/* Convert RTL to assembler code and output it, for GNU compiler.
Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997,
- 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
+ 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
This file is part of GCC.
#include "config.h"
#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
#include "tree.h"
#include "rtl.h"
#include "target.h"
#include "debug.h"
#include "expr.h"
+#include "cfglayout.h"
#ifdef XCOFF_DEBUGGING_INFO
#include "xcoffout.h" /* Needed for external data
#include "dwarf2out.h"
#endif
+#ifdef DBX_DEBUGGING_INFO
+#include "dbxout.h"
+#endif
+
/* If we aren't using cc0, CC_STATUS_INIT shouldn't exist. So define a
null default for it to save conditionalization later. */
#ifndef CC_STATUS_INIT
#define JUMP_TABLES_IN_TEXT_SECTION 0
#endif
+#if defined(READONLY_DATA_SECTION) || defined(READONLY_DATA_SECTION_ASM_OP)
+#define HAVE_READONLY_DATA_SECTION 1
+#else
+#define HAVE_READONLY_DATA_SECTION 0
+#endif
+
/* Last insn processed by final_scan_insn. */
static rtx debug_insn;
rtx current_output_insn;
/* Filename of last NOTE. */
static const char *last_filename;
-/* Number of instrumented arcs when profile_arc_flag is set. */
-extern int count_instrumented_edges;
-
extern int length_unit_log; /* This is defined in insn-attrtab.c. */
/* Nonzero while outputting an `asm' with operands.
static rtx last_ignored_compare = 0;
-/* Flag indicating this insn is the start of a new basic block. */
-
-static int new_block = 1;
-
/* Assign a unique number to each insn that is output.
This can be used to generate unique local labels. */
int frame_pointer_needed;
-/* Assign unique numbers to labels generated for profiling. */
-
-int profile_label_no;
-
/* Number of unmatched NOTE_INSN_BLOCK_BEG notes we have seen. */
static int block_depth;
#endif
#ifdef HAVE_ATTR_length
-static int asm_insn_count PARAMS ((rtx));
-#endif
-static void profile_function PARAMS ((FILE *));
-static void profile_after_prologue PARAMS ((FILE *));
-static void notice_source_line PARAMS ((rtx));
-static rtx walk_alter_subreg PARAMS ((rtx *));
-static void output_asm_name PARAMS ((void));
-static tree get_mem_expr_from_op PARAMS ((rtx, int *));
-static void output_asm_operand_names PARAMS ((rtx *, int *, int));
-static void output_operand PARAMS ((rtx, int));
+static int asm_insn_count (rtx);
+#endif
+static void profile_function (FILE *);
+static void profile_after_prologue (FILE *);
+static bool notice_source_line (rtx);
+static rtx walk_alter_subreg (rtx *);
+static void output_asm_name (void);
+static void output_alternate_entry_point (FILE *, rtx);
+static tree get_mem_expr_from_op (rtx, int *);
+static void output_asm_operand_names (rtx *, int *, int);
+static void output_operand (rtx, int);
#ifdef LEAF_REGISTERS
-static void leaf_renumber_regs PARAMS ((rtx));
+static void leaf_renumber_regs (rtx);
#endif
#ifdef HAVE_cc0
-static int alter_cond PARAMS ((rtx));
+static int alter_cond (rtx);
#endif
#ifndef ADDR_VEC_ALIGN
-static int final_addr_vec_align PARAMS ((rtx));
+static int final_addr_vec_align (rtx);
#endif
#ifdef HAVE_ATTR_length
-static int align_fuzz PARAMS ((rtx, rtx, int, unsigned));
+static int align_fuzz (rtx, rtx, int, unsigned);
#endif
\f
/* Initialize data in final at the beginning of a compilation. */
void
-init_final (filename)
- const char *filename ATTRIBUTE_UNUSED;
+init_final (const char *filename ATTRIBUTE_UNUSED)
{
app_on = 0;
final_sequence = 0;
#endif
}
-/* Called at end of source file,
- to output the block-profiling table for this entire compilation. */
-
-void
-end_final (filename)
- const char *filename;
-{
- if (profile_arc_flag)
- {
- char name[20];
- int align = exact_log2 (BIGGEST_ALIGNMENT / BITS_PER_UNIT);
- int size, rounded;
- int long_bytes = LONG_TYPE_SIZE / BITS_PER_UNIT;
- int gcov_type_bytes = GCOV_TYPE_SIZE / BITS_PER_UNIT;
- int pointer_bytes = POINTER_SIZE / BITS_PER_UNIT;
- unsigned int align2 = LONG_TYPE_SIZE;
-
- size = gcov_type_bytes * count_instrumented_edges;
- rounded = size;
-
- rounded += (BIGGEST_ALIGNMENT / BITS_PER_UNIT) - 1;
- rounded = (rounded / (BIGGEST_ALIGNMENT / BITS_PER_UNIT)
- * (BIGGEST_ALIGNMENT / BITS_PER_UNIT));
-
- /* ??? This _really_ ought to be done with a structure layout
- and with assemble_constructor. If long_bytes != pointer_bytes
- we'll be emitting unaligned data at some point. */
- if (long_bytes != pointer_bytes)
- abort ();
-
- data_section ();
-
- /* Output the main header, of 11 words:
- 0: 1 if this file is initialized, else 0.
- 1: address of file name (LPBX1).
- 2: address of table of counts (LPBX2).
- 3: number of counts in the table.
- 4: always 0, for compatibility with Sun.
-
- The following are GNU extensions:
-
- 5: address of table of start addrs of basic blocks (LPBX3).
- 6: Number of bytes in this header.
- 7: address of table of function names (LPBX4).
- 8: address of table of line numbers (LPBX5) or 0.
- 9: address of table of file names (LPBX6) or 0.
