2008-09-25 21:00:45 +00:00
|
|
|
//===-- Attributes.cpp - Implement AttributesList -------------------------===//
|
2008-01-02 23:42:30 +00:00
|
|
|
//
|
|
|
|
// The LLVM Compiler Infrastructure
|
|
|
|
//
|
|
|
|
// This file is distributed under the University of Illinois Open Source
|
|
|
|
// License. See LICENSE.TXT for details.
|
|
|
|
//
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
//
|
2008-09-25 21:00:45 +00:00
|
|
|
// This file implements the AttributesList class and Attribute utilities.
|
2008-01-02 23:42:30 +00:00
|
|
|
//
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
2008-09-23 23:03:40 +00:00
|
|
|
#include "llvm/Attributes.h"
|
2012-09-26 21:07:29 +00:00
|
|
|
#include "LLVMContextImpl.h"
|
2008-03-12 17:45:29 +00:00
|
|
|
#include "llvm/Type.h"
|
2008-03-10 23:55:07 +00:00
|
|
|
#include "llvm/ADT/StringExtras.h"
|
2008-03-12 17:45:29 +00:00
|
|
|
#include "llvm/ADT/FoldingSet.h"
|
2010-11-29 18:16:10 +00:00
|
|
|
#include "llvm/Support/Atomic.h"
|
|
|
|
#include "llvm/Support/Mutex.h"
|
2010-01-05 01:29:58 +00:00
|
|
|
#include "llvm/Support/Debug.h"
|
2008-01-02 23:42:30 +00:00
|
|
|
#include "llvm/Support/ManagedStatic.h"
|
2009-08-23 11:37:21 +00:00
|
|
|
#include "llvm/Support/raw_ostream.h"
|
2008-01-02 23:42:30 +00:00
|
|
|
using namespace llvm;
|
|
|
|
|
2008-03-12 17:45:29 +00:00
|
|
|
//===----------------------------------------------------------------------===//
|
2012-10-08 21:47:17 +00:00
|
|
|
// Attributes Implementation
|
2008-03-12 17:45:29 +00:00
|
|
|
//===----------------------------------------------------------------------===//
|
2008-01-14 19:52:09 +00:00
|
|
|
|
2012-10-08 21:47:17 +00:00
|
|
|
Attributes::Attributes(uint64_t Val) : Attrs(Val) {}
|
|
|
|
|
2012-10-11 01:10:00 +00:00
|
|
|
Attributes::Attributes(LLVMContext &C, AttrVal Val)
|
2012-10-11 01:05:52 +00:00
|
|
|
: Attrs(Attributes::get(Attributes::Builder().addAttribute(Val)).Attrs) {}
|
|
|
|
|
2012-10-08 21:47:17 +00:00
|
|
|
Attributes::Attributes(AttributesImpl *A) : Attrs(A->Bits) {}
|
|
|
|
|
2012-10-08 23:27:46 +00:00
|
|
|
Attributes::Attributes(const Attributes &A) : Attrs(A.Attrs) {}
|
|
|
|
|
2012-10-08 22:20:14 +00:00
|
|
|
// FIXME: This is temporary until we have implemented the uniquified version of
|
|
|
|
// AttributesImpl.
|
|
|
|
Attributes Attributes::get(Attributes::Builder &B) {
|
|
|
|
return Attributes(B.Bits);
|
|
|
|
}
|
|
|
|
|
2012-10-08 21:47:17 +00:00
|
|
|
Attributes Attributes::get(LLVMContext &Context, Attributes::Builder &B) {
|
|
|
|
// If there are no attributes, return an empty Attributes class.
|
|
|
|
if (B.Bits == 0)
|
|
|
|
return Attributes();
|
|
|
|
|
|
|
|
// Otherwise, build a key to look up the existing attributes.
|
|
|
|
LLVMContextImpl *pImpl = Context.pImpl;
|
|
|
|
FoldingSetNodeID ID;
|
|
|
|
ID.AddInteger(B.Bits);
|
|
|
|
|
|
|
|
void *InsertPoint;
|
|
|
|
AttributesImpl *PA = pImpl->AttrsSet.FindNodeOrInsertPos(ID, InsertPoint);
|
|
|
|
|
|
|
|
if (!PA) {
|
|
|
|
// If we didn't find any existing attributes of the same shape then create a
|
|
|
|
// new one and insert it.
|
|
|
|
PA = new AttributesImpl(B.Bits);
|
|
|
|
pImpl->AttrsSet.InsertNode(PA, InsertPoint);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Return the AttributesList that we found or created.
|
|
|
|
return Attributes(PA);
|
|
|
|
}
|
|
|
|
|
2012-10-09 07:45:08 +00:00
|
|
|
bool Attributes::hasAttribute(AttrVal Val) const {
|
|
|
|
return Attrs.hasAttribute(Val);
|
2012-10-05 06:44:41 +00:00
|
|
|
}
|
|
|
|
|
2012-10-09 09:11:20 +00:00
|
|
|
bool Attributes::hasAttributes(const Attributes &A) const {
|
|
|
|
return Attrs.hasAttributes(A);
|
|
|
|
}
|
|
|
|
|
2012-10-05 06:44:41 +00:00
|
|
|
/// This returns the alignment field of an attribute as a byte alignment value.
