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| author | Andrew Senkevich <andrew.senkevich@intel.com> | 2015-06-09 14:25:49 +0300 |
|---|---|---|
| committer | Andrew Senkevich <andrew.senkevich@intel.com> | 2015-06-09 14:25:49 +0300 |
| commit | 2193311288b97cf11dfabf1be22eac89b4ff7366 (patch) | |
| tree | b01d1141b18f16fe4b55855b6982b7601e208b0e /NEWS | |
| parent | fc5771e43ccf905d3e134b1e3349a3657acaa2a9 (diff) | |
| download | glibc-2193311288b97cf11dfabf1be22eac89b4ff7366.zip glibc-2193311288b97cf11dfabf1be22eac89b4ff7366.tar.gz glibc-2193311288b97cf11dfabf1be22eac89b4ff7366.tar.bz2 | |
Start of series of patches with x86_64 vector math functions.
Here is implementation of cos containing SSE, AVX, AVX2 and AVX512
versions according to Vector ABI which had been discussed in
<https://groups.google.com/forum/#!topic/x86-64-abi/LmppCfN1rZ4>.
Vector math library build and ABI testing enabled by default for x86_64.
* sysdeps/x86_64/fpu/Makefile: New file.
* sysdeps/x86_64/fpu/Versions: New file.
* sysdeps/x86_64/fpu/svml_d_cos_data.S: New file.
* sysdeps/x86_64/fpu/svml_d_cos_data.h: New file.
* sysdeps/x86_64/fpu/svml_d_cos2_core.S: New file.
* sysdeps/x86_64/fpu/svml_d_cos4_core.S: New file.
* sysdeps/x86_64/fpu/svml_d_cos4_core_avx.S: New file.
* sysdeps/x86_64/fpu/svml_d_cos8_core.S: New file.
* sysdeps/x86_64/fpu/svml_d_wrapper_impl.h: New file.
* sysdeps/x86_64/fpu/multiarch/svml_d_cos2_core.S: New file.
* sysdeps/x86_64/fpu/multiarch/svml_d_cos2_core_sse4.S: New file.
* sysdeps/x86_64/fpu/multiarch/svml_d_cos4_core.S: New file.
* sysdeps/x86_64/fpu/multiarch/svml_d_cos4_core_avx2.S: New file.
* sysdeps/x86_64/fpu/multiarch/svml_d_cos8_core.S: New file.
* sysdeps/x86_64/fpu/multiarch/svml_d_cos8_core_avx512.S: New file.
* sysdeps/x86_64/fpu/multiarch/Makefile (libmvec-sysdep_routines): Added
build of SSE, AVX2 and AVX512 IFUNC versions.
* sysdeps/x86/fpu/bits/math-vector.h: Added SIMD declaration for cos.
* math/bits/mathcalls.h: Added cos declaration with __MATHCALL_VEC.
* sysdeps/x86_64/configure.ac: Options for libmvec build.
* sysdeps/x86_64/configure: Regenerated.
* sysdeps/x86_64/sysdep.h (cfi_offset_rel_rsp): New macro.
* sysdeps/unix/sysv/linux/x86_64/libmvec.abilist: New file.
* manual/install.texi (Configuring and compiling): Document
--disable-mathvec.
* INSTALL: Regenerated.
* NEWS: Mention addition of libmvec and x86_64 vector cos.
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 8 |
1 files changed, 8 insertions, 0 deletions
@@ -50,6 +50,14 @@ Version 2.22 * CVE-2014-8121 The NSS backends shared internal state between the getXXent and getXXbyYY NSS calls for the same database, causing a denial-of-service condition in some applications. + +* Added vector math library named libmvec with the following vectorized x86_64 + implementations: cos. + The library can be disabled with --disable-mathvec. Use of the functions is + enabled with -fopenmp -ffast-math starting from -O1 for GCC version >= 4.9.0. + The library is linked in as needed when using -lm (no need to specify -lmvec + explicitly). + Visit <https://sourceware.org/glibc/wiki/libmvec> for detailed information. Version 2.21 |