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43 Commits

Author SHA1 Message Date
Daniel Marjamaki 3d8d6ed01f [analyzer] Clarify 'uninitialized function argument' messages 
Differential Revision: https://reviews.llvm.org/D30341

llvm-svn: 297283
 2017-03-08 15:22:24 +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
Daniel Marjamaki e97838f49e [analyzer] clarify 'result is garbage value' when it is out of bounds 
Differential Revision: https://reviews.llvm.org/D28278

llvm-svn: 296326
 2017-02-27 10:44:24 +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
Jordan Rose add14263ea [analyzer] Don't warn for returning void expressions in void blocks. 
This was slightly tricky because BlockDecls don't currently store an
inferred return type. However, we can rely on the fact that blocks with
inferred return types will have return statements that match the inferred
type.

<rdar://problem/13665798>

llvm-svn: 179699
 2013-04-17 18:03:48 +00:00
Anna Zaks 5d2964e770 [analyzer] Do not report use of undef on "return foo();" when the return type is void. 
Fixes a false positive found by analyzing LLVM code base.

llvm-svn: 163750
 2012-09-12 22:57:40 +00:00
Ted Kremenek 73665188fc Really remove FlatStoreManager and BasicStoreManager, this time from the driver. Also remove associated tests. Sorry for the messy commits; this is the result of a botched Git merge. 
llvm-svn: 136422
 2011-07-28 23:08:16 +00:00
Argyrios Kyrtzidis 9eb02dfa89 [analyzer] Remove '-analyzer-check-objc-mem' flag, the nominee for best misnomer award. 
llvm-svn: 126676
 2011-02-28 19:49:42 +00:00
Argyrios Kyrtzidis d4d3cee6e4 [analyzer] Migrate UndefResultChecker to CheckerV2. 
llvm-svn: 126614
 2011-02-28 01:27:22 +00:00
Ted Kremenek 5cdaeaaa1d Clean up obtuse wording of checker diagnostic of using an uninitialized value in a function call. 
Fixes: <rdar://problem/8409480> “warning: Pass-by-value argument in function call is undefined” message can be improved
llvm-svn: 113554
 2010-09-09 22:51:55 +00:00
Ted Kremenek 2f2692f8ca Rename -cc1 option '-checker-cfref' to '-analyzer-check-objc-mem'. 
llvm-svn: 95348
 2010-02-05 02:06:54 +00:00
Daniel Dunbar 8fbe78f6fc Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'. 
- This is designed to make it obvious that %clang_cc1 is a "test variable"
   which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it
   can be useful to redefine what gets run as 'clang -cc1' (for example, to set
   a default target).

llvm-svn: 91446
 2009-12-15 20:14:24 +00:00
Zhongxing Xu 27f686f8ec Replace clang-cc with clang -cc1. 
llvm-svn: 91272
 2009-12-14 06:34:20 +00:00
Daniel Dunbar 8b57697954 Eliminate &&s in tests. 
- 'for i in $(find . -type f); do sed -e 's#\(RUN:.*[^ ]\) *&& *$#\1#g' $i | FileUpdate $i; done', for the curious.

llvm-svn: 86430
 2009-11-08 01:45:36 +00:00
Ted Kremenek d9120d3575 Shorten the static analyzer diagnostic for 'use of garbage value'. 
llvm-svn: 82672
 2009-09-24 00:44:26 +00:00
Ted Kremenek 4f335c300a Have divide-by-zero checker not handled undefined denominators. This is handled by the generic checking for undefined operands for BinaryOperators. 
llvm-svn: 82019
 2009-09-16 06:04:26 +00:00
Ted Kremenek 7020eae076 Introduce "DefinedOrUnknownSVal" into the SVal class hierarchy, providing a way 
to statically type various methods in SValuator/GRState as required either a
defined value or a defined-but-possibly-unknown value. This leads to various
logic cleanups in GRExprEngine, and lets the compiler enforce via type checking
our assumptions about what symbolic values are possibly undefined and what are
not.

Along the way, clean up some of the static analyzer diagnostics regarding the uses of uninitialized values.

llvm-svn: 81579
 2009-09-11 22:07:28 +00:00
Ted Kremenek 4301526e8d Remove 'StoreManager::OldCastRegion()', TypedViewRegion (which only 
OldCastRegion used), and the associated command line option
'-analyzer-store=old-basic-cast'.

llvm-svn: 77509
 2009-07-29 21:43:22 +00:00
Ted Kremenek a41d9dd1f1 Fix PR 4631. The compound initializers of unions were not being evaluated, which 
could cause false positives if any the subexpressions had side-effects. These
initializers weren't evaluated because the StoreManager would need to handle
them, but that's an orthogonal problem of whether or not the StoreManager can
handle the binding.

llvm-svn: 77361
 2009-07-28 20:46:55 +00:00
Ted Kremenek faf0c64d9d Fix regression in attribute 'nonnull' checking when a transition node 
was created but not added to the destination NodeSet.  This fixes PR 4630.

