#include "AsmMatcherEmitter.h"
#include "CodeGenTarget.h"
-#include "Error.h"
-#include "Record.h"
#include "StringMatcher.h"
#include "llvm/ADT/OwningPtr.h"
#include "llvm/ADT/PointerUnion.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
+#include "llvm/TableGen/Error.h"
+#include "llvm/TableGen/Record.h"
#include <map>
#include <set>
using namespace llvm;
BuildRegisterClasses(SmallPtrSet<Record*, 16> &SingletonRegisters) {
const std::vector<CodeGenRegister*> &Registers =
Target.getRegBank().getRegisters();
- const std::vector<CodeGenRegisterClass> &RegClassList =
- Target.getRegisterClasses();
+ ArrayRef<CodeGenRegisterClass*> RegClassList =
+ Target.getRegBank().getRegClasses();
// The register sets used for matching.
std::set< std::set<Record*> > RegisterSets;
// Gather the defined sets.
- for (std::vector<CodeGenRegisterClass>::const_iterator it =
+ for (ArrayRef<CodeGenRegisterClass*>::const_iterator it =
RegClassList.begin(), ie = RegClassList.end(); it != ie; ++it)
- RegisterSets.insert(std::set<Record*>(it->getOrder().begin(),
- it->getOrder().end()));
+ RegisterSets.insert(std::set<Record*>(
+ (*it)->getOrder().begin(), (*it)->getOrder().end()));
// Add any required singleton sets.
for (SmallPtrSet<Record*, 16>::iterator it = SingletonRegisters.begin(),
}
// Name the register classes which correspond to a user defined RegisterClass.
- for (std::vector<CodeGenRegisterClass>::const_iterator
+ for (ArrayRef<CodeGenRegisterClass*>::const_iterator
it = RegClassList.begin(), ie = RegClassList.end(); it != ie; ++it) {
- ClassInfo *CI = RegisterSetClasses[std::set<Record*>(it->getOrder().begin(),
- it->getOrder().end())];
+ const CodeGenRegisterClass &RC = **it;
+ // Def will be NULL for non-user defined register classes.
+ Record *Def = RC.getDef();
+ if (!Def)
+ continue;
+ ClassInfo *CI = RegisterSetClasses[std::set<Record*>(RC.getOrder().begin(),
+ RC.getOrder().end())];
if (CI->ValueName.empty()) {
- CI->ClassName = it->getName();
- CI->Name = "MCK_" + it->getName();
- CI->ValueName = it->getName();
+ CI->ClassName = RC.getName();
+ CI->Name = "MCK_" + RC.getName();
+ CI->ValueName = RC.getName();
} else
- CI->ValueName = CI->ValueName + "," + it->getName();
+ CI->ValueName = CI->ValueName + "," + RC.getName();
- RegisterClassClasses.insert(std::make_pair(it->TheDef, CI));
+ RegisterClassClasses.insert(std::make_pair(Def, CI));
}
// Populate the map for individual registers.
assert(FeatureNo < 32 && "Too many subtarget features!");
}
- StringRef CommentDelimiter = AsmParser->getValueAsString("CommentDelimiter");
+ std::string CommentDelimiter = AsmParser->getValueAsString("CommentDelimiter");
// Parse the instructions; we need to do this first so that we can gather the
// singleton register classes.
OS << " " << Info.Target.getName() << "Operand &Operand = *("
<< Info.Target.getName() << "Operand*)GOp;\n";
+ // The InvalidMatchClass is not to match any operand.
+ OS << " if (Kind == InvalidMatchClass)\n";
+ OS << " return false;\n\n";
+
// Check for Token operands first.
OS << " if (Operand.isToken())\n";
OS << " return MatchTokenString(Operand.getToken()) == Kind;\n\n";
Info.AsmParser->getValueAsString("AsmParserClassName");
OS << "unsigned " << Info.Target.getName() << ClassName << "::\n"
- << "ComputeAvailableFeatures(const " << Info.Target.getName()
- << "Subtarget *Subtarget) const {\n";
+ << "ComputeAvailableFeatures(uint64_t FB) const {\n";
OS << " unsigned Features = 0;\n";
for (std::map<Record*, SubtargetFeatureInfo*>::const_iterator
it = Info.SubtargetFeatures.begin(),
ie = Info.SubtargetFeatures.end(); it != ie; ++it) {
SubtargetFeatureInfo &SFI = *it->second;
- OS << " if (" << SFI.TheDef->getValueAsString("CondString")
- << ")\n";
+
+ OS << " if (";
+ std::string CondStorage = SFI.TheDef->getValueAsString("AssemblerCondString");
+ StringRef Conds = CondStorage;
+ std::pair<StringRef,StringRef> Comma = Conds.split(',');
+ bool First = true;
+ do {
+ if (!First)
+ OS << " && ";
+
+ bool Neg = false;
+ StringRef Cond = Comma.first;
+ if (Cond[0] == '!') {
+ Neg = true;
+ Cond = Cond.substr(1);
+ }
+
+ OS << "((FB & " << Info.Target.getName() << "::" << Cond << ")";
+ if (Neg)
+ OS << " == 0";
+ else
+ OS << " != 0";
+ OS << ")";
+
+ if (Comma.second.empty())
+ break;
+
+ First = false;
+ Comma = Comma.second.split(',');
+ } while (true);
+
+ OS << ")\n";
OS << " Features |= " << SFI.getEnumName() << ";\n";
}
