/* Print RTL for GNU C Compiler.
- Copyright (C) 1987, 1988, 1992, 1997, 1998 Free Software Foundation, Inc.
+ Copyright (C) 1987, 1988, 1992, 1997, 1998, 1999, 2000
+ Free Software Foundation, Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC 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 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.
-GNU CC 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.
+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 GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+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 "rtl.h"
-#include "bitmap.h"
#include "real.h"
#include "flags.h"
-
+#include "hard-reg-set.h"
+#include "basic-block.h"
/* How to print out a register name.
We don't use PRINT_REG because some definitions of PRINT_REG
/* Array containing all of the register names */
#ifdef DEBUG_REGISTER_NAMES
-static char *reg_names[] = DEBUG_REGISTER_NAMES;
+static const char * const debug_reg_names[] = DEBUG_REGISTER_NAMES;
+#define reg_names debug_reg_names
#else
-static char *reg_names[] = REGISTER_NAMES;
+const char * reg_names[] = REGISTER_NAMES;
#endif
static FILE *outfile;
-static const char xspaces[] = " ";
-
static int sawclose = 0;
static int indent;
-/* Names for patterns. Non-zero only when linked with insn-output.c. */
+static void print_rtx PARAMS ((rtx));
-extern char **insn_name_ptr;
-
-static void print_rtx PROTO ((rtx));
+/* String printed at beginning of each RTL when it is dumped.
+ This string is set to ASM_COMMENT_START when the RTL is dumped in
+ the assembly output file. */
+const char *print_rtx_head = "";
/* Nonzero means suppress output of instruction numbers and line number
notes in debugging dumps.
This must be defined here so that programs like gencodes can be linked. */
int flag_dump_unnumbered = 0;
+/* Nonzero means use simplified format without flags, modes, etc. */
+int flag_simple = 0;
+
/* Nonzero if we are dumping graphical description. */
int dump_for_graph;
+/* Nonzero to dump all call_placeholder alternatives. */
+static int debug_call_placeholder_verbose;
+
/* Print IN_RTX onto OUTFILE. This is the recursive part of printing. */
static void
{
register int i = 0;
register int j;
- register char *format_ptr;
+ register const char *format_ptr;
register int is_insn;
+ rtx tem;
if (sawclose)
{
- fprintf (outfile, "\n%s",
- (xspaces + (sizeof xspaces - 1 - indent * 2)));
+ if (flag_simple)
+ fputc (' ', outfile);
+ else
+ fprintf (outfile, "\n%s%*s",
+ print_rtx_head, indent * 2, "");
sawclose = 0;
}
return;
}
- is_insn = (GET_RTX_CLASS (GET_CODE (in_rtx)) == 'i');
+ is_insn = (INSN_P (in_rtx));
/* When printing in VCG format we write INSNs, NOTE, LABEL, and BARRIER
in separate nodes and therefore have to handle them special here. */
else
{
/* print name of expression code */
- fprintf (outfile, "(%s", GET_RTX_NAME (GET_CODE (in_rtx)));
-
- if (in_rtx->in_struct)
- fputs ("/s", outfile);
-
- if (in_rtx->volatil)
- fputs ("/v", outfile);
-
- if (in_rtx->unchanging)
- fputs ("/u", outfile);
