[PATCH] D98934: [SVE] Add instruction cost for fptrunc in loops

David Sherwood via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon Mar 22 02:28:11 PDT 2021


david-arm added inline comments.


================
Comment at: llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp:470
+
+    // From nxvmf32 to nxmf64
+    { ISD::FP_ROUND, MVT::nxv2f32, MVT::nxv2f64, 1 },
----------------
nit: I think this should be:

  // From nxvmf32 to nxvmf64


================
Comment at: llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp:473
+    { ISD::FP_ROUND, MVT::nxv4f32, MVT::nxv4f64, 1 },
+    { ISD::FP_ROUND, MVT::nxv8f32, MVT::nxv8f64, 1 },
   };
----------------
Are we missing other types/combinations here too? For example:

  { ISD::FP_ROUND, MVT::nxv2f16, MVT::nxv2f64, 1 },

and

  { ISD::FP_ROUND, MVT::nxv4f16, MVT::nxv4f32, 1 },



Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D98934/new/

https://reviews.llvm.org/D98934



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