Viewing file:  builtin-apply-mmx.c (1.07 KB) -rw-r--r--
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/* __builtin_apply_args () and __builtin_return () built-in functions does
not function properly when -mmmx is used in compile flags.
__builtin_apply_args () saves all registers that pass arguments to a
function, including %mm0-%mm3, to a memory block, and __builtin_return ()
restores %mm0, from a return memory block, as it can be used as a
function return register. Unfortunatelly, when MMX registers are touched,
i387 FPU switches to MMX mode, and no FP operation is possible until emms
instruction is issued. */
/* This test case is adapted from gcc.dg/builtin-apply4.c. */
/* { dg-do run { xfail { ! *-*-darwin* } } } */
/* { dg-options "-O2 -mmmx -fgnu89-inline" } */
/* { dg-require-effective-target ia32 } */
#include "mmx-check.h"
extern void abort (void);
double
foo (double arg)
{
if (arg != 116.0)
abort ();
return arg + 1.0;
}
inline double
bar (double arg)
{
foo (arg);
__builtin_return (__builtin_apply ((void (*)()) foo,
__builtin_apply_args (), 16));
}
static void
mmx_test (void)
{
if (bar (116.0) != 117.0)
abort ();
}
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