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dumpfile.h revision 1.6
      1 /* Definitions for the shared dumpfile.
      2    Copyright (C) 2004-2017 Free Software Foundation, Inc.
      3 
      4 This file is part of GCC.
      5 
      6 GCC is free software; you can redistribute it and/or modify
      7 it under the terms of the GNU General Public License as published by
      8 the Free Software Foundation; either version 3, or (at your option)
      9 any later version.
     10 
     11 GCC is distributed in the hope that it will be useful,
     12 but WITHOUT ANY WARRANTY; without even the implied warranty of
     13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     14 GNU General Public License for more details.
     15 
     16 You should have received a copy of the GNU General Public License
     17 along with GCC; see the file COPYING3.  If not see
     18 <http://www.gnu.org/licenses/>.  */
     19 
     20 
     21 #ifndef GCC_DUMPFILE_H
     22 #define GCC_DUMPFILE_H 1
     23 
     24 
     25 /* Different tree dump places.  When you add new tree dump places,
     26    extend the DUMP_FILES array in dumpfile.c.  */
     27 enum tree_dump_index
     28 {
     29   TDI_none,			/* No dump */
     30   TDI_cgraph,                   /* dump function call graph.  */
     31   TDI_inheritance,              /* dump type inheritance graph.  */
     32   TDI_clones,			/* dump IPA cloning decisions.  */
     33   TDI_tu,			/* dump the whole translation unit.  */
     34   TDI_class,			/* dump class hierarchy.  */
     35   TDI_original,			/* dump each function before optimizing it */
     36   TDI_generic,			/* dump each function after genericizing it */
     37   TDI_nested,			/* dump each function after unnesting it */
     38   TDI_tree_all,                 /* enable all the GENERIC/GIMPLE dumps.  */
     39   TDI_rtl_all,                  /* enable all the RTL dumps.  */
     40   TDI_ipa_all,                  /* enable all the IPA dumps.  */
     41 
     42   TDI_end
     43 };
     44 
     45 /* Bit masks to control dumping. Not all values are applicable to all
     46    dumps. Add new ones at the end. When you define new values, extend
     47    the DUMP_OPTIONS array in dumpfile.c. The TDF_* flags coexist with
     48    MSG_* flags (for -fopt-info) and the bit values must be chosen to
     49    allow that.  */
     50 #define TDF_ADDRESS	(1 << 0)	/* dump node addresses */
     51 #define TDF_SLIM	(1 << 1)	/* don't go wild following links */
     52 #define TDF_RAW  	(1 << 2)	/* don't unparse the function */
     53 #define TDF_DETAILS	(1 << 3)	/* show more detailed info about
     54 					   each pass */
     55 #define TDF_STATS	(1 << 4)	/* dump various statistics about
     56 					   each pass */
     57 #define TDF_BLOCKS	(1 << 5)	/* display basic block boundaries */
     58 #define TDF_VOPS	(1 << 6)	/* display virtual operands */
     59 #define TDF_LINENO	(1 << 7)	/* display statement line numbers */
     60 #define TDF_UID		(1 << 8)	/* display decl UIDs */
     61 
     62 #define TDF_TREE	(1 << 9)	/* is a tree dump */
     63 #define TDF_RTL		(1 << 10)	/* is a RTL dump */
     64 #define TDF_IPA		(1 << 11)	/* is an IPA dump */
     65 #define TDF_STMTADDR	(1 << 12)	/* Address of stmt.  */
     66 
     67 #define TDF_GRAPH	(1 << 13)	/* a graph dump is being emitted */
     68 #define TDF_MEMSYMS	(1 << 14)	/* display memory symbols in expr.
