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.str();
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}
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if (hasAttribute(Attribute::VScaleRange)) {
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unsigned MinValue = getVScaleRangeMin();
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Optional<unsigned> MaxValue = getVScaleRangeMax();
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return ("vscale_range(" + Twine(MinValue) + "," +
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Twine(MaxValue.getValueOr(0)) + ")")
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.str();
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}
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// Convert target-dependent attributes to strings of the form:
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//
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// "kind"
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// "kind" = "value"
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//
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if (isStringAttribute()) {
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std::string Result;
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{
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raw_string_ostream OS(Result);
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OS << '"' << getKindAsString() << '"';
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// Since some attribute strings contain special characters that cannot be
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// printable, those have to be escaped to make the attribute value
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// printable as is. e.g. "\01__gnu_mcount_nc"
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const auto &AttrVal = pImpl->getValueAsString();
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if (!AttrVal.empty()) {
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OS << "=\"";
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printEscapedString(AttrVal, OS);
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OS << "\"";
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}
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}
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return Result;
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}
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llvm_unreachable("Unknown attribute");
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}
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bool Attribute::hasParentContext(LLVMContext &C) const {
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assert(isValid() && "invalid Attribute doesn't refer to any context");
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FoldingSetNodeID ID;
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pImpl->Profile(ID);
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void *Unused;
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return C.pImpl->AttrsSet.FindNodeOrInsertPos(ID, Unused) == pImpl;
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}
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bool Attribute::operator<(Attribute A) const {
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if (!pImpl && !A.pImpl) return false;
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if (!pImpl) return true;
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if (!A.pImpl) return false;
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return *pImpl < *A.pImpl;
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}
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void Attribute::Profile(FoldingSetNodeID &ID) const {
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ID.AddPointer(pImpl);
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}
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enum AttributeProperty {
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FnAttr = (1 << 0),
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ParamAttr = (1 << 1),
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RetAttr = (1 << 2),
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};
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#define GET_ATTR_PROP_TABLE
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#include "llvm/IR/Attributes.inc"
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static bool hasAttributeProperty(Attribute::AttrKind Kind,
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AttributeProperty Prop) {
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unsigned Index = Kind - 1;
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assert(Index < sizeof(AttrPropTable) / sizeof(AttrPropTable[0]) &&
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"Invalid attribute kind");
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return AttrPropTable[Index] & Prop;
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}
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bool Attribute::canUseAsFnAttr(AttrKind Kind) {
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return hasAttributeProperty(Kind, AttributeProperty::FnAttr);
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}
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bool Attribute::canUseAsParamAttr(AttrKind Kind) {
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return hasAttributeProperty(Kind, AttributeProperty::ParamAttr);
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}
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bool Attribute::canUseAsRetAttr(AttrKind Kind) {
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return hasAttributeProperty(Kind, AttributeProperty::RetAttr);
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}
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//===----------------------------------------------------------------------===//
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// AttributeImpl Definition
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//===----------------------------------------------------------------------===//
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bool AttributeImpl::hasAttribute(Attribute::AttrKind A) const {
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if (isStringAttribute()) return false;
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return getKindAsEnum() == A;
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}
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bool AttributeImpl::hasAttribute(StringRef Kind) const {
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if (!isStringAttribute()) return false;
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return getKindAsString() == Kind;
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}
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Attribute::AttrKind AttributeImpl::getKindAsEnum() const {
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assert(isEnumAttribute() || isIntAttribute() || isTypeAttribute());
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return static_cast<const EnumAttributeImpl *>(this)->getEnumKind();
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}
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uint64_t AttributeImpl::getValueAsInt() const {
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assert(isIntAttribute());
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|
return static_cast<const IntAttributeImpl *>(this)->getValue();
|
|
}
|
|
|
|
bool AttributeImpl::getValueAsBool() const {
|
|
assert(getValueAsString().empty() || getValueAsString() == "false" || getValueAsString() == "true");
|
|
return getValueAsString() == "true";
|
|
}
|
|
|
|
StringRef AttributeImpl::getKindAsString() const {
|
|
assert(isStringAttribute());
|
|
return static_cast<const StringAttributeImpl *>(this)->getStringKind();
|
|
}
|
|
|
|
StringRef AttributeImpl::getValueAsString() const {
|
|
assert(isStringAttribute());
|
|
return static_cast<const StringAttributeImpl *>(this)->getStringValue();
|
|
}
|
|
|
|
Type *AttributeImpl::getValueAsType() const {
|
|
assert(isTypeAttribute());
|
|
return static_cast<const TypeAttributeImpl *>(this)->getTypeValue();
|
|
}
|
|
|
|
bool AttributeImpl::operator<(const AttributeImpl &AI) const {
|
|
if (this == &AI)
|
|
return false;
|
|
|
|
// This sorts the attributes with Attribute::AttrKinds coming first (sorted
|
|
// relative to their enum value) and then strings.
|
|
if (!isStringAttribute()) {
|
|
if (AI.isStringAttribute())
|
|
return true;
|
|
if (getKindAsEnum() != AI.getKindAsEnum())
|
|
return getKindAsEnum() < AI.getKindAsEnum();
|
|
assert(!AI.isEnumAttribute() && "Non-unique attribute");
|
|
assert(!AI.isTypeAttribute() && "Comparison of types would be unstable");
|
|
// TODO: Is this actually needed?
|
|
assert(AI.isIntAttribute() && "Only possibility left");
|
|
return getValueAsInt() < AI.getValueAsInt();
|
|
}
|
|
|
|
if (!AI.isStringAttribute())
|
|
return false;
|
|
if (getKindAsString() == AI.getKindAsString())
|
|
return getValueAsString() < AI.getValueAsString();
|
|
return getKindAsString() < AI.getKindAsString();
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// AttributeSet Definition
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
AttributeSet AttributeSet::get(LLVMContext &C, const AttrBuilder &B) {
|
|
return AttributeSet(AttributeSetNode::get(C, B));
|
|
}
|
|
|
|
AttributeSet AttributeSet::get(LLVMContext &C, ArrayRef<Attribute> Attrs) {
|
|
return AttributeSet(AttributeSetNode::get(C, Attrs));
|
|
}
|
|
|
|
AttributeSet AttributeSet::addAttribute(LLVMContext &C,
|
|
Attribute::AttrKind Kind) const {
|
|
if (hasAttribute(Kind)) return *this;
|
|
AttrBuilder B(C);
|
|
B.addAttribute(Kind);
|
|
return addAttributes(C, AttributeSet::get(C, B));
|
|
}
|
|
|
|
AttributeSet AttributeSet::addAttribute(LLVMContext &C, StringRef Kind,
|
|
StringRef Value) const {
|
|
AttrBuilder B(C);
|
|
B.addAttribute(Kind, Value);
|
|
return addAttributes(C, AttributeSet::get(C, B));
|
|
}
|
|
|
|
AttributeSet AttributeSet::addAttributes(LLVMContext &C,
|
|
const AttributeSet AS) const {
|
|
if (!hasAttributes())
|
|
return AS;
|
|
|
|
if (!AS.hasAttributes())
|
|
return *this;
|
|
|
|
AttrBuilder B(C, *this);
|
|
B.merge(AttrBuilder(C, AS));
|
|
return get(C, B);
|
|
}
|
|
|
|
AttributeSet AttributeSet::removeAttribute(LLVMContext &C,
|
|
Attribute::AttrKind Kind) const {
|
|
if (!hasAttribute(Kind)) return *this;
|
|
AttrBuilder B(C, *this);
|
|
B.removeAttribute(Kind);
|
|
return get(C, B);
|
|
}
|
|
|
|
AttributeSet AttributeSet::removeAttribute(LLVMContext &C,
|
|
StringRef Kind) const {
|
|
if (!hasAttribute(Kind)) return *this;
|
|
AttrBuilder B(C, *this);
|
|
B.removeAttribute(Kind);
|
|
return get(C, B);
|
|
}
|
|
|
|
AttributeSet AttributeSet::removeAttributes(LLVMContext &C,
|
|
const AttributeMask &Attrs) const {
|
|
AttrBuilder B(C, *this);
|
|
// If there is nothing to remove, directly return the original set.
