More scheduler infrastructure.

[pf3gnuchains/gcc-fork.git] / gcc / md.texi

diff --git a/gcc/md.texi b/gcc/md.texi
index 2c464b5..5ab116a 100644 (file)
--- a/gcc/md.texi
+++ b/gcc/md.texi
@@ -2858,6 +2858,14 @@ A typical @code{conditional_trap} pattern looks like
   "@dots{}")
 @end smallexample
 
+@cindex @code{cycle_display} instruction pattern
+@item @samp{cycle_display}
+
+This pattern, if present, will be emitted by the instruction scheduler at
+the beginning of each new clock cycle.  This can be used for annotating the
+assembler output with cycle counts.  Operand 0 is a @code{const_int} that
+holds the clock cycle.
+
 @end table
 
 @node Pattern Ordering