From 725730f272e7ef4d05a6af48313c3cbdac636a5d Mon Sep 17 00:00:00 2001
From: Eric Botcazou <ebotcazou@gcc.gnu.org>
Date: Sun, 13 Sep 2009 10:46:11 +0000
Subject: [PATCH] tree.h (DECL_IGNORED_P): Document further effect for
FUNCTION_DECL.
* tree.h (DECL_IGNORED_P): Document further effect for FUNCTION_DECL.
* dbxout.c (dbxout_function_end): Do not test DECL_IGNORED_P.
(dbxout_begin_function): Likewise.
* final.c (dwarf2_debug_info_emitted_p): New predicate.
(final_start_function): Do not emit debug info if DECL_IGNORED_P is
set on the function.
(final_end_function): Likewise.
(final_scan_insn): Likewise.
(rest_of_handle_final): Likewise.
* varasm.c (assemble_start_function): Likewise.
* config/rs6000/xcoff.h (ASM_DECLARE_FUNCTION_NAME): Likewise.
From-SVN: r151670
---
gcc/ChangeLog | 16 ++++++++++-
gcc/config/rs6000/xcoff.h | 2 +-
gcc/dbxout.c | 8 ++----
gcc/final.c | 60 ++++++++++++++++++++++++++-------------
gcc/tree.h | 3 +-
gcc/varasm.c | 3 +-
6 files changed, 62 insertions(+), 30 deletions(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 9a4cf3f56c5e..a2016ed738e0 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,4 +1,18 @@
-2009-09-10 Jason Merrill <jason@redhat.com>
+2009-09-13 Eric Botcazou <ebotcazou@adacore.com>
+
+ * tree.h (DECL_IGNORED_P): Document further effect for FUNCTION_DECL.
+ * dbxout.c (dbxout_function_end): Do not test DECL_IGNORED_P.
+ (dbxout_begin_function): Likewise.
+ * final.c (dwarf2_debug_info_emitted_p): New predicate.
+ (final_start_function): Do not emit debug info if DECL_IGNORED_P is
+ set on the function.
+ (final_end_function): Likewise.
+ (final_scan_insn): Likewise.
+ (rest_of_handle_final): Likewise.
+ * varasm.c (assemble_start_function): Likewise.
+ * config/rs6000/xcoff.h (ASM_DECLARE_FUNCTION_NAME): Likewise.
+
+2009-09-12 Jason Merrill <jason@redhat.com>
* dbgcnt.c (dbg_cnt_process_single_pair): constify.
* opts.c (common_handle_option): constify.
diff --git a/gcc/config/rs6000/xcoff.h b/gcc/config/rs6000/xcoff.h
index 6560f319a25a..e5c47822355d 100644
--- a/gcc/config/rs6000/xcoff.h
+++ b/gcc/config/rs6000/xcoff.h
@@ -190,7 +190,7 @@
putc ('.', FILE); \
RS6000_OUTPUT_BASENAME (FILE, buffer); \
fputs (":\n", FILE); \
- if (write_symbols != NO_DEBUG) \
+ if (write_symbols != NO_DEBUG && !DECL_IGNORED_P (DECL)) \
xcoffout_declare_function (FILE, DECL, buffer); \
}
diff --git a/gcc/dbxout.c b/gcc/dbxout.c
index bc7965e25b8f..097b20be860e 100644
--- a/gcc/dbxout.c
+++ b/gcc/dbxout.c
@@ -902,7 +902,7 @@ dbxout_finish_complex_stabs (tree sym, stab_code_type code,
#if defined (DBX_DEBUGGING_INFO)
static void
-dbxout_function_end (tree decl)
+dbxout_function_end (tree decl ATTRIBUTE_UNUSED)
{
char lscope_label_name[100];
@@ -921,8 +921,7 @@ dbxout_function_end (tree decl)
named sections. */
if (!use_gnu_debug_info_extensions
|| NO_DBX_FUNCTION_END
- || !targetm.have_named_sections
- || DECL_IGNORED_P (decl))
+ || !targetm.have_named_sections)
return;
/* By convention, GCC will mark the end of a function with an N_FUN
@@ -3683,9 +3682,6 @@ dbxout_begin_function (tree decl)
