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	cleanups. Also, change code in tablegen which printed a message and then called "exit(1)" to use PrintFatalError, instead. This fixes instances where an empty output file was left behind after a failed tablegen invocation, which would confuse subsequent ninja runs into not attempting to rebuild. Differential Revision: http://reviews.llvm.org/D9608 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237058 91177308-0d34-0410-b5e6-96231b3b80d8
		
			
				
	
	
		
			595 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			595 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| //===- CodeGenTarget.cpp - CodeGen Target Class Wrapper -------------------===//
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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 class wraps target description classes used by the various code
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| // generation TableGen backends.  This makes it easier to access the data and
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| // provides a single place that needs to check it for validity.  All of these
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| // classes abort on error conditions.
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| //
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| //===----------------------------------------------------------------------===//
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| 
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| #include "CodeGenTarget.h"
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| #include "CodeGenIntrinsics.h"
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| #include "CodeGenSchedule.h"
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| #include "llvm/ADT/STLExtras.h"
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| #include "llvm/ADT/StringExtras.h"
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| #include "llvm/Support/CommandLine.h"
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| #include "llvm/TableGen/Error.h"
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| #include "llvm/TableGen/Record.h"
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| #include <algorithm>
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| using namespace llvm;
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| 
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| static cl::opt<unsigned>
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| AsmParserNum("asmparsernum", cl::init(0),
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|              cl::desc("Make -gen-asm-parser emit assembly parser #N"));
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| 
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| static cl::opt<unsigned>
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| AsmWriterNum("asmwriternum", cl::init(0),
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|              cl::desc("Make -gen-asm-writer emit assembly writer #N"));
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| 
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| /// getValueType - Return the MVT::SimpleValueType that the specified TableGen
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| /// record corresponds to.
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| MVT::SimpleValueType llvm::getValueType(Record *Rec) {
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|   return (MVT::SimpleValueType)Rec->getValueAsInt("Value");
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| }
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| 
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| std::string llvm::getName(MVT::SimpleValueType T) {
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|   switch (T) {
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|   case MVT::Other:   return "UNKNOWN";
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|   case MVT::iPTR:    return "TLI.getPointerTy()";
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|   case MVT::iPTRAny: return "TLI.getPointerTy()";
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|   default: return getEnumName(T);
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|   }
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| }
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| 
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| std::string llvm::getEnumName(MVT::SimpleValueType T) {
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|   switch (T) {
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|   case MVT::Other:    return "MVT::Other";
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|   case MVT::i1:       return "MVT::i1";
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|   case MVT::i8:       return "MVT::i8";
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|   case MVT::i16:      return "MVT::i16";
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|   case MVT::i32:      return "MVT::i32";
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|   case MVT::i64:      return "MVT::i64";
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|   case MVT::i128:     return "MVT::i128";
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|   case MVT::Any:      return "MVT::Any";
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|   case MVT::iAny:     return "MVT::iAny";
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|   case MVT::fAny:     return "MVT::fAny";
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|   case MVT::vAny:     return "MVT::vAny";
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|   case MVT::f16:      return "MVT::f16";
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|   case MVT::f32:      return "MVT::f32";
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|   case MVT::f64:      return "MVT::f64";
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|   case MVT::f80:      return "MVT::f80";
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|   case MVT::f128:     return "MVT::f128";
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|   case MVT::ppcf128:  return "MVT::ppcf128";
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|   case MVT::x86mmx:   return "MVT::x86mmx";
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|   case MVT::Glue:     return "MVT::Glue";
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|   case MVT::isVoid:   return "MVT::isVoid";
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|   case MVT::v2i1:     return "MVT::v2i1";
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|   case MVT::v4i1:     return "MVT::v4i1";
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|   case MVT::v8i1:     return "MVT::v8i1";
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|   case MVT::v16i1:    return "MVT::v16i1";
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|   case MVT::v32i1:    return "MVT::v32i1";
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|   case MVT::v64i1:    return "MVT::v64i1";
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|   case MVT::v1i8:     return "MVT::v1i8";
