1 /* 2 * Copyright 2012, The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "bcc/Support/TargetCompilerConfigs.h" 18 19 using namespace bcc; 20 21 //===----------------------------------------------------------------------===// 22 // ARM 23 //===----------------------------------------------------------------------===// 24 #if defined(PROVIDE_ARM_CODEGEN) 25 26 void ARMCompilerConfig::GetFeatureVector(std::vector<std::string> &pAttributes, 27 bool pEnableNEON) { 28 #if defined(ARCH_ARM_HAVE_VFP) 29 pAttributes.push_back("+vfp3"); 30 # if !defined(ARCH_ARM_HAVE_VFP_D32) 31 pAttributes.push_back("+d16"); 32 # endif 33 #endif 34 35 #if defined(ARCH_ARM_HAVE_NEON) && !defined(DISABLE_ARCH_ARM_HAVE_NEON) 36 if (pEnableNEON) { 37 pAttributes.push_back("+neon"); 38 pAttributes.push_back("+neonfp"); 39 } else { 40 pAttributes.push_back("-neon"); 41 pAttributes.push_back("-neonfp"); 42 } 43 #else 44 pAttributes.push_back("-neon"); 45 pAttributes.push_back("-neonfp"); 46 #endif 47 48 return; 49 } 50 51 ARMCompilerConfig::ARMCompilerConfig() 52 : CompilerConfig(DEFAULT_ARM_TRIPLE_STRING) { 53 54 // Enable NEON by default. 55 mEnableNEON = true; 56 57 std::vector<std::string> attributes; 58 GetFeatureVector(attributes, /* pEnableNEON */mEnableNEON); 59 setFeatureString(attributes); 60 61 return; 62 } 63 64 bool ARMCompilerConfig::enableNEON(bool pEnable) { 65 #if defined(ARCH_ARM_HAVE_NEON) && !defined(DISABLE_ARCH_ARM_HAVE_NEON) 66 if (mEnableNEON != pEnable) { 67 std::vector<std::string> attributes; 68 GetFeatureVector(attributes, pEnable); 69 setFeatureString(attributes); 70 mEnableNEON = pEnable; 71 return true; 72 } 73 // Fall-through 74 #endif 75 return false; 76 } 77 #endif // defined(PROVIDE_ARM_CODEGEN) 78
