* c-decl.c, c-ppoutput.c, combine.c, cppfiles.c, dwarf2out.c,

	expr.c, fold-const.c, gcc.c, haifa-sched.c, loop-iv.c,
	params.def, read-rtl.c, rtl.c, rtlanal.c, toplev.c: Fix
	comment typos and formatting.  Follow spelling conventions.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@78555 138bc75d-0d04-0410-961f-82ee72b054a4

16 files changed, 29 insertions, 22 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index cb4c1fc188b..a0677fe4874 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2004-02-27  Kazu Hirata  <kazu@cs.umass.edu>
+
+	* c-decl.c, c-ppoutput.c, combine.c, cppfiles.c, dwarf2out.c,
+	expr.c, fold-const.c, gcc.c, haifa-sched.c, loop-iv.c,
+	params.def, read-rtl.c, rtl.c, rtlanal.c, toplev.c: Fix
+	comment typos and formatting.  Follow spelling conventions.
+
 2004-02-26  Aldy Hernandez  <aldyh@redhat.com>
 
 	* config/rs6000/rs6000.md: Add fixuns_truncsfsi2 and
diff --git a/gcc/c-decl.c b/gcc/c-decl.c
index 01f1761864b..1145363a643 100644
--- a/gcc/c-decl.c
+++ b/gcc/c-decl.c
@@ -611,7 +611,7 @@ poplevel (int keep, int dummy ATTRIBUTE_UNUSED, int functionbody)
 	      && DECL_NAME (p)
 	      && !DECL_ARTIFICIAL (p))
 	    warning ("%Junused variable `%D'", p, p);
-	  /* fall through */
+	  /* Fall through.  */
 
 	default:
 	normal:
@@ -1016,7 +1016,7 @@ diagnose_mismatched_decls (tree newdecl, tree olddecl,
   if (TREE_CODE (newdecl) == TYPE_DECL)
     {
       if (DECL_IN_SYSTEM_HEADER (newdecl) || DECL_IN_SYSTEM_HEADER (olddecl))
-	return true;  /* allow OLDDECL to continue in use */
+	return true;  /* Allow OLDDECL to continue in use.  */
       
       error ("%Jredefinition of typedef '%D'", newdecl, newdecl);
       locate_old_decl (olddecl, error);
diff --git a/gcc/c-ppoutput.c b/gcc/c-ppoutput.c
index 24be879acb3..4d83b5d01e2 100644
--- a/gcc/c-ppoutput.c
+++ b/gcc/c-ppoutput.c
@@ -36,7 +36,7 @@ static struct
   const cpp_token *source;	/* Source token for spacing.  */
   int src_line;			/* Line number currently being written.  */
   unsigned char printed;	/* Nonzero if something output at line.  */
-  bool first_time;		/* pp_file_change hasn't been called yet. */
+  bool first_time;		/* pp_file_change hasn't been called yet.  */
 } print;
 
 /* General output routines.  */
diff --git a/gcc/combine.c b/gcc/combine.c
index 9e541ad61f2..b7cad3fcbad 100644
--- a/gcc/combine.c
+++ b/gcc/combine.c
@@ -1452,7 +1452,7 @@ try_combine (rtx i3, rtx i2, rtx i1, int *new_direct_jump_p)
   int added_sets_1, added_sets_2;
   /* Total number of SETs to put into I3.  */
   int total_sets;
-  /* Nonzero is I2's body now appears in I3.  */
+  /* Nonzero if I2's body now appears in I3.  */
   int i2_is_used;
   /* INSN_CODEs for new I3, new I2, and user of condition code.  */
   int insn_code_number, i2_code_number = 0, other_code_number = 0;
diff --git a/gcc/cppfiles.c b/gcc/cppfiles.c
index 3a42e78639b..b40521b5ed6 100644
--- a/gcc/cppfiles.c
+++ b/gcc/cppfiles.c
@@ -109,7 +109,7 @@ struct _cpp_file
   /* If BUFFER above contains the true contents of the file.  */
   bool buffer_valid;
 
-  /* File is a PCH (on return from find_include_file). */
+  /* File is a PCH (on return from find_include_file).  */
   bool pch;
 };
 
