Commit Graph

6 Commits

Author SHA1 Message Date
Wainer dos Santos Moschetta
b6a6622209 powerpc: refactor memcmp and memmove IFUNC.
Clean up the IFUNC implementations for powerpc in order to remove
unneeded macro definitions.

Tested on ppc64le with and without --disable-multi-arch flag.

	* sysdeps/powerpc/powerpc64/multiarch/memcmp-power4.S: Define the
	implementation-specific function name and remove unneeded
	macros definition.
	* sysdeps/powerpc/powerpc64/multiarch/memcmp-power7.S: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/memmove-power7.S: Likewise.
	* sysdeps/powerpc/powerpc64/power4/memcmp.S: Set a default function
	name if not defined and pass as parameter to macros accordingly.
	* sysdeps/powerpc/powerpc64/power7/memcmp.S: Likewise.
	* sysdeps/powerpc/powerpc64/power7/memmove.S: Likewise.
2017-04-11 17:13:56 -03:00
Joseph Myers
bfff8b1bec Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Joseph Myers
f7a9f785e5 Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Adhemerval Zanella
6f714aa4ad powerpc: Fix PPC64/POWER7 conform tests
When building with --disable-multi-arch the memmove and strstr POWER7
optimization create and uses symbols that conflict with expect conform
tests.

	* sysdeps/powerpc/powerpc64/power7/memmove.S (bcopy): Changing to
	__bcopy and add a weak_alias to bcopy.
	* sysdeps/powerpc/powerpc64/power7/strstr.S (strstr): Use __strnlen
	for static build.
2015-08-11 10:03:10 -03:00
Joseph Myers
b168057aaa Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
Adhemerval Zanella
17762f6625 PowerPC: optimized memmove for POWER7/PPC64
This patch adds an optimized memmove optimization for POWER7/powerpc64.
Basically the idea is to use the memcpy for POWER7 on non-overlapped
memory regions and a optimized backward memcpy for memory regions
that overlap (similar to the idea of string/memmove.c).

The backward memcpy algorithm used is similar the one use for memcpy for
POWER7, with adjustments done for alignment.  The difference is memory
is always aligned to 16 bytes before using VSX/altivec instructions.
2014-07-07 15:41:21 -05:00