hashtab.c (burtle_hash): New fn.

libiberty/
        * hashtab.c (burtle_hash): New fn.
        * configure.in: Add AC_C_BIGENDIAN_CROSS.
        * aclocal.m4: Include accross.m4.
        * configure, config.in: Regenerate.
include/
        * hashtab.h (burtle_hash): Prototype.
        (burtle_hash_object): New macro.

From-SVN: r66565

diff --git a/include/ChangeLog b/include/ChangeLog
index 51d2fc2158bd9a5472092a26d7ab205ee3693100..2e839fa97095ae7747b3950c4d6702a1db73b508 100644 (file)
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,8 @@
+2003-05-07  Jason Merrill  <jason@redhat.com>
+
+       * hashtab.h (burtle_hash): Prototype.
+       (burtle_hash_object): New macro.
+
 2003-03-17  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
 
        * ansidecl.h (ATTRIBUTE_NONNULL, ATTRIBUTE_NULL_PRINTF,

diff --git a/include/hashtab.h b/include/hashtab.h
index 7acb5eb2859218bda4646114ffdfe49bc9cb4666..b86bb29b80164086cc9f6a237edabb93f48927d3 100644 (file)
--- a/include/hashtab.h
+++ b/include/hashtab.h
@@ -183,6 +183,11 @@ extern htab_eq htab_eq_pointer;
 /* A hash function for null-terminated strings.  */
 extern hashval_t htab_hash_string PARAMS ((const PTR));
 
+/* An iterative hash function for arbitrary data.  */
+extern hashval_t burtle_hash PARAMS ((const PTR, size_t, hashval_t));
+/* Shorthand for hashing something with an intrinsic size.  */
+#define burtle_hash_object(OB,INIT) burtle_hash (&OB, sizeof (OB), INIT)
+
 #ifdef __cplusplus
 }
 #endif /* __cplusplus */

diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index 9dc9bfeace21f97f3c53750525dd5ef28ca5d654..90f51febccfcadd45781def10b2314d744135fad 100644 (file)
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,10 @@
+2003-05-07  Jason Merrill  <jason@redhat.com>
+
+       * hashtab.c (burtle_hash): New fn.
+       * configure.in: Add AC_C_BIGENDIAN_CROSS.
+       * aclocal.m4: Include accross.m4.
+       * configure, config.in: Regenerate.
+
 2003-05-04  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
 
        * configure.in (AC_CHECK_FUNCS): Don't make multiple calls.

diff --git a/libiberty/aclocal.m4 b/libiberty/aclocal.m4
index 6c5dc6ac64b43e9f82c72d3699ce7de171c42c61..a3349f3b08f6f1e6a2f7e42cde9e906530f953e0 100644 (file)
--- a/libiberty/aclocal.m4
+++ b/libiberty/aclocal.m4
@@ -1,3 +1,5 @@
+sinclude(../config/accross.m4)
+
 dnl See whether strncmp reads past the end of its string parameters.
 dnl On some versions of SunOS4 at least, strncmp reads a word at a time
 dnl but erroneously reads past the end of strings.  This can cause

diff --git a/libiberty/config.in b/libiberty/config.in
index 1cc6d6132e514f0755d7b38d55444c9fd13e6dc2..14ab3793c5ccf4ec00ab7d053dcdc7c60f6e1864 100644 (file)
--- a/libiberty/config.in
+++ b/libiberty/config.in
@@ -291,6 +291,16 @@
 /* Define if you have the <unistd.h> header file.  */
 #undef HAVE_UNISTD_H
 
