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[/] [openrisc/] [tags/] [gnu-dev/] [fsf-gcc-snapshot-1-mar-12/] [or1k-gcc/] [libitm/] [config/] [x86/] [x86_avx.cc] - Rev 783
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/* Copyright (C) 2009, 2011 Free Software Foundation, Inc. Contributed by Richard Henderson <rth@redhat.com>. This file is part of the GNU Transactional Memory Library (libitm). Libitm is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. Libitm is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. Under Section 7 of GPL version 3, you are granted additional permissions described in the GCC Runtime Library Exception, version 3.1, as published by the Free Software Foundation. You should have received a copy of the GNU General Public License and a copy of the GCC Runtime Library Exception along with this program; see the files COPYING3 and COPYING.RUNTIME respectively. If not, see <http://www.gnu.org/licenses/>. */ #include "config.h" #include "libitm_i.h" #include "dispatch.h" extern "C" { #ifndef HAVE_AS_AVX // If we don't have an AVX capable assembler, we didn't set -mavx on the // command-line either, which means that libitm.h defined neither this type // nor the functions in this file. Define the type and unconditionally // wrap the file in extern "C" to make up for the lack of pre-declaration. typedef float _ITM_TYPE_M256 __attribute__((vector_size(32), may_alias)); #endif // Re-define the memcpy implementations so that we can frob the // interface to deal with possibly missing AVX instruction set support. #ifdef HAVE_AS_AVX #define RETURN(X) return X #define STORE(X,Y) X = Y #define OUTPUT(T) _ITM_TYPE_##T #define INPUT(T,X) , _ITM_TYPE_##T X #else /* Emit vmovaps (%rax),%ymm0. */ #define RETURN(X) \ asm volatile(".byte 0xc5,0xfc,0x28,0x00" : "=m"(X) : "a"(&X)) /* Emit vmovaps %ymm0,(%rax); vzeroupper. */ #define STORE(X,Y) \ asm volatile(".byte 0xc5,0xfc,0x29,0x00,0xc5,0xf8,0x77" : "=m"(X) : "a"(&X)) #define OUTPUT(T) void #define INPUT(T,X) #endif #undef ITM_READ_MEMCPY #define ITM_READ_MEMCPY(T, LSMOD, TARGET, M2) \ OUTPUT(T) ITM_REGPARM _ITM_##LSMOD##T (const _ITM_TYPE_##T *ptr) \ { \ _ITM_TYPE_##T v; \ TARGET memtransfer##M2(&v, ptr, sizeof(_ITM_TYPE_##T), false, \ GTM::abi_dispatch::NONTXNAL, \ GTM::abi_dispatch::LSMOD); \ RETURN(v); \ } #undef ITM_WRITE_MEMCPY #define ITM_WRITE_MEMCPY(T, LSMOD, TARGET, M2) \ void ITM_REGPARM _ITM_##LSMOD##T (_ITM_TYPE_##T *ptr INPUT(T,in)) \ { \ _ITM_TYPE_##T v; \ STORE(v, in); \ TARGET memtransfer##M2(ptr, &v, sizeof(_ITM_TYPE_##T), false, \ GTM::abi_dispatch::LSMOD, \ GTM::abi_dispatch::NONTXNAL); \ } // ??? Use memcpy for now, until we have figured out how to best instantiate // these loads/stores. CREATE_DISPATCH_FUNCTIONS_T_MEMCPY(M256, GTM::abi_disp()->, ) void ITM_REGPARM _ITM_LM256 (const _ITM_TYPE_M256 *ptr) { GTM::GTM_LB (ptr, sizeof (*ptr)); } } // extern "C"