[PATCH v2 4/7] RISC-V: don't recognize bogus relocations

[Jan Beulich <jbeulich@suse.com>]

With my_getSmallExpression() consistently and silently failing on
relocation operators not fitting an insn, it is no longer necessary to
hand it percent_op_itype[] "just in case" (i.e. to avoid errors when a
subsequent parsing attempt for another operand combination might
succeed). This also eliminates the latent problem of percent_op_itype[]
and percent_op_stype[] growing a non-identical set of recognized
relocation operators.
---
v2: New.

--- a/gas/config/tc-riscv.c
+++ b/gas/config/tc-riscv.c
@@ -2517,7 +2517,7 @@ riscv_ip (char *str, struct riscv_cl_ins
 
       imm_expr->X_op = O_absent;
       *imm_reloc = BFD_RELOC_UNUSED;
-      p = percent_op_itype;
+      p = percent_op_null;
 
       for (oparg = insn->args;; ++oparg)
 	{
@@ -3233,7 +3233,6 @@ riscv_ip (char *str, struct riscv_cl_ins
 	      p = percent_op_rtype;
 	      goto alu_op;
 	    case '0': /* AMO displacement, which must be zero.  */
-	      p = percent_op_null;
 	    load_store:
 	      if (riscv_handle_implicit_zero_offset (imm_expr, asarg))
 		continue;