[PATCH] D155698: [RISCV] Add patterns for vnsr[a,l].wx where shift amount has different type than vector element

[Craig Topper via Phabricator via llvm-commits]

craig.topper added inline comments.


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Comment at: llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td:1436
+      // Match scalar splats of any smaller element size that have been extended
+      defvar SmallerScalars = !filter(vt, [i8, i16, i32, i64], !le(vt.Size, vti.Vector.ElementType.Size));
+      foreach Scalar = SmallerScalars in {
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luke wrote:
> Iterating over this fixed list of scalars is a bit hairy. Are there any other ways that we can get a list of vectors with the same length but different element type?
I wonder if we've reached the point where we should use a ComplexPattern to look through the extend and find the scalar?


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  https://reviews.llvm.org/D155698/new/

https://reviews.llvm.org/D155698