2012-12-19 15:18:57 +08:00
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//===-- Attribute.cpp - Implement AttributesList -------------------------===//
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2008-01-03 07:42:30 +08:00
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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2012-12-19 15:18:57 +08:00
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// This file implements the Attribute, AttributeImpl, AttrBuilder,
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2012-12-20 06:42:22 +08:00
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// AttributeSetImpl, and AttributeSet classes.
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2008-01-03 07:42:30 +08:00
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//
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//===----------------------------------------------------------------------===//
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2013-01-02 19:36:10 +08:00
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#include "llvm/IR/Attributes.h"
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2012-12-20 09:36:59 +08:00
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#include "AttributeImpl.h"
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2012-09-27 05:07:29 +08:00
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#include "LLVMContextImpl.h"
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2008-03-13 01:45:29 +08:00
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#include "llvm/ADT/FoldingSet.h"
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2012-12-04 00:50:05 +08:00
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#include "llvm/ADT/StringExtras.h"
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2013-01-02 19:36:10 +08:00
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#include "llvm/IR/Type.h"
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2010-11-30 02:16:10 +08:00
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#include "llvm/Support/Atomic.h"
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2010-01-05 09:29:58 +08:00
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#include "llvm/Support/Debug.h"
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2008-01-03 07:42:30 +08:00
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#include "llvm/Support/ManagedStatic.h"
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2012-12-04 00:50:05 +08:00
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#include "llvm/Support/Mutex.h"
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2009-08-23 19:37:21 +08:00
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#include "llvm/Support/raw_ostream.h"
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2008-01-03 07:42:30 +08:00
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using namespace llvm;
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2008-03-13 01:45:29 +08:00
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//===----------------------------------------------------------------------===//
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2012-12-19 15:18:57 +08:00
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// Attribute Implementation
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2008-03-13 01:45:29 +08:00
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//===----------------------------------------------------------------------===//
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2008-01-15 03:52:09 +08:00
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2012-12-22 08:37:52 +08:00
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Attribute Attribute::get(LLVMContext &Context, ArrayRef<AttrKind> Vals) {
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2012-10-16 04:35:56 +08:00
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AttrBuilder B;
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2012-12-22 08:37:52 +08:00
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for (ArrayRef<AttrKind>::iterator I = Vals.begin(), E = Vals.end();
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2012-10-15 12:46:55 +08:00
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I != E; ++I)
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B.addAttribute(*I);
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2012-12-19 15:18:57 +08:00
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return Attribute::get(Context, B);
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2012-10-15 12:46:55 +08:00
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}
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2012-10-11 09:05:52 +08:00
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2012-12-19 15:18:57 +08:00
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Attribute Attribute::get(LLVMContext &Context, AttrBuilder &B) {
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// If there are no attributes, return an empty Attribute class.
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2012-10-16 13:55:09 +08:00
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if (!B.hasAttributes())
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2012-12-19 15:18:57 +08:00
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return Attribute();
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2012-10-09 05:47:17 +08:00
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// Otherwise, build a key to look up the existing attributes.
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LLVMContextImpl *pImpl = Context.pImpl;
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FoldingSetNodeID ID;
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2012-12-30 09:05:42 +08:00
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ID.AddInteger(B.getBitMask());
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2012-10-09 05:47:17 +08:00
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void *InsertPoint;
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2012-12-20 09:36:59 +08:00
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AttributeImpl *PA = pImpl->AttrsSet.FindNodeOrInsertPos(ID, InsertPoint);
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2012-10-09 05:47:17 +08:00
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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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2012-12-30 09:05:42 +08:00
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PA = new AttributeImpl(Context, B.getBitMask());
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2012-10-09 05:47:17 +08:00
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pImpl->AttrsSet.InsertNode(PA, InsertPoint);
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}
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// Return the AttributesList that we found or created.
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2012-12-19 15:18:57 +08:00
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return Attribute(PA);
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2012-10-09 05:47:17 +08:00
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}
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2012-12-22 08:37:52 +08:00
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bool Attribute::hasAttribute(AttrKind Val) const {
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2012-12-21 05:28:43 +08:00
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return pImpl && pImpl->hasAttribute(Val);
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2012-10-05 14:44:41 +08:00
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}
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2012-12-19 15:18:57 +08:00
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bool Attribute::hasAttributes() const {
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2012-12-21 05:28:43 +08:00
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return pImpl && pImpl->hasAttributes();
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2012-10-15 13:40:12 +08:00
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}
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2012-12-19 15:18:57 +08:00
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bool Attribute::hasAttributes(const Attribute &A) const {
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2012-12-21 05:28:43 +08:00
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return pImpl && pImpl->hasAttributes(A);
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2012-10-09 17:11:20 +08:00
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}
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2012-10-05 14:44:41 +08:00
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/// This returns the alignment field of an attribute as a byte alignment value.
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2012-12-19 15:18:57 +08:00
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unsigned Attribute::getAlignment() const {
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if (!hasAttribute(Attribute::Alignment))
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2012-10-10 04:56:48 +08:00
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return 0;
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2012-12-21 05:28:43 +08:00
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return 1U << ((pImpl->getAlignment() >> 16) - 1);
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2012-10-05 14:44:41 +08:00
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}
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/// This returns the stack alignment field of an attribute as a byte alignment
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/// value.
