mirror of
https://github.com/ceph/ceph
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28 lines
835 B
Plaintext
28 lines
835 B
Plaintext
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AC_DEFUN([AX_ARM_FEATURES],
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[
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AC_REQUIRE([AC_CANONICAL_HOST])
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case $target_cpu in
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arm*)
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AX_CHECK_COMPILE_FLAG(-mfpu=neon, ax_cv_support_neon_ext=yes, [])
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if test x"$ax_cv_support_neon_ext" = x"yes"; then
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ARM_NEON_FLAGS="-mfpu=neon -DARM_NEON"
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AC_SUBST(ARM_NEON_FLAGS)
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ARM_FLAGS="$ARM_FLAGS $ARM_NEON_FLAGS"
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AC_DEFINE(HAVE_NEON,,[Support NEON instructions])
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fi
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;;
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aarch64*)
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AX_CHECK_COMPILE_FLAG(-march=armv8-a+simd, ax_cv_support_neon_ext=yes, [])
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if test x"$ax_cv_support_neon_ext" = x"yes"; then
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ARM_NEON_FLAGS="-march=armv8-a+simd -DARCH_AARCH64 -DARM_NEON"
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AC_SUBST(ARM_NEON_FLAGS)
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ARM_FLAGS="$ARM_FLAGS $ARM_NEON_FLAGS"
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AC_DEFINE(HAVE_NEON,,[Support NEON instructions])
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fi
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;;
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esac
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AC_SUBST(ARM_FLAGS)
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])
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