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File indexing completed on 2026-05-10 08:44:42
0001 //===- SCCP.cpp - Sparse Conditional Constant Propagation -------*- C++ -*-===// 0002 // 0003 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 0004 // See https://llvm.org/LICENSE.txt for license information. 0005 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 0006 // 0007 //===----------------------------------------------------------------------===// 0008 // 0009 // \file 0010 // This file implements sparse conditional constant propagation and merging: 0011 // 0012 // Specifically, this: 0013 // * Assumes values are constant unless proven otherwise 0014 // * Assumes BasicBlocks are dead unless proven otherwise 0015 // * Proves values to be constant, and replaces them with constants 0016 // * Proves conditional branches to be unconditional 0017 // 0018 //===----------------------------------------------------------------------===// 0019 0020 #ifndef LLVM_TRANSFORMS_SCALAR_SCCP_H 0021 #define LLVM_TRANSFORMS_SCALAR_SCCP_H 0022 0023 #include "llvm/IR/PassManager.h" 0024 0025 namespace llvm { 0026 class Function; 0027 0028 /// This pass performs function-level constant propagation and merging. 0029 class SCCPPass : public PassInfoMixin<SCCPPass> { 0030 public: 0031 PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM); 0032 }; 0033 0034 } // end namespace llvm 0035 0036 #endif // LLVM_TRANSFORMS_SCALAR_SCCP_H
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