llvm-project

3637f66b - [RISCV][TTI] Fix crash of non-built-in vector type cost quering. (#167258)

[RISCV][TTI] Fix crash of non-built-in vector type cost quering. (#167258) For the non-built-in vector type, the RISCV cost model cannot handle this properly. So fall back to the BasicTTI for this situation. Fixes: #166732