Commit Graph

30 Commits

Author SHA1 Message Date
George Karpenkov d37ff4e888 [analyzer] [RetainCountChecker] Track input parameters to the top-level function
Track them for ISL/OS objects by default, and for NS/CF under a flag.

rdar://47536377

Differential Revision: https://reviews.llvm.org/D57356

llvm-svn: 352534
2019-01-29 19:29:59 +00:00
George Karpenkov 6fdd2bd503 [analyzer] Port RetainSummaryManager to the new AnyCall interface, decouple ARCMT from the analyzer
rdar://19694750

Differential Revision: https://reviews.llvm.org/D57127

llvm-svn: 352149
2019-01-25 01:24:04 +00:00
George Karpenkov a9e295604a [analyzer] Insert notes in RetainCountChecker where our dynamic cast modeling assumes 'null' output
rdar://47397214

Differential Revision: https://reviews.llvm.org/D56952

llvm-svn: 351865
2019-01-22 19:51:00 +00:00
Chandler Carruth 2946cd7010 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00
George Karpenkov 2c2d0b6e97 Revert "Fix failing MSan bots"
This reverts commit 2cedaaef383d8d6142046074ffebc2bb5a914778.

Revert with a fix.

llvm-svn: 351575
2019-01-18 19:24:55 +00:00
Vlad Tsyrklevich d5dd6a5fdd Fix failing MSan bots
Revert r351508-351514, this block of changes introduced a consistent
MSan failure on the sanitizer bots.

llvm-svn: 351528
2019-01-18 08:43:22 +00:00
George Karpenkov 1a5ce51626 [analyzer] Introduce proper diagnostic for freeing unowned object
Insert a note when the object becomes not (exclusively) owned.

Differential Revision: https://reviews.llvm.org/D56891

llvm-svn: 351514
2019-01-18 03:13:53 +00:00
George Karpenkov 9bf9938492 [analyzer] [NFC] Clean up messy handling of bug categories in RetainCountChecker
https://reviews.llvm.org/D56887

llvm-svn: 351512
2019-01-18 03:13:27 +00:00
George Karpenkov f153cdfb16 [analyzer] [NFC] Yet another minor cleanup of RetainCountChecker
Differential Revision: https://reviews.llvm.org/D56744

llvm-svn: 351393
2019-01-16 23:21:15 +00:00
George Karpenkov 704913f562 [analyzer] [NFC] Remove unused undefined method.
Wow, at no point the linker or compiler complaints about that!

llvm-svn: 351096
2019-01-14 18:54:35 +00:00
George Karpenkov 0bb17c4634 [analyzer] Update the category name for RetainCountChecker reports
..now that it includes OSObjects

rdar://46509986

Differential Revision: https://reviews.llvm.org/D56404

llvm-svn: 350869
2019-01-10 18:16:25 +00:00
George Karpenkov 42c6ac748e [analyzer] [NFC] [RetainCountChecker] Remove dead unused map
Differential Revision: https://reviews.llvm.org/D56402

llvm-svn: 350868
2019-01-10 18:16:10 +00:00
George Karpenkov 717c4c0e2b [analyzer] [RetainCountChecker] [NFC] Remove SummaryLog
The complicated machinery for passing the summary log around is actually
only used for one thing! To figure out whether the "dealloc" message was
sent.

Since I have tried to extend it for other uses and failed (it's actually
very hard to use), I think it's much better to simply use a tag and
remove the summary log altogether.

Differential Revision: https://reviews.llvm.org/D56228

llvm-svn: 350864
2019-01-10 18:15:17 +00:00
George Karpenkov 9cbcc21aed [analyzer] [RetainCountChecker] [NFC] Remove redundant enum items *Msg, as the object type is already communicated by a separate field
Differential Revision: https://reviews.llvm.org/D56070

llvm-svn: 350859
2019-01-10 18:14:12 +00:00
George Karpenkov 585a210e5f [analyzer] [NFC] Track object type with ArgEffect in RetainCountChecker.
This would be needed in the future.

https://reviews.llvm.org/D56040

llvm-svn: 350858
2019-01-10 18:13:59 +00:00
George Karpenkov 7e3016dec4 [analyzer] [NFC] Move ObjKind into a separate top-level enum in RetainSummaryManager.
Allows using it in future outside of RetEffect.

Differential Revision: https://reviews.llvm.org/D56039

llvm-svn: 350857
2019-01-10 18:13:46 +00:00
Kristof Umann 76a21502fd [analyzer][NFC] Move CheckerRegistry from the Core directory to Frontend
ClangCheckerRegistry is a very non-obvious, poorly documented, weird concept.
It derives from CheckerRegistry, and is placed in lib/StaticAnalyzer/Frontend,
whereas it's base is located in lib/StaticAnalyzer/Core. It was, from what I can
imagine, used to circumvent the problem that the registry functions of the
checkers are located in the clangStaticAnalyzerCheckers library, but that
library depends on clangStaticAnalyzerCore. However, clangStaticAnalyzerFrontend
depends on both of those libraries.

One can make the observation however, that CheckerRegistry has no place in Core,
it isn't used there at all! The only place where it is used is Frontend, which
is where it ultimately belongs.

This move implies that since
include/clang/StaticAnalyzer/Checkers/ClangCheckers.h only contained a single function:

class CheckerRegistry;

void registerBuiltinCheckers(CheckerRegistry &registry);

it had to re purposed, as CheckerRegistry is no longer available to
clangStaticAnalyzerCheckers. It was renamed to BuiltinCheckerRegistration.h,
which actually describes it a lot better -- it does not contain the registration
functions for checkers, but only those generated by the tblgen files.

