From 0ea78edbd7375b83ae45d275e89fc8a5e0b25ebb Mon Sep 17 00:00:00 2001
From: Toshiyasu Morita <tm@netcom.com>
Date: Sat, 3 Apr 1999 15:29:41 +0000
Subject: [PATCH] * gcc.texi: Add info on regmove pass

From-SVN: r26160
---
 gcc/ChangeLog |  2 ++
 gcc/gcc.texi  | 12 ++++++++++++
 2 files changed, 14 insertions(+)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 04fa23f6ff2..07b77f8a9eb 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,7 @@
 Sat Apr  3 16:22:59 1999  Toshiyasu Morita  (tm@netcom.com)
 
+	* gcc.texi: Add info on regmove pass
+
 	* regmove.c (fixup_match_1): Consistently evaluate
 	HAVE_POST_INCREMENT and HAVE_POST_DECREMENT.
 
diff --git a/gcc/gcc.texi b/gcc/gcc.texi
index 4f9ceeb4ea8..16828160c32 100644
--- a/gcc/gcc.texi
+++ b/gcc/gcc.texi
@@ -3458,6 +3458,18 @@ The option @samp{-dc} causes a debugging dump of the RTL code after
 this pass.  This dump file's name is made by appending @samp{.combine}
 to the input file name.
 
+@cindex register movement
+@item
+Register movement (@file{regmove.c}). This pass looks for cases where
+matching constraints would force an instruction to need a reload, and
+this reload would be a register to register move.  It them attempts
+to change the registers used by the instruction to avoid the move
+instruction.
+
+The option @samp{-dN} causes a debugging dump of the RTL code after
+this pass.  This dump file's name is made by appending @samp{.regmove}
+to the input file name.
+
 @cindex instruction scheduling
 @cindex scheduling, instruction
 @item
-- 
2.30.2