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Add __builtin_expect in many places.

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This commit is contained in:
Ulrich Drepper 2000-06-06 21:35:37 +00:00
parent 9b6a9cee89
commit 019357d234
5 changed files with 53 additions and 55 deletions
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6
iconvdata/iso646.c
View File

@ -145,7 +145,7 @@ gconv_init (struct __gconv_step *step)
}
result = __GCONV_NOCONV;
if (dir != illegal_dir)
if (__builtin_expect (dir, from_iso646) != illegal_dir)
{
new_data = (struct iso646_data *) malloc (sizeof (struct iso646_data));
@ -404,7 +404,7 @@ gconv_end (struct __gconv_step *data)
\
/* Hopefully gcc can recognize that the following `if' is only true \
when we reach the default case in the `switch' statement. */ \
if (failure == __GCONV_ILLEGAL_INPUT) \
if (__builtin_expect (failure, __GCONV_OK) == __GCONV_ILLEGAL_INPUT) \
{ \
if (! ignore_errors_p ()) \
{ \
@ -881,7 +881,7 @@ gconv_end (struct __gconv_step *data)
break; \
} \
\
if (failure == __GCONV_ILLEGAL_INPUT) \
if (__builtin_expect (failure, __GCONV_OK) == __GCONV_ILLEGAL_INPUT) \
{ \
if (! ignore_errors_p ()) \
{ \

2
iconvdata/iso8859-1.c
View File

@ -45,7 +45,7 @@
#define BODY \
{ \
uint32_t ch = *((uint32_t *) inptr); \
if (ch > 0xff) \
if (__builtin_expect (ch, 0) > 0xff) \
{ \
/* We have an illegal character. */ \
if (! ignore_errors_p ()) \

20
iconvdata/iso_6937-2.c
View File

@ -399,13 +399,13 @@ static const char from_ucs4[][2] =
{ \
uint32_t ch = *inptr; \
\
if (ch >= 0xc1 && ch <= 0xcf) \
if (__builtin_expect (ch, 0) >= 0xc1 && ch <= 0xcf) \
{ \
/* Composed character. First test whether the next character \
is also available. */ \
int ch2; \
\
if (inptr + 1 >= inend) \
if (NEED_LENGTH_TEST && __builtin_expect (inptr + 1 >= inend, 0)) \
{ \
/* The second character is not available. Store the \
intermediate result. */ \
@ -415,7 +415,8 @@ static const char from_ucs4[][2] =
\
ch2 = inptr[1]; \
\
if (ch2 < 0x20 || ch2 >= 0x80) \
if (__builtin_expect (ch2, 0) < 0x20 \
|| __builtin_expect (ch2, 0) >= 0x80) \
{ \
/* This is illegal. */ \
if (! ignore_errors_p ()) \
@ -432,7 +433,7 @@ static const char from_ucs4[][2] =
\
ch = to_ucs4_comb[ch - 0xc1][ch2 - 0x20]; \
\
if (ch == 0) \
if (__builtin_expect (ch, 1) == 0) \
{ \
/* Illegal character. */ \
if (! ignore_errors_p ()) \
@ -453,7 +454,7 @@ static const char from_ucs4[][2] =
{ \
ch = to_ucs4[ch]; \
\
if (ch == 0 && *inptr != '\0') \
if (__builtin_expect (ch, 1) == 0 && *inptr != '\0') \
{ \
/* This is an illegal character. */ \
if (! ignore_errors_p ()) \
@ -487,7 +488,8 @@ static const char from_ucs4[][2] =
uint32_t ch = get32 (inptr); \
const char *cp; \
\
if (ch >= sizeof (from_ucs4) / sizeof (from_ucs4[0])) \
if (__builtin_expect (ch, 0) \
>= sizeof (from_ucs4) / sizeof (from_ucs4[0])) \
{ \
int fail = 0; \
switch (ch) \
@ -564,7 +566,7 @@ static const char from_ucs4[][2] =
fail = 1; \
} \
\
if (fail) \
if (__builtin_expect (fail, 0)) \
{ \
/* Illegal characters. */ \
if (! ignore_errors_p ()) \
@ -579,7 +581,7 @@ static const char from_ucs4[][2] =
continue; \
} \
} \
else if (from_ucs4[ch][0] == '\0' && ch != 0) \
else if (__builtin_expect (from_ucs4[ch][0], '\1') == '\0' && ch != 0) \
{ \
/* Illegal characters. */ \
if (! ignore_errors_p ()) \
@ -599,7 +601,7 @@ static const char from_ucs4[][2] =
/* Now test for a possible second byte and write this if possible. */ \
if (cp[1] != '\0') \
{ \
if (NEED_LENGTH_TEST && outptr >= outend) \
if (NEED_LENGTH_TEST && __builtin_expect (outptr >= outend, 0)) \
{ \
/* The result does not fit into the buffer. */ \
--outptr; \

