mirror of git://gcc.gnu.org/git/gcc.git
cc33531df0
This patch modifies the implementation of the vectorized mersenne twister random number generator to use __builtin_shufflevector instead of __builtin_shuffle. This makes it (almost) compatible with Clang. To make the implementation fully compatible with Clang, Clang will need to support internal Neon types like __Uint8x16_t and __Uint32x4_t, which currently it does not. This looks like an oversight in Clang and so will be addressed separately. I see no codegen change with this patch. Bootstrapped and tested on aarch64-none-linux-gnu. libstdc++-v3/ChangeLog: * config/cpu/aarch64/opt/ext/opt_random.h (__VEXT): Replace uses of __builtin_shuffle with __builtin_shufflevector. (__aarch64_lsl_128): Move shift amount to a template parameter. (__aarch64_lsr_128): Move shift amount to a template parameter. (__aarch64_recursion): Update call sites of __aarch64_lsl_128 and __aarch64_lsr_128. Signed-off-by: Ricardo Jesus <rjj@nvidia.com> |
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README
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the files whose names start with COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs/ for how to report bugs usefully. Copyright years on GCC source files may be listed using range notation, e.g., 1987-2012, indicating that every year in the range, inclusive, is a copyrightable year that could otherwise be listed individually.