Avoid use of "register" as optimization hint.

ChangeLog

@@ -1,3 +1,148 @@
+2013-06-07  Joseph Myers  <joseph@codesourcery.com>
+
+	* bits/byteswap.h [__GNUC__ && !__GNUC_PREREQ (4, 3)]
+	(__bswap_32): Do not use "register".
+	* crypt/crypt.c (_ufc_doit_r): Likewise.
+	* debug/stpcpy_chk.c (__stpcpy_chk): Likewise.
+	* debug/wcscat_chk.c (__wcscat_chk): Likewise.
+	* gmon/gmon.c (__monstartup): Likewise.
+	* gmon/mcount.c (_MCOUNT_DECL(frompc, selfpc)): Likewise.
+	* hurd/hurdmalloc.c (more_memory): Likewise.
+	(malloc): Likewise.
+	(free): Likewise.
+	(realloc): Likewise.
+	(malloc_fork_prepare): Likewise.
+	(malloc_fork_parent): Likewise.
+	(malloc_fork_child): Likewise.
+	* include/rpc/auth_des.h (xdr_authdes_verf): Likewise.
+	(_svcauth_des): Likewise.
+	* inet/inet_lnaof.c (inet_lnaof): Likewise.
+	* inet/inet_net.c (inet_network): Likewise.
+	* inet/inet_netof.c (inet_netof): Likewise.
+	* inet/rcmd.c (__validuser2_sa): Likewise.
+	* io/fts.c (fts_open): Likewise.
+	(fts_load): Likewise.
+	(fts_close): Likewise.
+	(fts_read): Likewise.
+	(fts_children): Likewise.
+	(fts_build): Likewise.
+	(fts_stat): Likewise.
+	(fts_sort): Likewise.
+	(fts_alloc): Likewise.
+	(fts_lfree): Likewise.
+	* libio/fileops.c (_IO_new_file_xsputn): Likewise.
+	(_IO_file_xsgetn): Likewise.
+	(_IO_file_xsgetn_mmap): Likewise.
+	* libio/iofopncook.c (_IO_cookie_read): Likewise.
+	(_IO_cookie_write): Likewise.
+	* libio/oldfileops.c (_IO_old_file_xsputn): Likewise.
+	* libio/wfileops.c (_IO_wfile_xsputn): Likewise.
+	* mach/msgserver.c (__mach_msg_server_timeout): Likewise.
+	* malloc/obstack.c (_obstack_begin): Likewise.
+	(_obstack_begin_1): Likewise.
+	(_obstack_newchunk): Likewise.
+	(_obstack_allocated_p): Likewise.
+	(obstack_free): Likewise.
+	(_obstack_memory_used): Likewise.
+	* misc/getttyent.c (getttynam): Likewise.
+	(getttyent): Likewise.
+	(skip): Likewise.
+	(value): Likewise.
+	* misc/getusershell.c (initshells): Likewise.
+	* misc/syslog.c (__vsyslog_chk): Likewise.
+	* misc/ttyslot.c (ttyslot): Likewise.
+	* nis/nis_hash.c (__nis_hash): Likewise.
+	* posix/fnmatch_loop.c (FCT): Likewise.
+	* posix/getconf.c (print_all): Likewise.
+	(main): Likewise.
+	* posix/getopt.c (exchange): Likewise.
+	* posix/glob.c (globfree): Likewise.
+	(prefix_array): Likewise.
+	(__glob_pattern_type): Likewise.
+	* resolv/arpa/nameser.h (NS_GET16): Likewise.
+	(NS_GET32): Likewise.
+	(NS_PUT16): Likewise.
+	(NS_PUT32): Likewise.
+	* resolv/gethnamaddr.c (getanswer): Likewise.
+	(gethostbyname2): Likewise.
+	(gethostbyaddr): Likewise.
+	(_gethtent): Likewise.
+	(_gethtbyname2): Likewise.
+	(_gethtbyaddr): Likewise.
+	* resolv/ns_print.c (dst_s_get_int16): Likewise.
+	* resolv/nss_dns/dns-host.c (getanswer_r): Likewise.
+	* resolv/res_init.c (__res_vinit): Likewise.
+	(net_mask): Likewise.