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2012-12-19 15:18:57 +08:00
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unsigned Attribute::getStackAlignment() const {
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if (!hasAttribute(Attribute::StackAlignment))
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2012-10-10 04:56:48 +08:00
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return 0;
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2012-12-21 05:28:43 +08:00
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return 1U << ((pImpl->getStackAlignment() >> 26) - 1);
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2012-10-05 14:44:41 +08:00
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}
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2012-12-31 19:51:54 +08:00
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bool Attribute::operator==(AttrKind K) const {
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2013-01-03 09:54:39 +08:00
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return pImpl && pImpl->contains(K);
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2012-12-31 19:51:54 +08:00
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}
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bool Attribute::operator!=(AttrKind K) const {
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2013-01-03 09:54:39 +08:00
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return !(pImpl && pImpl->contains(K));
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2012-12-31 19:51:54 +08:00
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}
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2012-12-30 09:05:42 +08:00
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uint64_t Attribute::getBitMask() const {
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return pImpl ? pImpl->getBitMask() : 0;
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2012-10-07 16:55:05 +08:00
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}
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2012-12-19 15:18:57 +08:00
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Attribute Attribute::typeIncompatible(Type *Ty) {
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2012-10-16 04:35:56 +08:00
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AttrBuilder Incompatible;
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2012-10-16 14:01:44 +08:00
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2012-10-10 03:01:18 +08:00
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if (!Ty->isIntegerTy())
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2012-12-19 15:18:57 +08:00
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// Attribute that only apply to integers.
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Incompatible.addAttribute(Attribute::SExt)
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.addAttribute(Attribute::ZExt);
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2012-10-16 14:01:44 +08:00
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2012-10-10 03:01:18 +08:00
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if (!Ty->isPointerTy())
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2012-12-19 15:18:57 +08:00
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// Attribute that only apply to pointers.
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Incompatible.addAttribute(Attribute::ByVal)
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.addAttribute(Attribute::Nest)
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.addAttribute(Attribute::NoAlias)
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.addAttribute(Attribute::NoCapture)
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.addAttribute(Attribute::StructRet);
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2012-10-16 14:01:44 +08:00
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2012-12-19 15:18:57 +08:00
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return Attribute::get(Ty->getContext(), Incompatible);
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2012-10-05 14:44:41 +08:00
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}
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2012-10-16 04:35:56 +08:00
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/// encodeLLVMAttributesForBitcode - This returns an integer containing an
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/// encoding of all the LLVM attributes found in the given attribute bitset.
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/// Any change to this encoding is a breaking change to bitcode compatibility.
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2012-12-19 15:18:57 +08:00
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uint64_t Attribute::encodeLLVMAttributesForBitcode(Attribute Attrs) {
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2012-10-16 04:35:56 +08:00
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// FIXME: It doesn't make sense to store the alignment information as an
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// expanded out value, we should store it as a log2 value. However, we can't
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// just change that here without breaking bitcode compatibility. If this ever
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// becomes a problem in practice, we should introduce new tag numbers in the
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// bitcode file and have those tags use a more efficiently encoded alignment
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// field.
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// Store the alignment in the bitcode as a 16-bit raw value instead of a 5-bit
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// log2 encoded value. Shift the bits above the alignment up by 11 bits.
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2012-12-30 09:05:42 +08:00
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uint64_t EncodedAttrs = Attrs.getBitMask() & 0xffff;
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2012-12-19 15:18:57 +08:00
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if (Attrs.hasAttribute(Attribute::Alignment))
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2012-10-16 04:35:56 +08:00
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EncodedAttrs |= Attrs.getAlignment() << 16;
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2012-12-30 09:05:42 +08:00
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EncodedAttrs |= (Attrs.getBitMask() & (0xffffULL << 21)) << 11;
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2012-10-16 04:35:56 +08:00
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return EncodedAttrs;
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}
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/// decodeLLVMAttributesForBitcode - This returns an attribute bitset containing
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/// the LLVM attributes that have been decoded from the given integer. This
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/// function must stay in sync with 'encodeLLVMAttributesForBitcode'.
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2012-12-19 15:18:57 +08:00
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Attribute Attribute::decodeLLVMAttributesForBitcode(LLVMContext &C,
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2012-10-16 04:35:56 +08:00
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uint64_t EncodedAttrs) {
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// The alignment is stored as a 16-bit raw value from bits 31--16. We shift
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// the bits above 31 down by 11 bits.
