02111-1307, USA. */
-#include "hconfig.h"
+#include "bconfig.h"
#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
#include "rtl.h"
#include "errors.h"
#include "gensupport.h"
gen_attr (attr)
rtx attr;
{
- const char *p;
+ const char *p, *tag;
int is_const = GET_CODE (XEXP (attr, 2)) == CONST;
printf ("#define HAVE_ATTR_%s\n", XSTR (attr, 0));
/* If numeric attribute, don't need to write an enum. */
- if (*XSTR (attr, 1) == '\0')
+ p = XSTR (attr, 1);
+ if (*p == '\0')
printf ("extern int get_attr_%s PARAMS ((%s));\n", XSTR (attr, 0),
(is_const ? "void" : "rtx"));
else
{
printf ("enum attr_%s {", XSTR (attr, 0));
- write_upcase (XSTR (attr, 0));
- printf ("_");
- for (p = XSTR (attr, 1); *p != '\0'; p++)
+ while ((tag = scan_comma_elt (&p)) != 0)
{
+ write_upcase (XSTR (attr, 0));
+ putchar ('_');
+ while (tag != p)
+ putchar (TOUPPER (*tag++));
if (*p == ',')
- {
- printf (", ");
- write_upcase (XSTR (attr, 0));
- printf ("_");
- }
- else
- putchar (TOUPPER(*p));
+ fputs (", ", stdout);
}
- printf ("};\n");
+ fputs ("};\n", stdout);
printf ("extern enum attr_%s get_attr_%s PARAMS ((%s));\n\n",
XSTR (attr, 0), XSTR (attr, 0), (is_const ? "void" : "rtx"));
}
variables used by `insn_current_length'. */
if (! strcmp (XSTR (attr, 0), "length"))
{
- printf ("extern void shorten_branches PARAMS ((rtx));\n");
- printf ("extern int insn_default_length PARAMS ((rtx));\n");
- printf ("extern int insn_variable_length_p PARAMS ((rtx));\n");
- printf ("extern int insn_current_length PARAMS ((rtx));\n\n");
- printf ("#include \"insn-addr.h\"\n\n");
+ puts ("\
+extern void shorten_branches PARAMS ((rtx));\n\
+extern int insn_default_length PARAMS ((rtx));\n\
+extern int insn_variable_length_p PARAMS ((rtx));\n\
+extern int insn_current_length PARAMS ((rtx));\n\n\
+#include \"insn-addr.h\"\n");
}
}
printf ("#define INSN_SCHEDULING\n\n");
printf ("extern int result_ready_cost PARAMS ((rtx));\n");
printf ("extern int function_units_used PARAMS ((rtx));\n\n");
- printf ("extern struct function_unit_desc\n");
+ printf ("extern const struct function_unit_desc\n");
printf ("{\n");
- printf (" const char *name;\n");
- printf (" int bitmask;\n");
- printf (" int multiplicity;\n");
- printf (" int simultaneity;\n");
- printf (" int default_cost;\n");
- printf (" int max_issue_delay;\n");
- printf (" int (*ready_cost_function) PARAMS ((rtx));\n");
- printf (" int (*conflict_cost_function) PARAMS ((rtx, rtx));\n");
- printf (" int max_blockage;\n");
- printf (" unsigned int (*blockage_range_function) PARAMS ((rtx));\n");
- printf (" int (*blockage_function) PARAMS ((rtx, rtx));\n");
+ printf (" const char *const name;\n");
+ printf (" const int bitmask;\n");
+ printf (" const int multiplicity;\n");
+ printf (" const int simultaneity;\n");
+ printf (" const int default_cost;\n");
+ printf (" const int max_issue_delay;\n");
+ printf (" int (*const ready_cost_function) PARAMS ((rtx));\n");
+ printf (" int (*const conflict_cost_function) PARAMS ((rtx, rtx));\n");
+ printf (" const int max_blockage;\n");
+ printf (" unsigned int (*const blockage_range_function) PARAMS ((rtx));\n");
+ printf (" int (*const blockage_function) PARAMS ((rtx, rtx));\n");
printf ("} function_units[];\n\n");
printf ("#define FUNCTION_UNITS_SIZE %d\n", num_units);
printf ("#define MIN_MULTIPLICITY %d\n", multiplicity->min);
int have_delay = 0;
int have_annul_true = 0;
int have_annul_false = 0;
+ int num_insn_reservations = 0;
int num_units = 0;
