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-rw-r--r--lib/MC/MCParser/AsmLexer.cpp23
1 files changed, 7 insertions, 16 deletions
diff --git a/lib/MC/MCParser/AsmLexer.cpp b/lib/MC/MCParser/AsmLexer.cpp
index f157a89..1183312 100644
--- a/lib/MC/MCParser/AsmLexer.cpp
+++ b/lib/MC/MCParser/AsmLexer.cpp
@@ -69,26 +69,16 @@ int AsmLexer::getNextChar() {
}
}
-/// LexIdentifier: [a-zA-Z_.$][a-zA-Z0-9_$.@]*
-/// LexIdentifier: .
-/// LexIdentifier: $
+/// LexIdentifier: [a-zA-Z_.][a-zA-Z0-9_$.@]*
AsmToken AsmLexer::LexIdentifier() {
while (isalnum(*CurPtr) || *CurPtr == '_' || *CurPtr == '$' ||
*CurPtr == '.' || *CurPtr == '@')
++CurPtr;
// Handle . as a special case.
- if (CurPtr == TokStart+1)
- if (TokStart[0] == '.')
- return AsmToken(AsmToken::Dot, StringRef(TokStart, 1));
-
- // Handle $ as a special case. $foo is an identifier, $42 is not.
- if (TokStart[0] == '$' &&
- (CurPtr-TokStart == 1 || isdigit(TokStart[1]) || TokStart[1] == '"')) {
- CurPtr = TokStart+1;
- return AsmToken(AsmToken::Dollar, StringRef(TokStart, 1));
- }
-
+ if (CurPtr == TokStart+1 && TokStart[0] == '.')
+ return AsmToken(AsmToken::Dot, StringRef(TokStart, 1));
+
return AsmToken(AsmToken::Identifier, StringRef(TokStart, CurPtr - TokStart));
}
@@ -262,8 +252,8 @@ AsmToken AsmLexer::LexToken() {
switch (CurChar) {
default:
- // Handle identifier: [a-zA-Z_.$][a-zA-Z0-9_$.@]*
- if (isalpha(CurChar) || CurChar == '_' || CurChar == '.' || CurChar == '$')
+ // Handle identifier: [a-zA-Z_.][a-zA-Z0-9_$.@]*
+ if (isalpha(CurChar) || CurChar == '_' || CurChar == '.')
return LexIdentifier();
// Unknown character, emit an error.
@@ -289,6 +279,7 @@ AsmToken AsmLexer::LexToken() {
case '}': return AsmToken(AsmToken::RCurly, StringRef(TokStart, 1));
case '*': return AsmToken(AsmToken::Star, StringRef(TokStart, 1));
case ',': return AsmToken(AsmToken::Comma, StringRef(TokStart, 1));
+ case '$': return AsmToken(AsmToken::Dollar, StringRef(TokStart, 1));
case '=':
if (*CurPtr == '=')
return ++CurPtr, AsmToken(AsmToken::EqualEqual, StringRef(TokStart, 2));