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|   case MVT::v2i8:     return "MVT::v2i8";
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|   case MVT::v4i8:     return "MVT::v4i8";
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|   case MVT::v8i8:     return "MVT::v8i8";
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|   case MVT::v16i8:    return "MVT::v16i8";
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|   case MVT::v32i8:    return "MVT::v32i8";
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|   case MVT::v64i8:    return "MVT::v64i8";
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|   case MVT::v1i16:    return "MVT::v1i16";
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|   case MVT::v2i16:    return "MVT::v2i16";
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|   case MVT::v4i16:    return "MVT::v4i16";
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|   case MVT::v8i16:    return "MVT::v8i16";
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|   case MVT::v16i16:   return "MVT::v16i16";
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|   case MVT::v32i16:   return "MVT::v32i16";
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|   case MVT::v1i32:    return "MVT::v1i32";
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|   case MVT::v2i32:    return "MVT::v2i32";
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|   case MVT::v4i32:    return "MVT::v4i32";
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|   case MVT::v8i32:    return "MVT::v8i32";
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|   case MVT::v16i32:   return "MVT::v16i32";
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|   case MVT::v1i64:    return "MVT::v1i64";
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|   case MVT::v2i64:    return "MVT::v2i64";
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|   case MVT::v4i64:    return "MVT::v4i64";
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|   case MVT::v8i64:    return "MVT::v8i64";
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|   case MVT::v16i64:   return "MVT::v16i64";
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|   case MVT::v1i128:   return "MVT::v1i128";
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|   case MVT::v2f16:    return "MVT::v2f16";
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|   case MVT::v4f16:    return "MVT::v4f16";
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|   case MVT::v8f16:    return "MVT::v8f16";
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|   case MVT::v1f32:    return "MVT::v1f32";
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|   case MVT::v2f32:    return "MVT::v2f32";
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|   case MVT::v4f32:    return "MVT::v4f32";
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|   case MVT::v8f32:    return "MVT::v8f32";
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|   case MVT::v16f32:   return "MVT::v16f32";
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|   case MVT::v1f64:    return "MVT::v1f64";
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|   case MVT::v2f64:    return "MVT::v2f64";
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|   case MVT::v4f64:    return "MVT::v4f64";
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|   case MVT::v8f64:    return "MVT::v8f64";
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|   case MVT::Metadata: return "MVT::Metadata";
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|   case MVT::iPTR:     return "MVT::iPTR";
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|   case MVT::iPTRAny:  return "MVT::iPTRAny";
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|   case MVT::Untyped:  return "MVT::Untyped";
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|   default: llvm_unreachable("ILLEGAL VALUE TYPE!");
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|   }
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| }
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| 
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| /// getQualifiedName - Return the name of the specified record, with a
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| /// namespace qualifier if the record contains one.
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| ///
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| std::string llvm::getQualifiedName(const Record *R) {
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|   std::string Namespace;
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|   if (R->getValue("Namespace"))
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|      Namespace = R->getValueAsString("Namespace");
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|   if (Namespace.empty()) return R->getName();
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|   return Namespace + "::" + R->getName();
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| }
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| 
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| 
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| /// getTarget - Return the current instance of the Target class.
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| ///
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| CodeGenTarget::CodeGenTarget(RecordKeeper &records)
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|   : Records(records) {
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|   std::vector<Record*> Targets = Records.getAllDerivedDefinitions("Target");
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|   if (Targets.size() == 0)
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|     PrintFatalError("ERROR: No 'Target' subclasses defined!");
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|   if (Targets.size() != 1)
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|     PrintFatalError("ERROR: Multiple subclasses of Target defined!");
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|   TargetRec = Targets[0];
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| }
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| 
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| CodeGenTarget::~CodeGenTarget() {
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| }
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| 
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| const std::string &CodeGenTarget::getName() const {
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|   return TargetRec->getName();
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| }
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| 
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| std::string CodeGenTarget::getInstNamespace() const {
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|   for (const CodeGenInstruction *Inst : instructions()) {
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|     // Make sure not to pick up "TargetOpcode" by accidentally getting
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|     // the namespace off the PHI instruction or something.
