/* Print RTL for GNU C Compiler.
- Copyright (C) 1987, 1988, 1992, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1987, 1988, 1992, 1997, 1998, 1999, 2000
+ Free Software Foundation, Inc.
This file is part of GNU CC.
#include "config.h"
#include "system.h"
#include "rtl.h"
-#include "bitmap.h"
#include "real.h"
+#include "flags.h"
+#include "basic-block.h"
/* How to print out a register name.
/* Array containing all of the register names */
#ifdef DEBUG_REGISTER_NAMES
-static char *reg_names[] = DEBUG_REGISTER_NAMES;
+static const char * const reg_names[] = DEBUG_REGISTER_NAMES;
#else
-static char *reg_names[] = REGISTER_NAMES;
+static const char * const reg_names[] = REGISTER_NAMES;
#endif
static FILE *outfile;
-char spaces[] = " ";
+static const char xspaces[] = " ";
static int sawclose = 0;
static int indent;
-/* Names for patterns. Non-zero only when linked with insn-output.c. */
-
-extern char **insn_name_ptr;
+static void print_rtx PARAMS ((rtx));
+/* 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 if we are dumping graphical description. */
+int dump_for_graph;
+
/* Print IN_RTX onto OUTFILE. This is the recursive part of printing. */
static void
print_rtx (in_rtx)
register rtx in_rtx;
{
- register int i, j;
- register char *format_ptr;
+ register int i = 0;
+ register int j;
+ register const char *format_ptr;
register int is_insn;
if (sawclose)
{
fprintf (outfile, "\n%s",
- (spaces + (sizeof spaces - 1 - indent * 2)));
+ (xspaces + (sizeof xspaces - 1 - indent * 2)));
sawclose = 0;
}
if (in_rtx == 0)
{
- fprintf (outfile, "(nil)");
+ fputs ("(nil)", outfile);
sawclose = 1;
return;
}
- /* print name of expression code */
- fprintf (outfile, "(%s", GET_RTX_NAME (GET_CODE (in_rtx)));
+ is_insn = (GET_RTX_CLASS (GET_CODE (in_rtx)) == 'i');
- if (in_rtx->in_struct)
- fprintf (outfile, "/s");
+ /* When printing in VCG format we write INSNs, NOTE, LABEL, and BARRIER
+ in separate nodes and therefore have to handle them special here. */
+ if (dump_for_graph &&
+ (is_insn || GET_CODE (in_rtx) == NOTE || GET_CODE (in_rtx) == CODE_LABEL
+ || GET_CODE (in_rtx) == BARRIER))
+ {
+ i = 3;
+ indent = 0;
+ }
+ else
+ {
+ /* print name of expression code */
+ fprintf (outfile, "(%s", GET_RTX_NAME (GET_CODE (in_rtx)));
- if (in_rtx->volatil)
- fprintf (outfile, "/v");
+ if (in_rtx->in_struct)
+ fputs ("/s", outfile);
- if (in_rtx->unchanging)
- fprintf (outfile, "/u");
+ if (in_rtx->volatil)
+ fputs ("/v", outfile);
- if (in_rtx->integrated)
- fprintf (outfile, "/i");
+ if (in_rtx->unchanging)
+ fputs ("/u", 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)));
+ 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)));
+ }
}
- is_insn = (GET_RTX_CLASS (GET_CODE (in_rtx)) == 'i');
- format_ptr = GET_RTX_FORMAT (GET_CODE (in_rtx));
+ /* Get the format string and skip the first elements if we have handled
+ them already. */
+ format_ptr = GET_RTX_FORMAT (GET_CODE (in_rtx)) + i;
- for (i = 0; i < GET_RTX_LENGTH (GET_CODE (in_rtx)); i++)
+ for (; i < GET_RTX_LENGTH (GET_CODE (in_rtx)); i++)
switch (*format_ptr++)
{
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;
- }
-
- 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))
- {
- indent += 2;
- if (!sawclose)
- fprintf (outfile, " ");
- print_rtx (NOTE_RANGE_INFO (in_rtx));
- indent -= 2;
- break;
- }
-
- if (i == 3 && GET_CODE (in_rtx) == NOTE
- && NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_LIVE)
+ if (XSTR (in_rtx, i) == 0)
+ fputs (dump_for_graph ? " \\\"\\\"" : " \"\"", outfile);
+ else
{
- if (XBITMAP (in_rtx, i) == NULL)
- fprintf (outfile, " {null}");
+ if (dump_for_graph)
+ fprintf (outfile, " (\\\"%s\\\")", XSTR (in_rtx, i));
else
- bitmap_print (outfile, XBITMAP (in_rtx, i), " {", "}");
- sawclose = 0;
+ fprintf (outfile, " (\"%s\")", XSTR (in_rtx, i));
}
-
- if (XSTR (in_rtx, i) == 0)
- fprintf (outfile, " \"\"");
- else
- fprintf (outfile, " (\"%s\")", XSTR (in_rtx, i));
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 == 3 && GET_CODE (in_rtx) == NOTE)
+ {
