diff options
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/md.texi | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/doc/md.texi b/gcc/doc/md.texi index de1b58a..add8920 100644 --- a/gcc/doc/md.texi +++ b/gcc/doc/md.texi @@ -4980,6 +4980,15 @@ Signed minimum and maximum operations. When used with floating point, if both operands are zeros, or if either operand is @code{NaN}, then it is unspecified which of the two operands is returned as the result. +@cindex @code{fmin@var{m}3} instruction pattern +@cindex @code{fmax@var{m}3} instruction pattern +@item @samp{fmin@var{m}3}, @samp{fmax@var{m}3} +IEEE-conformant minimum and maximum operations. If one operand is a quiet +@code{NaN}, then the other operand is returned. If both operands are quiet +@code{NaN}, then a quiet @code{NaN} is returned. In the case when gcc supports +signalling @code{NaN} (-fsignaling-nans) an invalid floating point exception is +raised and a quiet @code{NaN} is returned. + @cindex @code{reduc_smin_@var{m}} instruction pattern @cindex @code{reduc_smax_@var{m}} instruction pattern @item @samp{reduc_smin_@var{m}}, @samp{reduc_smax_@var{m}} |