[Bug c++/39623] New: Optimizer changes return from htons(uint16)

[strk at keybit dot net]

The bug is known to occur with the following versions:
 - gcc version 4.3.2 20081105 (Red Hat 4.3.2-7) (GCC)
 - g++ (Ubuntu 4.3.2-2ubuntu11) 4.3.3 20090111 (prerelease) 

The symptom of the bug is that when you use -O2 htons(short) returns
'unsigned int' (32 bit) rather then the expected 16bit value.
With no optimization it returns the correct 16bit.

I'll attach a testcase.


-- 
           Summary: Optimizer changes return from htons(uint16)
           Product: gcc
           Version: 4.3.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: strk at keybit dot net


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39623