|
|
if (!B.overlaps(Attrs))
|
|
return *this;
|
|
|
|
B.remove(Attrs);
|
|
return get(C, B);
|
|
}
|
|
|
|
unsigned AttributeSet::getNumAttributes() const {
|
|
return SetNode ? SetNode->getNumAttributes() : 0;
|
|
}
|
|
|
|
bool AttributeSet::hasAttribute(Attribute::AttrKind Kind) const {
|
|
return SetNode ? SetNode->hasAttribute(Kind) : false;
|
|
}
|
|
|
|
bool AttributeSet::hasAttribute(StringRef Kind) const {
|
|
return SetNode ? SetNode->hasAttribute(Kind) : false;
|
|
}
|
|
|
|
Attribute AttributeSet::getAttribute(Attribute::AttrKind Kind) const {
|
|
return SetNode ? SetNode->getAttribute(Kind) : Attribute();
|
|
}
|
|
|
|
Attribute AttributeSet::getAttribute(StringRef Kind) const {
|
|
return SetNode ? SetNode->getAttribute(Kind) : Attribute();
|
|
}
|
|
|
|
MaybeAlign AttributeSet::getAlignment() const {
|
|
return SetNode ? SetNode->getAlignment() : None;
|
|
}
|
|
|
|
MaybeAlign AttributeSet::getStackAlignment() const {
|
|
return SetNode ? SetNode->getStackAlignment() : None;
|
|
}
|
|
|
|
uint64_t AttributeSet::getDereferenceableBytes() const {
|
|
return SetNode ? SetNode->getDereferenceableBytes() : 0;
|
|
}
|
|
|
|
uint64_t AttributeSet::getDereferenceableOrNullBytes() const {
|
|
return SetNode ? SetNode->getDereferenceableOrNullBytes() : 0;
|
|
}
|
|
|
|
Type *AttributeSet::getByRefType() const {
|
|
return SetNode ? SetNode->getAttributeType(Attribute::ByRef) : nullptr;
|
|
}
|
|
|
|
Type *AttributeSet::getByValType() const {
|
|
return SetNode ? SetNode->getAttributeType(Attribute::ByVal) : nullptr;
|
|
}
|
|
|
|
Type *AttributeSet::getStructRetType() const {
|
|
return SetNode ? SetNode->getAttributeType(Attribute::StructRet) : nullptr;
|
|
}
|
|
|
|
Type *AttributeSet::getPreallocatedType() const {
|
|
return SetNode ? SetNode->getAttributeType(Attribute::Preallocated) : nullptr;
|
|
}
|
|
|
|
Type *AttributeSet::getInAllocaType() const {
|
|
return SetNode ? SetNode->getAttributeType(Attribute::InAlloca) : nullptr;
|
|
}
|
|
|
|
Type *AttributeSet::getElementType() const {
|
|
return SetNode ? SetNode->getAttributeType(Attribute::ElementType) : nullptr;
|
|
}
|
|
|
|
std::pair<unsigned, Optional<unsigned>> AttributeSet::getAllocSizeArgs() const {
|
|
return SetNode ? SetNode->getAllocSizeArgs()
|
|
: std::pair<unsigned, Optional<unsigned>>(0, 0);
|
|
}
|
|
|
|
unsigned AttributeSet::getVScaleRangeMin() const {
|
|
return SetNode ? SetNode->getVScaleRangeMin() : 1;
|
|
}
|
|
|
|
Optional<unsigned> AttributeSet::getVScaleRangeMax() const {
|
|
return SetNode ? SetNode->getVScaleRangeMax() : None;
|
|
}
|
|
|
|
std::string AttributeSet::getAsString(bool InAttrGrp) const {
|
|
return SetNode ? SetNode->getAsString(InAttrGrp) : "";
|
|
}
|
|
|
|
bool AttributeSet::hasParentContext(LLVMContext &C) const {
|
|
assert(hasAttributes() && "empty AttributeSet doesn't refer to any context");
|
|
FoldingSetNodeID ID;
|
|
SetNode->Profile(ID);
|
|
void *Unused;
|
|
return C.pImpl->AttrsSetNodes.FindNodeOrInsertPos(ID, Unused) == SetNode;
|
|
}
|
|
|
|
AttributeSet::iterator AttributeSet::begin() const {
|
|
return SetNode ? SetNode->begin() : nullptr;
|
|
}
|
|
|
|
AttributeSet::iterator AttributeSet::end() const {
|
|
return SetNode ? SetNode->end() : nullptr;
|
|
}
|
|
|
|
#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
|
|
LLVM_DUMP_METHOD void AttributeSet::dump() const {
|
|
dbgs() << "AS =\n";
|
|
dbgs() << " { ";
|
|
dbgs() << getAsString(true) << " }\n";
|
|
}
|
|
#endif
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// AttributeSetNode Definition
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
AttributeSetNode::AttributeSetNode(ArrayRef<Attribute> Attrs)
|
|
: NumAttrs(Attrs.size()) {
|
|
// There's memory after the node where we can store the entries in.
|
|
llvm::copy(Attrs, getTrailingObjects<Attribute>());
|
|
|
|
for (const auto &I : *this) {
|
|
if (I.isStringAttribute())
|
|
StringAttrs.insert({ I.getKindAsString(), I });
|
|
else
|
|
AvailableAttrs.addAttribute(I.getKindAsEnum());
|
|
}
|
|
}
|
|
|
|
AttributeSetNode *AttributeSetNode::get(LLVMContext &C,
|
|
ArrayRef<Attribute> Attrs) {
|
|
SmallVector<Attribute, 8> SortedAttrs(Attrs.begin(), Attrs.end());
|
|
llvm::sort(SortedAttrs);
|
|
return getSorted(C, SortedAttrs);
|
|
}
|
|
|
|
AttributeSetNode *AttributeSetNode::getSorted(LLVMContext &C,
|
|
ArrayRef<Attribute> SortedAttrs) {
|
|
if (SortedAttrs.empty())
|
|
return nullptr;
|
|
|
|
// Build a key to look up the existing attributes.
|
|
LLVMContextImpl *pImpl = C.pImpl;
|
|
FoldingSetNodeID ID;
|
|
|
|
assert(llvm::is_sorted(SortedAttrs) && "Expected sorted attributes!");
|
|
for (const auto &Attr : SortedAttrs)
|
|
Attr.Profile(ID);
|
|
|
|
void *InsertPoint;
|
|
AttributeSetNode *PA =
|
|
pImpl->AttrsSetNodes.FindNodeOrInsertPos(ID, InsertPoint);
|
|
|
|
// If we didn't find any existing attributes of the same shape then create a
|
|
// new one and insert it.
|
|
if (!PA) {
|
|
// Coallocate entries after the AttributeSetNode itself.
|
|
void *Mem = ::operator new(totalSizeToAlloc<Attribute>(SortedAttrs.size()));
|
|
PA = new (Mem) AttributeSetNode(SortedAttrs);
|
|
pImpl->AttrsSetNodes.InsertNode(PA, InsertPoint);
|
|
}
|
|
|
|
// Return the AttributeSetNode that we found or created.
|
|
return PA;
|
|
}
|
|
|
|
AttributeSetNode *AttributeSetNode::get(LLVMContext &C, const AttrBuilder &B) {
|
|
return getSorted(C, B.attrs());
|
|
}
|
|
|
|
bool AttributeSetNode::hasAttribute(StringRef Kind) const {
|
|
return StringAttrs.count(Kind);
|
|
}
|
|
|
|
Optional<Attribute>
|
|
AttributeSetNode::findEnumAttribute(Attribute::AttrKind Kind) const {
|
|
// Do a quick presence check.
|
|
if (!hasAttribute(Kind))
|
|
return None;
|
|
|
|
// Attributes in a set are sorted by enum value, followed by string
|
|
// attributes. Binary search the one we want.
