diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index bc3a2250a72f740332d0215e37a8ca94b29cfcef..07a75fbc9a009ba22b42712bc92a0042942d2022 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2001-07-14  Tim Josling  <tej@melbpc.org.au>
+
+	* tree.def (EXPON_EXPR) remove. Never supported anyway.
+
 2001-07-14  John David Anglin  <dave@hiauly1.hia.nrc.ca>
 
 	* pa.md: Remove unused constraints from define_split's.
diff --git a/gcc/f/ChangeLog b/gcc/f/ChangeLog
index ef3f81bc6bec2cfd2fb8bf978296db1662641355..ca563649d9714d0d97398b86d42709fee2f19007 100644
--- a/gcc/f/ChangeLog
+++ b/gcc/f/ChangeLog
@@ -1,3 +1,8 @@
+2001-07-14  Tim Josling  <tej@melbpc.org.au>
+
+	* com.c (ffecom_overlap_): Remove references to EXPON_EXPR.
+	(ffecom_tree_canonize_ref_): Likewise.
+
 2001-07-10  James Smaby  <jsmaby@virgo.umeche.maine.edu>
 
 	* intdoc.in: Fix the definition of COMPLEX ABS.
diff --git a/gcc/f/com.c b/gcc/f/com.c
index c5a50193e99bfb1afe999408a0b9f66e661e7b9f..f8614401d7db7f3791e40e71c17569ebd971656c 100644
--- a/gcc/f/com.c
+++ b/gcc/f/com.c
@@ -1558,7 +1558,6 @@ ffecom_overlap_ (tree dest_decl, tree dest_offset, tree dest_size,
     case FIX_FLOOR_EXPR:
     case FIX_ROUND_EXPR:
     case FLOAT_EXPR:
-    case EXPON_EXPR:
     case NEGATE_EXPR:
     case MIN_EXPR:
     case MAX_EXPR:
@@ -9044,7 +9043,6 @@ ffecom_tree_canonize_ref_ (tree *decl, tree *offset,
     case FIX_FLOOR_EXPR:
     case FIX_ROUND_EXPR:
     case FLOAT_EXPR:
-    case EXPON_EXPR:
     case NEGATE_EXPR:
     case MIN_EXPR:
     case MAX_EXPR:
diff --git a/gcc/java/ChangeLog b/gcc/java/ChangeLog
index 3d1b4b76fe0dd7133aeee5bca5fffba20731b720..a22012a5010f61873c8ebc8a60ea492f87491ca3 100644
--- a/gcc/java/ChangeLog
+++ b/gcc/java/ChangeLog
@@ -1,3 +1,7 @@
+2001-07-14  Tim Josling  <tej@melbpc.org.au>
+
+	* check-init.c (check_init): Remove references to EXPON_EXPR.
+
 2001-07-13  Tom Tromey  <tromey@redhat.com>
 
 	* jvspec.c (jvgenmain_spec): Remove -ffilelist-file from cc1
diff --git a/gcc/java/check-init.c b/gcc/java/check-init.c
index 19764439e0e0e882f0bd48c2b258be96eccebda8..05e3aa31ae627ee5e7e199e83d5813eec2d50ac1 100644
--- a/gcc/java/check-init.c
+++ b/gcc/java/check-init.c
@@ -624,7 +624,6 @@ check_init (exp, before)
     case FIX_CEIL_EXPR:
     case FIX_FLOOR_EXPR:
     case FIX_ROUND_EXPR:
-    case EXPON_EXPR:
     case ABS_EXPR:
     case FFS_EXPR:
       /* Avoid needless recursion. */
diff --git a/gcc/tree.def b/gcc/tree.def
index 198cdf5f38df79ecd4c3b74b86f615f3ec439a2d..4a78694ae8ed8d969671d724cd511baeb44019ef 100644
--- a/gcc/tree.def
+++ b/gcc/tree.def
@@ -599,10 +599,6 @@ DEFTREECODE (FIX_ROUND_EXPR, "fix_round_expr", '1', 1)
 /* Conversion of an integer to a real.  */
 DEFTREECODE (FLOAT_EXPR, "float_expr", '1', 1)
 
-/* Exponentiation.  Operands may have any types;
-   constraints on value type are not known yet.  */
-DEFTREECODE (EXPON_EXPR, "expon_expr", '2', 2)
-
 /* Unary negation.  */
 DEFTREECODE (NEGATE_EXPR, "negate_expr", '1', 1)