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index 0bfe62c4efc..841827ba597 100644
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -9873,7 +9873,7 @@ add_bound_info (dw_die_ref subrange_die, enum dwarf_attribute bound_attr, tree b
 	  || (bound_attr == DW_AT_lower_bound
 	      && (((is_c_family () || is_java ()) &&  integer_zerop (bound))
 		  || (is_fortran () && integer_onep (bound)))))
-	/* use the default */
+	/* Use the default.  */
 	;
       else
 	add_AT_unsigned (subrange_die, bound_attr, tree_low_cst (bound, 0));
@@ -12882,7 +12882,7 @@ dwarf2out_source_line (unsigned int line, const char *filename)
 	  (*targetm.asm_out.internal_label) (asm_out_file, SEPARATE_LINE_CODE_LABEL,
 				     separate_line_info_table_in_use);
 
-	  /* expand the line info table if necessary */
+	  /* Expand the line info table if necessary.  */
 	  if (separate_line_info_table_in_use
 	      == separate_line_info_table_allocated)
 	    {
diff --git a/gcc/expr.c b/gcc/expr.c
index 907d30c4006..bf1460649f3 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -645,7 +645,7 @@ convert_move (rtx to, rtx from, int unsignedp)
       if (to_mode == full_mode)
 	return;
 
-      /* else proceed to integer conversions below */
+      /* else proceed to integer conversions below.  */
       from_mode = full_mode;
     }
 
diff --git a/gcc/fold-const.c b/gcc/fold-const.c
index 2b2e874062b..956478af001 100644
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -718,7 +718,7 @@ div_and_round_double (enum tree_code code, int uns,
   if (quo_neg)
     neg_double (*lquo, *hquo, lquo, hquo);
 
-  /* compute trial remainder:  rem = num - (quo * den)  */
+  /* Compute trial remainder:  rem = num - (quo * den)  */
   mul_double (*lquo, *hquo, lden_orig, hden_orig, lrem, hrem);
   neg_double (*lrem, *hrem, lrem, hrem);
   add_double (lnum_orig, hnum_orig, *lrem, *hrem, lrem, hrem);
diff --git a/gcc/gcc.c b/gcc/gcc.c
index e4cce369a9c..78e82c49bd9 100644
--- a/gcc/gcc.c
+++ b/gcc/gcc.c
@@ -6493,7 +6493,7 @@ lookup_compiler (const char *name, size_t length, const char *language)
     }
 
 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
-  /* look again, but case-insensitively this time.  */
+  /* Look again, but case-insensitively this time.  */
   if (cp < compilers)
     for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
       {
diff --git a/gcc/haifa-sched.c b/gcc/haifa-sched.c
index 496ea2caa2a..34e8606ce7c 100644
--- a/gcc/haifa-sched.c
+++ b/gcc/haifa-sched.c
@@ -1952,7 +1952,7 @@ early_queue_to_ready (state_t state, struct ready_list *ready)
 
 		      insns_removed++;
 		      if (insns_removed == flag_sched_stalled_insns)
-			/* remove only one insn from Q at a time */
+			/* Remove only one insn from Q at a time.  */
 			return insns_removed;
 		    }
 		}
diff --git a/gcc/loop-iv.c b/gcc/loop-iv.c
index 277c1eaa09a..9c170dec2ec 100644
--- a/gcc/loop-iv.c
+++ b/gcc/loop-iv.c
@@ -34,7 +34,7 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
    interesting reg, it is now easy to find a reaching definition (there may be
    only one).
 
-   Induction variable is then simply analysed by walking the use-def
+   Induction variable is then simply analyzed by walking the use-def
    chains.
    
    Usage:
@@ -501,7 +501,7 @@ iv_add (struct rtx_iv *iv0, struct rtx_iv *iv1, enum rtx_code op)
   enum machine_mode mode;
   rtx arg;
 
-  /* Extend the constant to extend_mode of the other operand if neccesary.  */
+  /* Extend the constant to extend_mode of the other operand if necessary.  */
   if (iv0->extend == NIL
       && iv0->mode == iv0->extend_mode
       && iv0->step == const0_rtx
@@ -862,7 +862,7 @@ iv_analyze_biv (rtx def, struct rtx_iv *iv)
   return iv->base != NULL_RTX;
 }
 
-/* Analyses operand OP of INSN and stores the result to *IV.  */
+/* Analyzes operand OP of INSN and stores the result to *IV.  */
 
 static bool
 iv_analyze_op (rtx insn, rtx op, struct rtx_iv *iv)
@@ -927,7 +927,7 @@ iv_analyze_op (rtx insn, rtx op, struct rtx_iv *iv)
   return iv_analyze (def_insn, op, iv);
 }
 
