eon performance regression

[Jason Merrill]

>>>>> "Jan" == Jan Hubicka <jh@suse.cz> writes:

>> Any more word on this?  Is the regression still present?  Have you tested
>> to see whether or not it was due to my patch?

> Andreas had benchmarked reverting your calls.c patch and it causes about 10
> points regression on eon. Interestingly enought there is also some speedup
> in crafty.  Can that be caused by your patch?

Not if it's written in C.  C never uses TARGET_EXPR.

> Base Compiler: GCC CVS
> Peak Compiler: GCC CVS with patch for calls.c

I assume that "patch for calls.c" means the patch to revert my change.

>                                      Estimated                     Estimated
>                    Base      Base      Base      Peak      Peak      Peak
>    Benchmarks    Ref Time  Run Time   Ratio    Ref Time  Run Time   Ratio
>    ------------  --------  --------  --------  --------  --------  --------
>    252.eon           1300       217       600      1300       213       611 
>    252.eon           1300       216       601*     1300       212       612 
>    252.eon           1300       216       601      1300       213       611*

OK, that seems pretty conclusive, thanks.  Unfortunately, my patch is
necessary for correctness, so we can't just revert it.  I wonder if the
slowdown is simply due to code expansion, or what.

Jason