tree.h (DECL_HAS_IMPLICIT_SECTION_NAME_P): New macro.

	* tree.h (DECL_HAS_IMPLICIT_SECTION_NAME_P): New macro.
	(tree_decl_with_vis): Add implicit_section_name_p.
	* targhooks.h (default_function_section): Declare.
	* target.def (function_section): New hook.
	* defaults.h (HOT_TEXT_SECTION_NAME,
	UNLIKELY_EXECUTED_TEXT_SECTION_NAME): Remove.
	* predict.c (choose_function_section): Remove.
	(estimate_bb_frequencies): Do not use choose_function_section.
	* coretypes.h (enum node_frequency): Move here from cgraph.h
	* cgraph.h (enum node_frequency): Remove.
	* varasm.c (initialize_cold_section_name, unlikely_text_section,
	unlikely_text_section_p): Remove.
	(named_subsection_entry): New structure.
	(get_text_section): New function.
	(default_function_section): New function.
	(function_section_1): Break out from ...; handle profile info.
	(function_section): ... here.
	(unlikely_text_section): Remove.
	(unlikely_text_section_p): Use function_section_1.
	(assemble_start_function): Do not initialize cold section.
	(default_section_type_flags): Do not special case cold subsection.
	(switch_to_section): Likewise.
	* output.h (get_text_section): Define.
	* config/i386/winnt.c: Do not special case cold section.
	* config/darwin-protos.h (darwin_function_section): Declare.
	* config/microblaze/microblaze.h (HOT_TEXT_SECTION_NAME,
	UNLIKELY_EXECUTED_TEXT_SECTION_NAME): Remove.
	* config/ia64/hpux.h (HOT_TEXT_SECTION_NAME,
	UNLIKELY_EXECUTED_TEXT_SECTION_NAME): Remove.
	(TARGET_ASM_FUNCTION_SECTION): Define to ia64_hpux_function_section.
	* config/ia64/ia64.c (ia64_hpux_function_section): New function.
	* config/darwin.c (machopic_select_section): Use
	darwin_function_section.
	(darwin_function_section): New function.
	* config/darwin.h (HOT_TEXT_SECTION_NAME,
	UNLIKELY_EXECUTED_TEXT_SECTION_NAME): Remove.
	(TARGET_ASM_FUNCTION_SECTION): Define.
	* system.h (HOT_TEXT_SECTION_NAME,
	UNLIKELY_EXECUTED_TEXT_SECTION_NAME): Poison.

From-SVN: r167085

2 files changed, 20 insertions, 0 deletions

diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi
index fd3f426..b58ee7b 100644
--- a/gcc/doc/tm.texi
+++ b/gcc/doc/tm.texi
@@ -7328,6 +7328,16 @@ is non-NULL, it is the @code{VAR_DECL} or @code{FUNCTION_DECL} with which
 this section is associated.
 @end deftypefn
 
+@deftypefn {Target Hook} {section *} TARGET_ASM_FUNCTION_SECTION (tree @var{decl}, enum node_frequency @var{freq}, bool @var{startup}, bool @var{exit})
+Return preferred text (sub)section for function @var{decl}.
+Main purpose of this function is to separate cold, normal and hot
+functions. @var{startup} is true when function is known to be used only 
+at startup (from static constructors or it is @code{main()}).
+@var{exit} is true when function is known to be used only at exit
+(from static destructors).
+Return NULL if function should go to default text section.
+@end deftypefn
+
 @deftypevr {Target Hook} bool TARGET_HAVE_NAMED_SECTIONS
 This flag is true if the target supports @code{TARGET_ASM_NAMED_SECTION}.
 @end deftypevr
diff --git a/gcc/doc/tm.texi.in b/gcc/doc/tm.texi.in
index ea4c843..f230307 100644
--- a/gcc/doc/tm.texi.in
+++ b/gcc/doc/tm.texi.in
@@ -7303,6 +7303,16 @@ is non-NULL, it is the @code{VAR_DECL} or @code{FUNCTION_DECL} with which
 this section is associated.
 @end deftypefn
 
+@hook TARGET_ASM_FUNCTION_SECTION
+Return preferred text (sub)section for function @var{decl}.
+Main purpose of this function is to separate cold, normal and hot
+functions. @var{startup} is true when function is known to be used only 
+at startup (from static constructors or it is @code{main()}).
+@var{exit} is true when function is known to be used only at exit
+(from static destructors).
+Return NULL if function should go to default text section.
+@end deftypefn
+
 @hook TARGET_HAVE_NAMED_SECTIONS
 This flag is true if the target supports @code{TARGET_ASM_NAMED_SECTION}.
 @end deftypevr