|
|
const Attribute *I =
|
|
std::lower_bound(begin(), end() - StringAttrs.size(), Kind,
|
|
[](Attribute A, Attribute::AttrKind Kind) {
|
|
return A.getKindAsEnum() < Kind;
|
|
});
|
|
assert(I != end() && I->hasAttribute(Kind) && "Presence check failed?");
|
|
return *I;
|
|
}
|
|
|
|
Attribute AttributeSetNode::getAttribute(Attribute::AttrKind Kind) const {
|
|
if (auto A = findEnumAttribute(Kind))
|
|
return *A;
|
|
return {};
|
|
}
|
|
|
|
Attribute AttributeSetNode::getAttribute(StringRef Kind) const {
|
|
return StringAttrs.lookup(Kind);
|
|
}
|
|
|
|
MaybeAlign AttributeSetNode::getAlignment() const {
|
|
if (auto A = findEnumAttribute(Attribute::Alignment))
|
|
return A->getAlignment();
|
|
return None;
|
|
}
|
|
|
|
MaybeAlign AttributeSetNode::getStackAlignment() const {
|
|
if (auto A = findEnumAttribute(Attribute::StackAlignment))
|
|
return A->getStackAlignment();
|
|
return None;
|
|
}
|
|
|
|
Type *AttributeSetNode::getAttributeType(Attribute::AttrKind Kind) const {
|
|
if (auto A = findEnumAttribute(Kind))
|
|
return A->getValueAsType();
|
|
return nullptr;
|
|
}
|
|
|
|
uint64_t AttributeSetNode::getDereferenceableBytes() const {
|
|
if (auto A = findEnumAttribute(Attribute::Dereferenceable))
|
|
return A->getDereferenceableBytes();
|
|
return 0;
|
|
}
|
|
|
|
uint64_t AttributeSetNode::getDereferenceableOrNullBytes() const {
|
|
if (auto A = findEnumAttribute(Attribute::DereferenceableOrNull))
|
|
return A->getDereferenceableOrNullBytes();
|
|
return 0;
|
|
}
|
|
|
|
std::pair<unsigned, Optional<unsigned>>
|
|
AttributeSetNode::getAllocSizeArgs() const {
|
|
if (auto A = findEnumAttribute(Attribute::AllocSize))
|
|
return A->getAllocSizeArgs();
|
|
return std::make_pair(0, 0);
|
|
}
|
|
|
|
unsigned AttributeSetNode::getVScaleRangeMin() const {
|
|
if (auto A = findEnumAttribute(Attribute::VScaleRange))
|
|
return A->getVScaleRangeMin();
|
|
return 1;
|
|
}
|
|
|
|
Optional<unsigned> AttributeSetNode::getVScaleRangeMax() const {
|
|
if (auto A = findEnumAttribute(Attribute::VScaleRange))
|
|
return A->getVScaleRangeMax();
|
|
return None;
|
|
}
|
|
|
|
std::string AttributeSetNode::getAsString(bool InAttrGrp) const {
|
|
std::string Str;
|
|
for (iterator I = begin(), E = end(); I != E; ++I) {
|
|
if (I != begin())
|
|
Str += ' ';
|
|
Str += I->getAsString(InAttrGrp);
|
|
}
|
|
return Str;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// AttributeListImpl Definition
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// Map from AttributeList index to the internal array index. Adding one happens
|
|
/// to work, because -1 wraps around to 0.
|
|
static unsigned attrIdxToArrayIdx(unsigned Index) {
|
|
return Index + 1;
|
|
}
|
|
|
|
AttributeListImpl::AttributeListImpl(ArrayRef<AttributeSet> Sets)
|
|
: NumAttrSets(Sets.size()) {
|
|
assert(!Sets.empty() && "pointless AttributeListImpl");
|
|
|
|
// There's memory after the node where we can store the entries in.
|
|
llvm::copy(Sets, getTrailingObjects<AttributeSet>());
|
|
|
|
// Initialize AvailableFunctionAttrs and AvailableSomewhereAttrs
|
|
// summary bitsets.
|
|
for (const auto &I : Sets[attrIdxToArrayIdx(AttributeList::FunctionIndex)])
|
|
if (!I.isStringAttribute())
|
|
AvailableFunctionAttrs.addAttribute(I.getKindAsEnum());
|
|
|
|
for (const auto &Set : Sets)
|
|
for (const auto &I : Set)
|
|
if (!I.isStringAttribute())
|
|
AvailableSomewhereAttrs.addAttribute(I.getKindAsEnum());
|
|
}
|
|
|
|
void AttributeListImpl::Profile(FoldingSetNodeID &ID) const {
|
|
Profile(ID, makeArrayRef(begin(), end()));
|
|
}
|
|
|
|
void AttributeListImpl::Profile(FoldingSetNodeID &ID,
|
|
ArrayRef<AttributeSet> Sets) {
|
|
for (const auto &Set : Sets)
|
|
ID.AddPointer(Set.SetNode);
|
|
}
|
|
|
|
bool AttributeListImpl::hasAttrSomewhere(Attribute::AttrKind Kind,
|
|
unsigned *Index) const {
|
|
if (!AvailableSomewhereAttrs.hasAttribute(Kind))
|
|
return false;
|
|
|
|
if (Index) {
|
|
for (unsigned I = 0, E = NumAttrSets; I != E; ++I) {
|
|
if (begin()[I].hasAttribute(Kind)) {
|
|
*Index = I - 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
|
|
LLVM_DUMP_METHOD void AttributeListImpl::dump() const {
|
|
AttributeList(const_cast<AttributeListImpl *>(this)).dump();
|
|
}
|
|
#endif
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// AttributeList Construction and Mutation Methods
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
AttributeList AttributeList::getImpl(LLVMContext &C,
|
|
ArrayRef<AttributeSet> AttrSets) {
|
|
assert(!AttrSets.empty() && "pointless AttributeListImpl");
|
|
|
|
LLVMContextImpl *pImpl = C.pImpl;
|
|
FoldingSetNodeID ID;
|
|
AttributeListImpl::Profile(ID, AttrSets);
|
|
|
|
void *InsertPoint;
|
|
AttributeListImpl *PA =
|
|
pImpl->AttrsLists.FindNodeOrInsertPos(ID, InsertPoint);
|
|
|
|
// If we didn't find any existing attributes of the same shape then
|
|
// create a new one and insert it.
|
|
if (!PA) {
|
|
// Coallocate entries after the AttributeListImpl itself.
|
|
void *Mem = pImpl->Alloc.Allocate(
|
|
AttributeListImpl::totalSizeToAlloc<AttributeSet>(AttrSets.size()),
|
|
alignof(AttributeListImpl));
|
|
PA = new (Mem) AttributeListImpl(AttrSets);
|
|
pImpl->AttrsLists.InsertNode(PA, InsertPoint);
|
|
}
|
|
|
|
// Return the AttributesList that we found or created.
|
|
return AttributeList(PA);
|
|
}
|
|
|
|
AttributeList
|
|
AttributeList::get(LLVMContext &C,
|
|
ArrayRef<std::pair<unsigned, Attribute>> Attrs) {
|
|
// If there are no attributes then return a null AttributesList pointer.
|
|
if (Attrs.empty())
|
|
return {};
|
|
|
|
assert(llvm::is_sorted(Attrs,
|
|
[](const std::pair<unsigned, Attribute> &LHS,
|
|
const std::pair<unsigned, Attribute> &RHS) {
|
|
return LHS.first < RHS.first;
|
|
}) &&
|
|
"Misordered Attributes list!");
|
|
assert(llvm::all_of(Attrs,
|
|
[](const std::pair<unsigned, Attribute> &Pair) {
|
|
return Pair.second.isValid();
|
|
}) &&
|
|
"Pointless attribute!");
|
|
|
|
// Create a vector if (unsigned, AttributeSetNode*) pairs from the attributes
|
|
// list.
|
|
SmallVector<std::pair<unsigned, AttributeSet>, 8> AttrPairVec;
|
|
for (ArrayRef<std::pair<unsigned, Attribute>>::iterator I = Attrs.begin(),
|
|
E = Attrs.end(); I != E; ) {
|
|
unsigned Index = I->first;
|
|
SmallVector<Attribute, 4> AttrVec;
|
|
while (I != E && I->first == Index) {
|
|
AttrVec.push_back(I->second);
|
|
++I;
|
|
}
|
|
|
|
AttrPairVec.emplace_back(Index, AttributeSet::get(C, AttrVec));
|
|
}
|
|
|
|
return get(C, AttrPairVec);
|
|
}
|
|
|
|
AttributeList
|
|
AttributeList::get(LLVMContext &C,
|
|
ArrayRef<std::pair<unsigned, AttributeSet>> Attrs) {
|
|
// If there are no attributes then return a null AttributesList pointer.
