1552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines/* 2552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines * Copyright 2013, The Android Open Source Project 3552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines * 4552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines * Licensed under the Apache License, Version 2.0 (the "License"); 5552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines * you may not use this file except in compliance with the License. 6552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines * You may obtain a copy of the License at 7552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines * 8552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines * http://www.apache.org/licenses/LICENSE-2.0 9552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines * 10552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines * Unless required by applicable law or agreed to in writing, software 11552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines * distributed under the License is distributed on an "AS IS" BASIS, 12552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines * See the License for the specific language governing permissions and 14552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines * limitations under the License. 15552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines */ 16552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines 17552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines#include "llvm/IR/Module.h" 18552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines#include "llvm/Pass.h" 19552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines 20552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hinesnamespace slang { 21552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines 22552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines// Remove any readnone/readonly attributes from function parameters. 23552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines// Jellybean's LLVM version didn't support readnone/readonly as anything 24552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines// other than function attributes, so it will fail verification otherwise. 25552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines// Since we never ran the verifier in Jellybean, it ends up with potential 26552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines// crashes deeper in CodeGen. 27552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hinesclass StripUnknownAttributes : public llvm::ModulePass { 28552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hinespublic: 29552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines static char ID; 30552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines 31552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines StripUnknownAttributes(); 32552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines 33552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines bool runOnFunction(llvm::Function &F); 34552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines 35552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines // We have to use a ModulePass, since a FunctionPass only gets run on 36552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines // defined Functions (and not declared Functions). 37552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines virtual bool runOnModule(llvm::Module &M); 38552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines}; 39552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines 40552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hinesllvm::ModulePass * createStripUnknownAttributesPass(); 41552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines 42552d872e5cdc883d9f8e76d8c67d3a82e3ece488Stephen Hines} // namespace slang 43