[llvm] [RISCV] Fix crash when unrolling loop containing vector instructions (PR #83384)

[Fraser Cormack via llvm-commits]

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@@ -37,6 +37,9 @@ static cl::opt<unsigned> SLPMaxVF(
 InstructionCost
 RISCVTTIImpl::getRISCVInstructionCost(ArrayRef<unsigned> OpCodes, MVT VT,
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frasercrmck wrote:

This might be an aside but I find it a little surprising that this function's called `getRISCVInstructionCost` but it only handles vector instructions. Sounds like it should be `getRVVInstructionCost`. I might be missing something though.

https://github.com/llvm/llvm-project/pull/83384