+/* whether byteorder is bigendian */
+#undef WORDS_BIGENDIAN
+
+/* Define if the host machine stores words of multi-word integers in
+   big-endian order. */
+#undef HOST_WORDS_BIG_ENDIAN
+
+/* 1234 = LIL_ENDIAN, 4321 = BIGENDIAN */
+#undef BYTEORDER
+
 /* Define if errno must be declared even when <errno.h> is included. */
 #undef NEED_DECLARATION_ERRNO
 

diff --git a/libiberty/configure b/libiberty/configure
index 9034cd56338f5b247c38ce5d6ee4284660b51bdf..d0899a2dcbb16e3f909ffb7d30a3f24bdb763497 100755 (executable)
--- a/libiberty/configure
+++ b/libiberty/configure
@@ -1198,6 +1198,142 @@ EOF
  ;;
 esac
 
+echo $ac_n "checking whether byte ordering is bigendian""... $ac_c" 1>&6
+echo "configure:1203: checking whether byte ordering is bigendian" >&5
+if eval "test \"`echo '$''{'ac_cv_c_bigendian'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_cv_c_bigendian=unknown
+# See if sys/param.h defines the BYTE_ORDER macro.
+cat > conftest.$ac_ext <<EOF
+#line 1210 "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+#include <sys/param.h>
+int main() {
+
+#if !BYTE_ORDER || !BIG_ENDIAN || !LITTLE_ENDIAN
+ bogus endian macros
+#endif
+; return 0; }
+EOF
+if { (eval echo configure:1221: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  # It does; now see whether it defined to BIG_ENDIAN or not.
+cat > conftest.$ac_ext <<EOF
+#line 1225 "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+#include <sys/param.h>
+int main() {
+
+#if BYTE_ORDER != BIG_ENDIAN
+ not big endian
+#endif
+; return 0; }
+EOF
+if { (eval echo configure:1236: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  ac_cv_c_bigendian=yes
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  ac_cv_c_bigendian=no
+fi
+rm -f conftest*
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+fi
+rm -f conftest*
+if test $ac_cv_c_bigendian = unknown; then
+if test "$cross_compiling" = yes; then
+   echo $ac_n "cross-compiling... " 2>&6 
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1256 "configure"
+#include "confdefs.h"
+main () {
+  /* Are we little or big endian?  From Harbison&Steele.  */
+  union
+  {
+    long l;
+    char c[sizeof (long)];
+  } u;
+  u.l = 1;
+  exit (u.c[sizeof (long) - 1] == 1);
+}
+EOF
+if { (eval echo configure:1269: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+then
+  ac_cv_c_bigendian=no
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -fr conftest*
+  ac_cv_c_bigendian=yes
+fi
+rm -fr conftest*
+fi
+
+fi
+fi
+
+echo "$ac_t""$ac_cv_c_bigendian" 1>&6
+if test $ac_cv_c_bigendian = unknown; then
+echo $ac_n "checking to probe for byte ordering""... $ac_c" 1>&6
+echo "configure:1287: checking to probe for byte ordering" >&5
+
+cat >conftest.c <<EOF
+short ascii_mm[] = { 0x4249, 0x4765, 0x6E44, 0x6961, 0x6E53, 0x7953, 0 };
+short ascii_ii[] = { 0x694C, 0x5454, 0x656C, 0x6E45, 0x6944, 0x6E61, 0 };
+void _ascii() { char* s = (char*) ascii_mm; s = (char*) ascii_ii; }
+short ebcdic_ii[] = { 0x89D3, 0xE3E3, 0x8593, 0x95C5, 0x89C4, 0x9581, 0 };
+short ebcdic_mm[] = { 0xC2C9, 0xC785, 0x95C4, 0x8981, 0x95E2, 0xA8E2, 0 };
+void _ebcdic() { char* s = (char*) ebcdic_mm; s = (char*) ebcdic_ii; }
+int main() { _ascii (); _ebcdic (); return 0; }
+EOF
+ if test -f conftest.c ; then
+     if ${CC-cc} ${CFLAGS} conftest.c -o conftest.o && test -f conftest.o ; then
+        if test `grep -l BIGenDianSyS conftest.o` ; then
+           echo $ac_n ' big endian probe OK, ' 1>&6
+           ac_cv_c_bigendian=yes
+        fi
+        if test `grep -l LiTTleEnDian conftest.o` ; then
+           echo $ac_n ' little endian probe OK, ' 1>&6
+           if test $ac_cv_c_bigendian = yes ; then
+            ac_cv_c_bigendian=unknown;
+           else
+            ac_cv_c_bigendian=no
+           fi
+        fi
+        echo $ac_n 'guessing bigendian ...  ' >&6
+     fi
+  fi
+echo "$ac_t""$ac_cv_c_bigendian" 1>&6
+fi
+if test $ac_cv_c_bigendian = yes; then
+  cat >> confdefs.h <<\EOF
+#define WORDS_BIGENDIAN 1
+EOF
+
+  cat >> confdefs.h <<\EOF
+#define HOST_WORDS_BIG_ENDIAN 1
+EOF
+
+  BYTEORDER=4321
+else
+  BYTEORDER=1234
+fi
+cat >> confdefs.h <<EOF
+#define BYTEORDER $BYTEORDER
+EOF
+
+if test $ac_cv_c_bigendian = unknown; then
+  { echo "configure: error: unknown endianess - sorry" 1>&2; exit 1; }
+fi
+
 
