[PATCH] D20162: [MSP430] PR27500 CodeGen: Rework branch-select pass

[Vadzim Dambrouski via llvm-commits]

ping

On Sat, Jun 11, 2016 at 6:08 PM, Vadzim Dambrouski <pftbest at gmail.com> wrote:
> pftbest added a comment.
>
> My thoughts on block renumbering:
>
> 1. It happens only once per function in common case
> 2. In a rare case when we need some branches to be expanded, block offsets are updated manually in the loop, so blocks are not renumbered
> 3. In extremely rare case when both successors are out of range, only then blocks are renumbered and remeasured.
>
> So the point is:
>
> 1. This code is not slower than what is now in the trunk
> 2. But it is definitely better, because it does work and trunk is generating garbage that crashes mcu.
>
>
> http://reviews.llvm.org/D20162
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