segfault with -O3

[Andrew Haley]

On 02/01/2011 02:40 PM, manju k wrote:

> I am getting segfault in my application if i compile it using -O3 flag ,
> removing this flag during compilation resolves the problem
>
> I am using gcc 4.1.2 on intel 64bit system.
>
> The core file does not point to anything that I suppect of in my application.
>
> How do I isolate if it is  gcc problem or my application problem ?

Is this GNU/Linux?  Run with Valgind memcheck.

If that doesn't help, check compiler warnings and use gdb.

Andrew.