The following replaces NOP_EXPR uses with CASE_CONVERT appropriately and improves genmatch handling of side-effects for captures used in C expressions.
Bootstrapped and tested on x86_64-unknow-linux-gnu, applied.
Richard.
2014-10-30 Richard Biener <rguent...@suse.de>
* genmatch.c (capture_info::walk_c_expr): Ignore capture
uses inside TREE_TYPE ().
* gimple-ssa-strength-reduction.c (stmt_cost): Use CASE_CONVERT.
(find_candidates_dom_walker::before_dom_children): Likewise.
(replace_mult_candidate): Use CONVERT_EXPR_CODE_P.
(replace_profitable_candidates): Likewise.
* tree-ssa-dom.c (initialize_hash_element): Canonicalize
CONVERT_EXPR_CODE_P to CONVERT_EXPR.
* convert.c (convert_to_integer): Use CASE_CONVERT.
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