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| author | Bill Schmidt <wschmidt@linux.vnet.ibm.com> | 2013-11-18 16:21:42 +0000 |
|---|---|---|
| committer | William Schmidt <wschmidt@gcc.gnu.org> | 2013-11-18 16:21:42 +0000 |
| commit | aadce58599c613a7f23ec9e250497a6540cf64da (patch) | |
| tree | 2f0370e9e7b2d836fa9bd4cb064d46a8d6846278 /libcpp | |
| parent | ddf05af2ff25c6e199b05c8676d0509260d0b400 (diff) | |
| download | gcc-aadce58599c613a7f23ec9e250497a6540cf64da.tar.gz | |
lex.c (search_line_fast): Correct for little endian.
2013-11-18 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
* lex.c (search_line_fast): Correct for little endian.
From-SVN: r204970
Diffstat (limited to 'libcpp')
| -rw-r--r-- | libcpp/ChangeLog | 4 | ||||
| -rw-r--r-- | libcpp/lex.c | 9 |
2 files changed, 13 insertions, 0 deletions
diff --git a/libcpp/ChangeLog b/libcpp/ChangeLog index 5e38c4b5dff..c3391b4959d 100644 --- a/libcpp/ChangeLog +++ b/libcpp/ChangeLog @@ -1,3 +1,7 @@ +2013-11-18 Bill Schmidt <wschmidt@linux.vnet.ibm.com> + + * lex.c (search_line_fast): Correct for little endian. + 2013-11-15 Joseph Myers <joseph@codesourcery.com> * ucnid.tab: Add C11 and C11NOSTART data. diff --git a/libcpp/lex.c b/libcpp/lex.c index 99c2140c357..80829d69b98 100644 --- a/libcpp/lex.c +++ b/libcpp/lex.c @@ -559,8 +559,13 @@ search_line_fast (const uchar *s, const uchar *end ATTRIBUTE_UNUSED) beginning with all ones and shifting in zeros according to the mis-alignment. The LVSR instruction pulls the exact shift we want from the address. */ +#ifdef __BIG_ENDIAN__ mask = __builtin_vec_lvsr(0, s); mask = __builtin_vec_perm(zero, ones, mask); +#else + mask = __builtin_vec_lvsl(0, s); + mask = __builtin_vec_perm(ones, zero, mask); +#endif data &= mask; /* While altivec loads mask addresses, we still need to align S so @@ -624,7 +629,11 @@ search_line_fast (const uchar *s, const uchar *end ATTRIBUTE_UNUSED) /* L now contains 0xff in bytes for which we matched one of the relevant characters. We can find the byte index by finding its bit index and dividing by 8. */ +#ifdef __BIG_ENDIAN__ l = __builtin_clzl(l) >> 3; +#else + l = __builtin_ctzl(l) >> 3; +#endif return s + l; #undef N |