|
|
if (Attrs.empty())
|
|
return {};
|
|
|
|
assert(llvm::is_sorted(Attrs,
|
|
[](const std::pair<unsigned, AttributeSet> &LHS,
|
|
const std::pair<unsigned, AttributeSet> &RHS) {
|
|
return LHS.first < RHS.first;
|
|
}) &&
|
|
"Misordered Attributes list!");
|
|
assert(llvm::none_of(Attrs,
|
|
[](const std::pair<unsigned, AttributeSet> &Pair) {
|
|
return !Pair.second.hasAttributes();
|
|
}) &&
|
|
"Pointless attribute!");
|
|
|
|
unsigned MaxIndex = Attrs.back().first;
|
|
// If the MaxIndex is FunctionIndex and there are other indices in front
|
|
// of it, we need to use the largest of those to get the right size.
|
|
if (MaxIndex == FunctionIndex && Attrs.size() > 1)
|
|
MaxIndex = Attrs[Attrs.size() - 2].first;
|
|
|
|
SmallVector<AttributeSet, 4> AttrVec(attrIdxToArrayIdx(MaxIndex) + 1);
|
|
for (const auto &Pair : Attrs)
|
|
AttrVec[attrIdxToArrayIdx(Pair.first)] = Pair.second;
|
|
|
|
return getImpl(C, AttrVec);
|
|
}
|
|
|
|
AttributeList AttributeList::get(LLVMContext &C, AttributeSet FnAttrs,
|
|
AttributeSet RetAttrs,
|
|
ArrayRef<AttributeSet> ArgAttrs) {
|
|
// Scan from the end to find the last argument with attributes. Most
|
|
// arguments don't have attributes, so it's nice if we can have fewer unique
|
|
// AttributeListImpls by dropping empty attribute sets at the end of the list.
|
|
unsigned NumSets = 0;
|
|
for (size_t I = ArgAttrs.size(); I != 0; --I) {
|
|
if (ArgAttrs[I - 1].hasAttributes()) {
|
|
NumSets = I + 2;
|
|
break;
|
|
}
|
|
}
|
|
if (NumSets == 0) {
|
|
// Check function and return attributes if we didn't have argument
|
|
// attributes.
|
|
if (RetAttrs.hasAttributes())
|
|
NumSets = 2;
|
|
else if (FnAttrs.hasAttributes())
|
|
NumSets = 1;
|
|
}
|
|
|
|
// If all attribute sets were empty, we can use the empty attribute list.
|
|
if (NumSets == 0)
|
|
return {};
|
|
|
|
SmallVector<AttributeSet, 8> AttrSets;
|
|
AttrSets.reserve(NumSets);
|
|
// If we have any attributes, we always have function attributes.
|
|
AttrSets.push_back(FnAttrs);
|
|
if (NumSets > 1)
|
|
AttrSets.push_back(RetAttrs);
|
|
if (NumSets > 2) {
|
|
// Drop the empty argument attribute sets at the end.
|
|
ArgAttrs = ArgAttrs.take_front(NumSets - 2);
|
|
llvm::append_range(AttrSets, ArgAttrs);
|
|
}
|
|
|
|
return getImpl(C, AttrSets);
|
|
}
|
|
|
|
AttributeList AttributeList::get(LLVMContext &C, unsigned Index,
|
|
AttributeSet Attrs) {
|
|
if (!Attrs.hasAttributes())
|
|
return {};
|
|
Index = attrIdxToArrayIdx(Index);
|
|
SmallVector<AttributeSet, 8> AttrSets(Index + 1);
|
|
AttrSets[Index] = Attrs;
|
|
return getImpl(C, AttrSets);
|
|
}
|
|
|
|
AttributeList AttributeList::get(LLVMContext &C, unsigned Index,
|
|
const AttrBuilder &B) {
|
|
return get(C, Index, AttributeSet::get(C, B));
|
|
}
|
|
|
|
AttributeList AttributeList::get(LLVMContext &C, unsigned Index,
|
|
ArrayRef<Attribute::AttrKind> Kinds) {
|
|
SmallVector<std::pair<unsigned, Attribute>, 8> Attrs;
|
|
for (const auto K : Kinds)
|
|
Attrs.emplace_back(Index, Attribute::get(C, K));
|
|
return get(C, Attrs);
|
|
}
|
|
|
|
AttributeList AttributeList::get(LLVMContext &C, unsigned Index,
|
|
ArrayRef<Attribute::AttrKind> Kinds,
|
|
ArrayRef<uint64_t> Values) {
|
|
assert(Kinds.size() == Values.size() && "Mismatched attribute values.");
|
|
SmallVector<std::pair<unsigned, Attribute>, 8> Attrs;
|
|
auto VI = Values.begin();
|
|
for (const auto K : Kinds)
|
|
Attrs.emplace_back(Index, Attribute::get(C, K, *VI++));
|
|
return get(C, Attrs);
|
|
}
|
|
|
|
AttributeList AttributeList::get(LLVMContext &C, unsigned Index,
|
|
ArrayRef<StringRef> Kinds) {
|
|
SmallVector<std::pair<unsigned, Attribute>, 8> Attrs;
|
|
for (const auto &K : Kinds)
|
|
Attrs.emplace_back(Index, Attribute::get(C, K));
|
|
return get(C, Attrs);
|
|
}
|
|
|
|
AttributeList AttributeList::get(LLVMContext &C,
|
|
ArrayRef<AttributeList> Attrs) {
|
|
if (Attrs.empty())
|
|
return {};
|
|
if (Attrs.size() == 1)
|
|
return Attrs[0];
|
|
|
|
unsigned MaxSize = 0;
|
|
for (const auto &List : Attrs)
|
|
MaxSize = std::max(MaxSize, List.getNumAttrSets());
|
|
|
|
// If every list was empty, there is no point in merging the lists.
|
|
if (MaxSize == 0)
|
|
return {};
|
|
|
|
SmallVector<AttributeSet, 8> NewAttrSets(MaxSize);
|
|
for (unsigned I = 0; I < MaxSize; ++I) {
|
|
AttrBuilder CurBuilder(C);
|
|
for (const auto &List : Attrs)
|
|
CurBuilder.merge(AttrBuilder(C, List.getAttributes(I - 1)));
|
|
NewAttrSets[I] = AttributeSet::get(C, CurBuilder);
|
|
}
|
|
|
|
return getImpl(C, NewAttrSets);
|
|
}
|
|
|
|
AttributeList
|
|
AttributeList::addAttributeAtIndex(LLVMContext &C, unsigned Index,
|
|
Attribute::AttrKind Kind) const {
|
|
if (hasAttributeAtIndex(Index, Kind))
|
|
return *this;
|
|
AttributeSet Attrs = getAttributes(Index);
|
|
// TODO: Insert at correct position and avoid sort.
