re PR rtl-optimization/60651 (Mode switching instructions are sometimes emitted in...

[gcc.git] / gcc / doc / tm.texi

diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi
index f7024a74579cf2c09cc80f4f23bb0df62412b91f..b8ca17e001d2176bb973e535fa66c3b2141f7eb5 100644 (file)
--- a/gcc/doc/tm.texi
+++ b/gcc/doc/tm.texi
@@ -9778,6 +9778,8 @@ for @var{entity}.  For any fixed @var{entity}, @code{mode_priority_to_mode}
 Generate one or more insns to set @var{entity} to @var{mode}.
 @var{hard_reg_live} is the set of hard registers live at the point where
 the insn(s) are to be inserted.
+Sets of a lower numbered entity will be emitted before sets of a higher
+numbered entity to a mode of the same or lower priority.
 @end defmac
 
 @node Target Attributes