diff options
| -rw-r--r-- | longlong.h | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/longlong.h b/longlong.h index 2337cc940..1b1eb3bb8 100644 --- a/longlong.h +++ b/longlong.h @@ -997,8 +997,25 @@ extern UWtype __MPN(udiv_qrnnd) _PROTO ((UWtype *, UWtype, UWtype, UWtype)); } while (0) #endif /* __ns32000__ */ -/* FIXME: We should test _IBMR2 here when we add assembly support for the - system vendor compilers. */ +/* In the past we had a block of various #defines tested + _ARCH_PPC - AIX + _ARCH_PWR - AIX + __powerpc__ - gcc + __POWERPC__ - BEOS + __ppc__ - Darwin + PPC - old gcc, GNU/Linux, SysV + The plain PPC test was not good for vxWorks, since PPC is defined on all + CPUs there (eg. m68k too), as a constant one is expected to compare + CPU_FAMILY against. + + At any rate, this was pretty unattractive and a bit fragile. The use of + HAVE_HOST_CPU_FAMILY is designed to cut through it all and be sure of + getting the desired effect. + + ENHANCE-ME: We should test _IBMR2 here when we add assembly support for + the system vendor compilers. (Is that vendor compilers with inline asm, + or what?) */ + #if (HAVE_HOST_CPU_FAMILY_power || HAVE_HOST_CPU_FAMILY_powerpc) \ && W_TYPE_SIZE == 32 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ |