| /* Copyright (c) 2014, Cisco Systems, INC |
| Written by XiangMingZhu WeiZhou MinPeng YanWang |
| |
| Redistribution and use in source and binary forms, with or without |
| modification, are permitted provided that the following conditions |
| are met: |
| |
| - Redistributions of source code must retain the above copyright |
| notice, this list of conditions and the following disclaimer. |
| |
| - Redistributions in binary form must reproduce the above copyright |
| notice, this list of conditions and the following disclaimer in the |
| documentation and/or other materials provided with the distribution. |
| |
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER |
| OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #if !defined(X86CPU_H) |
| # define X86CPU_H |
| |
| # if defined(OPUS_X86_MAY_HAVE_SSE2) |
| # define MAY_HAVE_SSE2(name) name ## _sse2 |
| # else |
| # define MAY_HAVE_SSE2(name) name ## _c |
| # endif |
| |
| # if defined(OPUS_X86_MAY_HAVE_SSE4_1) |
| # define MAY_HAVE_SSE4_1(name) name ## _sse4_1 |
| # else |
| # define MAY_HAVE_SSE4_1(name) name ## _c |
| # endif |
| |
| # if defined(OPUS_HAVE_RTCD) |
| int opus_select_arch(void); |
| # endif |
| |
| /*gcc appears to emit MOVDQA's to load the argument of an _mm_cvtepi16_epi32() |
| when optimizations are disabled, even though the actual PMOVSXWD instruction |
| takes an m64. Unlike a normal m64 reference, these require 16-byte alignment |
| and load 16 bytes instead of 8, possibly reading out of bounds. |
| |
| We can insert an explicit MOVQ using _mm_loadl_epi64(), which should have the |
| same semantics as an m64 reference in the PMOVSXWD instruction itself, but |
| gcc is not smart enough to optimize this out when optimizations ARE enabled.*/ |
| # if !defined(__OPTIMIZE__) |
| # define OP_CVTEPI16_EPI32_M64(x) \ |
| (_mm_cvtepi16_epi32(_mm_loadl_epi64((__m128i *)(x)))) |
| # else |
| # define OP_CVTEPI16_EPI32_M64(x) \ |
| (_mm_cvtepi16_epi32(*(__m128i *)(x))) |
| # endif |
| |
| #endif |