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unsigned Alignment = (EncodedAttrs & (0xffffULL << 16)) >> 16;
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assert((!Alignment || isPowerOf2_32(Alignment)) &&
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"Alignment must be a power of two.");
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AttrBuilder B(EncodedAttrs & 0xffff);
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if (Alignment)
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B.addAlignmentAttr(Alignment);
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2012-10-23 01:33:31 +08:00
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B.addRawValue((EncodedAttrs & (0xffffULL << 32)) >> 11);
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2012-12-19 15:18:57 +08:00
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return Attribute::get(C, B);
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2012-10-16 04:35:56 +08:00
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}
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2012-12-19 15:18:57 +08:00
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std::string Attribute::getAsString() const {
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2008-01-03 07:42:30 +08:00
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std::string Result;
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::ZExt))
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2008-01-03 07:42:30 +08:00
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Result += "zeroext ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::SExt))
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2008-01-03 07:42:30 +08:00
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Result += "signext ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::NoReturn))
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2008-01-03 07:42:30 +08:00
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Result += "noreturn ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::NoUnwind))
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2008-01-03 07:42:30 +08:00
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Result += "nounwind ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::UWTable))
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2011-05-25 11:44:17 +08:00
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Result += "uwtable ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::ReturnsTwice))
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2011-10-03 22:45:37 +08:00
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Result += "returns_twice ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::InReg))
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2008-01-03 07:42:30 +08:00
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Result += "inreg ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::NoAlias))
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2008-01-03 07:42:30 +08:00
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Result += "noalias ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::NoCapture))
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2008-12-19 17:38:31 +08:00
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Result += "nocapture ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::StructRet))
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2009-07-18 02:07:26 +08:00
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Result += "sret ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::ByVal))
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2008-01-03 07:42:30 +08:00
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Result += "byval ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::Nest))
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2008-01-03 07:42:30 +08:00
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Result += "nest ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::ReadNone))
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2008-01-03 07:42:30 +08:00
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Result += "readnone ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::ReadOnly))
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2008-01-03 07:42:30 +08:00
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Result += "readonly ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::OptimizeForSize))
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2008-09-27 06:53:05 +08:00
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Result += "optsize ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::NoInline))
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2008-09-27 06:53:05 +08:00
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Result += "noinline ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::InlineHint))
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2010-02-06 09:16:28 +08:00
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Result += "inlinehint ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::AlwaysInline))
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2008-09-27 06:53:05 +08:00
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Result += "alwaysinline ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::StackProtect))
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2008-11-13 09:02:14 +08:00
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Result += "ssp ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::StackProtectReq))
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2008-11-13 09:02:14 +08:00
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Result += "sspreq ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::NoRedZone))
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2009-06-05 06:05:33 +08:00
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Result += "noredzone ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::NoImplicitFloat))
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2009-06-06 05:57:13 +08:00
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Result += "noimplicitfloat ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::Naked))
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2009-07-18 02:07:26 +08:00
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Result += "naked ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::NonLazyBind))
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2011-06-16 04:36:13 +08:00
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Result += "nonlazybind ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::AddressSafety))
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2012-01-21 01:56:17 +08:00
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Result += "address_safety ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::MinSize))
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2012-10-31 00:32:52 +08:00
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Result += "minsize ";
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::StackAlignment)) {
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2010-02-12 08:31:15 +08:00
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Result += "alignstack(";
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2012-09-21 23:26:31 +08:00
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Result += utostr(getStackAlignment());
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2010-02-12 08:31:15 +08:00
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Result += ") ";
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}
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2012-12-19 15:18:57 +08:00
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if (hasAttribute(Attribute::Alignment)) {
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2008-02-20 07:51:49 +08:00
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Result += "align ";
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2012-09-21 23:26:31 +08:00
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Result += utostr(getAlignment());
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2008-02-20 07:51:49 +08:00
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Result += " ";
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}
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2012-12-21 00:04:27 +08:00
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if (hasAttribute(Attribute::NoDuplicate))
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Result += "noduplicate ";
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2008-08-05 23:51:44 +08:00
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// Trim the trailing space.
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2008-12-19 17:38:31 +08:00
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assert(!Result.empty() && "Unknown attribute!");
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2008-08-05 23:51:44 +08:00
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Result.erase(Result.end()-1);
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2008-01-03 07:42:30 +08:00
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return Result;
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}
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2012-10-05 14:44:41 +08:00
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//===----------------------------------------------------------------------===//
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2012-10-16 04:35:56 +08:00
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// AttrBuilder Implementation
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2012-10-05 14:44:41 +08:00
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//===----------------------------------------------------------------------===//
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2012-12-22 08:37:52 +08:00
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AttrBuilder &AttrBuilder::addAttribute(Attribute::AttrKind Val){
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2012-12-20 09:36:59 +08:00
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Bits |= AttributeImpl::getAttrMask(Val);
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2012-10-10 03:01:18 +08:00
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return *this;
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2012-10-05 14:44:41 +08:00
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}
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2012-10-16 04:35:56 +08:00
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AttrBuilder &AttrBuilder::addRawValue(uint64_t Val) {
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2012-10-14 12:10:01 +08:00
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Bits |= Val;
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return *this;
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}
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2012-10-16 04:35:56 +08:00
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AttrBuilder &AttrBuilder::addAlignmentAttr(unsigned Align) {
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2012-10-14 11:58:29 +08:00
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if (Align == 0) return *this;
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2012-10-05 14:44:41 +08:00
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assert(isPowerOf2_32(Align) && "Alignment must be a power of two.");
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assert(Align <= 0x40000000 && "Alignment too large.");
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|
|
Bits |= (Log2_32(Align) + 1) << 16;
|
2012-10-14 11:58:29 +08:00
|
|
|
return *this;
|
2012-10-05 14:44:41 +08:00
|
|
|
}
|
2013-01-03 10:01:50 +08:00
|
|
|
AttrBuilder &AttrBuilder::addStackAlignmentAttr(unsigned Align){
|
2012-10-05 14:44:41 +08:00
|
|
|
// Default alignment, allow the target to define how to align it.