-/* Analyses iv DEF defined in INSN and stores the result to *IV.  */
+/* Analyzes iv DEF defined in INSN and stores the result to *IV.  */
 
 bool
 iv_analyze (rtx insn, rtx def, struct rtx_iv *iv)
@@ -1746,7 +1746,7 @@ shorten_into_mode (struct rtx_iv *iv, enum machine_mode mode,
 }
 
 /* Transforms IV0 and IV1 compared by COND so that they are both compared as
-   subregs of the same mode if possible (sometimes it is neccesary to add
+   subregs of the same mode if possible (sometimes it is necessary to add
    some assumptions to DESC).  */
 
 static bool
@@ -2082,7 +2082,7 @@ iv_number_of_iterations (struct loop *loop, rtx insn, rtx condition,
 		 obviously if the test for overflow during that transformation
 		 passed, we cannot overflow here.  Most importantly any
 		 loop with sharp end condition and step 1 falls into this
-		 cathegory, so handling this case specially is definitely
+		 category, so handling this case specially is definitely
 		 worth the troubles.  */
 	      may_xform = const_true_rtx;
 	    }
diff --git a/gcc/params.def b/gcc/params.def
index 3d5a6b70a2a..e00e22e3b0d 100644
--- a/gcc/params.def
+++ b/gcc/params.def
@@ -137,7 +137,7 @@ DEFPARAM(PARAM_MAX_GCSE_PASSES,
    
    This limit should be at most half of the peeling limits:  loop unroller
    decides to not unroll loops that iterate fewer than 2*number of allowed
-   unrollings and thus we would have loops that are neither peeled or unrooled
+   unrollings and thus we would have loops that are neither peeled or unrolled
    otherwise.  */
 DEFPARAM(PARAM_MAX_UNROLLED_INSNS,
 	 "max-unrolled-insns",
diff --git a/gcc/read-rtl.c b/gcc/read-rtl.c
index 629390997c2..377eb7e051e 100644
--- a/gcc/read-rtl.c
+++ b/gcc/read-rtl.c
@@ -630,7 +630,7 @@ again:
 	  if (c != '[')
 	    fatal_expected_char (infile, '[', c);
 
-	  /* add expressions to a list, while keeping a count */
+	  /* Add expressions to a list, while keeping a count.  */
 	  obstack_init (&vector_stack);
 	  while ((c = read_skip_spaces (infile)) && c != ']')
 	    {
diff --git a/gcc/rtl.c b/gcc/rtl.c
index d0081587198..6449630b92f 100644
--- a/gcc/rtl.c
+++ b/gcc/rtl.c
@@ -156,7 +156,7 @@ rtvec_alloc (int n)
   rtvec rt;
 
   rt = ggc_alloc_rtvec (n);
-  /* clear out the vector */
+  /* Clear out the vector.  */
   memset (&rt->elem[0], 0, n * sizeof (rtx));
 
   PUT_NUM_ELEM (rt, n);
diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c
index 0ec52dad726..064e4bc6af4 100644
--- a/gcc/rtlanal.c
+++ b/gcc/rtlanal.c
@@ -3325,7 +3325,7 @@ subreg_offset_representable_p (unsigned int xregno, enum machine_mode xmode,
   nregs_xmode = hard_regno_nregs[xregno][xmode];
   nregs_ymode = hard_regno_nregs[xregno][ymode];
 
-  /* paradoxical subregs are always valid.  */
+  /* Paradoxical subregs are always valid.  */
   if (offset == 0
       && nregs_ymode > nregs_xmode
       && (GET_MODE_SIZE (ymode) > UNITS_PER_WORD
diff --git a/gcc/toplev.c b/gcc/toplev.c
index d99c3bfccdd..10a3b12ac40 100644
--- a/gcc/toplev.c
+++ b/gcc/toplev.c
@@ -696,7 +696,7 @@ int flag_gcse_lm = 1;
 
 int flag_gcse_sm = 1;
 
-/* Nonzero if we want to perfrom redundant load after store elimination
+/* Nonzero if we want to perform redundant load after store elimination
    in gcse.  */
 
 int flag_gcse_las = 1;