RISC-V: use is_whitespace()

Wherever blanks are permissible in input, tabs ought to be permissible,
too. This is particularly relevant when -f is passed to gas (alongside
appropriate input). Switch places already checking for tabs to use the
macro, too.

diff --git a/gas/config/tc-riscv.c b/gas/config/tc-riscv.c
index 79ff0832bedd5ff92c9db2f297ca9f3364b77b3c..eb0d681bb3ce434609a8623471a20ab508203543 100644 (file)
--- a/gas/config/tc-riscv.c
+++ b/gas/config/tc-riscv.c
@@ -2484,7 +2484,7 @@ parse_relocation (char **str, bfd_reloc_code_real_type *reloc,
       {
        size_t len = 1 + strlen (percent_op->str);
 
-       while (ISSPACE ((*str)[len]))
+       while (is_whitespace ((*str)[len]))
          ++len;
        if ((*str)[len] != '(')
          continue;
@@ -2548,7 +2548,7 @@ my_getSmallExpression (expressionS *ep, bfd_reloc_code_real_type *reloc,
 
       /* Skip over whitespace and brackets, keeping count of the number
         of brackets.  */
-      while (*str == ' ' || *str == '\t' || *str == '(')
+      while (is_whitespace (*str) || *str == '(')
        if (*str++ == '(')
          str_depth++;
     }
@@ -2577,7 +2577,7 @@ my_getSmallExpression (expressionS *ep, bfd_reloc_code_real_type *reloc,
   probing_insn_operands = orig_probing;
 
   /* Match every open bracket.  */
-  while (crux_depth > 0 && (*str == ')' || *str == ' ' || *str == '\t'))
+  while (crux_depth > 0 && (*str == ')' || is_whitespace (*str)))
     if (*str++ == ')')
       crux_depth--;
 
@@ -2844,7 +2844,7 @@ riscv_ip (char *str, struct riscv_cl_insn *ip, expressionS *imm_expr,
   /* Parse the name of the instruction.  Terminate the string if whitespace
      is found so that str_hash_find only sees the name part of the string.  */
   for (asarg = str; *asarg!= '\0'; ++asarg)
-    if (ISSPACE (*asarg))
+    if (is_whitespace (*asarg))
       {
        save_c = *asarg;
        *asarg++ = '\0';
@@ -2891,7 +2891,8 @@ riscv_ip (char *str, struct riscv_cl_insn *ip, expressionS *imm_expr,
       for (oparg = insn->args;; ++oparg)
        {
          opargStart = oparg;
-         asarg += strspn (asarg, " \t");
+         while (is_whitespace (*asarg))
+           ++asarg;
          switch (*oparg)
            {
            case '\0': /* End of args.  */
@@ -3520,7 +3521,7 @@ riscv_ip (char *str, struct riscv_cl_insn *ip, expressionS *imm_expr,
              if (reg_lookup (&asarg, RCLASS_GPR, &regno))
                {
                  char c = *oparg;
-                 if (*asarg == ' ')
+                 if (is_whitespace (*asarg))
                    ++asarg;
 
                  /* Now that we have assembled one operand, we use the args
@@ -3554,7 +3555,7 @@ riscv_ip (char *str, struct riscv_cl_insn *ip, expressionS *imm_expr,
                              ? RCLASS_GPR : RCLASS_FPR), &regno))
                {
                  char c = *oparg;
-                 if (*asarg == ' ')
+                 if (is_whitespace (*asarg))
                    ++asarg;
                  switch (c)
                    {
@@ -4963,7 +4964,7 @@ s_riscv_option (int x ATTRIBUTE_UNUSED)
   else if (strncmp (name, "arch,", 5) == 0)
     {
       name += 5;
-      if (ISSPACE (*name) && *name != '\0')
+      if (is_whitespace (*name) && *name != '\0')
        name++;
       riscv_update_subset (&riscv_rps_as, name);
       riscv_set_arch_str (&riscv_rps_as.subset_list->arch_str);