[llvm-commits] [PATCH] Patch (WIP) to custom-lower 64-bit relational comparisons on x86-32

[Chris Lattner]

On Feb 16, 2011, at 4:25 PM, Eli Friedman wrote:
> I'm mainly looking for feedback as to whether this seems like
> generally a good idea... I haven't seen any compiler use this
> particular implementation of relational comparisons.

This looks pretty spiffy to me.  A couple of requests though:

1. Please make this work for i128 on x86-64.
2. Please change the if/else sequence to use a switch with a  default case that explodes.
4. Please fit in 80 columns
8. I think you only need to do the setOperationAction when building for 32-bit. 
16. Does the code handle weird conditions like "COND_P"?

-Chris