-
- if (in_rtx->integrated)
- fputs ("/i", outfile);
-
- if (GET_MODE (in_rtx) != VOIDmode)
+ if (flag_simple && GET_CODE (in_rtx) == CONST_INT)
+ fputc ('(', outfile);
+ else
+ fprintf (outfile, "(%s", GET_RTX_NAME (GET_CODE (in_rtx)));
+
+ if (! flag_simple)
{
- /* Print REG_NOTE names for EXPR_LIST and INSN_LIST. */
- if (GET_CODE (in_rtx) == EXPR_LIST || GET_CODE (in_rtx) == INSN_LIST)
- fprintf (outfile, ":%s", GET_REG_NOTE_NAME (GET_MODE (in_rtx)));
- else
- fprintf (outfile, ":%s", GET_MODE_NAME (GET_MODE (in_rtx)));
+ if (in_rtx->in_struct)
+ fputs ("/s", outfile);
+
+ if (in_rtx->volatil)
+ fputs ("/v", outfile);
+
+ if (in_rtx->unchanging)
+ fputs ("/u", outfile);
+
+ if (in_rtx->integrated)
+ fputs ("/i", outfile);
+
+ if (in_rtx->frame_related)
+ fputs ("/f", outfile);
+
+ if (in_rtx->jump)
+ fputs ("/j", outfile);
+
+ if (in_rtx->call)
+ fputs ("/c", outfile);
+
+ if (GET_MODE (in_rtx) != VOIDmode)
+ {
+ /* Print REG_NOTE names for EXPR_LIST and INSN_LIST. */
+ if (GET_CODE (in_rtx) == EXPR_LIST
+ || GET_CODE (in_rtx) == INSN_LIST)
+ fprintf (outfile, ":%s",
+ GET_REG_NOTE_NAME (GET_MODE (in_rtx)));
+ else
+ fprintf (outfile, ":%s", GET_MODE_NAME (GET_MODE (in_rtx)));
+ }
}
}
for (; i < GET_RTX_LENGTH (GET_CODE (in_rtx)); i++)
switch (*format_ptr++)
{
+ const char *str;
+
+ case 'T':
+ str = XTMPL (in_rtx, i);
+ goto string;
+
case 'S':
case 's':
- if (i == 3 && GET_CODE (in_rtx) == NOTE
- && (NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_EH_REGION_BEG
- || NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_EH_REGION_END
- || NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_BLOCK_BEG
- || NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_BLOCK_END))
- {
- fprintf (outfile, " %d", NOTE_BLOCK_NUMBER (in_rtx));
- sawclose = 1;
- break;
- }
+ str = XSTR (in_rtx, i);
+ string:
- if (i == 3 && GET_CODE (in_rtx) == NOTE
- && (NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_RANGE_START
- || NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_RANGE_END
- || NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_LIVE))
- {
- indent += 2;
- if (!sawclose)
- fprintf (outfile, " ");
- print_rtx (NOTE_RANGE_INFO (in_rtx));
- indent -= 2;
- break;
- }
-
- if (XSTR (in_rtx, i) == 0)
+ if (str == 0)
fputs (dump_for_graph ? " \\\"\\\"" : " \"\"", outfile);
else
- fprintf (outfile, dump_for_graph ? " (\\\"%s\\\")" : " (\"%s\")",
- XSTR (in_rtx, i));
+ {
+ if (dump_for_graph)
+ fprintf (outfile, " (\\\"%s\\\")", str);
+ else
+ fprintf (outfile, " (\"%s\")", str);
+ }
sawclose = 1;
break;
- /* 0 indicates a field for internal use that should not be printed. */
+ /* 0 indicates a field for internal use that should not be printed.
+ An exception is the third field of a NOTE, where it indicates
+ that the field has several different valid contents. */
case '0':
+ if (i == 1 && GET_CODE (in_rtx) == REG)
+ {
+ if (REGNO (in_rtx) != ORIGINAL_REGNO (in_rtx))
+ fprintf (outfile, " [%d]", ORIGINAL_REGNO (in_rtx));
+ break;
+ }
+ if (i == 3 && GET_CODE (in_rtx) == NOTE)
