[llvm] r213892 - [X86] Optimize stackmap shadows on X86.

Lang Hames lhames at gmail.com
Thu Jul 24 16:39:57 PDT 2014

Hi Joerg,

I believe there is a perfectly good reason that I didn't use the branch
relaxation code for this. I've just completely forgotten what it is. (Cards
on the table - I wrote this patch a while back and have been sitting on it
while I dealt with some other JIT bugs.)

Let me go figure it out again...


On Thu, Jul 24, 2014 at 4:33 PM, Joerg Sonnenberger <joerg at britannica.bec.de
> wrote:

> On Thu, Jul 24, 2014 at 03:49:05PM -0700, Eric Christopher wrote:
> > So you've create an EmitAndCountInstruction that you use for
> > everything except nop... since it looks like this stuff is more
> > multiplatform than just x86, why not generalize this out to the
> > AsmPrinter level (other than the fact that x86 is the only variable
> > length instruction set architecture we have?). Also, why not nop?
> In fact, we already have logic for this -- the branch relaxation code.
> Joerg
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