|
|
SmallVector<Attribute, 8> NewAttrs(Attrs.begin(), Attrs.end());
|
|
NewAttrs.push_back(Attribute::get(C, Kind));
|
|
return setAttributesAtIndex(C, Index, AttributeSet::get(C, NewAttrs));
|
|
}
|
|
|
|
AttributeList AttributeList::addAttributeAtIndex(LLVMContext &C, unsigned Index,
|
|
StringRef Kind,
|
|
StringRef Value) const {
|
|
AttrBuilder B(C);
|
|
B.addAttribute(Kind, Value);
|
|
return addAttributesAtIndex(C, Index, B);
|
|
}
|
|
|
|
AttributeList AttributeList::addAttributeAtIndex(LLVMContext &C, unsigned Index,
|
|
Attribute A) const {
|
|
AttrBuilder B(C);
|
|
B.addAttribute(A);
|
|
return addAttributesAtIndex(C, Index, B);
|
|
}
|
|
|
|
AttributeList AttributeList::setAttributesAtIndex(LLVMContext &C,
|
|
unsigned Index,
|
|
AttributeSet Attrs) const {
|
|
Index = attrIdxToArrayIdx(Index);
|
|
SmallVector<AttributeSet, 4> AttrSets(this->begin(), this->end());
|
|
if (Index >= AttrSets.size())
|
|
AttrSets.resize(Index + 1);
|
|
AttrSets[Index] = Attrs;
|
|
return AttributeList::getImpl(C, AttrSets);
|
|
}
|
|
|
|
AttributeList AttributeList::addAttributesAtIndex(LLVMContext &C,
|
|
unsigned Index,
|
|
const AttrBuilder &B) const {
|
|
if (!B.hasAttributes())
|
|
return *this;
|
|
|
|
if (!pImpl)
|
|
return AttributeList::get(C, {{Index, AttributeSet::get(C, B)}});
|
|
|
|
AttrBuilder Merged(C, getAttributes(Index));
|
|
Merged.merge(B);
|
|
return setAttributesAtIndex(C, Index, AttributeSet::get(C, Merged));
|
|
}
|
|
|
|
AttributeList AttributeList::addParamAttribute(LLVMContext &C,
|
|
ArrayRef<unsigned> ArgNos,
|
|
Attribute A) const {
|
|
assert(llvm::is_sorted(ArgNos));
|
|
|
|
SmallVector<AttributeSet, 4> AttrSets(this->begin(), this->end());
|
|
unsigned MaxIndex = attrIdxToArrayIdx(ArgNos.back() + FirstArgIndex);
|
|
if (MaxIndex >= AttrSets.size())
|
|
AttrSets.resize(MaxIndex + 1);
|
|
|
|
for (unsigned ArgNo : ArgNos) {
|
|
unsigned Index = attrIdxToArrayIdx(ArgNo + FirstArgIndex);
|
|
AttrBuilder B(C, AttrSets[Index]);
|
|
B.addAttribute(A);
|
|
AttrSets[Index] = AttributeSet::get(C, B);
|
|
}
|
|
|
|
return getImpl(C, AttrSets);
|
|
}
|
|
|
|
AttributeList
|
|
AttributeList::removeAttributeAtIndex(LLVMContext &C, unsigned Index,
|
|
Attribute::AttrKind Kind) const {
|
|
if (!hasAttributeAtIndex(Index, Kind))
|
|
return *this;
|
|
|
|
Index = attrIdxToArrayIdx(Index);
|
|
SmallVector<AttributeSet, 4> AttrSets(this->begin(), this->end());
|
|
assert(Index < AttrSets.size());
|
|
|
|
AttrSets[Index] = AttrSets[Index].removeAttribute(C, Kind);
|
|
|
|
return getImpl(C, AttrSets);
|
|
}
|
|
|
|
AttributeList AttributeList::removeAttributeAtIndex(LLVMContext &C,
|
|
unsigned Index,
|
|
StringRef Kind) const {
|
|
if (!hasAttributeAtIndex(Index, Kind))
|
|
return *this;
|
|
|
|
Index = attrIdxToArrayIdx(Index);
|
|
SmallVector<AttributeSet, 4> AttrSets(this->begin(), this->end());
|
|
assert(Index < AttrSets.size());
|
|
|
|
AttrSets[Index] = AttrSets[Index].removeAttribute(C, Kind);
|
|
|
|
return getImpl(C, AttrSets);
|
|
}
|
|
|
|
AttributeList AttributeList::removeAttributesAtIndex(
|
|
LLVMContext &C, unsigned Index, const AttributeMask &AttrsToRemove) const {
|
|
AttributeSet Attrs = getAttributes(Index);
|
|
AttributeSet NewAttrs = Attrs.removeAttributes(C, AttrsToRemove);
|
|
// If nothing was removed, return the original list.
|
|
if (Attrs == NewAttrs)
|
|
return *this;
|
|
return setAttributesAtIndex(C, Index, NewAttrs);
|
|
}
|
|
|
|
AttributeList
|
|
AttributeList::removeAttributesAtIndex(LLVMContext &C,
|
|
unsigned WithoutIndex) const {
|
|
if (!pImpl)
|
|
return {};
|
|
WithoutIndex = attrIdxToArrayIdx(WithoutIndex);
|
|
if (WithoutIndex >= getNumAttrSets())
|
|
return *this;
|
|
SmallVector<AttributeSet, 4> AttrSets(this->begin(), this->end());
|
|
AttrSets[WithoutIndex] = AttributeSet();
|
|
return getImpl(C, AttrSets);
|
|
}
|
|
|
|
AttributeList AttributeList::addDereferenceableRetAttr(LLVMContext &C,
|
|
uint64_t Bytes) const {
|
|
AttrBuilder B(C);
|
|
B.addDereferenceableAttr(Bytes);
|
|
return addRetAttributes(C, B);
|
|
}
|
|
|
|
AttributeList AttributeList::addDereferenceableParamAttr(LLVMContext &C,
|
|
unsigned Index,
|
|
uint64_t Bytes) const {
|
|
AttrBuilder B(C);
|
|
B.addDereferenceableAttr(Bytes);
|
|
return addParamAttributes(C, Index, B);
|
|
}
|
|
|
|
AttributeList
|
|
AttributeList::addDereferenceableOrNullParamAttr(LLVMContext &C, unsigned Index,
|
|
uint64_t Bytes) const {
|
|
AttrBuilder B(C);
|
|
B.addDereferenceableOrNullAttr(Bytes);
|
|
return addParamAttributes(C, Index, B);
|
|
}
|
|
|
|
AttributeList
|
|
AttributeList::addAllocSizeParamAttr(LLVMContext &C, unsigned Index,
|
|
unsigned ElemSizeArg,
|
|
const Optional<unsigned> &NumElemsArg) {
|
|
AttrBuilder B(C);
|
|
B.addAllocSizeAttr(ElemSizeArg, NumElemsArg);
|
|
return addParamAttributes(C, Index, B);
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// AttributeList Accessor Methods
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
AttributeSet AttributeList::getParamAttrs(unsigned ArgNo) const {
|
|
return getAttributes(ArgNo + FirstArgIndex);
|
|
}
|
|
|
|
AttributeSet AttributeList::getRetAttrs() const {
|
|
return getAttributes(ReturnIndex);
|
|
}
|
|
|
|
AttributeSet AttributeList::getFnAttrs() const {
|
|
return getAttributes(FunctionIndex);
|
|
}
|
|
|
|
bool AttributeList::hasAttributeAtIndex(unsigned Index,
|
|
Attribute::AttrKind Kind) const {
|
|
return getAttributes(Index).hasAttribute(Kind);
|
|
}
|
|
|
|
bool AttributeList::hasAttributeAtIndex(unsigned Index, StringRef Kind) const {
|
|
return getAttributes(Index).hasAttribute(Kind);
|
|
}
|
|
|
|
bool AttributeList::hasAttributesAtIndex(unsigned Index) const {
|
|
return getAttributes(Index).hasAttributes();
|
|
}
|
|
|
|
bool AttributeList::hasFnAttr(Attribute::AttrKind Kind) const {
|
|
return pImpl && pImpl->hasFnAttribute(Kind);
|
|
}
|
|
|
|
bool AttributeList::hasFnAttr(StringRef Kind) const {
|
|
return hasAttributeAtIndex(AttributeList::FunctionIndex, Kind);
|
|
}
|
|
|
|
bool AttributeList::hasAttrSomewhere(Attribute::AttrKind Attr,
|
|
unsigned *Index) const {
|
|
return pImpl && pImpl->hasAttrSomewhere(Attr, Index);
|
|
}
|
|
|
|
Attribute AttributeList::getAttributeAtIndex(unsigned Index,
|
|
Attribute::AttrKind Kind) const {
|
|
return getAttributes(Index).getAttribute(Kind);
|
|
}
|
|
|
|
Attribute AttributeList::getAttributeAtIndex(unsigned Index,
|
|
StringRef Kind) const {
|
|
return getAttributes(Index).getAttribute(Kind);
|
|
}
|
|
|
|
MaybeAlign AttributeList::getRetAlignment() const {
|
|
return getAttributes(ReturnIndex).getAlignment();
|
|
}
|
|
|
|
MaybeAlign AttributeList::getParamAlignment(unsigned ArgNo) const {
|
|
return getAttributes(ArgNo + FirstArgIndex).getAlignment();
|
|
}
|
|
|
|
MaybeAlign AttributeList::getParamStackAlignment(unsigned ArgNo) const {
|
|
return getAttributes(ArgNo + FirstArgIndex).getStackAlignment();
|
|
}
|
|
|
|
Type *AttributeList::getParamByValType(unsigned Index) const {
|
|
return getAttributes(Index+FirstArgIndex).getByValType();
|
|
}
|
|
|
|
Type *AttributeList::getParamStructRetType(unsigned Index) const {
|
|
return getAttributes(Index + FirstArgIndex).getStructRetType();
|
|
}
|
|
|
|