+	* resolv/res_mkquery.c (outchar): Likewise.
+	(PRINT): Likewise.
+	* stdio-common/printf_fp.c (outchar): Likewise.
+	(PRINT): Likewise.
+	* stdio-common/printf_fphex.c (outchar): Likewise.
+	(PRINT): Likewise.
+	* stdio-common/printf_size.c (outchar): Likewise.
+	(PRINT): Likewise.
+	* stdio-common/test_rdwr.c (main): Likewise.
+	* stdio-common/tfformat.c (matches): Likewise.
+	* stdio-common/vfprintf.c (outchar): Likewise.
+	(printf_unknown): Likewise.
+	(buffered_vfprintf): Likewise.
+	* stdio-common/vfscanf.c (_IO_vfscanf_internal): Likewise.
+	* stdio-common/xbug.c (AppendToBuffer): Likewise.
+	(ReadFile): Likewise.
+	* stdlib/qsort.c (SWAP): Likewise.
+	(_quicksort): Likewise.
+	* stdlib/setenv.c (__add_to_environ): Likewise.
+	* stdlib/strtod_l.c (____STRTOF_INTERNAL): Likewise.
+	* stdlib/strtol_l.c (__strtol_l): Likewise.
+	* stdlib/tst-strtod.c (main): Likewise.
+	* stdlib/tst-strtol.c (main): Likewise.
+	* stdlib/tst-strtoll.c (main): Likewise.
+	* string/bits/string2.h (__strcmp_cc): Likewise.
+	(__strcmp_cg): Likewise.
+	(__strcspn_c1): Likewise.
+	(__strcspn_c2): Likewise.
+	(__strcspn_c3): Likewise.
+	(__strspn_c1): Likewise.
+	(__strspn_c2): Likewise.
+	(__strspn_c3): Likewise.
+	(__strsep_1c): Likewise.
+	(__strsep_2c): Likewise.
+	(__strsep_3c): Likewise.
+	* string/memccpy.c (__memccpy): Likewise.
+	* string/stpcpy.c (__stpcpy): Likewise.
+	* string/strcmp.c (strcmp): Likewise.
+	* string/strrchr.c (strrchr): Likewise.
+	* sysdeps/generic/sigset-cvt-mask.h (sigset_get_old_mask):
+	Likewise.
+	* sysdeps/mach/hurd/getcwd.c
+	(_hurd_canonicalize_directory_name_internal): Likewise.
+	* sysdeps/mach/i386/sysdep.h (SNARF_ARGS): Likewise.
+	* sysdeps/powerpc/powerpc32/power6/wcschr.c (wcschr): Likewise.
+	* sysdeps/powerpc/powerpc32/power6/wcsrchr.c (wcsrchr): Likewise.
+	* sysdeps/x86/bits/byteswap-16.h [__GNUC__] (__bswap_16):
+	Likewise, in both definitions.
+	* sysdeps/x86/bits/byteswap.h (__bswap_32): Likewise, in multiple
+	definitions.
+	[__GNUC_PREREQ (2, 0) && !__GNUC_PREREQ (4, 3) && __WORDSIZE ==
+	64] (__bswap_64): Likewise.
+	* time/test_time.c (main): Likewise.
+	* time/tzfile.c (__tzfile_read): Likewise.
+	(__tzfile_compute): Likewise.
+	* time/tzset.c (__tzset_parse_tz): Likewise.
+	(tzset_internal): Likewise.
+	(compute_change): Likewise.
+	* wcsmbs/wcscat.c (__wcscat): Likewise.
+	* wcsmbs/wcschr.c (wcschr): Likewise.
+	* wcsmbs/wcschrnul.c (__wcschrnul): Likewise.
+	* wcsmbs/wcscspn.c (wcscspn): Likewise.
+	* wcsmbs/wcspbrk.c (wcspbrk): Likewise.
+	* wcsmbs/wcsrchr.c (wcsrchr): Likewise.
+	* wcsmbs/wcsspn.c (wcsspn): Likewise.
+	* wcsmbs/wcsstr.c (wcsstr): Likewise.
+	* wcsmbs/wmemchr.c (wmemchr): Likewise.
+	* wcsmbs/wmemcmp.c (WMEMCMP): Likewise.
+	* wcsmbs/wmemset.c (wmemset): Likewise.
+
 2013-06-06  Joseph Myers  <joseph@codesourcery.com>
 
