static void bmi_test() { unsigned i; long long src = 0xfacec0ffeefacec0; long long res, res_ref; for (i=0; i<5; ++i) { src = i + src << i; res_ref = calc_blsr_u64 (src, src); res = __blsr_u64 (src); if (res != res_ref) abort(); } }
unsigned long long test__blsr_u64(unsigned long long __X) { // CHECK-LABEL: test__blsr_u64 // CHECK: sub i64 %{{.*}}, 1 // CHECK: and i64 %{{.*}}, %{{.*}} return __blsr_u64(__X); }
unsigned long long test__blsr_u64(unsigned long long __X) { // CHECK: [[DEST:%.*]] = add i64 [[SRC:%.*]], -1 // CHECK-NEXT: %{{.*}} = and i64 [[DEST]], [[SRC]] return __blsr_u64(__X); }