LLVM  13.0.0git
CalledValuePropagation.h
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1 //===- CalledValuePropagation.h - Propagate called values -------*- 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 file implements a transformation that attaches !callees metadata to
10 // indirect call sites. For a given call site, the metadata, if present,
11 // indicates the set of functions the call site could possibly target at
12 // run-time. This metadata is added to indirect call sites when the set of
13 // possible targets can be determined by analysis and is known to be small. The
14 // analysis driving the transformation is similar to constant propagation and
15 // makes uses of the generic sparse propagation solver.
16 //
17 //===----------------------------------------------------------------------===//
18 
19 #ifndef LLVM_TRANSFORMS_IPO_CALLEDVALUEPROPAGATION_H
20 #define LLVM_TRANSFORMS_IPO_CALLEDVALUEPROPAGATION_H
21 
22 #include "llvm/IR/PassManager.h"
23 
24 namespace llvm {
25 
27  : public PassInfoMixin<CalledValuePropagationPass> {
28 public:
30 };
31 } // namespace llvm
32 
33 #endif // LLVM_TRANSFORMS_IPO_CALLEDVALUEPROPAGATION_H
llvm::PreservedAnalyses
A set of analyses that are preserved following a run of a transformation pass.
Definition: PassManager.h:155
llvm
Definition: AllocatorList.h:23
llvm::CalledValuePropagationPass::run
PreservedAnalyses run(Module &M, ModuleAnalysisManager &)
Definition: CalledValuePropagation.cpp:400
M
We currently emits eax Perhaps this is what we really should generate is Is imull three or four cycles eax eax The current instruction priority is based on pattern complexity The former is more complex because it folds a load so the latter will not be emitted Perhaps we should use AddedComplexity to give LEA32r a higher priority We should always try to match LEA first since the LEA matching code does some estimate to determine whether the match is profitable if we care more about code then imull is better It s two bytes shorter than movl leal On a Pentium M
Definition: README.txt:252
llvm::PassInfoMixin
A CRTP mix-in to automatically provide informational APIs needed for passes.
Definition: PassManager.h:374
llvm::Module
A Module instance is used to store all the information related to an LLVM module.
Definition: Module.h:67
llvm::CalledValuePropagationPass
Definition: CalledValuePropagation.h:26
PassManager.h
llvm::AnalysisManager
A container for analyses that lazily runs them and caches their results.
Definition: InstructionSimplify.h:44