578b768733
Existing code in the sfp-machine header has been using __MACH__ as a guard for Mach-O, where currently symbols aliases are not supported. __MACH__ is not a sufficient guard for this, since the define is also emitted for HURD, at least. Fixed by amending the guard to use __APPLE__ instead. Signed-off-by: Iain Sandoe <iain@sandoe.co.uk> libgcc/ChangeLog: * config/i386/sfp-machine.h: Guard Mach-O-specific code using __APPLE__.
101 lines
3.2 KiB
C
101 lines
3.2 KiB
C
#ifdef __MINGW32__
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/* Make sure we are using gnu-style bitfield handling. */
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#define _FP_STRUCT_LAYOUT __attribute__ ((gcc_struct))
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#endif
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/* The type of the result of a floating point comparison. This must
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match `__libgcc_cmp_return__' in GCC for the target. */
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typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__)));
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#define CMPtype __gcc_CMPtype
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#ifdef __x86_64__
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#include "config/i386/64/sfp-machine.h"
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#else
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#include "config/i386/32/sfp-machine.h"
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#endif
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#define _FP_KEEPNANFRACP 1
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#define _FP_QNANNEGATEDP 0
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#define _FP_NANSIGN_H 1
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#define _FP_NANSIGN_S 1
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#define _FP_NANSIGN_D 1
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#define _FP_NANSIGN_E 1
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#define _FP_NANSIGN_Q 1
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/* Here is something Intel misdesigned: the specs don't define
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the case where we have two NaNs with same mantissas, but
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different sign. Different operations pick up different NaNs. */
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#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \
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do { \
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if (_FP_FRAC_GT_##wc(X, Y) \
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|| (_FP_FRAC_EQ_##wc(X,Y) && (OP == '+' || OP == '*'))) \
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{ \
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R##_s = X##_s; \
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_FP_FRAC_COPY_##wc(R,X); \
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} \
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else \
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{ \
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R##_s = Y##_s; \
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_FP_FRAC_COPY_##wc(R,Y); \
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} \
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R##_c = FP_CLS_NAN; \
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} while (0)
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#ifndef _SOFT_FLOAT
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#define FP_EX_INVALID 0x01
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#define FP_EX_DENORM 0x02
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#define FP_EX_DIVZERO 0x04
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#define FP_EX_OVERFLOW 0x08
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#define FP_EX_UNDERFLOW 0x10
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#define FP_EX_INEXACT 0x20
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#define FP_EX_ALL \
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(FP_EX_INVALID | FP_EX_DENORM | FP_EX_DIVZERO | FP_EX_OVERFLOW \
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| FP_EX_UNDERFLOW | FP_EX_INEXACT)
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void __sfp_handle_exceptions (int);
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#define FP_HANDLE_EXCEPTIONS \
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do { \
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if (__builtin_expect (_fex, 0)) \
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__sfp_handle_exceptions (_fex); \
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} while (0)
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#define FP_TRAPPING_EXCEPTIONS ((~_fcw >> FP_EX_SHIFT) & FP_EX_ALL)
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#define FP_ROUNDMODE (_fcw & FP_RND_MASK)
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#endif
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#define _FP_TININESS_AFTER_ROUNDING 1
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#define __LITTLE_ENDIAN 1234
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#define __BIG_ENDIAN 4321
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#define __BYTE_ORDER __LITTLE_ENDIAN
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/* Define ALIASNAME as a strong alias for NAME. */
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#if defined __APPLE__
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/* Mach-O doesn't support aliasing, so we build a secondary function for
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the alias - we need to do a bit of a dance to find out what the type of
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the arguments is and then apply that to the secondary function.
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If these functions ever return anything but CMPtype we need to revisit
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this... */
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typedef float alias_HFtype __attribute__ ((mode (HF)));
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typedef float alias_SFtype __attribute__ ((mode (SF)));
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typedef float alias_DFtype __attribute__ ((mode (DF)));
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typedef float alias_TFtype __attribute__ ((mode (TF)));
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#define ALIAS_SELECTOR \
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CMPtype (*) (alias_HFtype, alias_HFtype): (alias_HFtype) 0, \
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CMPtype (*) (alias_SFtype, alias_SFtype): (alias_SFtype) 0, \
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CMPtype (*) (alias_DFtype, alias_DFtype): (alias_DFtype) 0, \
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CMPtype (*) (alias_TFtype, alias_TFtype): (alias_TFtype) 0
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#define strong_alias(name, aliasname) \
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CMPtype aliasname (__typeof (_Generic (name, ALIAS_SELECTOR)) a, \
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__typeof (_Generic (name, ALIAS_SELECTOR)) b) \
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{ return name (a, b); }
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#else
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# define strong_alias(name, aliasname) _strong_alias(name, aliasname)
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# define _strong_alias(name, aliasname) \
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extern __typeof (name) aliasname __attribute__ ((alias (#name)));
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#endif
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