Type *AttributeList::getParamByRefType(unsigned Index) const {
|
|
return getAttributes(Index + FirstArgIndex).getByRefType();
|
|
}
|
|
|
|
Type *AttributeList::getParamPreallocatedType(unsigned Index) const {
|
|
return getAttributes(Index + FirstArgIndex).getPreallocatedType();
|
|
}
|
|
|
|
Type *AttributeList::getParamInAllocaType(unsigned Index) const {
|
|
return getAttributes(Index + FirstArgIndex).getInAllocaType();
|
|
}
|
|
|
|
Type *AttributeList::getParamElementType(unsigned Index) const {
|
|
return getAttributes(Index + FirstArgIndex).getElementType();
|
|
}
|
|
|
|
MaybeAlign AttributeList::getFnStackAlignment() const {
|
|
return getFnAttrs().getStackAlignment();
|
|
}
|
|
|
|
MaybeAlign AttributeList::getRetStackAlignment() const {
|
|
return getRetAttrs().getStackAlignment();
|
|
}
|
|
|
|
uint64_t AttributeList::getRetDereferenceableBytes() const {
|
|
return getRetAttrs().getDereferenceableBytes();
|
|
}
|
|
|
|
uint64_t AttributeList::getParamDereferenceableBytes(unsigned Index) const {
|
|
return getParamAttrs(Index).getDereferenceableBytes();
|
|
}
|
|
|
|
uint64_t AttributeList::getRetDereferenceableOrNullBytes() const {
|
|
return getRetAttrs().getDereferenceableOrNullBytes();
|
|
}
|
|
|
|
uint64_t
|
|
AttributeList::getParamDereferenceableOrNullBytes(unsigned Index) const {
|
|
return getParamAttrs(Index).getDereferenceableOrNullBytes();
|
|
}
|
|
|
|
std::string AttributeList::getAsString(unsigned Index, bool InAttrGrp) const {
|
|
return getAttributes(Index).getAsString(InAttrGrp);
|
|
}
|
|
|
|
AttributeSet AttributeList::getAttributes(unsigned Index) const {
|
|
Index = attrIdxToArrayIdx(Index);
|
|
if (!pImpl || Index >= getNumAttrSets())
|
|
return {};
|
|
return pImpl->begin()[Index];
|
|
}
|
|
|
|
bool AttributeList::hasParentContext(LLVMContext &C) const {
|
|
assert(!isEmpty() && "an empty attribute list has no parent context");
|
|
FoldingSetNodeID ID;
|
|
pImpl->Profile(ID);
|
|
void *Unused;
|
|
return C.pImpl->AttrsLists.FindNodeOrInsertPos(ID, Unused) == pImpl;
|
|
}
|
|
|
|
AttributeList::iterator AttributeList::begin() const {
|
|
return pImpl ? pImpl->begin() : nullptr;
|
|
}
|
|
|
|
AttributeList::iterator AttributeList::end() const {
|
|
return pImpl ? pImpl->end() : nullptr;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// AttributeList Introspection Methods
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
unsigned AttributeList::getNumAttrSets() const {
|
|
return pImpl ? pImpl->NumAttrSets : 0;
|
|
}
|
|
|
|
void AttributeList::print(raw_ostream &O) const {
|
|
O << "AttributeList[\n";
|
|
|
|
for (unsigned i : indexes()) {
|
|
if (!getAttributes(i).hasAttributes())
|
|
continue;
|
|
O << " { ";
|
|
switch (i) {
|
|
case AttrIndex::ReturnIndex:
|
|
O << "return";
|
|
break;
|
|
case AttrIndex::FunctionIndex:
|
|
O << "function";
|
|
break;
|
|
default:
|
|
O << "arg(" << i - AttrIndex::FirstArgIndex << ")";
|
|
}
|
|
O << " => " << getAsString(i) << " }\n";
|
|
}
|
|
|
|
O << "]\n";
|
|
}
|
|
|
|
#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
|
|
LLVM_DUMP_METHOD void AttributeList::dump() const { print(dbgs()); }
|
|
#endif
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// AttrBuilder Method Implementations
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
AttrBuilder::AttrBuilder(LLVMContext &Ctx, AttributeSet AS) : Ctx(Ctx) {
|
|
append_range(Attrs, AS);
|
|
assert(is_sorted(Attrs) && "AttributeSet should be sorted");
|
|
}
|
|
|
|
void AttrBuilder::clear() { Attrs.clear(); }
|
|
|
|
/// Attribute comparator that only compares attribute keys. Enum attributes are
|
|
/// sorted before string attributes.
|
|
struct AttributeComparator {
|
|
bool operator()(Attribute A0, Attribute A1) const {
|
|
bool A0IsString = A0.isStringAttribute();
|
|
bool A1IsString = A1.isStringAttribute();
|
|
if (A0IsString) {
|
|
if (A1IsString)
|
|
return A0.getKindAsString() < A1.getKindAsString();
|
|
else
|
|
return false;
|
|
}
|
|
if (A1IsString)
|
|
return true;
|
|
return A0.getKindAsEnum() < A1.getKindAsEnum();
|
|
}
|
|
bool operator()(Attribute A0, Attribute::AttrKind Kind) const {
|
|
if (A0.isStringAttribute())
|
|
return false;
|
|
return A0.getKindAsEnum() < Kind;
|
|
}
|
|
bool operator()(Attribute A0, StringRef Kind) const {
|
|
if (A0.isStringAttribute())
|
|
return A0.getKindAsString() < Kind;
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template <typename K>
|
|
static void addAttributeImpl(SmallVectorImpl<Attribute> &Attrs, K Kind,
|
|
Attribute Attr) {
|
|
auto It = lower_bound(Attrs, Kind, AttributeComparator());
|
|
if (It != Attrs.end() && It->hasAttribute(Kind))
|
|
std::swap(*It, Attr);
|
|
else
|
|
Attrs.insert(It, Attr);
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::addAttribute(Attribute Attr) {
|
|
if (Attr.isStringAttribute())
|
|
addAttributeImpl(Attrs, Attr.getKindAsString(), Attr);
|
|
else
|
|
addAttributeImpl(Attrs, Attr.getKindAsEnum(), Attr);
|
|
return *this;
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::addAttribute(Attribute::AttrKind Kind) {
|
|
addAttributeImpl(Attrs, Kind, Attribute::get(Ctx, Kind));
|
|
return *this;
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::addAttribute(StringRef A, StringRef V) {
|
|
addAttributeImpl(Attrs, A, Attribute::get(Ctx, A, V));
|
|
return *this;
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::removeAttribute(Attribute::AttrKind Val) {
|
|
assert((unsigned)Val < Attribute::EndAttrKinds && "Attribute out of range!");
|
|
auto It = lower_bound(Attrs, Val, AttributeComparator());
|
|
if (It != Attrs.end() && It->hasAttribute(Val))
|
|
Attrs.erase(It);
|
|
return *this;
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::removeAttribute(StringRef A) {
|
|
auto It = lower_bound(Attrs, A, AttributeComparator());
|
|
if (It != Attrs.end() && It->hasAttribute(A))
|
|
Attrs.erase(It);
|
|
return *this;
|
|
}
|
|
|
|
uint64_t AttrBuilder::getRawIntAttr(Attribute::AttrKind Kind) const {
|
|
assert(Attribute::isIntAttrKind(Kind) && "Not an int attribute");
|
|
Attribute A = getAttribute(Kind);
|
|
return A.isValid() ? A.getValueAsInt() : 0;
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::addRawIntAttr(Attribute::AttrKind Kind,
|
|
uint64_t Value) {
|
|
return addAttribute(Attribute::get(Ctx, Kind, Value));
|
|
}
|
|
|
|
std::pair<unsigned, Optional<unsigned>> AttrBuilder::getAllocSizeArgs() const {
|
|
return unpackAllocSizeArgs(getRawIntAttr(Attribute::AllocSize));
|
|
}
|
|
|
|
unsigned AttrBuilder::getVScaleRangeMin() const {
|
|
return unpackVScaleRangeArgs(getRawIntAttr(Attribute::VScaleRange)).first;
|
|
}
|
|
|
|
Optional<unsigned> AttrBuilder::getVScaleRangeMax() const {
|
|
return unpackVScaleRangeArgs(getRawIntAttr(Attribute::VScaleRange)).second;
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::addAlignmentAttr(MaybeAlign Align) {
|
|
if (!Align)
|
|
return *this;
|
|
|
|
assert(*Align <= llvm::Value::MaximumAlignment && "Alignment too large.");
|
|
return addRawIntAttr(Attribute::Alignment, Align->value());
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::addStackAlignmentAttr(MaybeAlign Align) {
|
|
// Default alignment, allow the target to define how to align it.
