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These changes improve the efficiency of generated code by recognizing more instances where operations are on little-endian binary COBOL variables and then avoiding calls to libgcobol. The generated code also reduces the number of intermediate variables created for that little-endian arithmetic. gcc/cobol/ChangeLog: * genapi.cc (tree_type_from_field_type): Move static code. (compare_binary_binary): Identify little-endian compares. (psa_FldLiteralN): Eliminate obsolete development code; make the initialized variables TREE_CONSTANT. (parser_symbol_add): Adjust for modified FldLiteralN. * genmath.cc (all_results_binary): Renamed. Modified for fastness. (all_results_integer): Likewise. (all_refers_integer): Likewise. (largest_binary_term): Likewise. (fast_add): Expand conditions. Use get_binary_value_tree. (fast_subtract): Likewise. (fast_multiply): Expand conditions. (fast_divide): Expand conditions. (parser_add): Avoid fast_add when error or not-error are specified. (parser_multiply): Likewise. (parser_divide): Likewise. (parser_subtract): Likewise. * genutil.cc (tree_type_from_field): Disable; flagged for removal. (get_binary_value): Use get_binary_value_tree. (get_binary_value_tree): Avoid intermediate variables when possible. (refer_is_clean): Formatting. (is_pure_integer): Refine test for little-endian binary. * genutil.h (get_binary_value_tree): New declaration. (is_pure_integer): New declaration. * symbols.cc (symbol_table_init): Explanatory ZEROS comment. libgcobol/ChangeLog: * gfileio.cc (__gg__file_reopen): Raise exception on failed OPEN * gmath.cc (__gg__fixed_phase2_assign_to_c): Let pointer arithmetic go negative. (__gg__subtractf2_fixed_phase1): Edit a comment.
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