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Author SHA1 Message Date
Valeriy Savchenko 239c53b72b [analyzer] Track runtime types represented by Obj-C Class objects 
Summary:
Objective-C Class objects can be used to do a dynamic dispatch on
class methods. The analyzer had a few places where we tried to overcome
the dynamic nature of it and still guess the actual function that
is being called. That was done mostly using some simple heuristics
covering the most widespread cases (e.g. [[self class] classmethod]).
This solution introduces a way to track types represented by Class
objects and work with that instead of direct AST matching.

rdar://problem/50739539

Differential Revision: https://reviews.llvm.org/D78286
 2020-04-29 13:35:53 +03:00
George Karpenkov a393e68b27 [analyzer] Move analyzer-eagerly-assume to AnalyzerOptions, enable by default 
Differential Revision: https://reviews.llvm.org/D51251

llvm-svn: 340963
 2018-08-29 20:29:17 +00:00
Dominic Chen 184c6242fa Reland 4: [analyzer] NFC: Update test infrastructure to support multiple constraint managers 
Summary: Replace calls to %clang/%clang_cc1 with %clang_analyze_cc1 when invoking static analyzer, and perform runtime substitution to select the appropriate constraint manager, per D28952.

Reviewers: xazax.hun, NoQ, zaks.anna, dcoughlin

Subscribers: mgorny, rgov, mikhail.ramalho, a.sidorin, cfe-commits

Differential Revision: https://reviews.llvm.org/D30373

llvm-svn: 296895
 2017-03-03 18:02:02 +00:00
Dominic Chen 09d66f7528 Revert "Reland 3: [analyzer] NFC: Update test infrastructure to support multiple constraint managers" 
This reverts commit ea36f1406e1f36bf456c3f3929839b024128e468.

llvm-svn: 296841
 2017-03-02 23:30:53 +00:00
Dominic Chen feaf9ff5ee Reland 3: [analyzer] NFC: Update test infrastructure to support multiple constraint managers 
Summary: Replace calls to %clang/%clang_cc1 with %clang_analyze_cc1 when invoking static analyzer, and perform runtime substitution to select the appropriate constraint manager, per D28952.

Reviewers: xazax.hun, NoQ, zaks.anna, dcoughlin

Subscribers: mgorny, rgov, mikhail.ramalho, a.sidorin, cfe-commits

Differential Revision: https://reviews.llvm.org/D30373

llvm-svn: 296837
 2017-03-02 23:05:45 +00:00
Dominic Chen 4a90bf8c3f Revert "Reland 2: [analyzer] NFC: Update test infrastructure to support multiple constraint managers" 
This reverts commit f93343c099fff646a2314cc7f4925833708298b1.

llvm-svn: 296836
 2017-03-02 22:58:06 +00:00
Dominic Chen 1cb0256a3c Reland 2: [analyzer] NFC: Update test infrastructure to support multiple constraint managers 
Summary: Replace calls to %clang/%clang_cc1 with %clang_analyze_cc1 when invoking static analyzer, and perform runtime substitution to select the appropriate constraint manager, per D28952.

Reviewers: xazax.hun, NoQ, zaks.anna, dcoughlin

Subscribers: mgorny, rgov, mikhail.ramalho, a.sidorin, cfe-commits

Differential Revision: https://reviews.llvm.org/D30373

llvm-svn: 296835
 2017-03-02 22:45:24 +00:00
Dominic Chen 00355a51d0 Revert "Reland: [analyzer] NFC: Update test infrastructure to support multiple constraint managers" 
This reverts commit 1b28d0b10e1c8feccb971abb6ef7a18bee589830.

llvm-svn: 296422
 2017-02-28 01:50:23 +00:00
Dominic Chen 59cd893320 Reland: [analyzer] NFC: Update test infrastructure to support multiple constraint managers 
Summary: Replace calls to %clang/%clang_cc1 with %clang_analyze_cc1 when invoking static analyzer, and perform runtime substitution to select the appropriate constraint manager, per D28952.