 	* scripts/config.guess: Update to version 2013-05-16.

bits/byteswap.h

@@ -48,7 +48,7 @@ __bswap_32 (unsigned int __bsx)
 # else
 #  define __bswap_32(x) \
   (__extension__							      \
-   ({ register unsigned int __bsx = (x); __bswap_constant_32 (__bsx); }))
+   ({ unsigned int __bsx = (x); __bswap_constant_32 (__bsx); }))
 # endif
 #else
 static __inline unsigned int

crypt/crypt.c

@@ -88,8 +88,8 @@ _ufc_doit_r(itr, __data, res)
 {
   int i;
   long64 l, r, s, *k;
-  register long64 *sb01 = (long64*)__data->sb0;
-  register long64 *sb23 = (long64*)__data->sb2;
+  long64 *sb01 = (long64*)__data->sb0;
+  long64 *sb23 = (long64*)__data->sb2;
 
   l = (((long64)res[0]) << 32) | ((long64)res[1]);
   r = (((long64)res[2]) << 32) | ((long64)res[3]);

debug/stpcpy_chk.c

@@ -29,8 +29,8 @@ __stpcpy_chk (dest, src, destlen)
      const char *src;
      size_t destlen;
 {
-  register char *d = dest;
-  register const char *s = src;
+  char *d = dest;
+  const char *s = src;
 
   do
     {

debug/wcscat_chk.c

@@ -23,8 +23,8 @@
 wchar_t *
 __wcscat_chk (wchar_t *dest, const wchar_t *src, size_t destlen)
 {
-  register wchar_t *s1 = dest;
-  register const wchar_t *s2 = src;
+  wchar_t *s1 = dest;
+  const wchar_t *s2 = src;
   wchar_t c;
 
   /* Find the end of the string.  */

gmon/gmon.c

@@ -102,7 +102,7 @@ __monstartup (lowpc, highpc)
      u_long lowpc;
      u_long highpc;
 {
-  register int o;
+  int o;
   char *cp;
   struct gmonparam *p = &_gmonparam;
 

gmon/mcount.c

@@ -58,10 +58,10 @@ static char sccsid[] = "@(#)mcount.c	8.1 (Berkeley) 6/4/93";
  */
 _MCOUNT_DECL(frompc, selfpc)	/* _mcount; may be static, inline, etc */
 {
-	register ARCINDEX *frompcindex;
-	register struct tostruct *top, *prevtop;
-	register struct gmonparam *p;
-	register ARCINDEX toindex;
+	ARCINDEX *frompcindex;
+	struct tostruct *top, *prevtop;
+	struct gmonparam *p;
+	ARCINDEX toindex;
 	int i;
 
 	p = &_gmonparam;

hurd/hurdmalloc.c

@@ -171,10 +171,10 @@ malloc_init (void)
 static void
 more_memory(int size, free_list_t fl)
 {
-	register int amount;
-	register int n;
+	int amount;
+	int n;
 	vm_address_t where;
-	register header_t h;
+	header_t h;
 	kern_return_t r;
 
 	if (size <= vm_page_size) {
@@ -203,11 +203,11 @@ more_memory(int size, free_list_t fl)
 /* Declaration changed to standard one for GNU.  */
 void *
 malloc(size)
-	register size_t size;
+	size_t size;
 {
-	register int i, n;
-	register free_list_t fl;
-	register header_t h;
+	int i, n;
+	free_list_t fl;
+	header_t h;
 
 	if ((int) size < 0)		/* sanity check */
 		return 0;
@@ -272,9 +272,9 @@ void
 free(base)
 	void *base;
 {
-	register header_t h;
-	register free_list_t fl;
-	register int i;
+	header_t h;
+	free_list_t fl;
+	int i;
 
 	if (base == 0)
 		return;
@@ -322,9 +322,9 @@ realloc(old_base, new_size)
         void *old_base;
         size_t new_size;
 {
-	register header_t h;
-	register free_list_t fl;
-	register int i;
+	header_t h;
+	free_list_t fl;
+	int i;
 	unsigned int old_size;
 	char *new_base;
 
