beanz added inline comments.
================
Comment at: clang/docs/LanguageExtensions.rst:642
T __builtin_elementwise_log10(T x) return the base 10 logarithm of x
floating point types
+ T __builtin_elementwise_exp(T x) returns the base-e exponential,
or e^x, of the specified value floating point types
+ T __builtin_elementwise_exp2(T x) returns the base-2 exponential,
or 2^x, of the specified value floating point types
----------------
erichkeane wrote:
> The naming difference between these is a little clunky, but I dont use these
> enough to know if this is a common pattern. Its weird to me that _exp means
> "e^x", but _exp2 means "2^x".
Agreed that it seems odd, but in C and C++ math libraries `exp` is base-e, and
`exp2` is base-2:
https://cplusplus.com/reference/cmath/exp/
https://cplusplus.com/reference/cmath/exp2/
It is probably best to be consistent with C here even if it is unintuitive at
first glance.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D145270/new/
https://reviews.llvm.org/D145270
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