{
int saved_tree_used1;
- if (DECL_IGNORED_P (decl))
- return;
-
saved_tree_used1 = TREE_USED (decl);
TREE_USED (decl) = 1;
if (DECL_NAME (DECL_RESULT (decl)) != 0)
diff --git a/gcc/final.c b/gcc/final.c
index d8ecc5177f04..3ecb415d7952 100644
--- a/gcc/final.c
+++ b/gcc/final.c
@@ -1484,6 +1484,20 @@ remap_debug_filename (const char *filename)
return ggc_strdup (s);
}
+/* Return true if DWARF2 debug info can be emitted for DECL. */
+
+static bool
+dwarf2_debug_info_emitted_p (tree decl)
+{
+ if (write_symbols != DWARF2_DEBUG && write_symbols != VMS_AND_DWARF2_DEBUG)
+ return false;
+
+ if (DECL_IGNORED_P (decl))
+ return false;
+
+ return true;
+}
+
/* Output assembler code for the start of a function,
and initialize some of the variables in this file
for the new function. The label for the function and associated
@@ -1508,10 +1522,11 @@ final_start_function (rtx first ATTRIBUTE_UNUSED, FILE *file,
high_block_linenum = high_function_linenum = last_linenum;
- (*debug_hooks->begin_prologue) (last_linenum, last_filename);
+ 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 (write_symbols != DWARF2_DEBUG && write_symbols != VMS_AND_DWARF2_DEBUG)
+ if (!dwarf2_debug_info_emitted_p (current_function_decl))
dwarf2out_begin_prologue (0, NULL);
#endif
@@ -1648,17 +1663,19 @@ final_end_function (void)
{
app_disable ();
- (*debug_hooks->end_function) (high_function_linenum);
+ if (!DECL_IGNORED_P (current_function_decl))
+ debug_hooks->end_function (high_function_linenum);
/* Finally, output the function epilogue:
code to restore the stack frame and return to the caller. */
targetm.asm_out.function_epilogue (asm_out_file, get_frame_size ());
/* And debug output. */
- (*debug_hooks->end_epilogue) (last_linenum, last_filename);
+ if (!DECL_IGNORED_P (current_function_decl))
+ debug_hooks->end_epilogue (last_linenum, last_filename);
#if defined (DWARF2_UNWIND_INFO)
- if (write_symbols != DWARF2_DEBUG && write_symbols != VMS_AND_DWARF2_DEBUG
+ if (!dwarf2_debug_info_emitted_p (current_function_decl)
&& dwarf2out_do_frame ())
dwarf2out_end_epilogue (last_linenum, last_filename);
#endif
@@ -1839,7 +1856,8 @@ final_scan_insn (rtx insn, FILE *file, int optimize ATTRIBUTE_UNUSED,
dwarf2out_switch_text_section ();
else
#endif
- (*debug_hooks->switch_text_section) ();
+ if (!DECL_IGNORED_P (current_function_decl))
+ debug_hooks->switch_text_section ();
switch_to_section (current_function_section ());
break;
@@ -1905,7 +1923,8 @@ final_scan_insn (rtx insn, FILE *file, int optimize ATTRIBUTE_UNUSED,
case NOTE_INSN_FUNCTION_BEG:
app_disable ();
- (*debug_hooks->end_prologue) (last_linenum, last_filename);
+ if (!DECL_IGNORED_P (current_function_decl))
+ debug_hooks->end_prologue (last_linenum, last_filename);
if ((*seen & (SEEN_EMITTED | SEEN_NOTE)) == SEEN_NOTE)
{
@@ -1931,7 +1950,8 @@ final_scan_insn (rtx insn, FILE *file, int optimize ATTRIBUTE_UNUSED,
high_block_linenum = last_linenum;
/* Output debugging info about the symbol-block beginning. */
- (*debug_hooks->begin_block) (last_linenum, n);
+ if (!DECL_IGNORED_P (current_function_decl))
