50 lines
1.1 KiB
C
50 lines
1.1 KiB
C
/* Area: ffi_call
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Purpose: Check return value float.
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Limitations: none.
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PR: none.
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Originator: <andreast@gcc.gnu.org> 20050212 */
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/* { dg-do run } */
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#include "ffitest.h"
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/* Use volatile float to avoid false negative on ix86. See PR target/323. */
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static float return_fl(float fl1, float fl2, float fl3, float fl4)
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{
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volatile float sum;
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sum = fl1 + fl2 + fl3 + fl4;
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return sum;
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}
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int main (void)
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{
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ffi_cif cif;
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ffi_type *args[MAX_ARGS];
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void *values[MAX_ARGS];
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float fl1, fl2, fl3, fl4, rfl;
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volatile float sum;
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args[0] = &ffi_type_float;
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args[1] = &ffi_type_float;
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args[2] = &ffi_type_float;
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args[3] = &ffi_type_float;
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values[0] = &fl1;
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values[1] = &fl2;
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values[2] = &fl3;
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values[3] = &fl4;
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/* Initialize the cif */
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CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 4,
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&ffi_type_float, args) == FFI_OK);
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fl1 = 127.0;
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fl2 = 128.0;
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fl3 = 255.1;
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fl4 = 512.7;
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ffi_call(&cif, FFI_FN(return_fl), &rfl, values);
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printf ("%f vs %f\n", rfl, return_fl(fl1, fl2, fl3, fl4));
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sum = fl1 + fl2 + fl3 + fl4;
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CHECK(rfl == sum);
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exit(0);
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}
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