[LLVMdev] Bogus X86-64 Patterns

Evan Cheng evan.cheng at apple.com
Mon Dec 17 10:55:31 PST 2007

On Dec 17, 2007, at 10:04 AM, David Greene wrote:

> On Friday 14 December 2007 13:55, Evan Cheng wrote:
>> Actually, movq is recognized by the assembler on Leopard. I've fixed
>> this:
>> http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-
>> Mon-20071210/056334.html
>> Please verify. Thanks.
> The patch is similar to what I did.  I'll have to create an llvm  
> testcase to
> verify it as this is a Fortran code.  It would also be good to have a
> regression test for this anyway.
> Does the Leopard assembler support movq for rr instructions?  The
> rep64 movd sequence is ugly and esoteric.  It's much more readable
> to say movq.

I agree. But unfortunately the assembler still does not recognize movq  
for rr instructions. If this really bug you I'd suggest adding a  
comment to the emitted assembly string.


>                                           -Dave
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