//
//===----------------------------------------------------------------------===//
-#include "OptParserEmitter.h"
-#include "Record.h"
+#include "llvm/TableGen/Error.h"
#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/Twine.h"
+#include "llvm/TableGen/Record.h"
+#include "llvm/TableGen/TableGenBackend.h"
+#include <cctype>
+#include <cstring>
+#include <map>
+
using namespace llvm;
+// Ordering on Info. The logic should match with the consumer-side function in
+// llvm/Option/OptTable.h.
static int StrCmpOptionName(const char *A, const char *B) {
- char a = *A, b = *B;
+ const char *X = A, *Y = B;
+ char a = tolower(*A), b = tolower(*B);
while (a == b) {
if (a == '\0')
- return 0;
+ return strcmp(A, B);
- a = *++A;
- b = *++B;
+ a = tolower(*++X);
+ b = tolower(*++Y);
}
if (a == '\0') // A is a prefix of B.
return (a < b) ? -1 : 1;
}
-static int CompareOptionRecords(const void *Av, const void *Bv) {
- const Record *A = *(Record**) Av;
- const Record *B = *(Record**) Bv;
-
- // Compare options by name first.
- if (int Cmp = StrCmpOptionName(A->getValueAsString("Name").c_str(),
- B->getValueAsString("Name").c_str()))
- return Cmp;
+static int CompareOptionRecords(Record *const *Av, Record *const *Bv) {
+ const Record *A = *Av;
+ const Record *B = *Bv;
+
+ // Sentinel options precede all others and are only ordered by precedence.
+ bool ASent = A->getValueAsDef("Kind")->getValueAsBit("Sentinel");
+ bool BSent = B->getValueAsDef("Kind")->getValueAsBit("Sentinel");
+ if (ASent != BSent)
+ return ASent ? -1 : 1;
+
+ // Compare options by name, unless they are sentinels.
+ if (!ASent)
+ if (int Cmp = StrCmpOptionName(A->getValueAsString("Name").c_str(),
+ B->getValueAsString("Name").c_str()))
+ return Cmp;
+
+ if (!ASent) {
+ std::vector<std::string> APrefixes = A->getValueAsListOfStrings("Prefixes");
+ std::vector<std::string> BPrefixes = B->getValueAsListOfStrings("Prefixes");
+
+ for (std::vector<std::string>::const_iterator APre = APrefixes.begin(),
+ AEPre = APrefixes.end(),
+ BPre = BPrefixes.begin(),
+ BEPre = BPrefixes.end();
+ APre != AEPre &&
+ BPre != BEPre;
+ ++APre, ++BPre) {
+ if (int Cmp = StrCmpOptionName(APre->c_str(), BPre->c_str()))
+ return Cmp;
+ }
+ }
// Then by the kind precedence;
int APrec = A->getValueAsDef("Kind")->getValueAsInt("Precedence");
int BPrec = B->getValueAsDef("Kind")->getValueAsInt("Precedence");
- assert(APrec != BPrec && "Options are equivalent!");
+ if (APrec == BPrec &&
+ A->getValueAsListOfStrings("Prefixes") ==
+ B->getValueAsListOfStrings("Prefixes")) {
+ PrintError(A->getLoc(), Twine("Option is equivalent to"));
+ PrintError(B->getLoc(), Twine("Other defined here"));
+ PrintFatalError("Equivalent Options found.");
+ }
return APrec < BPrec ? -1 : 1;
}
static const std::string getOptionName(const Record &R) {
// Use the record name unless EnumName is defined.
- if (dynamic_cast<UnsetInit*>(R.getValueInit("EnumName")))
+ if (isa<UnsetInit>(R.getValueInit("EnumName")))
return R.getName();
return R.getValueAsString("EnumName");
return OS;
}
-void OptParserEmitter::run(raw_ostream &OS) {
+/// OptParserEmitter - This tablegen backend takes an input .td file
+/// describing a list of options and emits a data structure for parsing and
+/// working with those options when given an input command line.
+namespace llvm {
+void EmitOptParser(RecordKeeper &Records, raw_ostream &OS) {
// Get the option groups and options.
const std::vector<Record*> &Groups =
Records.getAllDerivedDefinitions("OptionGroup");
std::vector<Record*> Opts = Records.getAllDerivedDefinitions("Option");
- if (GenDefs) {
- OS << "\
-//=== TableGen'erated File - Option Parsing Definitions ---------*- C++ -*-===//\n \
-//\n\
-// Option Parsing Definitions\n\
-//\n\
-// Automatically generated file, do not edit!\n\
-//\n\
-//===----------------------------------------------------------------------===//\n";
- } else {
- OS << "\
-//=== TableGen'erated File - Option Parsing Table ---------------*- C++ -*-===//\n \
-//\n\
-// Option Parsing Definitions\n\
-//\n\
-// Automatically generated file, do not edit!\n\
-//\n\
-//===----------------------------------------------------------------------===//\n";
- }
- OS << "\n";
+ emitSourceFileHeader("Option Parsing Definitions", OS);
array_pod_sort(Opts.begin(), Opts.end(), CompareOptionRecords);
- if (GenDefs) {
- OS << "#ifndef OPTION\n";
- OS << "#error \"Define OPTION prior to including this file!\"\n";
- OS << "#endif\n\n";
-
- OS << "/////////\n";
- OS << "// Groups\n\n";
- for (unsigned i = 0, e = Groups.size(); i != e; ++i) {
- const Record &R = *Groups[i];
-
- // Start a single option entry.