|
2012-10-14 11:58:29 +08:00
|
|
|
if (Align == 0) return *this;
|
2012-10-05 14:44:41 +08:00
|
|
|
assert(isPowerOf2_32(Align) && "Alignment must be a power of two.");
|
|
|
|
assert(Align <= 0x100 && "Alignment too large.");
|
|
|
|
Bits |= (Log2_32(Align) + 1) << 26;
|
2012-10-14 11:58:29 +08:00
|
|
|
return *this;
|
2008-01-03 07:42:30 +08:00
|
|
|
}
|
|
|
|
|
2012-12-22 08:37:52 +08:00
|
|
|
AttrBuilder &AttrBuilder::removeAttribute(Attribute::AttrKind Val) {
|
2012-12-20 09:36:59 +08:00
|
|
|
Bits &= ~AttributeImpl::getAttrMask(Val);
|
2012-10-10 03:01:18 +08:00
|
|
|
return *this;
|
2012-10-09 17:11:20 +08:00
|
|
|
}
|
|
|
|
|
2012-12-19 15:18:57 +08:00
|
|
|
AttrBuilder &AttrBuilder::addAttributes(const Attribute &A) {
|
2012-12-30 09:05:42 +08:00
|
|
|
Bits |= A.getBitMask();
|
2012-10-14 15:17:34 +08:00
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
2012-12-19 15:18:57 +08:00
|
|
|
AttrBuilder &AttrBuilder::removeAttributes(const Attribute &A){
|
2012-12-30 09:05:42 +08:00
|
|
|
Bits &= ~A.getBitMask();
|
2012-10-14 14:39:53 +08:00
|
|
|
return *this;
|
2012-10-09 08:01:21 +08:00
|
|
|
}
|
|
|
|
|
2013-01-03 09:54:39 +08:00
|
|
|
bool AttrBuilder::contains(Attribute::AttrKind A) const {
|
2012-12-20 09:36:59 +08:00
|
|
|
return Bits & AttributeImpl::getAttrMask(A);
|
2012-10-10 15:36:45 +08:00
|
|
|
}
|
|
|
|
|
2012-10-16 04:35:56 +08:00
|
|
|
bool AttrBuilder::hasAttributes() const {
|
2012-10-09 07:27:46 +08:00
|
|
|
return Bits != 0;
|
|
|
|
}
|
2012-12-19 15:18:57 +08:00
|
|
|
bool AttrBuilder::hasAttributes(const Attribute &A) const {
|
2012-12-30 09:05:42 +08:00
|
|
|
return Bits & A.getBitMask();
|
2012-10-09 08:01:21 +08:00
|
|
|
}
|
2012-10-16 04:35:56 +08:00
|
|
|
bool AttrBuilder::hasAlignmentAttr() const {
|
2012-12-20 09:36:59 +08:00
|
|
|
return Bits & AttributeImpl::getAttrMask(Attribute::Alignment);
|
2012-10-09 07:27:46 +08:00
|
|
|
}
|
|
|
|
|
2012-10-16 04:35:56 +08:00
|
|
|
uint64_t AttrBuilder::getAlignment() const {
|
2012-10-10 04:56:48 +08:00
|
|
|
if (!hasAlignmentAttr())
|
|
|
|
return 0;
|
2012-11-19 18:03:09 +08:00
|
|
|
return 1ULL <<
|
2012-12-20 09:36:59 +08:00
|
|
|
(((Bits & AttributeImpl::getAttrMask(Attribute::Alignment)) >> 16) - 1);
|
2012-10-09 07:27:46 +08:00
|
|
|
}
|
|
|
|
|
2012-10-16 04:35:56 +08:00
|
|
|
uint64_t AttrBuilder::getStackAlignment() const {
|
2012-10-10 15:36:45 +08:00
|
|
|
if (!hasAlignmentAttr())
|
|
|
|
return 0;
|
2012-11-19 18:03:09 +08:00
|
|
|
return 1ULL <<
|
2012-12-20 09:36:59 +08:00
|
|
|
(((Bits & AttributeImpl::getAttrMask(Attribute::StackAlignment))>>26)-1);
|
2012-10-10 15:36:45 +08:00
|
|
|
}
|
|
|
|
|
2012-09-27 05:07:29 +08:00
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// AttributeImpl Definition
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
2012-12-29 20:29:38 +08:00
|
|
|
AttributeImpl::AttributeImpl(LLVMContext &C, uint64_t data) {
|
|
|
|
Data = ConstantInt::get(Type::getInt64Ty(C), data);
|
|
|
|
}
|
2012-12-30 10:22:16 +08:00
|
|
|
AttributeImpl::AttributeImpl(LLVMContext &C, Attribute::AttrKind data) {
|
|
|
|
Data = ConstantInt::get(Type::getInt64Ty(C), data);
|
|
|
|
}
|
|
|
|
AttributeImpl::AttributeImpl(LLVMContext &C, Attribute::AttrKind data,
|
|
|
|
ArrayRef<Constant*> values) {
|
|
|
|
Data = ConstantInt::get(Type::getInt64Ty(C), data);
|
|
|
|
Vals.reserve(values.size());
|
|
|
|
Vals.append(values.begin(), values.end());
|
|
|
|
}
|
|
|
|
AttributeImpl::AttributeImpl(LLVMContext &C, StringRef data) {
|
|
|
|
Data = ConstantDataArray::getString(C, data);
|
|
|
|
}
|
2012-12-29 20:29:38 +08:00
|
|
|
|
2013-01-03 09:54:39 +08:00
|
|
|
bool AttributeImpl::contains(Attribute::AttrKind Kind) const {
|
2012-12-30 09:38:39 +08:00
|
|
|
if (ConstantInt *CI = dyn_cast<ConstantInt>(Data))
|
|
|
|
return CI->getZExtValue() == Kind;
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2013-01-03 09:54:39 +08:00
|
|
|
bool AttributeImpl::contains(StringRef Kind) const {
|
2012-12-30 09:38:39 +08:00
|
|
|
if (ConstantDataArray *CDA = dyn_cast<ConstantDataArray>(Data))
|
|
|
|
if (CDA->isString())
|
|
|
|
return CDA->getAsString() == Kind;
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2012-12-30 09:05:42 +08:00
|
|
|
uint64_t AttributeImpl::getBitMask() const {
|
2012-12-30 09:38:39 +08:00
|
|
|
// FIXME: Remove this.
