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0376ecb1
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2012-03-25T03:39:55
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Enable common subexpression optimization in GCC.
* lib/unitypes.in.h (_UC_ATTRIBUTE_CONST, _UC_ATTRIBUTE_PURE): New
macros.
* lib/unicase.in.h (uc_toupper, uc_tolower, uc_totitle): Declare with
GCC attribute 'const'.
(uc_locale_language): Declare with GCC attribute 'pure'.
* lib/unicase/caseprop.h (uc_is_cased, uc_is_case_ignorable): Declare
with GCC attribute 'const'.
* lib/unictype.in.h (uc_is_general_category_withtable,
uc_combining_class, uc_combining_class_name,
uc_combining_class_long_name, uc_bidi_class_name,
uc_bidi_category_name, uc_bidi_class_long_name, uc_bidi_class,
uc_bidi_category, uc_is_bidi_class, uc_is_bidi_category,
uc_decimal_value, uc_digit_value, uc_numeric_value,
uc_joining_type_name, uc_joining_type_long_name, uc_joining_type,
uc_joining_group_name, uc_joining_group, uc_is_property_*, uc_script,
uc_block, uc_is_c_whitespace, uc_is_java_whitespace,
uc_c_ident_category, uc_java_ident_category, uc_is_alnum, uc_is_alpha,
uc_is_cntrl, uc_is_digit, uc_is_graph, uc_is_lower, uc_is_print,
uc_is_punct, uc_is_space, uc_is_upper, uc_is_xdigit, uc_is_blank):
Declare with GCC attribute 'const'.
(uc_general_category_name, uc_general_category_long_name,
uc_general_category_byname, uc_general_category,
uc_is_general_category, uc_combining_class_byname,
uc_bidi_class_byname, uc_bidi_category_byname, uc_joining_type_byname,
uc_joining_group_byname, uc_script_byname, uc_is_script, uc_is_block):
Declare with GCC attribute 'pure'.
* lib/unigbrk.in.h (uc_graphemeclusterbreak_property,
uc_is_grapheme_break, u8_grapheme_next, u16_grapheme_next,
u32_grapheme_next, u8_grapheme_prev, u16_grapheme_prev,
u32_grapheme_prev, lib/uniname.in.h (unicode_name_character): Declare
with GCC attribute 'pure'.
* lib/uninorm.in.h (uc_composition): Declare with GCC attribute
'const'.
(uninorm_decomposing_form): Declare with GCC attribute 'pure'.
* lib/unistr.in.h (): Declare with GCC attribute 'const'.
(u8_check, u16_check, u32_check, u8_mblen, u16_mblen, u32_mblen,
u8_cmp, u16_cmp, u32_cmp, u8_cmp2, u16_cmp2, u32_cmp2, u8_chr, u16_chr,
u32_chr, u8_mbsnlen, u16_mbsnlen, u32_mbsnlen, u8_strmblen,
u16_strmblen, u32_strmblen, u8_strlen, u16_strlen, u32_strlen,
u8_strnlen, u16_strnlen, u32_strnlen, u8_strcmp_gnu, u8_strcmp,
u16_strcmp, u32_strcmp, u8_strncmp, u16_strncmp, u32_strncmp,
u8_strchr, u16_strchr, u32_strchr, u8_strrchr, u16_strrchr,
u32_strrchr, u8_strcspn, u16_strcspn, u32_strcspn, u8_strspn,
u16_strspn, u32_strspn, u8_strpbrk, u16_strpbrk, u32_strpbrk,
u8_strstr, u16_strstr, u32_strstr, u8_startswith, u16_startswith,
u32_startswith, u8_endswith, u16_endswith, u32_endswith): Declare with
GCC attribute 'pure'.
* lib/uniwbrk.in.h (uc_wordbreak_property): Declare with GCC attribute
'const'.
* lib/uniwidth.in.h (uc_width): Simplify declaration.
(u8_width, u16_width, u32_width, u8_strwidth, u16_strwidth,
u32_strwidth): Declare with GCC attribute 'pure'.
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9e62d63e
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2011-06-02T10:05:59
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mark functions with const and pure attributes
Mark functions per suggestions from gcc-4.6 when using these options:
-Wsuggest-attribute=pure -Wsuggest-attribute=const.
Use gnulib's _GL_ATTRIBUTE_PURE and _GL_ATTRIBUTE_CONST macros.
Follow these guidelines: when possible, apply the attribute to
an extern declaration, not to its definition. Apply it to the
definition only when the definition is static.
* lib/argmatch.h (argmatch, argmatch_to_argument): Mark.
* lib/argv-iter.h (argv_iter_n_args): Likewise.
* lib/base64.h (isbase64): Likewise.
* lib/basename-lgpl.c (last_component, base_len): Likewise.
* lib/c-ctype.h (c_isascii, c_isalnum, c_isalpha): Likewise.
(c_isblank, c_iscntrl, c_isdigit, c_islower, c_isgraph): Likewise.
(c_isprint, c_ispunct, c_isspace, c_isupper, c_isxdigit): Likewise.
(c_tolower, c_toupper): Likewise.
* lib/c-strcase.h (c_strcasecmp, c_strncasecmp): Likewise.
* lib/chdir-long.c (find_non_slash): Likewise.
* lib/dirname.h (base_len, dir_len, last_component): Likewise.
* lib/exclude.h (fnmatch_pattern_has_wildcards): Likewise.
* lib/file-type.h (file_type): Likewise.
* lib/filenamecat-lgpl.c (longest_relative_suffix): Likewise.
* lib/filevercmp.c (verrevcmp): Likewise.
* lib/freadahead.h (freadahead): Likewise.
* lib/fts.c (fts_maxarglen): Likewise.
* lib/hash-pjw.h (hash_pjw): Likewise.
* lib/hash-triple.h (triple_hash_no_name, triple_compare_ino_str):
* lib/hash.c (is_prime, next_prime): Likewise.
* lib/hash.c (hash_get_n_buckets, hash_get_n_buckets_used): Likewise.
(hash_get_n_entries, hash_get_max_bucket_length): Likewise.
(hash_table_ok, hash_get_first, hash_string): Likewise.
(compute_bucket_size): Likewise.
* lib/i-ring.h (i_ring_empty): Likewise.
* lib/isnan.c (isnanl): Likewise.
* lib/math.h (isnanl, rpl_isnanl): Likewise.
* lib/memcasecmp.h (memcasecmp): Likewise.
* lib/memchr2.h (memchr2): Likewise.
* lib/memcmp2.h (memcmp2): Likewise.
* lib/parse-datetime.y (lookup_zone): Likewise.
* lib/sockets.h (gl_sockets_startup, gl_sockets_cleanup)
[!WINDOWS_SOCKETS]: Likewise.
* lib/strnlen1.h (strnlen1): Likewise.
* lib/uniwidth.in.h (uc_width): Likewise, but since this is installed
as a public header by libunistring, it cannot depend on the macro
definitions of gnulib-common.m4, so open-code the __attribute__...
* lib/quotearg.c: Add pragma to avoid unwarranted suggestion from
gcc's -Wsuggest-attribute=pure for quoting_options_from_style.
(quoting_options_from_style): Add a comment.
* lib/propername.h (proper_name): Add a comment.
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