+ {
+ switch (NOTE_LINE_NUMBER (in_rtx))
+ {
+ case NOTE_INSN_EH_REGION_BEG:
+ case NOTE_INSN_EH_REGION_END:
+ if (flag_dump_unnumbered)
+ fprintf (outfile, " #");
+ else
+ fprintf (outfile, " %d", NOTE_EH_HANDLER (in_rtx));
+ sawclose = 1;
+ break;
+
+ case NOTE_INSN_BLOCK_BEG:
+ case NOTE_INSN_BLOCK_END:
+ fprintf (outfile, " ");
+ if (flag_dump_unnumbered)
+ fprintf (outfile, "#");
+ else
+ fprintf (outfile, HOST_PTR_PRINTF,
+ (char *) NOTE_BLOCK (in_rtx));
+ sawclose = 1;
+ break;
+
+ case NOTE_INSN_RANGE_BEG:
+ case NOTE_INSN_RANGE_END:
+ case NOTE_INSN_LIVE:
+ indent += 2;
+ if (!sawclose)
+ fprintf (outfile, " ");
+ print_rtx (NOTE_RANGE_INFO (in_rtx));
+ indent -= 2;
+ break;
+
+ case NOTE_INSN_BASIC_BLOCK:
+ {
+ basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
+ if (bb != 0)
+ fprintf (outfile, " [bb %d]", bb->index);
+ break;
+ }
+
+ case NOTE_INSN_EXPECTED_VALUE:
+ indent += 2;
+ if (!sawclose)
+ fprintf (outfile, " ");
+ print_rtx (NOTE_EXPECTED_VALUE (in_rtx));
+ indent -= 2;
+ break;
+
+ case NOTE_INSN_DELETED_LABEL:
+ if (NOTE_SOURCE_FILE (in_rtx))
+ fprintf (outfile, " (\"%s\")", NOTE_SOURCE_FILE (in_rtx));
+ else
+ fprintf (outfile, " \"\"");
+ break;
+
+ default:
+ {
+ const char * const str = X0STR (in_rtx, i);
+
+ if (NOTE_LINE_NUMBER (in_rtx) < 0)
+ ;
+ else if (str == 0)
+ fputs (dump_for_graph ? " \\\"\\\"" : " \"\"", outfile);
+ else
+ {
+ if (dump_for_graph)
+ fprintf (outfile, " (\\\"%s\\\")", str);
+ else
+ fprintf (outfile, " (\"%s\")", str);
+ }
+ break;
+ }
+ }
+ }
break;
case 'e':
+ do_e:
indent += 2;
if (!sawclose)
fprintf (outfile, " ");
indent += 2;
if (sawclose)
{
- fprintf (outfile, "\n%s",
- (xspaces + (sizeof xspaces - 1 - indent * 2)));
+ fprintf (outfile, "\n%s%*s",
+ print_rtx_head, indent * 2, "");
sawclose = 0;
}
fputs ("[ ", outfile);
indent -= 2;
}
if (sawclose)
- fprintf (outfile, "\n%s",
- (xspaces + (sizeof xspaces - 1 - indent * 2)));
+ fprintf (outfile, "\n%s%*s",
+ print_rtx_head, indent * 2, "");
fputs ("] ", outfile);
sawclose = 1;
break;
case 'w':
- fprintf (outfile, " ");
+ if (! flag_simple)
+ fprintf (outfile, " ");
fprintf (outfile, HOST_WIDE_INT_PRINT_DEC, XWINT (in_rtx, i));
+ if (! flag_simple)
+ {
+ fprintf (outfile, " [");
+ fprintf (outfile, HOST_WIDE_INT_PRINT_HEX, XWINT (in_rtx, i));
+ fprintf (outfile, "]");
+ }
break;
case 'i':
- {
- register int value = XINT (in_rtx, i);
+ if (i == 5 && GET_CODE (in_rtx) == NOTE)
+ {
+ /* This field is only used for NOTE_INSN_DELETED_LABEL, and
+ other times often contains garbage from INSN->NOTE death. */
+ if (NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_DELETED_LABEL)
+ fprintf (outfile, " %d", XINT (in_rtx, i));
+ }
+ else
+ {
+ register int value = XINT (in_rtx, i);
+ const char *name;
- if (GET_CODE (in_rtx) == REG && value < FIRST_PSEUDO_REGISTER)
- {
- fputc (' ', outfile);
- DEBUG_PRINT_REG (in_rtx, 0, outfile);
- }
- else if (flag_dump_unnumbered
- && (is_insn || GET_CODE (in_rtx) == NOTE))
- fputc ('#', outfile);
- else
- fprintf (outfile, " %d", value);