|
|
|
|
unsigned Attributes::getAlignment() const {
|
2012-10-09 20:56:48 +00:00
|
|
|
if (!hasAttribute(Attributes::Alignment))
|
|
|
|
return 0;
|
|
|
|
return 1U << ((Attrs.getAlignment() >> 16) - 1);
|
2012-10-05 06:44:41 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/// This returns the stack alignment field of an attribute as a byte alignment
|
|
|
|
/// value.
|
|
|
|
unsigned Attributes::getStackAlignment() const {
|
2012-10-09 20:56:48 +00:00
|
|
|
if (!hasAttribute(Attributes::StackAlignment))
|
|
|
|
return 0;
|
|
|
|
return 1U << ((Attrs.getStackAlignment() >> 26) - 1);
|
2012-10-05 06:44:41 +00:00
|
|
|
}
|
|
|
|
|
2012-10-07 08:55:05 +00:00
|
|
|
bool Attributes::isEmptyOrSingleton() const {
|
2012-10-08 21:47:17 +00:00
|
|
|
return Attrs.isEmptyOrSingleton();
|
2012-10-07 08:55:05 +00:00
|
|
|
}
|
|
|
|
|
2012-10-08 21:47:17 +00:00
|
|
|
Attributes Attributes::operator | (const Attributes &A) const {
|
|
|
|
return Attributes(Raw() | A.Raw());
|
2012-10-07 08:55:05 +00:00
|
|
|
}
|
2012-10-08 21:47:17 +00:00
|
|
|
Attributes Attributes::operator & (const Attributes &A) const {
|
|
|
|
return Attributes(Raw() & A.Raw());
|
2012-10-07 08:55:05 +00:00
|
|
|
}
|
2012-10-08 21:47:17 +00:00
|
|
|
Attributes Attributes::operator ^ (const Attributes &A) const {
|
|
|
|
return Attributes(Raw() ^ A.Raw());
|
2012-10-07 08:55:05 +00:00
|
|
|
}
|
2012-10-08 21:47:17 +00:00
|
|
|
Attributes &Attributes::operator |= (const Attributes &A) {
|
|
|
|
Attrs.Bits |= A.Raw();
|
2012-10-07 08:55:05 +00:00
|
|
|
return *this;
|
|
|
|
}
|
2012-10-08 21:47:17 +00:00
|
|
|
Attributes &Attributes::operator &= (const Attributes &A) {
|
|
|
|
Attrs.Bits &= A.Raw();
|
2012-10-07 08:55:05 +00:00
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
Attributes Attributes::operator ~ () const {
|
2012-10-08 21:47:17 +00:00
|
|
|
return Attributes(~Raw());
|
|
|
|
}
|
|
|
|
|
|
|
|
uint64_t Attributes::Raw() const {
|
|
|
|
return Attrs.Bits;
|
2012-10-07 08:55:05 +00:00
|
|
|
}
|
|
|
|
|
2012-10-05 06:44:41 +00:00
|
|
|
Attributes Attributes::typeIncompatible(Type *Ty) {
|
|
|
|
Attributes::Builder Incompatible;
|
|
|
|
|
2012-10-09 19:01:18 +00:00
|
|
|
if (!Ty->isIntegerTy())
|
2012-10-05 06:44:41 +00:00
|
|
|
// Attributes that only apply to integers.
|
2012-10-09 19:01:18 +00:00
|
|
|
Incompatible.addAttribute(Attributes::SExt)
|
|
|
|
.addAttribute(Attributes::ZExt);
|
2012-10-05 06:44:41 +00:00
|
|
|
|
2012-10-09 19:01:18 +00:00
|
|
|
if (!Ty->isPointerTy())
|
2012-10-05 06:44:41 +00:00
|
|
|
// Attributes that only apply to pointers.
|
2012-10-09 19:01:18 +00:00
|
|
|
Incompatible.addAttribute(Attributes::ByVal)
|
|
|
|
.addAttribute(Attributes::Nest)
|
|
|
|
.addAttribute(Attributes::NoAlias)
|
|
|
|
.addAttribute(Attributes::NoCapture)
|
|
|
|
.addAttribute(Attributes::StructRet);
|
2012-10-05 06:44:41 +00:00
|
|
|
|
|
|
|
return Attributes(Incompatible.Bits); // FIXME: Use Attributes::get().
