c0402c6916
Revert "[analyzer] Support generating and reasoning over more symbolic constraint types"
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Assertion `Loc::isLocType(SSE->getLHS()->getType())' failed in Analysis/PR3991.m
This reverts commit e469ff2759275e67f9072b3d67fac90f647c0fe6.
llvm-svn: 307853
2017-07-12 21:43:42 +00:00
35610d21b2
[analyzer] Support generating and reasoning over more symbolic constraint types
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Summary: Generate more IntSymExpr constraints, perform SVal simplification for IntSymExpr and SymbolCast constraints, and create fully symbolic SymExprs
Reviewers: zaks.anna, dcoughlin, NoQ, xazax.hun
Subscribers: mgorny, cfe-commits
Differential Revision: https://reviews.llvm.org/D28953
llvm-svn: 307833
2017-07-12 19:37:57 +00:00
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
91c45e8f46
[analyzer] Fix an off-by-one in evalIntegralCast()
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Make sure that we do not add SymbolCast at the very boundary of
the range in which the cast would not certainly happen.
Differential Revision: http://reviews.llvm.org/D16178
llvm-svn: 258039
2016-01-18 10:17:16 +00:00
dc16628c93
Re-apply "[analyzer] Model casts to bool differently from other numbers."
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This doesn't appear to be the cause of the slowdown. I'll have to try a
manual bisect to see if there's really anything there, or if it's just
the bot itself taking on additional load. Meanwhile, this change helps
with correctness.
This changes an assertion and adds a test case, then re-applies r180638,
which was reverted in r180714.
<rdar://problem/13296133> and PR15863
llvm-svn: 180864
2013-05-01 18:19:59 +00:00
49f888bbab
Revert "[analyzer] Model casts to bool differently from other numbers."
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This seems to be causing quite a slowdown on our internal analyzer bot,
and I'm not sure why. Needs further investigation.
This reverts r180638 / 9e161ea981f22ae017b6af09d660bfc3ddf16a09.
llvm-svn: 180714
2013-04-29 17:23:03 +00:00
9661c1d18a
[analyzer] Model casts to bool differently from other numbers.
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Casts to bool (and _Bool) are equivalent to checks against zero,
not truncations to 1 bit or 8 bits.
This improved reasoning does cause a change in the behavior of the alpha
BoolAssignment checker. Previously, this checker complained about statements
like "bool x = y" if 'y' was known not to be 0 or 1. Now it does not, since
that conversion is well-defined. It's hard to say what the "best" behavior
here is: this conversion is safe, but might be better written as an explicit
comparison against zero.
More usefully, besides improving our model of booleans, this fixes spurious
warnings when returning the address of a local variable cast to bool.
<rdar://problem/13296133>
llvm-svn: 180638
2013-04-26 21:42:55 +00:00
0541159d68
[analyzer] Consolidate BoolAssignmentChecker tests by using two RUN lines.
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llvm-svn: 180637
2013-04-26 21:42:47 +00:00
Dominic Chen