| /* |
| * Copyright 2012, 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. |
| */ |
| |
| #ifndef BCC_COMPILER_OPTION_H |
| #define BCC_COMPILER_OPTION_H |
| |
| #include "Config.h" |
| #include "Compiler.h" |
| |
| #include "llvm/Target/TargetOptions.h" |
| #include "llvm/Support/CodeGen.h" |
| |
| namespace bcc { |
| |
| class CompilerOption { |
| public: |
| // Constructor setup "default configuration". The "default configuration" |
| // here means the configuration for running RenderScript (more specifically, |
| // one can declare a CompilerOption object (call default constructor) and then |
| // pass to the Compiler::compiler() without any modification for RenderScript, |
| // see Script::prepareExecutable(...)). |
| // |
| // Must be invoked after calling Compiler::GlobalInitialization() at least once. |
| // |
| CompilerOption() { |
| //-- Setup options to llvm::TargetMachine --// |
| |
| //-- Setup Frame Pointer Elimination Optimization --// |
| #if defined(__HOST__) |
| // Disable frame pointer elimination optimization for X86_64 and X86 |
| if ((Compiler::getTargetArchType() == llvm::Triple::x86_64) || |
| (Compiler::getTargetArchType() == llvm::Triple::x86)) { |
| TargetOpt.NoFramePointerElim = true; |
| } else { |
| TargetOpt.NoFramePointerElim = false; |
| } |
| #elif defined(DEFAULT_X86_64_CODEGEN) |
| TargetOpt.NoFramePointerElim = true; |
| #elif defined(DEFAULT_X86_CODEGEN) |
| TargetOpt.NoFramePointerElim = true; |
| #else |
| TargetOpt.NoFramePointerElim = false; |
| #endif |
| |
| // Use hardfloat ABI |
| // |
| // TODO(all): Need to detect the CPU capability and decide whether to use |
| // softfp. To use softfp, change following 2 lines to |
| // |
| // options.FloatABIType = llvm::FloatABI::Soft; |
| // options.UseSoftFloat = true; |
| TargetOpt.FloatABIType = llvm::FloatABI::Soft; |
| TargetOpt.UseSoftFloat = false; |
| |
| //-- Setup relocation model --// |
| RelocModelOpt = llvm::Reloc::Static; |
| |
| //-- Setup code model --// |
| #if defined(__HOST__) |
| // Data address in X86_64 architecture may reside in a far-away place |
| if (Compiler::getTargetArchType() == llvm::Triple::x86_64) { |
| CodeModelOpt = llvm::CodeModel::Medium; |
| } else { |
| CodeModelOpt = llvm::CodeModel::Small; |
| } |
| #elif defined(DEFAULT_X86_64_CODEGEN) |
| CodeModelOpt = llvm::CodeModel::Medium; |
| #else |
| CodeModelOpt = llvm::CodeModel::Small; |
| #endif |
| |
| //-- Load the result object after successful compilation --// |
| LoadAfterCompile = true; |
| } |
| |
| llvm::TargetOptions TargetOpt; |
| llvm::CodeModel::Model CodeModelOpt; |
| llvm::Reloc::Model RelocModelOpt; |
| bool LoadAfterCompile; |
| |
| }; |
| |
| } // namespace bcc |
| |
| #endif // BCC_COMPILER_OPTION_H |