|
|
|
|
}
|
|
|
|
|
2012-09-20 14:44:42 +00:00
|
|
|
std::string Attributes::getAsString() const {
|
2008-01-02 23:42:30 +00:00
|
|
|
std::string Result;
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::ZExt))
|
2008-01-02 23:42:30 +00:00
|
|
|
Result += "zeroext ";
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::SExt))
|
2008-01-02 23:42:30 +00:00
|
|
|
Result += "signext ";
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::NoReturn))
|
2008-01-02 23:42:30 +00:00
|
|
|
Result += "noreturn ";
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::NoUnwind))
|
2008-01-02 23:42:30 +00:00
|
|
|
Result += "nounwind ";
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::UWTable))
|
2011-05-25 03:44:17 +00:00
|
|
|
Result += "uwtable ";
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::ReturnsTwice))
|
2011-10-03 14:45:37 +00:00
|
|
|
Result += "returns_twice ";
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::InReg))
|
2008-01-02 23:42:30 +00:00
|
|
|
Result += "inreg ";
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::NoAlias))
|
2008-01-02 23:42:30 +00:00
|
|
|
Result += "noalias ";
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::NoCapture))
|
2008-12-19 09:38:31 +00:00
|
|
|
Result += "nocapture ";
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::StructRet))
|
2009-07-17 18:07:26 +00:00
|
|
|
Result += "sret ";
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::ByVal))
|
2008-01-02 23:42:30 +00:00
|
|
|
Result += "byval ";
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::Nest))
|
2008-01-02 23:42:30 +00:00
|
|
|
Result += "nest ";
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::ReadNone))
|
2008-01-02 23:42:30 +00:00
|
|
|
Result += "readnone ";
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::ReadOnly))
|
2008-01-02 23:42:30 +00:00
|
|
|
Result += "readonly ";
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::OptimizeForSize))
|
2008-09-26 22:53:05 +00:00
|
|
|
Result += "optsize ";
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::NoInline))
|
2008-09-26 22:53:05 +00:00
|
|
|
Result += "noinline ";
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::InlineHint))
|
2010-02-06 01:16:28 +00:00
|
|
|
Result += "inlinehint ";
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::AlwaysInline))
|
2008-09-26 22:53:05 +00:00
|
|
|
Result += "alwaysinline ";
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::StackProtect))
|
2008-11-13 01:02:14 +00:00
|
|
|
Result += "ssp ";
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::StackProtectReq))
|
2008-11-13 01:02:14 +00:00
|
|
|
Result += "sspreq ";
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::NoRedZone))
|
2009-06-04 22:05:33 +00:00
|
|
|
Result += "noredzone ";
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::NoImplicitFloat))
|
2009-06-05 21:57:13 +00:00
|
|
|
Result += "noimplicitfloat ";
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::Naked))
|
2009-07-17 18:07:26 +00:00
|
|
|
Result += "naked ";
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::NonLazyBind))
|
2011-06-15 20:36:13 +00:00
|
|
|
Result += "nonlazybind ";
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::AddressSafety))
|
2012-01-20 17:56:17 +00:00
|
|
|
Result += "address_safety ";
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::StackAlignment)) {
|
2010-02-12 00:31:15 +00:00
|
|
|
Result += "alignstack(";
|
2012-09-21 15:26:31 +00:00
|
|
|
Result += utostr(getStackAlignment());
|
2010-02-12 00:31:15 +00:00
|
|
|
Result += ") ";
|
|
|
|
}
|
2012-10-09 07:45:08 +00:00
|
|
|
if (hasAttribute(Attributes::Alignment)) {
|
2008-02-19 23:51:49 +00:00
|
|
|
Result += "align ";
|
2012-09-21 15:26:31 +00:00
|
|
|
Result += utostr(getAlignment());
|
2008-02-19 23:51:49 +00:00
|
|
|
Result += " ";
|
|
|
|
}
|
2008-08-05 15:51:44 +00:00
|
|
|
// Trim the trailing space.
|
2008-12-19 09:38:31 +00:00
|
|
|
assert(!Result.empty() && "Unknown attribute!");
|
2008-08-05 15:51:44 +00:00
|
|
|
Result.erase(Result.end()-1);
|
2008-01-02 23:42:30 +00:00
|
|
|
return Result;
|
|
|
|
}
|
|
|
|
|
2012-10-05 06:44:41 +00:00
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// Attributes::Builder Implementation
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
2012-10-09 19:01:18 +00:00
|
|
|
Attributes::Builder &Attributes::Builder::
|
|
|
|
addAttribute(Attributes::AttrVal Val) {
|
2012-10-09 09:11:20 +00:00
|
|
|
Bits |= AttributesImpl::getAttrMask(Val);
|
2012-10-09 19:01:18 +00:00
|
|
|
return *this;
|
2012-10-05 06:44:41 +00:00
|
|
|
}
|
|
|
|
|
2012-10-14 04:10:01 +00:00
|
|
|
Attributes::Builder &Attributes::Builder::addRawValue(uint64_t Val) {
|
|
|
|
Bits |= Val;
|
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
2012-10-14 03:58:29 +00:00
|
|
|
Attributes::Builder &Attributes::Builder::addAlignmentAttr(unsigned Align) {
|
|
|
|
if (Align == 0) return *this;
|
2012-10-05 06:44:41 +00:00
|
|
|
assert(isPowerOf2_32(Align) && "Alignment must be a power of two.");
|
|
|
|
assert(Align <= 0x40000000 && "Alignment too large.");
|
|
|
|
Bits |= (Log2_32(Align) + 1) << 16;
|
2012-10-14 03:58:29 +00:00
|
|
|
return *this;
|
2012-10-05 06:44:41 +00:00
|
|
|
}
|
2012-10-14 03:58:29 +00:00
|
|
|
Attributes::Builder &Attributes::Builder::addStackAlignmentAttr(unsigned Align){
|
2012-10-05 06:44:41 +00:00
|
|
|
// Default alignment, allow the target to define how to align it.