- OS << "OPTION(";
+ // Generate prefix groups.
+ typedef SmallVector<SmallString<2>, 2> PrefixKeyT;
+ typedef std::map<PrefixKeyT, std::string> PrefixesT;
+ PrefixesT Prefixes;
+ Prefixes.insert(std::make_pair(PrefixKeyT(), "prefix_0"));
+ unsigned CurPrefix = 0;
+ for (unsigned i = 0, e = Opts.size(); i != e; ++i) {
+ const Record &R = *Opts[i];
+ std::vector<std::string> prf = R.getValueAsListOfStrings("Prefixes");
+ PrefixKeyT prfkey(prf.begin(), prf.end());
+ unsigned NewPrefix = CurPrefix + 1;
+ if (Prefixes.insert(std::make_pair(prfkey, (Twine("prefix_") +
+ Twine(NewPrefix)).str())).second)
+ CurPrefix = NewPrefix;
+ }
- // The option string.
- OS << '"' << R.getValueAsString("Name") << '"';
+ // Dump prefixes.
- // The option identifier name.
- OS << ", "<< getOptionName(R);
+ OS << "/////////\n";
+ OS << "// Prefixes\n\n";
+ OS << "#ifdef PREFIX\n";
+ OS << "#define COMMA ,\n";
+ for (PrefixesT::const_iterator I = Prefixes.begin(), E = Prefixes.end();
+ I != E; ++I) {
+ OS << "PREFIX(";
- // The option kind.
- OS << ", Group";
+ // Prefix name.
+ OS << I->second;
- // The containing option group (if any).
- OS << ", ";
- if (const DefInit *DI = dynamic_cast<DefInit*>(R.getValueInit("Group")))
- OS << getOptionName(*DI->getDef());
- else
- OS << "INVALID";
+ // Prefix values.
+ OS << ", {";
+ for (PrefixKeyT::const_iterator PI = I->first.begin(),
+ PE = I->first.end(); PI != PE; ++PI) {
+ OS << "\"" << *PI << "\" COMMA ";
+ }
+ OS << "0})\n";
+ }
+ OS << "#undef COMMA\n";
+ OS << "#endif\n\n";
+
+ OS << "/////////\n";
+ OS << "// Groups\n\n";
+ OS << "#ifdef OPTION\n";
+ for (unsigned i = 0, e = Groups.size(); i != e; ++i) {
+ const Record &R = *Groups[i];
+
+ // Start a single option entry.
+ OS << "OPTION(";
+
+ // The option prefix;
+ OS << "0";
+
+ // The option string.
+ OS << ", \"" << R.getValueAsString("Name") << '"';
+
+ // The option identifier name.
+ OS << ", "<< getOptionName(R);
+
+ // The option kind.
+ OS << ", Group";
+
+ // The containing option group (if any).
+ OS << ", ";
+ if (const DefInit *DI = dyn_cast<DefInit>(R.getValueInit("Group")))
+ OS << getOptionName(*DI->getDef());
+ else
+ OS << "INVALID";
+
+ // The other option arguments (unused for groups).
+ OS << ", INVALID, 0, 0, 0";
+
+ // The option help text.
+ if (!isa<UnsetInit>(R.getValueInit("HelpText"))) {
+ OS << ",\n";
+ OS << " ";
+ write_cstring(OS, R.getValueAsString("HelpText"));
+ } else
+ OS << ", 0";
+
+ // The option meta-variable name (unused).
+ OS << ", 0)\n";
+ }
+ OS << "\n";
- // The other option arguments (unused for groups).
- OS << ", INVALID, 0, 0, 0, 0)\n";
+ OS << "//////////\n";
+ OS << "// Options\n\n";
+ for (unsigned i = 0, e = Opts.size(); i != e; ++i) {
+ const Record &R = *Opts[i];
+
+ // Start a single option entry.
+ OS << "OPTION(";
+
+ // The option prefix;
+ std::vector<std::string> prf = R.getValueAsListOfStrings("Prefixes");
+ OS << Prefixes[PrefixKeyT(prf.begin(), prf.end())] << ", ";
+
+ // The option string.
+ write_cstring(OS, R.getValueAsString("Name"));
+
+ // The option identifier name.
