public inbox for
 help / color / mirror / Atom feed
From: "vries at gcc dot" <>
Subject: [Bug default/25142] New: Add optimization levels
Date: Tue, 01 Jan 2019 00:00:00 -0000	[thread overview]
Message-ID: <> (raw)

            Bug ID: 25142
           Summary: Add optimization levels
           Product: dwz
           Version: unspecified
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: default
          Assignee: nobody at sourceware dot org
          Reporter: vries at gcc dot
                CC: dwz at sourceware dot org
  Target Milestone: ---

Both for the purposes of:
- bug analysis (for the dwz developer)
- bug workaround (for the dwz user)
it would be good to be able to somehow control the optimization level.

So, it would be possible to work around bugs in -O<n> by using -O<n-1>.

A possible optimization level distribution could be:
- O1: read in and write out, no duplicate DIE elimination: 
  - rewrite .debug_abbrev sections (merging abbreviation tables for different
    CUs to eliminate duplicate table entries),
  - use minimal reference encoding (f.i., rewrite DW_FORM_ref8 into
- O2: eliminate duplicate DIEs intra-CU
- O3: eliminate duplicate DIEs inter-CU

You are receiving this mail because:
You are on the CC list for the bug.

                 reply	other threads:[~2019-10-28 14:13 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

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:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \ \ \ \

* 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).