| commit | 15c1fd09ecbee94d61ee624da44444b9b933e6fc | [log] [tgz] |
|---|---|---|
| author | Guillaume Chatelet <gchatelet@google.com> | Fri Jan 15 09:26:45 2021 +0000 |
| committer | Copybara-Service <copybara-worker@google.com> | Tue Jan 19 15:51:01 2021 -0800 |
| tree | 2de426c65defb59f2231693177c0456226b33a69 | |
| parent | fb3ec3d0d29f919e9334e0d4bddfddffb6c64986 [diff] |
[libc] Allow customization of memcpy via flags. - Adds LLVM_LIBC_IS_DEFINED macro to libc/src/__support/common.h - Adds a few knobs to memcpy to help with experimentations: - LLVM_LIBC_MEMCPY_X86_USE_ONLY_REPMOVSB replaces the implementation with a single call to rep;movsb - LLVM_LIBC_MEMCPY_X86_USE_REPMOVSB_FROM_SIZE customizes where the usage of rep;movsb Differential Revision: https://reviews.llvm.org/D94692 GitOrigin-RevId: a10300a2b27c426556f9266364337d5d546a3c14