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|---|---|---|---|
| 1 | // Copyright Contributors to the OpenVDB Project | ||
| 2 | // SPDX-License-Identifier: MPL-2.0 | ||
| 3 | |||
| 4 | #ifndef OPENVDB_AX_UNITTEST_BACKEND_UTIL_HAS_BEEN_INCLUDED | ||
| 5 | #define OPENVDB_AX_UNITTEST_BACKEND_UTIL_HAS_BEEN_INCLUDED | ||
| 6 | |||
| 7 | #include <openvdb_ax/codegen/Types.h> | ||
| 8 | |||
| 9 | #include <llvm/IR/LLVMContext.h> | ||
| 10 | #include <llvm/IR/Module.h> | ||
| 11 | #include <llvm/IR/IRBuilder.h> | ||
| 12 | #include <llvm/ExecutionEngine/ExecutionEngine.h> | ||
| 13 | #include <llvm/Support/Host.h> | ||
| 14 | |||
| 15 | #include <memory> | ||
| 16 | #include <string> | ||
| 17 | |||
| 18 | namespace unittest_util | ||
| 19 | { | ||
| 20 | |||
| 21 |
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310 | struct LLVMState |
| 22 | { | ||
| 23 | 310 | LLVMState(const std::string& name = "__test_module") | |
| 24 |
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310 | : mCtx(new llvm::LLVMContext), mModule(new llvm::Module(name, *mCtx)) {} |
| 25 | |||
| 26 | llvm::LLVMContext& context() { return *mCtx; } | ||
| 27 | llvm::Module& module() { return *mModule; } | ||
| 28 | |||
| 29 | inline llvm::BasicBlock* | ||
| 30 | 9 | scratchBlock(const std::string& functionName = "TestFunction", | |
| 31 | const std::string& blockName = "TestEntry") | ||
| 32 | { | ||
| 33 | llvm::FunctionType* type = | ||
| 34 | 9 | llvm::FunctionType::get(openvdb::ax::codegen::LLVMType<void>::get(this->context()), | |
| 35 | /**var-args*/false); | ||
| 36 | llvm::Function* dummyFunction = | ||
| 37 | 9 | llvm::Function::Create(type, llvm::Function::ExternalLinkage, functionName, &this->module()); | |
| 38 | 9 | return llvm::BasicBlock::Create(this->context(), blockName, dummyFunction); | |
| 39 | } | ||
| 40 | |||
| 41 | 9 | inline std::unique_ptr<llvm::ExecutionEngine> EE() | |
| 42 | { | ||
| 43 |
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9 | mModule->setTargetTriple(llvm::sys::getDefaultTargetTriple()); |
| 44 | 9 | llvm::StringMap<bool> HostFeatures; | |
| 45 |
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9 | llvm::sys::getHostCPUFeatures(HostFeatures); |
| 46 | std::vector<llvm::StringRef> features; | ||
| 47 |
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684 | for (auto& feature : HostFeatures) { |
| 48 |
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675 | if (feature.second) features.emplace_back(feature.first()); |
| 49 | } | ||
| 50 | |||
| 51 |
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18 | auto M = std::move(mModule); |
| 52 |
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9 | mModule.reset(new llvm::Module(M->getName(), *mCtx)); |
| 53 | std::unique_ptr<llvm::ExecutionEngine> | ||
| 54 |
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18 | EE(llvm::EngineBuilder(std::move(M)) |
| 55 | .setEngineKind(llvm::EngineKind::JIT) | ||
| 56 | .setOptLevel(llvm::CodeGenOpt::Level::Default) | ||
| 57 |
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9 | .setMCPU(llvm::sys::getHostCPUName()) |
| 58 |
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9 | .setMAttrs(features) |
| 59 | .create()); | ||
| 60 | |||
| 61 |
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9 | assert(EE.get()); |
| 62 | 9 | return EE; | |
| 63 | } | ||
| 64 | |||
| 65 | private: | ||
| 66 | std::unique_ptr<llvm::LLVMContext> mCtx; | ||
| 67 | std::unique_ptr<llvm::Module> mModule; | ||
| 68 | }; | ||
| 69 | |||
| 70 | } | ||
| 71 | |||
| 72 | #endif // OPENVDB_AX_UNITTEST_BACKEND_UTIL_HAS_BEEN_INCLUDED | ||
| 73 | |||
| 74 |