Remove CPP_PLACEMARKERs

	* cppexp.c (lex): Don't handle CPP_PLACEMARKER.
	* cpplex.c (_cpp_lex_token): Rename skip_newlines to next_bol
	* cpplib.c (skip_rest_of_line, check_eol, cpp_push_buffer):
	           Similarly.
	* cpplib.h: Remove CPP_PLACEMARKER.
	(struct lexer_state): Rename skip_newlines to next_bol.
	* cppmacro.c (stringify_arg): Don't handle CPP_PLACEMARKER.
	Simplify prev_white handling as a result.
	(paste_all_tokens): Don't worry about CPP_PLACEMARKERs.
	(parse_arg): Empty arguments are now empty, not CPP_PLACEMARKERs.
	(parse_args): Similarly.  Update argument count tests.
	(enter_macro_context): Return 2 to indicate an empty macro.
	(replace_args): Don't bother pre-expanding an empty argument.
	Handle placemarkers and ## extension during pre-expansion.
	(cpp_get_token): Handle empty macro expansions.  Don't worry
	about CPP_PLACEMARKERs.
	(_cpp_create_definition): Empty macros are now empty.
	(cpp_macro_defintion): Don't special case empty macros.
	* scan-decls.c: Don't bother with CPP_PLACEMARKERs.
	* c-lex.c: Similarly.

From-SVN: r37385

1 files changed, 0 insertions, 4 deletions

diff --git a/gcc/cppexp.c b/gcc/cppexp.c
index 55b633e..4814868 100644
--- a/gcc/cppexp.c
+++ b/gcc/cppexp.c
@@ -378,14 +378,10 @@ lex (pfile, skip_evaluation, token)
 {
   struct op op;
 
- retry:
   _cpp_get_token (pfile, token);
 
   switch (token->type)
     {
-    case CPP_PLACEMARKER:
-      goto retry;
-
     case CPP_INT:
     case CPP_NUMBER:
       return parse_number (pfile, token);