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|     if (Inst->Namespace != "TargetOpcode")
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|       return Inst->Namespace;
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|   }
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| 
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|   return "";
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| }
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| 
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| Record *CodeGenTarget::getInstructionSet() const {
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|   return TargetRec->getValueAsDef("InstructionSet");
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| }
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| 
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| 
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| /// getAsmParser - Return the AssemblyParser definition for this target.
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| ///
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| Record *CodeGenTarget::getAsmParser() const {
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|   std::vector<Record*> LI = TargetRec->getValueAsListOfDefs("AssemblyParsers");
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|   if (AsmParserNum >= LI.size())
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|     PrintFatalError("Target does not have an AsmParser #" +
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|                     Twine(AsmParserNum) + "!");
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|   return LI[AsmParserNum];
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| }
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| 
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| /// getAsmParserVariant - Return the AssmblyParserVariant definition for
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| /// this target.
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| ///
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| Record *CodeGenTarget::getAsmParserVariant(unsigned i) const {
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|   std::vector<Record*> LI =
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|     TargetRec->getValueAsListOfDefs("AssemblyParserVariants");
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|   if (i >= LI.size())
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|     PrintFatalError("Target does not have an AsmParserVariant #" + Twine(i) +
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|                     "!");
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|   return LI[i];
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| }
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| 
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| /// getAsmParserVariantCount - Return the AssmblyParserVariant definition
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| /// available for this target.
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| ///
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| unsigned CodeGenTarget::getAsmParserVariantCount() const {
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|   std::vector<Record*> LI =
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|     TargetRec->getValueAsListOfDefs("AssemblyParserVariants");
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|   return LI.size();
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| }
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| 
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| /// getAsmWriter - Return the AssemblyWriter definition for this target.
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| ///
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| Record *CodeGenTarget::getAsmWriter() const {
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|   std::vector<Record*> LI = TargetRec->getValueAsListOfDefs("AssemblyWriters");
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|   if (AsmWriterNum >= LI.size())
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|     PrintFatalError("Target does not have an AsmWriter #" +
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|                     Twine(AsmWriterNum) + "!");
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|   return LI[AsmWriterNum];
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| }
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| 
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| CodeGenRegBank &CodeGenTarget::getRegBank() const {
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|   if (!RegBank)
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|     RegBank = llvm::make_unique<CodeGenRegBank>(Records);
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|   return *RegBank;
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| }
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| 
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| void CodeGenTarget::ReadRegAltNameIndices() const {
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|   RegAltNameIndices = Records.getAllDerivedDefinitions("RegAltNameIndex");
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|   std::sort(RegAltNameIndices.begin(), RegAltNameIndices.end(), LessRecord());
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| }
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| 
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| /// getRegisterByName - If there is a register with the specific AsmName,
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| /// return it.
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| const CodeGenRegister *CodeGenTarget::getRegisterByName(StringRef Name) const {
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|   const StringMap<CodeGenRegister*> &Regs = getRegBank().getRegistersByName();
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|   StringMap<CodeGenRegister*>::const_iterator I = Regs.find(Name);
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|   if (I == Regs.end())
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|     return nullptr;
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|   return I->second;
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| }
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| 
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| std::vector<MVT::SimpleValueType> CodeGenTarget::
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| getRegisterVTs(Record *R) const {
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|   const CodeGenRegister *Reg = getRegBank().getReg(R);
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|   std::vector<MVT::SimpleValueType> Result;
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|   for (const auto &RC : getRegBank().getRegClasses()) {
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|     if (RC.contains(Reg)) {
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|       ArrayRef<MVT::SimpleValueType> InVTs = RC.getValueTypes();
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|       Result.insert(Result.end(), InVTs.begin(), InVTs.end());
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|     }
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|   }
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| 
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|   // Remove duplicates.
