glibc/sysdeps/riscv
Christoph Müllner 3d6fcf1bd7 riscv: Add support for XTheadBb in string-fz[a,i].h
XTheadBb has similar instructions like Zbb, which allow optimized
string processing:
* th.ff0: find-first zero is a CLZ instruction.
* th.tstnbz: Similar like orc.b, but with a bit-inverted result.

The instructions are documented here:
  https://github.com/T-head-Semi/thead-extension-spec/tree/master/xtheadbb

These instructions can be found in the T-Head C906 and the C910.

Tested with the string tests.

Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2023-09-06 09:27:43 -03:00
..
bits Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
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rv32 Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
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rvd riscv: Update rvd libm test ulps 2023-07-22 15:55:33 +02:00
rvf Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
sys Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
__longjmp.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
bsd-_setjmp.c
bsd-setjmp.c
configure configure: Use autoconf 2.71 2023-07-17 10:08:10 -04:00
configure.ac
dl-irel.h Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
dl-machine.h Revert "riscv: Resolve symbols directly for symbols with STO_RISCV_VARIANT_CC." 2023-05-07 14:16:03 +02:00
dl-relocate-ld.h Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
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Implies
jmpbuf-offsets.h Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
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linkmap.h
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Makefile
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preconfigure configure: Use autoconf 2.71 2023-07-17 10:08:10 -04:00
preconfigure.ac
setjmp.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
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start.S Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
string-fza.h riscv: Add support for XTheadBb in string-fz[a,i].h 2023-09-06 09:27:43 -03:00
string-fzi.h riscv: Add support for XTheadBb in string-fz[a,i].h 2023-09-06 09:27:43 -03:00
tininess.h
tst-audit.h Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00