|
2012-12-29 20:29:38 +08:00
|
|
|
return cast<ConstantInt>(Data)->getZExtValue();
|
|
|
|
}
|
|
|
|
|
2013-01-03 10:01:50 +08:00
|
|
|
uint64_t AttributeImpl::getAttrMask(uint64_t Val) {
|
2012-10-09 15:45:08 +08:00
|
|
|
switch (Val) {
|
2012-12-19 15:18:57 +08:00
|
|
|
case Attribute::None: return 0;
|
|
|
|
case Attribute::ZExt: return 1 << 0;
|
|
|
|
case Attribute::SExt: return 1 << 1;
|
|
|
|
case Attribute::NoReturn: return 1 << 2;
|
|
|
|
case Attribute::InReg: return 1 << 3;
|
|
|
|
case Attribute::StructRet: return 1 << 4;
|
|
|
|
case Attribute::NoUnwind: return 1 << 5;
|
|
|
|
case Attribute::NoAlias: return 1 << 6;
|
|
|
|
case Attribute::ByVal: return 1 << 7;
|
|
|
|
case Attribute::Nest: return 1 << 8;
|
|
|
|
case Attribute::ReadNone: return 1 << 9;
|
|
|
|
case Attribute::ReadOnly: return 1 << 10;
|
|
|
|
case Attribute::NoInline: return 1 << 11;
|
|
|
|
case Attribute::AlwaysInline: return 1 << 12;
|
|
|
|
case Attribute::OptimizeForSize: return 1 << 13;
|
|
|
|
case Attribute::StackProtect: return 1 << 14;
|
|
|
|
case Attribute::StackProtectReq: return 1 << 15;
|
|
|
|
case Attribute::Alignment: return 31 << 16;
|
|
|
|
case Attribute::NoCapture: return 1 << 21;
|
|
|
|
case Attribute::NoRedZone: return 1 << 22;
|
|
|
|
case Attribute::NoImplicitFloat: return 1 << 23;
|
|
|
|
case Attribute::Naked: return 1 << 24;
|
|
|
|
case Attribute::InlineHint: return 1 << 25;
|
|
|
|
case Attribute::StackAlignment: return 7 << 26;
|
|
|
|
case Attribute::ReturnsTwice: return 1 << 29;
|
|
|
|
case Attribute::UWTable: return 1 << 30;
|
|
|
|
case Attribute::NonLazyBind: return 1U << 31;
|
|
|
|
case Attribute::AddressSafety: return 1ULL << 32;
|
|
|
|
case Attribute::MinSize: return 1ULL << 33;
|
2012-12-21 00:04:27 +08:00
|
|
|
case Attribute::NoDuplicate: return 1ULL << 34;
|
2012-10-09 15:45:08 +08:00
|
|
|
}
|
|
|
|
llvm_unreachable("Unsupported attribute type");
|
|
|
|
}
|
|
|
|
|
2013-01-03 10:01:50 +08:00
|
|
|
bool AttributeImpl::hasAttribute(uint64_t A) const {
|
2012-12-30 09:05:42 +08:00
|
|
|
return (getBitMask() & getAttrMask(A)) != 0;
|
2012-10-09 05:47:17 +08:00
|
|
|
}
|
2012-09-27 05:07:29 +08:00
|
|
|
|
2012-12-20 09:36:59 +08:00
|
|
|
bool AttributeImpl::hasAttributes() const {
|
2012-12-30 09:05:42 +08:00
|
|
|
return getBitMask() != 0;
|
2012-10-09 05:47:17 +08:00
|
|
|
}
|
2012-09-27 05:07:29 +08:00
|
|
|
|
2012-12-20 09:36:59 +08:00
|
|
|
bool AttributeImpl::hasAttributes(const Attribute &A) const {
|
2012-12-30 09:05:42 +08:00
|
|
|
// FIXME: getBitMask() won't work here in the future.
|
|
|
|
return getBitMask() & A.getBitMask();
|
2012-10-09 05:47:17 +08:00
|
|
|
}
|
2012-09-27 05:07:29 +08:00
|
|
|
|
2012-12-20 09:36:59 +08:00
|
|
|
uint64_t AttributeImpl::getAlignment() const {
|
2012-12-30 09:05:42 +08:00
|
|
|
return getBitMask() & getAttrMask(Attribute::Alignment);
|
2012-10-09 05:47:17 +08:00
|
|
|
}
|
2012-09-27 05:07:29 +08:00
|
|
|
|
2012-12-20 09:36:59 +08:00
|
|
|
uint64_t AttributeImpl::getStackAlignment() const {
|
2012-12-30 09:05:42 +08:00
|
|
|
return getBitMask() & getAttrMask(Attribute::StackAlignment);
|
2012-10-09 05:47:17 +08:00
|
|
|
}
|
2012-09-27 05:07:29 +08:00
|
|
|
|
2008-03-13 01:45:29 +08:00
|
|
|
//===----------------------------------------------------------------------===//
|
2012-12-20 06:42:22 +08:00
|
|
|
// AttributeSetImpl Definition
|
2008-03-13 01:45:29 +08:00
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
2012-12-08 07:16:57 +08:00
|
|
|
AttributeSet AttributeSet::get(LLVMContext &C,
|
2012-12-13 03:21:53 +08:00
|
|
|
ArrayRef<AttributeWithIndex> Attrs) {
|
2008-09-26 05:00:45 +08:00
|
|
|
// If there are no attributes then return a null AttributesList pointer.
