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PR tree-optimization/82434 * fold-const.h (can_native_encode_type_p, can_native_encode_string_p): Remove. * fold-const.c (native_encode_int): Formatting fixes. If ptr is NULL, don't encode anything, just return what would be otherwise returned. (native_encode_fixed, native_encode_complex, native_encode_vector): Likewise. (native_encode_string): Likewise. Inline by hand can_native_encode_string_p. (can_native_encode_type_p): Remove. (can_native_encode_string_p): Remove. * tree-vect-stmts.c (vectorizable_store): Instead of testing just STRING_CSTs using can_native_encode_string_p, test all CONSTANT_CLASS_P values using native_encode_expr with NULL ptr. * gimple-ssa-store-merging.c (encode_tree_to_bitpos): Remove last argument from native_encode_expr. (rhs_valid_for_store_merging_p): Use native_encode_expr with NULL ptr. (pass_store_merging::execute): Don't unnecessarily look for 3 stmts, but just 2. * gcc.dg/store_merging_9.c: New test. From-SVN: r253483
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