Hi!

When working on the previous patch, I've noticed that all cl_optimization
fields appart from strings are streamed with bp_pack_value (..., 64); so we
waste quite a lot of space, given that many of the options are just booleans
or char options and there are 450-ish of them.

Fixed by streaming the number of bits the corresponding fields have.
While for char fields we have also range information, except for 3
it is either -128, 127 or 0, 255, so it didn't seem worth it to bother
with using range-ish packing.

Bootstrapped/regtested on x86_64-linux, i686-linux, armv7hl-linux-gnueabi,
aarch64-linux, powerpc64le-linux and lto bootstrapped on x86_64-linux, ok
for trunk?

2020-09-13  Jakub Jelinek  <ja...@redhat.com>

        * optc-save-gen.awk: In cl_optimization_stream_out and
        cl_optimization_stream_in, stream int, enum, short and char
        variables with corresponding HOST_BITS_PER_* rather than
        hardcoded 64.

--- gcc/optc-save-gen.awk.jj    2020-09-11 17:38:31.524230167 +0200
+++ gcc/optc-save-gen.awk       2020-09-11 22:12:59.948580827 +0200
@@ -1252,13 +1252,23 @@ print "cl_optimization_stream_out (struc
 print "                            struct bitpack_d *bp,";
 print "                            struct cl_optimization *ptr)";
 print "{";
-for (i = 0; i < n_opt_val; i++) {
-       name = var_opt_val[i]
-       otype = var_opt_val_type[i];
-       if (otype ~ "^const char \\**$")
-               print "  bp_pack_string (ob, bp, ptr->" name", true);";
-       else
-               print "  bp_pack_value (bp, ptr->" name", 64);";
+for (i = 0; i < n_opt_other; i++) {
+       print "  bp_pack_value (bp, ptr->x_" var_opt_other[i] ", 
HOST_BITS_PER_WIDE_INT);";
+}
+for (i = 0; i < n_opt_int; i++) {
+       print "  bp_pack_value (bp, static_cast<unsigned int>(ptr->x_" 
var_opt_int[i] "), HOST_BITS_PER_INT);";
+}
+for (i = 0; i < n_opt_enum; i++) {
+       print "  bp_pack_value (bp, static_cast<unsigned int>(ptr->x_" 
var_opt_enum[i] "), HOST_BITS_PER_INT);";
+}
+for (i = 0; i < n_opt_short; i++) {
+       print "  bp_pack_value (bp, static_cast<unsigned short>(ptr->x_" 
var_opt_short[i] "), HOST_BITS_PER_SHORT);";
+}
+for (i = 0; i < n_opt_char; i++) {
+       print "  bp_pack_value (bp, static_cast<unsigned char>(ptr->x_" 
var_opt_char[i] "), HOST_BITS_PER_CHAR);";
+}
+for (i = 0; i < n_opt_string; i++) {
+       print "  bp_pack_string (ob, bp, ptr->x_" var_opt_string[i] ", true);";
 }
 print "  for (size_t i = 0; i < sizeof (ptr->explicit_mask) / sizeof 
(ptr->explicit_mask[0]); i++)";
 print "    bp_pack_value (bp, ptr->explicit_mask[i], 64);";
@@ -1271,17 +1281,26 @@ print "cl_optimization_stream_in (struct
 print "                           struct bitpack_d *bp ATTRIBUTE_UNUSED,";
 print "                           struct cl_optimization *ptr 
ATTRIBUTE_UNUSED)";
 print "{";
-for (i = 0; i < n_opt_val; i++) {
-       name = var_opt_val[i]
-       otype = var_opt_val_type[i];
-       if (otype ~ "^const char \\**$")
-       {
-             print "  ptr->" name" = bp_unpack_string (data_in, bp);";
-             print "  if (ptr->" name")";
-             print "    ptr->" name" = xstrdup (ptr->" name");";
-       }
-       else
-             print "  ptr->" name" = (" var_opt_val_type[i] ") bp_unpack_value 
(bp, 64);";
+for (i = 0; i < n_opt_other; i++) {
+       print "  ptr->x_" var_opt_other[i] " = bp_unpack_value (bp, 
HOST_BITS_PER_WIDE_INT);";
+}
+for (i = 0; i < n_opt_int; i++) {
+       print "  ptr->x_" var_opt_int[i] " = bp_unpack_value (bp, 
HOST_BITS_PER_INT);";
+}
+for (i = 0; i < n_opt_enum; i++) {
+       print "  ptr->x_" var_opt_enum[i] " = static_cast<" 
var_opt_enum_type[i] ">(bp_unpack_value (bp, HOST_BITS_PER_INT));";
+}
+for (i = 0; i < n_opt_short; i++) {
+       print "  ptr->x_" var_opt_short[i] " = bp_unpack_value (bp, 
HOST_BITS_PER_SHORT);";
+}
+for (i = 0; i < n_opt_char; i++) {
+       print "  ptr->x_" var_opt_char[i] " = bp_unpack_value (bp, 
HOST_BITS_PER_CHAR);";
+}
+for (i = 0; i < n_opt_string; i++) {
+       name = var_opt_string[i];
+       print "  ptr->x_" name" = bp_unpack_string (data_in, bp);";
+       print "  if (ptr->x_" name")";
+       print "    ptr->x_" name" = xstrdup (ptr->x_" name");";
 }
 print "  for (size_t i = 0; i < sizeof (ptr->explicit_mask) / sizeof 
(ptr->explicit_mask[0]); i++)";
 print "    ptr->explicit_mask[i] = bp_unpack_value (bp, 64);";

        Jakub

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