diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c2624bcbc0f885deb621419fa8e1f3a0ffff3f93..2c3b82834748fb724309747c5652b03972a10aad 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2005-05-04  Gerald Pfeifer  <gerald@pfeifer.com>
+
+	* doc/contrib.texi (Contributors): Add Mostafa Hagog and Ayal Zaks.
+
 2005-05-04 Fariborz Jahanian <fjahanian@apple.com>
 
 	* config/rs6000/rs6000.c (rs6000_emit_prologue): Emit
diff --git a/gcc/doc/contrib.texi b/gcc/doc/contrib.texi
index 209d32c1191e9c1cf9275a93dca1f4f929759a7c..beee30fb0f7d4e27320b0efd1f6c91ed3485870c 100644
--- a/gcc/doc/contrib.texi
+++ b/gcc/doc/contrib.texi
@@ -316,6 +316,9 @@ tools, the support for Dwarf symbolic debugging information, and much of
 the support for System V Release 4.  He has also worked heavily on the
 Intel 386 and 860 support.
 
+@item
+Mostafa Hagog for Swing Modulo Scheduling (SMS) and post reload GCSE@.
+
 @item
 Bruno Haible for improvements in the runtime overhead for EH, new
 warnings and assorted bug fixes.
@@ -974,6 +977,9 @@ description for the Tron architecture (specifically, the Gmicro).
 @item
 Kevin Zachmann helped port GCC to the Tahoe.
 
+@item
+Ayal Zaks for Swing Modulo Scheduling (SMS).
+
 @item
 Xiaoqiang Zhang for work on gfortran.