From what I can tell, at least icc 13.0.1+
support __int128_t
and __uint128_t
. Courtesy of Matt Godbolt's Compiler Explorer:
__int128_t ai (__int128_t x, __int128_t y) {
return x + y;
}
__int128_t mi (__int128_t x, __int128_t y) {
return x * y;
}
__int128_t di (__int128_t x, __int128_t y) {
return x / y;
}
__int128_t ri (__int128_t x, __int128_t y) {
return x % y;
}
compiles to:
L__routine_start_ai_0:
ai:
add rdi, rdx #2.14
mov rax, rdi #2.14
adc rsi, rcx #2.14
mov rdx, rsi #2.14
ret #2.14
L__routine_start_mi_1:
mi:
mov rax, rdi #6.14
imul rsi, rdx #6.14
imul rcx, rdi #6.14
mul rdx #6.14
add rsi, rcx #6.14
add rdx, rsi #6.14
ret #6.14
L__routine_start_di_2:
di:
push rsi #9.44
call __divti3 #10.14
pop rcx #10.14
ret #10.14
L__routine_start_ri_3:
ri:
push rsi #13.44
call __modti3 #14.14
pop rcx #14.14
ret #14.14
with icc 13.0.1
(http://goo.gl/UnxEFt).