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|   array_pod_sort(Result.begin(), Result.end());
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|   Result.erase(std::unique(Result.begin(), Result.end()), Result.end());
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|   return Result;
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| }
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| 
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| 
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| void CodeGenTarget::ReadLegalValueTypes() const {
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|   for (const auto &RC : getRegBank().getRegClasses())
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|     LegalValueTypes.insert(LegalValueTypes.end(), RC.VTs.begin(), RC.VTs.end());
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| 
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|   // Remove duplicates.
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|   std::sort(LegalValueTypes.begin(), LegalValueTypes.end());
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|   LegalValueTypes.erase(std::unique(LegalValueTypes.begin(),
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|                                     LegalValueTypes.end()),
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|                         LegalValueTypes.end());
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| }
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| 
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| CodeGenSchedModels &CodeGenTarget::getSchedModels() const {
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|   if (!SchedModels)
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|     SchedModels = llvm::make_unique<CodeGenSchedModels>(Records, *this);
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|   return *SchedModels;
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| }
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| 
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| void CodeGenTarget::ReadInstructions() const {
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|   std::vector<Record*> Insts = Records.getAllDerivedDefinitions("Instruction");
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|   if (Insts.size() <= 2)
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|     PrintFatalError("No 'Instruction' subclasses defined!");
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| 
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|   // Parse the instructions defined in the .td file.
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|   for (unsigned i = 0, e = Insts.size(); i != e; ++i)
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|     Instructions[Insts[i]] = llvm::make_unique<CodeGenInstruction>(Insts[i]);
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| }
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| 
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| static const CodeGenInstruction *
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| GetInstByName(const char *Name,
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|               const DenseMap<const Record*,
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|                              std::unique_ptr<CodeGenInstruction>> &Insts,
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|               RecordKeeper &Records) {
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|   const Record *Rec = Records.getDef(Name);
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| 
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|   const auto I = Insts.find(Rec);
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|   if (!Rec || I == Insts.end())
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|     PrintFatalError(Twine("Could not find '") + Name + "' instruction!");
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|   return I->second.get();
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| }
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| 
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| /// \brief Return all of the instructions defined by the target, ordered by
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| /// their enum value.
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| void CodeGenTarget::ComputeInstrsByEnum() const {
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|   // The ordering here must match the ordering in TargetOpcodes.h.
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|   static const char *const FixedInstrs[] = {
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|       "PHI",          "INLINEASM",     "CFI_INSTRUCTION",  "EH_LABEL",
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|       "GC_LABEL",     "KILL",          "EXTRACT_SUBREG",   "INSERT_SUBREG",
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|       "IMPLICIT_DEF", "SUBREG_TO_REG", "COPY_TO_REGCLASS", "DBG_VALUE",
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|       "REG_SEQUENCE", "COPY",          "BUNDLE",           "LIFETIME_START",
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|       "LIFETIME_END", "STACKMAP",      "PATCHPOINT",       "LOAD_STACK_GUARD",
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|       "STATEPOINT",   "FRAME_ALLOC",
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|       nullptr};
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|   const auto &Insts = getInstructions();
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|   for (const char *const *p = FixedInstrs; *p; ++p) {
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|     const CodeGenInstruction *Instr = GetInstByName(*p, Insts, Records);
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|     assert(Instr && "Missing target independent instruction");
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|     assert(Instr->Namespace == "TargetOpcode" && "Bad namespace");
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|     InstrsByEnum.push_back(Instr);
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|   }
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|   unsigned EndOfPredefines = InstrsByEnum.size();
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| 
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|   for (const auto &I : Insts) {
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|     const CodeGenInstruction *CGI = I.second.get();
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|     if (CGI->Namespace != "TargetOpcode")
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|       InstrsByEnum.push_back(CGI);
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|   }
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| 
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|   assert(InstrsByEnum.size() == Insts.size() && "Missing predefined instr");
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| 
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|   // All of the instructions are now in random order based on the map iteration.
