| /* Output routines for graphical representation. |
| Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004 |
| Free Software Foundation, Inc. |
| Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. |
| |
| This file is part of GCC. |
| |
| GCC is free software; you can redistribute it and/or modify it under |
| the terms of the GNU General Public License as published by the Free |
| Software Foundation; either version 2, or (at your option) any later |
| version. |
| |
| GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
| WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GCC; see the file COPYING. If not, write to the Free |
| Software Foundation, 59 Temple Place - Suite 330, Boston, MA |
| 02111-1307, USA. */ |
| |
| #include <config.h> |
| #include "system.h" |
| #include "coretypes.h" |
| #include "tm.h" |
| |
| #include "rtl.h" |
| #include "flags.h" |
| #include "output.h" |
| #include "function.h" |
| #include "hard-reg-set.h" |
| #include "basic-block.h" |
| #include "toplev.h" |
| #include "graph.h" |
| |
| static const char *const graph_ext[] = |
| { |
| /* no_graph */ "", |
| /* vcg */ ".vcg", |
| }; |
| |
| static void start_fct (FILE *); |
| static void start_bb (FILE *, int); |
| static void node_data (FILE *, rtx); |
| static void draw_edge (FILE *, int, int, int, int); |
| static void end_fct (FILE *); |
| static void end_bb (FILE *); |
| |
| /* Output text for new basic block. */ |
| static void |
| start_fct (FILE *fp) |
| { |
| switch (graph_dump_format) |
| { |
| case vcg: |
| fprintf (fp, "\ |
| graph: { title: \"%s\"\nfolding: 1\nhidden: 2\nnode: { title: \"%s.0\" }\n", |
| current_function_name (), current_function_name ()); |
| break; |
| case no_graph: |
| break; |
| } |
| } |
| |
| static void |
| start_bb (FILE *fp, int bb) |
| { |
| switch (graph_dump_format) |
| { |
| case vcg: |
| fprintf (fp, "\ |
| graph: {\ntitle: \"%s.BB%d\"\nfolding: 1\ncolor: lightblue\n\ |
| label: \"basic block %d", |
| current_function_name (), bb, bb); |
| break; |
| case no_graph: |
| break; |
| } |
| |
| #if 0 |
| /* FIXME Should this be printed? It makes the graph significantly larger. */ |
| |
| /* Print the live-at-start register list. */ |
| fputc ('\n', fp); |
| EXECUTE_IF_SET_IN_REG_SET (basic_block_live_at_start[bb], 0, i, |
| { |
| fprintf (fp, " %d", i); |
| if (i < FIRST_PSEUDO_REGISTER) |
| fprintf (fp, " [%s]", |
| reg_names[i]); |
| }); |
| #endif |
| |
| switch (graph_dump_format) |
| { |
| case vcg: |
| fputs ("\"\n\n", fp); |
| break; |
| case no_graph: |
| break; |
| } |
| } |
| |
| static void |
| node_data (FILE *fp, rtx tmp_rtx) |
| { |
| if (PREV_INSN (tmp_rtx) == 0) |
| { |
| /* This is the first instruction. Add an edge from the starting |
| block. */ |
| switch (graph_dump_format) |
| { |
| case vcg: |
| fprintf (fp, "\ |
| edge: { sourcename: \"%s.0\" targetname: \"%s.%d\" }\n", |
| current_function_name (), |
| current_function_name (), XINT (tmp_rtx, 0)); |
| break; |
| case no_graph: |
| break; |
| } |
| } |
| |
| switch (graph_dump_format) |
| { |
| case vcg: |
| fprintf (fp, "node: {\n title: \"%s.%d\"\n color: %s\n \ |
| label: \"%s %d\n", |
| current_function_name (), XINT (tmp_rtx, 0), |
| GET_CODE (tmp_rtx) == NOTE ? "lightgrey" |
| : GET_CODE (tmp_rtx) == INSN ? "green" |
| : GET_CODE (tmp_rtx) == JUMP_INSN ? "darkgreen" |
| : GET_CODE (tmp_rtx) == CALL_INSN ? "darkgreen" |
| : GET_CODE (tmp_rtx) == CODE_LABEL ? "\ |
| darkgrey\n shape: ellipse" : "white", |
| GET_RTX_NAME (GET_CODE (tmp_rtx)), XINT (tmp_rtx, 0)); |
