quick import of gcc-3.3.6 and gcc-3.4.4

Use the patch by Carl Miller <chaz@energoncube.net> for powerpc, with

some minor modifications.  Changed *os_uclibc to *os_linux_uclibc since

at some point we might support other platforms.  Also updated to 3.3.3.

diff -urN gcc-3.3.3/gcc/config/rs6000/linux.h gcc-3.3.3-new/gcc/config/rs6000/linux.h

--- gcc-3.3.3/gcc/config/rs6000/linux.h	2003-11-14 00:46:10.000000000 -0600

+++ gcc-3.3.3-new/gcc/config/rs6000/linux.h	2004-02-16 21:13:40.000000000 -0600

@@ -64,7 +64,11 @@

 #define LINK_START_DEFAULT_SPEC "%(link_start_linux)"

 #undef	LINK_OS_DEFAULT_SPEC

+#ifdef USE_UCLIBC

+#define LINK_OS_DEFAULT_SPEC "%(link_os_linux_uclibc)"

+#else

 #define LINK_OS_DEFAULT_SPEC "%(link_os_linux)"

+#endif

 #undef TARGET_VERSION

 #define TARGET_VERSION fprintf (stderr, " (PowerPC GNU/Linux)");

diff -urN gcc-3.3.3/gcc/config/rs6000/sysv4.h gcc-3.3.3-new/gcc/config/rs6000/sysv4.h

--- gcc-3.3.3/gcc/config/rs6000/sysv4.h	2003-10-28 13:55:41.000000000 -0600

+++ gcc-3.3.3-new/gcc/config/rs6000/sysv4.h	2004-02-16 21:13:40.000000000 -0600

@@ -968,9 +968,11 @@

 %{mcall-linux: %(link_os_linux) } \

 %{mcall-gnu: %(link_os_gnu) } \

 %{mcall-netbsd: %(link_os_netbsd) } \

+%{mcall-uclibc: %(link_os_linux_uclibc) } \

 %{!mads: %{!myellowknife: %{!mmvme: %{!msim: %{!mwindiss: \

          %{!mcall-freebsd: %{!mcall-linux: %{!mcall-gnu: \

-         %{!mcall-netbsd: %(link_os_default) }}}}}}}}}"

+         %{!mcall-netbsd: %{!mcall-uclibc: \

+         %(link_os_default) }}}}}}}}}}"

 #define LINK_OS_DEFAULT_SPEC ""

@@ -1307,6 +1309,12 @@

 #define LINK_OS_WINDISS_SPEC ""

+/* uClibc support for Linux. */

+

+#define LINK_OS_LINUX_UCLIBC_SPEC "-m elf32ppclinux %{!shared: %{!static: \

+  %{rdynamic:-export-dynamic} \

+  %{!dynamic-linker:-dynamic-linker /lib/ld-uClibc.so.0}}}"

+

 /* Define any extra SPECS that the compiler needs to generate.  */

 /* Override rs6000.h definition.  */

 #undef	SUBTARGET_EXTRA_SPECS

@@ -1372,6 +1380,7 @@

   { "link_os_netbsd",		LINK_OS_NETBSD_SPEC },			\

   { "link_os_vxworks",		LINK_OS_VXWORKS_SPEC },			\

   { "link_os_windiss",		LINK_OS_WINDISS_SPEC },			\

+  { "link_os_linux_uclibc",	LINK_OS_LINUX_UCLIBC_SPEC },		\

   { "link_os_default",		LINK_OS_DEFAULT_SPEC },			\

   { "cc1_endian_big",		CC1_ENDIAN_BIG_SPEC },			\

   { "cc1_endian_little",	CC1_ENDIAN_LITTLE_SPEC },		\

--- gcc-3.3.2-old/configure.in	2003-08-09 01:57:21.000000000 -0500

+++ gcc-3.3.2/configure.in	2004-01-15 12:46:29.000000000 -0600

@@ -1418,6 +1418,11 @@

 fi

 FLAGS_FOR_TARGET=

+case " $targargs " in

+ *" --nfp "* | *" --without-float "*)

+    FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -msoft-float'

+    ;;

+esac

 case " $target_configdirs " in

  *" newlib "*)

   case " $targargs " in

--- gcc/gcc/loop.c	14 Feb 2004 14:46:03 -0000	1.488.2.3

+++ gcc/gcc/loop.c	28 Apr 2004 22:02:53 -0000

@@ -929,6 +929,7 @@

 			  || (! (GET_CODE (SET_SRC (set)) == REG

 				 && (REGNO (SET_SRC (set))

 				     < FIRST_PSEUDO_REGISTER))))

+		      && regno >= FIRST_PSEUDO_REGISTER 

 		      /* This test is not redundant; SET_SRC (set) might be

 			 a call-clobbered register and the life of REGNO

 			 might span a call.  */