[PATCH 1/4 v2] Optimized generic expf and exp2f with wrappers

[Szabolcs Nagy]

On 13/09/17 21:13, Joseph Myers wrote:
> On Wed, 13 Sep 2017, Szabolcs Nagy wrote:
> 
>> - disable math_errf.c and e_exp2f_data.c on i386 and ia64.
> 
> sysdeps/m68k/m680x0/fpu has its own e_expf.c and e_exp2f.c, I would expect 
> those new files to be disabled there as well.
> 

yes i made a number of mistakes:
- m68k/m680x0/fpu does not need the math_errf/e_exp2f_data code
- powerpc64/fpu/multiarch/e_expf-ppc64.c needs to suppress
libm_hidden_proto too now that it overrides __expf
(otherwise there is a hidden proto of __ieee754_expf_ppc64)
- sysdeps/*/w_expf.c does not work to include srcdir/math/w_expf.c
because the generated builddir/math/w_expf.c gets included.
(i'm not yet sure what the right fix for this is, i can just
copy the math/w_expf.c code around instead of including it
or use a file name that does not collide with the generated files)
- the new versioned symbols are missing on ia64 too because
it uses its own w_expf wrappers.

i'm trying to fix these.