Andrew Turner b2969efae8 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 (cherry picked from commit b2e843161d)		2021-12-14 10:58:01 +00:00
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fenv.c
fenv.h
Makefile.inc	Use a builtin where possible in msun	2021-12-14 10:58:01 +00:00