alias.c: Fix comment typos.

* alias.c: Fix comment typos.
	* basic-block.h: Likewise.
	* c-common.c: Likewise.
	* c-common.h: Likewise.
	* c-decl.c: Likewise.
	* c-opts.c: Likewise.
	* c-pragma.c: Likewise.
	* c-pretty-print.h: Likewise.
	* cfg.c: Likewise.
	* cfganal.c: Likewise.
	* cfgbuild.c: Likewise.
	* cfgcleanup.c: Likewise.
	* cfglayout.c: Likewise.
	* cfgrtl.c: Likewise.
	* convert.c: Likewise.
	* cpphash.h: Likewise.
	* cpplex.c: Likewise.
	* cpplib.h: Likewise.
	* df.h: Likewise.
	* diagnostic.c: Likewise.
	* diagnostic.h: Likewise.
	* dwarf2.h: Likewise.

From-SVN: r61462

gcc/ChangeLog

@@ -1,3 +1,28 @@
+2003-01-17  Kazu Hirata  <kazu@cs.umass.edu>
+
+	* alias.c: Fix comment typos.
+	* basic-block.h: Likewise.
+	* c-common.c: Likewise.
+	* c-common.h: Likewise.
+	* c-decl.c: Likewise.
+	* c-opts.c: Likewise.
+	* c-pragma.c: Likewise.
+	* c-pretty-print.h: Likewise.
+	* cfg.c: Likewise.
+	* cfganal.c: Likewise.
+	* cfgbuild.c: Likewise.
+	* cfgcleanup.c: Likewise.
+	* cfglayout.c: Likewise.
+	* cfgrtl.c: Likewise.
+	* convert.c: Likewise.
+	* cpphash.h: Likewise.
+	* cpplex.c: Likewise.
+	* cpplib.h: Likewise.
+	* df.h: Likewise.
+	* diagnostic.c: Likewise.
+	* diagnostic.h: Likewise.
+	* dwarf2.h: Likewise.
+
 2003-01-17  Stan Shebs  <shebs@apple.com>
 
 	* config/darwin-protos.h: Forward-declare struct cpp_reader.

gcc/alias.c

@@ -64,7 +64,7 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 
    To see whether two alias sets can point to the same memory, we must
    see if either alias set is a subset of the other. We need not trace
-   past immediate descendents, however, since we propagate all
+   past immediate descendants, however, since we propagate all
    grandchildren up one level.
 
    Alias set zero is implicitly a superset of all other alias sets.
@@ -77,7 +77,7 @@ typedef struct alias_set_entry
   HOST_WIDE_INT alias_set;
 
   /* The children of the alias set.  These are not just the immediate
-     children, but, in fact, all descendents.  So, if we have:
+     children, but, in fact, all descendants.  So, if we have:
 
        struct T { struct S s; float f; }
 
@@ -1953,7 +1953,7 @@ adjust_offset_for_component_ref (x, offset)
   return GEN_INT (ioffset);
 }
 
-/* Return nonzero if we can deterimine the exprs corresponding to memrefs
+/* Return nonzero if we can determine the exprs corresponding to memrefs
    X and Y and they do not overlap.  */
 
 static int

gcc/basic-block.h

@@ -478,7 +478,7 @@ struct loop
 
      This does not include loop exits due to return instructions.
      This is because all bivs and givs are pseudos, and hence must be
-     dead after a return, so the presense of a return does not affect
+     dead after a return, so the presence of a return does not affect
      any of the optimizations that use this info.  It is simpler to
      just not include return instructions on this list.  */
   rtx exit_labels;

gcc/c-common.c

@@ -872,7 +872,7 @@ const struct attribute_spec c_common_attribute_table[] =
 };
 
 /* Give the specifications for the format attributes, used by C and all
-   descendents.  */
+   descendants.  */
 
 const struct attribute_spec c_common_format_attribute_table[] =
 {
@@ -2994,7 +2994,7 @@ c_common_get_alias_set (t)
   if (! TYPE_P (t))
     return -1;
 
-  /* The C standard guarantess that any object may be accessed via an
+  /* The C standard guarantees that any object may be accessed via an
      lvalue that has character type.  */
   if (t == char_type_node
       || t == signed_char_type_node
@@ -6355,7 +6355,7 @@ handle_nonnull_attribute (node, name, args, flags, no_add_attrs)
   unsigned HOST_WIDE_INT attr_arg_num;
 
