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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.target/] [i386/] [builtin-apply-mmx.c] - Rev 848
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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" } */ /* { 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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