On Thu, 12 Jun 2014 10:50:29, Eric Botcazou wrote:
>
>> Btw I am not sure at all, why argp-references can never be dangerous?
>> For instance in a struct with an array inside, passed as function argument?
>
> IMO there cannot be any definitive solution to this issue until after we move
> all the affected optimizations from RTL to GIMPLE. In the meantime, the
> failure mode is not catastrophic (100% reproducible segfault) and there is
> always an easy workaround (generally a -fno-* switch).
>
> --
> Eric Botcazou
not really 100% reproducable. As a little surprise, the test case from the
tracker
did _not_ crash when I initially put it in the testsuite.
Reason, probably, the stack layout in the test suite is a little different,
because the LD_LIBRARY_PATH environment variable is sooo long,
and all environment variables, and arguments are at the top of the stack.
The test did only produce the crash as expected when I changed this
if (b == 2837)
a = e[b];
into that:
if (b == 28378)
a = e[b];
Bernd.
