* basic-block.h: Fix comment formatting.

	* c-common.c: Likewise.
	* c-common.h: Likewise.
	* c-lex.c: Likewise.
	* c-pretty-print.c: Likewise.
	* cfglayout.c: Likewise.
	* cfgloop.c: Likewise.
	* defaults.h: Likewise.
	* et-forest.c: Likewise.
	* explow.c: Likewise.
	* function.h: Likewise.
	* gcov.c: Likewise.
	* genattrtab.c: Likewise.
	* gengtype.c: Likewise.
	* ifcvt.c: Likewise.
	* libgcc2.c: Likewise.
	* loop.c: Likewise.
	* profile.c: Likewise.
	* ra-build.c: Likewise.
	* real.c: Likewise.
	* rtl.h: Likewise.
	* tracer.c: Likewise.
	* tree-inline.c: Likewise.
	* varasm.c: Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@56952 138bc75d-0d04-0410-961f-82ee72b054a4

25 files changed, 78 insertions, 51 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index a736112a3da..97747a29f3d 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,30 @@
+2002-09-08  Kazu Hirata  <kazu@cs.umass.edu>
+
+	* basic-block.h: Fix comment formatting.
+	* c-common.c: Likewise.
+	* c-common.h: Likewise.
+	* c-lex.c: Likewise.
+	* c-pretty-print.c: Likewise.
+	* cfglayout.c: Likewise.
+	* cfgloop.c: Likewise.
+	* defaults.h: Likewise.
+	* et-forest.c: Likewise.
+	* explow.c: Likewise.
+	* function.h: Likewise.
+	* gcov.c: Likewise.
+	* genattrtab.c: Likewise.
+	* gengtype.c: Likewise.
+	* ifcvt.c: Likewise.
+	* libgcc2.c: Likewise.
+	* loop.c: Likewise.
+	* profile.c: Likewise.
+	* ra-build.c: Likewise.
+	* real.c: Likewise.
+	* rtl.h: Likewise.
+	* tracer.c: Likewise.
+	* tree-inline.c: Likewise.
+	* varasm.c: Likewise.
+
 2002-09-08  Jan Hubicka  <jh@suse.cz>
 
 	* emit-rtl.c (set_mem_attributes_minus_bitpos): Fix array_ref
diff --git a/gcc/basic-block.h b/gcc/basic-block.h
index 4972dd781b4..e0760ea0445 100644
--- a/gcc/basic-block.h
+++ b/gcc/basic-block.h
@@ -144,7 +144,7 @@ typedef struct edge_def {
 #define EDGE_FAKE		16	/* Not a real edge (profile.c) */
 #define EDGE_DFS_BACK		32	/* A backwards edge */
 #define EDGE_CAN_FALLTHRU	64	/* Candidate for straight line
-					   flow. */
+					   flow.  */
 
 #define EDGE_COMPLEX	(EDGE_ABNORMAL | EDGE_ABNORMAL_CALL | EDGE_EH)
 
diff --git a/gcc/c-common.c b/gcc/c-common.c
index 1a03d7c8b1c..2bc4592e32e 100644
--- a/gcc/c-common.c
+++ b/gcc/c-common.c
@@ -291,7 +291,7 @@ int warn_write_strings;
 
 int warn_redundant_decls;
 
-/* Warn about testing equality of floating point numbers. */
+/* Warn about testing equality of floating point numbers.  */
 
 int warn_float_equal;
 
@@ -1121,7 +1121,7 @@ fname_decl (rid, id)
 	 the current statement.  Later this tree will be moved to the
 	 beginning of the function and this line number will be wrong.
 	 To avoid this problem set the lineno to 0 here; that prevents
-	 it from appearing in the RTL. */
+	 it from appearing in the RTL.  */
       int saved_lineno = lineno;
       lineno = 0;
       
diff --git a/gcc/c-common.h b/gcc/c-common.h
index b49e2d1a64c..9c3e9994e06 100644
--- a/gcc/c-common.h
+++ b/gcc/c-common.h
@@ -465,7 +465,7 @@ extern int warn_write_strings;
 
 extern int warn_redundant_decls;
 