 
 
@@ -1216,7 +1352,7 @@ esac
 # SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
 # ./install, which can be erroneously created by make from ./install.sh.
 echo $ac_n "checking for a BSD compatible install""... $ac_c" 1>&6
-echo "configure:1220: checking for a BSD compatible install" >&5
+echo "configure:1356: checking for a BSD compatible install" >&5
 if test -z "$INSTALL"; then
 if eval "test \"`echo '$''{'ac_cv_path_install'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1277,7 +1413,7 @@ host_makefile_frag=${frag}
 # able to link anything, it had better be able to at least compile
 # something.
 echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
-echo "configure:1281: checking how to run the C preprocessor" >&5
+echo "configure:1417: checking how to run the C preprocessor" >&5
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
   CPP=
@@ -1292,13 +1428,13 @@ else
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp.
   cat > conftest.$ac_ext <<EOF
-#line 1296 "configure"
+#line 1432 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1302: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1438: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1309,13 +1445,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -E -traditional-cpp"
   cat > conftest.$ac_ext <<EOF
-#line 1313 "configure"
+#line 1449 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1319: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1455: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1326,13 +1462,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -nologo -E"
   cat > conftest.$ac_ext <<EOF
-#line 1330 "configure"
+#line 1466 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1336: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1472: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1360,17 +1496,17 @@ for ac_hdr in sys/file.h sys/param.h limits.h stdlib.h string.h unistd.h strings
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:1364: checking for $ac_hdr" >&5
+echo "configure:1500: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1369 "configure"
+#line 1505 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1374: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1510: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -1397,12 +1533,12 @@ fi
 done
 
 echo $ac_n "checking for sys/wait.h that is POSIX.1 compatible""... $ac_c" 1>&6
-echo "configure:1401: checking for sys/wait.h that is POSIX.1 compatible" >&5
+echo "configure:1537: checking for sys/wait.h that is POSIX.1 compatible" >&5
 if eval "test \"`echo '$''{'ac_cv_header_sys_wait_h'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1406 "configure"
+#line 1542 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/wait.h>
@@ -1418,7 +1554,7 @@ wait (&s);
 s = WIFEXITED (s) ? WEXITSTATUS (s) : 1;
 ; return 0; }
 EOF
-if { (eval echo configure:1422: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1558: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_header_sys_wait_h=yes
 else
@@ -1439,12 +1575,12 @@ EOF
 fi
 
