#include "intl.h"
#include "basic-block.h"
#include "target.h"
+#include "targhooks.h"
#include "debug.h"
#include "expr.h"
#include "cfglayout.h"
declarations for e.g. AIX 4.x. */
#endif
-#if defined (DWARF2_UNWIND_INFO) || defined (DWARF2_DEBUGGING_INFO)
#include "dwarf2out.h"
-#endif
#ifdef DBX_DEBUGGING_INFO
#include "dbxout.h"
#include "sdbout.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. */
+/* Most ports that aren't using cc0 don't need to define CC_STATUS_INIT.
+ So define a null default for it to save conditionalization later. */
#ifndef CC_STATUS_INIT
#define CC_STATUS_INIT
#endif
{
}
+void
+default_function_switched_text_sections (FILE *file ATTRIBUTE_UNUSED,
+ tree decl ATTRIBUTE_UNUSED,
+ bool new_is_cold ATTRIBUTE_UNUSED)
+{
+}
+
/* Default target hook that outputs nothing to a stream. */
void
no_asm_to_stream (FILE *file ATTRIBUTE_UNUSED)
#define LABEL_ALIGN(LABEL) align_labels_log
#endif
-#ifndef LABEL_ALIGN_MAX_SKIP
-#define LABEL_ALIGN_MAX_SKIP align_labels_max_skip
-#endif
-
#ifndef LOOP_ALIGN
#define LOOP_ALIGN(LABEL) align_loops_log
#endif
-#ifndef LOOP_ALIGN_MAX_SKIP
-#define LOOP_ALIGN_MAX_SKIP align_loops_max_skip
-#endif
-
#ifndef LABEL_ALIGN_AFTER_BARRIER
#define LABEL_ALIGN_AFTER_BARRIER(LABEL) 0
#endif
-#ifndef LABEL_ALIGN_AFTER_BARRIER_MAX_SKIP
-#define LABEL_ALIGN_AFTER_BARRIER_MAX_SKIP 0
-#endif
-
#ifndef JUMP_ALIGN
#define JUMP_ALIGN(LABEL) align_jumps_log
#endif
-#ifndef JUMP_ALIGN_MAX_SKIP
-#define JUMP_ALIGN_MAX_SKIP align_jumps_max_skip
-#endif
+int
+default_label_align_after_barrier_max_skip (rtx insn ATTRIBUTE_UNUSED)
+{
+ return 0;
+}
+
+int
+default_loop_align_max_skip (rtx insn ATTRIBUTE_UNUSED)
+{
+ return align_loops_max_skip;
+}
+
+int
+default_label_align_max_skip (rtx insn ATTRIBUTE_UNUSED)
+{
+ return align_labels_max_skip;
+}
+
+int
+default_jump_align_max_skip (rtx insn ATTRIBUTE_UNUSED)
+{
+ return align_jumps_max_skip;
+}
#ifndef ADDR_VEC_ALIGN
static int
{
dump_flow_info (dump_file, TDF_DETAILS);
flow_loops_dump (dump_file, NULL, 1);
- loop_optimizer_init (AVOID_CFG_MODIFICATIONS);
}
+ loop_optimizer_init (AVOID_CFG_MODIFICATIONS);
FOR_EACH_BB (bb)
if (bb->frequency > freq_max)
freq_max = bb->frequency;
continue;
}
max_log = LABEL_ALIGN (label);
- max_skip = LABEL_ALIGN_MAX_SKIP;
+ max_skip = targetm.asm_out.label_align_max_skip (label);
FOR_EACH_EDGE (e, ei, bb->preds)
{
if (max_log < log)
{
max_log = log;
- max_skip = JUMP_ALIGN_MAX_SKIP;
+ max_skip = targetm.asm_out.jump_align_max_skip (label);
}
}
/* In case block is frequent and reached mostly by non-fallthru edge,
if (max_log < log)
{
max_log = log;
- max_skip = LOOP_ALIGN_MAX_SKIP;
+ max_skip = targetm.asm_out.loop_align_max_skip (label);
}
}
LABEL_TO_ALIGNMENT (label) = max_log;
LABEL_TO_MAX_SKIP (label) = max_skip;
}
- if (dump_file)
- {
- loop_optimizer_finalize ();
- free_dominance_info (CDI_DOMINATORS);
- }
+ loop_optimizer_finalize ();
+ free_dominance_info (CDI_DOMINATORS);
return 0;
}
if (max_log < log)
{
max_log = log;
- max_skip = LABEL_ALIGN_MAX_SKIP;
+ max_skip = targetm.asm_out.label_align_max_skip (insn);
}
}
/* ADDR_VECs only take room if read-only data goes into the text
if (max_log < log)
{
max_log = log;
- max_skip = LABEL_ALIGN_MAX_SKIP;
+ max_skip = targetm.asm_out.label_align_max_skip (insn);
}
}
LABEL_TO_ALIGNMENT (insn) = max_log;
if (max_log < log)
{
max_log = log;
- max_skip = LABEL_ALIGN_AFTER_BARRIER_MAX_SKIP;
+ max_skip = targetm.asm_out.label_align_after_barrier_max_skip (label);
}
break;
}
size_t name_len;
for (map = debug_prefix_maps; map; map = map->next)
- if (strncmp (filename, map->old_prefix, map->old_len) == 0)
+ if (filename_ncmp (filename, map->old_prefix, map->old_len) == 0)
break;
if (!map)
return filename;
FIRST is the first insn of the rtl for the function being compiled.
