[Bug target/116822] [15 regression] RISC-V: ICE in compute_nregs_for_mode, at config/riscv/riscv-vector-costs.cc

[ewlu at rivosinc dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116822

--- Comment #1 from Edwin Lu <ewlu at rivosinc dot com> ---
Bisected down to r15-3794-g2c04f175de4 as the first bad commit