20
iconvdata/iso_6937.c
View File

@ -391,13 +391,13 @@ static const char from_ucs4[][2] =
{ \
uint32_t ch = *inptr; \
\
if (ch >= 0xc1 && ch <= 0xcf) \
if (__builtin_expect (ch, 0) >= 0xc1 && ch <= 0xcf) \
{ \
/* Composed character. First test whether the next character \
is also available. */ \
int ch2; \
\
if (inptr + 1 >= inend) \
if (NEED_LENGTH_TEST && __builtin_expect (inptr + 1 >= inend, 0)) \
{ \
/* The second character is not available. Store the \
intermediate result. */ \
@ -407,7 +407,8 @@ static const char from_ucs4[][2] =
\
ch2 = inptr[1]; \
\
if (ch2 < 0x20 || ch2 >= 0x80) \
if (__builtin_expect (ch2, 0) < 0x20 \
|| __builtin_expect (ch2, 0) >= 0x80) \
{ \
/* This is illegal. */ \
if (! ignore_errors_p ()) \
@ -424,7 +425,7 @@ static const char from_ucs4[][2] =
\
ch = to_ucs4_comb[ch - 0xc1][ch2 - 0x20]; \
\
if (ch == 0) \
if (__builtin_expect (ch, 1) == 0) \
{ \
/* Illegal character. */ \
if (! ignore_errors_p ()) \
@ -445,7 +446,7 @@ static const char from_ucs4[][2] =
{ \
ch = to_ucs4[ch]; \
\
if (ch == 0 && *inptr != '\0') \
if (__builtin_expect (ch, 1) == 0 && *inptr != '\0') \
{ \
/* This is an illegal character. */ \
if (! ignore_errors_p ()) \
@ -479,7 +480,8 @@ static const char from_ucs4[][2] =
uint32_t ch = get32 (inptr); \
const char *cp; \
\
if (ch >= sizeof (from_ucs4) / sizeof (from_ucs4[0])) \
if (__builtin_expect (ch, 0) \
>= sizeof (from_ucs4) / sizeof (from_ucs4[0])) \
{ \
int fail = 0; \
switch (ch) \
@ -535,7 +537,7 @@ static const char from_ucs4[][2] =
fail = 1; \
} \
\
if (fail) \
if (__builtin_expect (fail, 0)) \
{ \
/* Illegal characters. */ \
if (! ignore_errors_p ()) \
@ -550,7 +552,7 @@ static const char from_ucs4[][2] =
continue; \
} \
} \
else if (from_ucs4[ch][0] == '\0' && ch != 0) \
else if (__builtin_expect (from_ucs4[ch][0], '\1') == '\0' && ch != 0) \
{ \
/* Illegal characters. */ \
if (! ignore_errors_p ()) \
@ -570,7 +572,7 @@ static const char from_ucs4[][2] =
/* Now test for a possible second byte and write this if possible. */ \
if (cp[1] != '\0') \
{ \
if (NEED_LENGTH_TEST && outptr >= outend) \
if (NEED_LENGTH_TEST && __builtin_expect (outptr >= outend, 0)) \
{ \
/* The result does not fit into the buffer. */ \
--outptr; \

