[PATCH] D153351: [RISCV] Fold vmv.v.v into vops

[Craig Topper via Phabricator via llvm-commits]

craig.topper added a comment.

What prevents this from changing the VL of a vcompress or a reduction?



================
Comment at: llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp:3499
+  // Only transform pseudos where we know there's a VL operand.
+  if (!RISCVVPseudosTable::getPseudoInfo(SrcOpc))
+    return false;
----------------
Why aren't we using RISCVII::hasVLOp if you want to know there is a VL operand.


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  https://reviews.llvm.org/D153351/new/

https://reviews.llvm.org/D153351