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include(CheckCSourceCompiles)
function(check_x86_64_assembly)
check_c_source_compiles("
#include <stdint.h>
int main()
{
uint64_t a = 11, tmp;
__asm__ __volatile__(\"movq $0x100000000,%1; mulq %%rsi\" : \"+a\"(a) : \"S\"(tmp) : \"cc\", \"%rdx\");
}
" HAVE_X86_64_ASM)
set(HAVE_X86_64_ASM ${HAVE_X86_64_ASM} PARENT_SCOPE)
endfunction()
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