- 10: space reserved for basic block profiling. */
-
- ASM_OUTPUT_ALIGN (asm_out_file, align);
-
- ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "LPBX", 0);
-
- /* Zero word. */
- assemble_integer (const0_rtx, long_bytes, align2, 1);
-
- /* Address of filename. */
- ASM_GENERATE_INTERNAL_LABEL (name, "LPBX", 1);
- assemble_integer (gen_rtx_SYMBOL_REF (Pmode, name), pointer_bytes,
- align2, 1);
-
- /* Address of count table. */
- ASM_GENERATE_INTERNAL_LABEL (name, "LPBX", 2);
- assemble_integer (gen_rtx_SYMBOL_REF (Pmode, name), pointer_bytes,
- align2, 1);
-
- /* Count of the # of instrumented arcs. */
- assemble_integer (GEN_INT (count_instrumented_edges),
- long_bytes, align2, 1);
-
- /* Zero word (link field). */
- assemble_integer (const0_rtx, pointer_bytes, align2, 1);
-
- assemble_integer (const0_rtx, pointer_bytes, align2, 1);
-
- /* Byte count for extended structure. */
- assemble_integer (GEN_INT (11 * UNITS_PER_WORD), long_bytes, align2, 1);
-
- /* Address of function name table. */
- assemble_integer (const0_rtx, pointer_bytes, align2, 1);
-
- /* Address of line number and filename tables if debugging. */
- assemble_integer (const0_rtx, pointer_bytes, align2, 1);
- assemble_integer (const0_rtx, pointer_bytes, align2, 1);
-
- /* Space for extension ptr (link field). */
- assemble_integer (const0_rtx, UNITS_PER_WORD, align2, 1);
-
- /* Output the file name changing the suffix to .d for
- Sun tcov compatibility. */
- ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "LPBX", 1);
- {
- char *cwd = getpwd ();
- int len = strlen (filename) + strlen (cwd) + 1;
- char *data_file = (char *) alloca (len + 4);
-
- strcpy (data_file, cwd);
- strcat (data_file, "/");
- strcat (data_file, filename);
- strip_off_ending (data_file, len);
- strcat (data_file, ".da");
- assemble_string (data_file, strlen (data_file) + 1);
- }
-
- /* Make space for the table of counts. */
- if (size == 0)
- {
- /* Realign data section. */
- ASM_OUTPUT_ALIGN (asm_out_file, align);
- ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "LPBX", 2);
- if (size != 0)
- assemble_zeros (size);
- }
- else
- {
- ASM_GENERATE_INTERNAL_LABEL (name, "LPBX", 2);
-#ifdef ASM_OUTPUT_SHARED_LOCAL
- if (flag_shared_data)
- ASM_OUTPUT_SHARED_LOCAL (asm_out_file, name, size, rounded);
- else
-#endif
-#ifdef ASM_OUTPUT_ALIGNED_DECL_LOCAL
- ASM_OUTPUT_ALIGNED_DECL_LOCAL (asm_out_file, NULL_TREE, name,
- size, BIGGEST_ALIGNMENT);
-#else
-#ifdef ASM_OUTPUT_ALIGNED_LOCAL
- ASM_OUTPUT_ALIGNED_LOCAL (asm_out_file, name, size,
- BIGGEST_ALIGNMENT);
-#else
- ASM_OUTPUT_LOCAL (asm_out_file, name, size, rounded);
-#endif
-#endif
- }
- }
-}
-
/* Default target function prologue and epilogue assembler output.
If not overridden for epilogue code, then the function body itself
contains return instructions wherever needed. */
void
-default_function_pro_epilogue (file, size)
- FILE *file ATTRIBUTE_UNUSED;
- HOST_WIDE_INT size ATTRIBUTE_UNUSED;
+default_function_pro_epilogue (FILE *file ATTRIBUTE_UNUSED,
+ HOST_WIDE_INT size ATTRIBUTE_UNUSED)
{
}
/* Default target hook that outputs nothing to a stream. */
void
-no_asm_to_stream (file)
- FILE *file ATTRIBUTE_UNUSED;
+no_asm_to_stream (FILE *file ATTRIBUTE_UNUSED)
{
}
Used before the output from an `asm' statement. */
void
-app_enable ()
+app_enable (void)
{
if (! app_on)
{
Called from varasm.c before most kinds of output. */
void
-app_disable ()
+app_disable (void)
{
if (app_on)
{
#ifdef DELAY_SLOTS
int
-dbr_sequence_length ()
+dbr_sequence_length (void)
{
if (final_sequence != 0)
return XVECLEN (final_sequence, 0) - 1;
static int *insn_lengths;
-#ifdef HAVE_ATTR_length
varray_type insn_addresses_;
-#endif
/* Max uid for which the above arrays are valid. */
static int insn_lengths_max_uid;
/* Indicate that branch shortening hasn't yet been done. */
void
-init_insn_lengths ()
+init_insn_lengths (void)
{
if (uid_shuid)
{
get its actual length. Otherwise, get its maximum length. */
int
-get_attr_length (insn)
- rtx insn ATTRIBUTE_UNUSED;
+get_attr_length (rtx insn ATTRIBUTE_UNUSED)
{
#ifdef HAVE_ATTR_length
rtx body;
case JUMP_INSN:
body = PATTERN (insn);
- if (GET_CODE (body) == ADDR_VEC || GET_CODE (body) == ADDR_DIFF_VEC)
+ if (GET_CODE (body) == ADDR_VEC || GET_CODE (body) == ADDR_DIFF_VEC)
{
/* Alignment is machine-dependent and should be handled by
ADDR_VEC_ALIGN. */
#ifndef ADDR_VEC_ALIGN
static int
-final_addr_vec_align (addr_vec)
- rtx addr_vec;
+final_addr_vec_align (rtx addr_vec)
{
int align = GET_MODE_SIZE (GET_MODE (PATTERN (addr_vec)));
/* For the benefit of port specific code do this also as a function. */
int
-label_to_alignment (label)
- rtx label;
+label_to_alignment (rtx label)
{
return LABEL_TO_ALIGNMENT (label);
}
The return value is undefined for any other value of GROWTH. */
static int
-align_fuzz (start, end, known_align_log, growth)
- rtx start, end;
- int known_align_log;
- unsigned growth;
+align_fuzz (rtx start, rtx end, int known_align_log, unsigned int growth)
{