|
2012-05-28 09:47:44 +08:00
|
|
|
if (Attrs.empty())
|
2012-12-08 07:16:57 +08:00
|
|
|
return AttributeSet();
|
2012-10-16 14:01:44 +08:00
|
|
|
|
2008-01-03 07:42:30 +08:00
|
|
|
#ifndef NDEBUG
|
2012-05-28 09:47:44 +08:00
|
|
|
for (unsigned i = 0, e = Attrs.size(); i != e; ++i) {
|
2012-10-16 14:01:44 +08:00
|
|
|
assert(Attrs[i].Attrs.hasAttributes() &&
|
2008-09-26 05:00:45 +08:00
|
|
|
"Pointless attribute!");
|
2008-03-13 01:45:29 +08:00
|
|
|
assert((!i || Attrs[i-1].Index < Attrs[i].Index) &&
|
2008-09-26 05:00:45 +08:00
|
|
|
"Misordered AttributesList!");
|
2008-01-03 07:42:30 +08:00
|
|
|
}
|
|
|
|
#endif
|
2012-10-16 14:01:44 +08:00
|
|
|
|
2008-01-03 07:42:30 +08:00
|
|
|
// Otherwise, build a key to look up the existing attributes.
|
2012-11-20 13:09:20 +08:00
|
|
|
LLVMContextImpl *pImpl = C.pImpl;
|
2008-01-03 07:42:30 +08:00
|
|
|
FoldingSetNodeID ID;
|
2012-12-20 06:42:22 +08:00
|
|
|
AttributeSetImpl::Profile(ID, Attrs);
|
2012-10-16 14:01:44 +08:00
|
|
|
|
2012-11-20 13:09:20 +08:00
|
|
|
void *InsertPoint;
|
2012-12-20 06:42:22 +08:00
|
|
|
AttributeSetImpl *PA = pImpl->AttrsLists.FindNodeOrInsertPos(ID,
|
2012-11-20 13:09:20 +08:00
|
|
|
InsertPoint);
|
2012-10-16 14:01:44 +08:00
|
|
|
|
2008-01-03 07:42:30 +08:00
|
|
|
// If we didn't find any existing attributes of the same shape then
|
|
|
|
// create a new one and insert it.
|
2012-11-20 13:09:20 +08:00
|
|
|
if (!PA) {
|
2012-12-20 07:55:43 +08:00
|
|
|
PA = new AttributeSetImpl(C, Attrs);
|
2012-11-20 13:09:20 +08:00
|
|
|
pImpl->AttrsLists.InsertNode(PA, InsertPoint);
|
2008-01-03 07:42:30 +08:00
|
|
|
}
|
2012-10-16 14:01:44 +08:00
|
|
|
|
2008-09-26 05:00:45 +08:00
|
|
|
// Return the AttributesList that we found or created.
|
2012-12-08 07:16:57 +08:00
|
|
|
return AttributeSet(PA);
|
2008-01-03 07:42:30 +08:00
|
|
|
}
|
|
|
|
|
2008-03-13 01:45:29 +08:00
|
|
|
//===----------------------------------------------------------------------===//
|
2012-12-08 07:16:57 +08:00
|
|
|
// AttributeSet Method Implementations
|
2008-03-13 01:45:29 +08:00
|
|
|
//===----------------------------------------------------------------------===//
|
2008-01-03 07:42:30 +08:00
|
|
|
|
2012-12-08 07:16:57 +08:00
|
|
|
const AttributeSet &AttributeSet::operator=(const AttributeSet &RHS) {
|
2008-09-26 05:00:45 +08:00
|
|
|
AttrList = RHS.AttrList;
|
2008-03-13 01:45:29 +08:00
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
2012-10-16 14:01:44 +08:00
|
|
|
/// getNumSlots - Return the number of slots used in this attribute list.
|
2008-03-13 01:45:29 +08:00
|
|
|
/// This is the number of arguments that have an attribute set on them
|
|
|
|
/// (including the function itself).
|
2012-12-08 07:16:57 +08:00
|
|
|
unsigned AttributeSet::getNumSlots() const {
|
2008-09-26 05:00:45 +08:00
|
|
|
return AttrList ? AttrList->Attrs.size() : 0;
|
2008-03-13 01:45:29 +08:00
|
|
|
}
|
2008-01-03 07:42:30 +08:00
|
|
|
|
2008-09-26 05:00:45 +08:00
|
|
|
/// getSlot - Return the AttributeWithIndex at the specified slot. This
|
|
|
|
/// holds a number plus a set of attributes.
|
2012-12-08 07:16:57 +08:00
|
|
|
const AttributeWithIndex &AttributeSet::getSlot(unsigned Slot) const {
|
2008-09-26 05:00:45 +08:00
|
|
|
assert(AttrList && Slot < AttrList->Attrs.size() && "Slot # out of range!");
|
|
|
|
return AttrList->Attrs[Slot];
|
2008-03-13 01:45:29 +08:00
|
|
|
}
|
|
|
|
|
2012-12-30 18:32:01 +08:00
|
|
|
bool AttributeSet::hasAttribute(unsigned Index, Attribute::AttrKind Kind) const{
|
|
|
|
return getAttributes(Index).hasAttribute(Kind);
|
|
|
|
}
|
|
|
|
|
|
|
|
bool AttributeSet::hasAttributes(unsigned Index) const {
|
|
|
|
return getAttributes(Index).hasAttributes();
|
|
|
|
}
|
|
|
|
|
|
|
|
std::string AttributeSet::getAsString(unsigned Index) const {
|
|
|
|
return getAttributes(Index).getAsString();
|
|
|
|
}
|
|
|
|
|
|
|
|
unsigned AttributeSet::getStackAlignment(unsigned Index) const {
|
|
|
|
return getAttributes(Index).getStackAlignment();
|
|
|
|
}
|
|
|
|
|
|
|
|
uint64_t AttributeSet::getBitMask(unsigned Index) const {
|
|
|
|
// FIXME: Remove this.