52
iconvdata/johab.c
View File

@ -179,8 +179,10 @@ johab_sym_hanja_to_ucs (uint_fast32_t idx, uint_fast32_t c1, uint_fast32_t c2)
0xd831-0xd87e and 0xd891-0xd8fe are user-defined area */ \
else \
{ \
if (ch > 0xf9 || ch == 0xdf || (ch > 0x7e && ch < 0x84) \
|| (ch > 0xd3 && ch < 0xd9)) \
if (__builtin_expect (ch, 0) > 0xf9 \
|| __builtin_expect (ch, 0) == 0xdf \
|| (__builtin_expect (ch, 0) > 0x7e && ch < 0x84) \
|| (__builtin_expect (ch, 0) > 0xd3 && ch < 0xd9)) \
{ \
/* These are illegal. */ \
if (! ignore_errors_p ()) \
@ -201,7 +203,7 @@ johab_sym_hanja_to_ucs (uint_fast32_t idx, uint_fast32_t c1, uint_fast32_t c2)
uint32_t ch2; \
uint_fast32_t idx; \
\
if (NEED_LENGTH_TEST && inptr + 1 >= inend) \
if (NEED_LENGTH_TEST && __builtin_expect (inptr + 1 >= inend, 0)) \
{ \
/* The second character is not available. Store the \
intermediate result. */ \
@ -211,7 +213,7 @@ johab_sym_hanja_to_ucs (uint_fast32_t idx, uint_fast32_t c1, uint_fast32_t c2)
\
ch2 = inptr[1]; \
idx = ch * 256 + ch2; \
if (ch <= 0xd3) \
if (__builtin_expect (ch, 0) <= 0xd3) \
{ \
/* Hangul */ \
uint_fast32_t i, m, f; \
@ -220,7 +222,9 @@ johab_sym_hanja_to_ucs (uint_fast32_t idx, uint_fast32_t c1, uint_fast32_t c2)
m = mid[(idx & 0x03e0) >> 5]; \
f = final[idx & 0x001f]; \
\
if (i == -1 || m == -1 || f == -1) \
if (__builtin_expect (i, 0) == -1 \
|| __builtin_expect (m, 0) == -1 \
|| __builtin_expect (f, 0) == -1) \
{ \
/* This is illegal. */ \
if (! ignore_errors_p ()) \
@ -240,7 +244,8 @@ johab_sym_hanja_to_ucs (uint_fast32_t idx, uint_fast32_t c1, uint_fast32_t c2)
ch = init_to_ucs[i - 1]; \
else if (i == 0 && m > 0 && f == 0) \
ch = 0x314e + m; /* 0x314f + m - 1 */ \
else if (i == 0 && m == 0 && f > 0) \
else if (__builtin_expect (i | m, 0) == 0 \
&& __builtin_expect (f, 1) > 0) \
ch = final_to_ucs[f - 1]; /* round trip?? */ \
else \
{ \
@ -259,7 +264,11 @@ johab_sym_hanja_to_ucs (uint_fast32_t idx, uint_fast32_t c1, uint_fast32_t c2)
} \
else \
{ \
if (ch2 < 0x31 || (ch2 > 0x7e && ch2 < 0x91) || ch2 == 0xff) \
if (__builtin_expect (ch2, 0x31) < 0x31 \
|| (__builtin_expect (ch2, 0x7e) > 0x7e && ch2 < 0x91) \
|| __builtin_expect (ch2, 0) == 0xff \
|| (__builtin_expect (ch, 0) == 0xda \
&& ch2 > 0xa0 && ch2 < 0xd4)) \
{ \
/* This is illegal. */ \
if (! ignore_errors_p ()) \
@ -273,21 +282,6 @@ johab_sym_hanja_to_ucs (uint_fast32_t idx, uint_fast32_t c1, uint_fast32_t c2)
++*converted; \
continue; \
} \
else if (ch == 0xda && ch2 > 0xa0 && ch2 < 0xd4) \
{ \
/* This is illegal. Modern Hangul Jaso is defined \
elsewhere in Johab */ \
if (! ignore_errors_p ()) \
{ \
/* This is an illegal character. */ \
result = __GCONV_ILLEGAL_INPUT; \
break; \
} \
\
++inptr; \
++*converted; \
continue; \
} \
else \
{ \
ch = johab_sym_hanja_to_ucs (idx, ch, ch2); \
@ -304,7 +298,7 @@ johab_sym_hanja_to_ucs (uint_fast32_t idx, uint_fast32_t c1, uint_fast32_t c2)
} \
} \
\
if (ch == 0) \
if (__builtin_expect (ch, 1) == 0) \
{ \
/* This is an illegal character. */ \
if (! ignore_errors_p ()) \
@ -356,7 +350,7 @@ johab_sym_hanja_to_ucs (uint_fast32_t idx, uint_fast32_t c1, uint_fast32_t c2)
{ \
if (ch >= 0xac00 && ch <= 0xd7a3) \
{ \
if (NEED_LENGTH_TEST && outptr + 2 > outend) \
if (NEED_LENGTH_TEST && __builtin_expect (outptr + 2 > outend, 0))\
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
@ -377,7 +371,7 @@ johab_sym_hanja_to_ucs (uint_fast32_t idx, uint_fast32_t c1, uint_fast32_t c2)
{ \
ch = jamo_from_ucs_table[ch - 0x3131]; \
\
if (NEED_LENGTH_TEST && outptr + 2 > outend) \
if (NEED_LENGTH_TEST && __builtin_expect (outptr + 2 > outend, 0))\
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
@ -395,12 +389,12 @@ johab_sym_hanja_to_ucs (uint_fast32_t idx, uint_fast32_t c1, uint_fast32_t c2)
written = ucs4_to_ksc5601_hanja (ch, outptr, \
(NEED_LENGTH_TEST \
? outend - outptr : 2)); \
if (NEED_LENGTH_TEST && written == 0) \
if (NEED_LENGTH_TEST && __builtin_expect (written, 1) == 0) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
if (written == __UNKNOWN_10646_CHAR) \
if (__builtin_expect (written, 0) == __UNKNOWN_10646_CHAR) \
{ \
if (! ignore_errors_p ()) \
{ \
@ -432,12 +426,12 @@ johab_sym_hanja_to_ucs (uint_fast32_t idx, uint_fast32_t c1, uint_fast32_t c2)
written = ucs4_to_ksc5601_sym (ch, outptr, \
(NEED_LENGTH_TEST \
? outend - outptr : 2)); \
if (NEED_LENGTH_TEST && written == 0) \
if (NEED_LENGTH_TEST && __builtin_expect (written, 1) == 0) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
if (written == __UNKNOWN_10646_CHAR) \
if (__builtin_expect (written, 1) == __UNKNOWN_10646_CHAR) \
{ \
if (! ignore_errors_p ()) \
{ \