[PATCH][IA64][PR35659] Fix data speculation

[Maxim Kuvyrkov]

Andrey Belevantsev wrote:
> Hello all,
> 
> sje@cup.hp.com wrote:
>> I installed all three patches on my mainline and 4.3 branch sources and
>> bootstrapped on IA64 Linux and HP-UX.  I did not see any regressions.
>> I also verified that the bug pr35659 goes away on the 4.3 branch when
>> the patches are applied.
> In addition, I've bootstrapped and tested mainline, all default 
> languages enabled, with the two control speculation patches applied and 
> control speculation turned on by default via the ia64.opt file.  I've 
> verified by hand that the resulting cc1 binary has control speculative 
> instructions.  I haven't noticed any regressions compared with the 
> recent gcc-testresults submissions, so I think control speculation 
> patches should be okay.  I will do the same today for the 4.3 branch tree.

Steve and Andrey, thank you both for testing these patches.

--
Maxim