PR rtl-optimization/21299

[pf3gnuchains/gcc-fork.git] / gcc / optc-gen.awk

diff --git a/gcc/optc-gen.awk b/gcc/optc-gen.awk
index 5476674..aa6bb11 100644 (file)
--- a/gcc/optc-gen.awk
+++ b/gcc/optc-gen.awk
@@ -14,7 +14,7 @@
 # 
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, write to the Free Software
-# Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+# Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 
 # This Awk script reads in the option records generated from 
 # opt-gather.awk, combines the flags of duplicat options and generates a
@@ -56,9 +56,15 @@ BEGIN {
 END {
 print "/* This file is auto-generated by opts.sh.  */"
 print ""
-print "#include <intl.h>"
-print "#include " quote header_name quote
+n_headers = split(header_name, headers, " ")
+for (i = 1; i <= n_headers; i++)
+       print "#include " quote headers[i] quote
 print "#include " quote "opts.h" quote
+print "#include " quote "intl.h" quote
+print ""
+print "#ifdef GCC_DRIVER"
+print "int target_flags;"
+print "#endif /* GCC_DRIVER */"
 print ""
 
 for (i = 0; i < n_opts; i++) {
@@ -66,21 +72,42 @@ for (i = 0; i < n_opts; i++) {
        if (name == "")
                continue;
 
-       if (flag_set_p("VarExists", flags[i]))
-               continue;
-
-       init = opt_args("Init", flags[i])
-       if (init != "")
-               init = " = " init;
-       else if (name in var_seen)
-               continue;
+       if (flag_set_p("VarExists", flags[i])) {
+               # Need it for the gcc driver.
+               if (name in var_seen)
+                       continue;
+               init = ""
+               gcc_driver = 1
+       }
+       else {
+               init = opt_args("Init", flags[i])
+               if (init != "")
+                       init = " = " init;
+               else if (name in var_seen)
+                       continue;
+               gcc_driver = 0
+       }
 
-       printf ("/* Set by -%s.\n   %s  */\nint %s%s;\n\n",
-           opts[i], help[i], name,init)
+       if (gcc_driver == 1)
+               print "#ifdef GCC_DRIVER"
+       print "/* Set by -" opts[i] "."
+       print "   " help[i] "  */"
+       print var_type(flags[i]) name init ";"
+       if (gcc_driver == 1)
+               print "#endif /* GCC_DRIVER */"
+       print ""
 
        var_seen[name] = 1;
 }
 
+print ""
+print "/* Local state variables.  */"
+for (i = 0; i < n_opts; i++) {
+       name = static_var(opts[i], flags[i]);
+       if (name != "")
+               print "static " var_type(flags[i]) name ";"
+}
+print ""
 
 print "const char * const lang_names[] =\n{"
 for (i = 0; i < n_langs; i++) {
@@ -95,8 +122,21 @@ print "const unsigned int cl_options_count = N_OPTS;\n"
 
 print "const struct cl_option cl_options[] =\n{"
 
-for (i = 0; i < n_opts; i++)
+j = 0
+for (i = 0; i < n_opts; i++) {
        back_chain[i] = "N_OPTS";
+       indices[opts[i]] = j;
+       # Combine the flags of identical switches.  Switches
+       # appear many times if they are handled by many front
+       # ends, for example.
+       while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
+               flags[i + 1] = flags[i] " " flags[i + 1];
+               i++;
+               back_chain[i] = "N_OPTS";
+               indices[opts[i]] = j;
+       }
+       j++;
+}
 
 for (i = 0; i < n_opts; i++) {
        # Combine the flags of identical switches.  Switches
@@ -135,10 +175,34 @@ for (i = 0; i < n_opts; i++) {
        else
                hlp = quote help[i] quote;
 
-       printf("  { %c-%s%c,\n    %s,\n    %s, %u, %s, %s, %s }%s\n",
-               quote, opts[i], quote, hlp, back_chain[i], len,
-               switch_flags(flags[i]),
-               var_ref(flags[i]), var_set(flags[i]), comma)
+       neg = opt_args("Negative", flags[i]);
+       if (neg != "")
+               idx = indices[neg]
+       else {
+               if (flag_set_p("RejectNegative", flags[i]))
+                       idx = -1;
+               else {
+                       if (opts[i] ~ "^[Wfm]")
+                               idx = indices[opts[i]];
+                       else
+                               idx = -1;
+               }
+       }
+       printf("  { %c-%s%c,\n    %s,\n    %s, %u, %d,\n",
+              quote, opts[i], quote, hlp, back_chain[i], len, idx)
+       condition = opt_args("Condition", flags[i])
+       cl_flags = switch_flags(flags[i])
+       if (condition != "")
+               printf("#if %s\n" \
+                      "    %s,\n" \
+                      "#else\n" \
+                      "    CL_DISABLED,\n" \
+                      "#endif\n",
+                      condition, cl_flags, cl_flags)
+       else
+               printf("    %s,\n", cl_flags)
+       printf("    %s, %s }%s\n", var_ref(opts[i], flags[i]),
+              var_set(flags[i]), comma)
 }
 
 print "};"