[PATCH] D26449: DAGCombiner: fix combine of trunc and select

[Sanjay Patel via llvm-commits]

spatel added a comment.

Thanks for tracking this down!

1. Please use the regression test from:

https://llvm.org/bugs/show_bug.cgi?id=29002#c1

I think that's the minimal case. If you want to include the original test in this patch, I suppose that's ok, but I don't think it actually adds value. Zvi's example in:
https://llvm.org/bugs/show_bug.cgi?id=29002#c2
probably is interesting as it shows a different output?

2. Please use utils/update_llc_test_checks.py to auto-generate complete checks (and then remove any lines that you think are irrelevant).


Repository:
  rL LLVM

https://reviews.llvm.org/D26449