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|   // Sort them by name.
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|   std::sort(InstrsByEnum.begin() + EndOfPredefines, InstrsByEnum.end(),
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|             [](const CodeGenInstruction *Rec1, const CodeGenInstruction *Rec2) {
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|     return Rec1->TheDef->getName() < Rec2->TheDef->getName();
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|   });
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| }
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| 
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| 
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| /// isLittleEndianEncoding - Return whether this target encodes its instruction
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| /// in little-endian format, i.e. bits laid out in the order [0..n]
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| ///
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| bool CodeGenTarget::isLittleEndianEncoding() const {
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|   return getInstructionSet()->getValueAsBit("isLittleEndianEncoding");
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| }
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| 
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| /// reverseBitsForLittleEndianEncoding - For little-endian instruction bit
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| /// encodings, reverse the bit order of all instructions.
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| void CodeGenTarget::reverseBitsForLittleEndianEncoding() {
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|   if (!isLittleEndianEncoding())
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|     return;
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| 
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|   std::vector<Record*> Insts = Records.getAllDerivedDefinitions("Instruction");
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|   for (Record *R : Insts) {
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|     if (R->getValueAsString("Namespace") == "TargetOpcode" ||
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|         R->getValueAsBit("isPseudo"))
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|       continue;
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| 
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|     BitsInit *BI = R->getValueAsBitsInit("Inst");
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| 
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|     unsigned numBits = BI->getNumBits();
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|  
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|     SmallVector<Init *, 16> NewBits(numBits);
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|  
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|     for (unsigned bit = 0, end = numBits / 2; bit != end; ++bit) {
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|       unsigned bitSwapIdx = numBits - bit - 1;
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|       Init *OrigBit = BI->getBit(bit);
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|       Init *BitSwap = BI->getBit(bitSwapIdx);
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|       NewBits[bit]        = BitSwap;
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|       NewBits[bitSwapIdx] = OrigBit;
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|     }
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|     if (numBits % 2) {
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|       unsigned middle = (numBits + 1) / 2;
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|       NewBits[middle] = BI->getBit(middle);
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|     }
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| 
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|     BitsInit *NewBI = BitsInit::get(NewBits);
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| 
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|     // Update the bits in reversed order so that emitInstrOpBits will get the
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|     // correct endianness.
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|     R->getValue("Inst")->setValue(NewBI);
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|   }
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| }
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| 
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| /// guessInstructionProperties - Return true if it's OK to guess instruction
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| /// properties instead of raising an error.
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| ///
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| /// This is configurable as a temporary migration aid. It will eventually be
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| /// permanently false.
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| bool CodeGenTarget::guessInstructionProperties() const {
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|   return getInstructionSet()->getValueAsBit("guessInstructionProperties");
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| }
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| 
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| //===----------------------------------------------------------------------===//
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| // ComplexPattern implementation
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| //
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| ComplexPattern::ComplexPattern(Record *R) {
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|   Ty          = ::getValueType(R->getValueAsDef("Ty"));
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|   NumOperands = R->getValueAsInt("NumOperands");
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|   SelectFunc  = R->getValueAsString("SelectFunc");
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|   RootNodes   = R->getValueAsListOfDefs("RootNodes");
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| 
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|   // Parse the properties.