struct range all_simultaneity, all_multiplicity;
struct range all_ready_cost, all_issue_delay, all_blockage;
progname = "genattr";
if (argc <= 1)
- fatal ("No input file name.");
+ fatal ("no input file name");
- if (init_md_reader (argv[1]) != SUCCESS_EXIT_CODE)
+ if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
return (FATAL_EXIT_CODE);
puts ("/* Generated automatically by the program `genattr'");
}
else if (unit->multiplicity != multiplicity
|| unit->simultaneity != simultaneity)
- fatal ("Differing specifications given for `%s' function unit.",
+ fatal ("Differing specifications given for `%s' function unit",
unit->name);
extend_range (&unit->ready_cost, ready_cost, ready_cost);
extend_range (&all_issue_delay,
unit->issue_delay.min, unit->issue_delay.max);
}
+ else if (GET_CODE (desc) == DEFINE_INSN_RESERVATION)
+ num_insn_reservations++;
}
- if (num_units > 0)
+ if (num_units > 0 || num_insn_reservations > 0)
{
+ if (num_units > 0)
+ printf ("#define TRADITIONAL_PIPELINE_INTERFACE 1\n");
+
+ if (num_insn_reservations > 0)
+ printf ("#define DFA_PIPELINE_INTERFACE 1\n");
+
/* Compute the range of blockage cost values. See genattrtab.c
for the derivation. BLOCKAGE (E,C) when SIMULTANEITY is zero is
write_units (num_units, &all_multiplicity, &all_simultaneity,
&all_ready_cost, &all_issue_delay, &all_blockage);
+
+ /* Output interface for pipeline hazards recognition based on
+ DFA (deterministic finite state automata. */
+ printf ("\n/* DFA based pipeline interface. */");
+ printf ("\n#ifndef AUTOMATON_ALTS\n");
+ printf ("#define AUTOMATON_ALTS 0\n");
+ printf ("#endif\n\n");
+ printf ("\n#ifndef AUTOMATON_STATE_ALTS\n");
+ printf ("#define AUTOMATON_STATE_ALTS 0\n");
+ printf ("#endif\n\n");
+ printf ("#ifndef CPU_UNITS_QUERY\n");
+ printf ("#define CPU_UNITS_QUERY 0\n");
+ printf ("#endif\n\n");
+ /* Interface itself: */
+ printf ("extern int max_dfa_issue_rate;\n\n");
+ printf ("/* The following macro value is calculated from the\n");
+ printf (" automaton based pipeline description and is equal to\n");
+ printf (" maximal number of all insns described in constructions\n");
+ printf (" `define_insn_reservation' which can be issued on the\n");
+ printf (" same processor cycle. */\n");
+ printf ("#define MAX_DFA_ISSUE_RATE max_dfa_issue_rate\n\n");
+ printf ("/* Insn latency time defined in define_insn_reservation. */\n");
+ printf ("extern int insn_default_latency PARAMS ((rtx));\n\n");
+ printf ("/* Return nonzero if there is a bypass for given insn\n");
+ printf (" which is a data producer. */\n");
+ printf ("extern int bypass_p PARAMS ((rtx));\n\n");
+ printf ("/* Insn latency time on data consumed by the 2nd insn.\n");
+ printf (" Use the function if bypass_p returns nonzero for\n");
+ printf (" the 1st insn. */\n");
+ printf ("extern int insn_latency PARAMS ((rtx, rtx));\n\n");
+ printf ("\n#if AUTOMATON_ALTS\n");
+ printf ("/* The following function returns number of alternative\n");
+ printf (" reservations of given insn. It may be used for better\n");
+ printf (" insns scheduling heuristics. */\n");
+ printf ("extern int insn_alts PARAMS ((rtx));\n\n");
+ printf ("#endif\n\n");
+ printf ("/* Maximal possible number of insns waiting results being\n");
+ printf (" produced by insns whose execution is not finished. */\n");
+ printf ("extern int max_insn_queue_index;\n\n");
+ printf ("/* Pointer to data describing current state of DFA. */\n");
+ printf ("typedef void *state_t;\n\n");