-/* Warn about testing equality of floating point numbers. */
+/* Warn about testing equality of floating point numbers.  */
 
 extern int warn_float_equal;
 
diff --git a/gcc/c-lex.c b/gcc/c-lex.c
index 1805ccbed03..e5f786176a3 100644
--- a/gcc/c-lex.c
+++ b/gcc/c-lex.c
@@ -1016,7 +1016,7 @@ lex_string (str, len, wide)
 #ifdef MULTIBYTE_CHARS
       else if (char_len > 1)
 	{
-	  /* We're dealing with a multibyte character. */
+	  /* We're dealing with a multibyte character.  */
 	  for ( ; char_len >0; --char_len)
 	    {
 	      *q++ = *(p - char_len);
diff --git a/gcc/c-pretty-print.c b/gcc/c-pretty-print.c
index 5d9151691cd..0961798d6d0 100644
--- a/gcc/c-pretty-print.c
+++ b/gcc/c-pretty-print.c
@@ -463,7 +463,7 @@ pp_c_integer_literal (ppi, i)
     }
 }
 
-/* Print out a REAL value. */
+/* Print out a REAL value.  */
 static inline void
 pp_c_real_literal (ppi, r)
      c_pretty_printer ppi;
@@ -556,7 +556,7 @@ pp_c_primary_expression (ppi, e)
       break;
 
     default:
-      /*  Make sure this call won't cause any infinite loop. */
+      /*  Make sure this call won't cause any infinite loop.  */
       pp_c_left_paren (ppi);
       pp_c_expression (ppi, e);
       pp_c_right_paren (ppi);
diff --git a/gcc/cfglayout.c b/gcc/cfglayout.c
index 70b7b17a7a1..1f3bc97ff28 100644
--- a/gcc/cfglayout.c
+++ b/gcc/cfglayout.c
@@ -342,7 +342,7 @@ scope_to_insns_finalize ()
 
       this_block = INSN_SCOPE (insn);
       /* For sequences compute scope resulting from merging all scopes
-         of instructions nested inside. */
+         of instructions nested inside.  */
       if (GET_CODE (PATTERN (insn)) == SEQUENCE)
 	{
 	  int i;
diff --git a/gcc/cfgloop.c b/gcc/cfgloop.c
index 09a1fb24a1e..42a403d1272 100644
--- a/gcc/cfgloop.c
+++ b/gcc/cfgloop.c
@@ -617,7 +617,7 @@ make_forwarder_block (bb, redirect_latch, redirect_nonlatch, except,
   HEADER_BLOCK (dummy) = 0;
   HEADER_BLOCK (bb) = 1;
 
-  /* Redirect back edges we want to keep. */
+  /* Redirect back edges we want to keep.  */
   for (e = dummy->pred; e; e = next_e)
     {
       next_e = e->pred_next;
diff --git a/gcc/defaults.h b/gcc/defaults.h
index 760241d1a24..e08ed8ec6c9 100644
--- a/gcc/defaults.h
+++ b/gcc/defaults.h
@@ -437,7 +437,7 @@ do { fputs (integer_asm_op (POINTER_SIZE / UNITS_PER_WORD, TRUE), FILE); \
 /* By default, the vtable entries are void pointers, the so the alignment
    is the same as pointer alignment.  The value of this macro specifies
    the alignment of the vtable entry in bits.  It should be defined only
-   when special alignment is necessary. */
+   when special alignment is necessary.  */
 #ifndef TARGET_VTABLE_ENTRY_ALIGN
 #define TARGET_VTABLE_ENTRY_ALIGN POINTER_SIZE
 #endif
@@ -576,7 +576,7 @@ You Lose!  You must define PREFERRED_DEBUGGING_TYPE!
 #endif
 
 /* Determine whether __cxa_atexit, rather than atexit, is used to
-   register C++ destructors for local statics and global objects. */
+   register C++ destructors for local statics and global objects.  */
 #ifndef DEFAULT_USE_CXA_ATEXIT
 #define DEFAULT_USE_CXA_ATEXIT 0
 #endif
diff --git a/gcc/et-forest.c b/gcc/et-forest.c
index 4e6216e5d32..84594d44365 100644
--- a/gcc/et-forest.c
+++ b/gcc/et-forest.c
@@ -664,7 +664,7 @@ et_forest_enumerate_sons (forest, node, array)
 
