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      1 //===-- subdf3vfp_test.c - Test __subdf3vfp -------------------------------===//
      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 __subdf3vfp 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 double __subdf3vfp(double a, double b);
     21 
     22 int test__subdf3vfp(double a, double b)
     23 {
     24     double actual = __subdf3vfp(a, b);
     25     double expected = a - b;
     26     if (actual != expected)
     27         printf("error in test__subdf3vfp(%f, %f) = %f, expected %f\n",
     28                a, b, actual, expected);
     29     return actual != expected;
     30 }
     31 #endif
     32 
     33 int main()
     34 {
     35 #if __arm__
     36     if (test__subdf3vfp(1.0, 1.0))
     37         return 1;
     38     if (test__subdf3vfp(1234.567, 765.4321))
     39         return 1;
     40     if (test__subdf3vfp(-123.0, -678.0))
     41         return 1;
     42     if (test__subdf3vfp(0.0, -0.0))
     43         return 1;
     44 #else
     45     printf("skipped\n");
     46 #endif
     47     return 0;
     48 }
     49