llvm-svn: 77353
 2009-07-28 19:24:31 +00:00
Ted Kremenek f66557978e Switch BasicStoreManager to use the new CastRegion implementation by default, 
and replace the 'clang-cc' option '-analyzer-store=basic-new-cast' with
'-analyzer-store=basic-old-cast'. We'll keep the old CastRegion implementation
around for a little while for regression testing.

llvm-svn: 75209
 2009-07-10 00:41:58 +00:00
Ted Kremenek eea8c29aa3 Make 'BasicStoreManager' + 'NewCastRegion' testable from the command line using '-analyzer-store=basic-new-cast'. 
llvm-svn: 74865
 2009-07-06 21:58:46 +00:00
Ted Kremenek bae777254a Enhance diagnostics value tracking logic for null dereferences and uninitialized values. 
llvm-svn: 71700
 2009-05-13 19:16:35 +00:00
Ted Kremenek 701fc10087 Add a few more analyzer test cases. 
llvm-svn: 68326
 2009-04-02 17:25:00 +00:00
Daniel Dunbar a45cf5b6b0 Rename clang to clang-cc. 
Tests and drivers updated, still need to shuffle dirs.

llvm-svn: 67602
 2009-03-24 02:24:46 +00:00
Douglas Gregor 5741efbba0 Fix PR3509 by providing correct starting locations for initializer lists 
llvm-svn: 65777
 2009-03-01 17:12:46 +00:00
Ted Kremenek b535181199 Static Analyzer driver/options (partial) cleanup: 
- Move all analyzer options logic to AnalysisConsumer.cpp.
- Unified specification of stores/constraints/output to be:
   -analyzer-output=...
   -analyzer-store=...
   -analyzer-constraints=...
  instead of -analyzer-range-constraints, -analyzer-store-basic, etc.
- Updated drivers (ccc-analyzer, scan-builds, new ccc) to obey this new
  interface
- Updated test cases to conform to new driver options

llvm-svn: 64737
 2009-02-17 04:27:41 +00:00
Daniel Dunbar 34fc92fdc2 Add -analyze action to run static analyzer, instead of inferring from 
individual checker options.

llvm-svn: 62634
 2009-01-20 23:17:32 +00:00
Ted Kremenek 300c9cc8c6 Fix <rdar://problem/6451816>: 
- Because of the introduction of AnonTypedRegions when reasoning about casts, we
  had a regression in the "symbolication" of variable values passed-by-reference
  to a function. This is now fixed in CFRefCount.cpp (-checker-cfref) by
  blasting through the layer of AnonTypedRegions when symbolicating the value of
  the variable. This logic may get moved elsewhere. Note that this change
  affects only -checker-cfref and not -checker-simple; eventually this logic
  should get pulled out of CFRefCount.cpp into a more common place. All users
  use -checker-cfref by default, and -checker-simple should probably just be
  removed.  
- Updated test 'Analysis/uninit-vals-ps.c' to only use -checker-cfref and added
  a test case for this regression.

llvm-svn: 61147
 2008-12-17 19:42:34 +00:00
Ted Kremenek dfcbcfe328 Add checker test case: warn about returning an uninitialized value to the caller. 
llvm-svn: 59765
 2008-11-21 00:28:47 +00:00
Ted Kremenek c7792048ff Enable test file for 'region store' in addition to basic store. 
llvm-svn: 59762
 2008-11-21 00:15:15 +00:00
Zhongxing Xu 06b377668d Split region store specific test cases. 
llvm-svn: 59683
 2008-11-20 00:46:15 +00:00
Zhongxing Xu 16a92afc4b Add test for path-sensitive uninit-val detection involving struct field. 
llvm-svn: 59620
 2008-11-19 11:10:42 +00:00
Ted Kremenek b120ff1b95 Fixed bug in the transfer function for dereferences: the loaded value from EvalLoad should bind to the UnaryOperator*, not its subexpression. 
Added test case to exercise this fix when checking for uses of uninitialized values.

Patch by Zhongxing Xu!

llvm-svn: 51377
 2008-05-21 15:48:33 +00:00
Ted Kremenek db04a9e967 When reporting branch conditions that evaluate to an uninitialized value, 
highlight the most nested subexpression that appears most responsible (giving
the user better diagnostic feedback).

Updated test cases to illustrate this feature.

Implements: <rdar://problem/5880443>
llvm-svn: 50647
 2008-05-05 15:56:53 +00:00
Ted Kremenek 6e06f91085 Added uninitialized-values (path-sensitive) test case as a regression test 
for the fix in r50178 (http://llvm.org/viewvc/llvm-project?rev=50178&view=rev).
This fix was for <rdar://problem/5881148>.

llvm-svn: 50220
 2008-04-24 18:28:14 +00:00