FILE is the file to write assembler code to.
- OPTIMIZE is nonzero if we should eliminate redundant
+ OPTIMIZE_P is nonzero if we should eliminate redundant
test and compare insns. */
void
final_start_function (rtx first ATTRIBUTE_UNUSED, FILE *file,
- int optimize ATTRIBUTE_UNUSED)
+ int optimize_p ATTRIBUTE_UNUSED)
{
block_depth = 0;
if (!DECL_IGNORED_P (current_function_decl))
debug_hooks->begin_prologue (last_linenum, last_filename);
-#if defined (DWARF2_UNWIND_INFO) || defined (TARGET_UNWIND_INFO)
if (!dwarf2_debug_info_emitted_p (current_function_decl))
dwarf2out_begin_prologue (0, NULL);
-#endif
#ifdef LEAF_REG_REMAP
if (current_function_uses_only_leaf_regs)
/* The Sun386i and perhaps other machines don't work right
if the profiling code comes after the prologue. */
-#ifdef PROFILE_BEFORE_PROLOGUE
- if (crtl->profile)
+ if (targetm.profile_before_prologue () && crtl->profile)
profile_function (file);
-#endif /* PROFILE_BEFORE_PROLOGUE */
-#if defined (DWARF2_UNWIND_INFO) && defined (HAVE_prologue)
+#if defined (HAVE_prologue)
if (dwarf2out_do_frame ())
dwarf2out_frame_debug (NULL_RTX, false);
#endif
static void
profile_after_prologue (FILE *file ATTRIBUTE_UNUSED)
{
-#ifndef PROFILE_BEFORE_PROLOGUE
- if (crtl->profile)
+ if (!targetm.profile_before_prologue () && crtl->profile)
profile_function (file);
-#endif /* not PROFILE_BEFORE_PROLOGUE */
}
static void
if (!DECL_IGNORED_P (current_function_decl))
debug_hooks->end_epilogue (last_linenum, last_filename);
-#if defined (DWARF2_UNWIND_INFO)
if (!dwarf2_debug_info_emitted_p (current_function_decl)
&& dwarf2out_do_frame ())
dwarf2out_end_epilogue (last_linenum, last_filename);
-#endif
}
\f
/* Output assembler code for some insns: all or part of a function.
