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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.target/] [i386/] [bmi2-mulx32-1.c] - Rev 848
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/* { dg-do run { target { bmi2 && { ia32 } } } } */ /* { dg-options "-mbmi2 -O2" } */ #include "bmi2-check.h" __attribute__((noinline)) unsigned long long calc_mul_u32 (unsigned volatile a, unsigned b) { unsigned long long res = 0; int i; for (i = 0; i < b; ++i) res += a; return res; } __attribute__((noinline, regparm (2))) unsigned long long gen_mulx (unsigned a, unsigned b) { unsigned long long res; res = (unsigned long long)a * b; return res; } static void bmi2_test () { unsigned i; unsigned a = 0xce7ace0; unsigned b = 0xfacefff; unsigned long long res, res_ref; for (i = 0; i < 5; ++i) { a = a * (i + 1); b = b / (i + 1); res_ref = calc_mul_u32 (a, b); res = gen_mulx (a, b); if (res != res_ref) abort(); } }
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