+ OS << ", "<< getOptionName(R);
+
+ // The option kind.
+ OS << ", " << R.getValueAsDef("Kind")->getValueAsString("Name");
+
+ // The containing option group (if any).
+ OS << ", ";
+ const ListInit *GroupFlags = nullptr;
+ if (const DefInit *DI = dyn_cast<DefInit>(R.getValueInit("Group"))) {
+ GroupFlags = DI->getDef()->getValueAsListInit("Flags");
+ OS << getOptionName(*DI->getDef());
+ } else
+ OS << "INVALID";
+
+ // The option alias (if any).
+ OS << ", ";
+ if (const DefInit *DI = dyn_cast<DefInit>(R.getValueInit("Alias")))
+ OS << getOptionName(*DI->getDef());
+ else
+ OS << "INVALID";
+
+ // The option alias arguments (if any).
+ // Emitted as a \0 separated list in a string, e.g. ["foo", "bar"]
+ // would become "foo\0bar\0". Note that the compiler adds an implicit
+ // terminating \0 at the end.
+ OS << ", ";
+ std::vector<std::string> AliasArgs = R.getValueAsListOfStrings("AliasArgs");
+ if (AliasArgs.size() == 0) {
+ OS << "0";
+ } else {
+ OS << "\"";
+ for (size_t i = 0, e = AliasArgs.size(); i != e; ++i)
+ OS << AliasArgs[i] << "\\0";
+ OS << "\"";
}
- OS << "\n";
-
- OS << "//////////\n";
- OS << "// Options\n\n";
- for (unsigned i = 0, e = Opts.size(); i != e; ++i) {
- const Record &R = *Opts[i];
-
- // Start a single option entry.
- OS << "OPTION(";
-
- // The option string.
- write_cstring(OS, R.getValueAsString("Name"));
-
- // The option identifier name.
- OS << ", "<< getOptionName(R);
-
- // The option kind.
- OS << ", " << R.getValueAsDef("Kind")->getValueAsString("Name");
-
- // The containing option group (if any).
- OS << ", ";
- if (const DefInit *DI = dynamic_cast<DefInit*>(R.getValueInit("Group")))
- OS << getOptionName(*DI->getDef());
- else
- OS << "INVALID";
-
- // The option alias (if any).
- OS << ", ";
- if (const DefInit *DI = dynamic_cast<DefInit*>(R.getValueInit("Alias")))
- OS << getOptionName(*DI->getDef());
- else
- OS << "INVALID";
-
- // The option flags.
- const ListInit *LI = R.getValueAsListInit("Flags");
- if (LI->empty()) {
- OS << ", 0";
- } else {
- OS << ", ";
- for (unsigned i = 0, e = LI->size(); i != e; ++i) {
- if (i)
- OS << " | ";
- OS << dynamic_cast<DefInit*>(LI->getElement(i))->getDef()->getName();
- }
- }
-
- // The option parameter field.
- OS << ", " << R.getValueAsInt("NumArgs");
-
- // The option help text.
- if (!dynamic_cast<UnsetInit*>(R.getValueInit("HelpText"))) {
- OS << ",\n";
- OS << " ";
- write_cstring(OS, R.getValueAsString("HelpText"));
- } else
- OS << ", 0";
-
- // The option meta-variable name.
- OS << ", ";
- if (!dynamic_cast<UnsetInit*>(R.getValueInit("MetaVarName")))
- write_cstring(OS, R.getValueAsString("MetaVarName"));
- else
- OS << "0";
-
- OS << ")\n";
+
+ // The option flags.
+ OS << ", ";
+ int NumFlags = 0;
+ const ListInit *LI = R.getValueAsListInit("Flags");
+ for (Init *I : *LI)
+ OS << (NumFlags++ ? " | " : "")
+ << cast<DefInit>(I)->getDef()->getName();
+ if (GroupFlags) {
+ for (Init *I : *GroupFlags)
+ OS << (NumFlags++ ? " | " : "")
+ << cast<DefInit>(I)->getDef()->getName();
}
+ if (NumFlags == 0)
+ OS << '0';
+
+ // The option parameter field.
+ OS << ", " << R.getValueAsInt("NumArgs");
+
+ // The option help text.
+ if (!isa<UnsetInit>(R.getValueInit("HelpText"))) {
+ OS << ",\n";
+ OS << " ";
+ write_cstring(OS, R.getValueAsString("HelpText"));
+ } else
+ OS << ", 0";
+
+ // The option meta-variable name.
+ OS << ", ";
+ if (!isa<UnsetInit>(R.getValueInit("MetaVarName")))
+ write_cstring(OS, R.getValueAsString("MetaVarName"));
+ else
+ OS << "0";
+
+ OS << ")\n";
}
+ OS << "#endif\n";
}
+} // end namespace llvm
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