| break; |
| case no_graph: |
| break; |
| } |
| |
| /* Print the RTL. */ |
| if (GET_CODE (tmp_rtx) == NOTE) |
| { |
| const char *name = ""; |
| if (NOTE_LINE_NUMBER (tmp_rtx) < 0) |
| name = GET_NOTE_INSN_NAME (NOTE_LINE_NUMBER (tmp_rtx)); |
| fprintf (fp, " %s", name); |
| } |
| else if (INSN_P (tmp_rtx)) |
| print_rtl_single (fp, PATTERN (tmp_rtx)); |
| else |
| print_rtl_single (fp, tmp_rtx); |
| |
| switch (graph_dump_format) |
| { |
| case vcg: |
| fputs ("\"\n}\n", fp); |
| break; |
| case no_graph: |
| break; |
| } |
| } |
| |
| static void |
| draw_edge (FILE *fp, int from, int to, int bb_edge, int class) |
| { |
| const char * color; |
| switch (graph_dump_format) |
| { |
| case vcg: |
| color = ""; |
| if (class == 2) |
| color = "color: red "; |
| else if (bb_edge) |
| color = "color: blue "; |
| else if (class == 3) |
| color = "color: green "; |
| fprintf (fp, |
| "edge: { sourcename: \"%s.%d\" targetname: \"%s.%d\" %s", |
| current_function_name (), from, |
| current_function_name (), to, color); |
| if (class) |
| fprintf (fp, "class: %d ", class); |
| fputs ("}\n", fp); |
| break; |
| case no_graph: |
| break; |
| } |
| } |
| |
| static void |
| end_bb (FILE *fp) |
| { |
| switch (graph_dump_format) |
| { |
| case vcg: |
| fputs ("}\n", fp); |
| break; |
| case no_graph: |
| break; |
| } |
| } |
| |
| static void |
| end_fct (FILE *fp) |
| { |
| switch (graph_dump_format) |
| { |
| case vcg: |
| fprintf (fp, "node: { title: \"%s.999999\" label: \"END\" }\n}\n", |
| current_function_name ()); |
| break; |
| case no_graph: |
| break; |
| } |
| } |
| |
| /* Like print_rtl, but also print out live information for the start of each |
| basic block. */ |
| void |
| print_rtl_graph_with_bb (const char *base, const char *suffix, rtx rtx_first) |
| { |
| rtx tmp_rtx; |
| size_t namelen = strlen (base); |
| size_t suffixlen = strlen (suffix); |
| size_t extlen = strlen (graph_ext[graph_dump_format]) + 1; |
| char *buf = alloca (namelen + suffixlen + extlen); |
| FILE *fp; |
| |
| if (basic_block_info == NULL) |
| return; |
| |
| memcpy (buf, base, namelen); |
| memcpy (buf + namelen, suffix, suffixlen); |
| memcpy (buf + namelen + suffixlen, graph_ext[graph_dump_format], extlen); |
| |
| fp = fopen (buf, "a"); |
| if (fp == NULL) |
| return; |
| |
| if (rtx_first == 0) |
| fprintf (fp, "(nil)\n"); |
| else |
| { |
| enum bb_state { NOT_IN_BB, IN_ONE_BB, IN_MULTIPLE_BB }; |
| int max_uid = get_max_uid (); |
| int *start = xmalloc (max_uid * sizeof (int)); |
| int *end = xmalloc (max_uid * sizeof (int)); |
| enum bb_state *in_bb_p = xmalloc (max_uid * sizeof (enum bb_state)); |
| basic_block bb; |
| int i; |
| |
| for (i = 0; i < max_uid; ++i) |
| { |
| start[i] = end[i] = -1; |
| in_bb_p[i] = NOT_IN_BB; |
| } |
| |
| FOR_EACH_BB_REVERSE (bb) |
| { |
| rtx x; |
| start[INSN_UID (BB_HEAD (bb))] = bb->index; |
| end[INSN_UID (BB_END (bb))] = bb->index; |
| for (x = BB_HEAD (bb); x != NULL_RTX; x = NEXT_INSN (x)) |
| { |
| in_bb_p[INSN_UID (x)] |
| = (in_bb_p[INSN_UID (x)] == NOT_IN_BB) |
| ? IN_ONE_BB : IN_MULTIPLE_BB; |
| if (x == BB_END (bb)) |
| break; |
| } |
| } |
| |
| /* Tell print-rtl that we want graph output. */ |
| dump_for_graph = 1; |
| |
| /* Start new function. */ |
| start_fct (fp); |
| |
| for (tmp_rtx = NEXT_INSN (rtx_first); NULL != tmp_rtx; |
| tmp_rtx = NEXT_INSN (tmp_rtx)) |
| { |
| int edge_printed = 0; |
| rtx next_insn; |
| |
| if (start[INSN_UID (tmp_rtx)] < 0 && end[INSN_UID (tmp_rtx)] < 0) |
| { |
| if (GET_CODE (tmp_rtx) == BARRIER) |
| continue; |
