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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.target/] [i386/] [builtin-apply-mmx.c] - Blame information for rev 867

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Line No. Rev Author Line
1 149 jeremybenn
/* __builtin_apply_args () and __builtin_return () built-in functions does
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   not function properly when -mmmx is used in compile flags.
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   __builtin_apply_args () saves all registers that pass arguments to a
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   function, including %mm0-%mm3, to a memory block, and __builtin_return ()
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   restores %mm0, from a return memory block, as it can be used as a
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   function return register.  Unfortunatelly, when MMX registers are touched,
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   i387 FPU switches to MMX mode, and no FP operation is possible until emms
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   instruction is issued.  */
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/* This test case is adapted from gcc.dg/builtin-apply4.c.  */
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/* { dg-do run { xfail "*-*-*" } } */
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/* { dg-options "-O2 -mmmx" } */
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/* { dg-require-effective-target ilp32 } */
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#include "../../gcc.dg/i386-cpuid.h"
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extern void abort (void);
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double
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foo (double arg)
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{
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  if (arg != 116.0)
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    abort ();
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  return arg + 1.0;
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}
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inline double
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bar (double arg)
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{
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  foo (arg);
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  __builtin_return (__builtin_apply ((void (*)()) foo,
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                                     __builtin_apply_args (), 16));
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}
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int
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main (int argc, char **argv)
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{
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  unsigned long cpu_facilities;
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  cpu_facilities = i386_cpuid ();
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  if (!(cpu_facilities & bit_MMX))
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    /* If host has no MMX support, pass.  */
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    return 0;
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  if (bar (116.0) != 117.0)
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    abort ();
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  return 0;
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}

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