- }
- if (is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, i)
- && insn_name_ptr
- && XINT (in_rtx, i) >= 0)
- fprintf (outfile, " {%s}", insn_name_ptr[XINT (in_rtx, i)]);
- sawclose = 0;
+ if (GET_CODE (in_rtx) == REG && value < FIRST_PSEUDO_REGISTER)
+ {
+ fputc (' ', outfile);
+ DEBUG_PRINT_REG (in_rtx, 0, outfile);
+ }
+ else if (GET_CODE (in_rtx) == REG
+ && value <= LAST_VIRTUAL_REGISTER)
+ {
+ if (value == VIRTUAL_INCOMING_ARGS_REGNUM)
+ fprintf (outfile, " %d virtual-incoming-args", value);
+ else if (value == VIRTUAL_STACK_VARS_REGNUM)
+ fprintf (outfile, " %d virtual-stack-vars", value);
+ else if (value == VIRTUAL_STACK_DYNAMIC_REGNUM)
+ fprintf (outfile, " %d virtual-stack-dynamic", value);
+ else if (value == VIRTUAL_OUTGOING_ARGS_REGNUM)
+ fprintf (outfile, " %d virtual-outgoing-args", value);
+ else if (value == VIRTUAL_CFA_REGNUM)
+ fprintf (outfile, " %d virtual-cfa", value);
+ else
+ fprintf (outfile, " %d virtual-reg-%d", value,
+ value-FIRST_VIRTUAL_REGISTER);
+ }
+ else if (flag_dump_unnumbered
+ && (is_insn || GET_CODE (in_rtx) == NOTE))
+ fputc ('#', outfile);
+ else
+ fprintf (outfile, " %d", value);
+
+ if (is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, i)
+ && XINT (in_rtx, i) >= 0
+ && (name = get_insn_name (XINT (in_rtx, i))) != NULL)
+ fprintf (outfile, " {%s}", name);
+ sawclose = 0;
+ }
break;
/* Print NOTE_INSN names rather than integer codes. */
case 'n':
- if (XINT (in_rtx, i) <= 0)
+ if (XINT (in_rtx, i) >= (int) NOTE_INSN_BIAS
+ && XINT (in_rtx, i) < (int) NOTE_INSN_MAX)
fprintf (outfile, " %s", GET_NOTE_INSN_NAME (XINT (in_rtx, i)));
else
fprintf (outfile, " %d", XINT (in_rtx, i));
case 'u':
if (XEXP (in_rtx, i) != NULL)
{
+ rtx sub = XEXP (in_rtx, i);
+ enum rtx_code subc = GET_CODE (sub);
+
+ if (GET_CODE (in_rtx) == LABEL_REF)
+ {
+ if (subc == NOTE
+ && NOTE_LINE_NUMBER (sub) == NOTE_INSN_DELETED_LABEL)
+ {
+ if (flag_dump_unnumbered)
+ fprintf (outfile, " [# deleted]");
+ else
+ fprintf (outfile, " [%d deleted]", INSN_UID (sub));
+ sawclose = 0;
+ break;
+ }
+
+ if (subc != CODE_LABEL)
+ goto do_e;
+ }
+
if (flag_dump_unnumbered)
- fputc ('#', outfile);
+ fputs (" #", outfile);
else
- fprintf (outfile, " %d", INSN_UID (XEXP (in_rtx, i)));
+ fprintf (outfile, " %d", INSN_UID (sub));
}
else
fputs (" 0", outfile);
abort ();
}
- if (GET_CODE (in_rtx) == MEM)
- fprintf (outfile, " %d", MEM_ALIAS_SET (in_rtx));
-
-#if HOST_FLOAT_FORMAT == TARGET_FLOAT_FORMAT && LONG_DOUBLE_TYPE_SIZE == 64
- if (GET_CODE (in_rtx) == CONST_DOUBLE && FLOAT_MODE_P (GET_MODE (in_rtx)))
+ switch (GET_CODE (in_rtx))
{
- double val;
- REAL_VALUE_FROM_CONST_DOUBLE (val, in_rtx);
- fprintf (outfile, " [%.16g]", val);
- }
+ case MEM:
+ fputc (' ', outfile);
+ fprintf (outfile, HOST_WIDE_INT_PRINT_DEC, MEM_ALIAS_SET (in_rtx));
+ break;
+
+#if HOST_FLOAT_FORMAT == TARGET_FLOAT_FORMAT && MAX_LONG_DOUBLE_TYPE_SIZE == 64
+ case CONST_DOUBLE:
+ if (FLOAT_MODE_P (GET_MODE (in_rtx)))
+ {
+ double val;
+ REAL_VALUE_FROM_CONST_DOUBLE (val, in_rtx);
