@@ -1,3 +1,8 @@

+Wed Oct 29 20:52:07 EET 2008 (edwin)

+------------------------------------

+ * configure, configure.in: add testcase for gcc bug 37573, affecting

+ gcc 4.1.2 at -O3 too (bb #1258)

+

 Tue Oct 28 22:08:19 EET 2008 (edwin)

 ------------------------------------

  * unit_tests/valgrind.supp: fix more valgrind warnings

@@ -12556,6 +12556,130 @@ fi

+{ echo "$as_me:$LINENO: checking for gcc bug PR37573" >&5

+echo $ECHO_N "checking for gcc bug PR37573... $ECHO_C" >&6; }

+if test "$cross_compiling" = yes; then

+  { echo "$as_me:$LINENO: result: cross-compiling, assumed ok" >&5

+echo "${ECHO_T}cross-compiling, assumed ok" >&6; }

+else

+  cat >conftest.$ac_ext <<_ACEOF

+/* confdefs.h.  */

+_ACEOF

+cat confdefs.h >>conftest.$ac_ext

+cat >>conftest.$ac_ext <<_ACEOF

+/* end confdefs.h.  */

+

+struct S

+{

+  unsigned int *a;

+  unsigned int b;

+  unsigned int c[624];

+};

+static unsigned char

+foo (struct S *s)

+{

+  unsigned int r;

+  if (!--s->b)

+    {

+      unsigned int *c = s->c;

+      unsigned int i;

+      s->a = c;

+      for (i = 0; i < 227; i++)

+	c[i] =

+	  ((((c[i] ^ c[i + 1]) & 0x7ffffffe) ^ c[i]) >> 1) ^

+	  ((0 - (c[i + 1] & 1)) & 0x9908b0df) ^ c[i + 397];

+      for (; i < 623; i++)

+	c[i] =

+	  ((((c[i] ^ c[i + 1]) & 0x7ffffffe) ^ c[i]) >> 1) ^

+	  ((0 - (c[i + 1] & 1)) & 0x9908b0df) ^ c[i - 227];

+      c[623] =

+	((((c[623] ^ c[0]) & 0x7ffffffe) ^ c[623]) >> 1) ^ ((0 - (c[0] & 1)) &

+							    0x9908b0df) ^ c[i

+									    -

+									    227];

+    }

+  r = *(s->a++);

+  r ^= (r >> 11);

+  r ^= ((r & 0xff3a58ad) << 7);

+  r ^= ((r & 0xffffdf8c) << 15);

+  r ^= (r >> 18);

+  return (unsigned char) (r >> 1);

+}

+

+void

+bar (unsigned char *p, unsigned int q, unsigned int r)

+{

+  struct S s;

+  unsigned int i;

+  unsigned int *c = s.c;

+  *c = r;

+  for (i = 1; i < 624; i++)

+    c[i] = i + 0x6c078965 * ((c[i - 1] >> 30) ^ c[i - 1]);

+  s.b = 1;

+  while (q--)

+    *p++ ^= foo (&s);

+};

+

+static unsigned char p[23] = {

+  0xc0, 0x49, 0x17, 0x32, 0x62, 0x1e, 0x2e, 0xd5, 0x4c, 0x19, 0x28, 0x49,

+    0x91, 0xe4, 0x72, 0x83, 0x91, 0x3d, 0x93, 0x83, 0xb3, 0x61, 0x38

+};

+

+static unsigned char q[23] = {

+  0x3e, 0x41, 0x55, 0x54, 0x4f, 0x49, 0x54, 0x20, 0x55, 0x4e, 0x49, 0x43,

+    0x4f, 0x44, 0x45, 0x20, 0x53, 0x43, 0x52, 0x49, 0x50, 0x54, 0x3c

+};

+

+int

+main (void)

+{

+  unsigned int s;

+  s = 23;

+  bar (p, s, s + 0xa25e);

+  if (__builtin_memcmp (p, q, s) != 0)

+    __builtin_abort ();

+  return 0;

+}

+

+

+_ACEOF

+rm -f conftest$ac_exeext

+if { (ac_try="$ac_link"

+case "(($ac_try" in

+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;

+  *) ac_try_echo=$ac_try;;

+esac

+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5

+  (eval "$ac_link") 2>&5

+  ac_status=$?

+  echo "$as_me:$LINENO: \$? = $ac_status" >&5

+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'

+  { (case "(($ac_try" in

+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;

+  *) ac_try_echo=$ac_try;;

+esac

+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5

+  (eval "$ac_try") 2>&5

+  ac_status=$?