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|   Properties = 0;
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|   std::vector<Record*> PropList = R->getValueAsListOfDefs("Properties");
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|   for (unsigned i = 0, e = PropList.size(); i != e; ++i)
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|     if (PropList[i]->getName() == "SDNPHasChain") {
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|       Properties |= 1 << SDNPHasChain;
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|     } else if (PropList[i]->getName() == "SDNPOptInGlue") {
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|       Properties |= 1 << SDNPOptInGlue;
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|     } else if (PropList[i]->getName() == "SDNPMayStore") {
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|       Properties |= 1 << SDNPMayStore;
 | |
|     } else if (PropList[i]->getName() == "SDNPMayLoad") {
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|       Properties |= 1 << SDNPMayLoad;
 | |
|     } else if (PropList[i]->getName() == "SDNPSideEffect") {
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|       Properties |= 1 << SDNPSideEffect;
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|     } else if (PropList[i]->getName() == "SDNPMemOperand") {
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|       Properties |= 1 << SDNPMemOperand;
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|     } else if (PropList[i]->getName() == "SDNPVariadic") {
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|       Properties |= 1 << SDNPVariadic;
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|     } else if (PropList[i]->getName() == "SDNPWantRoot") {
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|       Properties |= 1 << SDNPWantRoot;
 | |
|     } else if (PropList[i]->getName() == "SDNPWantParent") {
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|       Properties |= 1 << SDNPWantParent;
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|     } else {
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|       PrintFatalError("Unsupported SD Node property '" +
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|                       PropList[i]->getName() + "' on ComplexPattern '" +
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|                       R->getName() + "'!");
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|     }
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| }
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| 
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| //===----------------------------------------------------------------------===//
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| // CodeGenIntrinsic Implementation
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| //===----------------------------------------------------------------------===//
 | |
| 
 | |
| std::vector<CodeGenIntrinsic> llvm::LoadIntrinsics(const RecordKeeper &RC,
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|                                                    bool TargetOnly) {
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|   std::vector<Record*> I = RC.getAllDerivedDefinitions("Intrinsic");
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| 
 | |
|   std::vector<CodeGenIntrinsic> Result;
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| 
 | |
|   for (unsigned i = 0, e = I.size(); i != e; ++i) {
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|     bool isTarget = I[i]->getValueAsBit("isTarget");
 | |
|     if (isTarget == TargetOnly)
 | |
|       Result.push_back(CodeGenIntrinsic(I[i]));
 | |
|   }
 | |
|   return Result;
 | |
| }
 | |
| 
 | |
| CodeGenIntrinsic::CodeGenIntrinsic(Record *R) {
 | |
|   TheDef = R;
 | |
|   std::string DefName = R->getName();
 | |
|   ModRef = ReadWriteMem;
 | |
|   isOverloaded = false;
 | |
|   isCommutative = false;
 | |
|   canThrow = false;
 | |
|   isNoReturn = false;
 | |
|   isNoDuplicate = false;
 | |
| 
 | |
|   if (DefName.size() <= 4 ||
 | |
|       std::string(DefName.begin(), DefName.begin() + 4) != "int_")
 | |
|     PrintFatalError("Intrinsic '" + DefName + "' does not start with 'int_'!");
 | |
| 
 | |
|   EnumName = std::string(DefName.begin()+4, DefName.end());
 | |
| 
 | |
|   if (R->getValue("GCCBuiltinName"))  // Ignore a missing GCCBuiltinName field.
 | |
|     GCCBuiltinName = R->getValueAsString("GCCBuiltinName");
 | |
|   if (R->getValue("MSBuiltinName"))   // Ignore a missing MSBuiltinName field.
 | |
|     MSBuiltinName = R->getValueAsString("MSBuiltinName");
 | |
| 
 | |
|   TargetPrefix = R->getValueAsString("TargetPrefix");
 | |
|   Name = R->getValueAsString("LLVMName");
 | |
| 
 | |
|   if (Name == "") {
 | |
|     // If an explicit name isn't specified, derive one from the DefName.
