https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91965
Andrew Pinski changed:
What|Removed |Added
Severity|normal |enhancement
Last reconfirmed|2019-10-0
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91965
Richard Biener changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91965
--- Comment #3 from Alexander Monakov ---
(In reply to Marc Glisse from comment #2)
> What exact transformation do you want? Canonicalize the constant C to
> something like C % (1 << (bitsize - N))?
I'm thinking (C << N) >>> N where '>>>' is sig
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91965
--- Comment #2 from Marc Glisse ---
(In reply to Alexander Monakov from comment #0)
> Do we want to handle this early on via match.pd? Perhaps also applies to
> simplifying (a +- C) << N.
What exact transformation do you want? Canonicalize the c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91965
--- Comment #1 from Alexander Monakov ---
On a related thought, I wonder if we can canonicalize (x << CST) to (x * CST')
where CST' is 1<
