diff options
Diffstat (limited to 'libgcc')
| -rw-r--r-- | libgcc/config/i386/sfp-machine.h | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/libgcc/config/i386/sfp-machine.h b/libgcc/config/i386/sfp-machine.h index f15d29d..172ebc7 100644 --- a/libgcc/config/i386/sfp-machine.h +++ b/libgcc/config/i386/sfp-machine.h @@ -75,10 +75,24 @@ void __sfp_handle_exceptions (int); /* Define ALIASNAME as a strong alias for NAME. */ #if defined __MACH__ -/* Mach-O doesn't support aliasing. If these functions ever return - anything but CMPtype we need to revisit this... */ +/* Mach-O doesn't support aliasing, so we build a secondary function for + the alias - we need to do a bit of a dance to find out what the type of + the arguments is and then apply that to the secondary function. + If these functions ever return anything but CMPtype we need to revisit + this... */ +typedef float alias_HFtype __attribute__ ((mode (HF))); +typedef float alias_SFtype __attribute__ ((mode (SF))); +typedef float alias_DFtype __attribute__ ((mode (DF))); +typedef float alias_TFtype __attribute__ ((mode (TF))); +#define ALIAS_SELECTOR \ + CMPtype (*) (alias_HFtype, alias_HFtype): (alias_HFtype) 0, \ + CMPtype (*) (alias_SFtype, alias_SFtype): (alias_SFtype) 0, \ + CMPtype (*) (alias_DFtype, alias_DFtype): (alias_DFtype) 0, \ + CMPtype (*) (alias_TFtype, alias_TFtype): (alias_TFtype) 0 #define strong_alias(name, aliasname) \ - CMPtype aliasname (TFtype a, TFtype b) { return name(a, b); } + CMPtype aliasname (__typeof (_Generic (name, ALIAS_SELECTOR)) a, \ + __typeof (_Generic (name, ALIAS_SELECTOR)) b) \ + { return name (a, b); } #else # define strong_alias(name, aliasname) _strong_alias(name, aliasname) # define _strong_alias(name, aliasname) \ |