[llvm-commits] Patch for X86 to use subregs

Evan Cheng evan.cheng at apple.com
Sat Jul 28 02:08:48 PDT 2007

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. Also, if it is  
possible, can you split out the x86-64 as a follow on patch?



> 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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