38 lines
605 B
C
38 lines
605 B
C
/* { dg-do run } */
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/* { dg-options "-O2 -m3dnow" } */
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#include "mmx-3dnow-check.h"
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#include <mm3dnow.h>
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typedef union {
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float f[2];
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__m64 v;
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} vec_t;
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void __attribute__ ((noinline))
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Butterfly_3 (__m64 * D, __m64 SC)
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{
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__m64 T, T1;
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T = _m_pfmul (D[1], SC);
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T1 = D[0];
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D[0] = _m_pfadd (T1, T);
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D[1] = _m_pfsub (T1, T);
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}
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static void
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mmx_3dnow_test (void)
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{
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vec_t D[2] = { { .f = { 2.0f, 3.0f } },
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{ .f = { 4.0f, 5.0f } } };
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const vec_t SC = { .f = { 1.0f, 1.0f } };
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Butterfly_3 (&D[0].v, SC.v);
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_m_femms ();
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if (D[1].f[0] != -2.0f || D[1].f[1] != -2.0f)
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abort ();
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}
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