Reviewers: xazax.hun, NoQ, zaks.anna, dcoughlin

Subscribers: mgorny, rgov, mikhail.ramalho, a.sidorin, cfe-commits

Differential Revision: https://reviews.llvm.org/D30373

llvm-svn: 296414
 2017-02-28 00:02:36 +00:00
Dominic Chen 8589e10c30 Revert "[analyzer] NFC: Update test infrastructure to support multiple constraint managers" 
This reverts commit 8e7780b9e59ddaad1800baf533058d2c064d4787.

llvm-svn: 296317
 2017-02-27 03:29:25 +00:00
Dominic Chen 02064a3076 [analyzer] NFC: Update test infrastructure to support multiple constraint managers 
Summary: Replace calls to %clang/%clang_cc1 with %clang_analyze_cc1 when invoking static analyzer, and perform runtime substitution to select the appropriate constraint manager, per D28952.

Reviewers: xazax.hun, NoQ, zaks.anna, dcoughlin

Subscribers: mgorny, rgov, mikhail.ramalho, a.sidorin, cfe-commits

Differential Revision: https://reviews.llvm.org/D30373

llvm-svn: 296312
 2017-02-27 02:36:15 +00:00
Anna Zaks dcfc191404 [analyzer] Support inlining of '[self classMethod]' and '[[self class] classMethod]' 
Differential Revision: https://reviews.llvm.org/D28495

llvm-svn: 291867
 2017-01-13 00:50:47 +00:00
Daniel Marjamaki d99ebc03f4 [analyzer] Don't merge different return nodes in ExplodedGraph 
Returns when calling an inline function should not be merged in the ExplodedGraph unless they are same.

Differential Revision: https://reviews.llvm.org/D25326

llvm-svn: 283554
 2016-10-07 14:21:08 +00:00
Jordan Rose 3553bb384b [analyzer] Make inlining decisions based on the callee being variadic. 
...rather than trying to figure it out from the call site, and having
people complain that we guessed wrong and that a prototype-less call is
the same as a variadic call on their system. More importantly, fix a
crash when there's no decl at the call site (though we could have just
returned a default value).

<rdar://problem/15037033>

llvm-svn: 191599
 2013-09-28 02:04:19 +00:00
Anna Zaks 6bab4ef4e8 [analyzer] Replace "-analyzer-ipa" with "-analyzer-config ipa". 
The idea is to eventually place all analyzer options under
"analyzer-config". In addition, this lays the ground for introduction of
a high-level analyzer mode option, which will influence the
default setting for IPAMode.

llvm-svn: 173385
 2013-01-24 23:15:30 +00:00
Anna Zaks 799ad50ffb [analyzer] Address Jordan's comments for r161822, r161683. 
Add a TODO test case for r161822 - calling self from a class method.

Remove a TODO comment for r161683 - value2 is not a property - we just
have method names that look like they are getters/setters for a
property.

llvm-svn: 161884
 2012-08-14 18:35:06 +00:00
Anna Zaks 75f49a9c07 [analyzer] Track if a region can be a subclass in the dynamic type info. 
When object is allocated with alloc or init, we assume it cannot be a
subclass (currently used only for bifurcation purposes).

llvm-svn: 161682
 2012-08-10 18:55:58 +00:00
Anna Zaks e49190984c [analyzer] Add -analyzer-ipa=dynamic option for inlining dynamically 
dispatched methods.

Disabled by default for now.

llvm-svn: 160988
 2012-07-30 20:31:18 +00:00
Anna Zaks 8e3b260313 [analyzer] Another false positive in Class method inlining. 
We are currently not setting the self object to the calling class object
during inlining nor do we reason about [AAA class].

llvm-svn: 160884
 2012-07-27 19:07:34 +00:00
Anna Zaks 15b13a9f0c [analyzer] Address Jordan's and Fariborz's review of r160768. 
llvm-svn: 160883
 2012-07-27 19:07:32 +00:00
Anna Zaks 83f1495fcb [analyzer] Inline ObjC class methods. 
- Some cleanup(the TODOs) will be done after ObjC method inlining is
complete.
- Simplified CallEvent::getDefinition not to require ISDynamicDispatch
parameter.
- Also addressed Jordan's comments from r160530.

llvm-svn: 160768
 2012-07-26 00:27:51 +00:00