|
2012-10-14 03:58:29 +00:00
|
|
|
if (Align == 0) return *this;
|
2012-10-05 06:44:41 +00:00
|
|
|
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 03:58:29 +00:00
|
|
|
return *this;
|
2008-01-02 23:42:30 +00:00
|
|
|
}
|
|
|
|
|
2012-10-09 19:01:18 +00:00
|
|
|
Attributes::Builder &Attributes::Builder::
|
|
|
|
removeAttribute(Attributes::AttrVal Val) {
|
2012-10-09 09:11:20 +00:00
|
|
|
Bits &= ~AttributesImpl::getAttrMask(Val);
|
2012-10-09 19:01:18 +00:00
|
|
|
return *this;
|
2012-10-09 09:11:20 +00:00
|
|
|
}
|
|
|
|
|
2012-10-09 00:01:21 +00:00
|
|
|
void Attributes::Builder::removeAttributes(const Attributes &A) {
|
|
|
|
Bits &= ~A.Raw();
|
|
|
|
}
|
|
|
|
|
2012-10-10 07:36:45 +00:00
|
|
|
bool Attributes::Builder::hasAttribute(Attributes::AttrVal A) const {
|
|
|
|
return Bits & AttributesImpl::getAttrMask(A);
|
|
|
|
}
|
|
|
|
|
2012-10-08 23:27:46 +00:00
|
|
|
bool Attributes::Builder::hasAttributes() const {
|
|
|
|
return Bits != 0;
|
|
|
|
}
|
2012-10-09 00:01:21 +00:00
|
|
|
bool Attributes::Builder::hasAttributes(const Attributes &A) const {
|
|
|
|
return Bits & A.Raw();
|
|
|
|
}
|
2012-10-08 23:27:46 +00:00
|
|
|
bool Attributes::Builder::hasAlignmentAttr() const {
|
2012-10-09 20:28:54 +00:00
|
|
|
return Bits & AttributesImpl::getAttrMask(Attributes::Alignment);
|
2012-10-08 23:27:46 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
uint64_t Attributes::Builder::getAlignment() const {
|
2012-10-09 20:56:48 +00:00
|
|
|
if (!hasAlignmentAttr())
|
|
|
|
return 0;
|
2012-10-09 20:28:54 +00:00
|
|
|
return 1U <<
|
|
|
|
(((Bits & AttributesImpl::getAttrMask(Attributes::Alignment)) >> 16) - 1);
|
2012-10-08 23:27:46 +00:00
|
|
|
}
|
|
|
|
|
2012-10-10 07:36:45 +00:00
|
|
|
uint64_t Attributes::Builder::getStackAlignment() const {
|
|
|
|
if (!hasAlignmentAttr())
|
|
|
|
return 0;
|
|
|
|
return 1U <<
|
|
|
|
(((Bits & AttributesImpl::getAttrMask(Attributes::StackAlignment))>>26)-1);
|
|
|
|
}
|
|
|
|
|
2012-09-26 21:07:29 +00:00
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// AttributeImpl Definition
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
2012-10-09 09:11:20 +00:00
|
|
|
uint64_t AttributesImpl::getAttrMask(uint64_t Val) {
|
2012-10-09 07:45:08 +00:00
|
|
|
switch (Val) {
|
|
|
|
case Attributes::None: return 0;
|
|
|
|
case Attributes::ZExt: return 1 << 0;
|
|
|
|
case Attributes::SExt: return 1 << 1;
|
|
|
|
case Attributes::NoReturn: return 1 << 2;
|
|
|
|
case Attributes::InReg: return 1 << 3;
|
|
|
|
case Attributes::StructRet: return 1 << 4;
|
|
|
|
case Attributes::NoUnwind: return 1 << 5;
|
|
|
|
case Attributes::NoAlias: return 1 << 6;
|
|
|
|
case Attributes::ByVal: return 1 << 7;
|
|
|
|
case Attributes::Nest: return 1 << 8;
|
|
|
|
case Attributes::ReadNone: return 1 << 9;
|
|
|
|
case Attributes::ReadOnly: return 1 << 10;
|
|
|
|
case Attributes::NoInline: return 1 << 11;
|
|
|
|
case Attributes::AlwaysInline: return 1 << 12;
|
|
|
|
case Attributes::OptimizeForSize: return 1 << 13;
|
|
|
|
case Attributes::StackProtect: return 1 << 14;
|
|
|
|
case Attributes::StackProtectReq: return 1 << 15;
|
|
|
|
case Attributes::Alignment: return 31 << 16;
|
|
|
|
case Attributes::NoCapture: return 1 << 21;
|
|
|
|
case Attributes::NoRedZone: return 1 << 22;
|
|
|
|
case Attributes::NoImplicitFloat: return 1 << 23;
|
|
|
|
case Attributes::Naked: return 1 << 24;
|
|
|
|
case Attributes::InlineHint: return 1 << 25;
|
|
|
|
case Attributes::StackAlignment: return 7 << 26;
|
|
|
|
case Attributes::ReturnsTwice: return 1 << 29;
|
|
|
|
case Attributes::UWTable: return 1 << 30;
|
|
|
|
case Attributes::NonLazyBind: return 1U << 31;
|
|
|
|
case Attributes::AddressSafety: return 1ULL << 32;
|
|
|
|
}
|
|
|
|
llvm_unreachable("Unsupported attribute type");
|
|
|
|
}
|
|
|
|
|
2012-10-08 21:47:17 +00:00
|
|
|
bool AttributesImpl::hasAttribute(uint64_t A) const {
|
2012-10-09 07:45:08 +00:00
|
|
|
return (Bits & getAttrMask(A)) != 0;
|
2012-10-08 21:47:17 +00:00
|
|
|
}
|
2012-09-26 21:07:29 +00:00
|
|
|
|
2012-10-08 21:47:17 +00:00
|
|
|
bool AttributesImpl::hasAttributes() const {
|
|
|
|
return Bits != 0;
|
|
|
|
}
|
2012-09-26 21:07:29 +00:00
|
|
|
|
2012-10-08 21:47:17 +00:00
|
|
|
bool AttributesImpl::hasAttributes(const Attributes &A) const {
|
|
|
|
return Bits & A.Raw(); // FIXME: Raw() won't work here in the future.