+ if (NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_EH_REGION_BEG
+ || NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_EH_REGION_END)
+ {
+ if (flag_dump_unnumbered)
+ fprintf (outfile, " #");
+ else
+ fprintf (outfile, " %d", NOTE_EH_HANDLER (in_rtx));
+ sawclose = 1;
+ }
+ else if (NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_BLOCK_BEG
+ || NOTE_LINE_NUMBER (in_rtx) == 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;
+ }
+ else if (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;
+ }
+ else if (NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_BASIC_BLOCK)
+ {
+ basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
+ fprintf (outfile, " [bb %d]", bb->index);
+ }
+ else
+ {
+ const char * const str = X0STR (in_rtx, i);
+ if (str == 0)
+ fputs (dump_for_graph ? " \\\"\\\"" : " \"\"", outfile);
+ else
+ {
+ if (dump_for_graph)
+ fprintf (outfile, " (\\\"%s\\\")", str);
+ else
+ fprintf (outfile, " (\"%s\")", str);
+ }
+ }
+ }
break;
case 'e':
+ do_e:
indent += 2;
if (!sawclose)
fprintf (outfile, " ");
if (sawclose)
{
fprintf (outfile, "\n%s",
- (spaces + (sizeof spaces - 1 - indent * 2)));
+ (xspaces + (sizeof xspaces - 1 - indent * 2)));
sawclose = 0;
}
- fprintf (outfile, "[ ");
+ fputs ("[ ", outfile);
if (NULL != XVEC (in_rtx, i))
{
indent += 2;
}
if (sawclose)
fprintf (outfile, "\n%s",
- (spaces + (sizeof spaces - 1 - indent * 2)));
+ (xspaces + (sizeof xspaces - 1 - indent * 2)));
- fprintf (outfile, "] ");
+ fputs ("] ", outfile);
sawclose = 1;
indent -= 2;
break;
case 'w':
fprintf (outfile, " ");
fprintf (outfile, HOST_WIDE_INT_PRINT_DEC, XWINT (in_rtx, i));
+ 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);
+ const char *name;
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))
- fprintf (outfile, "#");
+ 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;
}
- 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;
break;
/* Print NOTE_INSN names rather than integer codes. */
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
+ && subc != CODE_LABEL)
+ goto do_e;
+
if (flag_dump_unnumbered)
- fprintf (outfile, "#");
+ fputc ('#', outfile);
else
- fprintf (outfile, " %d", INSN_UID (XEXP (in_rtx, i)));
+ fprintf (outfile, " %d", INSN_UID (sub));
}
else
- fprintf (outfile, " 0");
+ fputs (" 0", outfile);
sawclose = 0;
break;
case 'b':
if (XBITMAP (in_rtx, i) == NULL)
- fprintf (outfile, " {null}");
+ fputs (" {null}", outfile);
else
bitmap_print (outfile, XBITMAP (in_rtx, i), " {", "}");
sawclose = 0;
case 't':
putc (' ', outfile);
- fprintf (outfile, HOST_WIDE_INT_PRINT_HEX,
- (HOST_WIDE_INT) XTREE (in_rtx, i));
+ fprintf (outfile, HOST_PTR_PRINTF, (char *) XTREE (in_rtx, i));
break;
case '*':
- fprintf (outfile, " Unknown");
+ fputs (" Unknown", outfile);
sawclose = 0;
break;
abort ();
}
-#if HOST_FLOAT_FORMAT == TARGET_FLOAT_FORMAT && LONG_DOUBLE_TYPE_SIZE == 64
+ if (GET_CODE (in_rtx) == MEM)
+ fprintf (outfile, " %d", MEM_ALIAS_SET (in_rtx));
+
+#if HOST_FLOAT_FORMAT == TARGET_FLOAT_FORMAT && MAX_LONG_DOUBLE_TYPE_SIZE == 64
if (GET_CODE (in_rtx) == CONST_DOUBLE && FLOAT_MODE_P (GET_MODE (in_rtx)))
{
double val;
}
#endif
- fprintf (outfile, ")");
- sawclose = 1;
+ if (GET_CODE (in_rtx) == CODE_LABEL)
+ {
+ fprintf (outfile, " [num uses: %d]", LABEL_NUSES (in_rtx));
+ if (LABEL_ALTERNATE_NAME (in_rtx))
+ fprintf (outfile, " [alternate name: %s]", LABEL_ALTERNATE_NAME (in_rtx));
+ }
+
+ if (dump_for_graph
+ && (is_insn || GET_CODE (in_rtx) == NOTE
+ || GET_CODE (in_rtx) == CODE_LABEL || GET_CODE (in_rtx) == BARRIER))
+ sawclose = 0;
+ else
+ {
+ fputc (')', outfile);
+ sawclose = 1;
+ }
}
/* Print an rtx on the current line of FILE. Initially indent IND
sawclose = 0;
if (rtx_first == 0)
- fprintf (outf, "(nil)\n");
+ fputs ("(nil)\n", outf);
else
switch (GET_CODE (rtx_first))
{
}
/* Like print_rtx, except specify a file. */
+/* Return nonzero if we actually printed anything. */
-void
+int
print_rtl_single (outf, x)
FILE *outf;
rtx x;
{
print_rtx (x);
putc ('\n', outf);
+ return 1;
}
+ return 0;
}
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