+ fprintf (outfile, " [%.16g]", val);
+ }
+ break;
#endif
+ case CODE_LABEL:
+ fprintf (outfile, " [%d uses]", LABEL_NUSES (in_rtx));
+ if (LABEL_ALTERNATE_NAME (in_rtx))
+ fprintf (outfile, " [alternate name: %s]",
+ LABEL_ALTERNATE_NAME (in_rtx));
+ break;
+
+ case CALL_PLACEHOLDER:
+ if (debug_call_placeholder_verbose)
+ {
+ fputs (" (cond [\n (const_string \"normal\") (sequence [", outfile);
+ for (tem = XEXP (in_rtx, 0); tem != 0; tem = NEXT_INSN (tem))
+ {
+ fputs ("\n ", outfile);
+ print_inline_rtx (outfile, tem, 4);
+ }
+
+ tem = XEXP (in_rtx, 1);
+ if (tem)
+ fputs ("\n ])\n (const_string \"tail_call\") (sequence [", outfile);
+ for (; tem != 0; tem = NEXT_INSN (tem))
+ {
+ fputs ("\n ", outfile);
+ print_inline_rtx (outfile, tem, 4);
+ }
+
+ tem = XEXP (in_rtx, 2);
+ if (tem)
+ fputs ("\n ])\n (const_string \"tail_recursion\") (sequence [", outfile);
+ for (; tem != 0; tem = NEXT_INSN (tem))
+ {
+ fputs ("\n ", outfile);
+ print_inline_rtx (outfile, tem, 4);
+ }
+
+ fputs ("\n ])\n ])", outfile);
+ break;
+ }
+
+ for (tem = XEXP (in_rtx, 0); tem != 0; tem = NEXT_INSN (tem))
+ if (GET_CODE (tem) == CALL_INSN)
+ {
+ fprintf (outfile, " ");
+ print_rtx (tem);
+ break;
+ }
+ break;
+
+ default:
+ break;
+ }
+
if (dump_for_graph
&& (is_insn || GET_CODE (in_rtx) == NOTE
|| GET_CODE (in_rtx) == CODE_LABEL || GET_CODE (in_rtx) == BARRIER))
debug_rtx (insn);
}
+/* Call this function to print an rtx list from START to END inclusive. */
+
+void
+debug_rtx_range (start, end)
+ rtx start, end;
+{
+ while (1)
+ {
+ debug_rtx (start);
+ if (!start || start == end)
+ break;
+ start = NEXT_INSN (start);
+ }
+}
+
/* Call this function to search an rtx list to find one with insn uid UID,
and then call debug_rtx_list to print it, using DEBUG_RTX_COUNT.
The found insn is returned to enable further debugging analysis. */
sawclose = 0;
if (rtx_first == 0)
- fputs ("(nil)\n", outf);
+ {
+ fputs (print_rtx_head, outf);
+ fputs ("(nil)\n", outf);
+ }
else
switch (GET_CODE (rtx_first))
{
case NOTE:
case CODE_LABEL:
case BARRIER:
- for (tmp_rtx = rtx_first; NULL != tmp_rtx; tmp_rtx = NEXT_INSN (tmp_rtx))
- {
- if (! flag_dump_unnumbered
- || GET_CODE (tmp_rtx) != NOTE
- || NOTE_LINE_NUMBER (tmp_rtx) < 0)
- {
- print_rtx (tmp_rtx);
- fprintf (outfile, "\n");
- }
- }
+ for (tmp_rtx = rtx_first; tmp_rtx != 0; tmp_rtx = NEXT_INSN (tmp_rtx))
+ if (! flag_dump_unnumbered
+ || GET_CODE (tmp_rtx) != NOTE || NOTE_LINE_NUMBER (tmp_rtx) < 0)
+ {
+ fputs (print_rtx_head, outfile);
+ print_rtx (tmp_rtx);
+ fprintf (outfile, "\n");
+ }
break;
default:
+ fputs (print_rtx_head, outfile);
print_rtx (rtx_first);
}
}
if (! flag_dump_unnumbered
|| GET_CODE (x) != NOTE || NOTE_LINE_NUMBER (x) < 0)
{
+ fputs (print_rtx_head, outfile);
print_rtx (x);
putc ('\n', outf);
return 1;
}
return 0;
}
+
+
+/* Like print_rtl except without all the detail; for example,
+ if RTX is a CONST_INT then print in decimal format. */
+
+void
+print_simple_rtl (outf, x)
+ FILE *outf;
+ rtx x;
+{
+ flag_simple = 1;
+ print_rtl (outf, x);
+ flag_simple = 0;
+}