 | |
|     Name = "llvm.";
 | |
| 
 | |
|     for (unsigned i = 0, e = EnumName.size(); i != e; ++i)
 | |
|       Name += (EnumName[i] == '_') ? '.' : EnumName[i];
 | |
|   } else {
 | |
|     // Verify it starts with "llvm.".
 | |
|     if (Name.size() <= 5 ||
 | |
|         std::string(Name.begin(), Name.begin() + 5) != "llvm.")
 | |
|       PrintFatalError("Intrinsic '" + DefName + "'s name does not start with 'llvm.'!");
 | |
|   }
 | |
| 
 | |
|   // If TargetPrefix is specified, make sure that Name starts with
 | |
|   // "llvm.<targetprefix>.".
 | |
|   if (!TargetPrefix.empty()) {
 | |
|     if (Name.size() < 6+TargetPrefix.size() ||
 | |
|         std::string(Name.begin() + 5, Name.begin() + 6 + TargetPrefix.size())
 | |
|         != (TargetPrefix + "."))
 | |
|       PrintFatalError("Intrinsic '" + DefName + "' does not start with 'llvm." +
 | |
|         TargetPrefix + ".'!");
 | |
|   }
 | |
| 
 | |
|   // Parse the list of return types.
 | |
|   std::vector<MVT::SimpleValueType> OverloadedVTs;
 | |
|   ListInit *TypeList = R->getValueAsListInit("RetTypes");
 | |
|   for (unsigned i = 0, e = TypeList->getSize(); i != e; ++i) {
 | |
|     Record *TyEl = TypeList->getElementAsRecord(i);
 | |
|     assert(TyEl->isSubClassOf("LLVMType") && "Expected a type!");
 | |
|     MVT::SimpleValueType VT;
 | |
|     if (TyEl->isSubClassOf("LLVMMatchType")) {
 | |
|       unsigned MatchTy = TyEl->getValueAsInt("Number");
 | |
|       assert(MatchTy < OverloadedVTs.size() &&
 | |
|              "Invalid matching number!");
 | |
|       VT = OverloadedVTs[MatchTy];
 | |
|       // It only makes sense to use the extended and truncated vector element
 | |
|       // variants with iAny types; otherwise, if the intrinsic is not
 | |
|       // overloaded, all the types can be specified directly.
 | |
|       assert(((!TyEl->isSubClassOf("LLVMExtendedType") &&
 | |
|                !TyEl->isSubClassOf("LLVMTruncatedType")) ||
 | |
|               VT == MVT::iAny || VT == MVT::vAny) &&
 | |
|              "Expected iAny or vAny type");
 | |
|     } else {
 | |
|       VT = getValueType(TyEl->getValueAsDef("VT"));
 | |
|     }
 | |
|     if (MVT(VT).isOverloaded()) {
 | |
|       OverloadedVTs.push_back(VT);
 | |
|       isOverloaded = true;
 | |
|     }
 | |
| 
 | |
|     // Reject invalid types.
 | |
|     if (VT == MVT::isVoid)
 | |
|       PrintFatalError("Intrinsic '" + DefName + " has void in result type list!");
 | |
| 
 | |
|     IS.RetVTs.push_back(VT);
 | |
|     IS.RetTypeDefs.push_back(TyEl);
 | |
|   }
 | |
| 
 | |
|   // Parse the list of parameter types.
 | |
|   TypeList = R->getValueAsListInit("ParamTypes");
 | |
|   for (unsigned i = 0, e = TypeList->getSize(); i != e; ++i) {
 | |
|     Record *TyEl = TypeList->getElementAsRecord(i);
 | |
|     assert(TyEl->isSubClassOf("LLVMType") && "Expected a type!");
 | |
|     MVT::SimpleValueType VT;
 | |
|     if (TyEl->isSubClassOf("LLVMMatchType")) {
 | |
|       unsigned MatchTy = TyEl->getValueAsInt("Number");
 | |
|       assert(MatchTy < OverloadedVTs.size() &&
 | |
|              "Invalid matching number!");
 | |
|       VT = OverloadedVTs[MatchTy];
 | |
|       // It only makes sense to use the extended and truncated vector element
 | |
|       // variants with iAny types; otherwise, if the intrinsic is not
 | |
|       // overloaded, all the types can be specified directly.