   /* Parent is the rightmost node of the left successor.
      Look for all occurences having no right succesor
-     and lookup the sons. */
+     and lookup the sons.  */
   while (occ != stop)
     {
       splay (occ);
diff --git a/gcc/explow.c b/gcc/explow.c
index 4cda3654105..3962a7af0a0 100644
--- a/gcc/explow.c
+++ b/gcc/explow.c
@@ -1087,7 +1087,7 @@ emit_stack_restore (save_level, sa, after)
       sa = validize_mem (sa);
       /* These clobbers prevent the scheduler from moving
 	 references to variable arrays below the code
-	 that deletes (pops) the arrays. */
+	 that deletes (pops) the arrays.  */
       emit_insn (gen_rtx_CLOBBER (VOIDmode,
 		    gen_rtx_MEM (BLKmode, 
 			gen_rtx_SCRATCH (VOIDmode))));
diff --git a/gcc/function.h b/gcc/function.h
index ff96b9c2bb2..dacd63c019e 100644
--- a/gcc/function.h
+++ b/gcc/function.h
@@ -441,7 +441,7 @@ struct function GTY(())
      calls (if any) are sibling calls.  Such functions do not have to
      have EH tables generated, as they cannot throw.  A call to such a
      function, however, should be treated as throwing if any of its callees
-     can throw. */
+     can throw.  */
   unsigned int all_throwers_are_sibcalls : 1;
  
   /* Nonzero if instrumentation calls for function entry and exit should be
diff --git a/gcc/gcov.c b/gcc/gcov.c
index a9658b26755..38a8293327e 100644
--- a/gcc/gcov.c
+++ b/gcc/gcov.c
@@ -159,12 +159,12 @@ struct bb_info_list
   struct bb_info_list *next;
 };
 
-/* Used to hold information about each line. */
+/* Used to hold information about each line.  */
 struct line_info
 {
   gcov_type count;	      /* execution count */
-  struct arcdata *branches;   /* list of branch probabilities for line. */
-  unsigned exists : 1;	      /* has code associated with it. */
+  struct arcdata *branches;   /* list of branch probabilities for line.  */
+  unsigned exists : 1;	      /* has code associated with it.  */
 };
   
 struct coverage
@@ -186,7 +186,7 @@ struct coverage
 
 static struct bb_info_list *bb_graph_list = 0;
 
-/* Modification time of data files. */
+/* Modification time of data files.  */
 
 static time_t bb_file_time;
 
@@ -477,7 +477,7 @@ open_files ()
 
       strcat (name, cptr);
     }
-  /* Remove the extension. */
+  /* Remove the extension.  */
   cptr = strrchr (name, '.');
   if (cptr)
     *cptr = 0;
@@ -1225,7 +1225,7 @@ function_summary (function, title)
    to each output name (except when the current source file is the
    input file, so you don't get a double concatenation). The two
    components are separated by '##'. Also '.' filename components are
-   removed and '..'  components are renamed to '^'. */
+   removed and '..'  components are renamed to '^'.  */
 
 static char *
 make_gcov_file_name (src_name)
@@ -1244,7 +1244,7 @@ make_gcov_file_name (src_name)
       strcat (name, "##");
     }
    
-  /* Generate the source filename part. */
+  /* Generate the source filename part.  */
   cptr = preserve_paths ? NULL : strrchr (src_name, '/');
   cptr = cptr ? cptr + 1 : src_name;
   strcat (name, cptr);
@@ -1303,12 +1303,12 @@ init_line_info (line_info, total, maxlineno)
   struct bb_info *block_ptr = NULL;	/* current block ptr */
   struct coverage function;
   struct coverage *func_ptr = NULL;
-  struct bb_info_list *current_graph = NULL; /* Graph for current function. */
-  int is_this_file = 0;	/* We're scanning a block from the desired file. */
+  struct bb_info_list *current_graph = NULL; /* Graph for current function.  */
+  int is_this_file = 0;	/* We're scanning a block from the desired file.  */
   char *ptr = bb_data;
   long count;
   long line_num;
-  struct line_info *line_ptr = 0; /* line info ptr. */
+  struct line_info *line_ptr = 0; /* line info ptr.  */
    
   memset (&function, 0, sizeof (function));
   if (output_function_summary)
@@ -1431,7 +1431,7 @@ init_line_info (line_info, total, maxlineno)
 	    total->lines_executed++;
 	}
 