|
|
|
|
}
|
2012-09-26 21:07:29 +00:00
|
|
|
|
2012-10-08 21:47:17 +00:00
|
|
|
uint64_t AttributesImpl::getAlignment() const {
|
2012-10-09 20:56:48 +00:00
|
|
|
return Bits & getAttrMask(Attributes::Alignment);
|
2012-10-08 21:47:17 +00:00
|
|
|
}
|
2012-09-26 21:07:29 +00:00
|
|
|
|
2012-10-08 21:47:17 +00:00
|
|
|
uint64_t AttributesImpl::getStackAlignment() const {
|
2012-10-09 20:56:48 +00:00
|
|
|
return Bits & getAttrMask(Attributes::StackAlignment);
|
2012-10-08 21:47:17 +00:00
|
|
|
}
|
2012-09-26 21:07:29 +00:00
|
|
|
|
2012-10-08 21:47:17 +00:00
|
|
|
bool AttributesImpl::isEmptyOrSingleton() const {
|
|
|
|
return (Bits & (Bits - 1)) == 0;
|
2012-09-26 21:07:29 +00:00
|
|
|
}
|
|
|
|
|
2008-03-12 17:45:29 +00:00
|
|
|
//===----------------------------------------------------------------------===//
|
2008-09-24 00:29:49 +00:00
|
|
|
// AttributeListImpl Definition
|
2008-03-12 17:45:29 +00:00
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
2010-11-18 18:59:13 +00:00
|
|
|
namespace llvm {
|
|
|
|
class AttributeListImpl;
|
|
|
|
}
|
|
|
|
|
|
|
|
static ManagedStatic<FoldingSet<AttributeListImpl> > AttributesLists;
|
2010-11-09 00:27:03 +00:00
|
|
|
|
2008-03-12 17:45:29 +00:00
|
|
|
namespace llvm {
|
2010-11-09 00:27:03 +00:00
|
|
|
static ManagedStatic<sys::SmartMutex<true> > ALMutex;
|
|
|
|
|
2008-09-24 00:29:49 +00:00
|
|
|
class AttributeListImpl : public FoldingSetNode {
|
2009-08-20 19:03:20 +00:00
|
|
|
sys::cas_flag RefCount;
|
2008-03-12 17:45:29 +00:00
|
|
|
|
2008-09-25 21:00:45 +00:00
|
|
|
// AttributesList is uniqued, these should not be publicly available.
|
2012-09-18 02:01:41 +00:00
|
|
|
void operator=(const AttributeListImpl &) LLVM_DELETED_FUNCTION;
|
|
|
|
AttributeListImpl(const AttributeListImpl &) LLVM_DELETED_FUNCTION;
|
2008-09-24 00:29:49 +00:00
|
|
|
~AttributeListImpl(); // Private implementation
|
2008-03-12 17:45:29 +00:00
|
|
|
public:
|
2008-09-25 21:00:45 +00:00
|
|
|
SmallVector<AttributeWithIndex, 4> Attrs;
|
2008-03-12 17:45:29 +00:00
|
|
|
|
2012-05-28 01:47:44 +00:00
|
|
|
AttributeListImpl(ArrayRef<AttributeWithIndex> attrs)
|
|
|
|
: Attrs(attrs.begin(), attrs.end()) {
|
2008-03-12 17:45:29 +00:00
|
|
|
RefCount = 0;
|
|
|
|
}
|
|
|
|
|
2010-11-09 00:27:03 +00:00
|
|
|
void AddRef() {
|
|
|
|
sys::SmartScopedLock<true> Lock(*ALMutex);
|
|
|
|
++RefCount;
|
|
|
|
}
|
2009-08-20 19:03:20 +00:00
|
|
|
void DropRef() {
|
2010-11-09 00:27:03 +00:00
|
|
|
sys::SmartScopedLock<true> Lock(*ALMutex);
|
2010-11-18 18:59:13 +00:00
|
|
|
if (!AttributesLists.isConstructed())
|
|
|
|
return;
|
2010-11-09 17:47:10 +00:00
|
|
|
sys::cas_flag new_val = --RefCount;
|
2010-11-09 17:46:38 +00:00
|
|
|
if (new_val == 0)
|
2010-11-09 00:27:03 +00:00
|
|
|
delete this;
|
2009-08-20 19:03:20 +00:00
|
|
|
}
|
2008-03-12 17:45:29 +00:00
|
|
|
|
|
|
|
void Profile(FoldingSetNodeID &ID) const {
|
2012-05-28 01:47:44 +00:00
|
|
|
Profile(ID, Attrs);
|
2008-03-12 17:45:29 +00:00
|
|
|
}
|
2012-05-28 01:47:44 +00:00
|
|
|
static void Profile(FoldingSetNodeID &ID, ArrayRef<AttributeWithIndex> Attrs){
|
|
|
|
for (unsigned i = 0, e = Attrs.size(); i != e; ++i) {
|
|
|
|
ID.AddInteger(Attrs[i].Attrs.Raw());
|
|
|
|
ID.AddInteger(Attrs[i].Index);
|
2012-01-20 17:56:17 +00:00
|
|
|
}
|
2008-03-12 17:45:29 +00:00
|
|
|
}
|
|
|
|
};
|
|
|
|
}
|
2008-01-02 23:42:30 +00:00
|
|
|
|
2008-09-24 00:29:49 +00:00
|
|
|
AttributeListImpl::~AttributeListImpl() {
|
2010-11-09 00:27:03 +00:00
|
|
|
// NOTE: Lock must be acquired by caller.
