* [Qemu-devel] Qemu ARM tcg problem
@ 2009-09-25 14:26 Gary Thomas
2009-09-25 14:50 ` [Qemu-devel] " Laurent Desnogues
0 siblings, 1 reply; 2+ messages in thread
From: Gary Thomas @ 2009-09-25 14:26 UTC (permalink / raw)
To: Laurent Desnogues; +Cc: Qemu Development
Laurent,
If I build with --enable-debug, I get an assertion on this line
tcg/tcg.c: 983 assert(oarg < def->nb_oargs);
This happens because of this definition
tcg/arm/tcg-target.c: 1593 { INDEX_op_div2_i32, { "r", "r", "r", "1", "2" } },
I'm not sure I totally understand these tables, but the assertion
says that they may not be correct.
Any clues??
--
------------------------------------------------------------
Gary Thomas | Consulting for the
MLB Associates | Embedded world
------------------------------------------------------------
^ permalink raw reply [flat|nested] 2+ messages in thread* [Qemu-devel] Re: Qemu ARM tcg problem
2009-09-25 14:26 [Qemu-devel] Qemu ARM tcg problem Gary Thomas
@ 2009-09-25 14:50 ` Laurent Desnogues
0 siblings, 0 replies; 2+ messages in thread
From: Laurent Desnogues @ 2009-09-25 14:50 UTC (permalink / raw)
To: Gary Thomas; +Cc: Qemu Development
On Fri, Sep 25, 2009 at 4:26 PM, Gary Thomas <gary@mlbassoc.com> wrote:
> Laurent,
>
> If I build with --enable-debug, I get an assertion on this line
> tcg/tcg.c: 983 assert(oarg < def->nb_oargs);
>
> This happens because of this definition
> tcg/arm/tcg-target.c: 1593 { INDEX_op_div2_i32, { "r", "r", "r", "1",
> "2" } },
>
> I'm not sure I totally understand these tables, but the assertion
> says that they may not be correct.
>
> Any clues??
This is buggy for sure. Anyway given the associated generated
code also is buggy, my only advice for your needs is to remove
op_div2 and op_divu2 from arm_op_defs. For you that'll be OK
since the i386 front-end doesn't generated these ops.
For the real fix, we'll see if anyone ever really needs it :-)
Laurent
^ permalink raw reply [flat|nested] 2+ messages in thread
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2009-09-25 14:26 [Qemu-devel] Qemu ARM tcg problem Gary Thomas
2009-09-25 14:50 ` [Qemu-devel] " Laurent Desnogues
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