-      /* Total and reverse the branch information. */
+      /* Total and reverse the branch information.  */
       for (a_ptr = line_ptr->branches, prev = NULL; a_ptr; a_ptr = next)
 	{
 	  next = a_ptr->next;
@@ -1457,9 +1457,9 @@ output_line_info (gcov_file, line_info, total, maxlineno)
 {
   FILE *source_file;
   long line_num;                    /* current line number */
-  const struct line_info *line_ptr; /* current line info ptr. */
-  char string[STRING_SIZE];         /* line buffer. */
-  char const *retval = "";	    /* status of source file reading. */
+  const struct line_info *line_ptr; /* current line info ptr.  */
+  char string[STRING_SIZE];         /* line buffer.  */
+  char const *retval = "";	    /* status of source file reading.  */
 
   fprintf (gcov_file, "%9s:%5d:Source:%s\n", "-", 0, total->name);
   fprintf (gcov_file, "%9s:%5d:Object:%s\n", "-", 0, bb_file_name);
@@ -1619,7 +1619,7 @@ output_data (s_ptr)
       free (gcov_file_name);
     }
 
-  /* Free data. */
+  /* Free data.  */
   for (line_num = 1; line_num != s_ptr->maxlineno; line_num++)
     {
       struct arcdata *branch, *next;
diff --git a/gcc/genattrtab.c b/gcc/genattrtab.c
index 5518adc126e..f5b2681308b 100644
--- a/gcc/genattrtab.c
+++ b/gcc/genattrtab.c
@@ -6246,7 +6246,7 @@ from the machine description file `md'.  */\n\n");
       /* Write out information about function units.  */
       write_function_unit_info ();
       /* Output code for pipeline hazards recognition based on DFA
-	 (deterministic finite state automata. */
+	 (deterministic finite state automata.  */
       write_automata ();
     }
 
diff --git a/gcc/gengtype.c b/gcc/gengtype.c
index e87cd5cc8d1..ac6e2fff1f6 100644
--- a/gcc/gengtype.c
+++ b/gcc/gengtype.c
@@ -1081,7 +1081,7 @@ write_gc_structure_fields (of, s, val, prev_val, opts, indent, line, bitmap,
 		break;
 	      }
 	  }
-	  /* Fall through... */
+	  /* Fall through...  */
 	case TYPE_STRUCT:
 	case TYPE_UNION:
 	  {
diff --git a/gcc/ifcvt.c b/gcc/ifcvt.c
index f92b7e8285b..3ae828b43f8 100644
--- a/gcc/ifcvt.c
+++ b/gcc/ifcvt.c
@@ -358,7 +358,7 @@ cond_exec_process_if_block (ce_info, do_multiple_p)
   rtx then_end;			/* last insn + 1 in THEN block */
   rtx else_start = NULL_RTX;	/* first insn in ELSE block or NULL */
   rtx else_end = NULL_RTX;	/* last insn + 1 in ELSE block */
-  int max;			/* max # of insns to convert. */
+  int max;			/* max # of insns to convert.  */
   int then_mod_ok;		/* whether conditional mods are ok in THEN */
   rtx true_expr;		/* test for else block insns */
   rtx false_expr;		/* test for then block insns */
diff --git a/gcc/libgcc2.c b/gcc/libgcc2.c
index ac2fb6a4281..8c10689f02c 100644
--- a/gcc/libgcc2.c
+++ b/gcc/libgcc2.c
@@ -1271,7 +1271,7 @@ struct bb
 #include <errno.h>
 #endif
 
-/* Chain of per-object file bb structures. */
+/* Chain of per-object file bb structures.  */
 static struct bb *bb_head;
 
 /* Dump the coverage counts. We merge with existing counts when
@@ -1295,7 +1295,7 @@ __bb_exit_func (void)
   s_flock.l_type = F_WRLCK;
   s_flock.l_whence = SEEK_SET;
   s_flock.l_start = 0;
-  s_flock.l_len = 0; /* Until EOF. */
+  s_flock.l_len = 0; /* Until EOF.  */
   s_flock.l_pid = getpid ();
 #endif
 
