* final.c (alter_subreg): Assign REGNO after changing the rtx code.

From-SVN: r48432

* final.c (alter_subreg): Assign REGNO after changing the rtx code.
From-SVN: r48432
7687c5b8 · Richard Henderson · a124fcda · 7687c5b8
Commit 7687c5b8 authored 23 years ago by Richard Henderson
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gcc/final.c
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--- a/gcc/final.c
+++ b/gcc/final.c
@@ -2754,8 +2754,9 @@ alter_subreg (xp)
      /* Simplify_subreg can't handle some REG cases, but we have to.  */
      else if (GET_CODE (y) == REG)
 	{
-	  REGNO (x) = subreg_hard_regno (x, 1);
+	  unsigned int regno = subreg_hard_regno (x, 1);
 	  PUT_CODE (x, REG);
+	  REGNO (x) = regno;
 	  ORIGINAL_REGNO (x) = ORIGINAL_REGNO (y);
 	  /* This field has a different meaning for REGs and SUBREGs.  Make
 	     sure to clear it!  */