[PATCH 0/3] PowerPC: remove wrong ceill implementation for PowerPC64

[Adhemerval Zanella]

On 14-03-2014 10:51, Adhemerval Zanella wrote:
> The ceill assembly implementation (sysdeps/powerpc/powerpc64/fpu/s_ceill.S)
> returns wrong results for some inputs where first double is a exact
> integer and the precision is determined by second long double.
>
> Checking on implementation comments and history, I am very confident the
> assembly implementation was based on a version before commit
> 5c68d401698a58cf7da150d9cce769fa6679ba5f that fixes BZ#2423 (Errors in
> long double (ldbl-128ibm) rounding functions in glibc-2.4).
>
> By just removing the implementation and make the build select
> sysdeps/ieee754/ldbl-128ibm/s_ceill.c instead fixes the failing math.
>
> Fixes BZ#16701.
>
> Test on PPC64 and PPC64LE. If no one opposes it, I'll commit in a couple
> or hours.
>
> --
>
> 2014-03-14  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>
>
> 	[BZ #16701]
> 	* sysdeps/powerpc/powerpc64/fpu/s_ceill.S: Remove wrong
> 	implementation.
> 	* math/libm-test.inc (ceil_test_data): Add more tests.
>
Pushed as 374f7f61214967bb4e2257695aeeeecc2a77f369 with the LDBL_MANT_DIG guards.