@@ -1432,7 +1432,7 @@ __bb_exit_func (void)
 	merged_max = object_max;
       merged_arcs += ptr->ncounts;
       
-      /* Write out the data. */
+      /* Write out the data.  */
       if (/* magic */
 	  __write_long (-123, da_file, 4)
 	  /* number of functions in object file.  */
diff --git a/gcc/loop.c b/gcc/loop.c
index 80bc6f8d67a..c601f5b84e6 100644
--- a/gcc/loop.c
+++ b/gcc/loop.c
@@ -4279,7 +4279,7 @@ for_each_insn_in_loop (loop, fncall)
   if (prev_nonnote_insn (loop->scan_start) != prev_nonnote_insn (loop->start))
     maybe_multiple = back_branch_in_range_p (loop, loop->scan_start);
 
-  /* Scan through loop and update NOT_EVERY_ITERATION and MAYBE_MULTIPLE. */
+  /* Scan through loop and update NOT_EVERY_ITERATION and MAYBE_MULTIPLE.  */
   for (p = next_insn_in_loop (loop, loop->scan_start);
        p != NULL_RTX;
        p = next_insn_in_loop (loop, p))
diff --git a/gcc/profile.c b/gcc/profile.c
index 528fc6fedd2..37e0c813a0b 100644
--- a/gcc/profile.c
+++ b/gcc/profile.c
@@ -91,18 +91,18 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 struct edge_info {
   unsigned int count_valid : 1;
   
-  /* Is on the spanning tree. */
+  /* Is on the spanning tree.  */
   unsigned int on_tree : 1;
   
   /* Pretend this edge does not exist (it is abnormal and we've
-     inserted a fake to compensate). */
+     inserted a fake to compensate).  */
   unsigned int ignore : 1;
 };
 
 struct bb_info {
   unsigned int count_valid : 1;
 
-  /* Number of successor and predecessor edges. */
+  /* Number of successor and predecessor edges.  */
   gcov_type succ_count;
   gcov_type pred_count;
 };
diff --git a/gcc/ra-build.c b/gcc/ra-build.c
index e1ad650bc7d..e320e514d90 100644
--- a/gcc/ra-build.c
+++ b/gcc/ra-build.c
@@ -275,7 +275,7 @@ copy_insn_p (insn, source, target)
   s_regno = (unsigned) REGNO (GET_CODE (s) == SUBREG ? SUBREG_REG (s) : s);
   d_regno = (unsigned) REGNO (GET_CODE (d) == SUBREG ? SUBREG_REG (d) : d);
 
-  /* Copies between hardregs are useless for us, as not coalesable anyway. */
+  /* Copies between hardregs are useless for us, as not coalesable anyway.  */
   if ((s_regno < FIRST_PSEUDO_REGISTER
        && d_regno < FIRST_PSEUDO_REGISTER)
       || s_regno >= max_normal_pseudo
@@ -563,7 +563,7 @@ remember_move (insn)
       SET_BIT (move_handled, INSN_UID (insn));
       if (copy_insn_p (insn, &s, &d))
 	{
-	  /* Some sanity test for the copy insn. */
+	  /* Some sanity test for the copy insn.  */
 	  struct df_link *slink = DF_INSN_USES (df, insn);
 	  struct df_link *link = DF_INSN_DEFS (df, insn);
 	  if (!link || !link->ref || !slink || !slink->ref)
@@ -844,7 +844,7 @@ live_out_1 (df, use, insn)
       else
 	{
 	  /* If this insn doesn't completely define the USE, increment also
-	     it's spanned deaths count (if this insn contains a death). */
+	     it's spanned deaths count (if this insn contains a death).  */
 	  if (uid >= death_insns_max_uid)
 	    abort ();
 	  if (TEST_BIT (insns_with_deaths, uid))
@@ -876,7 +876,7 @@ live_out (df, use, insn)
       && (use->undefined & ~visit_trace[uid].undefined) == 0)
     {
       union_web_parts (visit_trace[uid].wp, use->wp);
-      /* Don't search any further, as we already were here with this regno. */
+      /* Don't search any further, as we already were here with this regno.  */
       return 0;
     }
   else
@@ -2813,7 +2813,7 @@ moves_to_webs (df)
       if (m->source_web && m->target_web
 	  /* If the usable_regs don't intersect we can't coalesce the two
 	     webs anyway, as this is no simple copy insn (it might even
-	     need an intermediate stack temp to execute this "copy" insn). */
+	     need an intermediate stack temp to execute this "copy" insn).  */
 	  && hard_regs_intersect_p (&m->source_web->usable_regs,
 				    &m->target_web->usable_regs))
 	{
diff --git a/gcc/real.c b/gcc/real.c
index bc30a93795f..fdac05d54cf 100644
--- a/gcc/real.c
+++ b/gcc/real.c
@@ -129,14 +129,14 @@ unknown arithmetic type
 
