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https://github.com/c64scene-ar/llvm-6502.git
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bb5f6229f4
Add MSBuiltin which is similar in vein to GCCBuiltin. This allows for adding intrinsics for Microsoft compatibility to individual instructions. This is needed to permit the creation of ARM specific MSVC extensions. This is not currently in use, and requires an associated change in clang to enable use of the intrinsics defined by this new class. This merely sets the LLVM portion of the infrastructure in place to permit the use of this functionality. A separate set of changes will enable the new intrinsics. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212350 91177308-0d34-0410-b5e6-96231b3b80d8
130 lines
4.1 KiB
C++
130 lines
4.1 KiB
C++
//===-- llvm/Instrinsics.h - LLVM Intrinsic Function Handling ---*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines a set of enums which allow processing of intrinsic
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// functions. Values of these enum types are returned by
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// Function::getIntrinsicID.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_IR_INTRINSICS_H
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#define LLVM_IR_INTRINSICS_H
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#include "llvm/ADT/ArrayRef.h"
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#include <string>
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namespace llvm {
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class Type;
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class FunctionType;
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class Function;
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class LLVMContext;
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class Module;
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class AttributeSet;
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/// Intrinsic Namespace - This namespace contains an enum with a value for
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/// every intrinsic/builtin function known by LLVM. These enum values are
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/// returned by Function::getIntrinsicID().
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///
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namespace Intrinsic {
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enum ID {
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not_intrinsic = 0, // Must be zero
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// Get the intrinsic enums generated from Intrinsics.td
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#define GET_INTRINSIC_ENUM_VALUES
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#include "llvm/IR/Intrinsics.gen"
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#undef GET_INTRINSIC_ENUM_VALUES
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, num_intrinsics
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};
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/// Intrinsic::getName(ID) - Return the LLVM name for an intrinsic, such as
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/// "llvm.ppc.altivec.lvx".
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std::string getName(ID id, ArrayRef<Type*> Tys = None);
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/// Intrinsic::getType(ID) - Return the function type for an intrinsic.
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///
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FunctionType *getType(LLVMContext &Context, ID id,
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ArrayRef<Type*> Tys = None);
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/// Intrinsic::isOverloaded(ID) - Returns true if the intrinsic can be
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/// overloaded.
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bool isOverloaded(ID id);
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/// Intrinsic::getAttributes(ID) - Return the attributes for an intrinsic.
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///
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AttributeSet getAttributes(LLVMContext &C, ID id);
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/// Intrinsic::getDeclaration(M, ID) - Create or insert an LLVM Function
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/// declaration for an intrinsic, and return it.
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///
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/// The Tys parameter is for intrinsics with overloaded types (e.g., those
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/// using iAny, fAny, vAny, or iPTRAny). For a declaration of an overloaded
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/// intrinsic, Tys must provide exactly one type for each overloaded type in
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/// the intrinsic.
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Function *getDeclaration(Module *M, ID id, ArrayRef<Type*> Tys = None);
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/// Map a GCC builtin name to an intrinsic ID.
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ID getIntrinsicForGCCBuiltin(const char *Prefix, const char *BuiltinName);
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/// Map a MS builtin name to an intrinsic ID.
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ID getIntrinsicForMSBuiltin(const char *Prefix, const char *BuiltinName);
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/// IITDescriptor - This is a type descriptor which explains the type
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/// requirements of an intrinsic. This is returned by
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/// getIntrinsicInfoTableEntries.
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struct IITDescriptor {
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enum IITDescriptorKind {
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Void, VarArg, MMX, Metadata, Half, Float, Double,
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Integer, Vector, Pointer, Struct,
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Argument, ExtendArgument, TruncArgument, HalfVecArgument
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} Kind;
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union {
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unsigned Integer_Width;
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unsigned Float_Width;
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unsigned Vector_Width;
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unsigned Pointer_AddressSpace;
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unsigned Struct_NumElements;
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unsigned Argument_Info;
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};
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enum ArgKind {
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AK_AnyInteger,
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AK_AnyFloat,
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AK_AnyVector,
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AK_AnyPointer
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};
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unsigned getArgumentNumber() const {
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assert(Kind == Argument || Kind == ExtendArgument ||
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Kind == TruncArgument || Kind == HalfVecArgument);
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return Argument_Info >> 2;
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}
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ArgKind getArgumentKind() const {
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assert(Kind == Argument || Kind == ExtendArgument ||
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Kind == TruncArgument || Kind == HalfVecArgument);
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return (ArgKind)(Argument_Info&3);
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}
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static IITDescriptor get(IITDescriptorKind K, unsigned Field) {
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IITDescriptor Result = { K, { Field } };
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return Result;
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}
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};
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/// getIntrinsicInfoTableEntries - Return the IIT table descriptor for the
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/// specified intrinsic into an array of IITDescriptors.
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///
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void getIntrinsicInfoTableEntries(ID id, SmallVectorImpl<IITDescriptor> &T);
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} // End Intrinsic namespace
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} // End llvm namespace
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#endif
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