|
|
if (!Align)
|
|
return *this;
|
|
|
|
assert(*Align <= 0x100 && "Alignment too large.");
|
|
return addRawIntAttr(Attribute::StackAlignment, Align->value());
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::addDereferenceableAttr(uint64_t Bytes) {
|
|
if (Bytes == 0) return *this;
|
|
|
|
return addRawIntAttr(Attribute::Dereferenceable, Bytes);
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::addDereferenceableOrNullAttr(uint64_t Bytes) {
|
|
if (Bytes == 0)
|
|
return *this;
|
|
|
|
return addRawIntAttr(Attribute::DereferenceableOrNull, Bytes);
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::addAllocSizeAttr(unsigned ElemSize,
|
|
const Optional<unsigned> &NumElems) {
|
|
return addAllocSizeAttrFromRawRepr(packAllocSizeArgs(ElemSize, NumElems));
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::addAllocSizeAttrFromRawRepr(uint64_t RawArgs) {
|
|
// (0, 0) is our "not present" value, so we need to check for it here.
|
|
assert(RawArgs && "Invalid allocsize arguments -- given allocsize(0, 0)");
|
|
return addRawIntAttr(Attribute::AllocSize, RawArgs);
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::addVScaleRangeAttr(unsigned MinValue,
|
|
Optional<unsigned> MaxValue) {
|
|
return addVScaleRangeAttrFromRawRepr(packVScaleRangeArgs(MinValue, MaxValue));
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::addVScaleRangeAttrFromRawRepr(uint64_t RawArgs) {
|
|
// (0, 0) is not present hence ignore this case
|
|
if (RawArgs == 0)
|
|
return *this;
|
|
|
|
return addRawIntAttr(Attribute::VScaleRange, RawArgs);
|
|
}
|
|
|
|
Type *AttrBuilder::getTypeAttr(Attribute::AttrKind Kind) const {
|
|
assert(Attribute::isTypeAttrKind(Kind) && "Not a type attribute");
|
|
Attribute A = getAttribute(Kind);
|
|
return A.isValid() ? A.getValueAsType() : nullptr;
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::addTypeAttr(Attribute::AttrKind Kind, Type *Ty) {
|
|
return addAttribute(Attribute::get(Ctx, Kind, Ty));
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::addByValAttr(Type *Ty) {
|
|
return addTypeAttr(Attribute::ByVal, Ty);
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::addStructRetAttr(Type *Ty) {
|
|
return addTypeAttr(Attribute::StructRet, Ty);
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::addByRefAttr(Type *Ty) {
|
|
return addTypeAttr(Attribute::ByRef, Ty);
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::addPreallocatedAttr(Type *Ty) {
|
|
return addTypeAttr(Attribute::Preallocated, Ty);
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::addInAllocaAttr(Type *Ty) {
|
|
return addTypeAttr(Attribute::InAlloca, Ty);
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::merge(const AttrBuilder &B) {
|
|
// TODO: Could make this O(n) as we're merging two sorted lists.
|
|
for (const auto &I : B.attrs())
|
|
addAttribute(I);
|
|
|
|
return *this;
|
|
}
|
|
|
|
AttrBuilder &AttrBuilder::remove(const AttributeMask &AM) {
|
|
erase_if(Attrs, [&](Attribute A) { return AM.contains(A); });
|
|
return *this;
|
|
}
|
|
|
|
bool AttrBuilder::overlaps(const AttributeMask &AM) const {
|
|
return any_of(Attrs, [&](Attribute A) { return AM.contains(A); });
|
|
}
|
|
|
|
Attribute AttrBuilder::getAttribute(Attribute::AttrKind A) const {
|
|
assert((unsigned)A < Attribute::EndAttrKinds && "Attribute out of range!");
|
|
auto It = lower_bound(Attrs, A, AttributeComparator());
|
|
if (It != Attrs.end() && It->hasAttribute(A))
|
|
return *It;
|
|
return {};
|
|
}
|
|
|
|
Attribute AttrBuilder::getAttribute(StringRef A) const {
|
|
auto It = lower_bound(Attrs, A, AttributeComparator());
|
|
if (It != Attrs.end() && It->hasAttribute(A))
|
|
return *It;
|
|
return {};
|
|
}
|
|
|
|
bool AttrBuilder::contains(Attribute::AttrKind A) const {
|
|
return getAttribute(A).isValid();
|
|
}
|
|
|
|
bool AttrBuilder::contains(StringRef A) const {
|
|
return getAttribute(A).isValid();
|
|
}
|
|
|
|
bool AttrBuilder::hasAlignmentAttr() const {
|
|
return getRawIntAttr(Attribute::Alignment) != 0;
|
|
}
|
|
|
|
bool AttrBuilder::operator==(const AttrBuilder &B) const {
|
|
return Attrs == B.Attrs;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// AttributeFuncs Function Defintions
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// Which attributes cannot be applied to a type.
|
|
AttributeMask AttributeFuncs::typeIncompatible(Type *Ty) {
|
|
AttributeMask Incompatible;
|
|
|
|
if (!Ty->isIntegerTy())
|
|
// Attributes that only apply to integers.
|
|
Incompatible.addAttribute(Attribute::SExt)
|
|
.addAttribute(Attribute::ZExt);
|
|
|
|
if (!Ty->isPointerTy())
|
|
// Attributes that only apply to pointers.
|
|
Incompatible.addAttribute(Attribute::Nest)
|
|
.addAttribute(Attribute::NoAlias)
|
|
.addAttribute(Attribute::NoCapture)
|
|
.addAttribute(Attribute::NonNull)
|
|
.addAttribute(Attribute::ReadNone)
|
|
.addAttribute(Attribute::ReadOnly)
|
|
.addAttribute(Attribute::SwiftError)
|
|
.addAttribute(Attribute::Dereferenceable)
|
|
.addAttribute(Attribute::DereferenceableOrNull)
|
|
.addAttribute(Attribute::Preallocated)
|
|
.addAttribute(Attribute::InAlloca)
|
|
.addAttribute(Attribute::ByVal)
|
|
.addAttribute(Attribute::StructRet)
|
|
.addAttribute(Attribute::ByRef)
|
|
.addAttribute(Attribute::ElementType);
|
|
|
|
if (!Ty->isPtrOrPtrVectorTy())
|
|
// Attributes that only apply to pointers or vectors of pointers.
|
|
Incompatible.addAttribute(Attribute::Alignment);
|
|
|
|
// Some attributes can apply to all "values" but there are no `void` values.
|
|
if (Ty->isVoidTy())
|
|
Incompatible.addAttribute(Attribute::NoUndef);
|
|
|
|
return Incompatible;
|
|
}
|
|
|
|
AttributeMask AttributeFuncs::getUBImplyingAttributes() {
|
|
AttributeMask AM;
|
|
AM.addAttribute(Attribute::NoUndef);
|
|
AM.addAttribute(Attribute::Dereferenceable);
|
|
AM.addAttribute(Attribute::DereferenceableOrNull);
|
|
return AM;
|
|
}
|
|
|
|
template<typename AttrClass>
|
|
static bool isEqual(const Function &Caller, const Function &Callee) {
|
|
return Caller.getFnAttribute(AttrClass::getKind()) ==
|
|
Callee.getFnAttribute(AttrClass::getKind());
|
|
}
|
|
|
|
/// Compute the logical AND of the attributes of the caller and the
|
|
/// callee.
|
|
///
|
|
/// This function sets the caller's attribute to false if the callee's attribute
|
|
/// is false.
|
|
template<typename AttrClass>
|
|
static void setAND(Function &Caller, const Function &Callee) {
|
|
if (AttrClass::isSet(Caller, AttrClass::getKind()) &&
|
|
!AttrClass::isSet(Callee, AttrClass::getKind()))
|
|
AttrClass::set(Caller, AttrClass::getKind(), false);
|
|
}
|
|
|
|
/// Compute the logical OR of the attributes of the caller and the
|
|
/// callee.
|
|
///
|
|
/// This function sets the caller's attribute to true if the callee's attribute
|
|
/// is true.
|
|
template<typename AttrClass>
|
|
static void setOR(Function &Caller, const Function &Callee) {
|
|
if (!AttrClass::isSet(Caller, AttrClass::getKind()) &&
|
|
AttrClass::isSet(Callee, AttrClass::getKind()))
|
|
AttrClass::set(Caller, AttrClass::getKind(), true);
|
|
}
|
|
|
|
/// If the inlined function had a higher stack protection level than the
|
|
/// calling function, then bump up the caller's stack protection level.
