[PATCH] RISC-V: fix build after "Add support for arbitrary immediate encoding formats"

[Jan Beulich]

Pre- and post-increment/decrement are side effects, the behavior of
which is undefined when combined with passing an address of the accessed
variable in the same function invocation. There's no need for the
increments here - simply adding 1 achieves the intended effect without
triggering compiler diagnostics (which are fatal with -Werror).
---
Committing as obvious.

--- a/gas/config/tc-riscv.c
+++ b/gas/config/tc-riscv.c
@@ -1287,10 +1287,10 @@ validate_riscv_insn (const struct riscv_
 		case 'u': /* 'XuN@S' ... N-bit unsigned immediate at bit S.  */
 		  goto use_imm;
 		use_imm:
-		  n = strtol (++oparg, (char **)&oparg, 10);
+		  n = strtol (oparg + 1, (char **)&oparg, 10);
 		  if (*oparg != '@')
 		    goto unknown_validate_operand;
-		  s = strtol (++oparg, (char **)&oparg, 10);
+		  s = strtol (oparg + 1, (char **)&oparg, 10);
 		  oparg--;
 
 		  USE_IMM (n, s);
@@ -3327,10 +3327,10 @@ riscv_ip (char *str, struct riscv_cl_ins
 		      sign = false;
 		      goto parse_imm;
 		    parse_imm:
-		      n = strtol (++oparg, (char **)&oparg, 10);
+		      n = strtol (oparg + 1, (char **)&oparg, 10);
 		      if (*oparg != '@')
 			goto unknown_riscv_ip_operand;
-		      s = strtol (++oparg, (char **)&oparg, 10);
+		      s = strtol (oparg + 1, (char **)&oparg, 10);
 		      oparg--;
 
 		      my_getExpression (imm_expr, asarg);
--- a/opcodes/riscv-dis.c
+++ b/opcodes/riscv-dis.c
@@ -586,10 +586,10 @@ print_insn_args (const char *oparg, insn
 		  sign = false;
 		  goto print_imm;
 		print_imm:
-		  n = strtol (++oparg, (char **)&oparg, 10);
+		  n = strtol (oparg + 1, (char **)&oparg, 10);
 		  if (*oparg != '@')
 		    goto undefined_modifier;
-		  s = strtol (++oparg, (char **)&oparg, 10);
+		  s = strtol (oparg + 1, (char **)&oparg, 10);
 		  oparg--;
 
 		  if (!sign)