|
2008-09-25 21:00:45 +00:00
|
|
|
AttributesLists->RemoveNode(this);
|
2008-03-12 17:45:29 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2012-05-28 01:47:44 +00:00
|
|
|
AttrListPtr AttrListPtr::get(ArrayRef<AttributeWithIndex> Attrs) {
|
2008-09-25 21:00:45 +00:00
|
|
|
// If there are no attributes then return a null AttributesList pointer.
|
2012-05-28 01:47:44 +00:00
|
|
|
if (Attrs.empty())
|
2008-09-25 21:00:45 +00:00
|
|
|
return AttrListPtr();
|
2008-03-12 17:45:29 +00:00
|
|
|
|
2008-01-02 23:42:30 +00:00
|
|
|
#ifndef NDEBUG
|
2012-05-28 01:47:44 +00:00
|
|
|
for (unsigned i = 0, e = Attrs.size(); i != e; ++i) {
|
2012-09-21 15:26:31 +00:00
|
|
|
assert(Attrs[i].Attrs.hasAttributes() &&
|
2008-09-25 21:00:45 +00:00
|
|
|
"Pointless attribute!");
|
2008-03-12 17:45:29 +00:00
|
|
|
assert((!i || Attrs[i-1].Index < Attrs[i].Index) &&
|
2008-09-25 21:00:45 +00:00
|
|
|
"Misordered AttributesList!");
|
2008-01-02 23:42:30 +00:00
|
|
|
}
|
|
|
|
#endif
|
2008-03-12 17:45:29 +00:00
|
|
|
|
2008-01-02 23:42:30 +00:00
|
|
|
// Otherwise, build a key to look up the existing attributes.
|
|
|
|
FoldingSetNodeID ID;
|
2012-05-28 01:47:44 +00:00
|
|
|
AttributeListImpl::Profile(ID, Attrs);
|
2008-01-02 23:42:30 +00:00
|
|
|
void *InsertPos;
|
2009-08-17 17:10:58 +00:00
|
|
|
|
|
|
|
sys::SmartScopedLock<true> Lock(*ALMutex);
|
|
|
|
|
2008-09-24 00:29:49 +00:00
|
|
|
AttributeListImpl *PAL =
|
2008-09-25 21:00:45 +00:00
|
|
|
AttributesLists->FindNodeOrInsertPos(ID, InsertPos);
|
2008-03-12 17:45:29 +00:00
|
|
|
|
2008-01-02 23:42:30 +00:00
|
|
|
// If we didn't find any existing attributes of the same shape then
|
|
|
|
// create a new one and insert it.
|
|
|
|
if (!PAL) {
|
2012-05-28 01:47:44 +00:00
|
|
|
PAL = new AttributeListImpl(Attrs);
|
2008-09-25 21:00:45 +00:00
|
|
|
AttributesLists->InsertNode(PAL, InsertPos);
|
2008-01-02 23:42:30 +00:00
|
|
|
}
|
2008-03-12 17:45:29 +00:00
|
|
|
|
2008-09-25 21:00:45 +00:00
|
|
|
// Return the AttributesList that we found or created.
|
|
|
|
return AttrListPtr(PAL);
|
2008-01-02 23:42:30 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2008-03-12 17:45:29 +00:00
|
|
|
//===----------------------------------------------------------------------===//
|
2008-09-25 21:00:45 +00:00
|
|
|
// AttrListPtr Method Implementations
|
2008-03-12 17:45:29 +00:00
|
|
|
//===----------------------------------------------------------------------===//
|
2008-01-02 23:42:30 +00:00
|
|
|
|
2008-09-25 21:00:45 +00:00
|
|
|
AttrListPtr::AttrListPtr(AttributeListImpl *LI) : AttrList(LI) {
|
2008-03-12 17:45:29 +00:00
|
|
|
if (LI) LI->AddRef();
|
|
|
|
}
|
2008-01-02 23:42:30 +00:00
|
|
|
|
2008-09-25 21:00:45 +00:00
|
|
|
AttrListPtr::AttrListPtr(const AttrListPtr &P) : AttrList(P.AttrList) {
|
|
|
|
if (AttrList) AttrList->AddRef();
|
2008-03-12 17:45:29 +00:00
|
|
|
}
|
|
|
|
|
2008-09-25 21:00:45 +00:00
|
|
|
const AttrListPtr &AttrListPtr::operator=(const AttrListPtr &RHS) {
|
2010-09-16 00:27:35 +00:00
|
|
|
sys::SmartScopedLock<true> Lock(*ALMutex);
|
2008-09-25 21:00:45 +00:00
|
|
|
if (AttrList == RHS.AttrList) return *this;
|
|
|
|
if (AttrList) AttrList->DropRef();
|
|
|
|
AttrList = RHS.AttrList;
|
|
|
|
if (AttrList) AttrList->AddRef();
|
2008-03-12 17:45:29 +00:00
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
2008-09-25 21:00:45 +00:00
|
|
|
AttrListPtr::~AttrListPtr() {
|
|
|
|
if (AttrList) AttrList->DropRef();
|
2008-03-12 17:45:29 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/// getNumSlots - Return the number of slots used in this attribute list.
