1 //===- GuardWidening.h - ----------------------------------------*- 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 // Guard widening is an optimization over the @llvm.experimental.guard intrinsic
10 // that (optimistically) combines multiple guards into one to have fewer checks
11 // at runtime.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 
16 #ifndef LLVM_TRANSFORMS_SCALAR_GUARD_WIDENING_H
17 #define LLVM_TRANSFORMS_SCALAR_GUARD_WIDENING_H
18 
19 #include "llvm/Analysis/LoopInfo.h"
20 #include "llvm/IR/PassManager.h"
21 #include "llvm/Transforms/Scalar/LoopPassManager.h"
22 
23 namespace llvm {
24 
25 class Function;
26 
27 struct GuardWideningPass : public PassInfoMixin<GuardWideningPass> {
28   PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
29   PreservedAnalyses run(Loop &L, LoopAnalysisManager &AM,
30                         LoopStandardAnalysisResults &AR, LPMUpdater &U);
31 };
32 }
33 
34 
35 #endif  // LLVM_TRANSFORMS_SCALAR_GUARD_WIDENING_H
36