     69                                            Implies TDF_VOPS.  */
     70 
     71 #define TDF_DIAGNOSTIC	(1 << 15)	/* A dump to be put in a diagnostic
     72 					   message.  */
     73 #define TDF_VERBOSE     (1 << 16)       /* A dump that uses the full tree
     74 					   dumper to print stmts.  */
     75 #define TDF_RHS_ONLY	(1 << 17)	/* a flag to only print the RHS of
     76 					   a gimple stmt.  */
     77 #define TDF_ASMNAME	(1 << 18)	/* display asm names of decls  */
     78 #define TDF_EH		(1 << 19)	/* display EH region number
     79 					   holding this gimple statement.  */
     80 #define TDF_NOUID	(1 << 20)	/* omit UIDs from dumps.  */
     81 #define TDF_ALIAS	(1 << 21)	/* display alias information  */
     82 #define TDF_ENUMERATE_LOCALS (1 << 22)	/* Enumerate locals by uid.  */
     83 #define TDF_CSELIB	(1 << 23)	/* Dump cselib details.  */
     84 #define TDF_SCEV	(1 << 24)	/* Dump SCEV details.  */
     85 #define TDF_COMMENT	(1 << 25)	/* Dump lines with prefix ";;"  */
     86 #define TDF_GIMPLE	(1 << 26)	/* Dump in GIMPLE FE syntax  */
     87 #define MSG_OPTIMIZED_LOCATIONS  (1 << 27)  /* -fopt-info optimized sources */
     88 #define MSG_MISSED_OPTIMIZATION  (1 << 28)  /* missed opportunities */
     89 #define MSG_NOTE                 (1 << 29)  /* general optimization info */
     90 #define MSG_ALL         (MSG_OPTIMIZED_LOCATIONS | MSG_MISSED_OPTIMIZATION \
     91                          | MSG_NOTE)
     92 
     93 
     94 /* Flags to control high-level -fopt-info dumps.  Usually these flags
     95    define a group of passes.  An optimization pass can be part of
     96    multiple groups.  */
     97 #define OPTGROUP_NONE        (0)
     98 #define OPTGROUP_IPA         (1 << 1)   /* IPA optimization passes */
     99 #define OPTGROUP_LOOP        (1 << 2)   /* Loop optimization passes */
    100 #define OPTGROUP_INLINE      (1 << 3)   /* Inlining passes */
    101 #define OPTGROUP_OMP         (1 << 4)   /* OMP (Offloading and Multi
    102 					   Processing) transformations */
    103 #define OPTGROUP_VEC         (1 << 5)   /* Vectorization passes */
    104 #define OPTGROUP_OTHER       (1 << 6)   /* All other passes */
    105 #define OPTGROUP_ALL	     (OPTGROUP_IPA | OPTGROUP_LOOP | OPTGROUP_INLINE \
    106                               | OPTGROUP_OMP | OPTGROUP_VEC | OPTGROUP_OTHER)
    107 
    108 /* Define a tree dump switch.  */
    109 struct dump_file_info
    110 {
    111   const char *suffix;           /* suffix to give output file.  */
    112   const char *swtch;            /* command line dump switch */
    113   const char *glob;             /* command line glob  */
    114   const char *pfilename;        /* filename for the pass-specific stream  */
    115   const char *alt_filename;     /* filename for the -fopt-info stream  */
    116   FILE *pstream;                /* pass-specific dump stream  */
    117   FILE *alt_stream;             /* -fopt-info stream */
    118   int pflags;                   /* dump flags */
    119   int optgroup_flags;           /* optgroup flags for -fopt-info */
    120   int alt_flags;                /* flags for opt-info */
    121   int pstate;                   /* state of pass-specific stream */
    122   int alt_state;                /* state of the -fopt-info stream */
    123   int num;                      /* dump file number */
    124   bool owns_strings;            /* fields "suffix", "swtch", "glob" can be
    125 				   const strings, or can be dynamically
    126 				   allocated, needing free.  */
    127   bool graph_dump_initialized;  /* When a given dump file is being initialized,
    128 				   this flag is set to true if the corresponding
    129 				   TDF_graph dump file has also been
    130 				   initialized.  */
    131 };
    132 
    133 /* In dumpfile.c */
    134 extern FILE *dump_begin (int, int *);
    135 extern void dump_end (int, FILE *);
    136 extern int opt_info_switch_p (const char *);
    137 extern const char *dump_flag_name (int);
    138 extern void dump_printf (int, const char *, ...) ATTRIBUTE_PRINTF_2;
    139 extern void dump_printf_loc (int, source_location,
    140                              const char *, ...) ATTRIBUTE_PRINTF_3;
    141 extern void dump_basic_block (int, basic_block, int);
    142 extern void dump_generic_expr_loc (int, source_location, int, tree);
    143 extern void dump_generic_expr (int, int, tree);
    144 extern void dump_gimple_stmt_loc (int, source_location, int, gimple *, int);
    145 extern void dump_gimple_stmt (int, int, gimple *, int);
    146 extern void print_combine_total_stats (void);
    147 extern bool enable_rtl_dump_file (void);
    148 
    149 /* In tree-dump.c  */
    150 extern void dump_node (const_tree, int, FILE *);
    151 
    152 /* In combine.c  */
    153 extern void dump_combine_total_stats (FILE *);
    154 /* In cfghooks.c  */
    155 extern void dump_bb (FILE *, basic_block, int, int);
    156 
    157 /* Global variables used to communicate with passes.  */
    158 extern FILE *dump_file;
    159 extern FILE *alt_dump_file;
    160 extern int dump_flags;
    161 extern const char *dump_file_name;
    162 
    163 /* Return true if any of the dumps is enabled, false otherwise. */
    164 static inline bool
    165 dump_enabled_p (void)
    166 {
    167   return (dump_file || alt_dump_file);
    168 }
    169 
    170 namespace gcc {
    171 
    172 class dump_manager
    173 {
    174 public:
    175 
    176   dump_manager ();
    177   ~dump_manager ();
    178 
    179   /* Register a dumpfile.
