mirror of git://sourceware.org/git/glibc.git
e6a1c5dc77
Support added to identify Sparc M7/T7/S7/M8/T8 processor capability. Performance tests run on Sparc S7 using new code and old niagara4 code. Optimizations for memset also apply to bzero as they share code. For memset/bzero, performance comparison with niagara4 code: For memset nonzero data, 256-1023 bytes - 60-90% gain (in cache); 5% gain (out of cache) 1K+ bytes - 80-260% gain (in cache); 40-80% gain (out of cache) For memset zero data (and bzero), 256-1023 bytes - 80-120% gain (in cache), 0% gain (out of cache) 1024+ bytes - 2-4x gain (in cache), 10-35% gain (out of cache) Tested in sparcv9-*-* and sparc64-*-* targets in both multi and non-multi arch configurations. Patrick McGehearty <patrick.mcgehearty@oracle.com> Adhemerval Zanella <adhemerval.zanella@linaro.org> * sysdeps/sparc/sparc32/sparcv9/multiarch/Makefile (sysdeps_routines): Add memset-niagara7. * sysdeps/sparc/sparc64/multiarch/Makefile (sysdes_rotuines): Likewise. * sysdeps/sparc/sparc32/sparcv9/multiarch/memset-niagara7.S: New file. * sysdeps/sparc/sparc64/multiarch/memset-niagara7.S: Likewise. * sysdeps/sparc/sparc64/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Add __bzero_niagara7 and __memset_niagara7. * sysdeps/sparc/sparc64/multiarch/ifunc-memset.h (IFUNC_SELECTOR): Add niagara7 option. * NEWS: Mention sparc m7 optimized memcpy, mempcpy, memmove, and memset. |
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| .. | ||
| Makefile | ||
| add_n-generic.S | ||
| add_n-vis3.S | ||
| add_n.c | ||
| addmul_1-generic.S | ||
| addmul_1-vis3.S | ||
| addmul_1.c | ||
| bzero.c | ||
| ifunc-impl-list.c | ||
| ifunc-memcpy.h | ||
| ifunc-memmove.h | ||
| ifunc-memset.h | ||
| md5-block.c | ||
| md5-crop.S | ||
| memcpy-memmove-niagara7.S | ||
| memcpy-niagara1.S | ||
| memcpy-niagara2.S | ||
| memcpy-niagara4.S | ||
| memcpy-ultra1.S | ||
| memcpy-ultra3.S | ||
| memcpy.c | ||
| memmove-ultra1.S | ||
| memmove.c | ||
| mempcpy.c | ||
| memset-niagara1.S | ||
| memset-niagara4.S | ||
| memset-niagara7.S | ||
| memset-ultra1.S | ||
| memset.c | ||
| mul_1-generic.S | ||
| mul_1-vis3.S | ||
| mul_1.c | ||
| rtld-memcpy.c | ||
| rtld-memmove.c | ||
| rtld-memset.c | ||
| sha256-block.c | ||
| sha256-crop.S | ||
| sha512-block.c | ||
| sha512-crop.S | ||
| sub_n-generic.S | ||
| sub_n-vis3.S | ||
| sub_n.c | ||
| submul_1-generic.S | ||
| submul_1-vis3.S | ||
| submul_1.c | ||