|
|
|
|
return getAttributes(Index).getBitMask();
|
|
|
|
}
|
|
|
|
|
2012-10-16 14:01:44 +08:00
|
|
|
/// getAttributes - The attributes for the specified index are returned.
|
2012-12-31 19:51:54 +08:00
|
|
|
/// Attributes for the result are denoted with Idx = 0. Function attributes are
|
|
|
|
/// denoted with Idx = ~0.
|
2012-12-19 15:18:57 +08:00
|
|
|
Attribute AttributeSet::getAttributes(unsigned Idx) const {
|
|
|
|
if (AttrList == 0) return Attribute();
|
2012-10-16 14:01:44 +08:00
|
|
|
|
2012-12-31 08:49:59 +08:00
|
|
|
const SmallVectorImpl<AttributeWithIndex> &Attrs = AttrList->Attrs;
|
2008-03-13 01:45:29 +08:00
|
|
|
for (unsigned i = 0, e = Attrs.size(); i != e && Attrs[i].Index <= Idx; ++i)
|
|
|
|
if (Attrs[i].Index == Idx)
|
|
|
|
return Attrs[i].Attrs;
|
2012-09-21 23:26:31 +08:00
|
|
|
|
2012-12-19 15:18:57 +08:00
|
|
|
return Attribute();
|
2008-03-13 01:45:29 +08:00
|
|
|
}
|
2008-01-03 07:42:30 +08:00
|
|
|
|
2008-03-13 01:45:29 +08:00
|
|
|
/// hasAttrSomewhere - Return true if the specified attribute is set for at
|
|
|
|
/// least one parameter or for the return value.
|
2012-12-22 08:37:52 +08:00
|
|
|
bool AttributeSet::hasAttrSomewhere(Attribute::AttrKind Attr) const {
|
2008-09-26 05:00:45 +08:00
|
|
|
if (AttrList == 0) return false;
|
2012-10-10 15:36:45 +08:00
|
|
|
|
2008-09-26 05:00:45 +08:00
|
|
|
const SmallVector<AttributeWithIndex, 4> &Attrs = AttrList->Attrs;
|
2008-03-13 01:45:29 +08:00
|
|
|
for (unsigned i = 0, e = Attrs.size(); i != e; ++i)
|
2012-10-10 15:36:45 +08:00
|
|
|
if (Attrs[i].Attrs.hasAttribute(Attr))
|
2008-03-13 01:45:29 +08:00
|
|
|
return true;
|
2012-11-20 13:09:20 +08:00
|
|
|
|
2008-03-13 01:45:29 +08:00
|
|
|
return false;
|
2008-01-03 07:42:30 +08:00
|
|
|
}
|
|
|
|
|
2012-12-08 07:16:57 +08:00
|
|
|
AttributeSet AttributeSet::addAttr(LLVMContext &C, unsigned Idx,
|
2012-12-31 08:49:59 +08:00
|
|
|
Attribute Attrs) const {
|
2012-12-19 15:18:57 +08:00
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Attribute OldAttrs = getAttributes(Idx);
|
2008-02-20 07:51:49 +08:00
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|
|
#ifndef NDEBUG
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|
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// FIXME it is not obvious how this should work for alignment.
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// For now, say we can't change a known alignment.
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2012-09-21 23:26:31 +08:00
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unsigned OldAlign = OldAttrs.getAlignment();
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|
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unsigned NewAlign = Attrs.getAlignment();
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2008-02-20 20:07:57 +08:00
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assert((!OldAlign || !NewAlign || OldAlign == NewAlign) &&
|
2008-02-20 07:51:49 +08:00
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|
|
"Attempt to change alignment!");
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|
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|
#endif
|
2012-10-16 14:01:44 +08:00
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2012-10-16 04:35:56 +08:00
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AttrBuilder NewAttrs =
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AttrBuilder(OldAttrs).addAttributes(Attrs);
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|
if (NewAttrs == AttrBuilder(OldAttrs))
|
2008-03-13 01:45:29 +08:00
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|
return *this;
|
2012-10-16 14:01:44 +08:00
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2008-09-26 05:00:45 +08:00
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SmallVector<AttributeWithIndex, 8> NewAttrList;
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|
|
if (AttrList == 0)
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NewAttrList.push_back(AttributeWithIndex::get(Idx, Attrs));
|
2008-03-13 01:45:29 +08:00
|
|
|
else {
|
2008-09-26 05:00:45 +08:00
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const SmallVector<AttributeWithIndex, 4> &OldAttrList = AttrList->Attrs;
|
2008-03-13 01:45:29 +08:00
|
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unsigned i = 0, e = OldAttrList.size();
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|
// Copy attributes for arguments before this one.
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|
for (; i != e && OldAttrList[i].Index < Idx; ++i)
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NewAttrList.push_back(OldAttrList[i]);
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|
|
|
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|
// If there are attributes already at this index, merge them in.
