[Bug c++/61863] New: Data corruption when creating temporary object

[mehta at roguewave dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61863

            Bug ID: 61863
           Summary: Data corruption when creating temporary object
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: mehta at roguewave dot com

Created attachment 33163
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33163&action=edit
ustrTst.cpp, MyUStr.h

Hi,

We are seeing data corruption with gcc 4.8. This problem happens when
optimization is 03 or greater. It appears to occur when a temporary object is
created using move constructor. Also, this problem doesn't happen with gcc 4.9.

Compile and Link Line:

ulimit -St 600 && g++ -m64  -msse3 -O3 -pthread --pedantic -Wall -W
-Wno-long-long -std=gnu++11 -I. -c ustrTst.cpp
ulimit -St 600 && g++ -m64  -pthread -o ustrTst    ustrTst.o -lm -ldl

I have attached the test case.


Thanks,
Vikas