bd42582541
[analyzer] Ignore calculated indices of <= 0 in VLASizeChecker
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Summary:
See https://bugs.llvm.org/show_bug.cgi?id=46128 . The checker does not
yet comprehend constraints involving multiple symbols, so it's possible
to calculate a VLA size that's negative or 0. A LIT is added to catch
regressions, and this change simply bails if a VLA size of 0 or less is
calculated.
Reviewers: balazske, NoQ, martong, baloghadamsoftware, Szelethus, gamesh411
Reviewed By: balazske, NoQ, Szelethus
Subscribers: xazax.hun, szepet, rnkovacs, a.sidorin, mikhail.ramalho, donat.nagy, Charusso, ASDenysPetrov, cfe-commits, dkrupp
Tags: #clang
Differential Revision: https://reviews.llvm.org/D80903
2020-06-04 07:25:35 -05:00
56079e1de1
[Analyzer][VLASizeChecker] Try to fix vla.c test problems.
2020-05-19 12:12:28 +02:00
cb1eeb42c0
[Analyzer][VLASizeChecker] Check VLA size in typedef and sizeof.
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Summary:
The check of VLA size was done previously for variable declarations
(of VLA type) only. Now it is done for typedef (and type-alias)
and sizeof expressions with VLA too.
Reviewers: Szelethus, martong
Reviewed By: Szelethus, martong
Subscribers: rnkovacs, xazax.hun, baloghadamsoftware, szepet, a.sidorin, mikhail.ramalho, Szelethus, donat.nagy, dkrupp, gamesh411, Charusso, martong, ASDenysPetrov, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D79072
2020-05-14 14:30:05 +02:00
37ac1c19be
[Analyzer][VLASize] Support multi-dimensional arrays.
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Summary:
Check the size constraints for every (variable) dimension of the array.
Try to compute array size by multiplying size for every dimension.
Reviewers: Szelethus, martong, baloghadamsoftware, gamesh411
Reviewed By: Szelethus, martong
Subscribers: rnkovacs, xazax.hun, baloghadamsoftware, szepet, a.sidorin, mikhail.ramalho, Szelethus, donat.nagy, dkrupp, gamesh411, Charusso, martong, ASDenysPetrov, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D77305
2020-04-14 10:26:51 +02:00
184c6242fa
Reland 4: [analyzer] NFC: Update test infrastructure to support multiple constraint managers
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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
09d66f7528
Revert "Reland 3: [analyzer] NFC: Update test infrastructure to support multiple constraint managers"
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This reverts commit ea36f1406e1f36bf456c3f3929839b024128e468.
llvm-svn: 296841
2017-03-02 23:30:53 +00:00
feaf9ff5ee
Reland 3: [analyzer] NFC: Update test infrastructure to support multiple constraint managers
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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
4a90bf8c3f
Revert "Reland 2: [analyzer] NFC: Update test infrastructure to support multiple constraint managers"
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This reverts commit f93343c099fff646a2314cc7f4925833708298b1.
llvm-svn: 296836
2017-03-02 22:58:06 +00:00
1cb0256a3c
Reland 2: [analyzer] NFC: Update test infrastructure to support multiple constraint managers
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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
00355a51d0
Revert "Reland: [analyzer] NFC: Update test infrastructure to support multiple constraint managers"
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This reverts commit 1b28d0b10e1c8feccb971abb6ef7a18bee589830.
llvm-svn: 296422
2017-02-28 01:50:23 +00:00
59cd893320
Reland: [analyzer] NFC: Update test infrastructure to support multiple constraint managers
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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
8589e10c30
Revert "[analyzer] NFC: Update test infrastructure to support multiple constraint managers"
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This reverts commit 8e7780b9e59ddaad1800baf533058d2c064d4787.
llvm-svn: 296317
2017-02-27 03:29:25 +00:00
02064a3076
[analyzer] NFC: Update test infrastructure to support multiple constraint managers
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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
1a9c0d141c
[analyzer] Check for negative values used as the size of a C variable-length array.
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Patch by Daniel Fahlgren!
llvm-svn: 215456
2014-08-12 16:44:22 +00:00
Vince Bridgers