[PATCH 3/4] Add ILP32 support to aarch64

[Steve Ellcey]

Here are some fixes to the floating point to integer conversion
routines for aarch64.

Steve Ellcey
sellcey@cavium.com

2017-08-03  Steve Ellcey  <sellcey@cavium.com>

	* sysdeps/aarch64/fpu/math_private.h (libc_feclearexcept_aarch64):
	New function.
	(libc_feclearexcept, libc_feclearexceptf, libc_feclearexceptl):
	New defines.
	* 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 (math_private.h): New include.
	(IREG_SIZE, OREG_SIZE): Initialize if not already set.
	(OREGS, IREGS): Set based on IREG_SIZE and OREG_SIZE.
	(__CONCATX): Clear INEXACT if INVALID is set.
	* 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.
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