 #define REAL_WORDS_BIG_ENDIAN FLOAT_WORDS_BIG_ENDIAN
 
-/* Make sure that the endianness is correct for IBM and DEC. */
+/* Make sure that the endianness is correct for IBM and DEC.  */
 #if defined(DEC)
 #undef LARGEST_EXPONENT_IS_NORMAL
 #define LARGEST_EXPONENT_IS_NORMAL(x) 1
 #undef REAL_WORDS_BIG_ENDIAN
 /* Strangely enough, DEC float most closely resembles big endian IEEE */
 #define REAL_WORDS_BIG_ENDIAN 1
-/* ... but the halfwords are reversed from IEEE big endian. */
+/* ... but the halfwords are reversed from IEEE big endian.  */
 #ifndef VAX_HALFWORD_ORDER
 #define VAX_HALFWORD_ORDER 1
 #endif
@@ -3942,7 +3942,7 @@ toieee (x, y, fmt)
     }
 
   /* Shift denormal double extended Intel format significand down
-     one bit. */
+     one bit.  */
   if (fmt->precision == 64 && x[E] == 0 && ! REAL_WORDS_BIG_ENDIAN)
     eshdn1 (x);
 
diff --git a/gcc/rtl.h b/gcc/rtl.h
index d493956dcf0..d27b9a2d41c 100644
--- a/gcc/rtl.h
+++ b/gcc/rtl.h
@@ -860,7 +860,7 @@ enum insn_note
      NOTE_EXPECTED_VALUE; stored as (eq (reg) (const_int)).  */
   NOTE_INSN_EXPECTED_VALUE,
 
-  /* Record a prediction.  Uses NOTE_PREDICTION. */
+  /* Record a prediction.  Uses NOTE_PREDICTION.  */
   NOTE_INSN_PREDICTION,
 
   NOTE_INSN_MAX
diff --git a/gcc/tracer.c b/gcc/tracer.c
index c0fbe21ad84..970b5f46b40 100644
--- a/gcc/tracer.c
+++ b/gcc/tracer.c
@@ -65,7 +65,7 @@ static int branch_ratio_cutoff;
 
 #define seen(bb) (RBI (bb)->visited || RBI (bb)->next)
 
-/* Return true if we should ignore the basic block for purposes of tracing. */
+/* Return true if we should ignore the basic block for purposes of tracing.  */
 static bool
 ignore_bb_p (bb)
      basic_block bb;
diff --git a/gcc/tree-inline.c b/gcc/tree-inline.c
index 98bbae29175..52f9544b201 100644
--- a/gcc/tree-inline.c
+++ b/gcc/tree-inline.c
@@ -1737,7 +1737,7 @@ remap_save_expr (tp, st_, fn, walk_subtrees)
 
 #ifdef INLINER_FOR_JAVA
 /* Add STMT to EXISTING if possible, otherwise create a new
-   COMPOUND_EXPR and add STMT to it. */
+   COMPOUND_EXPR and add STMT to it.  */
 
 static tree
 add_stmt_to_compound (existing, type, stmt)
diff --git a/gcc/varasm.c b/gcc/varasm.c
index 49df302c073..edd02622b09 100644
--- a/gcc/varasm.c
+++ b/gcc/varasm.c
@@ -2452,7 +2452,7 @@ compare_constant (t1, t2)
 	       l1 && l2;
 	       l1 = TREE_CHAIN (l1), l2 = TREE_CHAIN (l2))
 	    {
-	      /* Check that each value is the same... */
+	      /* Check that each value is the same...  */
 	      if (! compare_constant (TREE_VALUE (l1), TREE_VALUE (l2)))
 		return 0;
 	      /* ... and that they apply to the same fields!  */