 echo $ac_n "checking whether time.h and sys/time.h may both be included""... $ac_c" 1>&6
-echo "configure:1443: checking whether time.h and sys/time.h may both be included" >&5
+echo "configure:1579: checking whether time.h and sys/time.h may both be included" >&5
 if eval "test \"`echo '$''{'ac_cv_header_time'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1448 "configure"
+#line 1584 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/time.h>
@@ -1453,7 +1589,7 @@ int main() {
 struct tm *tp;
 ; return 0; }
 EOF
-if { (eval echo configure:1457: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1593: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_header_time=yes
 else
@@ -1475,19 +1611,19 @@ fi
 
 
 echo $ac_n "checking whether errno must be declared""... $ac_c" 1>&6
-echo "configure:1479: checking whether errno must be declared" >&5
+echo "configure:1615: checking whether errno must be declared" >&5
 if eval "test \"`echo '$''{'libiberty_cv_declare_errno'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1484 "configure"
+#line 1620 "configure"
 #include "confdefs.h"
 #include <errno.h>
 int main() {
 int x = errno;
 ; return 0; }
 EOF
-if { (eval echo configure:1491: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1627: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   libiberty_cv_declare_errno=no
 else
@@ -1509,12 +1645,12 @@ fi
 
 
 echo $ac_n "checking for ANSI C header files""... $ac_c" 1>&6
-echo "configure:1513: checking for ANSI C header files" >&5
+echo "configure:1649: checking for ANSI C header files" >&5
 if eval "test \"`echo '$''{'ac_cv_header_stdc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1518 "configure"
+#line 1654 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 #include <stdarg.h>
@@ -1522,7 +1658,7 @@ else
 #include <float.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1526: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1662: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -1539,7 +1675,7 @@ rm -f conftest*
 if test $ac_cv_header_stdc = yes; then
   # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
 cat > conftest.$ac_ext <<EOF
-#line 1543 "configure"
+#line 1679 "configure"
 #include "confdefs.h"
 #include <string.h>
 EOF
@@ -1557,7 +1693,7 @@ fi
 if test $ac_cv_header_stdc = yes; then
   # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
 cat > conftest.$ac_ext <<EOF
-#line 1561 "configure"
+#line 1697 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -1578,7 +1714,7 @@ if test "$cross_compiling" = yes; then
   :
 else
   cat > conftest.$ac_ext <<EOF
-#line 1582 "configure"
+#line 1718 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 #define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
@@ -1589,7 +1725,7 @@ if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2);
 exit (0); }
 
 EOF
-if { (eval echo configure:1593: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1729: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   :
 else
@@ -1613,12 +1749,12 @@ EOF
 fi
 
 echo $ac_n "checking for uintptr_t""... $ac_c" 1>&6
-echo "configure:1617: checking for uintptr_t" >&5
+echo "configure:1753: checking for uintptr_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_uintptr_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1622 "configure"
+#line 1758 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -1654,12 +1790,12 @@ EOF
 
 
 echo $ac_n "checking for pid_t""... $ac_c" 1>&6
-echo "configure:1658: checking for pid_t" >&5
+echo "configure:1794: checking for pid_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_pid_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1663 "configure"
+#line 1799 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -1759,12 +1895,12 @@ if test "x" = "y"; then
   realpath canonicalize_file_name
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:1763: checking for $ac_func" >&5
+echo "configure:1899: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1768 "configure"
+#line 1904 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -1787,7 +1923,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:1791: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1927: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -2021,7 +2157,7 @@ if test -z "${setobjs}"; then
   # We haven't set the list of objects yet.  Use the standard autoconf
   # tests.  This will only work if the compiler works.
   echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:2025: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
+echo "configure:2161: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
 
 ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -2032,12 +2168,12 @@ cross_compiling=$ac_cv_prog_cc_cross
 
 cat > conftest.$ac_ext << EOF
 
-#line 2036 "configure"
+#line 2172 "configure"
 #include "confdefs.h"
 
 main(){return(0);}
 EOF
-if { (eval echo configure:2041: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2177: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   ac_cv_prog_cc_works=yes
   # If we can't run a trivial program, we are probably using a cross compiler.
   if (./conftest; exit) 2>/dev/null; then
@@ -2063,19 +2199,19 @@ if test $ac_cv_prog_cc_works = no; then
   { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }
 fi
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:2067: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:2203: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
 echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6
 cross_compiling=$ac_cv_prog_cc_cross
 
   for ac_func in $funcs
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:2074: checking for $ac_func" >&5
+echo "configure:2210: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2079 "configure"
+#line 2215 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2098,7 +2234,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2102: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2238: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -2125,12 +2261,12 @@ done
 
 
   echo $ac_n "checking whether alloca needs Cray hooks""... $ac_c" 1>&6
-echo "configure:2129: checking whether alloca needs Cray hooks" >&5
+echo "configure:2265: checking whether alloca needs Cray hooks" >&5
 if eval "test \"`echo '$''{'ac_cv_os_cray'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2134 "configure"
+#line 2270 "configure"
 #include "confdefs.h"
 #if defined(CRAY) && ! defined(CRAY2)
 webecray
@@ -2155,12 +2291,12 @@ echo "$ac_t""$ac_cv_os_cray" 1>&6
 if test $ac_cv_os_cray = yes; then
   for ac_func in _getb67 GETB67 getb67; do
     echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:2159: checking for $ac_func" >&5
+echo "configure:2295: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2164 "configure"
+#line 2300 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2183,7 +2319,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2187: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2323: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -2209,7 +2345,7 @@ fi
 fi
 
 echo $ac_n "checking stack direction for C alloca""... $ac_c" 1>&6
-echo "configure:2213: checking stack direction for C alloca" >&5
+echo "configure:2349: checking stack direction for C alloca" >&5
 if eval "test \"`echo '$''{'ac_cv_c_stack_direction'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2217,7 +2353,7 @@ else
   ac_cv_c_stack_direction=0
 else
   cat > conftest.$ac_ext <<EOF
-#line 2221 "configure"
+#line 2357 "configure"
 #include "confdefs.h"
 find_stack_direction ()
 {
@@ -2236,7 +2372,7 @@ main ()
   exit (find_stack_direction() < 0);
 }
 EOF
-if { (eval echo configure:2240: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2376: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_c_stack_direction=1
 else
@@ -2258,17 +2394,17 @@ EOF
 
   ac_safe=`echo "vfork.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for vfork.h""... $ac_c" 1>&6
-echo "configure:2262: checking for vfork.h" >&5
+echo "configure:2398: checking for vfork.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2267 "configure"
+#line 2403 "configure"
 #include "confdefs.h"
 #include <vfork.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2272: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2408: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -2293,18 +2429,18 @@ else
 fi
 
 echo $ac_n "checking for working vfork""... $ac_c" 1>&6
-echo "configure:2297: checking for working vfork" >&5
+echo "configure:2433: checking for working vfork" >&5
 if eval "test \"`echo '$''{'ac_cv_func_vfork_works'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   if test "$cross_compiling" = yes; then
   echo $ac_n "checking for vfork""... $ac_c" 1>&6
-echo "configure:2303: checking for vfork" >&5
+echo "configure:2439: checking for vfork" >&5
 if eval "test \"`echo '$''{'ac_cv_func_vfork'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2308 "configure"
+#line 2444 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char vfork(); below.  */
@@ -2327,7 +2463,7 @@ vfork();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2331: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2467: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_vfork=yes"
 else
@@ -2349,7 +2485,7 @@ fi
 ac_cv_func_vfork_works=$ac_cv_func_vfork
 else
   cat > conftest.$ac_ext <<EOF
-#line 2353 "configure"
+#line 2489 "configure"
 #include "confdefs.h"
 /* Thanks to Paul Eggert for this test.  */
 #include <stdio.h>
@@ -2444,7 +2580,7 @@ main() {
   }
 }
 EOF
-if { (eval echo configure:2448: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2584: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_func_vfork_works=yes
 else
@@ -2476,12 +2612,12 @@ fi
     for ac_func in _doprnt
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:2480: checking for $ac_func" >&5
+echo "configure:2616: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2485 "configure"
+#line 2621 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2504,7 +2640,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2508: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2644: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -2534,12 +2670,12 @@ done
     for ac_func in _doprnt
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:2538: checking for $ac_func" >&5
+echo "configure:2674: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2543 "configure"
+#line 2679 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2562,7 +2698,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2566: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2702: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -2590,19 +2726,19 @@ done
 
