[PATCH] D151176: [RISCV] Custom lower fixed-length vector llvm.is.fpclass to vfclass.v

Liao Chunyu via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue May 23 19:28:09 PDT 2023


liaolucy added inline comments.


================
Comment at: llvm/lib/Target/RISCV/RISCVISelLowering.cpp:4392
+
+  if (VT.isFixedLengthVector()) {
+    SDValue Op0 = Op.getOperand(0);
----------------
craig.topper wrote:
> Why not scalable vectors?
I did not find the scalable llvm.is.fpclass.
https://llvm.org/docs/LangRef.html#llvm-is-fpclass-intrinsic
It seems that this scalableintrinsic should be supported first.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D151176/new/

https://reviews.llvm.org/D151176



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