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test c++ shuffle

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This commit is contained in:
John Cupitt 2017-10-02 09:36:07 +01:00
parent 7b9c969e39
commit 5f16c676db
1 changed files with 3 additions and 1 deletions
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4
configure.ac
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@ -344,7 +344,8 @@ AC_TYPE_SIZE_T
# we need to be able to shuffle vectors in C++
if test x$ax_cv_have_var_attribute_vector_size = x"yes"; then
AC_MSG_CHECKING([for vector shuffle])
AC_MSG_CHECKING([for C++ vector shuffle])
AC_LANG_PUSH([C++])
AC_TRY_COMPILE([
typedef float v4f __attribute__((vector_size(4 * sizeof(float))));
],[
@ -356,6 +357,7 @@ if test x$ax_cv_have_var_attribute_vector_size = x"yes"; then
AC_MSG_RESULT([no])
have_vector_shuffle=no
])
AC_LANG_POP([C++])
if test x$have_vector_shuffle = x"yes"; then
AC_DEFINE_UNQUOTED(HAVE_VECTOR_SHUFFLE, 1,