https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84309
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2018-02-09
Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 43387
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43387&action=edit
gcc8-pr84309.patch
That said, if the target has c99 runtime and the constant is a power of 2, I
can't imagine why exp2 (log2 (C) * x) wouldn't be faster and more precise than
exp (log (C) * x).
