__va_freg - Haiku

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__va_freg * __va_next_fp; /* next available fp register */

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__va_freg * __va_next_fp_limit; /* last available fp register */

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(AP).__va_next_fp = (__va_freg *) __builtin_saveregs (); \

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(AP).__va_next_fp = (__va_freg *) __builtin_saveregs (); \