105 lines · c
1/*2 * strcmp test.3 *4 * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.5 * See https://llvm.org/LICENSE.txt for license information.6 * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception7 */8 9#include <stdint.h>10#include <stdio.h>11#include <stdlib.h>12#include <string.h>13#include "stringlib.h"14 15static const struct fun16{17 const char *name;18 int (*fun)(const char *s1, const char *s2);19} funtab[] = {20#define F(x) {#x, x},21F(strcmp)22#if __aarch64__23F(__strcmp_aarch64)24# if __ARM_FEATURE_SVE25F(__strcmp_aarch64_sve)26# endif27#elif __arm__28# if __ARM_ARCH >= 7 && __ARM_ARCH_ISA_ARM >= 129F(__strcmp_arm)30# elif __ARM_ARCH == 6 && __ARM_ARCH_6M__ >= 131F(__strcmp_armv6m)32# endif33#endif34#undef F35 {0, 0}36};37 38static int test_status;39#define ERR(...) (test_status=1, printf(__VA_ARGS__))40 41#define A 3242#define LEN 25000043static char s1buf[LEN+2*A];44static char s2buf[LEN+2*A];45 46static void *alignup(void *p)47{48 return (void*)(((uintptr_t)p + A-1) & -A);49}50 51static void test(const struct fun *fun, int s1align, int s2align, int len, int diffpos)52{53 char *src1 = alignup(s1buf);54 char *src2 = alignup(s2buf);55 char *s1 = src1 + s1align;56 char *s2 = src2 + s2align;57 int r;58 59 if (len > LEN || s1align >= A || s2align >= A)60 abort();61 if (diffpos > 1 && diffpos >= len-1)62 abort();63 64 for (int i = 0; i < len+A; i++)65 src1[i] = src2[i] = '?';66 for (int i = 0; i < len-1; i++)67 s1[i] = s2[i] = 'a' + i%23;68 if (diffpos > 1)69 s1[diffpos]++;70 s1[len] = s2[len] = '\0';71 72 r = fun->fun(s1, s2);73 74 if (((diffpos <= 1) && r != 0) || (diffpos > 1 && r == 0)) {75 ERR("%s(align %d, align %d, %d) failed, returned %d\n",76 fun->name, s1align, s2align, len, r);77 ERR("src1: %.*s\n", s1align+len+1, src1);78 ERR("src2: %.*s\n", s2align+len+1, src2);79 }80}81 82int main()83{84 int r = 0;85 for (int i=0; funtab[i].name; i++) {86 test_status = 0;87 for (int d = 0; d < A; d++)88 for (int s = 0; s < A; s++) {89 int n;90 for (n = 0; n < 100; n++) {91 test(funtab+i, d, s, n, 0);92 test(funtab+i, d, s, n, n / 2);93 }94 for (; n < LEN; n *= 2) {95 test(funtab+i, d, s, n, 0);96 test(funtab+i, d, s, n, n / 2);97 }98 }99 printf("%s %s\n", test_status ? "FAIL" : "PASS", funtab[i].name);100 if (test_status)101 r = -1;102 }103 return r;104}105