Dump final-most gimple (with ssa) using the plugin option‏‏

[karthik duraisami <kdconstant@xxxxxxxxxxx>]

Hi,

I am trying to dump the final-most gimple (in ssa) file. My understanding is that lto encodes GIMPLE IR in the bytestream of the object files and accordingly I invoke PLUGIN_PASS_MANAGER_SETUP to embed my faux dummy pass after 'pass_ipa_lto_finish_out'. Is ssa information available at the 'all_lto_gen_passes' stage?
Also, should I check for other properties (PROP_trees) and should I bother with TODO_cleanup_cfg?

Error message:
cc1: fatal error: pass ‘ipa_lto_gimple_out’ not found but is referenced by new pass ‘gimpleSSA_out’

Any help would be greatly appreciated.

Thank you.

Regards,
Karthik

-----------------------------------####################-----------------------------------
-----------------------------------####################-----------------------------------
#include "gcc-plugin.h"

#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tree.h"
#include "intl.h"
#include "tm.h"

#include "gimple.h"
#include "tree-pass.h"
#include <string.h>

int plugin_is_GPL_compatible;

struct ipa_opt_pass_d pass_dump_GSSA =
 {
  {
   IPA_PASS,
   "gimpleSSA_out",        /* name */
   NULL,                           /* gate */
   NULL,                           /* execute */
   NULL,                           /* sub */
   NULL,                           /* next */
   0,                                   /* static_pass_number - a nonzero static_pass_number
                                              indicates that the pass is already in the list. */
   0,                                   /* tv_id */
   PROP_ssa,                    /* properties_required */
   0,                                   /* properties_provided */
   0,                                   /* properties_destroyed */
   0,                                   /* todo_flags_start */
    TODO_update_ssa_any
   | TODO_dump_func      /* todo_flags_finish */
  },
  NULL,                            /* generate_summary */
  NULL,                            /* write_summary */
  NULL,                            /* read_summary */
  NULL,                            /* function_read_summary */
  NULL,                            /* stmt_fixup */
  0,                                    /* TODOs */
  NULL,                            /* function_transform */
  NULL                             /* variable_transform */
 };


int
plugin_init (struct plugin_name_args *plugin_info,
             struct plugin_gcc_version *version)
{
  /* if (!plugin_default_version_check (version, &gcc_version))
    return 1; */
  struct register_pass_info pass_info;
  const char *plugin_name = plugin_info->base_name;
  int argc = plugin_info->argc;
  struct plugin_argument *argv = plugin_info->argv;
 
  pass_info.pass = &pass_dump_GSSA.pass;
  pass_info.reference_pass_name = "ipa_lto_gimple_out";

  /*Do it for every instance if it is 0. */
  pass_info.ref_pass_instance_number = 0;

  /* This pass can go almost anywhere as long as you're in SSA form */
  pass_info.pos_op = PASS_POS_INSERT_AFTER;
 
  /* Register this new pass with GCC */
  register_callback (plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL,
                     &pass_info);
 
  /* Register the user attribute */
  /*register_callback (plugin_name, PLUGIN_ATTRIBUTES, register_attributes, NULL); */
 
  return 0;
}

-----------------------------------####################-----------------------------------
-----------------------------------####################-----------------------------------

GCC=/usr/local/bin/gcc-4.5
PLUGIN_SOURCE_FILES= plugin_dumpGimpleSSA.c
PLUGIN_OBJECT_FILES= $(patsubst %.c,%.o,$(PLUGIN_SOURCE_FILES))
GCCPLUGINS_DIR:= $(shell $(GCC) -print-file-name=plugin)
CFLAGS+= -I$(GCCPLUGINS_DIR)/include -fPIC -O2

dumpGimpleSSA_plugin.so: $(PLUGIN_OBJECT_FILES)
    $(GCC) -shared $^ -o $@

 -----------------------------------####################-----------------------------------

/usr/local/bin/gcc-4.5 -v -O2 -o prova -fdump-tree-all -fplugin=/home/karthik/Temp/dumpGimpleSSA_plugin.so ../../prova.c

 -----------------------------------####################-----------------------------------

 		 	   		  
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