glibc/sysdeps/x86_64/multiarch/Makefile

ifeq ($(subdir),csu)
aux += init-arch
tests += test-multiarch
gen-as-const-headers += ifunc-defines.sym
endif

ifeq ($(subdir),string)

sysdep_routines += strncat-c stpncpy-c strncpy-c strcmp-ssse3 \
		   strcmp-sse2-unaligned strncmp-ssse3 \
		   memcmp-sse4 memcpy-ssse3 \
		   memcpy-sse2-unaligned mempcpy-ssse3 \
		   memmove-ssse3 memcpy-ssse3-back mempcpy-ssse3-back \
		   memmove-ssse3-back strcasecmp_l-ssse3 \
		   strncase_l-ssse3 strcat-ssse3 strncat-ssse3\
		   strcpy-ssse3 strncpy-ssse3 stpcpy-ssse3 stpncpy-ssse3 \
		   strcpy-sse2-unaligned strncpy-sse2-unaligned \
		   stpcpy-sse2-unaligned stpncpy-sse2-unaligned \
		   strcat-sse2-unaligned strncat-sse2-unaligned \
		   strchr-sse2-no-bsf memcmp-ssse3 strstr-sse2-unaligned \
		   memset-avx2

ifeq (yes,$(config-cflags-sse4))
sysdep_routines += strcspn-c strpbrk-c strspn-c varshift
CFLAGS-varshift.c += -msse4
CFLAGS-strcspn-c.c += -msse4
CFLAGS-strpbrk-c.c += -msse4
CFLAGS-strspn-c.c += -msse4
endif
endif

ifeq ($(subdir),wcsmbs)
sysdep_routines += wmemcmp-sse4 wmemcmp-ssse3 wmemcmp-c wcscpy-ssse3 wcscpy-c
endif
* config.h.in (USE_MULTIARCH): Define. * configure.in: Handle --enable-multi-arch. * elf/dl-runtime.c (_dl_fixup): Handle STT_GNU_IFUNC. (_dl_fixup_profile): Likewise. * elf/do-lookup.c (dl_lookup_x): Likewise. * sysdeps/x86_64/dl-machine.h: Handle STT_GNU_IFUNC. * elf/elf.h (STT_GNU_IFUNC): Define. * include/libc-symbols.h (libc_ifunc): Define. * sysdeps/x86_64/cacheinfo.c: If USE_MULTIARCH is defined, use the framework in init-arch.h to get CPUID values. * sysdeps/x86_64/multiarch/Makefile: New file. * sysdeps/x86_64/multiarch/init-arch.c: New file. * sysdeps/x86_64/multiarch/init-arch.h: New file. * sysdeps/x86_64/multiarch/sched_cpucount.c: New file. * config.make.in (experimental-malloc): Define. * configure.in: Handle --enable-experimental-malloc. * malloc/Makefile: Handle experimental-malloc flag. * malloc/malloc.c: Implement PER_THREAD and ATOMIC_FASTBINS features. * malloc/arena.c: Likewise. * malloc/hooks.c: Likewise. * malloc/malloc.h: Define M_ARENA_TEST and M_ARENA_MAX. 2009-03-13 23:53:18 +00:00			`ifeq ($(subdir),csu)`
			`aux += init-arch`
BZ#14059: Fix AVX and FMA4 detection. Fix AVX and FMA4 detection by following the guidelines set out by Intel and AMD for detecting these features. 2012-05-16 20:14:24 -07:00			`tests += test-multiarch`
Optimize x86-64 strlen for SSE4.2. The SSE4.2 implementation is used in the DSO only. The patch also adds some infrastructure to be used in similar code later one. 2009-06-05 11:32:00 -07:00			`gen-as-const-headers += ifunc-defines.sym`
* config.h.in (USE_MULTIARCH): Define. * configure.in: Handle --enable-multi-arch. * elf/dl-runtime.c (_dl_fixup): Handle STT_GNU_IFUNC. (_dl_fixup_profile): Likewise. * elf/do-lookup.c (dl_lookup_x): Likewise. * sysdeps/x86_64/dl-machine.h: Handle STT_GNU_IFUNC. * elf/elf.h (STT_GNU_IFUNC): Define. * include/libc-symbols.h (libc_ifunc): Define. * sysdeps/x86_64/cacheinfo.c: If USE_MULTIARCH is defined, use the framework in init-arch.h to get CPUID values. * sysdeps/x86_64/multiarch/Makefile: New file. * sysdeps/x86_64/multiarch/init-arch.c: New file. * sysdeps/x86_64/multiarch/init-arch.h: New file. * sysdeps/x86_64/multiarch/sched_cpucount.c: New file. * config.make.in (experimental-malloc): Define. * configure.in: Handle --enable-experimental-malloc. * malloc/Makefile: Handle experimental-malloc flag. * malloc/malloc.c: Implement PER_THREAD and ATOMIC_FASTBINS features. * malloc/arena.c: Likewise. * malloc/hooks.c: Likewise. * malloc/malloc.h: Define M_ARENA_TEST and M_ARENA_MAX. 2009-03-13 23:53:18 +00:00			`endif`
Add SSE4.2 support for strcmp and strncmp on x86-64. 2009-06-22 20:38:41 -07:00
			`ifeq ($(subdir),string)`
Improved st{r,p}{,n}cpy for SSE2 and SSSE3 on x86-64 2011-06-24 15:14:22 -04:00
Add unaligned strcmp. 2013-09-03 16:21:38 +02:00			`sysdep_routines += strncat-c stpncpy-c strncpy-c strcmp-ssse3 \`
			`strcmp-sse2-unaligned strncmp-ssse3 \`
Faster strrchr. 2013-09-26 18:54:09 +02:00			`memcmp-sse4 memcpy-ssse3 \`
Add unaligned strcmp. 2013-09-03 16:21:38 +02:00			`memcpy-sse2-unaligned mempcpy-ssse3 \`
Improve 64bit memcpy/memmove for Atom, Core 2 and Core i7 This patch includes optimized 64bit memcpy/memmove for Atom, Core 2 and Core i7. It improves memcpy by up to 3X on Atom, up to 4X on Core 2 and up to 1X on Core i7. It also improves memmove by up to 3X on Atom, up to 4X on Core 2 and up to 2X on Core i7. 2010-06-30 08:26:11 -07:00			`memmove-ssse3 memcpy-ssse3-back mempcpy-ssse3-back \`
Add strstr with unaligned loads. Fixes bug 12100. A sse42 version of strstr used pcmpistr instruction which is quite ineffective. A faster way is look for pairs of characters which is uses sse2, is faster than pcmpistr and for real strings a pairs we look for are relatively rare. For linear time complexity we use buy or rent technique which switches to two-way algorithm when superlinear behaviour is detected. 2013-12-14 19:33:56 +01:00			`memmove-ssse3-back strcasecmp_l-ssse3 \`
Faster strlen on x64. 2013-03-18 07:39:12 +01:00			`strncase_l-ssse3 strcat-ssse3 strncat-ssse3\`
Improved st{r,p}{,n}cpy for SSE2 and SSSE3 on x86-64 2011-06-24 15:14:22 -04:00			`strcpy-ssse3 strncpy-ssse3 stpcpy-ssse3 stpncpy-ssse3 \`
			`strcpy-sse2-unaligned strncpy-sse2-unaligned \`
Improve 64 bit strcat functions with SSE2/SSSE3 2011-07-19 17:11:54 -04:00			`stpcpy-sse2-unaligned stpncpy-sse2-unaligned \`
			`strcat-sse2-unaligned strncat-sse2-unaligned \`
Add x86_64 memset optimized for AVX2 In this patch we take advantage of HSW memory bandwidth, manage to reduce miss branch prediction by avoiding using branch instructions and force destination to be aligned with avx & avx2 instruction. The CPU2006 403.gcc benchmark indicates this patch improves performance from 26% to 59%. * sysdeps/x86_64/multiarch/Makefile: Add memset-avx2. * sysdeps/x86_64/multiarch/memset-avx2.S: New file. * sysdeps/x86_64/multiarch/memset.S: Likewise. * sysdeps/x86_64/multiarch/memset_chk.S: Likewise. * sysdeps/x86_64/multiarch/rtld-memset.S: Likewise. 2014-06-19 13:00:56 -07:00			`strchr-sse2-no-bsf memcmp-ssse3 strstr-sse2-unaligned \`
			`memset-avx2`

