(emit_move_insn_1): For complex stack push, don't use change_address.

From-SVN: r4983

diff --git a/gcc/expr.c b/gcc/expr.c
index 187b25b3d0d57f29f72bf124fec72ff2c7381acb..b3addecc7892e261cc9b44fbc37780ccebbf4478 100644 (file)
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -1648,14 +1648,31 @@ emit_move_insn_1 (x, y)
 
         In that case, change_address is used only to convert
         the mode, not to change the address.  */
-      emit_insn (GEN_FCN (mov_optab->handlers[(int) submode].insn_code)
-                ((stack ? change_address (x, submode, (rtx) 0)
-                  : gen_highpart (submode, x)),
-                 gen_highpart (submode, y)));
-      emit_insn (GEN_FCN (mov_optab->handlers[(int) submode].insn_code)
-                ((stack ? change_address (x, submode, (rtx) 0)
-                  : gen_lowpart (submode, x)),
-                 gen_lowpart (submode, y)));
+      if (stack)
+       {
+#ifdef STACK_GROWS_DOWNWARD
+         emit_insn (GEN_FCN (mov_optab->handlers[(int) submode].insn_code)
+                    (gen_rtx (MEM, submode, (XEXP (x, 0))),
+                     gen_highpart (submode, y)));
+         emit_insn (GEN_FCN (mov_optab->handlers[(int) submode].insn_code)
+                    (gen_rtx (MEM, submode, (XEXP (x, 0))),
+                     gen_lowpart (submode, y)));
+#else
+         emit_insn (GEN_FCN (mov_optab->handlers[(int) submode].insn_code)
+                    (gen_rtx (MEM, submode, (XEXP (x, 0))),
+                     gen_lowpart (submode, y)));
+         emit_insn (GEN_FCN (mov_optab->handlers[(int) submode].insn_code)
+                    (gen_rtx (MEM, submode, (XEXP (x, 0))),
+                     gen_highpart (submode, y)));
+#endif
+       }
+      else
+       {
+         emit_insn (GEN_FCN (mov_optab->handlers[(int) submode].insn_code)
+                    (gen_highpart (submode, x), gen_highpart (submode, y)));
+         emit_insn (GEN_FCN (mov_optab->handlers[(int) submode].insn_code)
+                    (gen_lowpart (submode, x), gen_lowpart (submode, y)));
+       }
 
       group_insns (prev);