| if (GET_CODE (tmp_rtx) == NOTE |
| && (1 || in_bb_p[INSN_UID (tmp_rtx)] == NOT_IN_BB)) |
| continue; |
| } |
| |
| if ((i = start[INSN_UID (tmp_rtx)]) >= 0) |
| { |
| /* We start a subgraph for each basic block. */ |
| start_bb (fp, i); |
| |
| if (i == 0) |
| draw_edge (fp, 0, INSN_UID (tmp_rtx), 1, 0); |
| } |
| |
| /* Print the data for this node. */ |
| node_data (fp, tmp_rtx); |
| next_insn = next_nonnote_insn (tmp_rtx); |
| |
| if ((i = end[INSN_UID (tmp_rtx)]) >= 0) |
| { |
| edge e; |
| |
| bb = BASIC_BLOCK (i); |
| |
| /* End of the basic block. */ |
| end_bb (fp); |
| |
| /* Now specify the edges to all the successors of this |
| basic block. */ |
| for (e = bb->succ; e ; e = e->succ_next) |
| { |
| if (e->dest != EXIT_BLOCK_PTR) |
| { |
| rtx block_head = BB_HEAD (e->dest); |
| |
| draw_edge (fp, INSN_UID (tmp_rtx), |
| INSN_UID (block_head), |
| next_insn != block_head, |
| (e->flags & EDGE_ABNORMAL ? 2 : 0)); |
| |
| if (block_head == next_insn) |
| edge_printed = 1; |
| } |
| else |
| { |
| draw_edge (fp, INSN_UID (tmp_rtx), 999999, |
| next_insn != 0, |
| (e->flags & EDGE_ABNORMAL ? 2 : 0)); |
| |
| if (next_insn == 0) |
| edge_printed = 1; |
| } |
| } |
| } |
| |
| if (!edge_printed) |
| { |
| /* Don't print edges to barriers. */ |
| if (next_insn == 0 |
| || GET_CODE (next_insn) != BARRIER) |
| draw_edge (fp, XINT (tmp_rtx, 0), |
| next_insn ? INSN_UID (next_insn) : 999999, 0, 0); |
| else |
| { |
| /* We draw the remaining edges in class 3. We have |
| to skip over the barrier since these nodes are |
| not printed at all. */ |
| do |
| next_insn = NEXT_INSN (next_insn); |
| while (next_insn |
| && (GET_CODE (next_insn) == NOTE |
| || GET_CODE (next_insn) == BARRIER)); |
| |
| draw_edge (fp, XINT (tmp_rtx, 0), |
| next_insn ? INSN_UID (next_insn) : 999999, 0, 3); |
| } |
| } |
| } |
| |
| dump_for_graph = 0; |
| |
| end_fct (fp); |
| |
| /* Clean up. */ |
| free (start); |
| free (end); |
| free (in_bb_p); |
| } |
| |
| fclose (fp); |
| } |
| |
| |
| /* Similar as clean_dump_file, but this time for graph output files. */ |
| |
| void |
| clean_graph_dump_file (const char *base, const char *suffix) |
| { |
| size_t namelen = strlen (base); |
| size_t suffixlen = strlen (suffix); |
| size_t extlen = strlen (graph_ext[graph_dump_format]) + 1; |
| char *buf = alloca (namelen + extlen + suffixlen); |
| FILE *fp; |
| |
| memcpy (buf, base, namelen); |
| memcpy (buf + namelen, suffix, suffixlen); |
| memcpy (buf + namelen + suffixlen, graph_ext[graph_dump_format], extlen); |
| |
| fp = fopen (buf, "w"); |
| |
| if (fp == NULL) |
| fatal_error ("can't open %s: %m", buf); |
| |
| switch (graph_dump_format) |
| { |
| case vcg: |
| fputs ("graph: {\nport_sharing: no\n", fp); |
| break; |
| case no_graph: |
| abort (); |
| } |
| |
| fclose (fp); |
| } |
| |
| |
| /* Do final work on the graph output file. */ |
| void |
| finish_graph_dump_file (const char *base, const char *suffix) |
| { |
| size_t namelen = strlen (base); |
| size_t suffixlen = strlen (suffix); |
| size_t extlen = strlen (graph_ext[graph_dump_format]) + 1; |
| char *buf = alloca (namelen + suffixlen + extlen); |
| FILE *fp; |
| |
| memcpy (buf, base, namelen); |
| memcpy (buf + namelen, suffix, suffixlen); |
| memcpy (buf + namelen + suffixlen, graph_ext[graph_dump_format], extlen); |
| |
| fp = fopen (buf, "a"); |
| if (fp != NULL) |
| { |
| switch (graph_dump_format) |
| { |
| case vcg: |
| fputs ("}\n", fp); |
| break; |
| case no_graph: |
| abort (); |
| } |
| |
| fclose (fp); |
| } |
| } |