43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
/* __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 { ! *-*-darwin* } } } */
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/* { dg-options "-O2 -mmmx" } */
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/* { dg-require-effective-target ilp32 } */
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#include "mmx-check.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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static void
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mmx_test (void)
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{
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if (bar (116.0) != 117.0)
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abort ();
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}
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