2013-09-20 Richard Biener <rguenther@suse.de>
PR middle-end/58484
* tree-scalar-evolution.c (struct scev_info_str): Shrink by
remembering SSA name version and block index.
(new_scev_info_str): Adjust.
(hash_scev_info): Likewise. Also hash the block index.
(eq_scev_info): Adjust.
(find_var_scev_info): Likewise.
(struct instantiate_cache_entry): Remove.
(struct instantiate_cache_type): Use a htab to map name, block
to chrec.
(instantiate_cache_type::~instantiate_cache_type): Adjust.
(get_instantiated_value_entry): Likewise.
(hash_idx_scev_info, eq_idx_scev_info): New functions.
(instantiate_scev_name): Adjust.
* gfortran.dg/pr58484.f: New testcase.
From-SVN: r202790
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