https://bugs.kde.org/show_bug.cgi?id=492210
--- Comment #15 from Alexander Monakov ---
(In reply to Paul Floyd from comment #14)
> (In reply to Alexander Monakov from comment #13)
>
> > It's "long" only in the first instance, for ADDW/ADDB it's word/byte
>
https://bugs.kde.org/show_bug.cgi?id=492210
--- Comment #13 from Alexander Monakov ---
(In reply to Paul Floyd from comment #12)
> Could you see if my try branch users/paulf/try-bug492210 works OK?
I briefly tried it with a standalone test for vectorized helpers from libcpp
and the fa
https://bugs.kde.org/show_bug.cgi?id=492210
--- Comment #7 from Alexander Monakov ---
(In reply to Paul Floyd from comment #6)
> It looks like these have been added as needed, not systematically to cover
> all cases.
In GCC we cannot leave compiling-under-valgrind broken until a rele
https://bugs.kde.org/show_bug.cgi?id=492210
--- Comment #5 from Alexander Monakov ---
(In reply to Paul Floyd from comment #4)
> The patch looks ok to me. I’ll check if there should be all 4 addq addl subq
> and subl variants.
There are also CondZ and CondNZ variants.
--
You are rec
https://bugs.kde.org/show_bug.cgi?id=492210
--- Comment #3 from Alexander Monakov ---
The following patch helps. I'm quite unsure what the numbers in comments (like
"8," in the context visible here) are counting.
diff --git a/VEX/priv/guest_amd64_helpers.c b/VEX/priv/guest_amd64_
https://bugs.kde.org/show_bug.cgi?id=492210
--- Comment #2 from Alexander Monakov ---
(In reply to Paul Floyd from comment #1)
> I can reproduce similar errors on amd64.
>
> I'm not too sure what the side effects of the inline asm is.
It just pretends to modify the variable &
https://bugs.kde.org/show_bug.cgi?id=492210
Bug ID: 492210
Summary: False positive on x86 with ZF taken directly from
addition
Classification: Developer tools
Product: valgrind
Version: 3.24 GIT
Platform: Other
