Do not allow empty label names.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18743 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/AsmParser/Lexer.l b/lib/AsmParser/Lexer.l
index da875be34bd7b859df585670a86016e5c1aa2cd2..e39d224f0ceb806ef491bc68d8f8fc01ce5a36ed 100644 (file)
--- a/lib/AsmParser/Lexer.l
+++ b/lib/AsmParser/Lexer.l
@@ -139,7 +139,7 @@ VarID       %[-a-zA-Z$._][-a-zA-Z$._0-9]*
 
 /* Label identifiers end with a colon */
 Label       [-a-zA-Z$._0-9]+:
-QuoteLabel \"[^\"]*\":
+QuoteLabel \"[^\"]+\":
 
 /* Quoted names can contain any character except " and \ */
 StringConstant \"[^\"]*\"