(mark_used_regs): Only show changes size if one mode is integral.

From-SVN: r7904

(mark_used_regs): Only show changes size if one mode is integral.
From-SVN: r7904
5638ef0d · Richard Kenner · 04c9e540 · 5638ef0d
Commit 5638ef0d authored Aug 12, 1994 by Richard Kenner
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gcc/flow.c
+3 -1

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--- a/gcc/flow.c
+++ b/gcc/flow.c
@@ -2282,7 +2282,9 @@ mark_used_regs (needed, live, x, final, insn)
      if (GET_CODE (SUBREG_REG (x)) == REG
 	  && REGNO (SUBREG_REG (x)) >= FIRST_PSEUDO_REGISTER
 	  && (GET_MODE_SIZE (GET_MODE (x))
-	      != GET_MODE_SIZE (GET_MODE (SUBREG_REG (x)))))
+	      != GET_MODE_SIZE (GET_MODE (SUBREG_REG (x))))
+	  && (INTEGRAL_MODE_P (GET_MODE (x))
+	      || INTEGRAL_MODE_P (GET_MODE (SUBREG_REG (x)))))
 	reg_changes_size[REGNO (SUBREG_REG (x))] = 1;

      /* While we're here, optimize this case.  */