(output_addr_const): Call simplify_subtraction.

From-SVN: r2403

(output_addr_const): Call simplify_subtraction.
From-SVN: r2403
1f1fd3b1 · Richard Stallman · 8b487c1f · 1f1fd3b1
Commit 1f1fd3b1 authored Oct 12, 1992 by Richard Stallman
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gcc/final.c
+6 -0

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--- a/gcc/final.c
+++ b/gcc/final.c
@@ -2278,6 +2278,12 @@ output_addr_const (file, x)
      break;

    case MINUS:
+      /* Avoid outputting things like x-x or x+5-x,
+	 since some assemblers can't handle that.  */
+      x = simplify_subtraction (x);
+      if (GET_CODE (x) != MINUS)
+	goto restart;
+
      output_addr_const (file, XEXP (x, 0));
      fprintf (file, "-");
      if (GET_CODE (XEXP (x, 1)) == CONST_INT