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Age	Commit message (Collapse)	Author	Files	Lines
2007-01-10	re PR middle-end/30322 (((-i-1) + i) +1) is turned into ~i + (i+1) and never ↵	Zdenek Dvorak	1	-4/+85
	into 0 on the tree level) PR tree-optimization/30322 * tree-ssa-loop-ivopts.c (fold_affine_expr, iv_value): Removed. (cand_value_at): Return the value as aff_tree. (may_eliminate_iv): Convert the bound from aff_tree to tree. * tree-affine.c (aff_combination_add_cst, aff_combination_add_product, aff_combination_mult): New functions. (aff_combination_add): Use aff_combination_add_cst. (aff_combination_convert): Allow conversions to a wider type. (tree_to_aff_combination): Handle BIT_NOT_EXPR. * tree-affine.h (aff_combination_mult): Declare. * gcc.dg/tree-ssa/loop-21.c: New test. From-SVN: r120630
2006-12-14	tree-ssa-loop-ivopts.c: Include tree-affine.h.	Zdenek Dvorak	1	-0/+414
	* tree-ssa-loop-ivopts.c: Include tree-affine.h. (divide): Removed. (constant_multiple_of): Fix order of operators for division. (aff_combination_const, aff_combination_elt, aff_combination_scale, aff_combination_add_elt, aff_combination_add, aff_combination_convert, tree_to_aff_combination, add_elt_to_tree, unshare_aff_combination, aff_combination_to_tree): Moved to tree-affine.c and made to work with double_int coefficients. (get_computation_aff, get_computation_at): Work with double_int coefficients. (get_computation_cost_at): Do not use divide. (rewrite_use_nonlinear_expr, rewrite_use_address, rewrite_use_compare): Assert that expressing the computation did not fail. * tree-ssa-address.c: Include tree-affine.h. (add_to_parts, most_expensive_mult_to_index, addr_to_parts, create_mem_ref): Work with double_int coefficients. * tree-affine.c: New file. * tree-affine.h: New file. * tree-flow.h (struct affine_tree_combination): Removed. * Makefile.in (tree-affine.o): Add. (tree-ssa-address.o, tree-ssa-loop-ivopts.o): Add tree-affine.h dependency. From-SVN: r119854