[PATCH] [AArch64] ILP32 math changes

[Szabolcs Nagy]

On 29/08/17 22:16, Steve Ellcey wrote:
> Since Szabolcs has expressed interest in getting some aarch64 ILP32
> changes into glibc mainline (if they don't affect the kernel or glibc
> ABI) I am resubmitting this patch for approval in advance of the main
> ILP32 support patches.  I updated it with Richard Henderson's code (but
> only doing it when the incoming argument is large).  I tested it on
> aarch64 ILP32 and LP64 with no regressions.
> 
> Is this something that can be checked in now withnout waiting for the
> kernel ILP32 support?
> 

OK.

(we plan to change the math functions to use gcc builtins
in some places instead of asm which will simplify things,
but that can go in later on top of this.)

> Steve Ellcey
> sellcey@cavium.com
> 
> 
> 2017-08-29  Steve Ellcey  <sellcey@cavium.com>
> 	    Richard Henderson <rth@twiddle.net>
> 
> 	* sysdeps/aarch64/fpu/s_llrint.c (OREG_SIZE): New macro.
> 	* sysdeps/aarch64/fpu/s_llround.c (OREG_SIZE): Likewise.
> 	* sysdeps/aarch64/fpu/s_llrintf.c (OREGS, IREGS): Remove.
> 	(IREG_SIZE, OREG_SIZE): New macros.
> 	* sysdeps/aarch64/fpu/s_llroundf.c: (OREGS, IREGS): Remove.
> 	(IREG_SIZE, OREG_SIZE): New macros.
> 	* sysdeps/aarch64/fpu/s_lrintf.c (IREGS): Remove.
> 	(IREG_SIZE): New macro.
> 	* sysdeps/aarch64/fpu/s_lroundf.c (IREGS): Remove.
> 	(IREG_SIZE): New macro.
> 	* sysdeps/aarch64/fpu/s_lrint.c (get-rounding-mode.h, stdint.h):
> 	New includes.
> 	(IREG_SIZE, OREG_SIZE): Initialize if not already set.
> 	(OREGS, IREGS): Set based on IREG_SIZE and OREG_SIZE.
> 	(__CONCATX): Handle exceptions correctly on large values that may
> 	set FE_INVALID.
> 	* sysdeps/aarch64/fpu/s_lround.c (IREG_SIZE, OREG_SIZE):
> 	Initialize if not already set.
>         (OREGS, IREGS): Set based on IREG_SIZE and OREG_SIZE.
>