reorg.c (mark_set_resources, case REG): A register is set iff "in_dest" is nonzero.

	* reorg.c (mark_set_resources, case REG): A register is set iff
	"in_dest" is nonzero.

From-SVN: r2203

diff --git a/gcc/reorg.c b/gcc/reorg.c
index e9802a919694fdf78b8d8ad3715ee36b651d48af..c89ce73e65a1c97ea5eb7e09d7a57b1e10521b4a 100644 (file)
--- a/gcc/reorg.c
+++ b/gcc/reorg.c
@@ -522,8 +522,9 @@ mark_set_resources (x, res, in_dest, include_called_routine)
       return;
 
     case REG:
-      for (i = 0; i < HARD_REGNO_NREGS (REGNO (x), GET_MODE (x)); i++)
-       SET_HARD_REG_BIT (res->regs, REGNO (x) + i);
+      if (in_dest)
+        for (i = 0; i < HARD_REGNO_NREGS (REGNO (x), GET_MODE (x)); i++)
+         SET_HARD_REG_BIT (res->regs, REGNO (x) + i);
       return;
     }