diff options
Diffstat (limited to 'gcc/config/i386/i386-modes.def')
| -rw-r--r-- | gcc/config/i386/i386-modes.def | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/gcc/config/i386/i386-modes.def b/gcc/config/i386/i386-modes.def index 3a7c3e6d392..ee36637bea7 100644 --- a/gcc/config/i386/i386-modes.def +++ b/gcc/config/i386/i386-modes.def @@ -18,21 +18,20 @@ along with GCC; see the file COPYING. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -/* x86_64 ABI specifies both XF and TF modes. +/* The x86_64 ABI specifies both XF and TF modes. XFmode is __float80 is IEEE extended; TFmode is __float128 - is IEEE quad. + is IEEE quad. */ - IEEE extended is 128 bits wide, except in ILP32 mode, but we - have to say it's 12 bytes so that the bitsize and wider_mode - tables are correctly set up. We correct its size below. */ +FRACTIONAL_FLOAT_MODE (XF, 80, 12, ieee_extended_intel_96_format); +FLOAT_MODE (TF, 16, ieee_quad_format); -FLOAT_MODE (XF, 12, ieee_extended_intel_96_format); +/* In ILP32 mode, XFmode has size 12 and alignment 4. + In LP64 mode, XFmode has size and alignment 16. */ ADJUST_FLOAT_FORMAT (XF, (TARGET_128BIT_LONG_DOUBLE ? &ieee_extended_intel_128_format : &ieee_extended_intel_96_format)); ADJUST_BYTESIZE (XF, TARGET_128BIT_LONG_DOUBLE ? 16 : 12); ADJUST_ALIGNMENT (XF, TARGET_128BIT_LONG_DOUBLE ? 16 : 4); -FLOAT_MODE (TF, 16, ieee_quad_format); /* Add any extra modes needed to represent the condition code. |