Do not assign long long argument to memory in prologue if loaded in register.

[pf3gnuchains/gcc-fork.git] / gcc / function.c

diff --git a/gcc/function.c b/gcc/function.c
index f4c90b5..5af0a90 100644 (file)
--- a/gcc/function.c
+++ b/gcc/function.c
@@ -4374,6 +4374,7 @@ assign_parms (tree fndecl)
       int in_regs;
       int partial = 0;
       int pretend_bytes = 0;
+      int loaded_in_reg = 0;
 
       /* Set LAST_NAMED if this is last named arg before last
         anonymous args.  */
@@ -4745,6 +4746,7 @@ assign_parms (tree fndecl)
              emit_group_store (parmreg, entry_parm, TREE_TYPE (parm),
                                int_size_in_bytes (TREE_TYPE (parm)));
              SET_DECL_RTL (parm, parmreg);
+             loaded_in_reg = 1;
 
              if (regno >= max_parm_reg)
                {
@@ -4776,7 +4778,8 @@ assign_parms (tree fndecl)
             Handle calls that pass values in multiple non-contiguous
             locations.  The Irix 6 ABI has examples of this.  */
          if (GET_CODE (entry_parm) == REG
-             || GET_CODE (entry_parm) == PARALLEL)
+             || (GET_CODE (entry_parm) == PARALLEL
+                && (!loaded_in_reg || !optimize)))
            {
              int size = int_size_in_bytes (TREE_TYPE (parm));
              int size_stored = CEIL_ROUND (size, UNITS_PER_WORD);