opts.h (cl_option): Add comments to fields.

	* opts.h (cl_option): Add comments to fields.  Add bit-fields for
	various flags.
	(CL_SEPARATE_NARGS_SHIFT, CL_SEPARATE_NARGS_MASK,
	CL_SEPARATE_ALIAS, CL_NO_DRIVER_ARG, CL_REJECT_DRIVER, CL_SAVE,
	CL_DISABLED, CL_REPOR, CL_REJECT_NEGATIVE, CL_MISSING_OK,
	CL_UINTEGER, CL_NEGATIVE_ALIAS): Remove.
	(CL_JOINED, CL_SEPARATE, CL_UNDOCUMENTED): Update bit positions.
	* opt-functions.awk (flag_init, switch_bit_fields): New.
	(switch_flags): Don't handle flags moved to bit-fields.  Don't
	generate CL_MISSING_OK or CL_SAVE.
	* optc-gen.awk: Update to generate bit-field output as well as
	flags field.
	* gcc.c (driver_wrong_lang_callback): Use cl_reject_driver
	bit-field instead of CL_REJECT_DRIVER flag.
	* opts-common.c (generate_canonical_option,
	decode_cmdline_option): Use bit-fields instead of CL_* flags.
	* opts.c (maybe_default_option): Use cl_reject_negative bit-field
	instead of CL_REJECT_NEGATIVE flag.
	* toplev.c (print_switch_values): Use cl_report bit-field instead
	of CL_REPORT flag.

From-SVN: r171804

1 files changed, 36 insertions, 15 deletions

diff --git a/gcc/opt-functions.awk b/gcc/opt-functions.awk
index f5f5cd4..19bdf3a 100644
--- a/gcc/opt-functions.awk
+++ b/gcc/opt-functions.awk
@@ -42,6 +42,16 @@ function test_flag(regex, flags, string)
 	return ""
 }
 
+# Return a field initializer, with trailing comma, for a field that is
+# 1 if FLAGS contains a flag matching REGEX and 0 otherwise.
+function flag_init(regex, flags)
+{
+	if (flag_set_p(regex, flags))
+		return "1 /* " regex " */, "
+	else
+		return "0, "
+}
+
 # If FLAGS contains a "NAME(...argument...)" flag, return the value
 # of the argument.  Return the empty string otherwise.
 function opt_args(name, flags)
@@ -87,27 +97,38 @@ function switch_flags (flags)
 	  test_flag("Common", flags, " | CL_COMMON") \
 	  test_flag("Target", flags, " | CL_TARGET") \
 	  test_flag("Driver", flags, " | CL_DRIVER") \
-	  test_flag("RejectDriver", flags, " | CL_REJECT_DRIVER") \
-	  test_flag("NoDriverArg", flags, " | CL_NO_DRIVER_ARG") \
-	  test_flag("SeparateAlias", flags, " | CL_SEPARATE_ALIAS") \
-	  test_flag("NegativeAlias", flags, " | CL_NEGATIVE_ALIAS") \
-	  test_flag("Save", flags, " | CL_SAVE") \
 	  test_flag("Joined", flags, " | CL_JOINED") \
-	  test_flag("JoinedOrMissing", flags, " | CL_JOINED | CL_MISSING_OK") \
+	  test_flag("JoinedOrMissing", flags, " | CL_JOINED") \
 	  test_flag("Separate", flags, " | CL_SEPARATE") \
-	  test_flag("RejectNegative", flags, " | CL_REJECT_NEGATIVE") \
-	  test_flag("UInteger", flags, " | CL_UINTEGER") \
 	  test_flag("Undocumented", flags,  " | CL_UNDOCUMENTED") \
 	  test_flag("Warning", flags,  " | CL_WARNING") \
-	  test_flag("Optimization", flags,  " | CL_OPTIMIZATION") \
-	  test_flag("Report", flags, " | CL_REPORT")
+	  test_flag("Optimization", flags,  " | CL_OPTIMIZATION")
+	sub( "^0 \\| ", "", result )
+	return result
+}
+
+# Return bit-field initializers for option flags FLAGS.
+function switch_bit_fields (flags)
+{
+	result = ""
 	sep_args = opt_args("Args", flags)
-	if (sep_args != "") {
+	if (sep_args == "")
+		sep_args = 0
+	else
 		sep_args--
-		result = result " | (" sep_args \
-		    " << CL_SEPARATE_NARGS_SHIFT)"
-	}
-	sub( "^0 \\| ", "", result )
+	result = result sep_args ", "
+
+	result = result \
+	  flag_init("SeparateAlias", flags) \
+	  flag_init("NegativeAlias", flags) \
+	  flag_init("NoDriverArg", flags) \
+	  flag_init("RejectDriver", flags) \
+	  flag_init("RejectNegative", flags) \
+	  flag_init("JoinedOrMissing", flags) \
+	  flag_init("UInteger", flags) \
+	  flag_init("Report", flags)
+
+	sub(", $", "", result)
 	return result
 }