[PATCH] D124834: [fastregalloc] Fix bug when undef value is tied to def.

[Craig Topper via Phabricator via llvm-commits]

craig.topper added inline comments.


================
Comment at: llvm/test/CodeGen/X86/fastregalloc-tied-undef.mir:27
+
+    %0:vr128 = PXORrr undef %0, undef %0
+    MOVAPSmr %stack.1, 1, $noreg, 0, $noreg, %0
----------------
Was this a synthetic example? It shouldn't be possible to generate a PXORrr like this before register allocation.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D124834/new/

https://reviews.llvm.org/D124834