[PATCH] D153432: [SDAGBuilder] Handle multi-part arguments in argument copy elision (PR63430)

Matt Arsenault via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Wed Jun 21 08:33:37 PDT 2023


arsenm added inline comments.


================
Comment at: llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp:10928
+      for (EVT VT : ValueVTs)
+        NumParts += TLI->getNumRegistersForCallingConv(*CurDAG->getContext(),
+                                                       F.getCallingConv(), VT);
----------------
For some reason this is split into two hooks for the register type and the number of registers. Wouldn't you need to account for the split and promoted / demoted case?


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  https://reviews.llvm.org/D153432/new/

https://reviews.llvm.org/D153432



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