+  echo "$as_me:$LINENO: \$? = $ac_status" >&5

+  (exit $ac_status); }; }; then

+  { echo "$as_me:$LINENO: result: ok, bug not present" >&5

+echo "${ECHO_T}ok, bug not present" >&6; }

+else

+  echo "$as_me: program exited with status $ac_status" >&5

+echo "$as_me: failed program was:" >&5

+sed 's/^/| /' conftest.$ac_ext >&5

+

+( exit $ac_status )

+{ { echo "$as_me:$LINENO: error: your compiler has gcc PR37573 bug, use a different compiler, see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37573" >&5

+echo "$as_me: error: your compiler has gcc PR37573 bug, use a different compiler, see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37573" >&2;}

+   { (exit 1); exit 1; }; }

+fi

+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext

+fi

+

+

+

 { echo "$as_me:$LINENO: checking for ld --version-script" >&5

 echo $ECHO_N "checking for ld --version-script... $ECHO_C" >&6; }

 if test "${ac_cv_ld_version_script+set}" = set; then

@@ -243,6 +243,87 @@ int main (void)

 ], [AC_MSG_RESULT([ok, bug not present])],

 [AC_MSG_ERROR([your compiler has gcc PR28045 bug, use a different compiler, see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28045])], [AC_MSG_RESULT([cross-compiling, assumed ok])])

+dnl Check if compiler produces invalid code on gcc PR37573 (affects autoit.c)

+dnl this is a bug in gcc 4.4.0, but for some reason it affects gcc 4.1.2 too

+dnl gcc 4.1.3 is OK. This bug occurs only at -O3.

+AC_MSG_CHECKING([for gcc bug PR37573])

+AC_TRY_RUN(

+	   [

+struct S

+{

+  unsigned int *a;

+  unsigned int b;

+  unsigned int c[624];

+};

+static unsigned char

+foo (struct S *s)

+{

+  unsigned int r;

+  if (!--s->b)

+    {

+      unsigned int *c = s->c;

+      unsigned int i;

+      s->a = c;

+      for (i = 0; i < 227; i++)

+	c[i] =

+	  ((((c[i] ^ c[i + 1]) & 0x7ffffffe) ^ c[i]) >> 1) ^

+	  ((0 - (c[i + 1] & 1)) & 0x9908b0df) ^ c[i + 397];

+      for (; i < 623; i++)

+	c[i] =

+	  ((((c[i] ^ c[i + 1]) & 0x7ffffffe) ^ c[i]) >> 1) ^

+	  ((0 - (c[i + 1] & 1)) & 0x9908b0df) ^ c[i - 227];

+      c[623] =

+	((((c[623] ^ c[0]) & 0x7ffffffe) ^ c[623]) >> 1) ^ ((0 - (c[0] & 1)) &

+							    0x9908b0df) ^ c[i

+									    -

+									    227];

+    }

+  r = *(s->a++);

+  r ^= (r >> 11);

+  r ^= ((r & 0xff3a58ad) << 7);

+  r ^= ((r & 0xffffdf8c) << 15);

+  r ^= (r >> 18);

+  return (unsigned char) (r >> 1);

+}

+

+void

+bar (unsigned char *p, unsigned int q, unsigned int r)

+{

+  struct S s;

+  unsigned int i;

+  unsigned int *c = s.c;

+  *c = r;

+  for (i = 1; i < 624; i++)

+    c[i] = i + 0x6c078965 * ((c[i - 1] >> 30) ^ c[i - 1]);

+  s.b = 1;

+  while (q--)

+    *p++ ^= foo (&s);

+};

+

+static unsigned char p[23] = {

+  0xc0, 0x49, 0x17, 0x32, 0x62, 0x1e, 0x2e, 0xd5, 0x4c, 0x19, 0x28, 0x49,

+    0x91, 0xe4, 0x72, 0x83, 0x91, 0x3d, 0x93, 0x83, 0xb3, 0x61, 0x38

+};

+

+static unsigned char q[23] = {

+  0x3e, 0x41, 0x55, 0x54, 0x4f, 0x49, 0x54, 0x20, 0x55, 0x4e, 0x49, 0x43,

+    0x4f, 0x44, 0x45, 0x20, 0x53, 0x43, 0x52, 0x49, 0x50, 0x54, 0x3c

+};

+

+int

+main (void)

+{

+  unsigned int s;

+  s = 23;

+  bar (p, s, s + 0xa25e);

+  if (__builtin_memcmp (p, q, s) != 0)

+    __builtin_abort ();

+  return 0;

+}

+

+], [AC_MSG_RESULT([ok, bug not present])],

+[AC_MSG_ERROR([your compiler has gcc PR37573 bug, use a different compiler, see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37573])], [AC_MSG_RESULT([cross-compiling, assumed ok])])

+

 dnl Linker feature checks

 dnl check for version script support in the linker (GNU ld, or Solaris ld style)

 AC_CACHE_CHECK([for ld --version-script], [ac_cv_ld_version_script], [dnl