[llvm] [RISC-V][GISEL] Select G_BITCAST for scalable vectors (PR #101486)

[Craig Topper via llvm-commits]

topperc wrote:

> I am looking into why this is failing for rv64.

It's failing because only one pattern exists in lib/Target/RISCV/RISCVGenGlobalISel.inc

https://github.com/llvm/llvm-project/pull/101486