(INITIAL_ELIMINATION_OFFSET): Subtract

current_function_pretend_args_size from OFFSET for AP.

From-SVN: r3961

diff --git a/gcc/config/alpha/alpha.h b/gcc/config/alpha/alpha.h
index 63bf66b5314f57f1abd6a75d161c8096675c2be1..c69aade111f3db08893347c4d0d1b2ac0b063047 100644 (file)
--- a/gcc/config/alpha/alpha.h
+++ b/gcc/config/alpha/alpha.h
@@ -601,7 +601,7 @@ enum reg_class { NO_REGS, GENERAL_REGS, FLOAT_REGS, ALL_REGS,
 
 /* Definitions for register eliminations.
 
-   We have two registers that can be eliminated on the i386.  First, the
+   We have two registers that can be eliminated on the Alpha.  First, the
    frame pointer register can often be eliminated in favor of the stack
    pointer register.  Secondly, the argument pointer register can always be
    eliminated; it is replaced with either the stack or frame pointer. */
@@ -630,9 +630,14 @@ enum reg_class { NO_REGS, GENERAL_REGS, FLOAT_REGS, ALL_REGS,
 { if ((FROM) == FRAME_POINTER_REGNUM && (TO) == STACK_POINTER_REGNUM)  \
     (OFFSET) = 0;                                                      \
   else                                                                 \
-    (OFFSET) = (get_frame_size () + current_function_outgoing_args_size \
-               + current_function_pretend_args_size                    \
-               + alpha_sa_size () + 15) & ~ 15;                        \
+    {                                                                  \
+      (OFFSET) = ((get_frame_size () + current_function_outgoing_args_size \
+                  + current_function_pretend_args_size                 \
+                  + alpha_sa_size () + 15)                             \
+                 & ~ 15);                                              \
+      if ((FROM) == ARG_POINTER_REGNUM)                                        \
+       (OFFSET) -= current_function_pretend_args_size;                 \
+    }                                                                  \
 }
 
 /* Define this if stack space is still allocated for a parameter passed