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Imported Upstream version 5.18.0.167

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Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a
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Xamarin Public Jenkins (auto-signing)
2018-10-20 08:25:10 +00:00
parent e19d552987
commit b084638f15
28489 changed files with 184 additions and 3866856 deletions
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91
external/llvm/utils/TableGen/TableGenBackends.h vendored
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@ -1,91 +0,0 @@
//===- TableGenBackends.h - Declarations for LLVM TableGen Backends -------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains the declarations for all of the LLVM TableGen
// backends. A "TableGen backend" is just a function. See below for a
// precise description.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_UTILS_TABLEGEN_TABLEGENBACKENDS_H
#define LLVM_UTILS_TABLEGEN_TABLEGENBACKENDS_H
// A TableGen backend is a function that looks like
//
// EmitFoo(RecordKeeper &RK, raw_ostream &OS /*, anything else you need */ )
//
// What you do inside of that function is up to you, but it will usually
// involve generating C++ code to the provided raw_ostream.
//
// The RecordKeeper is just a top-level container for an in-memory
// representation of the data encoded in the TableGen file. What a TableGen
// backend does is walk around that in-memory representation and generate
// stuff based on the information it contains.
//
// The in-memory representation is a node-graph (think of it like JSON but
// with a richer ontology of types), where the nodes are subclasses of
// Record. The methods `getClass`, `getDef` are the basic interface to
// access the node-graph. RecordKeeper also provides a handy method
// `getAllDerivedDefinitions`. Consult "include/llvm/TableGen/Record.h" for
// the exact interfaces provided by Record's and RecordKeeper.
//
// A common pattern for TableGen backends is for the EmitFoo function to
// instantiate a class which holds some context for the generation process,
// and then have most of the work happen in that class's methods. This
// pattern partly has historical roots in the previous TableGen backend API
// that involved a class and an invocation like `FooEmitter(RK).run(OS)`.
//
// Remember to wrap private things in an anonymous namespace. For most
// backends, this means that the EmitFoo function is the only thing not in
// the anonymous namespace.
// FIXME: Reorganize TableGen so that build dependencies can be more
// accurately expressed. Currently, touching any of the emitters (or
// anything that they transitively depend on) causes everything dependent
// on TableGen to be rebuilt (this includes all the targets!). Perhaps have
// a standalone TableGen binary and have the backends be loadable modules
// of some sort; then the dependency could be expressed as being on the
// module, and all the modules would have a common dependency on the
// TableGen binary with as few dependencies as possible on the rest of
// LLVM.
namespace llvm {
class raw_ostream;
class RecordKeeper;
void EmitIntrinsics(RecordKeeper &RK, raw_ostream &OS, bool TargetOnly = false);
void EmitAsmMatcher(RecordKeeper &RK, raw_ostream &OS);
void EmitAsmWriter(RecordKeeper &RK, raw_ostream &OS);
void EmitCallingConv(RecordKeeper &RK, raw_ostream &OS);
void EmitCodeEmitter(RecordKeeper &RK, raw_ostream &OS);
void EmitDAGISel(RecordKeeper &RK, raw_ostream &OS);
void EmitDFAPacketizer(RecordKeeper &RK, raw_ostream &OS);
void EmitDisassembler(RecordKeeper &RK, raw_ostream &OS);
void EmitFastISel(RecordKeeper &RK, raw_ostream &OS);
void EmitInstrInfo(RecordKeeper &RK, raw_ostream &OS);
void EmitInstrDocs(RecordKeeper &RK, raw_ostream &OS);
void EmitPseudoLowering(RecordKeeper &RK, raw_ostream &OS);
void EmitRegisterInfo(RecordKeeper &RK, raw_ostream &OS);
void EmitSubtarget(RecordKeeper &RK, raw_ostream &OS);
void EmitMapTable(RecordKeeper &RK, raw_ostream &OS);
void EmitOptParser(RecordKeeper &RK, raw_ostream &OS);
void EmitCTags(RecordKeeper &RK, raw_ostream &OS);
void EmitAttributes(RecordKeeper &RK, raw_ostream &OS);
void EmitSearchableTables(RecordKeeper &RK, raw_ostream &OS);
void EmitGlobalISel(RecordKeeper &RK, raw_ostream &OS);
void EmitX86EVEX2VEXTables(RecordKeeper &RK, raw_ostream &OS);
void EmitX86FoldTables(RecordKeeper &RK, raw_ostream &OS);
void EmitRegisterBank(RecordKeeper &RK, raw_ostream &OS);
} // End llvm namespace
#endif