int uid = INSN_UID (start);
rtx align_label;
to exclude the branch size. */
int
-insn_current_reference_address (branch)
- rtx branch;
+insn_current_reference_address (rtx branch)
{
rtx dest, seq;
int seq_uid;
#endif /* HAVE_ATTR_length */
\f
void
-compute_alignments ()
+compute_alignments (void)
{
- int i;
int log, max_skip, max_log;
+ basic_block bb;
if (label_align)
{
max_labelno = max_label_num ();
min_labelno = get_first_label_num ();
- label_align = (struct label_alignment *)
- xcalloc (max_labelno - min_labelno + 1, sizeof (struct label_alignment));
+ label_align = xcalloc (max_labelno - min_labelno + 1,
+ sizeof (struct label_alignment));
/* If not optimizing or optimizing for size, don't assign any alignments. */
if (! optimize || optimize_size)
return;
- for (i = 0; i < n_basic_blocks; i++)
+ FOR_EACH_BB (bb)
{
- basic_block bb = BASIC_BLOCK (i);
rtx label = bb->head;
int fallthru_frequency = 0, branch_frequency = 0, has_fallthru = 0;
edge e;
- if (GET_CODE (label) != CODE_LABEL)
+ if (GET_CODE (label) != CODE_LABEL
+ || probably_never_executed_bb_p (bb))
continue;
max_log = LABEL_ALIGN (label);
max_skip = LABEL_ALIGN_MAX_SKIP;
if (!has_fallthru
&& (branch_frequency > BB_FREQ_MAX / 10
- || (bb->frequency > BASIC_BLOCK (i - 1)->frequency * 10
- && (BASIC_BLOCK (i - 1)->frequency
+ || (bb->frequency > bb->prev_bb->frequency * 10
+ && (bb->prev_bb->frequency
<= ENTRY_BLOCK_PTR->frequency / 2))))
{
log = JUMP_ALIGN (label);
}
}
/* In case block is frequent and reached mostly by non-fallthru edge,
- align it. It is most likely an first block of loop. */
+ align it. It is most likely a first block of loop. */
if (has_fallthru
+ && maybe_hot_bb_p (bb)
&& branch_frequency + fallthru_frequency > BB_FREQ_MAX / 10
- && branch_frequency > fallthru_frequency * 5)
+ && branch_frequency > fallthru_frequency * 2)
{
log = LOOP_ALIGN (label);
if (max_log < log)
slots. */
void
-shorten_branches (first)
- rtx first ATTRIBUTE_UNUSED;
+shorten_branches (rtx first ATTRIBUTE_UNUSED)
{
rtx insn;
int max_uid;
/* Compute maximum UID and allocate label_align / uid_shuid. */
max_uid = get_max_uid ();
- uid_shuid = (int *) xmalloc (max_uid * sizeof *uid_shuid);
+ uid_shuid = xmalloc (max_uid * sizeof *uid_shuid);
if (max_labelno != max_label_num ())
{
n_labels = max_labelno - min_labelno + 1;
n_old_labels = old - min_labelno + 1;
- label_align = (struct label_alignment *) xrealloc
- (label_align, n_labels * sizeof (struct label_alignment));
+ label_align = xrealloc (label_align,
+ n_labels * sizeof (struct label_alignment));
/* Range of labels grows monotonically in the function. Abort here
means that the initialization of array got lost. */
next = NEXT_INSN (insn);
/* ADDR_VECs only take room if read-only data goes into the text
section. */
- if (JUMP_TABLES_IN_TEXT_SECTION
-#if !defined(READONLY_DATA_SECTION)
- || 1
-#endif
- )
+ if (JUMP_TABLES_IN_TEXT_SECTION || !HAVE_READONLY_DATA_SECTION)
if (next && GET_CODE (next) == JUMP_INSN)
{
rtx nextbody = PATTERN (next);
#ifdef HAVE_ATTR_length
/* Allocate the rest of the arrays. */
- insn_lengths = (int *) xmalloc (max_uid * sizeof (*insn_lengths));
+ insn_lengths = xmalloc (max_uid * sizeof (*insn_lengths));
insn_lengths_max_uid = max_uid;
/* Syntax errors can lead to labels being outside of the main insn stream.
Initialize insn_addresses, so that we get reproducible results. */
INSN_ADDRESSES_ALLOC (max_uid);
- varying_length = (char *) xcalloc (max_uid, sizeof (char));
+ varying_length = xcalloc (max_uid, sizeof (char));
/* Initialize uid_align. We scan instructions
from end to start, and keep in align_tab[n] the last seen insn
that does an alignment of at least n+1, i.e. the successor
in the alignment chain for an insn that does / has a known
alignment of n. */
- uid_align = (rtx *) xcalloc (max_uid, sizeof *uid_align);
+ uid_align = xcalloc (max_uid, sizeof *uid_align);
for (i = MAX_CODE_ALIGN; --i >= 0;)
align_tab[i] = NULL_RTX;
}
}
- INSN_ADDRESSES (uid) = insn_current_address;
+ INSN_ADDRESSES (uid) = insn_current_address + insn_lengths[uid];
if (GET_CODE (insn) == NOTE || GET_CODE (insn) == BARRIER
|| GET_CODE (insn) == CODE_LABEL)
{
/* This only takes room if read-only data goes into the text
section. */
- if (JUMP_TABLES_IN_TEXT_SECTION
-#if !defined(READONLY_DATA_SECTION)
- || 1
-#endif
- )
+ if (JUMP_TABLES_IN_TEXT_SECTION || !HAVE_READONLY_DATA_SECTION)
insn_lengths[uid] = (XVECLEN (body,
GET_CODE (body) == ADDR_DIFF_VEC)
* GET_MODE_SIZE (GET_MODE (body)));
PUT_MODE (body, CASE_VECTOR_SHORTEN_MODE (min_addr - rel_addr,
max_addr - rel_addr,
body));
- if (JUMP_TABLES_IN_TEXT_SECTION
-#if !defined(READONLY_DATA_SECTION)
- || 1
-#endif
- )
+ if (JUMP_TABLES_IN_TEXT_SECTION || !HAVE_READONLY_DATA_SECTION)
{
insn_lengths[uid]
= (XVECLEN (body, 1) * GET_MODE_SIZE (GET_MODE (body)));
insn_current_address += insn_lengths[inner_uid];
}
- }
+ }
else
insn_current_address += insn_lengths[uid];
This is used to compute its length. */
static int
-asm_insn_count (body)