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|
|
|
if (i != e && OldAttrList[i].Index == Idx) {
|
2012-10-14 15:35:59 +08:00
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Attrs =
|
2012-12-19 15:18:57 +08:00
|
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|
Attribute::get(C, AttrBuilder(Attrs).
|
2012-10-14 15:35:59 +08:00
|
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|
addAttributes(OldAttrList[i].Attrs));
|
2008-03-13 01:45:29 +08:00
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|
++i;
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|
}
|
2012-10-16 14:01:44 +08:00
|
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|
2008-09-26 05:00:45 +08:00
|
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|
NewAttrList.push_back(AttributeWithIndex::get(Idx, Attrs));
|
2012-10-16 14:01:44 +08:00
|
|
|
|
2008-03-13 01:45:29 +08:00
|
|
|
// Copy attributes for arguments after this one.
|
2012-10-16 14:01:44 +08:00
|
|
|
NewAttrList.insert(NewAttrList.end(),
|
2008-03-13 01:45:29 +08:00
|
|
|
OldAttrList.begin()+i, OldAttrList.end());
|
|
|
|
}
|
2012-10-16 14:01:44 +08:00
|
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|
2012-11-20 13:09:20 +08:00
|
|
|
return get(C, NewAttrList);
|
2008-01-03 07:42:30 +08:00
|
|
|
}
|
|
|
|
|
2012-12-08 07:16:57 +08:00
|
|
|
AttributeSet AttributeSet::removeAttr(LLVMContext &C, unsigned Idx,
|
2012-12-31 08:49:59 +08:00
|
|
|
Attribute Attrs) const {
|
2008-02-20 07:51:49 +08:00
|
|
|
#ifndef NDEBUG
|
|
|
|
// FIXME it is not obvious how this should work for alignment.
|
|
|
|
// For now, say we can't pass in alignment, which no current use does.
|
2012-12-19 15:18:57 +08:00
|
|
|
assert(!Attrs.hasAttribute(Attribute::Alignment) &&
|
2012-10-09 15:45:08 +08:00
|
|
|
"Attempt to exclude alignment!");
|
2008-02-20 07:51:49 +08:00
|
|
|
#endif
|
2012-12-08 07:16:57 +08:00
|
|
|
if (AttrList == 0) return AttributeSet();
|
2012-10-16 14:01:44 +08:00
|
|
|
|
2012-12-19 15:18:57 +08:00
|
|
|
Attribute OldAttrs = getAttributes(Idx);
|
2012-10-16 04:35:56 +08:00
|
|
|
AttrBuilder NewAttrs =
|
|
|
|
AttrBuilder(OldAttrs).removeAttributes(Attrs);
|
|
|
|
if (NewAttrs == AttrBuilder(OldAttrs))
|
2008-03-13 01:45:29 +08:00
|
|
|
return *this;
|
|
|
|
|
2008-09-26 05:00:45 +08:00
|
|
|
SmallVector<AttributeWithIndex, 8> NewAttrList;
|
|
|
|
const SmallVector<AttributeWithIndex, 4> &OldAttrList = AttrList->Attrs;
|
2008-03-13 01:45:29 +08:00
|
|
|
unsigned i = 0, e = OldAttrList.size();
|
2012-10-16 14:01:44 +08:00
|
|
|
|
2008-03-13 01:45:29 +08:00
|
|
|
// Copy attributes for arguments before this one.
|
|
|
|
for (; i != e && OldAttrList[i].Index < Idx; ++i)
|
|
|
|
NewAttrList.push_back(OldAttrList[i]);
|
2012-10-16 14:01:44 +08:00
|
|
|
|
2008-03-13 01:45:29 +08:00
|
|
|
// If there are attributes already at this index, merge them in.
|
|
|
|
assert(OldAttrList[i].Index == Idx && "Attribute isn't set?");
|
2012-12-19 15:18:57 +08:00
|
|
|
Attrs = Attribute::get(C, AttrBuilder(OldAttrList[i].Attrs).
|
2012-10-14 14:39:53 +08:00
|
|
|
removeAttributes(Attrs));
|
2008-03-13 01:45:29 +08:00
|
|
|
++i;
|
2012-10-14 16:54:26 +08:00
|
|
|
if (Attrs.hasAttributes()) // If any attributes left for this param, add them.
|
2008-09-26 05:00:45 +08:00
|
|
|
NewAttrList.push_back(AttributeWithIndex::get(Idx, Attrs));
|
2012-10-16 14:01:44 +08:00
|
|
|
|
2008-03-13 01:45:29 +08:00
|
|
|
// Copy attributes for arguments after this one.
|
2012-10-16 14:01:44 +08:00
|
|
|
NewAttrList.insert(NewAttrList.end(),
|
2008-03-13 01:45:29 +08:00
|
|
|
OldAttrList.begin()+i, OldAttrList.end());
|
2012-10-16 14:01:44 +08:00
|
|
|
|
2012-11-20 13:09:20 +08:00
|
|
|
return get(C, NewAttrList);
|
2008-01-03 07:42:30 +08:00
|
|
|
}
|
|
|
|
|
2012-12-08 07:16:57 +08:00
|
|
|
void AttributeSet::dump() const {
|
2010-01-05 09:29:58 +08:00
|
|
|
dbgs() << "PAL[ ";
|
2008-03-13 01:45:29 +08:00
|
|
|
for (unsigned i = 0; i < getNumSlots(); ++i) {
|
2008-09-26 05:00:45 +08:00
|
|
|
const AttributeWithIndex &PAWI = getSlot(i);
|
2012-10-14 16:54:26 +08:00
|
|
|
dbgs() << "{" << PAWI.Index << "," << PAWI.Attrs.getAsString() << "} ";
|
2008-03-13 01:45:29 +08:00
|
|
|
}
|
2012-10-16 14:01:44 +08:00
|
|
|
|
2010-01-05 09:29:58 +08:00
|
|
|
dbgs() << "]\n";
|
2008-01-07 02:27:01 +08:00
|
|
|
}
|