[PATCH] D35073: [RegisterCoalescer] Fix for subrange join unreachable

[Samuel Pitoiset via Phabricator via llvm-commits]

hakzsam added a comment.

In https://reviews.llvm.org/D35073#976838, @dstuttard wrote:

> Any more comments on this change? If not I'll land this in the next few days.


Hi,

I hit a similar issue with AMDGPU backend but your patch doesn't seem to fix it.

The LLVM IR is https://hastebin.com/uxeqojudoy and the backtrace is https://hastebin.com/nitozuzeye.makefile

Not sure if that will help but the unreachable is triggered only if LLVMEarlyCSEMemPass is used.

Any ideas?

Thanks!


https://reviews.llvm.org/D35073