@@ -382,10 +382,10 @@ realloc(old_base, new_size)
 void
 print_malloc_free_list()
 {
-	register int i, size;
-	register free_list_t fl;
-	register int n;
-	register header_t h;
+	int i, size;
+	free_list_t fl;
+	int n;
+	header_t h;
 	int total_used = 0;
 	int total_free = 0;
 
@@ -416,7 +416,7 @@ malloc_fork_prepare(void)
  * malloc critical section.
  */
 {
-    register int i;
+    int i;
 
     for (i = 0; i < NBUCKETS; i++) {
 	spin_lock(&malloc_free_list[i].lock);
@@ -429,7 +429,7 @@ malloc_fork_parent(void)
  * Called in the parent process after a fork() to resume normal operation.
  */
 {
-    register int i;
+    int i;
 
     for (i = NBUCKETS-1; i >= 0; i--) {
 	spin_unlock(&malloc_free_list[i].lock);
@@ -442,7 +442,7 @@ malloc_fork_child(void)
  * Called in the child process after a fork() to resume normal operation.
  */
 {
-    register int i;
+    int i;
 
     for (i = NBUCKETS-1; i >= 0; i--) {
 	spin_unlock(&malloc_free_list[i].lock);

include/rpc/auth_des.h

@@ -7,12 +7,12 @@ libc_hidden_proto (getsecretkey)
 libc_hidden_proto (rtime)
 
 extern bool_t xdr_authdes_cred (XDR *xdrs, struct authdes_cred *cred);
-extern bool_t xdr_authdes_verf (register XDR *xdrs,
-				register struct authdes_verf *verf);
+extern bool_t xdr_authdes_verf (XDR *xdrs,
+				struct authdes_verf *verf);
 struct svc_req;
 struct rpc_msg;
-extern enum auth_stat _svcauth_des (register struct svc_req *rqst,
-				    register struct rpc_msg *msg);
+extern enum auth_stat _svcauth_des (struct svc_req *rqst,
+				    struct rpc_msg *msg);
 
 
 #define DECLARE_NSS_PROTOTYPES(service)					\

inet/inet_lnaof.c

@@ -44,7 +44,7 @@ in_addr_t
 inet_lnaof(in)
 	struct in_addr in;
 {
-	register u_int32_t i = ntohl(in.s_addr);
+	u_int32_t i = ntohl(in.s_addr);
 
 	if (IN_CLASSA(i))
 		return ((i)&IN_CLASSA_HOST);

inet/inet_net.c

@@ -43,10 +43,10 @@ static char sccsid[] = "@(#)inet_network.c	8.1 (Berkeley) 6/4/93";
  */
 u_int32_t
 inet_network(cp)
-	register const char *cp;
+	const char *cp;
 {
-	register u_int32_t val, base, n, i;
-	register char c;
+	u_int32_t val, base, n, i;
+	char c;
 	u_int32_t parts[4], *pp = parts;
 	int digit;
 

inet/inet_netof.c

@@ -43,7 +43,7 @@ in_addr_t
 inet_netof(in)
 	struct in_addr in;
 {
-	register u_int32_t i = ntohl(in.s_addr);
+	u_int32_t i = ntohl(in.s_addr);
 
 	if (IN_CLASSA(i))
 		return (((i)&IN_CLASSA_NET) >> IN_CLASSA_NSHIFT);

inet/rcmd.c

@@ -769,8 +769,8 @@ __validuser2_sa(hostf, ra, ralen, luser, ruser, rhost)
 	size_t ralen;
 	const char *luser, *ruser, *rhost;
 {
-    register const char *user;
-    register char *p;
+    const char *user;
+    char *p;
     int hcheck, ucheck;
     char *buf = NULL;
     size_t bufsize = 0;