- rtx body;
+asm_insn_count (rtx body)
{
const char *template;
int count = 1;
test and compare insns. */
void
-final_start_function (first, file, optimize)
- rtx first;
- FILE *file;
- int optimize ATTRIBUTE_UNUSED;
+final_start_function (rtx first ATTRIBUTE_UNUSED, FILE *file,
+ int optimize ATTRIBUTE_UNUSED)
{
block_depth = 0;
}
#endif
- if (NOTE_LINE_NUMBER (first) != NOTE_INSN_DELETED)
- notice_source_line (first);
+ last_filename = locator_file (prologue_locator);
+ last_linenum = locator_line (prologue_locator);
+
high_block_linenum = high_function_linenum = last_linenum;
(*debug_hooks->begin_prologue) (last_linenum, last_filename);
if (write_symbols)
{
remove_unnecessary_notes ();
- reorder_blocks ();
+ reemit_insn_block_notes ();
number_blocks (current_function_decl);
/* We never actually put out begin/end notes for the top-level
block in the function. But, conceptually, that block is
/* First output the function prologue: code to set up the stack frame. */
(*targetm.asm_out.function_prologue) (file, get_frame_size ());
-#ifdef VMS_DEBUGGING_INFO
- /* Output label after the prologue of the function. */
- if (write_symbols == VMS_DEBUG || write_symbols == VMS_AND_DWARF2_DEBUG)
- vmsdbgout_after_prologue ();
-#endif
-
/* If the machine represents the prologue as RTL, the profiling code must
be emitted when NOTE_INSN_PROLOGUE_END is scanned. */
#ifdef HAVE_prologue
if (! HAVE_prologue)
#endif
profile_after_prologue (file);
-
- profile_label_no++;
}
static void
-profile_after_prologue (file)
- FILE *file ATTRIBUTE_UNUSED;
+profile_after_prologue (FILE *file ATTRIBUTE_UNUSED)
{
#ifndef PROFILE_BEFORE_PROLOGUE
if (current_function_profile)
}
static void
-profile_function (file)
- FILE *file ATTRIBUTE_UNUSED;
+profile_function (FILE *file ATTRIBUTE_UNUSED)
{
#ifndef NO_PROFILE_COUNTERS
- int align = MIN (BIGGEST_ALIGNMENT, LONG_TYPE_SIZE);
+# define NO_PROFILE_COUNTERS 0
#endif
#if defined(ASM_OUTPUT_REG_PUSH)
-#if defined(STRUCT_VALUE_INCOMING_REGNUM) || defined(STRUCT_VALUE_REGNUM)
int sval = current_function_returns_struct;
-#endif
+ rtx svrtx = targetm.calls.struct_value_rtx (TREE_TYPE (current_function_decl), 1);
#if defined(STATIC_CHAIN_INCOMING_REGNUM) || defined(STATIC_CHAIN_REGNUM)
int cxt = current_function_needs_context;
#endif
#endif /* ASM_OUTPUT_REG_PUSH */
-#ifndef NO_PROFILE_COUNTERS
- data_section ();
- ASM_OUTPUT_ALIGN (file, floor_log2 (align / BITS_PER_UNIT));
- ASM_OUTPUT_INTERNAL_LABEL (file, "LP", profile_label_no);
- assemble_integer (const0_rtx, LONG_TYPE_SIZE / BITS_PER_UNIT, align, 1);
-#endif
+ if (! NO_PROFILE_COUNTERS)
+ {
+ int align = MIN (BIGGEST_ALIGNMENT, LONG_TYPE_SIZE);
+ data_section ();
+ ASM_OUTPUT_ALIGN (file, floor_log2 (align / BITS_PER_UNIT));
+ (*targetm.asm_out.internal_label) (file, "LP", current_function_funcdef_no);
+ assemble_integer (const0_rtx, LONG_TYPE_SIZE / BITS_PER_UNIT, align, 1);
+ }
function_section (current_function_decl);
-#if defined(STRUCT_VALUE_INCOMING_REGNUM) && defined(ASM_OUTPUT_REG_PUSH)
- if (sval)
- ASM_OUTPUT_REG_PUSH (file, STRUCT_VALUE_INCOMING_REGNUM);
-#else
-#if defined(STRUCT_VALUE_REGNUM) && defined(ASM_OUTPUT_REG_PUSH)
- if (sval)
- {
- ASM_OUTPUT_REG_PUSH (file, STRUCT_VALUE_REGNUM);
- }
-#endif
+#if defined(ASM_OUTPUT_REG_PUSH)
+ if (sval && GET_CODE (svrtx) == REG)
+ ASM_OUTPUT_REG_PUSH (file, REGNO (svrtx));
#endif
#if defined(STATIC_CHAIN_INCOMING_REGNUM) && defined(ASM_OUTPUT_REG_PUSH)
#endif
#endif
- FUNCTION_PROFILER (file, profile_label_no);
+ FUNCTION_PROFILER (file, current_function_funcdef_no);
#if defined(STATIC_CHAIN_INCOMING_REGNUM) && defined(ASM_OUTPUT_REG_PUSH)
if (cxt)
#endif
#endif
-#if defined(STRUCT_VALUE_INCOMING_REGNUM) && defined(ASM_OUTPUT_REG_PUSH)
- if (sval)
- ASM_OUTPUT_REG_POP (file, STRUCT_VALUE_INCOMING_REGNUM);
-#else
-#if defined(STRUCT_VALUE_REGNUM) && defined(ASM_OUTPUT_REG_PUSH)
- if (sval)
- {
- ASM_OUTPUT_REG_POP (file, STRUCT_VALUE_REGNUM);
- }
-#endif
+#if defined(ASM_OUTPUT_REG_PUSH)
+ if (sval && GET_CODE (svrtx) == REG)
+ ASM_OUTPUT_REG_POP (file, REGNO (svrtx));
#endif
}
even though not all of them are needed. */
void
-final_end_function ()
+final_end_function (void)
{
app_disable ();
(*targetm.asm_out.function_epilogue) (asm_out_file, get_frame_size ());
/* And debug output. */
- (*debug_hooks->end_epilogue) ();
+ (*debug_hooks->end_epilogue) (last_linenum, last_filename);
#if defined (DWARF2_UNWIND_INFO)
if (write_symbols != DWARF2_DEBUG && write_symbols != VMS_AND_DWARF2_DEBUG
&& dwarf2out_do_frame ())
- dwarf2out_end_epilogue ();
+ dwarf2out_end_epilogue (last_linenum, last_filename);
#endif
}
\f
Prescanning is done only on certain machines. */
void
-final (first, file, optimize, prescan)
- rtx first;
- FILE *file;
- int optimize;
- int prescan;
+final (rtx first, FILE *file, int optimize, int prescan)
{
rtx insn;
int max_line = 0;
int max_uid = 0;
last_ignored_compare = 0;
- new_block = 1;
/* Make a map indicating which line numbers appear in this function.