OS << " return Features;\n";
return true;
}
+static const char *getMinimalTypeForRange(uint64_t Range) {
+ assert(Range < 0xFFFFFFFFULL && "Enum too large");
+ if (Range > 0xFFFF)
+ return "uint32_t";
+ if (Range > 0xFF)
+ return "uint16_t";
+ return "uint8_t";
+}
+
static void EmitCustomOperandParsing(raw_ostream &OS, CodeGenTarget &Target,
const AsmMatcherInfo &Info, StringRef ClassName) {
// Emit the static custom operand parsing table;
OS << "\n#ifdef GET_ASSEMBLER_HEADER\n";
OS << "#undef GET_ASSEMBLER_HEADER\n";
OS << " // This should be included into the middle of the declaration of\n";
- OS << " // your subclasses implementation of TargetAsmParser.\n";
- OS << " unsigned ComputeAvailableFeatures(const " <<
- Target.getName() << "Subtarget *Subtarget) const;\n";
- OS << " enum MatchResultTy {\n";
- OS << " Match_ConversionFail,\n";
- OS << " Match_InvalidOperand,\n";
- OS << " Match_MissingFeature,\n";
- OS << " Match_MnemonicFail,\n";
- OS << " Match_Success\n";
- OS << " };\n";
+ OS << " // your subclasses implementation of MCTargetAsmParser.\n";
+ OS << " unsigned ComputeAvailableFeatures(uint64_t FeatureBits) const;\n";
OS << " bool ConvertToMCInst(unsigned Kind, MCInst &Inst, "
<< "unsigned Opcode,\n"
<< " const SmallVectorImpl<MCParsedAsmOperand*> "
<< "&Operands);\n";
OS << " bool MnemonicIsValid(StringRef Mnemonic);\n";
- OS << " MatchResultTy MatchInstructionImpl(\n";
+ OS << " unsigned MatchInstructionImpl(\n";
OS << " const SmallVectorImpl<MCParsedAsmOperand*> &Operands,\n";
OS << " MCInst &Inst, unsigned &ErrorInfo);\n";
OS << " struct MatchEntry {\n";
OS << " unsigned Opcode;\n";
OS << " const char *Mnemonic;\n";
- OS << " ConversionKind ConvertFn;\n";
- OS << " MatchClassKind Classes[" << MaxNumOperands << "];\n";
- OS << " unsigned RequiredFeatures;\n";
+ OS << " " << getMinimalTypeForRange(Info.Matchables.size())
+ << " ConvertFn;\n";
+ OS << " " << getMinimalTypeForRange(Info.Classes.size())
+ << " Classes[" << MaxNumOperands << "];\n";
+ OS << " " << getMinimalTypeForRange(1ULL << Info.SubtargetFeatures.size())
+ << " RequiredFeatures;\n";
OS << " };\n\n";
OS << " // Predicate for searching for an opcode.\n";
OS << "}\n\n";
// Finally, build the match function.
- OS << Target.getName() << ClassName << "::MatchResultTy "
+ OS << "unsigned "
<< Target.getName() << ClassName << "::\n"
<< "MatchInstructionImpl(const SmallVectorImpl<MCParsedAsmOperand*>"
<< " &Operands,\n";
OS << " }\n\n";
OS << " // Some state to try to produce better error messages.\n";
- OS << " bool HadMatchOtherThanFeatures = false;\n\n";
+ OS << " bool HadMatchOtherThanFeatures = false;\n";
+ OS << " bool HadMatchOtherThanPredicate = false;\n";
+ OS << " unsigned RetCode = Match_InvalidOperand;\n";
OS << " // Set ErrorInfo to the operand that mismatches if it is\n";
OS << " // wrong for all instances of the instruction.\n";
OS << " ErrorInfo = ~0U;\n";
OS << " OperandsValid = (it->Classes[i] == " <<"InvalidMatchClass);\n";
OS << " break;\n";
OS << " }\n";
- OS << " if (ValidateOperandClass(Operands[i+1], it->Classes[i]))\n";
+ OS << " if (ValidateOperandClass(Operands[i+1], "
+ "(MatchClassKind)it->Classes[i]))\n";
OS << " continue;\n";
OS << " // If this operand is broken for all of the instances of this\n";
OS << " // mnemonic, keep track of it so we can report loc info.\n";
OS << " return Match_ConversionFail;\n";
OS << "\n";
+ // Verify the instruction with the target-specific match predicate function.
+ OS << " // We have a potential match. Check the target predicate to\n"
+ << " // handle any context sensitive constraints.\n"
+ << " unsigned MatchResult;\n"
+ << " if ((MatchResult = checkTargetMatchPredicate(Inst)) !="
+ << " Match_Success) {\n"
+ << " Inst.clear();\n"
+ << " RetCode = MatchResult;\n"
+ << " HadMatchOtherThanPredicate = true;\n"
+ << " continue;\n"
+ << " }\n\n";
+
// Call the post-processing function, if used.
std::string InsnCleanupFn =
AsmParser->getValueAsString("AsmParserInstCleanup");
OS << " }\n\n";
OS << " // Okay, we had no match. Try to return a useful error code.\n";
- OS << " if (HadMatchOtherThanFeatures) return Match_MissingFeature;\n";
- OS << " return Match_InvalidOperand;\n";
+ OS << " if (HadMatchOtherThanPredicate || !HadMatchOtherThanFeatures)";
+ OS << " return RetCode;\n";
+ OS << " return Match_MissingFeature;\n";
OS << "}\n\n";
if (Info.OperandMatchInfo.size())
projects / oota-llvm.git / blobdiff