forked from OSchip/llvm-project
Allow multiclass def names to contain "#NAME"" where TableGen replaces
#NAME# with the name of the defm instantiating the multiclass. This is useful for AVX instruction naming where a "V" prefix is standard throughout the ISA. For example: multiclass SSE_AVX_Inst<...> { def SS : Instr<...>; def SD : Instr<...>; def PS : Instr<...>; def PD : Instr<...>; def V#NAME#SS : Instr<...>; def V#NAME#SD : Instr<...>; def V#NAME#PS : Instr<...>; def V#NAME#PD : Instr<...>; } defm ADD : SSE_AVX_Inst<...>; Results in ADDSS ADDSD ADDPS ADDPD VADDSS VADDSD VADDPS VADDPD llvm-svn: 70979
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@ -0,0 +1,12 @@
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// RUN: tblgen %s | grep WorldHelloCC | count 1
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class C<string n> {
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string name = n;
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}
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multiclass Names<string n, string m> {
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def CC : C<n>;
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def World#NAME#CC : C<m>;
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}
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defm Hello : Names<"hello", "world">;
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@ -98,7 +98,7 @@ tgtok::TokKind TGLexer::LexToken() {
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switch (CurChar) {
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switch (CurChar) {
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default:
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default:
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// Handle letters: [a-zA-Z_]
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// Handle letters: [a-zA-Z_]
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if (isalpha(CurChar) || CurChar == '_')
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if (isalpha(CurChar) || CurChar == '_' || CurChar == '#')
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return LexIdentifier();
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return LexIdentifier();
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// Unknown character, emit an error.
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// Unknown character, emit an error.
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@ -220,8 +220,20 @@ tgtok::TokKind TGLexer::LexIdentifier() {
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const char *IdentStart = TokStart;
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const char *IdentStart = TokStart;
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// Match the rest of the identifier regex: [0-9a-zA-Z_]*
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// Match the rest of the identifier regex: [0-9a-zA-Z_]*
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while (isalpha(*CurPtr) || isdigit(*CurPtr) || *CurPtr == '_')
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while (isalpha(*CurPtr) || isdigit(*CurPtr) || *CurPtr == '_'
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|| *CurPtr == '#') {
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// If this contains a '#', make sure it's value
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if (*CurPtr == '#') {
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if (strncmp(CurPtr, "#NAME#", 6) != 0) {
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return tgtok::Error;
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}
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CurPtr += 6;
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}
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else {
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++CurPtr;
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++CurPtr;
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}
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}
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// Check to see if this identifier is a keyword.
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// Check to see if this identifier is a keyword.
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unsigned Len = CurPtr-IdentStart;
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unsigned Len = CurPtr-IdentStart;
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@ -1609,9 +1609,18 @@ bool TGParser::ParseDefm() {
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for (unsigned i = 0, e = MC->DefPrototypes.size(); i != e; ++i) {
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for (unsigned i = 0, e = MC->DefPrototypes.size(); i != e; ++i) {
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Record *DefProto = MC->DefPrototypes[i];
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Record *DefProto = MC->DefPrototypes[i];
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// Add in the defm name
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std::string DefName = DefProto->getName();
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std::string::size_type idx = DefName.find("#NAME#");
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if (idx != std::string::npos) {
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DefName.replace(idx, 6, DefmPrefix);
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}
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else {
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// Add the suffix to the defm name to get the new name.
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// Add the suffix to the defm name to get the new name.
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Record *CurRec = new Record(DefmPrefix + DefProto->getName(),
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DefName = DefmPrefix + DefName;
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DefmPrefixLoc);
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}
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Record *CurRec = new Record(DefName, DefmPrefixLoc);
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SubClassReference Ref;
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SubClassReference Ref;
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Ref.RefLoc = DefmPrefixLoc;
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Ref.RefLoc = DefmPrefixLoc;
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