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a7af0d6280
Summary: IntrReadWriteArgMem simply becomes IntrArgMemOnly. So there are fewer intrinsic properties that express their orthogonality better, and correspond more closely to the corresponding IR attributes. Suggested by: Philip Reames Reviewers: joker.eph, reames, tstellarAMD Subscribers: jholewinski, arsenm, llvm-commits Differential Revision: http://reviews.llvm.org/D19291 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@267021 91177308-0d34-0410-b5e6-96231b3b80d8
129 lines
4.4 KiB
C++
129 lines
4.4 KiB
C++
//===- CodeGenIntrinsic.h - Intrinsic Class Wrapper ------------*- 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 wrapper class for the 'Intrinsic' TableGen class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_UTILS_TABLEGEN_CODEGENINTRINSICS_H
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#define LLVM_UTILS_TABLEGEN_CODEGENINTRINSICS_H
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#include "llvm/CodeGen/MachineValueType.h"
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#include <string>
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#include <vector>
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namespace llvm {
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class Record;
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class RecordKeeper;
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class CodeGenTarget;
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struct CodeGenIntrinsic {
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Record *TheDef; // The actual record defining this intrinsic.
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std::string Name; // The name of the LLVM function "llvm.bswap.i32"
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std::string EnumName; // The name of the enum "bswap_i32"
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std::string GCCBuiltinName;// Name of the corresponding GCC builtin, or "".
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std::string MSBuiltinName; // Name of the corresponding MS builtin, or "".
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std::string TargetPrefix; // Target prefix, e.g. "ppc" for t-s intrinsics.
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/// IntrinsicSignature - This structure holds the return values and
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/// parameter values of an intrinsic. If the number of return values is > 1,
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/// then the intrinsic implicitly returns a first-class aggregate. The
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/// numbering of the types starts at 0 with the first return value and
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/// continues from there through the parameter list. This is useful for
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/// "matching" types.
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struct IntrinsicSignature {
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/// RetVTs - The MVT::SimpleValueType for each return type. Note that this
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/// list is only populated when in the context of a target .td file. When
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/// building Intrinsics.td, this isn't available, because we don't know
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/// the target pointer size.
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std::vector<MVT::SimpleValueType> RetVTs;
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/// RetTypeDefs - The records for each return type.
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std::vector<Record*> RetTypeDefs;
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/// ParamVTs - The MVT::SimpleValueType for each parameter type. Note that
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/// this list is only populated when in the context of a target .td file.
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/// When building Intrinsics.td, this isn't available, because we don't
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/// know the target pointer size.
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std::vector<MVT::SimpleValueType> ParamVTs;
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/// ParamTypeDefs - The records for each parameter type.
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std::vector<Record*> ParamTypeDefs;
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};
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IntrinsicSignature IS;
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/// Bit flags describing the type (ref/mod) and location of memory
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/// accesses that may be performed by the intrinsics. Analogous to
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/// \c FunctionModRefBehaviour.
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enum ModRefBits {
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/// The intrinsic may access memory anywhere, i.e. it is not restricted
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/// to access through pointer arguments.
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MR_Anywhere = 1,
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/// The intrinsic may read memory.
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MR_Ref = 2,
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/// The intrinsic may write memory.
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MR_Mod = 4,
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/// The intrinsic may both read and write memory.
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MR_ModRef = MR_Ref | MR_Mod,
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};
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/// Memory mod/ref behavior of this intrinsic, corresponding to
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/// intrinsic properties (IntrReadMem, IntrArgMemOnly, etc.).
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enum ModRefBehavior {
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NoMem = 0,
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ReadArgMem = MR_Ref,
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ReadMem = MR_Ref | MR_Anywhere,
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WriteArgMem = MR_Mod,
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WriteMem = MR_Mod | MR_Anywhere,
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ReadWriteArgMem = MR_ModRef,
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ReadWriteMem = MR_ModRef | MR_Anywhere,
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};
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ModRefBehavior ModRef;
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/// This is set to true if the intrinsic is overloaded by its argument
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/// types.
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bool isOverloaded;
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/// isCommutative - True if the intrinsic is commutative.
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bool isCommutative;
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/// canThrow - True if the intrinsic can throw.
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bool canThrow;
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/// isNoDuplicate - True if the intrinsic is marked as noduplicate.
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bool isNoDuplicate;
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/// isNoReturn - True if the intrinsic is no-return.
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bool isNoReturn;
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/// isConvergent - True if the intrinsic is marked as convergent.
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bool isConvergent;
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enum ArgAttribute {
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NoCapture,
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ReadOnly,
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ReadNone
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};
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std::vector<std::pair<unsigned, ArgAttribute> > ArgumentAttributes;
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CodeGenIntrinsic(Record *R);
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};
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/// LoadIntrinsics - Read all of the intrinsics defined in the specified
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/// .td file.
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std::vector<CodeGenIntrinsic> LoadIntrinsics(const RecordKeeper &RC,
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bool TargetOnly);
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}
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#endif
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