   /* If no arguments are specified, all pointer arguments should be
-     non-null.  Veryify a full prototype is given so that the arguments
+     non-null.  Verify a full prototype is given so that the arguments
      will have the correct types when we actually check them later.  */
   if (! args)
     {

gcc/c-common.h

@@ -1010,7 +1010,7 @@ extern tree strip_array_types                   PARAMS ((tree));
 /* GOTO_STMT accessor. This gives access to the label associated with
    a goto statement.  */
 #define GOTO_DESTINATION(NODE)  TREE_OPERAND (GOTO_STMT_CHECK (NODE), 0)
-/* True for goto created artifically by the compiler.  */
+/* True for goto created artificially by the compiler.  */
 #define GOTO_FAKE_P(NODE)	(TREE_LANG_FLAG_0 (GOTO_STMT_CHECK (NODE)))
 
 /* COMPOUND_STMT accessor. This gives access to the TREE_LIST of

gcc/c-decl.c

@@ -2922,7 +2922,7 @@ start_decl (declarator, declspecs, initialized, attributes)
 
      Thread-local variables are never common, since there's no entrenched
      body of code to break, and it allows more efficient variable references
-     in the presense of dynamic linking.  */
+     in the presence of dynamic linking.  */
 
   if (TREE_CODE (decl) == VAR_DECL
       && !initialized
@@ -5024,7 +5024,7 @@ grokfield (filename, line, declarator, declspecs, width)
 	     again this is an anonymous struct.
 	   Otherwise this is an error.
 
-	 Oh what a horrid tangled web we weave.  I wonder if MS consiously
+	 Oh what a horrid tangled web we weave.  I wonder if MS consciously
 	 took this from Plan 9 or if it was an accident of implementation
 	 that took root before someone noticed the bug...  */
 

gcc/c-opts.c

@@ -314,7 +314,7 @@ static const struct cl_option cl_options[] =
 #undef COMMAND_LINE_OPTIONS
 
 /* Holds switches parsed by c_common_decode_option (), but whose
-   handling is deffered to c_common_post_options ().  */
+   handling is deferred to c_common_post_options ().  */
 static void defer_opt PARAMS ((enum opt_code, const char *));
 static struct deferred_opt
 {

gcc/c-pragma.c

@@ -424,7 +424,7 @@ handle_pragma_extern_prefix (dummy)
 }
 #endif
 
-/* Hook from the front ends to apply the results of one of the preceeding
+/* Hook from the front ends to apply the results of one of the preceding
    pragmas that rename variables.  */
 
 tree

gcc/c-pretty-print.h

@@ -42,7 +42,7 @@ struct c_pretty_print_info
   int *offset_list;
 
   /* These must be overridden by each of the C and C++ front-end to
-     reflect their understanding of syntatic productions when they differ.  */
+     reflect their understanding of syntactic productions when they differ.  */
   c_pretty_print_fn declaration;
   c_pretty_print_fn declaration_specifiers;
   c_pretty_print_fn type_specifier;

gcc/cfg.c

@@ -572,7 +572,7 @@ dump_flow_info (file)
 
       /* Check the consistency of profile information.  We can't do that
 	 in verify_flow_info, as the counts may get invalid for incompletely
-	 solved graphs, later elliminating of conditionals or roundoff errors.
+	 solved graphs, later eliminating of conditionals or roundoff errors.
 	 It is still practical to have them reported for debugging of simple
 	 testcases.  */
       sum = 0;

gcc/cfganal.c

@@ -234,7 +234,7 @@ set_edge_can_fallthru_flag ()
 	    e->flags |= EDGE_CAN_FALLTHRU;
 	}
 
-      /* If the BB ends with an invertable condjump all (2) edges are
+      /* If the BB ends with an invertible condjump all (2) edges are
 	 CAN_FALLTHRU edges.  */
       if (!bb->succ || !bb->succ->succ_next || bb->succ->succ_next->succ_next)
 	continue;

gcc/cfgbuild.c

@@ -148,7 +148,7 @@ count_basic_blocks (f)
 
   for (insn = f; insn; insn = NEXT_INSN (insn))
     {
-      /* Code labels and barriers causes curent basic block to be
+      /* Code labels and barriers causes current basic block to be
          terminated at previous real insn.  */
       if ((GET_CODE (insn) == CODE_LABEL || GET_CODE (insn) == BARRIER)
 	  && saw_insn)

gcc/cfgcleanup.c

@@ -263,7 +263,7 @@ mentions_nonequal_regs (x, data)
   return 0;
 }
 /* Attempt to prove that the basic block B will have no side effects and
-   allways continues in the same edge if reached via E.  Return the edge
+   always continues in the same edge if reached via E.  Return the edge
    if exist, NULL otherwise.  */
 
 static edge
@@ -323,7 +323,7 @@ thread_jump (mode, e, b)
     return NULL;
 