When producing SDB debugging info, delete troublesome line number
max_line = NOTE_LINE_NUMBER (insn);
}
- line_note_exists = (char *) xcalloc (max_line + 1, sizeof (char));
+ line_note_exists = xcalloc (max_line + 1, sizeof (char));
for (insn = first; insn; insn = NEXT_INSN (insn))
{
- if (INSN_UID (insn) > max_uid) /* find largest UID */
+ if (INSN_UID (insn) > max_uid) /* Find largest UID. */
max_uid = INSN_UID (insn);
if (GET_CODE (insn) == NOTE && NOTE_LINE_NUMBER (insn) > 0)
line_note_exists[NOTE_LINE_NUMBER (insn)] = 1;
#ifdef HAVE_ATTR_length
if ((unsigned) INSN_UID (insn) >= INSN_ADDRESSES_SIZE ())
{
-#ifdef STACK_REGS
- /* Irritatingly, the reg-stack pass is creating new instructions
- and because of REG_DEAD note abuse it has to run after
- shorten_branches. Fake address of -1 then. */
- insn_current_address = -1;
-#else
/* This can be triggered by bugs elsewhere in the compiler if
new insns are created after init_insn_lengths is called. */
- abort ();
-#endif
+ if (GET_CODE (insn) == NOTE)
+ insn_current_address = -1;
+ else
+ abort ();
}
else
insn_current_address = INSN_ADDRESSES (INSN_UID (insn));
}
\f
const char *
-get_insn_template (code, insn)
- int code;
- rtx insn;
+get_insn_template (int code, rtx insn)
{
const void *output = insn_data[code].output;
switch (insn_data[code].output_format)
}
}
+/* Emit the appropriate declaration for an alternate-entry-point
+ symbol represented by INSN, to FILE. INSN is a CODE_LABEL with
+ LABEL_KIND != LABEL_NORMAL.
+
+ The case fall-through in this function is intentional. */
+static void
+output_alternate_entry_point (FILE *file, rtx insn)
+{
+ const char *name = LABEL_NAME (insn);
+
+ switch (LABEL_KIND (insn))
+ {
+ case LABEL_WEAK_ENTRY:
+#ifdef ASM_WEAKEN_LABEL
+ ASM_WEAKEN_LABEL (file, name);
+#endif
+ case LABEL_GLOBAL_ENTRY:
+ (*targetm.asm_out.globalize_label) (file, name);
+ case LABEL_STATIC_ENTRY:
+#ifdef ASM_OUTPUT_TYPE_DIRECTIVE
+ ASM_OUTPUT_TYPE_DIRECTIVE (file, name, "function");
+#endif
+ ASM_OUTPUT_LABEL (file, name);
+ break;
+
+ case LABEL_NORMAL:
+ default:
+ abort ();
+ }
+}
+
/* The final scan for one insn, INSN.
Args are same as in `final', except that INSN
is the insn being scanned.
used for within delayed branch sequence output). */
rtx
-final_scan_insn (insn, file, optimize, prescan, nopeepholes)
- rtx insn;
- FILE *file;
- int optimize ATTRIBUTE_UNUSED;
- int prescan;
- int nopeepholes ATTRIBUTE_UNUSED;
+final_scan_insn (rtx insn, FILE *file, int optimize ATTRIBUTE_UNUSED,
+ int prescan, int nopeepholes ATTRIBUTE_UNUSED)
{
#ifdef HAVE_cc0
rtx set;
case NOTE_INSN_LOOP_VTOP:
case NOTE_INSN_FUNCTION_END:
case NOTE_INSN_REPEATED_LINE_NUMBER:
- case NOTE_INSN_RANGE_BEG:
- case NOTE_INSN_RANGE_END:
- case NOTE_INSN_LIVE:
case NOTE_INSN_EXPECTED_VALUE:
break;
case NOTE_INSN_FUNCTION_BEG:
app_disable ();
- (*debug_hooks->end_prologue) (last_linenum);
+ (*debug_hooks->end_prologue) (last_linenum, last_filename);
break;
case NOTE_INSN_BLOCK_BEG:
default:
if (NOTE_LINE_NUMBER (insn) <= 0)
abort ();
-
- /* This note is a line-number. */
- {
- rtx note;
- int note_after = 0;
-
- /* If there is anything real after this note, output it.
