1 // Copyright 2016 The SwiftShader Authors. All Rights Reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef sw_CPUID_hpp 16 #define sw_CPUID_hpp 17 18 namespace sw { 19 20 #if !defined(__i386__) && defined(_M_IX86) 21 # define __i386__ 1 22 #endif 23 24 #if !defined(__x86_64__) && (defined(_M_AMD64) || defined(_M_X64)) 25 # define __x86_64__ 1 26 #endif 27 28 class CPUID 29 { 30 public: 31 static bool supportsMMX(); 32 static bool supportsCMOV(); 33 static bool supportsMMX2(); // MMX instructions added by SSE: pshufw, pmulhuw, pmovmskb, pavgw/b, pextrw, pinsrw, pmaxsw/ub, etc. 34 static bool supportsSSE(); 35 static bool supportsSSE2(); 36 static bool supportsSSE3(); 37 static bool supportsSSSE3(); 38 static bool supportsSSE4_1(); 39 static int coreCount(); 40 static int processAffinity(); 41 42 static void setFlushToZero(bool enable); // Denormal results are written as zero 43 static void setDenormalsAreZero(bool enable); // Denormal inputs are read as zero 44 }; 45 46 } // namespace sw 47 48 #endif // sw_CPUID_hpp 49