|
|
|
|
/// This is the number of arguments that have an attribute set on them
|
|
|
|
/// (including the function itself).
|
2008-09-25 21:00:45 +00:00
|
|
|
unsigned AttrListPtr::getNumSlots() const {
|
|
|
|
return AttrList ? AttrList->Attrs.size() : 0;
|
2008-03-12 17:45:29 +00:00
|
|
|
}
|
2008-01-02 23:42:30 +00:00
|
|
|
|
2008-09-25 21:00:45 +00:00
|
|
|
/// getSlot - Return the AttributeWithIndex at the specified slot. This
|
|
|
|
/// holds a number plus a set of attributes.
|
|
|
|
const AttributeWithIndex &AttrListPtr::getSlot(unsigned Slot) const {
|
|
|
|
assert(AttrList && Slot < AttrList->Attrs.size() && "Slot # out of range!");
|
|
|
|
return AttrList->Attrs[Slot];
|
2008-03-12 17:45:29 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2008-09-25 21:00:45 +00:00
|
|
|
/// getAttributes - The attributes for the specified index are
|
|
|
|
/// returned. Attributes for the result are denoted with Idx = 0.
|
2008-09-23 22:35:17 +00:00
|
|
|
/// Function notes are denoted with idx = ~0.
|
2008-09-25 21:00:45 +00:00
|
|
|
Attributes AttrListPtr::getAttributes(unsigned Idx) const {
|
2012-09-21 15:26:31 +00:00
|
|
|
if (AttrList == 0) return Attributes();
|
2008-03-12 17:45:29 +00:00
|
|
|
|
2008-09-25 21:00:45 +00:00
|
|
|
const SmallVector<AttributeWithIndex, 4> &Attrs = AttrList->Attrs;
|
2008-03-12 17:45:29 +00:00
|
|
|
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 15:26:31 +00:00
|
|
|
|
|
|
|
return Attributes();
|
2008-03-12 17:45:29 +00:00
|
|
|
}
|
2008-01-02 23:42:30 +00:00
|
|
|
|
2008-03-12 17:45:29 +00:00
|
|
|
/// hasAttrSomewhere - Return true if the specified attribute is set for at
|
|
|
|
/// least one parameter or for the return value.
|
2012-10-10 07:36:45 +00:00
|
|
|
bool AttrListPtr::hasAttrSomewhere(Attributes::AttrVal Attr) const {
|
2008-09-25 21:00:45 +00:00
|
|
|
if (AttrList == 0) return false;
|
2012-10-10 07:36:45 +00:00
|
|
|
|
2008-09-25 21:00:45 +00:00
|
|
|
const SmallVector<AttributeWithIndex, 4> &Attrs = AttrList->Attrs;
|
2008-03-12 17:45:29 +00:00
|
|
|
for (unsigned i = 0, e = Attrs.size(); i != e; ++i)
|
2012-10-10 07:36:45 +00:00
|
|
|
if (Attrs[i].Attrs.hasAttribute(Attr))
|
2008-03-12 17:45:29 +00:00
|
|
|
return true;
|
|
|
|
return false;
|
2008-01-02 23:42:30 +00:00
|
|
|
}
|
|
|
|
|
2012-10-09 00:01:21 +00:00
|
|
|
unsigned AttrListPtr::getNumAttrs() const {
|
|
|
|
return AttrList ? AttrList->Attrs.size() : 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
Attributes &AttrListPtr::getAttributesAtIndex(unsigned i) const {
|
|
|
|
assert(AttrList && "Trying to get an attribute from an empty list!");
|
|
|
|
assert(i < AttrList->Attrs.size() && "Index out of range!");
|
|
|
|
return AttrList->Attrs[i].Attrs;
|
|
|
|
}
|
2008-03-12 17:45:29 +00:00
|
|
|
|
2008-09-25 21:00:45 +00:00
|
|
|
AttrListPtr AttrListPtr::addAttr(unsigned Idx, Attributes Attrs) const {
|
|
|
|
Attributes OldAttrs = getAttributes(Idx);
|
2008-02-19 23:51:49 +00:00
|
|
|
#ifndef NDEBUG
|
|
|
|
// FIXME it is not obvious how this should work for alignment.
|
|
|
|
// For now, say we can't change a known alignment.
|
2012-09-21 15:26:31 +00:00
|
|
|
unsigned OldAlign = OldAttrs.getAlignment();
|
|
|
|
unsigned NewAlign = Attrs.getAlignment();
|
2008-02-20 12:07:57 +00:00
|
|
|
assert((!OldAlign || !NewAlign || OldAlign == NewAlign) &&
|
2008-02-19 23:51:49 +00:00
|
|
|
"Attempt to change alignment!");
|
|
|
|
#endif
|
2008-03-12 17:45:29 +00:00
|
|
|
|
2008-09-23 23:03:40 +00:00
|
|
|
Attributes NewAttrs = OldAttrs | Attrs;
|
2008-01-02 23:42:30 +00:00
|
|
|
if (NewAttrs == OldAttrs)
|
2008-03-12 17:45:29 +00:00
|
|
|
return *this;
|
|
|
|
|
2008-09-25 21:00:45 +00:00
|
|
|
SmallVector<AttributeWithIndex, 8> NewAttrList;
|
|
|
|
if (AttrList == 0)
|
|
|
|
NewAttrList.push_back(AttributeWithIndex::get(Idx, Attrs));
|
2008-03-12 17:45:29 +00:00
|
|
|
else {
|
2008-09-25 21:00:45 +00:00
|
|
|
const SmallVector<AttributeWithIndex, 4> &OldAttrList = AttrList->Attrs;
|
2008-03-12 17:45:29 +00:00
|
|
|
unsigned i = 0, e = OldAttrList.size();
|
|
|
|
// Copy attributes for arguments before this one.
