| // Copyright 2016 The SwiftShader Authors. All Rights Reserved. |
| // |
| // 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 "Nucleus.hpp" |
| #include "Routine.hpp" |
| |
| namespace sw |
| { |
| #define For(init, cond, inc) \ |
| init; \ |
| for(llvm::BasicBlock *loopBB__ = beginLoop(), \ |
| *bodyBB__ = Nucleus::createBasicBlock(), \ |
| *endBB__ = Nucleus::createBasicBlock(), \ |
| *onceBB__ = endBB__; \ |
| onceBB__ && branch(cond, bodyBB__, endBB__); \ |
| inc, onceBB__ = 0, Nucleus::createBr(loopBB__), Nucleus::setInsertBlock(endBB__)) |
| |
| #define While(cond) For(((void*)0), cond, ((void*)0)) |
| |
| #define Do \ |
| { \ |
| llvm::BasicBlock *body = Nucleus::createBasicBlock(); \ |
| Nucleus::createBr(body); \ |
| Nucleus::setInsertBlock(body); |
| |
| #define Until(cond) \ |
| llvm::BasicBlock *end = Nucleus::createBasicBlock(); \ |
| Nucleus::createCondBr((cond).value, end, body); \ |
| Nucleus::setInsertBlock(end); \ |
| } |
| |
| #define If(cond) \ |
| for(llvm::BasicBlock *trueBB__ = Nucleus::createBasicBlock(), \ |
| *falseBB__ = Nucleus::createBasicBlock(), \ |
| *endBB__ = Nucleus::createBasicBlock(), \ |
| *onceBB__ = endBB__; \ |
| onceBB__ && branch(cond, trueBB__, falseBB__); \ |
| onceBB__ = 0, Nucleus::createBr(endBB__), Nucleus::setInsertBlock(falseBB__), Nucleus::createBr(endBB__), Nucleus::setInsertBlock(endBB__)) |
| |
| #define Else \ |
| for(llvm::BasicBlock *endBB__ = Nucleus::getInsertBlock(), \ |
| *falseBB__ = Nucleus::getPredecessor(endBB__), \ |
| *onceBB__ = endBB__; \ |
| onceBB__ && elseBlock(falseBB__); \ |
| onceBB__ = 0, Nucleus::createBr(endBB__), Nucleus::setInsertBlock(endBB__)) |
| } |