[llvm-commits] [llvm] r77940 - in /llvm/trunk: lib/Target/X86/X86ISelLowering.cpp lib/Target/X86/X86InstrMMX.td test/CodeGen/X86/2009-08-02-mmx-scalar-to-vector.ll test/CodeGen/X86/mmx-bitcast-to-i64.ll

[Eli Friedman]

On Sun, Aug 2, 2009 at 8:33 PM, Rafael Espindola<espindola at google.com> wrote:
>> I don't see any connection between the way it's written and for the
>> assembler and the way the JIT deals with it.  And you still haven't
>> addressed the issue, which is that I'm pretty sure it was done for
>> compatibility reasons.  If you don't know anything about that, I would
>> suggest switching it back to movd.
>
> Do you know what we are trying to be compatible with?

I looked it up; we are trying to be compatible with OS X.  See
http://lists.cs.uiuc.edu/pipermail/llvmdev/2007-December/011849.html .

-Eli