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* [Bug default/25142] New: Add optimization levels
@ 2019-01-01  0:00 vries at gcc dot
  0 siblings, 0 replies; only message in thread
From: vries at gcc dot @ 2019-01-01  0:00 UTC (permalink / raw)
  To: dwz

            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

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2019-01-01  0:00 [Bug default/25142] New: Add optimization levels vries at gcc dot

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