Add SSE4.2 support for strcspn, strpbrk, and strspn on x86-64. 2009-07-03 02:48:56 -07:00			`ifeq (yes,$(config-cflags-sse4))`
Add strstr with unaligned loads. Fixes bug 12100. A sse42 version of strstr used pcmpistr instruction which is quite ineffective. A faster way is look for pairs of characters which is uses sse2, is faster than pcmpistr and for real strings a pairs we look for are relatively rare. For linear time complexity we use buy or rent technique which switches to two-way algorithm when superlinear behaviour is detected. 2013-12-14 19:33:56 +01:00			`sysdep_routines += strcspn-c strpbrk-c strspn-c varshift`
Clean up warnings in new x86_64/multiarch code. 2010-08-25 12:13:08 -07:00			`CFLAGS-varshift.c += -msse4`
Add SSE4.2 support for strcspn, strpbrk, and strspn on x86-64. 2009-07-03 02:48:56 -07:00			`CFLAGS-strcspn-c.c += -msse4`
			`CFLAGS-strpbrk-c.c += -msse4`
			`CFLAGS-strspn-c.c += -msse4`
			`endif`
Add SSE4.2 support for strcmp and strncmp on x86-64. 2009-06-22 20:38:41 -07:00			`endif`
Optimized wcschr and wcscpy for x86-64 and x86-32 2011-12-17 14:39:23 -05:00
			`ifeq ($(subdir),wcsmbs)`
			`sysdep_routines += wmemcmp-sse4 wmemcmp-ssse3 wmemcmp-c wcscpy-ssse3 wcscpy-c`
			`endif`