Don't always align reload stack slots to BIGGEST_ALIGNMENT

From-SVN: r13609

diff --git a/gcc/reload1.c b/gcc/reload1.c
index d380b53..780fc1f 100644 (file)
--- a/gcc/reload1.c
+++ b/gcc/reload1.c
@@ -2465,7 +2465,8 @@ alter_reg (i, from_reg)
       if (from_reg == -1)
        {
          /* No known place to spill from => no slot to reuse.  */
-         x = assign_stack_local (GET_MODE (regno_reg_rtx[i]), total_size, -1);
+         x = assign_stack_local (GET_MODE (regno_reg_rtx[i]), total_size,
+                                 inherent_size == total_size ? 0 : -1);
          if (BYTES_BIG_ENDIAN)
            /* Cancel the  big-endian correction done in assign_stack_local.
               Get the address of the beginning of the slot.
@@ -2497,7 +2498,8 @@ alter_reg (i, from_reg)
                total_size = spill_stack_slot_width[from_reg];
            }
          /* Make a slot with that size.  */
-         x = assign_stack_local (mode, total_size, -1);
+         x = assign_stack_local (mode, total_size,
+                                 inherent_size == total_size ? 0 : -1);
          stack_slot = x;
          if (BYTES_BIG_ENDIAN)
            {