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| author | Stefan Liebler <stli@linux.vnet.ibm.com> | 2016-05-25 17:18:05 +0200 |
|---|---|---|
| committer | Stefan Liebler <stli@linux.vnet.ibm.com> | 2016-05-25 17:18:05 +0200 |
| commit | 421c5278d83e72740150259960a431706ac343f9 (patch) | |
| tree | 41770dca42890366f3383bdc7cc298e2b290bd9c /ChangeLog | |
| parent | 81c6380887c6d62c56e5f0f85a241f759f58b2fd (diff) | |
| download | glibc-421c5278d83e72740150259960a431706ac343f9.tar glibc-421c5278d83e72740150259960a431706ac343f9.tar.gz glibc-421c5278d83e72740150259960a431706ac343f9.tar.bz2 glibc-421c5278d83e72740150259960a431706ac343f9.zip | |
S390: Optimize utf8-utf32 module.
This patch reworks the s390 specific module to convert between utf8 and utf32.
Now ifunc is used to choose either the c or etf3eh (with convert utf
instruction) variants at runtime.
Furthermore a new vector variant for z13 is introduced which will be build
and chosen if vector support is available at build / runtime.
The vector variants optimize input of 1byte utf8 characters. The convert utf
instruction is used if a multibyte utf8 character is found.
This patch also fixes some whitespace errors. The c variants are rejecting
UTF-16 surrogates and values above 0x10ffff now.
Furthermore, the etf3eh variants are handling the "UTF-xx//IGNORE" case now.
Before they ignored the ignore-case and always stopped at an error.
ChangeLog:
* sysdeps/s390/s390-64/utf8-utf32-z9.c: Use ifunc to select c, etf3eh
or new vector loop-variant.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 5 |
1 files changed, 5 insertions, 0 deletions
@@ -1,5 +1,10 @@ 2016-05-25 Stefan Liebler <stli@linux.vnet.ibm.com> + * sysdeps/s390/s390-64/utf8-utf32-z9.c: Use ifunc to select c, etf3eh + or new vector loop-variant. + +2016-05-25 Stefan Liebler <stli@linux.vnet.ibm.com> + * sysdeps/s390/s390-64/iso-8859-1_cp037_z900.c (TROO_LOOP): Rename to TR_LOOP and usage of tr instead of troo instruction. |