+ printf ("/* Size of the data in bytes. */\n");
+ printf ("extern int state_size PARAMS ((void));\n\n");
+ printf ("/* Initiate given DFA state, i.e. Set up the state\n");
+ printf (" as all functional units were not reserved. */\n");
+ printf ("extern void state_reset PARAMS ((state_t));\n");
+ printf ("/* The following function returns negative value if given\n");
+ printf (" insn can be issued in processor state described by given\n");
+ printf (" DFA state. In this case, the DFA state is changed to\n");
+ printf (" reflect the current and future reservations by given\n");
+ printf (" insn. Otherwise the function returns minimal time\n");
+ printf (" delay to issue the insn. This delay may be zero\n");
+ printf (" for superscalar or VLIW processors. If the second\n");
+ printf (" parameter is NULL the function changes given DFA state\n");
+ printf (" as new processor cycle started. */\n");
+ printf ("extern int state_transition PARAMS ((state_t, rtx));\n");
+ printf ("\n#if AUTOMATON_STATE_ALTS\n");
+ printf ("/* The following function returns number of possible\n");
+ printf (" alternative reservations of given insn in given\n");
+ printf (" DFA state. It may be used for better insns scheduling\n");
+ printf (" heuristics. By default the function is defined if\n");
+ printf (" macro AUTOMATON_STATE_ALTS is defined because its\n");
+ printf (" implementation may require much memory. */\n");
+ printf ("extern int state_alts PARAMS ((state_t, rtx));\n");
+ printf ("#endif\n\n");
+ printf ("extern int min_issue_delay PARAMS ((state_t, rtx));\n");
+ printf ("/* The following function returns nonzero if no one insn\n");
+ printf (" can be issued in current DFA state. */\n");
+ printf ("extern int state_dead_lock_p PARAMS ((state_t));\n");
+ printf ("/* The function returns minimal delay of issue of the 2nd\n");
+ printf (" insn after issuing the 1st insn in given DFA state.\n");
+ printf (" The 1st insn should be issued in given state (i.e.\n");
+ printf (" state_transition should return negative value for\n");
+ printf (" the insn and the state). Data dependencies between\n");
+ printf (" the insns are ignored by the function. */\n");
+ printf
+ ("extern int min_insn_conflict_delay PARAMS ((state_t, rtx, rtx));\n");
+ printf ("/* The following function outputs reservations for given\n");
+ printf (" insn as they are described in the corresponding\n");
+ printf (" define_insn_reservation. */\n");
+ printf ("extern void print_reservation PARAMS ((FILE *, rtx));\n");
+ printf ("\n#if CPU_UNITS_QUERY\n");
+ printf ("/* The following function returns code of functional unit\n");
+ printf (" with given name (see define_cpu_unit). */\n");
+ printf ("extern int get_cpu_unit_code PARAMS ((const char *));\n");
+ printf ("/* The following function returns nonzero if functional\n");
+ 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 ("#endif\n\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 ("/* Initiate and finish work with DFA. They should be\n");
+ printf (" called as the first and the last interface\n");
+ printf (" functions. */\n");
+ printf ("extern void dfa_start PARAMS ((void));\n");
+ printf ("extern void dfa_finish PARAMS ((void));\n");
+ }
+ else
+ {
+ /* Otherwise we do no scheduling, but we need these typedefs
+ in order to avoid uglifying other code with more ifdefs. */
+ printf ("typedef void *state_t;\n\n");
}
/* Output flag masks for use by reorg.
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