diff options
Diffstat (limited to 'gcc/opth-gen.awk')
| -rw-r--r-- | gcc/opth-gen.awk | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/gcc/opth-gen.awk b/gcc/opth-gen.awk index 9aa18a12ad9..a67e5b77a8b 100644 --- a/gcc/opth-gen.awk +++ b/gcc/opth-gen.awk @@ -26,6 +26,7 @@ BEGIN { n_opts = 0 n_langs = 0 + n_target_save = 0 n_extra_masks = 0 quote = "\042" comma = "," @@ -38,6 +39,11 @@ BEGIN { langs[n_langs] = $2 n_langs++; } + else if ($1 == "TargetSave") { + # Make sure the declarations are put in source order + target_save_decl[n_target_save] = $2 + n_target_save++ + } else { name = opt_args("Mask", $1) if (name == "") { @@ -64,15 +70,180 @@ print "extern int target_flags;" print "extern int target_flags_explicit;" print "" +have_save = 0; + for (i = 0; i < n_opts; i++) { + if (flag_set_p("Save", flags[i])) + have_save = 1; + name = var_name(flags[i]); if (name == "") continue; + if (name in var_seen) + continue; + + var_seen[name] = 1; print "extern " var_type(flags[i]) name ";" } print "" +# All of the optimization switches gathered together so they can be saved and restored. +# This will allow attribute((cold)) to turn on space optimization. + +# Change the type of normal switches from int to unsigned char to save space. +# Also, order the structure so that pointer fields occur first, then int +# fields, and then char fields to provide the best packing. + +print "#if !defined(GCC_DRIVER) && !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS)" +print "" +print "/* Structure to save/restore optimization and target specific options. */"; +print "struct cl_optimization GTY(())"; +print "{"; + +n_opt_char = 2; +n_opt_short = 0; +n_opt_int = 0; +n_opt_other = 0; +var_opt_char[0] = "unsigned char optimize"; +var_opt_char[1] = "unsigned char optimize_size"; + +for (i = 0; i < n_opts; i++) { + if (flag_set_p("Optimization", flags[i])) { + name = var_name(flags[i]) + if(name == "") + continue; + + if(name in var_opt_seen) + continue; + + var_opt_seen[name]++; + otype = var_type_struct(flags[i]); + if (otype ~ "^((un)?signed +)?int *$") + var_opt_int[n_opt_int++] = otype name; + + else if (otype ~ "^((un)?signed +)?short *$") + var_opt_short[n_opt_short++] = otype name; + + else if (otype ~ "^((un)?signed +)?char *$") + var_opt_char[n_opt_char++] = otype name; + + else + var_opt_other[n_opt_other++] = otype name; + } +} + +for (i = 0; i < n_opt_other; i++) { + print " " var_opt_other[i] ";"; +} + +for (i = 0; i < n_opt_int; i++) { + print " " var_opt_int[i] ";"; +} + +for (i = 0; i < n_opt_short; i++) { + print " " var_opt_short[i] ";"; +} + +for (i = 0; i < n_opt_char; i++) { + print " " var_opt_char[i] ";"; +} + +print "};"; +print ""; + +# Target and optimization save/restore/print functions. +print "/* Structure to save/restore selected target specific options. */"; +print "struct cl_target_option GTY(())"; +print "{"; + +n_target_char = 0; +n_target_short = 0; +n_target_int = 0; +n_target_other = 0; + +for (i = 0; i < n_target_save; i++) { + if (target_save_decl[i] ~ "^((un)?signed +)?int +[_a-zA-Z0-9]+$") + var_target_int[n_target_int++] = target_save_decl[i]; + + else if (target_save_decl[i] ~ "^((un)?signed +)?short +[_a-zA-Z0-9]+$") + var_target_short[n_target_short++] = target_save_decl[i]; + + else if (target_save_decl[i] ~ "^((un)?signed +)?char +[_a-zA-Z0-9]+$") + var_target_char[n_target_char++] = target_save_decl[i]; + + else + var_target_other[n_target_other++] = target_save_decl[i]; +} + +if (have_save) { + for (i = 0; i < n_opts; i++) { + if (flag_set_p("Save", flags[i])) { + name = var_name(flags[i]) + if(name == "") + name = "target_flags"; + + if(name in var_save_seen) + continue; + + var_save_seen[name]++; + otype = var_type_struct(flags[i]) + if (otype ~ "^((un)?signed +)?int *$") + var_target_int[n_target_int++] = otype name; + + else if (otype ~ "^((un)?signed +)?short *$") + var_target_short[n_target_short++] = otype name; + + else if (otype ~ "^((un)?signed +)?char *$") + var_target_char[n_target_char++] = otype name; + + else + var_target_other[n_target_other++] = otype name; + } + } +} else { + var_target_int[n_target_int++] = "int target_flags"; +} + +for (i = 0; i < n_target_other; i++) { + print " " var_target_other[i] ";"; +} + +for (i = 0; i < n_target_int; i++) { + print " " var_target_int[i] ";"; +} + +for (i = 0; i < n_target_short; i++) { + print " " var_target_short[i] ";"; +} + +for (i = 0; i < n_target_char; i++) { + print " " var_target_char[i] ";"; +} + +print "};"; +print ""; +print ""; +print "/* Save optimization variables into a structure. */" +print "extern void cl_optimization_save (struct cl_optimization *);"; +print ""; +print "/* Restore optimization variables from a structure. */"; +print "extern void cl_optimization_restore (struct cl_optimization *);"; +print ""; +print "/* Print optimization variables from a structure. */"; +print "extern void cl_optimization_print (FILE *, int, struct cl_optimization *);"; +print ""; +print "/* Save selected option variables into a structure. */" +print "extern void cl_target_option_save (struct cl_target_option *);"; +print ""; +print "/* Restore selected option variables from a structure. */" +print "extern void cl_target_option_restore (struct cl_target_option *);"; +print ""; +print "/* Print target option variables from a structure. */"; +print "extern void cl_target_option_print (FILE *, int, struct cl_target_option *);"; +print "#endif"; +print ""; + for (i = 0; i < n_opts; i++) { name = opt_args("Mask", flags[i]) vname = var_name(flags[i]) |