[PATCH] D49717: [x86] Teach the x86 backend that it can fold between TCRETURNm* and TCRETURNr* and fix latent bugs with register class updates.

[Craig Topper via Phabricator via llvm-commits]

craig.topper added inline comments.


================
Comment at: llvm/lib/Target/X86/X86InstrInfo.cpp:4672
+    auto *NewRC = MRI.constrainRegClass(
+        Reg, TII.getRegClass(TII.get(NewMI.getOpcode()), Idx, &TRI, MF));
+    if (!NewRC) {
----------------
Not at my computer but can this be NewMI.getDesc instead of TII.get?


Repository:
  rL LLVM

https://reviews.llvm.org/D49717