   for v in $vars; do
     echo $ac_n "checking for $v""... $ac_c" 1>&6
-echo "configure:2594: checking for $v" >&5
+echo "configure:2730: checking for $v" >&5
     if eval "test \"`echo '$''{'libiberty_cv_var_$v'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2599 "configure"
+#line 2735 "configure"
 #include "confdefs.h"
 int *p;
 int main() {
 extern int $v []; p = $v;
 ; return 0; }
 EOF
-if { (eval echo configure:2606: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2742: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "libiberty_cv_var_$v=yes"
 else
@@ -2628,12 +2764,12 @@ EOF
   for ac_func in $checkfuncs
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:2632: checking for $ac_func" >&5
+echo "configure:2768: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2637 "configure"
+#line 2773 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2656,7 +2792,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2660: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2796: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -2681,12 +2817,12 @@ fi
 done
 
   echo $ac_n "checking whether canonicalize_file_name must be declared""... $ac_c" 1>&6
-echo "configure:2685: checking whether canonicalize_file_name must be declared" >&5
+echo "configure:2821: checking whether canonicalize_file_name must be declared" >&5
 if eval "test \"`echo '$''{'libiberty_cv_decl_needed_canonicalize_file_name'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2690 "configure"
+#line 2826 "configure"
 #include "confdefs.h"
 
 #include "confdefs.h"
@@ -2708,7 +2844,7 @@ int main() {
 char *(*pfn) = (char *(*)) canonicalize_file_name
 ; return 0; }
 EOF
-if { (eval echo configure:2712: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2848: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   libiberty_cv_decl_needed_canonicalize_file_name=no
 else
@@ -2744,17 +2880,17 @@ for ac_hdr in unistd.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:2748: checking for $ac_hdr" >&5
+echo "configure:2884: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2753 "configure"
+#line 2889 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2758: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2894: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -2783,12 +2919,12 @@ done
 for ac_func in getpagesize
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:2787: checking for $ac_func" >&5
+echo "configure:2923: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2792 "configure"
+#line 2928 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2811,7 +2947,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2815: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2951: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -2836,7 +2972,7 @@ fi
 done
 
 echo $ac_n "checking for working mmap""... $ac_c" 1>&6
-echo "configure:2840: checking for working mmap" >&5
+echo "configure:2976: checking for working mmap" >&5
 if eval "test \"`echo '$''{'ac_cv_func_mmap_fixed_mapped'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2844,7 +2980,7 @@ else
   ac_cv_func_mmap_fixed_mapped=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 2848 "configure"
+#line 2984 "configure"
 #include "confdefs.h"
 
 /* Thanks to Mike Haertel and Jim Avera for this test.
@@ -2984,7 +3120,7 @@ main()
 }
 
 EOF
-if { (eval echo configure:2988: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:3124: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_func_mmap_fixed_mapped=yes
 else
@@ -3008,7 +3144,7 @@ fi
 
 
 echo $ac_n "checking for working strncmp""... $ac_c" 1>&6
-echo "configure:3012: checking for working strncmp" >&5
+echo "configure:3148: checking for working strncmp" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strncmp_works'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3016,7 +3152,7 @@ else
   ac_cv_func_strncmp_works=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 3020 "configure"
+#line 3156 "configure"
 #include "confdefs.h"
 
