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https://github.com/Gericom/teak-llvm.git
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c5cc03377e
Summary:
The "performance-inefficient-vector-operation" check finds vector oprations in
for-loop statements which may cause multiple memory reallocations.
This is the first version, only detects typical for-loop:
```
std::vector<int> v;
for (int i = 0; i < n; ++i) {
v.push_back(i);
}
// or
for (int i = 0; i < v2.size(); ++i) {
v.push_back(v2[i]);
}
```
We can extend it to handle more cases like for-range loop in the future.
Reviewers: alexfh, aaron.ballman
Reviewed By: aaron.ballman
Subscribers: zaks.anna, Eugene.Zelenko, mgorny, cfe-commits, djasper
Differential Revision: https://reviews.llvm.org/D31757
llvm-svn: 300534
60 lines
2.2 KiB
C++
60 lines
2.2 KiB
C++
//===--- PeformanceTidyModule.cpp - clang-tidy ----------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "../ClangTidy.h"
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#include "../ClangTidyModule.h"
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#include "../ClangTidyModuleRegistry.h"
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#include "FasterStringFindCheck.h"
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#include "ForRangeCopyCheck.h"
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#include "ImplicitCastInLoopCheck.h"
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#include "InefficientStringConcatenationCheck.h"
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#include "InefficientVectorOperationCheck.h"
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#include "TypePromotionInMathFnCheck.h"
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#include "UnnecessaryCopyInitialization.h"
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#include "UnnecessaryValueParamCheck.h"
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namespace clang {
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namespace tidy {
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namespace performance {
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class PerformanceModule : public ClangTidyModule {
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public:
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void addCheckFactories(ClangTidyCheckFactories &CheckFactories) override {
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CheckFactories.registerCheck<FasterStringFindCheck>(
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"performance-faster-string-find");
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CheckFactories.registerCheck<ForRangeCopyCheck>(
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"performance-for-range-copy");
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CheckFactories.registerCheck<ImplicitCastInLoopCheck>(
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"performance-implicit-cast-in-loop");
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CheckFactories.registerCheck<InefficientStringConcatenationCheck>(
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"performance-inefficient-string-concatenation");
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CheckFactories.registerCheck<InefficientVectorOperationCheck>(
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"performance-inefficient-vector-operation");
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CheckFactories.registerCheck<TypePromotionInMathFnCheck>(
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"performance-type-promotion-in-math-fn");
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CheckFactories.registerCheck<UnnecessaryCopyInitialization>(
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"performance-unnecessary-copy-initialization");
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CheckFactories.registerCheck<UnnecessaryValueParamCheck>(
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"performance-unnecessary-value-param");
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}
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};
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// Register the PerformanceModule using this statically initialized variable.
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static ClangTidyModuleRegistry::Add<PerformanceModule>
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X("performance-module", "Adds performance checks.");
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} // namespace performance
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// This anchor is used to force the linker to link in the generated object file
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// and thus register the PerformanceModule.
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volatile int PerformanceModuleAnchorSource = 0;
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} // namespace tidy
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} // namespace clang
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