1 //===-- aeabi_drsub.c - Test __aeabi_drsub --------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file tests __aeabi_drsub for the compiler_rt library. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include <stdio.h> 15 #include <stdlib.h> 16 #include <math.h> 17 18 19 #if __arm__ 20 extern __attribute__((pcs("aapcs"))) double __aeabi_drsub(double a, double b); 21 22 int test__aeabi_drsub(double a, double b, double expected) 23 { 24 double actual = __aeabi_drsub(a, b); 25 if (actual != expected) 26 printf("error in __aeabi_drsub(%f, %f) = %f, expected %f\n", 27 a, b, actual, expected); 28 return actual != expected; 29 } 30 #endif 31 32 int main() 33 { 34 #if __arm__ 35 if (test__aeabi_drsub(1.0, 1.0, 0.0)) 36 return 1; 37 if (test__aeabi_drsub(1234.567, 765.4321, -469.134900)) 38 return 1; 39 if (test__aeabi_drsub(-123.0, -678.0, -555.0)) 40 return 1; 41 if (test__aeabi_drsub(0.0, -0.0, 0.0)) 42 return 1; 43 #else 44 printf("skipped\n"); 45 #endif 46 return 0; 47 } 48
