1ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang/* 2ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang * Copyright 2012, The Android Open Source Project 3ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang * 4ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang * Licensed under the Apache License, Version 2.0 (the "License"); 5ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang * you may not use this file except in compliance with the License. 6ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang * You may obtain a copy of the License at 7ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang * 8ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang * http://www.apache.org/licenses/LICENSE-2.0 9ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang * 10ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang * Unless required by applicable law or agreed to in writing, software 11ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang * distributed under the License is distributed on an "AS IS" BASIS, 12ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang * See the License for the specific language governing permissions and 14ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang * limitations under the License. 15ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang */ 16ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang 17e198abec6c5e3eab380ccf6897b0a0b9c2dd92ddStephen Hines#include "bcc/Renderscript/RSCompiler.h" 18ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang 19b730e239619a546d93e5926ea92d698ab77ec7f6Stephen Hines#include <llvm/IR/Module.h> 20ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang#include <llvm/PassManager.h> 21ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang#include <llvm/Transforms/IPO.h> 22ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang 23e198abec6c5e3eab380ccf6897b0a0b9c2dd92ddStephen Hines#include "bcc/Renderscript/RSExecutable.h" 24e198abec6c5e3eab380ccf6897b0a0b9c2dd92ddStephen Hines#include "bcc/Renderscript/RSInfo.h" 25e198abec6c5e3eab380ccf6897b0a0b9c2dd92ddStephen Hines#include "bcc/Renderscript/RSScript.h" 26e198abec6c5e3eab380ccf6897b0a0b9c2dd92ddStephen Hines#include "bcc/Renderscript/RSTransforms.h" 27c72c4ddfcd79c74f70713da91a69569451b5c19eZonr Chang#include "bcc/Source.h" 28ef73a242762bcd8113b9b65ceccbe7d909b5acbcZonr Chang#include "bcc/Support/Log.h" 29ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang 30ade92778b99382413ff9c556c724dd3f447e5dfbZonr Changusing namespace bcc; 31ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang 32ade92778b99382413ff9c556c724dd3f447e5dfbZonr Changbool RSCompiler::beforeAddLTOPasses(Script &pScript, llvm::PassManager &pPM) { 33ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang // Add a pass to internalize the symbols that don't need to have global 34ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang // visibility. 35ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang RSScript &script = static_cast<RSScript &>(pScript); 36ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang const RSInfo *info = script.getInfo(); 37ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang 38ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang // The vector contains the symbols that should not be internalized. 39ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang std::vector<const char *> export_symbols; 40ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang 41ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang // Special RS functions should always be global symbols. 42ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang const char **special_functions = RSExecutable::SpecialFunctionNames; 43ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang while (*special_functions != NULL) { 44ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang export_symbols.push_back(*special_functions); 45ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang special_functions++; 46ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang } 47ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang 48ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang // Visibility of symbols appeared in rs_export_var and rs_export_func should 49ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang // also be preserved. 50ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang const RSInfo::ExportVarNameListTy &export_vars = info->getExportVarNames(); 51ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang const RSInfo::ExportFuncNameListTy &export_funcs = info->getExportFuncNames(); 52ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang 53ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang for (RSInfo::ExportVarNameListTy::const_iterator 54ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang export_var_iter = export_vars.begin(), 55ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang export_var_end = export_vars.end(); 56ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang export_var_iter != export_var_end; export_var_iter++) { 57ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang export_symbols.push_back(*export_var_iter); 58ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang } 59ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang 60ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang for (RSInfo::ExportFuncNameListTy::const_iterator 61ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang export_func_iter = export_funcs.begin(), 62ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang export_func_end = export_funcs.end(); 63ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang export_func_iter != export_func_end; export_func_iter++) { 64ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang export_symbols.push_back(*export_func_iter); 65ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang } 66ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang 67ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang // Expanded foreach functions should not be internalized, too. 68ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang const RSInfo::ExportForeachFuncListTy &export_foreach_func = 69ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang info->getExportForeachFuncs(); 70ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang std::vector<std::string> expanded_foreach_funcs; 71ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang for (RSInfo::ExportForeachFuncListTy::const_iterator 72ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang foreach_func_iter = export_foreach_func.begin(), 73ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang foreach_func_end = export_foreach_func.end(); 74ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang foreach_func_iter != foreach_func_end; foreach_func_iter++) { 75ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang std::string name(foreach_func_iter->first); 76ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang expanded_foreach_funcs.push_back(name.append(".expand")); 77c104ec91f241413c38763cba70c8ed02ee82f5a9Stephen Hines } 78c104ec91f241413c38763cba70c8ed02ee82f5a9Stephen Hines 79c104ec91f241413c38763cba70c8ed02ee82f5a9Stephen Hines // Need to wait until ForEachExpandList is fully populated to fill in 80c104ec91f241413c38763cba70c8ed02ee82f5a9Stephen Hines // exported symbols. 81c104ec91f241413c38763cba70c8ed02ee82f5a9Stephen Hines for (size_t i = 0; i < expanded_foreach_funcs.size(); i++) { 82c104ec91f241413c38763cba70c8ed02ee82f5a9Stephen Hines export_symbols.push_back(expanded_foreach_funcs[i].c_str()); 83ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang } 84ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang 85ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang pPM.add(llvm::createInternalizePass(export_symbols)); 86ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang 87ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang return true; 88ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang} 89ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang 90ade92778b99382413ff9c556c724dd3f447e5dfbZonr Changbool RSCompiler::beforeExecuteLTOPasses(Script &pScript, 91ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang llvm::PassManager &pPM) { 92ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang // Execute a pass to expand foreach-able functions 93ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang llvm::PassManager rs_passes; 94ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang 95ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang // Script passed to RSCompiler must be a RSScript. 96ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang RSScript &script = static_cast<RSScript &>(pScript); 97ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang const RSInfo *info = script.getInfo(); 98ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang llvm::Module &module = script.getSource().getModule(); 99ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang 100ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang if (info == NULL) { 101ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang ALOGE("Missing RSInfo in RSScript to run the pass for foreach expansion on " 102ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang "%s!", module.getModuleIdentifier().c_str()); 103ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang return false; 104ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang } 105ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang 106ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang // Expand ForEach on CPU path to reduce launch overhead. 1072b04086acbef6520ae2c54a868b1271abf053122Stephen Hines rs_passes.add(createRSForEachExpandPass(info->getExportForeachFuncs(), 1082b04086acbef6520ae2c54a868b1271abf053122Stephen Hines /* pEnableStepOpt */ true)); 10986a0b797c221d4c3373dc10c8229b75b6747f6e7Stephen Hines if (script.getEmbedInfo()) { 11086a0b797c221d4c3373dc10c8229b75b6747f6e7Stephen Hines rs_passes.add(createRSEmbedInfoPass(info)); 11186a0b797c221d4c3373dc10c8229b75b6747f6e7Stephen Hines } 112ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang 113ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang // Execute the pass. 114ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang rs_passes.run(module); 115ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang 116ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang return true; 117ade92778b99382413ff9c556c724dd3f447e5dfbZonr Chang} 118