re PR target/80090 (Incorrect assembler - output_addr_const may generate…

re PR target/80090 (Incorrect assembler - output_addr_const may generate visibility output between op and address constant)

	PR target/80090
	* config/pa/pa.c (pa_assemble_integer): When outputting a SYMBOL_REF,
	handle calling assemble_external ourself.

From-SVN: r247872

gcc/ChangeLog

 2017-05-10  John David Anglin  <danglin@gcc.gnu.org>
 
+	PR target/80090
+	* config/pa/pa.c (pa_assemble_integer): When outputting a SYMBOL_REF,
+	handle calling assemble_external ourself.
+
 	PR target/79027
 	* config/pa/pa.c (pa_cannot_change_mode_class): Reject changes to/from
 	modes with zero size.  Enhance comment.

gcc/config/pa/pa.c

@@ -3299,6 +3299,24 @@ pa_output_64bit_ior (rtx *operands)
 static bool
 pa_assemble_integer (rtx x, unsigned int size, int aligned_p)
 {
+  bool result;
+  tree decl = NULL;
+
+  /* When we have a SYMBOL_REF with a SYMBOL_REF_DECL, we need to call
+     call assemble_external and set the SYMBOL_REF_DECL to NULL before
+     calling output_addr_const.  Otherwise, it may call assemble_external
+     in the midst of outputing the assembler code for the SYMBOL_REF.
+     We restore the SYMBOL_REF_DECL after the output is done.  */
+  if (GET_CODE (x) == SYMBOL_REF)
+    {
+      decl = SYMBOL_REF_DECL (x);
+      if (decl)
+	{
+	  assemble_external (decl);
+	  SET_SYMBOL_REF_DECL (x, NULL);
+	}
+    }
+
   if (size == UNITS_PER_WORD
       && aligned_p
       && function_label_operand (x, VOIDmode))
@@ -3311,9 +3329,15 @@ pa_assemble_integer (rtx x, unsigned int size, int aligned_p)
 
       output_addr_const (asm_out_file, x);
       fputc ('\n', asm_out_file);
-      return true;
+      result = true;
     }
-  return default_assemble_integer (x, size, aligned_p);
+  else
+    result = default_assemble_integer (x, size, aligned_p);
+
+  if (decl)
+    SET_SYMBOL_REF_DECL (x, decl);
+
+  return result;
 }
 
 /* Output an ascii string.  */