 | |
|       assert(((!TyEl->isSubClassOf("LLVMExtendedType") &&
 | |
|                !TyEl->isSubClassOf("LLVMTruncatedType") &&
 | |
|                !TyEl->isSubClassOf("LLVMVectorSameWidth") &&
 | |
|                !TyEl->isSubClassOf("LLVMPointerToElt")) ||
 | |
|               VT == MVT::iAny || VT == MVT::vAny) &&
 | |
|              "Expected iAny or vAny type");
 | |
|     } else
 | |
|       VT = getValueType(TyEl->getValueAsDef("VT"));
 | |
| 
 | |
|     if (MVT(VT).isOverloaded()) {
 | |
|       OverloadedVTs.push_back(VT);
 | |
|       isOverloaded = true;
 | |
|     }
 | |
| 
 | |
|     // Reject invalid types.
 | |
|     if (VT == MVT::isVoid && i != e-1 /*void at end means varargs*/)
 | |
|       PrintFatalError("Intrinsic '" + DefName + " has void in result type list!");
 | |
| 
 | |
|     IS.ParamVTs.push_back(VT);
 | |
|     IS.ParamTypeDefs.push_back(TyEl);
 | |
|   }
 | |
| 
 | |
|   // Parse the intrinsic properties.
 | |
|   ListInit *PropList = R->getValueAsListInit("Properties");
 | |
|   for (unsigned i = 0, e = PropList->getSize(); i != e; ++i) {
 | |
|     Record *Property = PropList->getElementAsRecord(i);
 | |
|     assert(Property->isSubClassOf("IntrinsicProperty") &&
 | |
|            "Expected a property!");
 | |
| 
 | |
|     if (Property->getName() == "IntrNoMem")
 | |
|       ModRef = NoMem;
 | |
|     else if (Property->getName() == "IntrReadArgMem")
 | |
|       ModRef = ReadArgMem;
 | |
|     else if (Property->getName() == "IntrReadMem")
 | |
|       ModRef = ReadMem;
 | |
|     else if (Property->getName() == "IntrReadWriteArgMem")
 | |
|       ModRef = ReadWriteArgMem;
 | |
|     else if (Property->getName() == "Commutative")
 | |
|       isCommutative = true;
 | |
|     else if (Property->getName() == "Throws")
 | |
|       canThrow = true;
 | |
|     else if (Property->getName() == "IntrNoDuplicate")
 | |
|       isNoDuplicate = true;
 | |
|     else if (Property->getName() == "IntrNoReturn")
 | |
|       isNoReturn = true;
 | |
|     else if (Property->isSubClassOf("NoCapture")) {
 | |
|       unsigned ArgNo = Property->getValueAsInt("ArgNo");
 | |
|       ArgumentAttributes.push_back(std::make_pair(ArgNo, NoCapture));
 | |
|     } else if (Property->isSubClassOf("ReadOnly")) {
 | |
|       unsigned ArgNo = Property->getValueAsInt("ArgNo");
 | |
|       ArgumentAttributes.push_back(std::make_pair(ArgNo, ReadOnly));
 | |
|     } else if (Property->isSubClassOf("ReadNone")) {
 | |
|       unsigned ArgNo = Property->getValueAsInt("ArgNo");
 | |
|       ArgumentAttributes.push_back(std::make_pair(ArgNo, ReadNone));
 | |
|     } else
 | |
|       llvm_unreachable("Unknown property!");
 | |
|   }
 | |
| 
 | |
|   // Sort the argument attributes for later benefit.
 | |
|   std::sort(ArgumentAttributes.begin(), ArgumentAttributes.end());
 | |
| }
 |