[Bug target/106544] New: riscv_print_operand does not check to see if the operands are valid to do INTVAL on them

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106544

            Bug ID: 106544
           Summary: riscv_print_operand does not check to see if the
                    operands are valid to do INTVAL on them
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Keywords: ice-checking, ice-on-invalid-code, inline-asm
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: pinskia at gcc dot gnu.org
  Target Milestone: ---
            Target: riscv

riscv_print_operand currently does not check to see if CONST_INT_P is true on
the operand before calling INTVAL on it.

This can cause an ICE with RTL checking and inline-asm with these used.

See aarch64_print_operand in config/aarch64/aarch64.cc for an examples on how
to fix this.