1 | //===- ArgumentPromotion.h - Promote by-reference arguments -----*- 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 | #ifndef LLVM_TRANSFORMS_IPO_ARGUMENTPROMOTION_H |
10 | #define LLVM_TRANSFORMS_IPO_ARGUMENTPROMOTION_H |
11 | |
12 | #include "llvm/Analysis/CGSCCPassManager.h" |
13 | #include "llvm/Analysis/LazyCallGraph.h" |
14 | #include "llvm/IR/PassManager.h" |
15 | |
16 | namespace llvm { |
17 | |
18 | /// Argument promotion pass. |
19 | /// |
20 | /// This pass walks the functions in each SCC and for each one tries to |
21 | /// transform it and all of its callers to replace indirect arguments with |
22 | /// direct (by-value) arguments. |
23 | class ArgumentPromotionPass : public PassInfoMixin<ArgumentPromotionPass> { |
24 | unsigned MaxElements; |
25 | |
26 | public: |
27 | ArgumentPromotionPass(unsigned MaxElements = 2u) : MaxElements(MaxElements) {} |
28 | |
29 | PreservedAnalyses run(LazyCallGraph::SCC &C, CGSCCAnalysisManager &AM, |
30 | LazyCallGraph &CG, CGSCCUpdateResult &UR); |
31 | }; |
32 | |
33 | } // end namespace llvm |
34 | |
35 | #endif // LLVM_TRANSFORMS_IPO_ARGUMENTPROMOTION_H |
36 |