- If another line note follows, omit this one. */
- for (note = NEXT_INSN (insn); note; note = NEXT_INSN (note))
- {
- if (GET_CODE (note) != NOTE && GET_CODE (note) != CODE_LABEL)
- break;
-
- /* These types of notes can be significant
- so make sure the preceding line number stays. */
- else if (GET_CODE (note) == NOTE
- && (NOTE_LINE_NUMBER (note) == NOTE_INSN_BLOCK_BEG
- || NOTE_LINE_NUMBER (note) == NOTE_INSN_BLOCK_END
- || NOTE_LINE_NUMBER (note) == NOTE_INSN_FUNCTION_BEG))
- break;
- else if (GET_CODE (note) == NOTE && NOTE_LINE_NUMBER (note) > 0)
- {
- /* Another line note follows; we can delete this note
- if no intervening line numbers have notes elsewhere. */
- int num;
- for (num = NOTE_LINE_NUMBER (insn) + 1;
- num < NOTE_LINE_NUMBER (note);
- num++)
- if (line_note_exists[num])
- break;
-
- if (num >= NOTE_LINE_NUMBER (note))
- note_after = 1;
- break;
- }
- }
-
- /* Output this line note if it is the first or the last line
- note in a row. */
- if (!note_after)
- {
- notice_source_line (insn);
- (*debug_hooks->source_line) (last_linenum, last_filename);
- }
- }
break;
}
break;
#ifdef ASM_OUTPUT_MAX_SKIP_ALIGN
ASM_OUTPUT_MAX_SKIP_ALIGN (file, align, max_skip);
#else
+#ifdef ASM_OUTPUT_ALIGN_WITH_NOP
+ ASM_OUTPUT_ALIGN_WITH_NOP (file, align);
+#else
ASM_OUTPUT_ALIGN (file, align);
#endif
+#endif
}
}
#ifdef HAVE_cc0
#endif
if (prescan > 0)
break;
- new_block = 1;
#ifdef FINAL_PRESCAN_LABEL
FINAL_PRESCAN_INSN (insn, NULL, 0);
ASM_OUTPUT_CASE_LABEL (file, "L", CODE_LABEL_NUMBER (insn),
NEXT_INSN (insn));
#else
- if (LABEL_ALTERNATE_NAME (insn))
- ASM_OUTPUT_ALTERNATE_LABEL_NAME (file, insn);
- else
- ASM_OUTPUT_INTERNAL_LABEL (file, "L", CODE_LABEL_NUMBER (insn));
+ (*targetm.asm_out.internal_label) (file, "L", CODE_LABEL_NUMBER (insn));
#endif
#endif
break;
}
}
- if (LABEL_ALTERNATE_NAME (insn))
- ASM_OUTPUT_ALTERNATE_LABEL_NAME (file, insn);
+ if (LABEL_ALT_ENTRY_P (insn))
+ output_alternate_entry_point (file, insn);
else
- ASM_OUTPUT_INTERNAL_LABEL (file, "L", CODE_LABEL_NUMBER (insn));
+ (*targetm.asm_out.internal_label) (file, "L", CODE_LABEL_NUMBER (insn));
break;
default:
break;
}
+ /* Output this line note if it is the first or the last line
+ note in a row. */
+ if (notice_source_line (insn))
+ {
+ (*debug_hooks->source_line) (last_linenum, last_filename);
+ }
if (GET_CODE (body) == ASM_INPUT)
{
if (asm_noperands (body) >= 0)
{
unsigned int noperands = asm_noperands (body);
- rtx *ops = (rtx *) alloca (noperands * sizeof (rtx));
+ rtx *ops = alloca (noperands * sizeof (rtx));
const char *string;
/* There's no telling what that did to the condition codes. */
break;
final_sequence = body;
+ /* Record the delay slots' frame information before the branch.
+ This is needed for delayed calls: see execute_cfa_program(). */
+#if defined (DWARF2_UNWIND_INFO)
+ if (dwarf2out_do_frame ())
+ for (i = 1; i < XVECLEN (body, 0); i++)
+ dwarf2out_frame_debug (XVECEXP (body, 0, i));
+#endif
+
/* The first insn in this SEQUENCE might be a JUMP_INSN that will
force the restoration of a comparison that was previously
thought unnecessary. If that happens, cancel this sequence
insn_code_number = recog_memoized (insn);
cleanup_subreg_operands (insn);
- /* Dump the insn in the assembly for debugging. */
- if (flag_dump_rtl_in_asm)
- {
- print_rtx_head = ASM_COMMENT_START;
- print_rtl_single (asm_out_file, insn);
- print_rtx_head = "";
- }
+ /* Dump the insn in the assembly for debugging. */
+ if (flag_dump_rtl_in_asm)
+ {
+ print_rtx_head = ASM_COMMENT_START;
+ print_rtl_single (asm_out_file, insn);
+ print_rtx_head = "";
+ }
if (! constrain_operands_cached (1))
fatal_insn_not_found (insn);
if (prev_nonnote_insn (insn) != last_ignored_compare)
abort ();
- new_block = 0;
/* We have already processed the notes between the setter and
the user. Make sure we don't process them again, this is
abort ();
#endif
- new_block = 0;
return new;
}
output_asm_insn (template, recog_data.operand);
+ /* If necessary, report the effect that the instruction has on
+ the unwind info. We've already done this for delay slots
+ and call instructions. */
#if defined (DWARF2_UNWIND_INFO)
-#if defined (HAVE_prologue)
- if (GET_CODE (insn) == INSN && dwarf2out_do_frame ())
- dwarf2out_frame_debug (insn);
-#else
- if (!ACCUMULATE_OUTGOING_ARGS
- && GET_CODE (insn) == INSN
+ if (GET_CODE (insn) == INSN
+#if !defined (HAVE_prologue)
+ && !ACCUMULATE_OUTGOING_ARGS
+#endif
+ && final_sequence == 0
&& dwarf2out_do_frame ())
dwarf2out_frame_debug (insn);
#endif
-#endif
#if 0
- /* It's not at all clear why we did this and doing so interferes
- with tests we'd like to do to use REG_WAS_0 notes, so let's try
- with this out. */
+ /* It's not at all clear why we did this and doing so used to
+ interfere with tests that used REG_WAS_0 notes, which are
+ now gone, so let's try with this out. */
/* Mark this insn as having been output. */
INSN_DELETED_P (insn) = 1;
/* Emit information for vtable gc. */
note = find_reg_note (insn, REG_VTABLE_REF, NULL_RTX);
- if (note)
- assemble_vtable_entry (XEXP (XEXP (note, 0), 0),
- INTVAL (XEXP (XEXP (note, 0), 1)));
current_output_insn = debug_insn = 0;
}
/* Output debugging info to the assembler file FILE
based on the NOTE-insn INSN, assumed to be a line number. */
-static void
-notice_source_line (insn)
- rtx insn;
+static bool
+notice_source_line (rtx insn)
{
- const char *filename = NOTE_SOURCE_FILE (insn);
+ const char *filename = insn_file (insn);
+ int linenum = insn_line (insn);
- last_filename = filename;
- last_linenum = NOTE_LINE_NUMBER (insn);
- high_block_linenum = MAX (last_linenum, high_block_linenum);
- high_function_linenum = MAX (last_linenum, high_function_linenum);
+ if (filename && (filename != last_filename || last_linenum != linenum))
+ {
+ last_filename = filename;
+ last_linenum = linenum;
+ high_block_linenum = MAX (last_linenum, high_block_linenum);
+ high_function_linenum = MAX (last_linenum, high_function_linenum);
+ return true;
+ }
+ return false;
}
\f
/* For each operand in INSN, simplify (subreg (reg)) so that it refers
directly to the desired hard register. */
void
-cleanup_subreg_operands (insn)
- rtx insn;
+cleanup_subreg_operands (rtx insn)
{
int i;
extract_insn_cached (insn);
based on the thing it is a subreg of. */
rtx
-alter_subreg (xp)
- rtx *xp;
+alter_subreg (rtx *xp)
{
rtx x = *xp;
rtx y = SUBREG_REG (x);
else if (GET_CODE (y) == REG)
{
unsigned int regno = subreg_hard_regno (x, 1);
- PUT_CODE (x, REG);
- REGNO (x) = regno;
- ORIGINAL_REGNO (x) = ORIGINAL_REGNO (y);
- /* This field has a different meaning for REGs and SUBREGs. Make
- sure to clear it! */
- x->used = 0;
+ *xp = gen_rtx_REG_offset (y, GET_MODE (x), regno, SUBREG_BYTE (x));
}
else
abort ();
/* Do alter_subreg on all the SUBREGs contained in X. */
static rtx
-walk_alter_subreg (xp)
- rtx *xp;
+walk_alter_subreg (rtx *xp)
{
rtx x = *xp;
switch (GET_CODE (x))
2 means that COND has been altered. */
static int
-alter_cond (cond)
- rtx cond;
+alter_cond (rtx cond)
{
int value = 0;
In an `asm', it's the user's fault; otherwise, the compiler's fault. */
void
-output_operand_lossage VPARAMS ((const char *msgid, ...))
