Change regcache list to be an hash map

[deliverable/binutils-gdb.git] / config / math.m4

diff --git a/config/math.m4 b/config/math.m4
index 155967e5071faa26ddcc94ad1f82599cd3c7d19b..e1e88d075edeec4ac7eb731878750596b14dc37c 100644 (file)
--- a/config/math.m4
+++ b/config/math.m4
@@ -48,3 +48,67 @@ main ()
                        [Define to 1 if you have the `$1' function.])
   fi
 ])
+
+dnl GCC_CHECK_MATH_INLINE_BUILTIN_FALLBACK1([name], [type])
+dnl
+dnl Check if math function NAME fallback for function with single
+dnl TYPE argument and TYPE result can be implemented using
+dnl __builtin_NAME expanded inline without needing unavailable math
+dnl library function.
+AC_DEFUN([GCC_CHECK_MATH_INLINE_BUILTIN_FALLBACK1],
+[
+  AC_REQUIRE([GCC_CHECK_LIBM])
+if test $gcc_cv_math_func_$1 = no; then
+  AC_CACHE_CHECK([for inline __builtin_$1], [gcc_cv_math_inline_builtin_$1],
+                [AC_LINK_IFELSE([AC_LANG_SOURCE([
+$2
+$1_fallback ($2 x)
+{
+  return __builtin_$1 (x);
+}
+
+int
+main ()
+{
+  return 0;
+}
+])],
+[gcc_cv_math_inline_builtin_$1=yes],
+[gcc_cv_math_inline_builtin_$1=no])])
+  if test $gcc_cv_math_inline_builtin_$1 = yes; then
+    AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_INLINE_BUILTIN_$1),[1],
+             [Define to 1 if `__builtin_$1' is expanded inline.])
+  fi
+fi])
+
+dnl GCC_CHECK_MATH_INLINE_BUILTIN_FALLBACK2([name], [type])
+dnl
+dnl Check if math function NAME fallback for function with two
+dnl TYPE arguments and TYPE result can be implemented using
+dnl __builtin_NAME expanded inline without needing unavailable math
+dnl library function.
+AC_DEFUN([GCC_CHECK_MATH_INLINE_BUILTIN_FALLBACK2],
+[
+  AC_REQUIRE([GCC_CHECK_LIBM])
+if test $gcc_cv_math_func_$1 = no; then
+  AC_CACHE_CHECK([for inline __builtin_$1], [gcc_cv_math_inline_builtin_$1],
+                [AC_LINK_IFELSE([AC_LANG_SOURCE([
+$2
+$1_fallback ($2 x, $2 y)
+{
+  return __builtin_$1 (x, y);
+}
+
+int
+main ()
+{
+  return 0;
+}
+])],
+[gcc_cv_math_inline_builtin_$1=yes],
+[gcc_cv_math_inline_builtin_$1=no])])
+  if test $gcc_cv_math_inline_builtin_$1 = yes; then
+    AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_INLINE_BUILTIN_$1),[1],
+             [Define to 1 if `__builtin_$1' is expanded inline.])
+  fi
+fi])