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Diffstat (limited to 'gcc/ChangeLog')
-rw-r--r-- | gcc/ChangeLog | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4644b96cff1..1a40c6f846e 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,41 @@ +2007-03-13 Zdenek Dvorak <dvorakz@suse.cz> + + PR tree-optimization/30730 + PR tree-optimization/26900 + * tree-ssa-loop-niter.c: Include gmp.h. + (bounds): New type. + (mpz_set_double_int, get_type_bounds, mpz_to_double_int, + split_to_var_and_offset, determine_value_range, + bound_difference_of_offsetted_base, refine_bounds_using_guard, + bound_difference, bounds_add, bounds_negate, + number_of_iterations_ne_max, dump_affine_iv): New functions. + (number_of_iterations_ne, number_of_iterations_lt_to_ne, + assert_loop_rolls_lt, assert_loop_rolls_le): Use bounds on the + difference of initial and final value of control iv to validate + results. + (number_of_iterations_cond): Add loop parameter. Determine bounds + on the difference of the extremes of the control iv. Add dumps. + (expand_simple_operations): Handle phi nodes. + (simplify_using_initial_conditions): Do not record used conditions. + (number_of_iterations_exit): Pass loop to number_of_iterations_cond. + Do not set additional_info. + (implies_nonnegative_p, implies_ge_p): Removed. + (derive_constant_upper_bound): Do not use parameter `additional'. + (record_estimate): Parameter `additional' removed. Parameter + `i_bound' added. Do not call derive_constant_upper_bound. + (record_nonwrapping_iv): Use derive_constant_upper_bound to + bound the number of iterations estimate. + (estimate_numbers_of_iterations_loop): Pass the estimate from + the number of iterations analysis to record_estimate. + * tree.h (multiple_of_p): Declare. + * tree-scalar-evolution.c (expression_expensive_p): Removed. + (scev_const_prop): Do not check expression_expensive_p. + * fold-const.c (multiple_of_p): Exported. + * double-int.c (double_int_mask): Exported. + * double-int.h (double_int_mask): Declare. + * tree-flow.h (struct tree_niter_desc): Removed additional_info + field. Added max field. + 2007-03-13 David Taylor <taylor@candd.org> PR driver/12448: |