    180 
    181      TAKE_OWNERSHIP determines whether callee takes ownership of strings
    182      SUFFIX, SWTCH, and GLOB. */
    183   unsigned int
    184   dump_register (const char *suffix, const char *swtch, const char *glob,
    185 		 int flags, int optgroup_flags,
    186 		 bool take_ownership);
    187 
    188   /* Return the dump_file_info for the given phase.  */
    189   struct dump_file_info *
    190   get_dump_file_info (int phase) const;
    191 
    192   struct dump_file_info *
    193   get_dump_file_info_by_switch (const char *swtch) const;
    194 
    195   /* Return the name of the dump file for the given phase.
    196      If the dump is not enabled, returns NULL.  */
    197   char *
    198   get_dump_file_name (int phase) const;
    199 
    200   char *
    201   get_dump_file_name (struct dump_file_info *dfi) const;
    202 
    203   int
    204   dump_switch_p (const char *arg);
    205 
    206   /* Start a dump for PHASE. Store user-supplied dump flags in
    207      *FLAG_PTR.  Return the number of streams opened.  Set globals
    208      DUMP_FILE, and ALT_DUMP_FILE to point to the opened streams, and
    209      set dump_flags appropriately for both pass dump stream and
    210      -fopt-info stream. */
    211   int
    212   dump_start (int phase, int *flag_ptr);
    213 
    214   /* Finish a tree dump for PHASE and close associated dump streams.  Also
    215      reset the globals DUMP_FILE, ALT_DUMP_FILE, and DUMP_FLAGS.  */
    216   void
    217   dump_finish (int phase);
    218 
    219   FILE *
    220   dump_begin (int phase, int *flag_ptr);
    221 
    222   /* Returns nonzero if tree dump PHASE has been initialized.  */
    223   int
    224   dump_initialized_p (int phase) const;
    225 
    226   /* Returns the switch name of PHASE.  */
    227   const char *
    228   dump_flag_name (int phase) const;
    229 
    230 private:
    231 
    232   int
    233   dump_phase_enabled_p (int phase) const;
    234 
    235   int
    236   dump_switch_p_1 (const char *arg, struct dump_file_info *dfi, bool doglob);
    237 
    238   int
    239   dump_enable_all (int flags, const char *filename);
    240 
    241   int
    242   opt_info_enable_passes (int optgroup_flags, int flags, const char *filename);
    243 
    244 private:
    245 
    246   /* Dynamically registered dump files and switches.  */
    247   int m_next_dump;
    248   struct dump_file_info *m_extra_dump_files;
    249   size_t m_extra_dump_files_in_use;
    250   size_t m_extra_dump_files_alloced;
    251 
    252   /* Grant access to dump_enable_all.  */
    253   friend bool ::enable_rtl_dump_file (void);
    254 
    255   /* Grant access to opt_info_enable_passes.  */
    256   friend int ::opt_info_switch_p (const char *arg);
    257 
    258 }; // class dump_manager
    259 
    260 } // namespace gcc
    261 
    262 #endif /* GCC_DUMPFILE_H */
    263