|
|
static void adjustCallerSSPLevel(Function &Caller, const Function &Callee) {
|
|
// If the calling function has *no* stack protection level (e.g. it was built
|
|
// with Clang's -fno-stack-protector or no_stack_protector attribute), don't
|
|
// change it as that could change the program's semantics.
|
|
if (!Caller.hasStackProtectorFnAttr())
|
|
return;
|
|
|
|
// If upgrading the SSP attribute, clear out the old SSP Attributes first.
|
|
// Having multiple SSP attributes doesn't actually hurt, but it adds useless
|
|
// clutter to the IR.
|
|
AttributeMask OldSSPAttr;
|
|
OldSSPAttr.addAttribute(Attribute::StackProtect)
|
|
.addAttribute(Attribute::StackProtectStrong)
|
|
.addAttribute(Attribute::StackProtectReq);
|
|
|
|
if (Callee.hasFnAttribute(Attribute::StackProtectReq)) {
|
|
Caller.removeFnAttrs(OldSSPAttr);
|
|
Caller.addFnAttr(Attribute::StackProtectReq);
|
|
} else if (Callee.hasFnAttribute(Attribute::StackProtectStrong) &&
|
|
!Caller.hasFnAttribute(Attribute::StackProtectReq)) {
|
|
Caller.removeFnAttrs(OldSSPAttr);
|
|
Caller.addFnAttr(Attribute::StackProtectStrong);
|
|
} else if (Callee.hasFnAttribute(Attribute::StackProtect) &&
|
|
!Caller.hasFnAttribute(Attribute::StackProtectReq) &&
|
|
!Caller.hasFnAttribute(Attribute::StackProtectStrong))
|
|
Caller.addFnAttr(Attribute::StackProtect);
|
|
}
|
|
|
|
/// If the inlined function required stack probes, then ensure that
|
|
/// the calling function has those too.
|
|
static void adjustCallerStackProbes(Function &Caller, const Function &Callee) {
|
|
if (!Caller.hasFnAttribute("probe-stack") &&
|
|
Callee.hasFnAttribute("probe-stack")) {
|
|
Caller.addFnAttr(Callee.getFnAttribute("probe-stack"));
|
|
}
|
|
}
|
|
|
|
/// If the inlined function defines the size of guard region
|
|
/// on the stack, then ensure that the calling function defines a guard region
|
|
/// that is no larger.
|
|
static void
|
|
adjustCallerStackProbeSize(Function &Caller, const Function &Callee) {
|
|
Attribute CalleeAttr = Callee.getFnAttribute("stack-probe-size");
|
|
if (CalleeAttr.isValid()) {
|
|
Attribute CallerAttr = Caller.getFnAttribute("stack-probe-size");
|
|
if (CallerAttr.isValid()) {
|
|
uint64_t CallerStackProbeSize, CalleeStackProbeSize;
|
|
CallerAttr.getValueAsString().getAsInteger(0, CallerStackProbeSize);
|
|
CalleeAttr.getValueAsString().getAsInteger(0, CalleeStackProbeSize);
|
|
|
|
if (CallerStackProbeSize > CalleeStackProbeSize) {
|
|
Caller.addFnAttr(CalleeAttr);
|
|
}
|
|
} else {
|
|
Caller.addFnAttr(CalleeAttr);
|
|
}
|
|
}
|
|
}
|
|
|
|
/// If the inlined function defines a min legal vector width, then ensure
|
|
/// the calling function has the same or larger min legal vector width. If the
|
|
/// caller has the attribute, but the callee doesn't, we need to remove the
|
|
/// attribute from the caller since we can't make any guarantees about the
|
|
/// caller's requirements.
|
|
/// This function is called after the inlining decision has been made so we have
|
|
/// to merge the attribute this way. Heuristics that would use
|
|
/// min-legal-vector-width to determine inline compatibility would need to be
|
|
/// handled as part of inline cost analysis.
|
|
static void
|
|
adjustMinLegalVectorWidth(Function &Caller, const Function &Callee) {
|
|
Attribute CallerAttr = Caller.getFnAttribute("min-legal-vector-width");
|
|
if (CallerAttr.isValid()) {
|
|
Attribute CalleeAttr = Callee.getFnAttribute("min-legal-vector-width");
|
|
if (CalleeAttr.isValid()) {
|
|
uint64_t CallerVectorWidth, CalleeVectorWidth;
|
|
CallerAttr.getValueAsString().getAsInteger(0, CallerVectorWidth);
|
|
CalleeAttr.getValueAsString().getAsInteger(0, CalleeVectorWidth);
|
|
if (CallerVectorWidth < CalleeVectorWidth)
|
|
Caller.addFnAttr(CalleeAttr);
|
|
} else {
|
|
// If the callee doesn't have the attribute then we don't know anything
|
|
// and must drop the attribute from the caller.
|
|
Caller.removeFnAttr("min-legal-vector-width");
|
|
}
|
|
}
|
|
}
|
|
|
|
/// If the inlined function has null_pointer_is_valid attribute,
|
|
/// set this attribute in the caller post inlining.
|
|
static void
|
|
adjustNullPointerValidAttr(Function &Caller, const Function &Callee) {
|
|
if (Callee.nullPointerIsDefined() && !Caller.nullPointerIsDefined()) {
|
|
Caller.addFnAttr(Attribute::NullPointerIsValid);
|
|
}
|
|
}
|
|
|
|
struct EnumAttr {
|
|
static bool isSet(const Function &Fn,
|
|
Attribute::AttrKind Kind) {
|
|
return Fn.hasFnAttribute(Kind);
|
|
}
|
|
|
|
static void set(Function &Fn,
|
|
Attribute::AttrKind Kind, bool Val) {
|
|
if (Val)
|
|
Fn.addFnAttr(Kind);
|
|
else
|
|
Fn.removeFnAttr(Kind);
|
|
}
|
|
};
|
|
|
|
struct StrBoolAttr {
|
|
static bool isSet(const Function &Fn,
|
|
StringRef Kind) {
|
|
auto A = Fn.getFnAttribute(Kind);
|
|
return A.getValueAsString().equals("true");
|
|
}
|
|
|
|
static void set(Function &Fn,
|
|
StringRef Kind, bool Val) {
|
|
Fn.addFnAttr(Kind, Val ? "true" : "false");
|
|
}
|
|
};
|
|
|
|
#define GET_ATTR_NAMES
|
|
#define ATTRIBUTE_ENUM(ENUM_NAME, DISPLAY_NAME) \
|
|
struct ENUM_NAME##Attr : EnumAttr { \
|
|
static enum Attribute::AttrKind getKind() { \
|
|
return llvm::Attribute::ENUM_NAME; \
|
|
} \
|
|
};
|
|
#define ATTRIBUTE_STRBOOL(ENUM_NAME, DISPLAY_NAME) \
|
|
struct ENUM_NAME##Attr : StrBoolAttr { \
|
|
static StringRef getKind() { return #DISPLAY_NAME; } \
|
|
};
|
|
#include "llvm/IR/Attributes.inc"
|
|
|
|
#define GET_ATTR_COMPAT_FUNC
|
|
#include "llvm/IR/Attributes.inc"
|
|
|
|
bool AttributeFuncs::areInlineCompatible(const Function &Caller,
|
|
const Function &Callee) {
|
|
return hasCompatibleFnAttrs(Caller, Callee);
|
|
}
|
|
|
|
bool AttributeFuncs::areOutlineCompatible(const Function &A,
|
|
const Function &B) {
|
|
return hasCompatibleFnAttrs(A, B);
|
|
}
|
|
|
|
void AttributeFuncs::mergeAttributesForInlining(Function &Caller,
|
|
const Function &Callee) {
|
|
mergeFnAttrs(Caller, Callee);
|
|
}
|
|
|
|
void AttributeFuncs::mergeAttributesForOutlining(Function &Base,
|
|
const Function &ToMerge) {
|
|
|
|
// We merge functions so that they meet the most general case.
|
|
// For example, if the NoNansFPMathAttr is set in one function, but not in
|
|
// the other, in the merged function we can say that the NoNansFPMathAttr
|
|
// is not set.
|
|
// However if we have the SpeculativeLoadHardeningAttr set true in one
|
|
// function, but not the other, we make sure that the function retains
|
|
// that aspect in the merged function.
|
|
mergeFnAttrs(Base, ToMerge);
|
|
}
|