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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.target/] [i386/] [bmi2-mulx64-2.c] - Rev 848
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/* { dg-do run { target { bmi2 && { ! ia32 } } } } */ /* { dg-options "-mbmi2 -O2" } */ #include <x86intrin.h> #include "bmi2-check.h" __attribute__((noinline)) unsigned __int128 calc_mul_u64 (unsigned long long volatile a, unsigned long long b) { unsigned __int128 res = 0; int i; for (i = 0; i < b; ++i) res += (unsigned __int128) a; return res; } __attribute__((noinline)) unsigned long long calc_mulx_u64 (unsigned long long x, unsigned long long y, unsigned long long *res_h) { return _mulx_u64 (x, y, res_h); } static void bmi2_test () { unsigned i; unsigned long long a = 0xce7ace0ce7ace0; unsigned long long b = 0xface; unsigned long long res_l, res_h; unsigned __int128 res, res_ref; for (i=0; i<5; ++i) { a = a * (i + 1); b = b / (i + 1); res_ref = calc_mul_u64 (a, b); res_l = calc_mulx_u64 (a, b, &res_h); res = ((unsigned __int128) res_h << 64) | res_l; if (res != res_ref) abort(); } }
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