Andrew Turner b2e843161d Use a builtin where possible in msun ... Some of the functions in msun can be implemented using a compiler builtin function to generate a small number of instructions. Implement this support in fma, fmax, fmin, and sqrt on arm64. Care must be taken as the builtin can be implemented as a function call on some architectures that lack direct support. In these cases we need to use the original code path. As we don't set errno on failure build with -fno-math-errno so the toolchain doesn't convert a builtin into a function call when it detects a failure, e.g. gcc will add a call to sqrt when the input is negative leading to an infinite loop. Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D32801		2021-11-19 11:40:46 +00:00
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fenv.c	Add the fe* symbols to libm for arm64.	2015-03-31 19:07:28 +00:00
fenv.h	Save all fpcr/fpsr bits in the AArch64 fenv_t	2021-03-12 17:01:41 +00:00
Makefile.inc	Use a builtin where possible in msun	2021-11-19 11:40:46 +00:00