From: Aldy Hernandez <aldyh@redhat.com>
To: Richard Biener <rguenther@suse.de>
Cc: gcc-patches <gcc-patches@gcc.gnu.org>,
"MacLeod, Andrew" <amacleod@redhat.com>
Subject: Re: [PATCH] Tame path_range_query::compute_imports
Date: Tue, 16 Aug 2022 11:08:35 +0200 [thread overview]
Message-ID: <CAGm3qMUW7cg4SjbVhnR9FBXM+wukjKdZ7ntcQFUyaqFLJx0QfQ@mail.gmail.com> (raw)
In-Reply-To: <nycvar.YFH.7.77.849.2208160829030.13569@jbgna.fhfr.qr>
On Tue, Aug 16, 2022 at 10:32 AM Richard Biener <rguenther@suse.de> wrote:
>
> On Tue, 16 Aug 2022, Aldy Hernandez wrote:
>
> > On Thu, Aug 11, 2022 at 1:42 PM Richard Biener <rguenther@suse.de> wrote:
> >
> > > @@ -599,6 +592,30 @@ path_range_query::compute_imports (bitmap imports, const vec<basic_block> &path)
> > > worklist.safe_push (arg);
> > > }
> > > }
> > > + else if (gassign *ass = dyn_cast <gassign *> (def_stmt))
> > > + {
> > > + tree ssa[3];
> > > + if (range_op_handler (ass))
> > > + {
> > > + ssa[0] = gimple_range_ssa_p (gimple_range_operand1 (ass));
> > > + ssa[1] = gimple_range_ssa_p (gimple_range_operand2 (ass));
> > > + ssa[2] = NULL_TREE;
> > > + }
> > > + else if (gimple_assign_rhs_code (ass) == COND_EXPR)
> > > + {
> > > + ssa[0] = gimple_range_ssa_p (gimple_assign_rhs1 (ass));
> > > + ssa[1] = gimple_range_ssa_p (gimple_assign_rhs2 (ass));
> > > + ssa[2] = gimple_range_ssa_p (gimple_assign_rhs3 (ass));
> > > + }
> > > + else
> > > + continue;
> > > + for (unsigned j = 0; j < 3; ++j)
> > > + {
> > > + tree rhs = ssa[j];
> > > + if (rhs && add_to_imports (rhs, imports))
> > > + worklist.safe_push (rhs);
> > > + }
> > > + }
> >
> > We seem to have 3 copies of this copy now: this one, the
> > threadbackward one, and the original one.
> >
> > Could we abstract this somehow?
>
> I've thought about this but didn't find any good solution since the
> use of the operands is always a bit different. But I was wondering
> why/if the COND_EXPR special-casing is necessary, that is, why
> don't we have a range_op_handler for it and if we don't why
> do we care about it?
I think it's because we don't have a range-op handler for COND_EXPR,
opting to handle the relational operators instead in range-ops. We
have similar code in the folder:
if (range_op_handler (s))
res = range_of_range_op (r, s, src);
else if (is_a<gphi *>(s))
res = range_of_phi (r, as_a<gphi *> (s), src);
else if (is_a<gcall *>(s))
res = range_of_call (r, as_a<gcall *> (s), src);
else if (is_a<gassign *> (s) && gimple_assign_rhs_code (s) == COND_EXPR)
res = range_of_cond_expr (r, as_a<gassign *> (s), src);
Andrew, do you have any suggestions here?
Aldy
next prev parent reply other threads:[~2022-08-16 9:08 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <73820.122081107421800679@us-mta-533.us.mimecast.lan>
2022-08-11 13:11 ` Aldy Hernandez
2022-08-11 13:59 ` Andrew MacLeod
2022-08-11 15:11 ` Aldy Hernandez
2022-08-15 9:53 ` Richard Biener
2022-08-16 8:56 ` Aldy Hernandez
2022-08-16 9:28 ` Richard Biener
2022-08-16 10:25 ` Aldy Hernandez
2022-08-16 11:38 ` Richard Biener
2022-08-16 12:17 ` Aldy Hernandez
2022-08-16 12:26 ` Richard Biener
2022-08-16 12:32 ` Aldy Hernandez
2022-08-16 13:47 ` Andrew MacLeod
2022-08-16 13:55 ` Aldy Hernandez
2022-08-16 8:21 ` Aldy Hernandez
2022-08-16 8:32 ` Richard Biener
2022-08-16 9:08 ` Aldy Hernandez [this message]
2022-08-16 9:15 ` Aldy Hernandez
2022-08-16 9:28 ` Richard Biener
2022-08-16 13:42 ` Andrew MacLeod
2022-08-17 1:16 ` [COMMITTED] Abstract interesting ssa-names from GORI Andrew MacLeod
2022-08-17 1:18 ` Andrew MacLeod
2022-08-18 7:26 ` Aldy Hernandez
2022-08-11 11:42 [PATCH] Tame path_range_query::compute_imports Richard Biener
-- strict thread matches above, loose matches on Subject: below --
2022-08-11 11:42 Richard Biener
2022-08-11 11:42 Richard Biener
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CAGm3qMUW7cg4SjbVhnR9FBXM+wukjKdZ7ntcQFUyaqFLJx0QfQ@mail.gmail.com \
--to=aldyh@redhat.com \
--cc=amacleod@redhat.com \
--cc=gcc-patches@gcc.gnu.org \
--cc=rguenther@suse.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).