* Makefile.in (USER_H): Add ginclude/float.h.

[pf3gnuchains/gcc-fork.git] / gcc / doc / tm.texi

diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi
index be3f9b4..770faef 100644 (file)
--- a/gcc/doc/tm.texi
+++ b/gcc/doc/tm.texi
@@ -1540,8 +1540,18 @@ the largest value that @code{LONG_DOUBLE_TYPE_SIZE} can have at run-time.
 This is used in @code{cpp}.
 
 @findex INTEL_EXTENDED_IEEE_FORMAT
+@item INTEL_EXTENDED_IEEE_FORMAT
 Define this macro to be 1 if the target machine uses 80-bit floating-point
 values with 128-bit size and alignment.  This is used in @file{real.c}.
+This also distinguishes the Intel 80-bit floating-point format from the
+Motorola 96-bit floating-point format.
+
+@findex TARGET_FLT_EVAL_METHOD
+@item TARGET_FLT_EVAL_METHOD
+A C expression for the value for @code{FLT_EVAL_METHOD} in @file{float.h},
+assuming, if applicable, that the floating-point control word is in its
+default state.  If you do not define this macro the value of
+@code{FLT_EVAL_METHOD} will be zero.
 
 @findex WIDEST_HARDWARE_FP_SIZE
 @item WIDEST_HARDWARE_FP_SIZE