(builtin_compatibility)=

GCC Compatibility of Builtins

LLVM-libc is written with Clang as the reference compiler but is expected to build under GCC as well. Many headers reach for compiler intrinsics (__builtin_*) for fast paths and for IEEE-754 semantics. Not every __builtin_* exists in every compiler. a large family is Clang-only, and several others were added in specific GCC releases. This page records which builtins the libc code base references today and the minimum GCC basepoint that ships each one.

Builtin	gcc-5	gcc-6	gcc-7	gcc-8	gcc-9	gcc-10	gcc-11	gcc-12	gcc-13	gcc-14	gcc-15	gcc-16	gcc-17
__builtin_aarch64_get_fpcr		{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_aarch64_get_fpsr		{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_aarch64_set_fpcr		{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_aarch64_set_fpsr		{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_aarch64_wsr64											{{ check }}	{{ check }}	{{ check }}
__builtin_abs	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_addc											{{ check }}	{{ check }}	{{ check }}
__builtin_addcb
__builtin_addcl											{{ check }}	{{ check }}	{{ check }}
__builtin_addcll											{{ check }}	{{ check }}	{{ check }}
__builtin_addcs
__builtin_add_overflow		{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_addressof				{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_align_down
__builtin_align_up
__builtin_alloca	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_amdgcn_ldexp
__builtin_amdgcn_ldexpf
__builtin_amdgcn_s_sendmsg
__builtin_amdgcn_s_sleep
__builtin_amdgcn_workitem_id_x
__builtin_arm_get_fpscr		{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_arm_isb
__builtin_arm_set_fpscr		{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_arm_wsr64
__builtin_assume
__builtin_assume_aligned	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_bcmp	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_bit_cast								{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_bswap16	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_bswap32	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_bswap64	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_ceil	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_ceilf	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_clear_padding								{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_clz	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_clzg											{{ check }}	{{ check }}	{{ check }}
__builtin_clzl	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_clzll	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_clzs	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_complex	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_convertvector						{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_copysign	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_copysignf	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_copysignf16						{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_ctz	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_ctzg											{{ check }}	{{ check }}	{{ check }}
__builtin_ctzl	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_ctzll	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_ctzs	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_elementwise_abs
__builtin_elementwise_canonicalize
__builtin_elementwise_ceil
__builtin_elementwise_copysign
__builtin_elementwise_floor
__builtin_elementwise_fma
__builtin_elementwise_fmod
__builtin_elementwise_max
__builtin_elementwise_min
__builtin_elementwise_nearbyint
__builtin_elementwise_rint
__builtin_elementwise_round
__builtin_elementwise_roundeven
__builtin_elementwise_sqrt
__builtin_elementwise_trunc
__builtin_expect	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_fabs	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_fabsf	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_fabsf16							{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_floor	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_floorf	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_flt_rounds
__builtin_fma	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_fmaf	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_fmax	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_fmaxf	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_fmaxf16									{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_fmin	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_fminf	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_fminf16									{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_fmod	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_fmodf	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_fpclassify	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_frame_address	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_frexp	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_frexpf	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_func
__builtin_huge_val	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_huge_valf	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_ia32_ldmxcsr	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_ia32_pause	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_ia32_stmxcsr	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_inff	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_is_aligned
__builtin_is_constant_evaluated						{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_isfinite	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_isinf	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_isnan	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_isnormal	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_launder				{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_ldexp	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_ldexpf								{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_masked_compress_store
__builtin_masked_expand_load
__builtin_masked_gather
__builtin_masked_load
__builtin_masked_scatter
__builtin_masked_store
__builtin_memcmp	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_memcmp_inline
__builtin_memcpy	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_memcpy_inline
__builtin_memmove	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_memset	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_memset_inline
__builtin_mul_overflow		{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_nanf	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_nans	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_nansf	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_nansl	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_nearbyint	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_nearbyintf	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_nondeterministic_value
__builtin_nontemporal_store
__builtin_offsetof	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_popcount	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_popcountg											{{ check }}	{{ check }}	{{ check }}
__builtin_popcountl	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_popcountll	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_prefetch	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_readcyclecounter
__builtin_readsteadycounter
__builtin_reduce_add
__builtin_reduce_and
__builtin_reduce_max
__builtin_reduce_min
__builtin_reduce_mul
__builtin_reduce_or
__builtin_reduce_xor
__builtin_remainder	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_remainderf	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_return_address	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_rint	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_rintf	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_round	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_roundeven							{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_roundevenf							{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_roundf	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_sadd_overflow		{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_shufflevector									{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_signbit	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_snprintf	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_sqrt	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_sqrtf	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_strlen	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_subc											{{ check }}	{{ check }}	{{ check }}
__builtin_subcb
__builtin_subcl											{{ check }}	{{ check }}	{{ check }}
__builtin_subcll											{{ check }}	{{ check }}	{{ check }}
__builtin_subcs
__builtin_sub_overflow		{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_trap	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_trunc	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_truncf	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_unreachable	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}
__builtin_vectorelements
__has_builtin						{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}	{{ check }}