 /* Test by Jim Wilson and Kaveh Ghazi.
@@ -3080,7 +3216,7 @@ main ()
 }
 
 EOF
-if { (eval echo configure:3084: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:3220: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_func_strncmp_works=yes
 else

diff --git a/libiberty/configure.in b/libiberty/configure.in
index d5b3c7bbd376ccb3698294f91014d03f16d31e8a..4a704e8cec256c8a630c24e93ec40bcf18e3c419 100644 (file)
--- a/libiberty/configure.in
+++ b/libiberty/configure.in
@@ -114,6 +114,7 @@ AC_SUBST(OUTPUT_OPTION)
 AC_ISC_POSIX
 AC_C_CONST
 AC_C_INLINE
+AC_C_BIGENDIAN_CROSS
 
 dnl When we start using libtool:
 dnl Default to a non shared library.  This may be overridden by the

diff --git a/libiberty/hashtab.c b/libiberty/hashtab.c
index 32067afb5b8f94ef3bf312e979dfc90ba90eb9d8..5b58d71ef13545c364f8c7c2169c9b555441d3c7 100644 (file)
--- a/libiberty/hashtab.c
+++ b/libiberty/hashtab.c
@@ -709,3 +709,141 @@ htab_hash_string (p)
 
   return r;
 }
+
+/* DERIVED FROM:
+--------------------------------------------------------------------
+lookup2.c, by Bob Jenkins, December 1996, Public Domain.
+hash(), hash2(), hash3, and mix() are externally useful functions.
+Routines to test the hash are included if SELF_TEST is defined.
+You can use this free for any purpose.  It has no warranty.
+--------------------------------------------------------------------
+*/
+
+/*
+--------------------------------------------------------------------
+mix -- mix 3 32-bit values reversibly.
+For every delta with one or two bit set, and the deltas of all three
+  high bits or all three low bits, whether the original value of a,b,c
+  is almost all zero or is uniformly distributed,
+* If mix() is run forward or backward, at least 32 bits in a,b,c
+  have at least 1/4 probability of changing.
+* If mix() is run forward, every bit of c will change between 1/3 and
+  2/3 of the time.  (Well, 22/100 and 78/100 for some 2-bit deltas.)
+mix() was built out of 36 single-cycle latency instructions in a 
+  structure that could supported 2x parallelism, like so:
+      a -= b; 
+      a -= c; x = (c>>13);
+      b -= c; a ^= x;
+      b -= a; x = (a<<8);
+      c -= a; b ^= x;
+      c -= b; x = (b>>13);
+      ...
+  Unfortunately, superscalar Pentiums and Sparcs can't take advantage 
+  of that parallelism.  They've also turned some of those single-cycle
+  latency instructions into multi-cycle latency instructions.  Still,
+  this is the fastest good hash I could find.  There were about 2^^68
+  to choose from.  I only looked at a billion or so.
+--------------------------------------------------------------------
+*/
+/* same, but slower, works on systems that might have 8 byte hashval_t's */
+#define mix(a,b,c) \
+{ \
+  a -= b; a -= c; a ^= (c>>13); \
+  b -= c; b -= a; b ^= (a<< 8); \
+  c -= a; c -= b; c ^= ((b&0xffffffff)>>13); \
+  a -= b; a -= c; a ^= ((c&0xffffffff)>>12); \
+  b -= c; b -= a; b = (b ^ (a<<16)) & 0xffffffff; \
+  c -= a; c -= b; c = (c ^ (b>> 5)) & 0xffffffff; \
+  a -= b; a -= c; a = (a ^ (c>> 3)) & 0xffffffff; \
+  b -= c; b -= a; b = (b ^ (a<<10)) & 0xffffffff; \
+  c -= a; c -= b; c = (c ^ (b>>15)) & 0xffffffff; \
+}
+
+/*
+--------------------------------------------------------------------
+hash() -- hash a variable-length key into a 32-bit value
