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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 |
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| .. | ||
| aarch64 | ||
| amd64 | ||
| arm | ||
| bsdsrc | ||
| i387 | ||
| ld80 | ||
| ld128 | ||
| man | ||
| mips | ||
| powerpc | ||
| riscv | ||
| src | ||
| tests | ||
| x86 | ||
| Makefile | ||
| Makefile.depend | ||
| Symbol.map | ||