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author | Benjamin Kramer <benny.kra@googlemail.com> | 2011-10-06 18:23:56 +0000 |
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committer | Benjamin Kramer <benny.kra@googlemail.com> | 2011-10-06 18:23:56 +0000 |
commit | 37d42af584f07c78d990a8f1bb128046aab2182d (patch) | |
tree | 942e34300ac5736508efb888be06d6d1f3c435e1 /lib/TableGen | |
parent | c2d18f8929770cdcb8329e0e14e3a37ba068059a (diff) | |
download | external_llvm-37d42af584f07c78d990a8f1bb128046aab2182d.zip external_llvm-37d42af584f07c78d990a8f1bb128046aab2182d.tar.gz external_llvm-37d42af584f07c78d990a8f1bb128046aab2182d.tar.bz2 |
Simplify code. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141299 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/TableGen')
-rw-r--r-- | lib/TableGen/TGLexer.cpp | 50 |
1 files changed, 24 insertions, 26 deletions
diff --git a/lib/TableGen/TGLexer.cpp b/lib/TableGen/TGLexer.cpp index fec30d7..55bf522 100644 --- a/lib/TableGen/TGLexer.cpp +++ b/lib/TableGen/TGLexer.cpp @@ -208,40 +208,38 @@ tgtok::TokKind TGLexer::LexVarName() { tgtok::TokKind TGLexer::LexIdentifier() { // The first letter is [a-zA-Z_#]. const char *IdentStart = TokStart; - + // Match the rest of the identifier regex: [0-9a-zA-Z_#]* while (isalpha(*CurPtr) || isdigit(*CurPtr) || *CurPtr == '_' || *CurPtr == '#') ++CurPtr; - - + // Check to see if this identifier is a keyword. - unsigned Len = CurPtr-IdentStart; - - if (Len == 3 && !memcmp(IdentStart, "int", 3)) return tgtok::Int; - if (Len == 3 && !memcmp(IdentStart, "bit", 3)) return tgtok::Bit; - if (Len == 4 && !memcmp(IdentStart, "bits", 4)) return tgtok::Bits; - if (Len == 6 && !memcmp(IdentStart, "string", 6)) return tgtok::String; - if (Len == 4 && !memcmp(IdentStart, "list", 4)) return tgtok::List; - if (Len == 4 && !memcmp(IdentStart, "code", 4)) return tgtok::Code; - if (Len == 3 && !memcmp(IdentStart, "dag", 3)) return tgtok::Dag; - - if (Len == 5 && !memcmp(IdentStart, "class", 5)) return tgtok::Class; - if (Len == 3 && !memcmp(IdentStart, "def", 3)) return tgtok::Def; - if (Len == 8 && !memcmp(IdentStart, "multidef", 8)) return tgtok::MultiDef; - if (Len == 4 && !memcmp(IdentStart, "defm", 4)) return tgtok::Defm; - if (Len == 10 && !memcmp(IdentStart, "multiclass", 10)) - return tgtok::MultiClass; - if (Len == 5 && !memcmp(IdentStart, "field", 5)) return tgtok::Field; - if (Len == 3 && !memcmp(IdentStart, "let", 3)) return tgtok::Let; - if (Len == 2 && !memcmp(IdentStart, "in", 2)) return tgtok::In; - - if (Len == 7 && !memcmp(IdentStart, "include", 7)) { + StringRef Str(IdentStart, CurPtr-IdentStart); + + if (Str == "int") return tgtok::Int; + if (Str == "bit") return tgtok::Bit; + if (Str == "bits") return tgtok::Bits; + if (Str == "string") return tgtok::String; + if (Str == "list") return tgtok::List; + if (Str == "code") return tgtok::Code; + if (Str == "dag") return tgtok::Dag; + + if (Str == "class") return tgtok::Class; + if (Str == "def") return tgtok::Def; + if (Str == "multidef") return tgtok::MultiDef; + if (Str == "defm") return tgtok::Defm; + if (Str == "multiclass") return tgtok::MultiClass; + if (Str == "field") return tgtok::Field; + if (Str == "let") return tgtok::Let; + if (Str == "in") return tgtok::In; + + if (Str == "include") { if (LexInclude()) return tgtok::Error; return Lex(); } - - CurStrVal.assign(IdentStart, CurPtr); + + CurStrVal.assign(Str.begin(), Str.end()); return tgtok::Id; } |