+ debug_hooks->begin_block (last_linenum, n);
/* Mark this block as output. */
TREE_ASM_WRITTEN (NOTE_BLOCK (insn)) = 1;
@@ -1965,7 +1985,8 @@ final_scan_insn (rtx insn, FILE *file, int optimize ATTRIBUTE_UNUSED,
--block_depth;
gcc_assert (block_depth >= 0);
- (*debug_hooks->end_block) (high_block_linenum, n);
+ if (!DECL_IGNORED_P (current_function_decl))
+ debug_hooks->end_block (high_block_linenum, n);
}
if (write_symbols == DBX_DEBUG
|| write_symbols == SDB_DEBUG)
@@ -1995,7 +2016,8 @@ final_scan_insn (rtx insn, FILE *file, int optimize ATTRIBUTE_UNUSED,
break;
case NOTE_INSN_VAR_LOCATION:
- (*debug_hooks->var_location) (insn);
+ if (!DECL_IGNORED_P (current_function_decl))
+ debug_hooks->var_location (insn);
break;
default:
@@ -2038,8 +2060,8 @@ final_scan_insn (rtx insn, FILE *file, int optimize ATTRIBUTE_UNUSED,
CC_STATUS_INIT;
#endif
- if (LABEL_NAME (insn))
- (*debug_hooks->label) (insn);
+ if (!DECL_IGNORED_P (current_function_decl) && LABEL_NAME (insn))
+ debug_hooks->label (insn);
app_disable ();
@@ -2193,13 +2215,10 @@ final_scan_insn (rtx insn, FILE *file, int optimize ATTRIBUTE_UNUSED,
}
/* Output this line note if it is the first or the last line
note in a row. */
- if (notice_source_line (insn, &is_stmt))
- {
- (*debug_hooks->source_line) (last_linenum,
- last_filename,
- last_discriminator,
- is_stmt);
- }
+ if (!DECL_IGNORED_P (current_function_decl)
+ && notice_source_line (insn, &is_stmt))
+ (*debug_hooks->source_line) (last_linenum, last_filename,
+ last_discriminator, is_stmt);
if (GET_CODE (body) == ASM_INPUT)
{
@@ -4261,7 +4280,8 @@ rest_of_handle_final (void)
*will* be routed past here. */
timevar_push (TV_SYMOUT);
- (*debug_hooks->function_decl) (current_function_decl);
+ if (!DECL_IGNORED_P (current_function_decl))
+ debug_hooks->function_decl (current_function_decl);
timevar_pop (TV_SYMOUT);
/* Release the blocks that are linked to DECL_INITIAL() to free the memory. */
diff --git a/gcc/tree.h b/gcc/tree.h
index 7b431af6199d..45391d3fb949 100644
--- a/gcc/tree.h
+++ b/gcc/tree.h
@@ -2539,7 +2539,8 @@ struct GTY(()) tree_decl_minimal {
(DECL_COMMON_CHECK (NODE)->decl_common.debug_expr_is_from)
/* Nonzero for a given ..._DECL node means that the name of this node should
- be ignored for symbolic debug purposes. */
+ be ignored for symbolic debug purposes. Moreover, for a FUNCTION_DECL,
+ the body of the function should also be ignored. */
#define DECL_IGNORED_P(NODE) (DECL_COMMON_CHECK (NODE)->decl_common.ignored_flag)
/* Nonzero for a given ..._DECL node means that this node represents an
diff --git a/gcc/varasm.c b/gcc/varasm.c
index a7fa83fc1074..f8cc2914693b 100644
--- a/gcc/varasm.c
+++ b/gcc/varasm.c
@@ -1749,7 +1749,8 @@ assemble_start_function (tree decl, const char *fnname)
ASM_OUTPUT_FUNCTION_PREFIX (asm_out_file, fnname);
#endif
- (*debug_hooks->begin_function) (decl);
+ if (!DECL_IGNORED_P (decl))
+ (*debug_hooks->begin_function) (decl);
/* Make function name accessible from other files, if appropriate. */
--
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