For description of args, see `final_start_function', above. */
void
-final (rtx first, FILE *file, int optimize)
+final (rtx first, FILE *file, int optimize_p)
{
rtx insn;
int max_uid = 0;
#ifdef HAVE_cc0
/* If CC tracking across branches is enabled, record the insn which
jumps to each branch only reached from one place. */
- if (optimize && JUMP_P (insn))
+ if (optimize_p && JUMP_P (insn))
{
rtx lab = JUMP_LABEL (insn);
if (lab && LABEL_NUSES (lab) == 1)
insn_current_address = INSN_ADDRESSES (INSN_UID (insn));
#endif /* HAVE_ATTR_length */
- insn = final_scan_insn (insn, file, optimize, 0, &seen);
+ insn = final_scan_insn (insn, file, optimize_p, 0, &seen);
}
}
\f
first. */
rtx
-final_scan_insn (rtx insn, FILE *file, int optimize ATTRIBUTE_UNUSED,
+final_scan_insn (rtx insn, FILE *file, int optimize_p ATTRIBUTE_UNUSED,
int nopeepholes ATTRIBUTE_UNUSED, int *seen)
{
#ifdef HAVE_cc0
case NOTE_INSN_SWITCH_TEXT_SECTIONS:
in_cold_section_p = !in_cold_section_p;
-#ifdef DWARF2_UNWIND_INFO
+
if (dwarf2out_do_frame ())
dwarf2out_switch_text_section ();
- else
-#endif
- if (!DECL_IGNORED_P (current_function_decl))
+ else if (!DECL_IGNORED_P (current_function_decl))
debug_hooks->switch_text_section ();
switch_to_section (current_function_section ());
+ targetm.asm_out.function_switched_text_sections (asm_out_file,
+ current_function_decl,
+ in_cold_section_p);
break;
case NOTE_INSN_BASIC_BLOCK:
-#ifdef TARGET_UNWIND_INFO
- targetm.asm_out.unwind_emit (asm_out_file, insn);
-#endif
+ if (targetm.asm_out.unwind_emit)
+ targetm.asm_out.unwind_emit (asm_out_file, insn);
if (flag_debug_asm)
fprintf (asm_out_file, "\t%s basic block %d\n",
break;
case NOTE_INSN_EPILOGUE_BEG:
-#if defined (DWARF2_UNWIND_INFO) && defined (HAVE_epilogue)
+#if defined (HAVE_epilogue)
if (dwarf2out_do_frame ())
dwarf2out_cfi_begin_epilogue (insn);
#endif
break;
case NOTE_INSN_CFA_RESTORE_STATE:
-#if defined (DWARF2_UNWIND_INFO)
dwarf2out_frame_debug_restore_state ();
-#endif
break;
case NOTE_INSN_FUNCTION_BEG:
break;
case BARRIER:
-#if defined (DWARF2_UNWIND_INFO)
if (dwarf2out_do_frame ())
dwarf2out_frame_debug (insn, false);
-#endif
break;
case CODE_LABEL:
#endif
}
}
-#ifdef HAVE_cc0
CC_STATUS_INIT;
-#endif
if (!DECL_IGNORED_P (current_function_decl) && LABEL_NAME (insn))
debug_hooks->label (insn);
/* 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), false);
-#endif
/* The first insn in this SEQUENCE might be a JUMP_INSN that will
force the restoration of a comparison that was previously
and the next statement should reexamine the variable
to compute the condition codes. */
- if (optimize)
+ if (optimize_p)
{
if (set
&& GET_CODE (SET_DEST (set)) == CC0
#ifdef HAVE_peephole
/* Do machine-specific peephole optimizations if desired. */
- if (optimize && !flag_no_peephole && !nopeepholes)
+ if (optimize_p && !flag_no_peephole && !nopeepholes)
{
rtx next = peephole (insn);
/* When peepholing, if there were notes within the peephole,
for (note = NEXT_INSN (insn); note != next;
note = NEXT_INSN (note))
- final_scan_insn (note, file, optimize, nopeepholes, seen);
+ final_scan_insn (note, file, optimize_p, nopeepholes, seen);
/* Put the notes in the proper position for a later
rescan. For example, the SH target can do this
current_output_insn = debug_insn = insn;
-#if defined (DWARF2_UNWIND_INFO)
if (CALL_P (insn) && dwarf2out_do_frame ())
dwarf2out_frame_debug (insn, false);
-#endif
/* Find the proper template for this insn. */
templ = get_insn_template (insn_code_number, insn);
return new_rtx;
}
-#ifdef TARGET_UNWIND_INFO
/* ??? This will put the directives in the wrong place if
get_insn_template outputs assembly directly. However calling it
