stmt.c (expand_return): Don't return anything if size is zero.

	* stmt.c (expand_return): Don't return anything if size is zero.
	Delete redundant assignment to BYTES.
	* expr.c (move_block_from_reg): Do nothing if NREGS is zero.

From-SVN: r39156

1 files changed, 3 insertions, 0 deletions

diff --git a/gcc/expr.c b/gcc/expr.c
index a78be1b..848431e 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -1857,6 +1857,9 @@ move_block_from_reg (regno, x, nregs, size)
 #endif
   enum machine_mode mode;
 
+  if (nregs == 0)
+    return;
+
   /* If SIZE is that of a mode no bigger than a word, just use that
      mode's store operation.  */
   if (size <= UNITS_PER_WORD