e79c5536b0
[analyzer] Use sufficiently large types for index bounds calculation.
...
The ProgramState::assumeInBound() API is used by checkers to make an assumption
that a certain array index is within the array's bounds (i.e. is greater than or
equal to 0 and is less than the length of the array). When the type of the
index was unspecified by the caller, it assumed that the type is 'int', which
caused some indices and sizes to truncate during calculations.
Use ArrayIndexTy by default instead, which is used by the analyzer to represent
index types and is currently hardcoded to long long.
Patch by Bevin Hansson!
Differential Revision: https://reviews.llvm.org/D46944
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@335803 91177308-0d34-0410-b5e6-96231b3b80d8
2018-06-28 00:42:11 +00:00
2cfd901321
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
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@296895 91177308-0d34-0410-b5e6-96231b3b80d8
2017-03-03 18:02:02 +00:00
9e59e2cc4c
Revert "Reland 3: [analyzer] NFC: Update test infrastructure to support multiple constraint managers"
...
This reverts commit ea36f1406ehttps://llvm.org/svn/llvm-project/cfe/trunk@296841 91177308-0d34-0410-b5e6-96231b3b80d8
2017-03-02 23:30:53 +00:00
ea36f1406e
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
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@296837 91177308-0d34-0410-b5e6-96231b3b80d8
2017-03-02 23:05:45 +00:00
87c8f41334
Revert "Reland 2: [analyzer] NFC: Update test infrastructure to support multiple constraint managers"
...
This reverts commit f93343c099https://llvm.org/svn/llvm-project/cfe/trunk@296836 91177308-0d34-0410-b5e6-96231b3b80d8
2017-03-02 22:58:06 +00:00
f93343c099
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
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@296835 91177308-0d34-0410-b5e6-96231b3b80d8
2017-03-02 22:45:24 +00:00
55aef8b0cd
Revert "Reland: [analyzer] NFC: Update test infrastructure to support multiple constraint managers"
...
This reverts commit 1b28d0b10ehttps://llvm.org/svn/llvm-project/cfe/trunk@296422 91177308-0d34-0410-b5e6-96231b3b80d8
2017-02-28 01:50:23 +00:00
1b28d0b10e
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
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@296414 91177308-0d34-0410-b5e6-96231b3b80d8
2017-02-28 00:02:36 +00:00
eb259b6acb
Revert "[analyzer] NFC: Update test infrastructure to support multiple constraint managers"
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This reverts commit 8e7780b9e5https://llvm.org/svn/llvm-project/cfe/trunk@296317 91177308-0d34-0410-b5e6-96231b3b80d8
2017-02-27 03:29:25 +00:00
8e7780b9e5
[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
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@296312 91177308-0d34-0410-b5e6-96231b3b80d8
2017-02-27 02:36:15 +00:00
390547e298
[analyzer] Use a wider integer type for an array index.
...
Avoids unexpected overflows while performing pointer arithmetics in 64-bit code.
Moreover, neither PointerDiffType nor 'int' can be used as a common array index
type because arrays may have size (and indexes) more than PTRDIFF_MAX but less
than SIZE_MAX.
Patch by Aleksei Sidorin!
Differential Revision: http://reviews.llvm.org/D16063
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@259345 91177308-0d34-0410-b5e6-96231b3b80d8
2016-02-01 09:29:17 +00:00
Artem Dergachev