LLVM  10.0.0svn
SCCP.h
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1 //===- SCCP.h - Sparse Conditional Constant Propagation ---------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This pass implements interprocedural sparse conditional constant
10 // propagation and merging.
11 //
12 // Specifically, this:
13 // * Assumes values are constant unless proven otherwise
14 // * Assumes BasicBlocks are dead unless proven otherwise
15 // * Proves values to be constant, and replaces them with constants
16 // * Proves conditional branches to be unconditional
17 //
18 //===----------------------------------------------------------------------===//
19 
20 #ifndef LLVM_TRANSFORMS_IPO_SCCP_H
21 #define LLVM_TRANSFORMS_IPO_SCCP_H
22 
23 #include "llvm/IR/PassManager.h"
24 
25 namespace llvm {
26 
27 class Module;
28 
29 /// Pass to perform interprocedural constant propagation.
30 class IPSCCPPass : public PassInfoMixin<IPSCCPPass> {
31 public:
33 };
34 
35 } // end namespace llvm
36 
37 #endif // LLVM_TRANSFORMS_IPO_SCCP_H
This class represents lattice values for constants.
Definition: AllocatorList.h:23
A Module instance is used to store all the information related to an LLVM module. ...
Definition: Module.h:65
A CRTP mix-in to automatically provide informational APIs needed for passes.
Definition: PassManager.h:372
Pass to perform interprocedural constant propagation.
Definition: SCCP.h:30
A set of analyses that are preserved following a run of a transformation pass.
Definition: PassManager.h:153
PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM)
Definition: SCCP.cpp:10
A container for analyses that lazily runs them and caches their results.
This header defines various interfaces for pass management in LLVM.