38 lines
874 B
C
38 lines
874 B
C
// REQUIRES: arm-target-arch || armv6m-target-arch
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// RUN: %clang_builtins %s %librt -o %t && %run %t
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#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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#if __arm__
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extern __attribute__((pcs("aapcs"))) float __aeabi_frsub(float a, float b);
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int test__aeabi_frsub(float a, float b, float expected)
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{
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float actual = __aeabi_frsub(a, b);
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if (actual != expected)
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printf("error in __aeabi_frsub(%f, %f) = %f, expected %f\n",
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a, b, actual, expected);
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return actual != expected;
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}
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#endif
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int main()
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{
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#if __arm__
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if (test__aeabi_frsub(1.0, 1.0, 0.0))
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return 1;
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if (test__aeabi_frsub(1234.567, 765.4321, -469.134900))
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return 1;
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if (test__aeabi_frsub(-123.0, -678.0, -555.0))
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return 1;
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if (test__aeabi_frsub(0.0, -0.0, 0.0))
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return 1;
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#else
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printf("skipped\n");
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#endif
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return 0;
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}
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