[valgrind] [Bug 355231] Unhandled Instruction Bytes (vmovdqu, "0xC5 0xFA 0x6F 0x2")

2016-09-19 Thread Jeffrey Walton via KDE Bugzilla
https://bugs.kde.org/show_bug.cgi?id=355231

--- Comment #4 from Jeffrey Walton  ---
(In reply to Julian Seward from comment #3)
> I think we might be talking at cross purposes.  Sure, the silicon supports
> VMOVDQU
> (and other AVX insns) in both 32- and 64-bit modes.  What I meant is,
> Valgrind
> doesn't; 32-bit support doesn't extend beyond SSSE3.  If you want to run AVX
> code
> on Valgrind then you need to do it in a 64-bit process.

Oh, my bad. Yes, I was disconnected. Sorry about that.

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[valgrind] [Bug 355231] Unhandled Instruction Bytes (vmovdqu, "0xC5 0xFA 0x6F 0x2")

2016-09-19 Thread Julian Seward via KDE Bugzilla
https://bugs.kde.org/show_bug.cgi?id=355231

--- Comment #3 from Julian Seward  ---
I think we might be talking at cross purposes.  Sure, the silicon supports
VMOVDQU
(and other AVX insns) in both 32- and 64-bit modes.  What I meant is, Valgrind
doesn't; 32-bit support doesn't extend beyond SSSE3.  If you want to run AVX
code
on Valgrind then you need to do it in a 64-bit process.

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[valgrind] [Bug 355231] Unhandled Instruction Bytes (vmovdqu, "0xC5 0xFA 0x6F 0x2")

2016-09-19 Thread Jeffrey Walton via KDE Bugzilla
https://bugs.kde.org/show_bug.cgi?id=355231

--- Comment #2 from Jeffrey Walton  ---
(In reply to Julian Seward from comment #1)
> That's an AVX instruction, which isn't supported by the x86 (32-bit) front
> end.
> x86 (32-bit) only supports up to SSSE3.  I suggest you move to 64-bit x86
> instead,
> which supports up to and including AVX2.

Something sounds amiss. We test under both i686 and x86_64. If vmovdqu is
x86_64, then it seems like the test program should SIGILL rather than complete
successfully.

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[valgrind] [Bug 355231] Unhandled Instruction Bytes (vmovdqu, "0xC5 0xFA 0x6F 0x2")

2016-09-19 Thread Julian Seward via KDE Bugzilla
https://bugs.kde.org/show_bug.cgi?id=355231

Julian Seward  changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |WONTFIX

--- Comment #1 from Julian Seward  ---
That's an AVX instruction, which isn't supported by the x86 (32-bit) front end.
x86 (32-bit) only supports up to SSSE3.  I suggest you move to 64-bit x86
instead,
which supports up to and including AVX2.

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