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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.target/] [i386/] [mmx-8.c] - Blame information for rev 318

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Line No. Rev Author Line
1 318 jeremybenn
/* PR middle-end/37809 */
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/* { dg-do run } */
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/* { dg-options "-O2 -mmmx" } */
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#include <mmintrin.h>
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#include "mmx-check.h"
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// Various tests of cases where it is incorrect to optimise vectors as if they
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// were integers of the same width.
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extern void abort (void);
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void __attribute__ ((noinline))
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Sshift()
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{
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    volatile __m64 y = (__m64) 0xffffffffll;
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    __m64 x = y & (__m64) 0xffffffffll;
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    x = _m_psradi (x, 1);
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    x &= (__m64) 0x80000000ll;
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    if (0 == (long long) x)
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        abort();
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}
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#define SHIFTU(F,B,S,T)                         \
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    void F()                                    \
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    {                                           \
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        volatile __m64 y = (__m64) 0ll;         \
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        __m64 x = y | (__m64) (1llu << B);      \
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        if (S > 0)                              \
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            x = _m_pslldi (x, S);               \
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        else                                    \
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            x = _m_psrldi (x, -S);              \
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        if (T > 0)                              \
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            x = _m_pslldi (x, T);               \
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        else                                    \
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            x = _m_psrldi (x, -T);              \
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        x &= (__m64) (1llu << (B + S + T));     \
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        if ((long long) x)                      \
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            abort();                            \
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    }
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SHIFTU (shiftU1, 31, 1, -1)
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SHIFTU (shiftU2, 32, -1, 1)
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SHIFTU (shiftU3, 31, 1, 0)
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SHIFTU (shiftU4, 32, -1, 0)
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void __attribute__ ((noinline))
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add_1()
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{
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    volatile long long ONE = 1;
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    long long one = ONE;
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    __m64 a = (__m64) one;
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    __m64 b = (__m64) -one;
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    __m64 c = a + b;
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    if (0 == (long long) c)
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        abort();
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}
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void __attribute__ ((noinline))
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add_2()
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{
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    volatile long long ONE = 1;
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    long long one = ONE;
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    __m64 a = (__m64) one;
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    __m64 b = (__m64) -one;
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    __m64 c = _m_paddd (a, b);
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    if (0 == (long long) c)
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        abort();
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}
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void __attribute__ ((noinline))
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mult_1()
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{
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    volatile __m64 y = (__m64) 0ll;
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    __m64 x = y | (__m64) (1ll << 32);
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    x = x * (__m64) 1ll;
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    x &= (__m64) (1ll << 32);
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    if (0 != (long long) x)
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        abort();
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}
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void __attribute__ ((noinline))
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mult_2()
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{
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    volatile int foo = 1;
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    unsigned long long one = foo & 1;
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    __m64 x = (__m64) (one << 16);
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    x *= x;
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    x &= (__m64) (1ll << 32);
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    if (0 != (long long) x)
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        abort();
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}
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void __attribute__ ((noinline))
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mult_3()
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{
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    volatile __m64 y = (__m64) (1ll << 32);
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    __m64 a = y;
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    __m64 b = y * (__m64) 1ll;
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    if (((long long) a) == (long long) b)
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        abort();
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}
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void __attribute__ ((noinline))
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div_1()
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{
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    volatile __m64 y = (__m64) 0ll;
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    __m64 x = y | (__m64) (1ull << 32);
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    x |= (__m64) 1ull;
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    x = x / x;
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    if (1ll == (long long) x)
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        abort();
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}
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void mmx_test (void)
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{
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    Sshift();
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    shiftU1();
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    shiftU2();
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    shiftU3();
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    shiftU4();
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    add_1();
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    add_2();
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    mult_1();
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    mult_2();
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    mult_3();
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    div_1();
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}

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