diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 7cf1f42fecf..f52143430ef 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -3,6 +3,8 @@
 	* tree-flow-inline.h: Fix a comment typo.
 	* doc/tree-ssa.texi: Fix a typo.
 
+	* tree-flow-inline.h, tree-ssa-operands.c: Fix comment typos.
+
 2005-04-29  Nathan Sidwell  <nathan@codesourcery.com>
 
 	* config/fr30/fr30.c (fr30_expand_prologue): Use gcc_assert and
diff --git a/gcc/tree-flow-inline.h b/gcc/tree-flow-inline.h
index d8a0b4b727c..5da85e049e1 100644
--- a/gcc/tree-flow-inline.h
+++ b/gcc/tree-flow-inline.h
@@ -314,7 +314,7 @@ first_safe_imm_use (imm_use_iterator *imm, tree var)
   return imm->imm_use;
 }
 
-/* Bump IMM to then next use in the list.  */
+/* Bump IMM to the next use in the list.  */
 static inline use_operand_p
 next_safe_imm_use (imm_use_iterator *imm)
 {
@@ -332,7 +332,7 @@ next_safe_imm_use (imm_use_iterator *imm)
       imm->imm_use = imm->imm_use->next;
       if (! end_safe_imm_use_p (imm))
 	{
-	  /* This isnt the end, link iternode before the next use.  */
+	  /* This isn't the end, link iternode before the next use.  */
 	  ptr->prev = imm->imm_use->prev;
 	  ptr->next = imm->imm_use;
 	  imm->imm_use->prev->next = ptr;
@@ -380,7 +380,7 @@ first_readonly_imm_use (imm_use_iterator *imm, tree var)
   return imm->imm_use;
 }
 
-/* Bump IMM to then next use in the list.  */
+/* Bump IMM to the next use in the list.  */
 static inline use_operand_p
 next_readonly_imm_use (imm_use_iterator *imm)
 {
diff --git a/gcc/tree-ssa-operands.c b/gcc/tree-ssa-operands.c
index a010b3040ef..7364052e10f 100644
--- a/gcc/tree-ssa-operands.c
+++ b/gcc/tree-ssa-operands.c
@@ -1198,8 +1198,8 @@ swap_tree_operands (tree *exp0, tree *exp1)
 	    use1 = x;
 	    break;
 	  }
-      /* If both uses don't have operand entries, there isnt much we can do
-         at this point. Presumably we dont need to worry about it.  */
+      /* If both uses don't have operand entries, there isn't much we can do
+         at this point.  Presumably we dont need to worry about it.  */
       if (use0 != NUM_USES (uses) && use1 != NUM_USES (uses))
         {
 	  tree *tmp = USE_OP_PTR (uses, use1)->use;