diff options
| author | H.J. Lu <hjl.tools@gmail.com> | 2020-04-29 14:25:36 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2020-04-29 14:25:36 -0700 |
| commit | 87c66b2e70e421983a826518ff5e03d17eaa8f4c (patch) | |
| tree | 404effb0becdaa86f5a132dddf48d70815f6d1de /config/math.m4 | |
| parent | 42e165c30c2f0602a73d301bd62a49a2290360c4 (diff) | |
| download | binutils-gdb-87c66b2e70e421983a826518ff5e03d17eaa8f4c.tar.gz | |
Sync config and libiberty with GCC
config/
2020-04-29 H.J. Lu <hongjiu.lu@intel.com>
Sync with GCC
2020-04-28 H.J. Lu <hongjiu.lu@intel.com>
PR bootstrap/94739
* cet.m4 (GCC_CET_HOST_FLAGS): Add -fcf-protection=none to
-Wl,-z,ibt,-z,shstk. Check whether -fcf-protection=none
-Wl,-z,ibt,-z,shstk works first.
2020-04-25 H.J. Lu <hongjiu.lu@intel.com>
PR bootstrap/94739
* cet.m4 (GCC_CET_HOST_FLAGS): New.
2020-04-22 Jakub Jelinek <jakub@redhat.com>
PR libfortran/94694
PR libfortran/94586
* math.m4 (GCC_CHECK_MATH_INLINE_BUILTIN_FALLBACK1,
GCC_CHECK_MATH_INLINE_BUILTIN_FALLBACK2): New.
libiberty/
2020-04-28 H.J. Lu <hongjiu.lu@intel.com>
PR bootstrap/94739
* configure: Regenerated.
Diffstat (limited to 'config/math.m4')
| -rw-r--r-- | config/math.m4 | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/config/math.m4 b/config/math.m4 index 155967e5071..e1e88d075ed 100644 --- 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]) |