Pessimize the code to simplify it: from now on, all the states

[bison.git] / ChangeLog

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+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+       Pessimize the code to simplify it: from now on, all the states
+       have a valid SHIFTS, which NSHIFTS is possibly 0.
+
+       * src/LR0.c (shifts_new): Be global and move to..
+       * src/state.c, src/state.h: here.
+       * src/conflicts, src/lalr.c, src/output.c, src/print.c,
+       * src/print_graph: Adjust.
+
+       
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+       * src/state.h (SHIFT_DISABLE, SHIFT_IS_DISABLED): New.
+       * src/conflicts.c: Use it.
+       Restore a few missing `if (!SHIFT_IS_DISABLED)' which were
+       incorrectly ``simplified''.
+
+       
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+       * src/conflicts.c (flush_shift, resolve_sr_conflict): De-obfuscate
+       using the good o' techniques: arrays not pointers, variable
+       locality, BITISSET, RESETBIT etc.
+
+       
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+       * src/state.h (SHIFT_SYMBOL): New.
+       * src/conflicts.c: Use it to deobfuscate.
+
+       
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+       * src/conflicts.c (count_sr_conflicts, count_rr_conflicts)
+       (print_reductions): De-obfuscate using the good o' techniques:
+       arrays not pointers, variable locality, BITISSET.
+
+       
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+       * src/conflicts.c (print_reductions): Arrays, not pointers.
+       Use BITISSET.
+
+       
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+       * src/conflicts.c (print_reductions): Pessimize, but clarify.
+
+       
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+       * src/conflicts.c (print_reductions): Improve variable locality.
+
+       
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+       * src/conflicts.c (print_reductions): Pessimize, but clarify.
+
+       
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+       * src/conflicts.c (print_reductions): Improve variable locality.
+
+       
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+       * src/state.h (SHIFT_IS_ERROR, SHIFT_IS_GOTO, SHIFT_IS_SHIFT): New.
+       * src/lalr.c: Use them.
+
+       
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+       * src/LR0.c (augment_automaton): Formatting changes.
+       Better variable locality.
+
+       
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+       * src/lalr.c (matrix_print): New.
+       (transpose): Use it.
+       Use arrays instead of pointers.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+       * src/lalr.c (maxrhs): Move to...
+       * src/gram.c, src/gram.h (ritem_longest_rhs): here.
+       * src/lalr.c (build_relations): Adjust.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+       * src/lalr.c (transpose): Free the memory allocated to the
+       argument, as it is replaced by the results by the unique caller.
+       (build_relations): Merely invoke transpose: it handles the memory
+       deallocation.
+       Improve variable locality.
+       Avoid variables used as mere abbreviations.
+       (compute_lookaheads): Use arrays instead of pointers.
+
 2001-12-05  Akim Demaille  <akim@epita.fr>
 
        * src/lalr.c (initialize_F): Improve variable locality.