add lto to powerpc-*darwin and enable for 32bit darwin

Steven Bosscher  <steven@gcc.gnu.org>
ChangeLog:
	* configure.ac (--enable-lto): All *-apple-darwin* now support LTO.
	* configure: Regenerate.

gcc/ChangeLog:
	* config.gcc (powerpc-*-darwin*, powerpc64-*-darwin*): Add
	lto-macho as lto_binary_reader.

	* darwin.c (darwin_asm_named_section): Do not add assembler comment
	after .section directive; just print it before the directive instead.



M    gcc/config.gcc
M    gcc/config/darwin.c
M    ChangeLog
M    gcc/ChangeLog

From-SVN: r159527

ChangeLog

+2010-05-18  Steven Bosscher  <steven@gcc.gnu.org>
+
+	* configure.ac (--enable-lto): All *-apple-darwin* now support LTO.
+	* configure: Regenerate.
+
 2010-05-12  Sriraman Tallam  <tmsriram@google.com>
 
 	* MAINTAINERS (Write After Approval): Add myself.

configure

@@ -6686,7 +6686,7 @@ else
   # -flto it won't be needed until after installation anyway.
     case $target in
       *-cygwin*|*-mingw*) ;;
-      x86_64-apple-darwin*) ;;
+      *-apple-darwin*) ;;
       *) if test x"$enable_lto" = x"yes"; then
 	as_fn_error "LTO support is not enabled for this target." "$LINENO" 5
         fi

configure.ac

@@ -1803,7 +1803,7 @@ fi],[if test x"$default_enable_lto" = x"yes" ; then
   # -flto it won't be needed until after installation anyway.
     case $target in
       *-cygwin*|*-mingw*) ;;
-      x86_64-apple-darwin*) ;;
+      *-apple-darwin*) ;;
       *) if test x"$enable_lto" = x"yes"; then
 	AC_MSG_ERROR([LTO support is not enabled for this target.])
         fi

gcc/ChangeLog

+2010-05-18  Steven Bosscher  <steven@gcc.gnu.org>
+
+	* config.gcc (powerpc-*-darwin*, powerpc64-*-darwin*): Add
+	lto-macho as lto_binary_reader.
+
+	* darwin.c (darwin_asm_named_section): Do not add assembler comment
+	after .section directive; just print it before the directive instead.
+
 2010-05-17  Jan Hubicka  <jh@suse.cz>
 
 	* cgraph.c (cgraph_create_virtual_clone): Only check

gcc/config.gcc

@@ -1891,12 +1891,14 @@ powerpc-*-darwin*)
 	  *-darwin[0-6]*)
 	    ;;
 	esac
+	lto_binary_reader=lto-macho
 	extra_headers=altivec.h
 	;;
 powerpc64-*-darwin*)
 	tm_file="${tm_file} ${cpu_type}/darwin8.h ${cpu_type}/darwin64.h"
 	extra_options="${extra_options} ${cpu_type}/darwin.opt"
 	# We're omitting t-darwin8 to avoid building any multilibs
+	lto_binary_reader=lto-macho
 	extra_headers=altivec.h
 	;;
 powerpc*-*-freebsd*)

gcc/config/darwin.c

@@ -1460,8 +1460,9 @@ darwin_asm_named_section (const char *name,
       obstack_grow (&lto_section_names_obstack, "\\0\"\n", 4);
 
       /* Output the dummy section name.  */
-      fprintf (asm_out_file, "\t.section %s,__%08X,regular,debug\t# %s\n",
-	       LTO_SEGMENT_NAME, lto_section_names_offset, name);
+      fprintf (asm_out_file, "\t# %s\n", name);
+      fprintf (asm_out_file, "\t.section %s,__%08X,regular,debug\n",
+	       LTO_SEGMENT_NAME, lto_section_names_offset);
 
       /* Update the offset for the next section name.  Make sure we stay
 	 within reasonable length.  */