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[1/7] Preprocessor cleanup 

https://gcc.gnu.org/ml/gcc-patches/2018-10/msg02037.html
	* directives.c (DIRECTIVE_TABLE): Drop historical frequency
	comments.
	* files.c (_cpp_stack_file): Fix indentation.

From-SVN: r265685
This commit is contained in:
Nathan Sidwell 2018-10-31 14:41:35 +00:00 committed by Nathan Sidwell
parent d5e33619bf
commit ff65e98035
3 changed files with 29 additions and 28 deletions
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6
libcpp/ChangeLog
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@ -1,3 +1,9 @@
2018-10-31 Nathan Sidwell <nathan@acm.org>
* directives.c (DIRECTIVE_TABLE): Drop historical frequency
comments.
* files.c (_cpp_stack_file): Fix indentation.
2018-10-17 Joseph Myers <joseph@codesourcery.com>
* include/cpplib.h (enum c_lang): Add CLK_GNUC2X and CLK_STDC2X.

49
libcpp/directives.c
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@ -133,35 +133,30 @@ static void do_pragma_push_macro (cpp_reader *);
static void do_pragma_pop_macro (cpp_reader *);
static void cpp_pop_definition (cpp_reader *, struct def_pragma_macro *);
/* This is the table of directive handlers. It is ordered by
frequency of occurrence; the numbers at the end are directive
counts from all the source code I have lying around (egcs and libc
CVS as of 1999-05-18, plus grub-0.5.91, linux-2.2.9, and
pcmcia-cs-3.0.9). This is no longer important as directive lookup
is now O(1). All extensions other than #warning, #include_next,
and #import are deprecated. The name is where the extension
appears to have come from. */
/* This is the table of directive handlers. All extensions other than
#warning, #include_next, and #import are deprecated. The name is
where the extension appears to have come from. */
#define DIRECTIVE_TABLE \
D(define, T_DEFINE = 0, KANDR, IN_I) /* 270554 */ \
D(include, T_INCLUDE, KANDR, INCL | EXPAND) /* 52262 */ \
D(endif, T_ENDIF, KANDR, COND) /* 45855 */ \
D(ifdef, T_IFDEF, KANDR, COND | IF_COND) /* 22000 */ \
D(if, T_IF, KANDR, COND | IF_COND | EXPAND) /* 18162 */ \
D(else, T_ELSE, KANDR, COND) /* 9863 */ \
D(ifndef, T_IFNDEF, KANDR, COND | IF_COND) /* 9675 */ \
D(undef, T_UNDEF, KANDR, IN_I) /* 4837 */ \
D(line, T_LINE, KANDR, EXPAND) /* 2465 */ \
D(elif, T_ELIF, STDC89, COND | EXPAND) /* 610 */ \
D(error, T_ERROR, STDC89, 0) /* 475 */ \
D(pragma, T_PRAGMA, STDC89, IN_I) /* 195 */ \
D(warning, T_WARNING, EXTENSION, 0) /* 22 */ \
D(include_next, T_INCLUDE_NEXT, EXTENSION, INCL | EXPAND) /* 19 */ \
D(ident, T_IDENT, EXTENSION, IN_I) /* 11 */ \
D(import, T_IMPORT, EXTENSION, INCL | EXPAND) /* 0 ObjC */ \
D(assert, T_ASSERT, EXTENSION, DEPRECATED) /* 0 SVR4 */ \
D(unassert, T_UNASSERT, EXTENSION, DEPRECATED) /* 0 SVR4 */ \
D(sccs, T_SCCS, EXTENSION, IN_I) /* 0 SVR4? */
D(define, T_DEFINE = 0, KANDR, IN_I) \
D(include, T_INCLUDE, KANDR, INCL | EXPAND) \
D(endif, T_ENDIF, KANDR, COND) \
D(ifdef, T_IFDEF, KANDR, COND | IF_COND) \
D(if, T_IF, KANDR, COND | IF_COND | EXPAND) \
D(else, T_ELSE, KANDR, COND) \
D(ifndef, T_IFNDEF, KANDR, COND | IF_COND) \
D(undef, T_UNDEF, KANDR, IN_I) \
D(line, T_LINE, KANDR, EXPAND) \
D(elif, T_ELIF, STDC89, COND | EXPAND) \
D(error, T_ERROR, STDC89, 0) \
D(pragma, T_PRAGMA, STDC89, IN_I) \
D(warning, T_WARNING, EXTENSION, 0) \
D(include_next, T_INCLUDE_NEXT, EXTENSION, INCL | EXPAND) \
D(ident, T_IDENT, EXTENSION, IN_I) \
D(import, T_IMPORT, EXTENSION, INCL | EXPAND) /* ObjC */ \
D(assert, T_ASSERT, EXTENSION, DEPRECATED) /* SVR4 */ \
D(unassert, T_UNASSERT, EXTENSION, DEPRECATED) /* SVR4 */ \
D(sccs, T_SCCS, EXTENSION, IN_I) /* SVR4? */
/* #sccs is synonymous with #ident. */
#define do_sccs do_ident

2
libcpp/files.c
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@ -898,7 +898,7 @@ _cpp_stack_file (cpp_reader *pfile, _cpp_file *file, bool import,
int sysp;
if (!should_stack_file (pfile, file, import, loc))
return false;
return false;
if (pfile->buffer == NULL || file->dir == NULL)
sysp = 0;