(winnt_function_prologue): Deleted.

(gen_stdcall_suffix): New function.

From-SVN: r9199

1 files changed, 23 insertions, 55 deletions

diff --git a/gcc/config/i386/winnt.c b/gcc/config/i386/winnt.c
index 813724c..89b7745 100644
--- a/gcc/config/i386/winnt.c
+++ b/gcc/config/i386/winnt.c
@@ -27,65 +27,33 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #include "tree.h"
 #include "flags.h"
 
-/* This function generates the assembly code for function entry.
-   FILE is an stdio stream to output the code to.
-   SIZE is an int: how many units of temporary storage to allocate. */
+/* Return string which is the former assembler name modified with a 
+   suffix consisting of an atsign (@) followed by the number of bytes of 
+   arguments */
 
-void
-winnt_function_prologue (file, size)
-     FILE *file;
-     int size;
+char *
+gen_stdcall_suffix (decl)
+  tree decl;
 {
-  register int regno;
-  int limit;
-  rtx xops[4];
-  int pic_reg_used = flag_pic && (current_function_uses_pic_offset_table
-				  || current_function_uses_const_pool);
+  int total = 0;
+  char *asmname = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl));
+  char *newsym;
 
-  xops[0] = stack_pointer_rtx;
-  xops[1] = frame_pointer_rtx;
-  xops[2] = GEN_INT (size);
-  xops[3] = gen_rtx (REG, Pmode, 0); /* eax */
-  if (frame_pointer_needed)
-    {
-      output_asm_insn ("push%L1 %1", xops);
-      output_asm_insn (AS2 (mov%L0,%0,%1), xops);
-    }
-
-  if (size > 4095)
-    {
-      output_asm_insn (AS2 (mov%L0, %2, %3), xops);
-      output_asm_insn ("call __chkstk", xops);
-    }
-  else if (size)
-    output_asm_insn (AS2 (sub%L0,%2,%0), xops);
-
-  /* Note If use enter it is NOT reversed args.
-     This one is not reversed from intel!!
-     I think enter is slower.  Also sdb doesn't like it.
-     But if you want it the code is:
-     {
-     xops[3] = const0_rtx;
-     output_asm_insn ("enter %2,%3", xops);
-     }
-     */
-  limit = (frame_pointer_needed ? FRAME_POINTER_REGNUM : STACK_POINTER_REGNUM);
-  for (regno = limit - 1; regno >= 0; regno--)
-    if ((regs_ever_live[regno] && ! call_used_regs[regno])
-	|| (regno == PIC_OFFSET_TABLE_REGNUM && pic_reg_used))
+  if (TYPE_ARG_TYPES (TREE_TYPE (decl)))
+    if (TREE_VALUE (tree_last (TYPE_ARG_TYPES (TREE_TYPE (decl)))) 
+        == void_type_node)
       {
-	xops[0] = gen_rtx (REG, SImode, regno);
-	output_asm_insn ("push%L0 %0", xops);
-      }
+        tree formal_type = TYPE_ARG_TYPES (TREE_TYPE (decl));
 
-  if (pic_reg_used)
-    {
-      xops[0] = pic_offset_table_rtx;
-      xops[1] = (rtx) gen_label_rtx ();
+        while (TREE_VALUE (formal_type) != void_type_node)
+          {
+            total += TREE_INT_CST_LOW (TYPE_SIZE (TREE_VALUE (formal_type)));
+            formal_type = TREE_CHAIN (formal_type);
+          }
+      }
 
-      output_asm_insn (AS1 (call,%P1), xops);
-      ASM_OUTPUT_INTERNAL_LABEL (file, "L", CODE_LABEL_NUMBER (xops[1]));
-      output_asm_insn (AS1 (pop%L0,%0), xops);
-      output_asm_insn ("addl $_GLOBAL_OFFSET_TABLE_+[.-%P1],%0", xops);
-    }
+  newsym = xmalloc (strlen (asmname) + 10);
+  sprintf (newsym, "%s@%d", asmname, total/BITS_PER_UNIT);
+  return IDENTIFIER_POINTER (get_identifier (newsym));
 }
+