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  1. Qt
  2. QTBUG-134596

Binary builds should be LTO/LTCG

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Details

    • Suggestion
    • Resolution: Unresolved
    • Not Evaluated
    • None
    • 6.10
    • Packaging & Installer
    • None

    Description

      If we want users to get the best performance, our builds should enable LTO mode (CMake option -DCMAKE_INTEPROCEDURAL_OPTIMIZATION=ON). There are more things we should do to get users the best experience possible, but this is a start.

      I've been building on Linux with LTO enabled for a couple of years now and have not had trouble.

      Having such configuration enabled would have helped catch QTBUG-133494, for example.

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          is blocked by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-134597 Delete private libs from packages

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Reported
          split from

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-134491 LIBDIR/objects-Custom directory contains .o files with LTO content

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Open
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              releaseteam Qt Release Team
              thiago Thiago Macieira
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              Dates

                Created:
                Updated:

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