re PR c/5609 (ICE on named operands in inline assembler)

        PR c/5609
        * stmt.c (resolve_operand_name_1): Take more care with mixed
        named and unnamed operands.

        * gcc.dg/asm-4.c: Add case with an unnamed operand in the middle.

From-SVN: r49560

gcc/ChangeLog

+2002-02-06  Richard Henderson  <rth@redhat.com>
+
+	PR c/5609
+	* stmt.c (resolve_operand_name_1): Take more care with mixed
+	named and unnamed operands.
+
 2002-02-06  Janis Johnson  <janis187@us.ibm.com>
 	    Jan Hubicka  <jh@suse.cz>
 

gcc/stmt.c

@@ -2149,15 +2149,23 @@ resolve_operand_name_1 (p, outputs, inputs)
   /* Resolve the name to a number.  */
   for (op = 0, t = outputs; t ; t = TREE_CHAIN (t), op++)
     {
-      const char *c = IDENTIFIER_POINTER (TREE_PURPOSE (TREE_PURPOSE (t)));
-      if (strncmp (c, p + 1, len) == 0 && c[len] == '\0')
-	goto found;
+      tree id = TREE_PURPOSE (TREE_PURPOSE (t));
+      if (id)
+	{
+	  const char *c = IDENTIFIER_POINTER (id);
+	  if (strncmp (c, p + 1, len) == 0 && c[len] == '\0')
+	    goto found;
+	}
     }
   for (t = inputs; t ; t = TREE_CHAIN (t), op++)
     {
-      const char *c = IDENTIFIER_POINTER (TREE_PURPOSE (TREE_PURPOSE (t)));
-      if (strncmp (c, p + 1, len) == 0 && c[len] == '\0')
-	goto found;
+      tree id = TREE_PURPOSE (TREE_PURPOSE (t));
+      if (id)
+	{
+	  const char *c = IDENTIFIER_POINTER (id);
+	  if (strncmp (c, p + 1, len) == 0 && c[len] == '\0')
+	    goto found;
+	}
     }
 
   *q = '\0';

gcc/testsuite/ChangeLog

+2002-02-06  Richard Henderson  <rth@redhat.com>
+
+	* gcc.dg/asm-4.c: Add case with an unnamed operand in the middle.
+
 2002-02-06  Janis Johnson  <janis187@us.ibm.com>
 
 	* gcc.dg/20020206-1.c: New test.

gcc/testsuite/gcc.dg/asm-4.c

@@ -8,6 +8,7 @@ int main()
   asm volatile ("test0 X%0Y%[arg]Z" : [arg] "=g" (x));
   asm volatile ("test1 X%[out]Y%[in]Z" : [out] "=g" (y) : [in] "0"(y));
   asm volatile ("test2 X%a0Y%a[arg]Z" : : [arg] "p" (&z));
+  asm volatile ("test3 %[in]" : [inout] "=g"(x) : "[inout]" (x), [in] "g" (y));
 }
 
 /* ??? Someone explain why the back reference dosn't work.  */