+  k     : the key (the unaligned variable-length array of bytes)
+  len   : the length of the key, counting by bytes
+  level : can be any 4-byte value
+Returns a 32-bit value.  Every bit of the key affects every bit of
+the return value.  Every 1-bit and 2-bit delta achieves avalanche.
+About 36+6len instructions.
+
+The best hash table sizes are powers of 2.  There is no need to do
+mod a prime (mod is sooo slow!).  If you need less than 32 bits,
+use a bitmask.  For example, if you need only 10 bits, do
+  h = (h & hashmask(10));
+In which case, the hash table should have hashsize(10) elements.
+
+If you are hashing n strings (ub1 **)k, do it like this:
+  for (i=0, h=0; i<n; ++i) h = hash( k[i], len[i], h);
+
+By Bob Jenkins, 1996.  bob_jenkins@burtleburtle.net.  You may use this
+code any way you wish, private, educational, or commercial.  It's free.
+
+See http://burtleburtle.net/bob/hash/evahash.html
+Use for hash table lookup, or anything where one collision in 2^32 is
+acceptable.  Do NOT use for cryptographic purposes.
+--------------------------------------------------------------------
+*/
+
+hashval_t burtle_hash (k_in, length, initval)
+     const PTR k_in;               /* the key */
+     register size_t  length;      /* the length of the key */
+     register hashval_t  initval;  /* the previous hash, or an arbitrary value */
+{
+  register const unsigned char *k = (const unsigned char *)k_in;
+  register hashval_t a,b,c,len;
+
+  /* Set up the internal state */
+  len = length;
+  a = b = 0x9e3779b9;  /* the golden ratio; an arbitrary value */
+  c = initval;           /* the previous hash value */
+
+  /*---------------------------------------- handle most of the key */
+#ifndef WORDS_BIGENDIAN
+  /* On a little-endian machine, if the data is 4-byte aligned we can hash
+     by word for better speed.  This gives nondeterministic results on
+     big-endian machines.  */
+  if (sizeof (hashval_t) == 4 && (((size_t)k)&3) == 0)
+    while (len >= 12)    /* aligned */
+      {
+       a += *(hashval_t *)(k+0);
+       b += *(hashval_t *)(k+4);
+       c += *(hashval_t *)(k+8);
+       mix(a,b,c);
+       k += 12; len -= 12;
+      }
+  else /* unaligned */
+#endif
+    while (len >= 12)
+      {
+       a += (k[0] +((hashval_t)k[1]<<8) +((hashval_t)k[2]<<16) +((hashval_t)k[3]<<24));
+       b += (k[4] +((hashval_t)k[5]<<8) +((hashval_t)k[6]<<16) +((hashval_t)k[7]<<24));
+       c += (k[8] +((hashval_t)k[9]<<8) +((hashval_t)k[10]<<16)+((hashval_t)k[11]<<24));
+       mix(a,b,c);
+       k += 12; len -= 12;
+      }
+
+  /*------------------------------------- handle the last 11 bytes */
+  c += length;
+  switch(len)              /* all the case statements fall through */
+    {
+    case 11: c+=((hashval_t)k[10]<<24);
+    case 10: c+=((hashval_t)k[9]<<16);
+    case 9 : c+=((hashval_t)k[8]<<8);
+      /* the first byte of c is reserved for the length */
+    case 8 : b+=((hashval_t)k[7]<<24);
+    case 7 : b+=((hashval_t)k[6]<<16);
+    case 6 : b+=((hashval_t)k[5]<<8);
+    case 5 : b+=k[4];
+    case 4 : a+=((hashval_t)k[3]<<24);
+    case 3 : a+=((hashval_t)k[2]<<16);
+    case 2 : a+=((hashval_t)k[1]<<8);
+    case 1 : a+=k[0];
+      /* case 0: nothing left to add */
+    }
+  mix(a,b,c);
+  /*-------------------------------------------- report the result */
+  return c;
+}