On Jul 28, 2007, at 11:55 AM, Christopher Lamb wrote:
On Jul 28, 2007, at 2:08 AM, Evan Cheng wrote:

On Jul 28, 2007, at 12:17 AM, Christopher Lamb wrote:

This patch changes the X86 back end to use the new subreg operations for appropriate truncate and extend operations. This should allow regression testing of the subreg feature going forward, as it's now used in a public target.
The patch passed DejaGnu and all of SingleSource on my x86  
machine, but there are changes for x86-64 as well which I
BTW, please make sure all of MultiSource pass.
Ok.

Also, if it is possible, can you split out the x86-64 as a follow on patch?
It's a bit more work, but I think it'd be possible.
So, the truncate code is shared between x86 and x86-64 to an extent  
that I think it'd be bad to try to separate out the patches for  
those. But I can certainly separate out the patch for PsMOVZX64rr32  
on x86-64.

Evan

haven't been able to test. Output assembly for x86-64 appears sane, but I'd appreciate someone giving the patch a try on their x86-64 system. Other 32-bit x86 testing is also appreciated.
Thanks
--
Christopher Lamb

<x86_subregs.patch>


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Christopher Lamb
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Christopher Lamb



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