http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45375
Martin Liška <marxin.liska at gmail dot com> changed:
What |Removed |Added
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CC| |marxin.liska at gmail dot com
--- Comment #189 from Martin Liška <marxin.liska at gmail dot com> ---
I've encountered problems connected with PGO:
gcc revision: 201894
firefox changeset: 143205:1d6bf2bd4003 (Aug 20, 2013)
I build instrumented binary without LTO and after that I use the profile for
LTO:
MYFLAGS="-flto=9 -fno-fat-lto-objects -ftoplevel-reorder -fprofile-use
-Wno-error=coverage-mismatch"
I know that there are gcda files that are mentioned in this thread and were
removed by me:
jemalloc.gcda (makes sense)
ptsynch.gcda (likewise)
HashFunctions.gcda (?)
sqlite3.gcda (?)
After linking of sqlite3, there are many corrupted profiles like:
/ssd/firefox/js/src/gc/Marking.cpp
/ssd/firefox/js/src/frontend/BytecodeEmitter.cpp
/ssd/firefox/js/src/frontend/Interpreter.cpp
...
Example of an error:
/ssd/firefox/js/src/gc/Marking.cpp: In function
‘js::gc::IsAboutToBeFinalized<JSAtom>(JSAtom**)bool [clone .isra.65]’:
/ssd/firefox/js/src/gc/Marking.cpp:1713:1: error: corrupted profile info:
profile data is not flow-consistent
}
^
/ssd/firefox/js/src/gc/Marking.cpp:1713:1: error: corrupted profile info:
number of executions for edge 3-6 thought to be -81
/ssd/firefox/js/src/gc/Marking.cpp:1713:1: error: corrupted profile info:
number of executions for edge 3-4 thought to be 39667
/ssd/firefox/js/src/gc/Marking.cpp: In function
‘js::gc::IsAboutToBeFinalized<js::UnownedBaseShape>(js::UnownedBaseShape**)bool
[clone .isra.52]’:
/ssd/firefox/js/src/gc/Marking.cpp:1713:1: error: corrupted profile info:
profile data is not flow-consistent
/ssd/firefox/js/src/gc/Marking.cpp:1713:1: error: corrupted profile info:
number of executions for edge 3-6 thought to be -1
/ssd/firefox/js/src/gc/Marking.cpp:1713:1: error: corrupted profile info:
number of executions for edge 3-4 thought to be 41156
/ssd/firefox/js/src/gc/Marking.cpp: In function
‘MarkInternal<JSAtom>(JSTracer*, JSAtom**)void’:
/ssd/firefox/js/src/gc/Marking.cpp:1713:1: error: corrupted profile info:
profile data is not flow-consistent
/ssd/firefox/js/src/gc/Marking.cpp:1713:1: error: corrupted profile info:
number of executions for edge 9-14 thought to be -39
/ssd/firefox/js/src/gc/Marking.cpp:1713:1: error: corrupted profile info:
number of executions for edge 9-10 thought to be 180119
/ssd/firefox/js/src/gc/Marking.cpp: In function
‘MarkInternal<JSObject>(JSTracer*, JSObject**)void’:
/ssd/firefox/js/src/gc/Marking.cpp:1713:1: error: corrupted profile info:
profile data is not flow-consistent
/ssd/firefox/js/src/gc/Marking.cpp:1713:1: error: corrupted profile info:
number of executions for edge 11-18 thought to be -1
/ssd/firefox/js/src/gc/Marking.cpp:1713:1: error: corrupted profile info:
number of executions for edge 11-12 thought to be 49007
/ssd/firefox/js/src/gc/Marking.cpp: In member function ‘js::MarkStack<unsigned
long>::push(unsigned long)’:
/ssd/firefox/js/src/gc/Marking.cpp:1713:1: error: corrupted profile info:
profile data is not flow-consistent
/ssd/firefox/js/src/gc/Marking.cpp:1713:1: error: corrupted profile info:
number of executions for edge 4-6 thought to be -1
/ssd/firefox/js/src/gc/Marking.cpp:1713:1: error: corrupted profile info:
number of executions for edge 4-5 thought to be 1
/ssd/firefox/js/src/gc/Marking.cpp: In member function
‘js::GCMarker::drainMarkStack(js::SliceBudget&)’:
/ssd/firefox/js/src/gc/Marking.cpp:1713:1: error: corrupted profile info:
profile data is not flow-consistent
/ssd/firefox/js/src/gc/Marking.cpp:1713:1: error: corrupted profile info:
number of executions for edge 3-4 thought to be -7
/ssd/firefox/js/src/gc/Marking.cpp:1713:1: error: corrupted profile info:
number of executions for edge 3-1 thought to be 7
/ssd/firefox/js/src/gc/Marking.cpp: In member function
‘js::ObjectImpl::slotSpan() const’:
/ssd/firefox/js/src/gc/Marking.cpp:1713:1: error: corrupted profile info:
profile data is not flow-consistent
/ssd/firefox/js/src/gc/Marking.cpp:1713:1: error: corrupted profile info:
number of executions for edge 5-7 thought to be -1
/ssd/firefox/js/src/gc/Marking.cpp:1713:1: error: corrupted profile info:
number of executions for edge 5-6 thought to be 15965
Thank you,
Martin