   /* Ensure that the comparison operators are equivalent.
-     ??? This is far too pesimistic.  We should allow swapped operands,
+     ??? This is far too pessimistic.  We should allow swapped operands,
      different CCmodes, or for example comparisons for interval, that
      dominate even when operands are not equivalent.  */
   if (!rtx_equal_p (XEXP (cond1, 0), XEXP (cond2, 0))
@@ -1146,7 +1146,7 @@ outgoing_edges_match (mode, bb1, bb2)
       /* Do not crossjump across loop boundaries.  This is a temporary
 	 workaround for the common scenario in which crossjumping results
 	 in killing the duplicated loop condition, making bb-reorder rotate
-	 the loop incorectly, leaving an extra unconditional jump inside
+	 the loop incorrectly, leaving an extra unconditional jump inside
 	 the loop.
 
 	 This check should go away once bb-reorder knows how to duplicate
@@ -1776,7 +1776,7 @@ cleanup_cfg (mode)
     {
       changed = true;
       /* We've possibly created trivially dead code.  Cleanup it right
-	 now to introduce more oppurtunities for try_optimize_cfg.  */
+	 now to introduce more opportunities for try_optimize_cfg.  */
       if (!(mode & (CLEANUP_NO_INSN_DEL
 		    | CLEANUP_UPDATE_LIFE | CLEANUP_PRE_SIBCALL))
 	  && !reload_completed)
@@ -1790,8 +1790,8 @@ cleanup_cfg (mode)
       delete_unreachable_blocks (), changed = true;
       if (mode & CLEANUP_UPDATE_LIFE)
 	{
-	  /* Cleaning up CFG introduces more oppurtunities for dead code
+	  /* Cleaning up CFG introduces more opportunities for dead code
-	     removal that in turn may introduce more oppurtunities for
+	     removal that in turn may introduce more opportunities for
 	     cleaning up the CFG.  */
 	  if (!update_life_info_in_dirty_blocks (UPDATE_LIFE_GLOBAL_RM_NOTES,
 						 PROP_DEATH_NOTES

gcc/cfglayout.c

@@ -717,7 +717,7 @@ cfg_layout_can_duplicate_bb_p (bb)
        return false;
 
   /* Do not attempt to duplicate tablejumps, as we need to unshare
-     the dispatch table.  This is dificult to do, as the instructions
+     the dispatch table.  This is difficult to do, as the instructions
      computing jump destination may be hoisted outside the basic block.  */
   if (GET_CODE (bb->end) == JUMP_INSN && JUMP_LABEL (bb->end)
       && (next = next_nonnote_insn (JUMP_LABEL (bb->end)))

gcc/cfgrtl.c

@@ -33,7 +33,7 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
      - Edge redirection with updating and optimizing of insn chain
 	 block_label, redirect_edge_and_branch,
 	 redirect_edge_and_branch_force, tidy_fallthru_edge, force_nonfallthru
-     - Edge splitting and commiting to edges
+     - Edge splitting and committing to edges
 	 split_edge, insert_insn_on_edge, commit_edge_insertions
      - Dumping and debugging
 	 print_rtl_with_bb, dump_bb, debug_bb, debug_bb_n

gcc/convert.c

@@ -155,7 +155,7 @@ convert_to_real (type, expr)
       if (TYPE_PRECISION (TREE_TYPE (arg0)) > TYPE_PRECISION (type))
 	newtype = TREE_TYPE (arg0);
 
-      /* Be curefull about integer to fp conversions.
+      /* Be careful about integer to fp conversions.
 	 These may overflow still.  */
       if (FLOAT_TYPE_P (TREE_TYPE (arg0))
 	  && TYPE_PRECISION (newtype) <= TYPE_PRECISION (itype)

gcc/cpphash.h

@@ -362,7 +362,7 @@ struct cpp_reader
      _cpp_maybe_push_include_file has yet to restore the line map.  */
   struct pending_option **next_include_file;
 
-  /* Multiple inlcude optimisation.  */
+  /* Multiple include optimisation.  */
   const cpp_hashnode *mi_cmacro;
   const cpp_hashnode *mi_ind_cmacro;
   bool mi_valid;

gcc/cpplex.c

@@ -607,7 +607,7 @@ unescaped_terminator_p (pfile, dest)
 {
   const unsigned char *start, *temp;
 