+output_operand_lossage (const char *msgid, ...)
{
char *fmt_string;
char *new_message;
const char *pfx_str;
- VA_OPEN (ap, msgid);
- VA_FIXEDARG (ap, const char *, msgid);
+ va_list ap;
+
+ va_start (ap, msgid);
pfx_str = this_is_asm_operands ? _("invalid `asm': ") : "output_operand: ";
asprintf (&fmt_string, "%s%s", pfx_str, _(msgid));
vasprintf (&new_message, fmt_string, ap);
-
+
if (this_is_asm_operands)
error_for_asm (this_is_asm_operands, "%s", new_message);
else
free (fmt_string);
free (new_message);
- VA_CLOSE (ap);
+ va_end (ap);
}
\f
/* Output of assembler code from a template, and its subroutines. */
alternative used. */
static void
-output_asm_name ()
+output_asm_name (void)
{
if (debug_insn)
{
corresponds to the address of the object and 0 if to the object. */
static tree
-get_mem_expr_from_op (op, paddressp)
- rtx op;
- int *paddressp;
+get_mem_expr_from_op (rtx op, int *paddressp)
{
tree expr;
int inner_addressp;
*paddressp = 0;
- if (GET_CODE (op) == REG && ORIGINAL_REGNO (op) >= FIRST_PSEUDO_REGISTER)
- return REGNO_DECL (ORIGINAL_REGNO (op));
+ if (GET_CODE (op) == REG)
+ return REG_EXPR (op);
else if (GET_CODE (op) != MEM)
return 0;
is the number of operands to write. */
static void
-output_asm_operand_names (operands, oporder, nops)
- rtx *operands;
- int *oporder;
- int nops;
+output_asm_operand_names (rtx *operands, int *oporder, int nops)
{
int wrote = 0;
int i;
for (i = 0; i < nops; i++)
{
int addressp;
- tree expr = get_mem_expr_from_op (operands[oporder[i]], &addressp);
+ rtx op = operands[oporder[i]];
+ tree expr = get_mem_expr_from_op (op, &addressp);
+ fprintf (asm_out_file, "%c%s",
+ wrote ? ',' : '\t', wrote ? "" : ASM_COMMENT_START);
+ wrote = 1;
if (expr)
{
- fprintf (asm_out_file, "%c%s %s",
- wrote ? ',' : '\t', wrote ? "" : ASM_COMMENT_START,
+ fprintf (asm_out_file, "%s",
addressp ? "*" : "");
print_mem_expr (asm_out_file, expr);
wrote = 1;
}
+ else if (REG_P (op) && ORIGINAL_REGNO (op)
+ && ORIGINAL_REGNO (op) != REGNO (op))
+ fprintf (asm_out_file, " tmp%i", ORIGINAL_REGNO (op));
}
}
of the operand, with no other punctuation. */
void
-output_asm_insn (template, operands)
- const char *template;
- rtx *operands;
+output_asm_insn (const char *template, rtx *operands)
{
const char *p;
int c;
/* Output a LABEL_REF, or a bare CODE_LABEL, as an assembler symbol. */
void
-output_asm_label (x)
- rtx x;
+output_asm_label (rtx x)
{
char buf[256];
by PRINT_OPERAND. */
static void
-output_operand (x, code)
- rtx x;
- int code ATTRIBUTE_UNUSED;
+output_operand (rtx x, int code ATTRIBUTE_UNUSED)
{
if (x && GET_CODE (x) == SUBREG)
x = alter_subreg (&x);
The macro PRINT_OPERAND_ADDRESS exists just to control this function. */
void
-output_address (x)
- rtx x;
+output_address (rtx x)
{
walk_alter_subreg (&x);
PRINT_OPERAND_ADDRESS (asm_out_file, x);
that may appear in these expressions. */
void
-output_addr_const (file, x)
- FILE *file;
- rtx x;
+output_addr_const (FILE *file, rtx x)
{
char buf[256];
%U prints the value of USER_LABEL_PREFIX.
%I prints the value of IMMEDIATE_PREFIX.
%O runs ASM_OUTPUT_OPCODE to transform what follows in the string.
- Also supported are %d, %x, %s, %e, %f, %g and %%.
+ Also supported are %d, %i, %u, %x, %X, %o, %c, %s and %%.
We handle alternate assembler dialects here, just like output_asm_insn. */
void
-asm_fprintf VPARAMS ((FILE *file, const char *p, ...))
+asm_fprintf (FILE *file, const char *p, ...)
{
char buf[10];
char *q, c;
+ va_list argptr;
- VA_OPEN (argptr, p);
- VA_FIXEDARG (argptr, FILE *, file);
- VA_FIXEDARG (argptr, const char *, p);
+ va_start (argptr, p);
buf[0] = '%';
case '%':
c = *p++;
q = &buf[1];
+ while (strchr ("-+ #0", c))
+ {
+ *q++ = c;
+ c = *p++;
+ }
while (ISDIGIT (c) || c == '.')
