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Summary:
This is 2/2 of moving ExprMutationAnalyzer from clangtidy to clang/Analysis.
ExprMutationAnalyzer is moved to clang/Analysis in D51948.
This diff migrates existing usages within clangtidy to point to the new
location and remove the old copy of ExprMutationAnalyzer.
Reviewers: george.karpenkov, JonasToth
Reviewed By: george.karpenkov
Subscribers: mgorny, a.sidorin, Szelethus, cfe-commits
Differential Revision: https://reviews.llvm.org/D51950
llvm-svn: 342006
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Summary:
This handles cases like this:
```
typedef int& IntRef;
void mutate(IntRef);
void f() {
int x;
mutate(x);
}
```
where the param type is a sugared type (`TypedefType`) instead of a
reference type directly.
Note that another category of similar but different cases are already
handled properly before:
```
typedef int Int;
void mutate(Int&);
void f() {
int x;
mutate(x);
}
```
Reviewers: aaron.ballman, alexfh, george.karpenkov
Subscribers: xazax.hun, a.sidorin, Szelethus, cfe-commits
Differential Revision: https://reviews.llvm.org/D50953
llvm-svn: 341986
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Summary:
For smart pointers like std::unique_ptr which uniquely owns the
underlying object, treat the mutation of the pointee as mutation of the
smart pointer itself.
This gives better behavior for cases like this:
```
void f(std::vector<std::unique_ptr<Foo>> v) { // undesirable analyze result of `v` as not mutated.
for (auto& p : v) {
p->mutate(); // only const member function `operator->` is invoked on `p`
}
}
```
Reviewers: hokein, george.karpenkov
Subscribers: xazax.hun, a.sidorin, Szelethus, cfe-commits
Differential Revision: https://reviews.llvm.org/D50883
llvm-svn: 341967
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ExprMutationAnalyzer""
This is the same as D50619 plus fixes for buildbot failures on windows.
The test failures on windows are caused by -fdelayed-template-parsing
and is fixed by forcing -fno-delayed-template-parsing on test cases that
requires AST for uninstantiated templates.
llvm-svn: 341891
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Summary:
Tests somehow break on windows (and only on windows)
http://lab.llvm.org:8011/builders/clang-x64-ninja-win7/builds/13003
http://lab.llvm.org:8011/builders/clang-x86-windows-msvc2015/builds/13747
I have yet figure out why so reverting to unbreak first.
Reviewers: george.karpenkov
Subscribers: xazax.hun, a.sidorin, Szelethus, cfe-commits
Differential Revision: https://reviews.llvm.org/D51898
llvm-svn: 341886
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Summary:
I have hit this the rough way, while trying to use this in D51870.
There is no particular point in storing the pointers, and moreover
the pointers are assumed to be non-null, and that assumption is not
enforced. If they are null, it won't be able to do anything good
with them anyway.
Initially i thought about simply adding asserts() that they are
not null, but taking/storing references looks like even cleaner solution?
Fixes [[ https://bugs.llvm.org/show_bug.cgi?id=38888 | PR38888 ]]
Reviewers: JonasToth, shuaiwang, alexfh, george.karpenkov
Reviewed By: shuaiwang
Subscribers: xazax.hun, a.sidorin, Szelethus, cfe-commits
Tags: #clang-tools-extra
Differential Revision: https://reviews.llvm.org/D51884
llvm-svn: 341854
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Summary:
- If a function is unresolved, assume it mutates its arguments
- Follow unresolved member expressions for nested mutations
Reviewers: aaron.ballman, JonasToth, george.karpenkov
Subscribers: xazax.hun, a.sidorin, cfe-commits
Differential Revision: https://reviews.llvm.org/D50619
llvm-svn: 341848
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llvm-svn: 335846
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llvm-svn: 335845
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does not have it on by default and it was failing on the PS4 linux bot because of this.
llvm-svn: 335799
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is mutated within a statement.
Summary:
(Originally started as a clang-tidy check but there's already D45444 so shifted to just adding ExprMutationAnalyzer)
`ExprMutationAnalyzer` is a generally useful helper that can be used in different clang-tidy checks for checking whether a given expression is (potentially) mutated within a statement (typically the enclosing compound statement.)
This is a more general and more powerful/accurate version of isOnlyUsedAsConst, which is used in ForRangeCopyCheck, UnnecessaryCopyInitialization.
It should also be possible to construct checks like D45444 (suggest adding const to variable declaration) or https://bugs.llvm.org/show_bug.cgi?id=21981 (suggest adding const to member function) using this helper function.
This function is tested by itself and is intended to stay generally useful instead of tied to any particular check.
Reviewers: hokein, alexfh, aaron.ballman, ilya-biryukov, george.karpenkov
Reviewed By: aaron.ballman
Subscribers: lebedev.ri, shuaiwang, rnkovacs, hokein, alexfh, aaron.ballman, a.sidorin, Eugene.Zelenko, xazax.hun, JonasToth, klimek, mgorny, cfe-commits
Tags: #clang-tools-extra
Patch by Shuai Wang.
Differential Revision: https://reviews.llvm.org/D45679
llvm-svn: 335736
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http://lab.llvm.org:8011/builders/llvm-clang-lld-x86_64-scei-ps4-ubuntu-fast/builds/31500
llvm-svn: 334606
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ExprMutationAnalyzer is a generally useful helper that can be used in different clang-tidy checks for checking whether a given expression is (potentially) mutated within a statement (typically the enclosing compound statement.) This is a more general and more powerful/accurate version of isOnlyUsedAsConst, which is used in ForRangeCopyCheck, UnnecessaryCopyInitialization.
Patch by Shuai Wang
llvm-svn: 334604
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