-  /* In #include-style directives, terminators are not escapeable.  */
+  /* In #include-style directives, terminators are not escapable.  */
   if (pfile->state.angled_headers)
     return 1;
 

gcc/cpplib.h

@@ -434,7 +434,7 @@ extern const char *progname;
    entries for all identifiers: either macros defined by #define
    commands (type NT_MACRO), assertions created with #assert
    (NT_ASSERTION), or neither of the above (NT_VOID).  Builtin macros
-   like __LINE__ are flagged NODE_BUILTIN.  Poisioned identifiers are
+   like __LINE__ are flagged NODE_BUILTIN.  Poisoned identifiers are
    flagged NODE_POISONED.  NODE_OPERATOR (C++ only) indicates an
    identifier that behaves like an operator such as "xor".
    NODE_DIAGNOSTIC is for speed in lex_token: it indicates a
@@ -544,7 +544,7 @@ extern int cpp_handle_option PARAMS ((cpp_reader *, int, char **));
    too.  If there was an error opening the file, it returns NULL.
 
    If you want cpplib to manage its own hashtable, pass in a NULL
-   pointer.  Otherise you should pass in an initialized hash table
+   pointer.  Otherwise you should pass in an initialized hash table
    that cpplib will share; this technique is used by the C front
    ends.  */
 extern const char *cpp_read_main_file PARAMS ((cpp_reader *, const char *,
@@ -654,7 +654,7 @@ extern cpp_num cpp_interpret_integer PARAMS ((cpp_reader *, const cpp_token *,
    others assumed clear, to fill out a cpp_num structure.  */
 cpp_num cpp_num_sign_extend PARAMS ((cpp_num, size_t));
 
-/* Diagnostic levels.  To get a dianostic without associating a
+/* Diagnostic levels.  To get a diagnostic without associating a
    position in the translation unit with it, use cpp_error_with_line
    with a line number of zero.  */
 

gcc/df.h

@@ -57,7 +57,7 @@ enum df_ref_flags
        and where the mode change of that subreg expression is invalid for
        this class.  Note, that this flag can also be set on df_refs
        representing the REG itself (i.e. one might not see the subreg
-       anyore).  Also note, that this flag is set also for hardreg refs.
+       anymore).  Also note, that this flag is set also for hardreg refs.
        I.e. you must check yourself if it's a pseudo.  */
     DF_REF_MODE_CHANGE = 2
   };
@@ -80,7 +80,7 @@ struct insn_info
 {
   struct df_link *defs;		/* Head of insn-def chain.  */
   struct df_link *uses;		/* Head of insn-use chain.  */
-  /* ???? The following luid field should be considerd private so that
+  /* ???? The following luid field should be considered private so that
      we can change it on the fly to accommodate new insns?  */
   int luid;			/* Logical UID.  */
 #if 0

gcc/diagnostic.c

@@ -644,7 +644,7 @@ build_message_string VPARAMS ((const char *msg, ...))
   return str;
 }
 
-/* Same as diagnsotic_build_prefix, but only the source FILE is given.  */
+/* Same as diagnostic_build_prefix, but only the source FILE is given.  */
 char *
 file_name_as_prefix (f)
      const char *f;
@@ -817,7 +817,7 @@ diagnostic_set_info (diagnostic, msgid, args, file, line, kind)
 {
   diagnostic->message.format_spec = msgid;
   diagnostic->message.args_ptr = args;
-  /* If the diagnostic message doesn't specify a loccation,
+  /* If the diagnostic message doesn't specify a location,
      use FILE and LINE.  */
   if (!text_specifies_location (&diagnostic->message, &diagnostic->location))
     {

gcc/diagnostic.h

@@ -33,7 +33,7 @@ typedef struct
   va_list *args_ptr;
 } text_info;
 
-/* Contants used to discreminate diagnostics.  */
+/* Contants used to discriminate diagnostics.  */
 typedef enum
 {
 #define DEFINE_DIAGNOSTIC_KIND(K, M) K,  
@@ -282,7 +282,7 @@ extern diagnostic_context *global_dc;
 
 #define report_diagnostic(D) diagnostic_report_diagnostic (global_dc, D)
 
-/* Dignostic related functions.  */
+/* Diagnostic related functions.  */
 extern void diagnostic_initialize	PARAMS ((diagnostic_context *));
 extern void diagnostic_report_current_module PARAMS ((diagnostic_context *));
 extern void diagnostic_report_current_function PARAMS ((diagnostic_context *));

gcc/dwarf2.h

@@ -4,7 +4,7 @@
    Free Software Foundation, Inc.
 
    Written by Gary Funck (gary@intrepid.com) The Ada Joint Program
-   Office (AJPO), Florida State Unviversity and Silicon Graphics Inc.
+   Office (AJPO), Florida State University and Silicon Graphics Inc.
    provided support for this effort -- June 21, 1995.
 
    Derived from the DWARF 1 implementation written by Ron Guilmette