{
*q++ = c;
switch (c)
{
case '%':
- fprintf (file, "%%");
+ putc ('%', file);
break;
case 'd': case 'i': case 'u':
- case 'x': case 'p': case 'X':
- case 'o':
+ case 'x': case 'X': case 'o':
+ case 'c':
*q++ = c;
*q = 0;
fprintf (file, buf, va_arg (argptr, int));
break;
case 'w':
- /* This is a prefix to the 'd', 'i', 'u', 'x', 'p', and 'X' cases,
- but we do not check for those cases. It means that the value
- is a HOST_WIDE_INT, which may be either `int' or `long'. */
-
-#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
-#else
-#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
- *q++ = 'l';
-#else
- *q++ = 'l';
- *q++ = 'l';
-#endif
-#endif
-
+ /* This is a prefix to the 'd', 'i', 'u', 'x', 'X', and
+ 'o' cases, but we do not check for those cases. It
+ means that the value is a HOST_WIDE_INT, which may be
+ either `long' or `long long'. */
+ memcpy (q, HOST_WIDE_INT_PRINT, strlen (HOST_WIDE_INT_PRINT));
+ q += strlen (HOST_WIDE_INT_PRINT);
*q++ = *p++;
*q = 0;
fprintf (file, buf, va_arg (argptr, HOST_WIDE_INT));
case 'l':
*q++ = c;
- *q++ = *p++;
- *q = 0;
- fprintf (file, buf, va_arg (argptr, long));
- break;
+#ifdef HAVE_LONG_LONG
+ if (*p == 'l')
+ {
+ *q++ = *p++;
+ *q++ = *p++;
+ *q = 0;
+ fprintf (file, buf, va_arg (argptr, long long));
+ }
+ else
+#endif
+ {
+ *q++ = *p++;
+ *q = 0;
+ fprintf (file, buf, va_arg (argptr, long));
+ }
- case 'e':
- case 'f':
- case 'g':
- *q++ = c;
- *q = 0;
- fprintf (file, buf, va_arg (argptr, double));
break;
case 's':
break;
default:
- fputc (c, file);
+ putc (c, file);
}
- VA_CLOSE (argptr);
+ va_end (argptr);
}
\f
/* Split up a CONST_DOUBLE or integer constant rtx
and in *SECOND the other. */
void
-split_double (value, first, second)
- rtx value;
- rtx *first, *second;
+split_double (rtx value, rtx *first, rtx *second)
{
if (GET_CODE (value) == CONST_INT)
{
/* Return nonzero if this function has no function calls. */
int
-leaf_function_p ()
+leaf_function_p (void)
{
rtx insn;
rtx link;
return 1;
}
-/* Return 1 if branch is an forward branch.
+/* Return 1 if branch is a forward branch.
Uses insn_shuid array, so it works only in the final pass. May be used by
output templates to customary add branch prediction hints.
*/
int
-final_forward_branch_p (insn)
- rtx insn;
+final_forward_branch_p (rtx insn)
{
int insn_id, label_id;
if (!uid_shuid)
safely renumbered. */
int
-only_leaf_regs_used ()
+only_leaf_regs_used (void)
{
int i;
- char *permitted_reg_in_leaf_functions = LEAF_REGISTERS;
+ const char *const permitted_reg_in_leaf_functions = LEAF_REGISTERS;
for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
if ((regs_ever_live[i] || global_regs[i])
available in leaf functions. */
static void
-leaf_renumber_regs (first)
- rtx first;
+leaf_renumber_regs (rtx first)
{
rtx insn;
available in leaf functions. */
void
-leaf_renumber_regs_insn (in_rtx)
- rtx in_rtx;
+leaf_renumber_regs_insn (rtx in_rtx)
{
int i, j;
const char *format_ptr;
}
}
#endif
+
+
+/* When -gused is used, emit debug info for only used symbols. But in
+ addition to the standard intercepted debug_hooks there are some direct
+ calls into this file, i.e., dbxout_symbol, dbxout_parms, and dbxout_reg_params.
+ Those routines may also be called from a higher level intercepted routine. So
+ to prevent recording data for an inner call to one of these for an intercept,
+ we maintain a intercept nesting counter (debug_nesting). We only save the
+ intercepted arguments if the nesting is 1. */
+int debug_nesting = 0;
+
+static tree *symbol_queue;
+int symbol_queue_index = 0;
+static int symbol_queue_size = 0;
+
+/* Generate the symbols for any queued up type symbols we encountered
+ while generating the type info for some originally used symbol.
+ This might generate additional entries in the queue. Only when
+ the nesting depth goes to 0 is this routine called. */
+
+void
+debug_flush_symbol_queue (void)
+{
+ int i;
+
+ /* Make sure that additionally queued items are not flushed
+ prematurely. */
+
+ ++debug_nesting;
+
+ for (i = 0; i < symbol_queue_index; ++i)
+ {
+ /* If we pushed queued symbols then such symbols are must be
+ output no matter what anyone else says. Specifically,
+ we need to make sure dbxout_symbol() thinks the symbol was
+ used and also we need to override TYPE_DECL_SUPPRESS_DEBUG
+ which may be set for outside reasons. */
+ int saved_tree_used = TREE_USED (symbol_queue[i]);
+ int saved_suppress_debug = TYPE_DECL_SUPPRESS_DEBUG (symbol_queue[i]);
+ TREE_USED (symbol_queue[i]) = 1;
+ TYPE_DECL_SUPPRESS_DEBUG (symbol_queue[i]) = 0;
+
+#ifdef DBX_DEBUGGING_INFO
+ dbxout_symbol (symbol_queue[i], 0);
+#endif
+
+ TREE_USED (symbol_queue[i]) = saved_tree_used;
+ TYPE_DECL_SUPPRESS_DEBUG (symbol_queue[i]) = saved_suppress_debug;
+ }
+
+ symbol_queue_index = 0;
+ --debug_nesting;
+}
+
+/* Queue a type symbol needed as part of the definition of a decl
+ symbol. These symbols are generated when debug_flush_symbol_queue()
+ is called. */
+
+void
+debug_queue_symbol (tree decl)
+{
+ if (symbol_queue_index >= symbol_queue_size)
+ {
+ symbol_queue_size += 10;
+ symbol_queue = xrealloc (symbol_queue,
+ symbol_queue_size * sizeof (tree));
+ }
+
+ symbol_queue[symbol_queue_index++] = decl;
+}
+
+/* Free symbol queue. */
+void
+debug_free_queue (void)
+{
+ if (symbol_queue)
+ {
+ free (symbol_queue);
+ symbol_queue = NULL;
+ symbol_queue_size = 0;
+ }
+}
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