cfgcleanup.c: Fix comment typos.

	* cfgcleanup.c: Fix comment typos.
	* emit-rtl.c: Likewise.
	* optabs.c: Likewise.
	* ra-build.c: Likewise.
	* rtlanal.c: Likewise.
	* tree.h: Likewise.

From-SVN: r70678

gcc/ChangeLog

 2003-08-22  Kazu Hirata  <kazu@cs.umass.edu>
 
+	* cfgcleanup.c: Fix comment typos.
+	* emit-rtl.c: Likewise.
+	* optabs.c: Likewise.
+	* ra-build.c: Likewise.
+	* rtlanal.c: Likewise.
+	* tree.h: Likewise.
+
+2003-08-22  Kazu Hirata  <kazu@cs.umass.edu>
+
 	* c-decl.c: Fix comment formatting.
 	* cfgrtl.c: Likewise.
 	* combine.c: Likewise.

gcc/cfgcleanup.c

@@ -227,7 +227,7 @@ mark_effect (rtx exp, regset nonequal)
     }
 }
 
-/* Return nonzero if X is an register set in regset DATA.
+/* Return nonzero if X is a register set in regset DATA.
    Called via for_each_rtx.  */
 static int
 mentions_nonequal_regs (rtx *x, void *data)

gcc/emit-rtl.c

@@ -858,7 +858,7 @@ gen_reg_rtx (enum machine_mode mode)
   return val;
 }
 
-/* Generate an register with same attributes as REG,
+/* Generate a register with same attributes as REG,
    but offsetted by OFFSET.  */
 
 rtx

gcc/optabs.c

@@ -3175,7 +3175,7 @@ emit_no_conflict_block (rtx insns, rtx target, rtx op0, rtx op1, rtx equiv)
 
       next = NEXT_INSN (insn);
 
-      /* Some ports (cris) create an libcall regions at their own.  We must
+      /* Some ports (cris) create a libcall regions at their own.  We must
 	 avoid any potential nesting of LIBCALLs.  */
       if ((note = find_reg_note (insn, REG_LIBCALL, NULL)) != NULL)
 	remove_note (insn, note);
@@ -3342,7 +3342,7 @@ emit_libcall_block (rtx insns, rtx target, rtx result, rtx equiv)
       rtx set = single_set (insn);
       rtx note;
 
-      /* Some ports (cris) create an libcall regions at their own.  We must
+      /* Some ports (cris) create a libcall regions at their own.  We must
 	 avoid any potential nesting of LIBCALLs.  */
       if ((note = find_reg_note (insn, REG_LIBCALL, NULL)) != NULL)
 	remove_note (insn, note);

gcc/ra-build.c

@@ -2429,7 +2429,7 @@ detect_spill_temps ()
 	continue;
 
       /* A web with only defs and no uses can't be spilled.  Nevertheless
-	 it must get a color, as it takes away an register from all webs
+	 it must get a color, as it takes away a register from all webs
 	 live at these defs.  So we make it a short web.  */
       if (web->num_uses == 0)
 	web->spill_temp = 3;

gcc/rtlanal.c

@@ -3311,7 +3311,7 @@ subreg_offset_representable_p (unsigned int xregno, enum machine_mode xmode,
 #endif
 
   /* The XMODE value can be seen as a vector of NREGS_XMODE
-     values.  The subreg must represent an lowpart of given field.
+     values.  The subreg must represent a lowpart of given field.
      Compute what field it is.  */
   offset -= subreg_lowpart_offset (ymode,
 				   mode_for_size (GET_MODE_BITSIZE (xmode)

gcc/tree.h

@@ -2582,7 +2582,7 @@ extern tree substitute_in_expr (tree, tree, tree);
 
 extern tree variable_size (tree);
 
-/* stabilize_reference (EXP) returns an reference equivalent to EXP
+/* stabilize_reference (EXP) returns a reference equivalent to EXP
    but it can be used multiple times
    and only evaluate the subexpressions once.  */