Here's my stacktrace (finally had some time to do a rebuild) #0 QString::QString (this=0x23dda0, other=...) at ../../../include/QtCore/../../../../qt5/qtbase/src/corelib/tools/qstring.h:958 #1 QLinkedListNode<QString>::QLinkedListNode (this=0x23dd90, arg=...) at ../../../include/QtCore/../../../../qt5/qtbase/src/corelib/tools/qlinkedlist.h:71 #2 QLinkedList<QString>::detach_helper2 (this=0x7fffffffdad8, orgite=...) at ../../../include/QtCore/../../../../qt5/qtbase/src/corelib/tools/qlinkedlist.h:303 #3 0x00000000002153ad in QLinkedList<QString>::detach (this=0x23dd90) at ../../../include/QtCore/../../../../qt5/qtbase/src/corelib/tools/qlinkedlist.h:106 #4 QLinkedList<QString>::end (this=0x23dd90) at ../../../include/QtCore/../../../../qt5/qtbase/src/corelib/tools/qlinkedlist.h:209 #5 Grammar::Grammar (this=<optimized out>) at /opt/build-sdk/qt5/qtbase/src/tools/qlalr/lalr.cpp:188 #6 main (argc=4, argv=<optimized out>) at /opt/build-sdk/qt5/qtbase/src/tools/qlalr/main.cpp:103
I've only glanced quickly (read, less than 15 seconds) at the code but I don't understand how it can work in any reasonable fashion: it seems that it tries to construct a string (`QString Grammar::start` ) with the `end()` of a container in lalr.cpp:188. But since it works in so many other configurations I must be missing something somewhere. Best, ------- Jean-Michaël Celerier http://www.jcelerier.name On Fri, Nov 9, 2018 at 10:01 AM René J. V. Bertin <[email protected]> wrote: > Sérgio Martins wrote: > > > FWIW, I just tried -flto with clang-7.0 and gold-1.16 and can't > > reproduce QTBUG-43556 anymore. > > Good to know, I use the "regular" ld v2.3.0 (~gold for other reasons I > cannot > really remember). > > In the FWIW register: does clang 7 continue the trend of being noticeably > slower > that its predecessor (about 15% for clang 6)? > > R. > > _______________________________________________ > Interest mailing list > [email protected] > http://lists.qt-project.org/mailman/listinfo/interest >
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