[PATCH] Change default for --param allow-...-data-races to off

[Bernd Edlinger]

Hi,

from a recent discussion on g...@gcc.gnu.org I have learned that the default of
--param allow-store-data-races is still 1, and it is causing problems.
Therefore I would like to suggest to change the default of this option to 0.

Boot-strapped and regression tested on x86_64-linux-gnu.
Ok for trunk?


Thanks
Bernd.
                                          
gcc/ChangeLog:
2014-06-19  Bernd Edlinger  <bernd.edlin...@hotmail.de>

        Set default for --param allow-...-data-races to off.
        * params.def (PARAM_ALLOW_LOAD_DATA_RACES,
        PARAM_ALLOW_STORE_DATA_RACES, PARAM_ALLOW_PACKED_LOAD_DATA_RACES,
        PARAM_ALLOW_PACKED_STORE_DATA_RACES): Set default to off.

testsuite/ChangeLog:
2014-06-19  Bernd Edlinger  <bernd.edlin...@hotmail.de>

        Adjust to new default for --param allow-...-data-races.
        * c-c++-common/cxxbitfields-3.c: Adjust.
        * c-c++-common/cxxbitfields-6.c: Adjust.
        * c-c++-common/simulate-thread/bitfields-1.c: Adjust.
        * c-c++-common/simulate-thread/bitfields-2.c: Adjust.
        * c-c++-common/simulate-thread/bitfields-3.c: Adjust.
        * c-c++-common/simulate-thread/bitfields-4.c: Adjust.
        * g++.dg/simulate-thread/bitfields.C: Adjust.
        * g++.dg/simulate-thread/bitfields-2.C: Adjust.
        * gcc.dg/lto/pr52097_0.c: Adjust.
        * gcc.dg/simulate-thread/speculative-store.c: Adjust.
        * gcc.dg/simulate-thread/speculative-store-2.c: Adjust.
        * gcc.dg/simulate-thread/speculative-store-3.c: Adjust.
        * gcc.dg/simulate-thread/speculative-store-4.c: Adjust.
        * gcc.dg/simulate-thread/strict-align-global.c: Adjust.
        * gcc.dg/simulate-thread/subfields.c: Adjust.
        * gcc.dg/tree-ssa/20050314-1.c: Adjust.

patch-allow-races.diff
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