Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

pseudo-jump-invalid.s
# RUN: not llvm-mc -triple riscv32 < %s 2>&1 | FileCheck %s

jump 1234, x31 # CHECK: :[[@LINE]]:6: error: operand must be a valid jump target
jump foo@plt, x31 # CHECK: :[[@LINE]]:6: error: operand must be a valid jump target
jump %pcrel_lo(1234), x31 # CHECK: :[[@LINE]]:6: error: unknown token in expression