[PATCH] D121199: [RISCV] Don't enable loop vectorizer interleaving if the V extension is scalable

[Liao Chunyu via Phabricator via llvm-commits]

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Possible scalable vectorization does not require unroll


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D121199

Files:
  llvm/lib/Target/RISCV/RISCVSubtarget.h


Index: llvm/lib/Target/RISCV/RISCVSubtarget.h
===================================================================
--- llvm/lib/Target/RISCV/RISCVSubtarget.h
+++ llvm/lib/Target/RISCV/RISCVSubtarget.h
@@ -223,7 +223,7 @@
   // F16 and F64 both require F32.
   bool hasVInstructionsAnyF() const { return hasVInstructionsF32(); }
   unsigned getMaxInterleaveFactor() const {
-    return hasVInstructions() ? MaxInterleaveFactor : 1;
+    return useRVVForFixedLengthVectors() ? MaxInterleaveFactor : 1;
   }
 
 protected:


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