| /* |
| * Copyright 2015, The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "Log.h" |
| #include "RSTransforms.h" |
| |
| #include <cstdlib> |
| |
| #include <llvm/IR/Instructions.h> |
| #include <llvm/IR/Metadata.h> |
| #include <llvm/IR/Module.h> |
| #include <llvm/IR/Function.h> |
| #include <llvm/Pass.h> |
| |
| namespace { // anonymous namespace |
| |
| // Create a Module pass that screens all the global functions in the module and |
| // check if any non-threadable function is callable. If so, we mark the |
| // Module as non-threadable by adding a metadata flag '#rs_is_threadable' |
| |
| class RSIsThreadablePass : public llvm::ModulePass { |
| private: |
| static char ID; |
| |
| std::vector<std::string> nonThreadableFns = { |
| "_Z22rsgBindProgramFragment19rs_program_fragment", |
| "_Z19rsgBindProgramStore16rs_program_store", |
| "_Z20rsgBindProgramVertex17rs_program_vertex", |
| "_Z20rsgBindProgramRaster17rs_program_raster", |
| "_Z14rsgBindSampler19rs_program_fragmentj10rs_sampler", |
| "_Z14rsgBindTexture19rs_program_fragmentj13rs_allocation", |
| "_Z15rsgBindConstant19rs_program_fragmentj13rs_allocation", |
| "_Z15rsgBindConstant17rs_program_vertexj13rs_allocation", |
| "_Z36rsgProgramVertexLoadProjectionMatrixPK12rs_matrix4x4", |
| "_Z31rsgProgramVertexLoadModelMatrixPK12rs_matrix4x4", |
| "_Z33rsgProgramVertexLoadTextureMatrixPK12rs_matrix4x4", |
| "_Z35rsgProgramVertexGetProjectionMatrixP12rs_matrix4x4", |
| "_Z31rsgProgramFragmentConstantColor19rs_program_fragmentffff", |
| "_Z11rsgGetWidthv", |
| "_Z12rsgGetHeightv", |
| "_Z11rsgDrawRectfffff", |
| "_Z11rsgDrawQuadffffffffffff", |
| "_Z20rsgDrawQuadTexCoordsffffffffffffffffffff", |
| "_Z24rsgDrawSpriteScreenspacefffff", |
| "_Z11rsgDrawMesh7rs_mesh", |
| "_Z11rsgDrawMesh7rs_meshj", |
| "_Z11rsgDrawMesh7rs_meshjjj", |
| "_Z25rsgMeshComputeBoundingBox7rs_meshPfS0_S0_S0_S0_S0_", |
| "_Z11rsgDrawPath7rs_path", |
| "_Z13rsgClearColorffff", |
| "_Z13rsgClearDepthf", |
| "_Z11rsgDrawTextPKcii", |
| "_Z11rsgDrawText13rs_allocationii", |
| "_Z14rsgMeasureTextPKcPiS1_S1_S1_", |
| "_Z14rsgMeasureText13rs_allocationPiS0_S0_S0_", |
| "_Z11rsgBindFont7rs_font", |
| "_Z12rsgFontColorffff", |
| "_Z18rsgBindColorTarget13rs_allocationj", |
| "_Z18rsgBindDepthTarget13rs_allocation", |
| "_Z19rsgClearColorTargetj", |
| "_Z19rsgClearDepthTargetv", |
| "_Z24rsgClearAllRenderTargetsv", |
| "_Z7rsGetDtv", |
| "_Z5colorffff", |
| "_Z9rsgFinishv", |
| }; |
| |
| bool isPresent(std::vector<std::string> &list, const std::string &name) { |
| auto lower = std::lower_bound(list.begin(), |
| list.end(), |
| name); |
| |
| if (lower != list.end() && name.compare(*lower) == 0) |
| return true; |
| return false; |
| } |
| |
| public: |
| RSIsThreadablePass() |
| : ModulePass (ID) { |
| std::sort(nonThreadableFns.begin(), nonThreadableFns.end()); |
| } |
| |
| virtual void getAnalysisUsage(llvm::AnalysisUsage &AU) const override { |
| AU.setPreservesAll(); |
| } |
| |
| bool runOnModule(llvm::Module &M) override { |
| bool threadable = true; |
| |
| auto &FunctionList(M.getFunctionList()); |
| for (auto &F: FunctionList) { |
| if (isPresent(nonThreadableFns, F.getName().str())) { |
| threadable = false; |
| break; |
| } |
| } |
| |
| llvm::LLVMContext &context = M.getContext(); |
| llvm::MDString *val = |
| llvm::MDString::get(context, (threadable) ? "yes" : "no"); |
| llvm::NamedMDNode *node = |
| M.getOrInsertNamedMetadata("#rs_is_threadable"); |
| node->addOperand(llvm::MDNode::get(context, val)); |
| |
| return false; |
| } |
| |
| }; |
| |
| } |
| |
| char RSIsThreadablePass::ID = 0; |
| |
| namespace bcc { |
| |
| llvm::ModulePass * |
| createRSIsThreadablePass () { |
| return new RSIsThreadablePass(); |
| } |
| |
| } |