Differential Revision: https://reviews.llvm.org/D54436

llvm-svn: 349275
2018-12-15 16:23:51 +00:00
George Karpenkov 27db33075c [analyzer] Move out tracking retain count for OSObjects into a separate checker
Allow enabling and disabling tracking of ObjC/CF objects
separately from tracking of OS objects.

Differential Revision: https://reviews.llvm.org/D55400

llvm-svn: 348638
2018-12-07 20:21:51 +00:00
George Karpenkov 62db886062 [analyzer] [NFC] Minor refactoring of RetainCountDiagnostics
Move visitors to the implementation file, move a complicated logic into
a function.

Differential Revision: https://reviews.llvm.org/D55036

llvm-svn: 347946
2018-11-30 02:18:23 +00:00
Kristof Umann c83b0dda49 [analyzer][NFC] Fix some incorrect uses of -analyzer-config options
I'm in the process of refactoring AnalyzerOptions. The main motivation behind
here is to emit warnings if an invalid -analyzer-config option is given from
the command line, and be able to list them all.

In this patch, I found some flags that should've been used as checker options,
or have absolutely no mention of in AnalyzerOptions, or are nonexistent.

- NonLocalizedStringChecker now uses its "AggressiveReport" flag as a checker
    option
- lib/StaticAnalyzer/Frontend/ModelInjector.cpp now accesses the "model-path"
    option through a getter in AnalyzerOptions
- -analyzer-config path-diagnostics-alternate=false is not a thing, I removed it,
- lib/StaticAnalyzer/Checkers/AllocationDiagnostics.cpp and
    lib/StaticAnalyzer/Checkers/AllocationDiagnostics.h are weird, they actually
    only contain an option getter. I deleted them, and fixed RetainCountChecker
    to get it's "leak-diagnostics-reference-allocation" option as a checker option,
- "region-store-small-struct-limit" has a proper getter now.

Differential Revision: https://reviews.llvm.org/D53276

llvm-svn: 345985
2018-11-02 15:48:10 +00:00
George Karpenkov 57ef3a02e2 [analyzer] Enable retain count checking for OSObject by defa
The FP rate seems to be good enough now.

Differential Revision: https://reviews.llvm.org/D53849

llvm-svn: 345745
2018-10-31 17:38:12 +00:00
Sam McCall 5da4d75877 Remove top-level using declaration from header files, as these aliases leak.
Reviewers: ilya-biryukov

Subscribers: arphaman, cfe-commits

Differential Revision: https://reviews.llvm.org/D53135

llvm-svn: 344337
2018-10-12 12:21:29 +00:00
George Karpenkov 04553e530f [analyzer] Process state in checkEndFunction in RetainCountChecker
Modify the RetainCountChecker to perform state "adjustments" in
checkEndFunction, as performing work in PreStmt<ReturnStmt> does not
work with destructors.
The previous version made an implicit assumption that no code runs
after the return statement is executed.

rdar://43945028

Differential Revision: https://reviews.llvm.org/D52338

llvm-svn: 342770
2018-09-21 20:37:20 +00:00
George Karpenkov ab0011ebc0 [analyzer] Preliminary version of retain count checking for OSObjects
Has quite a lot of false positives, disabled behind the flag.

Differential Revision: https://reviews.llvm.org/D50880

llvm-svn: 340502
2018-08-23 00:26:59 +00:00
George Karpenkov 6e9fd1377d [analyzer] [NFC] Fix minor formatting issues in RetainCountChecker
Differential Revision: https://reviews.llvm.org/D51072

llvm-svn: 340378
2018-08-22 01:17:09 +00:00
George Karpenkov efef49cd2f [analyzer] [NFC] Split up RetainSummaryManager from RetainCountChecker - try #2
Turns out it can't be removed from the analyzer since it relies on CallEvent.

Moving to staticAnalyzer/core

Differential Revision: https://reviews.llvm.org/D51023

llvm-svn: 340247
2018-08-21 03:09:02 +00:00
Bruno Cardoso Lopes bb3b7cff96 Revert "[analyzer] [NFC] Split up RetainSummaryManager from RetainCountChecker"
This reverts commit a786521fa66c72edd308baff0c08961b6d964fb1.

Bots haven't caught up yet, but broke modules build with:

../tools/clang/include/clang/StaticAnalyzer/Checkers/MPIFunctionClassifier.h:18:10:
fatal error: cyclic dependency in module 'Clang_StaticAnalyzer_Core':
Clang_StaticAnalyzer_Core -> Clang_Analysis ->
Clang_StaticAnalyzer_Checkers -> Clang_StaticAnalyzer_Core
         ^

llvm-svn: 340117
2018-08-18 03:22:11 +00:00
George Karpenkov 0ac54fad53 [analyzer] [NFC] Split up RetainSummaryManager from RetainCountChecker
ARCMigrator is using code from RetainCountChecker, which is a layering
violation (and it also does it badly, by using a different header, and
then relying on implementation being present in a header file).

This change splits up RetainSummaryManager into a separate library in
lib/Analysis, which can be used independently of a checker.

Differential Revision: https://reviews.llvm.org/D50934

llvm-svn: 340114
2018-08-18 01:45:50 +00:00
George Karpenkov 03011b2d98 [analyzer] [NFC] Move ObjCRetainCount to include/Analysis
Differential Revision: https://reviews.llvm.org/D50869

llvm-svn: 340096
2018-08-17 21:42:32 +00:00
George Karpenkov 70c2ee30bc [analyzer] [NFC] Split up RetainCountChecker
At some point, staring at 4k+ LOC file becomes a bit hard.

Differential Revision: https://reviews.llvm.org/D50821

llvm-svn: 340092
2018-08-17 21:41:07 +00:00