diff options
Diffstat (limited to 'runtime/tests/math/div64.c')
| -rw-r--r-- | runtime/tests/math/div64.c | 182 |
1 files changed, 0 insertions, 182 deletions
diff --git a/runtime/tests/math/div64.c b/runtime/tests/math/div64.c deleted file mode 100644 index ed033d5b..00000000 --- a/runtime/tests/math/div64.c +++ /dev/null @@ -1,182 +0,0 @@ -/* test of 64-bit division */ -#include "runtime.h" -#define LLONG_MAX 0x7fffffffffffffffLL -#ifndef LLONG_MIN -#define LLONG_MIN 0x8000000000000000LL -#endif - -/* This tests a lot of edge conditions.*/ -/* Then it does 10 million random divisions, comparing the result */ -/* with the results from glibc */ - -int main() -{ - int64_t x, y, div1, mod1, div2, mod2; - const char *error; - int i; - - x = 0; - y = 0; - div1 = _stp_div64(&error, x, y); - if (div1 != 0 || *error != 'd') { - printf("Failed 0/0 test\n"); - exit(-1); - } - error = ""; - - mod1 = _stp_mod64(&error, x, y); - if (mod1 != 0 || *error != 'd') { - printf("Failed 0%0 test\n"); - exit(-1); - } - error = ""; - - x = 1; - y = 0; - div1 = _stp_div64(&error, x, y); - if (div1 != 0 || *error != 'd') { - printf("Failed 1/0 test\n"); - exit(-1); - } - error = ""; - - mod1 = _stp_mod64(&error, x, y); - if (mod1 != 0 || *error != 'd') { - printf("Failed 1%0 test\n"); - exit(-1); - } - error = ""; - - x = 0; - y = 1; - - div1 = _stp_div64(&error, x, y); - if (*error || div1 != 0) { - printf("Failed 0/1 test\n"); - exit(-1); - } - - mod1 = _stp_mod64(&error, x, y); - if (*error || mod1 != 0) { - printf("Failed 0%1 test\n"); - exit(-1); - } - - x = -1; - y = -1; - - div1 = _stp_div64(&error, x, y); - if (*error || div1 != 1) { - printf("Failed -1/-1 test\n"); - exit(-1); - } - - mod1 = _stp_mod64(&error, x, y); - if (*error || mod1 != 0) { - printf("Failed -1%-1 test\n"); - exit(-1); - } - - - for (y = -1; y < 2; y++) { - if (y == 0) - continue; - -#ifndef __LP64__ - for (x = LONG_MIN - 1LL; x < LONG_MIN + 2LL; x++ ) { - div1 = _stp_div64(&error, x, y); - mod1 = _stp_mod64(&error, x, y); - div2 = x/y; - mod2 = x%y; - if (div1 != div2) { - printf ("%lld/%lld (%llx/%llx) was %lld and should have been %lld\n", x,y,x,y,div1,div2); - exit (-1); - } - if (mod1 != mod2) { - printf ("%lld\%%%lld (%llx/%llx) was %lld and should have been %lld\n", x,y,x,y,mod1,mod2); - exit (-1); - } - } - - for (x = LONG_MAX - 1LL; x < LONG_MAX + 2LL; x++ ) { - div1 = _stp_div64(&error, x, y); - mod1 = _stp_mod64(&error, x, y); - div2 = x/y; - mod2 = x%y; - if (div1 != div2) { - printf ("%lld/%lld (%llx/%llx) was %lld and should have been %lld\n", x,y,x,y,div1,div2); - exit (-1); - } - if (mod1 != mod2) { - printf ("%lld\%%%lld (%llx/%llx) was %lld and should have been %lld\n", x,y,x,y,mod1,mod2); - exit (-1); - } - } -#endif - - for (x = LLONG_MIN; x <= LLONG_MIN + 1LL; x++ ) { - div1 = _stp_div64(&error, x, y); - mod1 = _stp_mod64(&error, x, y); -#ifdef __LP64__ - if (x == LLONG_MIN && y == -1) { - if (div1 != LLONG_MIN) { - printf ("%lld/%lld was %lld and should have been %lld (overflow)\n", x,y,div1,LLONG_MIN); - exit(-1); - } - continue; - } -#endif - div2 = x/y; - mod2 = x%y; - if (div1 != div2) { - printf ("%lld/%lld was %lld and should have been %lld\n", x,y,div1,div2); - exit (-1); - } - if (mod1 != mod2) { - printf ("%lld\%%%lld was %lld and should have been %lld\n", x,y,mod1,mod2); - exit (-1); - } - } - - for (x = LONG_MAX - 1; x > 0 && x <= LONG_MAX; x++ ) { - div1 = _stp_div64(&error, x, y); - mod1 = _stp_mod64(&error, x, y); - div2 = x/y; - mod2 = x%y; - if (div1 != div2) { - printf ("%lld/%lld was %lld and should have been %lld\n", x,y,div1,div2); - exit (-1); - } - if (mod1 != mod2) { - printf ("%lld\%%%lld was %lld and should have been %lld\n", x,y,mod1,mod2); - exit (-1); - } - } - } - - /* just for fun, do ten million random divisions and mods */ - for (i = 0; i < 10000000; i++) { - x = mrand48(); - y = mrand48(); - if (y == 0) { - i--; - continue; - } - - div1 = _stp_div64(NULL, x, y); - mod1 = _stp_mod64(NULL, x, y); - div2 = x/y; - mod2 = x%y; - - if (div1 != div2) { - printf ("%lld/%lld was %lld and should have been %lld\n", x,y,div1,div2); - exit (-1); - } - if (mod1 != mod2) { - printf ("%lld\%%%lld was %lld and should have been %lld\n", x,y,mod1,mod2); - exit (-1); - } - } - printf("OK\n"); - return 0; -} |