before get_insn_template breaks if the insns is split. */
- targetm.asm_out.unwind_emit (asm_out_file, insn);
-#endif
+ if (targetm.asm_out.unwind_emit_before_insn
+ && targetm.asm_out.unwind_emit)
+ targetm.asm_out.unwind_emit (asm_out_file, insn);
if (CALL_P (insn))
{
/* 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 (final_sequence == 0
#if !defined (HAVE_prologue)
&& !ACCUMULATE_OUTGOING_ARGS
#endif
&& dwarf2out_do_frame ())
dwarf2out_frame_debug (insn, true);
-#endif
+
+ if (!targetm.asm_out.unwind_emit_before_insn
+ && targetm.asm_out.unwind_emit)
+ targetm.asm_out.unwind_emit (asm_out_file, insn);
current_output_insn = debug_insn = 0;
}
break;
default:
-#ifdef OUTPUT_ADDR_CONST_EXTRA
- OUTPUT_ADDR_CONST_EXTRA (file, x, fail);
- break;
+ if (targetm.asm_out.output_addr_const_extra (file, x))
+ break;
- fail:
-#endif
output_operand_lossage ("invalid expression as operand");
}
}
\f
+/* Output a quoted string. */
+
+void
+output_quoted_string (FILE *asm_file, const char *string)
+{
+#ifdef OUTPUT_QUOTED_STRING
+ OUTPUT_QUOTED_STRING (asm_file, string);
+#else
+ char c;
+
+ putc ('\"', asm_file);
+ while ((c = *string++) != 0)
+ {
+ if (ISPRINT (c))
+ {
+ if (c == '\"' || c == '\\')
+ putc ('\\', asm_file);
+ putc (c, asm_file);
+ }
+ else
+ fprintf (asm_file, "\\%03o", (unsigned char) c);
+ }
+ putc ('\"', asm_file);
+#endif
+}
+\f
/* A poor man's fprintf, with the added features of %I, %R, %L, and %U.
%R prints the value of REGISTER_PREFIX.
%L prints the value of LOCAL_LABEL_PREFIX.
Sign extend each half to HOST_WIDE_INT. */
unsigned HOST_WIDE_INT low, high;
unsigned HOST_WIDE_INT mask, sign_bit, sign_extend;
+ unsigned bits_per_word = BITS_PER_WORD;
/* Set sign_bit to the most significant bit of a word. */
sign_bit = 1;
- sign_bit <<= BITS_PER_WORD - 1;
+ sign_bit <<= bits_per_word - 1;
/* Set mask so that all bits of the word are set. We could
have used 1 << BITS_PER_WORD instead of basing the
/* Pick the higher word, shifted to the least significant
bits, and sign-extend it. */
high = INTVAL (value);
- high >>= BITS_PER_WORD - 1;
+ high >>= bits_per_word - 1;
high >>= 1;
high &= mask;
if (high & sign_bit)
final (get_insns (), asm_out_file, optimize);
final_end_function ();
-#ifdef TARGET_UNWIND_INFO
- /* ??? The IA-64 ".handlerdata" directive must be issued before
- the ".endp" directive that closes the procedure descriptor. */
+ /* The IA-64 ".handlerdata" directive must be issued before the ".endp"
+ directive that closes the procedure descriptor. Similarly, for x64 SEH.
+ Otherwise it's not strictly necessary, but it doesn't hurt either. */
output_function_exception_table (fnname);
-#endif
assemble_end_function (current_function_decl, fnname);
-#ifndef TARGET_UNWIND_INFO
- /* Otherwise, it feels unclean to switch sections in the middle. */
- output_function_exception_table (fnname);
-#endif
-
user_defined_section_attribute = false;
/* Free up reg info memory. */
if (LABEL_P (insn))
INSN_UID (insn) = CODE_LABEL_NUMBER (insn);
else
- INSN_UID (insn) = 0;
+ {
+ if (NOTE_P (insn))
+ set_block_for_insn (insn, NULL);
+ INSN_UID (insn) = 0;
+ }
}
}
&& NOTE_KIND (insn) != NOTE_INSN_BLOCK_END
&& NOTE_KIND (insn) != NOTE_INSN_CFA_RESTORE_STATE)))
print_rtl_single (final_output, insn);
-
}
if (final_output)
delete_tree_ssa ();
- if (targetm.binds_local_p (current_function_decl))
+ /* We can reduce stack alignment on call site only when we are sure that
+ the function body just produced will be actually used in the final
+ executable. */
+ if (decl_binds_to_current_def_p (current_function_decl))
{
unsigned int pref = crtl->preferred_stack_boundary;
if (crtl->stack_alignment_needed > crtl->preferred_stack_boundary)
OSDN Git Service
