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Diffstat (limited to 'm4/ax_gcc_builtin.m4')
| -rw-r--r-- | m4/ax_gcc_builtin.m4 | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/m4/ax_gcc_builtin.m4 b/m4/ax_gcc_builtin.m4 deleted file mode 100644 index b28a91b14a5..00000000000 --- a/m4/ax_gcc_builtin.m4 +++ /dev/null @@ -1,168 +0,0 @@ -# =========================================================================== -# http://www.gnu.org/software/autoconf-archive/ax_gcc_builtin.html -# =========================================================================== -# -# SYNOPSIS -# -# AX_GCC_BUILTIN(BUILTIN) -# -# DESCRIPTION -# -# This macro checks if the compiler supports one of GCC's built-in -# functions; many other compilers also provide those same built-ins. -# -# The BUILTIN parameter is the name of the built-in function. -# -# If BUILTIN is supported define HAVE_<BUILTIN>. Keep in mind that since -# builtins usually start with two underscores they will be copied over -# into the HAVE_<BUILTIN> definition (e.g. HAVE___BUILTIN_EXPECT for -# __builtin_expect()). -# -# The macro caches its result in the ax_cv_have_<BUILTIN> variable (e.g. -# ax_cv_have___builtin_expect). -# -# The macro currently supports the following built-in functions: -# -# __builtin_assume_aligned -# __builtin_bswap32 -# __builtin_bswap64 -# __builtin_choose_expr -# __builtin___clear_cache -# __builtin_clrsb -# __builtin_clrsbl -# __builtin_clrsbll -# __builtin_clz -# __builtin_clzl -# __builtin_clzll -# __builtin_complex -# __builtin_constant_p -# __builtin_ctz -# __builtin_ctzl -# __builtin_ctzll -# __builtin_expect -# __builtin_ffs -# __builtin_ffsl -# __builtin_ffsll -# __builtin_fpclassify -# __builtin_huge_val -# __builtin_huge_valf -# __builtin_huge_vall -# __builtin_inf -# __builtin_infd128 -# __builtin_infd32 -# __builtin_infd64 -# __builtin_inff -# __builtin_infl -# __builtin_isinf_sign -# __builtin_nan -# __builtin_nand128 -# __builtin_nand32 -# __builtin_nand64 -# __builtin_nanf -# __builtin_nanl -# __builtin_nans -# __builtin_nansf -# __builtin_nansl -# __builtin_object_size -# __builtin_parity -# __builtin_parityl -# __builtin_parityll -# __builtin_popcount -# __builtin_popcountl -# __builtin_popcountll -# __builtin_powi -# __builtin_powif -# __builtin_powil -# __builtin_prefetch -# __builtin_trap -# __builtin_types_compatible_p -# __builtin_unreachable -# -# Unsuppored built-ins will be tested with an empty parameter set and the -# result of the check might be wrong or meaningless so use with care. -# -# LICENSE -# -# Copyright (c) 2013 Gabriele Svelto <gabriele.svelto@gmail.com> -# -# Copying and distribution of this file, with or without modification, are -# permitted in any medium without royalty provided the copyright notice -# and this notice are preserved. This file is offered as-is, without any -# warranty. - -#serial 2 - -AC_DEFUN([AX_GCC_BUILTIN], [ - AS_VAR_PUSHDEF([ac_var], [ax_cv_have_$1]) - - AC_CACHE_CHECK([for $1], [ac_var], [ - AC_LINK_IFELSE([AC_LANG_PROGRAM([], [ - m4_case([$1], - [__builtin_assume_aligned], [$1("", 0)], - [__builtin_bswap32], [$1(0)], - [__builtin_bswap64], [$1(0)], - [__builtin_choose_expr], [$1(0, 0, 0)], - [__builtin___clear_cache], [$1("", "")], - [__builtin_clrsb], [$1(0)], - [__builtin_clrsbl], [$1(0)], - [__builtin_clrsbll], [$1(0)], - [__builtin_clz], [$1(0)], - [__builtin_clzl], [$1(0)], - [__builtin_clzll], [$1(0)], - [__builtin_complex], [$1(0.0, 0.0)], - [__builtin_constant_p], [$1(0)], - [__builtin_ctz], [$1(0)], - [__builtin_ctzl], [$1(0)], - [__builtin_ctzll], [$1(0)], - [__builtin_expect], [$1(0, 0)], - [__builtin_ffs], [$1(0)], - [__builtin_ffsl], [$1(0)], - [__builtin_ffsll], [$1(0)], - [__builtin_fpclassify], [$1(0, 1, 2, 3, 4, 0.0)], - [__builtin_huge_val], [$1()], - [__builtin_huge_valf], [$1()], - [__builtin_huge_vall], [$1()], - [__builtin_inf], [$1()], - [__builtin_infd128], [$1()], - [__builtin_infd32], [$1()], - [__builtin_infd64], [$1()], - [__builtin_inff], [$1()], - [__builtin_infl], [$1()], - [__builtin_isinf_sign], [$1(0.0)], - [__builtin_nan], [$1("")], - [__builtin_nand128], [$1("")], - [__builtin_nand32], [$1("")], - [__builtin_nand64], [$1("")], - [__builtin_nanf], [$1("")], - [__builtin_nanl], [$1("")], - [__builtin_nans], [$1("")], - [__builtin_nansf], [$1("")], - [__builtin_nansl], [$1("")], - [__builtin_object_size], [$1("", 0)], - [__builtin_parity], [$1(0)], - [__builtin_parityl], [$1(0)], - [__builtin_parityll], [$1(0)], - [__builtin_popcount], [$1(0)], - [__builtin_popcountl], [$1(0)], - [__builtin_popcountll], [$1(0)], - [__builtin_powi], [$1(0, 0)], - [__builtin_powif], [$1(0, 0)], - [__builtin_powil], [$1(0, 0)], - [__builtin_prefetch], [$1("")], - [__builtin_trap], [$1()], - [__builtin_types_compatible_p], [$1(int, int)], - [__builtin_unreachable], [$1()], - [m4_warn([syntax], [Unsupported built-in $1, the test may fail]) - $1()] - ) - ])], - [AS_VAR_SET([ac_var], [yes])], - [AS_VAR_SET([ac_var], [no])]) - ]) - - AS_IF([test yes = AS_VAR_GET([ac_var])], - [AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_$1), 1, - [Define to 1 if the system has the `$1' built-in function])], []) - - AS_VAR_POPDEF([ac_var]) -]) |