76 lines · c
1// RUN: %clang_builtins %s %librt -o %t && %run %t2// REQUIRES: librt_has_ctzti23// REQUIRES: int1284 5#include "int_lib.h"6#include <stdio.h>7 8#ifdef CRT_HAS_128BIT9 10// Returns: the number of trailing 0-bits11 12// Precondition: a != 013 14COMPILER_RT_ABI int __ctzti2(ti_int a);15 16int test__ctzti2(ti_int a, int expected)17{18 int x = __ctzti2(a);19 if (x != expected)20 {21 twords at;22 at.all = a;23 printf("error in __ctzti2(0x%llX%.16llX) = %d, expected %d\n",24 at.s.high, at.s.low, x, expected);25 }26 return x != expected;27}28 29char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0};30 31#endif32 33int main()34{35#ifdef CRT_HAS_128BIT36 if (test__ctzti2(0x00000001, 0))37 return 1;38 if (test__ctzti2(0x00000002, 1))39 return 1;40 if (test__ctzti2(0x00000003, 0))41 return 1;42 if (test__ctzti2(0x00000004, 2))43 return 1;44 if (test__ctzti2(0x00000005, 0))45 return 1;46 if (test__ctzti2(0x0000000A, 1))47 return 1;48 if (test__ctzti2(0x10000000, 28))49 return 1;50 if (test__ctzti2(0x20000000, 29))51 return 1;52 if (test__ctzti2(0x60000000, 29))53 return 1;54 if (test__ctzti2(0x80000000uLL, 31))55 return 1;56 if (test__ctzti2(0x0000050000000000uLL, 40))57 return 1;58 if (test__ctzti2(0x0200080000000000uLL, 43))59 return 1;60 if (test__ctzti2(0x7200000000000000uLL, 57))61 return 1;62 if (test__ctzti2(0x8000000000000000uLL, 63))63 return 1;64 if (test__ctzti2(make_ti(0x00000000A0000000LL, 0x0000000000000000LL), 93))65 return 1;66 if (test__ctzti2(make_ti(0xF000000000000000LL, 0x0000000000000000LL), 124))67 return 1;68 if (test__ctzti2(make_ti(0x8000000000000000LL, 0x0000000000000000LL), 127))69 return 1;70#else71 printf("skipped\n");72#endif73 74 return 0;75}76