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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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