[itanium-sched-branch] New interface function dfa_clean_insn_cache [patch]

[Vladimir Makarov <vmakarov at redhat dot com>]

  I am planning to use different descriptions for insn scheduling and
template generation on reorganization pass after each insn scheduled
EBB.  Therefore I need the following patch.

Vlad

2002-09-18  Vladimir Makarov  <vmakarov@redhat.com>

        * genattr.c (main): Add output of prototype of new interface
        function `dfa_clean_insn_cache'.

        * genautomata.c (output_dfa_clean_insn_cache_func): New
function.
        (DFA_CLEAN_INSN_CACHE_FUNC_NAME): New macro.
        (output_dfa_start_func): Use function `dfa_clean_insn_cache' in
        the generated code.
        (write_automata): Call the new function.
        
Index: genattr.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/genattr.c,v
retrieving revision 1.51
diff -c -p -r1.51 genattr.c
*** genattr.c   14 May 2002 00:15:51 -0000      1.51
--- genattr.c   18 Sep 2002 21:13:01 -0000
*************** main (argc, argv)
*** 439,444 ****
--- 439,449 ----
        printf ("   unit with given code is currently reserved in
given\n");
        printf ("   DFA state.  */\n");
        printf ("extern int cpu_unit_reservation_p PARAMS ((state_t,
int));\n");
+       printf ("/* Clean insn code cache.  It should be called if
there\n");
+       printf ("   is a chance that condition value in a\n");
+       printf ("   define_insn_reservation will be changed after\n");
+       printf ("   last call of dfa_start.  */\n");
+       printf ("extern void dfa_clean_insn_cache PARAMS
((void));\n\n");
        printf ("#endif\n\n");
        printf ("/* Initiate and finish work with DFA.  They should
be\n");
        printf ("   called as the first and the last interface\n");
Index: genautomata.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/genautomata.c,v
retrieving revision 1.24
diff -c -p -r1.24 genautomata.c
*** genautomata.c       21 Aug 2002 23:24:10 -0000      1.24
--- genautomata.c       18 Sep 2002 21:13:02 -0000
*************** static int units_cmp                            PARAMS
((
*** 481,486 ****
--- 481,487 ----
                                                         const void *));
  static void output_get_cpu_unit_code_func       PARAMS ((void));
  static void output_cpu_unit_reservation_p       PARAMS ((void));
+ static void output_dfa_clean_insn_cache_func    PARAMS ((void));
  static void output_dfa_start_func             PARAMS ((void));
  static void output_dfa_finish_func            PARAMS ((void));
  
*************** output_reserved_units_table_name (f, aut
*** 7165,7170 ****
--- 7166,7173 ----
  
  #define CPU_UNIT_RESERVATION_P_FUNC_NAME "cpu_unit_reservation_p"
  
+ #define DFA_CLEAN_INSN_CACHE_FUNC_NAME  "dfa_clean_insn_cache"
+ 
  #define DFA_START_FUNC_NAME  "dfa_start"
  
  #define DFA_FINISH_FUNC_NAME "dfa_finish"
*************** output_cpu_unit_reservation_p ()
*** 8744,8759 ****
    fprintf (output_file, "  return 0;\n}\n\n");
  }
  
! /* The function outputs PHR interface function `dfa_start'.  */
  static void
! output_dfa_start_func ()
  {
    fprintf (output_file,
!          "void\n%s ()\n{\n  int %s;\n\n  %s = get_max_uid ();\n",
!          DFA_START_FUNC_NAME, I_VARIABLE_NAME,
!          DFA_INSN_CODES_LENGTH_VARIABLE_NAME);
!   fprintf (output_file, "  %s = (int *) xmalloc (%s * sizeof
(int));\n",
!          DFA_INSN_CODES_VARIABLE_NAME,
DFA_INSN_CODES_LENGTH_VARIABLE_NAME);
    fprintf (output_file,
           "  for (%s = 0; %s < %s; %s++)\n    %s [%s] = -1;\n}\n\n",
           I_VARIABLE_NAME, I_VARIABLE_NAME,
--- 8747,8759 ----
    fprintf (output_file, "  return 0;\n}\n\n");
  }
  
! /* The function outputs PHR interface function
`dfa_clean_insn_cache'.  */
  static void
! output_dfa_clean_insn_cache_func ()
  {
    fprintf (output_file,
!          "void\n%s ()\n{\n  int %s;\n\n",
!          DFA_CLEAN_INSN_CACHE_FUNC_NAME, I_VARIABLE_NAME);
    fprintf (output_file,
           "  for (%s = 0; %s < %s; %s++)\n    %s [%s] = -1;\n}\n\n",
           I_VARIABLE_NAME, I_VARIABLE_NAME,
*************** output_dfa_start_func ()
*** 8761,8766 ****
--- 8761,8778 ----
           DFA_INSN_CODES_VARIABLE_NAME, I_VARIABLE_NAME);
  }
  
+ /* The function outputs PHR interface function `dfa_start'.  */
+ static void
+ output_dfa_start_func ()
+ {
+   fprintf (output_file,
+          "void\n%s ()\n{\n  %s = get_max_uid ();\n",
+          DFA_START_FUNC_NAME, DFA_INSN_CODES_LENGTH_VARIABLE_NAME);
+   fprintf (output_file, "  %s = (int *) xmalloc (%s * sizeof
(int));\n",
+          DFA_INSN_CODES_VARIABLE_NAME,
DFA_INSN_CODES_LENGTH_VARIABLE_NAME);
+   fprintf (output_file, "  %s ();\n}\n\n",
DFA_CLEAN_INSN_CACHE_FUNC_NAME);
+ }
+ 
  /* The function outputs PHR interface function `dfa_finish'.  */
  static void
  output_dfa_finish_func ()
*************** write_automata ()
*** 9689,9694 ****
--- 9701,9707 ----
        fprintf (output_file, "\n#endif /* #if %s */\n\n",
               CPU_UNITS_QUERY_MACRO_NAME);
      }
+   output_dfa_clean_insn_cache_func ();
    output_dfa_start_func ();
    output_dfa_finish_func ();
    fprintf (stderr, "done\n");