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

[Joerg Sonnenberger]

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