https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96921
Andrew Pinski changed:
What|Removed |Added
Status|ASSIGNED|RESOLVED
Target Milestone|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96921
--- Comment #10 from CVS Commits ---
The trunk branch has been updated by Andrew Pinski :
https://gcc.gnu.org/g:a42ed1d9181d21d5cb02f131f641c0cf375eca9d
commit r13-5988-ga42ed1d9181d21d5cb02f131f641c0cf375eca9d
Author: Andrew Pinski
Date:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96921
--- Comment #9 from Andrew Pinski ---
(In reply to Andrew Pinski from comment #3)
> So something like:
> (simplify
> (minus integer_one@0 SSA_NAME@1)
> (if (TREE_CODE (@0) == SSA_NAME
> && ssa_name_has_boolean_range (@0))
> (bit_xor @1
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96921
--- Comment #8 from Andrew Pinski ---
(In reply to Andrew Pinski from comment #7)
> (In reply to Andrew Pinski from comment #4)
> > Hmm, thinking about expanding this further:
>
> I am going to handle the non-special (bool) case as PR 101610.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96921
--- Comment #7 from Andrew Pinski ---
(In reply to Andrew Pinski from comment #4)
> Hmm, thinking about expanding this further:
I am going to handle the non-special (bool) case as PR 101610.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96921
--- Comment #6 from Andrew Pinski ---
The final conversion should happen at the RTL level (or during expansion).
simplify-rtx.c has this:
/* If STORE_FLAG_VALUE is 1, (minus 1 (comparison foo bar)) can be done
by reversing the
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96921
--- Comment #5 from Andrew Pinski ---
(In reply to Andrew Pinski from comment #4)
> Hmm, thinking about expanding this further:
Even further.
int f1(int n)
{
if (n&~8) __builtin_unreachable();
return 63 - n;
}
CUT
So the
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96921
--- Comment #4 from Andrew Pinski ---
Hmm, thinking about expanding this further:
int f1(int n)
{
if (n&~63) __builtin_unreachable();
return 63 - n;
}
int f2(int n)
{
if (n&~63) __builtin_unreachable();
return 63 ^ n;
}
These
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96921
Andrew Pinski changed:
What|Removed |Added
Status|NEW |ASSIGNED
Assignee|unassigned
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96921
Andrew Pinski changed:
What|Removed |Added
Severity|normal |enhancement
Ever confirmed|0
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96921
Jakub Jelinek changed:
What|Removed |Added
CC||jakub at gcc dot gnu.org
--- Comment #1
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