http://llvm.org/bugs/show_bug.cgi?id=14850
Bug #: 14850
Summary: Add static analyzer suggesting std::copysign in place
of a/fabs(a)
Product: clang
Version: 3.2
Platform: PC
OS/Version: All
Status: NEW
Severity: enhancement
Priority: P
Component: Static Analyzer
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Classification: Unclassified
In gcc one could enable the option -mrecip=div which has the side effect that
a/fabs(a)
is no longer in {+1.0, -1.0, NaN}, this leads to instabilities in case the code
uses such a construct as poor man std::copysign. It would be desiderable to
have a static analyzer which can detect those constructs and warn to use
copysign instead.
--
Configure bugmail: http://llvm.org/bugs/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.
_______________________________________________
LLVMbugs mailing list
[email protected]
http://lists.cs.uiuc.edu/mailman/listinfo/llvmbugs
