Static analyze can't report diagnose when statement after a
CXXForRangeStmt and enable widen, because
`ExprEngine::processCFGBlockEntrance` lacks of CXXForRangeStmt and when
`AMgr.options.maxBlockVisitOnPath - 1` equals to `blockCount`, it can't
widen. After next iteration, `BlockCount >=
AMgr.options.maxBlockVisitOnPath` holds and generate a sink node. Add
`CXXForRangeStmt` makes it work.
Co-authored-by: huqizhi <836744285@qq.com>
Iterator checkers (and planned container checkers) need the option
aggressive-binary-operation-simplification to be enabled. Without this
option they may cause assertions. To prevent such misuse, this patch adds
a preventive check which issues a warning and denies the registartion of
the checker if this option is disabled.
Differential Revision: https://reviews.llvm.org/D75171
In the original design of the analyzer, it was assumed that a BlockEntrance
doesn't create a new binding on the Store, but this assumption isn't true when
'widen-loops' is set to true. Fix this by finding an appropriate location
BlockEntrace program points.
Patch by Henry Wong!
Differential Revision: https://reviews.llvm.org/D37187
llvm-svn: 319333
