[PATCH] D80053: [GlobalISel] Don't combine instructions which are fed by memory instructions.

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added inline comments.


================
Comment at: llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp:1542
+  // are different.
+  if (I1->mayLoadOrStore())
+    return false;
----------------
arsenm wrote:
> Could also consider if the load is invariant 
Something like == G_LOAD && isDereferenceableInvariantLoad?


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D80053/new/

https://reviews.llvm.org/D80053