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14 Commits

Author SHA1 Message Date
Artem Dergachev a746f2b73c [analyzer] Fix macro names in diagnostics within bigger macros. 
If macro "CHECK_X(x)" expands to something like "if (x != NULL) ...",
the "Assuming..." note no longer says "Assuming 'x' is equal to CHECK_X".

Differential Revision: https://reviews.llvm.org/D59121

llvm-svn: 359037
 2019-04-23 21:30:30 +00:00
Csaba Dabis 9ea2f9079d [analyzer] ConditionBRVisitor: Unknown condition evaluation support 
Summary:
If the constraint information is not changed between two program states the
analyzer has not learnt new information and made no report. But it is
possible to happen because we have no information at all. The new approach
evaluates the condition to determine if that is the case and let the user
know we just `Assuming...` some value.

Reviewers: NoQ, george.karpenkov

Reviewed By: NoQ

Subscribers: llvm-commits, xazax.hun, baloghadamsoftware, szepet, a.sidorin,
mikhail.ramalho, Szelethus, donat.nagy, dkrupp, gsd, gerazo

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D57410

llvm-svn: 356323
 2019-03-16 13:47:55 +00:00
Csaba Dabis e282b30c58 Revert "[analyzer] ConditionBRVisitor: Unknown condition evaluation support" 
This reverts commit 0fe67a61cd.

llvm-svn: 356320
 2019-03-16 10:06:06 +00:00
Csaba Dabis 0fe67a61cd [analyzer] ConditionBRVisitor: Unknown condition evaluation support 
Summary: If the constraint information is not changed between two program states the analyzer has not learnt new information and made no report. But it is possible to happen because we have no information at all. The new approach evaluates the condition to determine if that is the case and let the user know we just 'Assuming...' some value.

Reviewers: NoQ, george.karpenkov

Reviewed By: NoQ

Subscribers: xazax.hun, baloghadamsoftware, szepet, a.sidorin, mikhail.ramalho, Szelethus, donat.nagy, dkrupp, gsd, gerazo

Tags: #clang

Differential Revision: https://reviews.llvm.org/D57410

llvm-svn: 356319
 2019-03-16 09:24:30 +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 40c74c6d22 [analyzer] Refer to macro names in diagnostics for macros representing a literal 
When a macro expending to a literal is used in a comparison, use the macro name
in the diagnostic rather than the literal. This improves readability of path
notes.

Added tests for various macro literals that could occur. Only BOOl, Int, and
NULL tests have changed behavior with this patch.

Differential Revision: https://reviews.llvm.org/D27726

llvm-svn: 289884
 2016-12-15 22:55:11 +00:00