Various Thanksgiving weekend hacks: clean up hash table, reduce various

structure sizes, stabs string memory use cleanup, statistics dump.

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 837d32b04c693ae09625ccc53dcb9951d5c8663e..1070a2578c3e8fc8ef413e632cf06735f51980ed 100644 (file)
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,73 @@
+Tue Nov 28 10:42:36 1995  Ken Raeburn  <raeburn@cygnus.com>
+
+       * stabs.c (s_stab_generic): In 's' case, free string from
+       obstack.
+
+       * config/obj-elf.h (ELF_TARGET_SYMBOL_FIELDS): Remove unused field
+       sy_name_offset.
+       * config/obj-multi.h (ELF_TARGET_SYMBOL_FIELDS) [OBJ_MAYBE_ELF]:
+       Ditto.
+
+       * subsegs.h (segment_info_type): Make bitfields unsigned.
+
+       * expr.h (struct expressionS): Make X_op and X_unsigned bitfields,
+       and move them together.  On most systems this will reduce the
+       structure size by one word.
+       (operatorT): Define O_max.
+       * expr.c (expr_begin): Verify that X_op is wide enough to hold
+       O_max.
+
+       * read.c (pop_insert): Print error returned by hash table
+       insertion code.
+
+       * as.c (dump_statistics): Split out from main; dump some hash
+       table stats and target-specific stats.
+       (start_time): No longer automatic to main.
+       (main): Set file-level start_time and call dump_statistics at
+       exit.  Exit by calling xexit.
+       (show_usage): Make --statistics description less specific.
+       * subsegs.c (subsegs_print_statistics): New function.
+       * write.c (write_print_statistics): New function.
+       (n_fixups): New static variable.
+       (fix_new_internal): Increment it.
+       * read.c (read_print_statistics): New function.
+       * read.h (read_print_statistics): Declare.
+       * symbol.c (symbol_print_statistics): New function.
+       * symbol.h (symbol_print_statistics): Declare.
+       * hash.c (hash_print_statistics): New function.
+       * hash.h (hash_print_statistics): Declare.
+       * config/tc-i386.c (i386_print_statistics): New function.
+       * config/tc-i386.h (i386_print_statistics): Declare.
+       (tc_print_statistics): New macro.
+       * messages.c (as_fatal, as_assert, as_abort): Use xexit, not
+       exit.
+
+       * hash.c (DELETED): Rewrite to use a valid but unique address.
+       (START_POWER): Reduce to 10.
+       (enum stat_enum): New enumerator, replacing STAT_* index macros.
+       Add new values for counting strcmp calls.
+       (GROW_FACTOR): New macro.
+       (hash_grow): Use GROW_FACTOR.  Rewrite for quick returns instead
+       of nesting blocks.
+       (FULL_VALUE): New macro.  Use 1/4 of table size instead of 1/2.
+       (hash_new): Use FULL_VALUE.
+       (struct hash_control): Definition moved here.
+       (hash_code): Don't mask to low bits.
+       (hash_ask): Mask returned hash code here.  Check hash value before
+       calling strcmp; count strcmp calls.
+       * hash.h (struct hash_control): Declare, don't define, here.
+       (HASH_STATLENGTH): Deleted.
+       (struct hash_entry): Add field for hash code.
+       (hash_say, hash_apply): Don't declare.
+
+       * hash.c (destroy): Return void.
+       (applicatee): Ditto.
+       (main): Fix declarations.
+       (hash_apply): Return void.  Argument `function' returns void.  Put
+       inside "#ifdef TEST".
+       (hash_say): Define only if TEST is defined.
+       * hash.h (hash_apply, hash_say): Declarations deleted.
+
 Mon Nov 27 13:18:25 1995  Ian Lance Taylor  <ian@cygnus.com>
 
        * configure: Rebuild with autoconf 2.7.