Commit 3dd5de267ae8650b168f3a856b21f639d3283480
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3c0f7cc60d
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Add constant propagation pass file
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llvm/src/lib/CSE231/CPAnalysis.cpp
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| File was created | 1 | //===- CPAnalysis.cpp | ||
| 2 | // | |||
| 3 | // The LLVM Compiler Infrastructure | |||
| 4 | // | |||
| 5 | // This file is distributed under the University of Illinois Open Source | |||
| 6 | // License. See LICENSE.TXT for details. | |||
| 7 | // | |||
| 8 | //===----------------------------------------------------------------------===// | |||
| 9 | // | |||
| 10 | // This file implements the constant propagation analysis. | |||
| 11 | // | |||
| 12 | //===----------------------------------------------------------------------===// | |||
| 13 | ||||
| 14 | #include "llvm/ADT/StringMap.h" | |||
| 15 | #include "llvm/ADT/DenseMap.h" | |||
| 16 | #include "llvm/IR/Function.h" | |||
| 17 | #include "llvm/IR/Module.h" | |||
| 18 | #include "llvm/IR/BasicBlock.h" | |||
| 19 | #include "llvm/IR/Instruction.h" | |||
| 20 | #include "llvm/Pass.h" | |||
| 21 | #include "llvm/Support/raw_ostream.h" | |||
| 22 | #include "llvm/Support/InstIterator.h" | |||
| 23 | using namespace llvm; | |||
| 24 | ||||
| 25 | namespace { | |||
| 26 | ||||
| 27 | struct CPAnalysis : public ModulePass { | |||
| 28 | static char ID; | |||
| 29 | ||||
| 30 | CPAnalysis() : ModulePass(ID) {} | |||
| 31 | ||||
| 32 | virtual bool runOnModule(Module &M) { | |||
| 33 | unsigned opcode; | |||
| 34 | IRBuilder<> builder(M.getContext()); | |||
| 35 | ||||
| 36 | // Iterating over all the functions in the module | |||
| 37 | for (Module::iterator FB = M.begin(), FE = M.end(); FB != FE; ++FB) { | |||
| 38 | ||||
| 39 | // get the list to work | |||
| 40 | // Worklist(LatticeDefinition, FB, LatticeDefinition.Top()); | |||
| 41 |