|
|
|
|
for (; i != e && OldAttrList[i].Index < Idx; ++i)
|
|
|
|
NewAttrList.push_back(OldAttrList[i]);
|
|
|
|
|
|
|
|
// If there are attributes already at this index, merge them in.
|
|
|
|
if (i != e && OldAttrList[i].Index == Idx) {
|
|
|
|
Attrs |= OldAttrList[i].Attrs;
|
|
|
|
++i;
|
|
|
|
}
|
|
|
|
|
2008-09-25 21:00:45 +00:00
|
|
|
NewAttrList.push_back(AttributeWithIndex::get(Idx, Attrs));
|
2008-03-12 17:45:29 +00:00
|
|
|
|
|
|
|
// Copy attributes for arguments after this one.
|
|
|
|
NewAttrList.insert(NewAttrList.end(),
|
|
|
|
OldAttrList.begin()+i, OldAttrList.end());
|
|
|
|
}
|
|
|
|
|
2012-05-28 01:47:44 +00:00
|
|
|
return get(NewAttrList);
|
2008-01-02 23:42:30 +00:00
|
|
|
}
|
|
|
|
|
2008-09-25 21:00:45 +00:00
|
|
|
AttrListPtr AttrListPtr::removeAttr(unsigned Idx, Attributes Attrs) const {
|
2008-02-19 23:51:49 +00:00
|
|
|
#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.
|
2012-10-09 07:45:08 +00:00
|
|
|
assert(!Attrs.hasAttribute(Attributes::Alignment) &&
|
|
|
|
"Attempt to exclude alignment!");
|
2008-02-19 23:51:49 +00:00
|
|
|
#endif
|
2008-09-25 21:00:45 +00:00
|
|
|
if (AttrList == 0) return AttrListPtr();
|
2008-03-12 17:45:29 +00:00
|
|
|
|
2008-09-25 21:00:45 +00:00
|
|
|
Attributes OldAttrs = getAttributes(Idx);
|
2008-09-23 23:03:40 +00:00
|
|
|
Attributes NewAttrs = OldAttrs & ~Attrs;
|
2008-01-02 23:42:30 +00:00
|
|
|
if (NewAttrs == OldAttrs)
|
2008-03-12 17:45:29 +00:00
|
|
|
return *this;
|
|
|
|
|
2008-09-25 21:00:45 +00:00
|
|
|
SmallVector<AttributeWithIndex, 8> NewAttrList;
|
|
|
|
const SmallVector<AttributeWithIndex, 4> &OldAttrList = AttrList->Attrs;
|
2008-03-12 17:45:29 +00:00
|
|
|
unsigned i = 0, e = OldAttrList.size();
|
|
|
|
|
|
|
|
// Copy attributes for arguments before this one.
|
|
|
|
for (; i != e && OldAttrList[i].Index < Idx; ++i)
|
|
|
|
NewAttrList.push_back(OldAttrList[i]);
|
|
|
|
|
|
|
|
// If there are attributes already at this index, merge them in.
|
|
|
|
assert(OldAttrList[i].Index == Idx && "Attribute isn't set?");
|
|
|
|
Attrs = OldAttrList[i].Attrs & ~Attrs;
|
|
|
|
++i;
|
|
|
|
if (Attrs) // If any attributes left for this parameter, add them.
|
2008-09-25 21:00:45 +00:00
|
|
|
NewAttrList.push_back(AttributeWithIndex::get(Idx, Attrs));
|
2008-03-12 17:45:29 +00:00
|
|
|
|
|
|
|
// Copy attributes for arguments after this one.
|
|
|
|
NewAttrList.insert(NewAttrList.end(),
|
|
|
|
OldAttrList.begin()+i, OldAttrList.end());
|
|
|
|
|
2012-05-28 01:47:44 +00:00
|
|
|
return get(NewAttrList);
|
2008-01-02 23:42:30 +00:00
|
|
|
}
|
|
|
|
|
2008-09-25 21:00:45 +00:00
|
|
|
void AttrListPtr::dump() const {
|
2010-01-05 01:29:58 +00:00
|
|
|
dbgs() << "PAL[ ";
|
2008-03-12 17:45:29 +00:00
|
|
|
for (unsigned i = 0; i < getNumSlots(); ++i) {
|
2008-09-25 21:00:45 +00:00
|
|
|
const AttributeWithIndex &PAWI = getSlot(i);
|
2010-01-05 01:29:58 +00:00
|
|
|
dbgs() << "{" << PAWI.Index << "," << PAWI.Attrs << "} ";
|
2008-03-12 17:45:29 +00:00
|
|
|
}
|
|
|
|
|
2010-01-05 01:29:58 +00:00
|
|
|
dbgs() << "]\n";
|
2008-01-06 18:27:01 +00:00
|
|
|
}
|