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* tree.h (build_function_decl_skip_args): Add boolean parameter. (build_function_type_skip_args): Delete. * tree.c (build_function_type_skip_args): Make static and add SKIP_RETURN parameter. Fix thinko in the handling of variants. (build_function_decl_skip_args): Add SKIP_RETURN parameter and pass it to build_function_type_skip_args. * cgraph.h (cgraph_function_versioning): Add boolean parameter. (tree_function_versioning): Likewise. * cgraph.c (cgraph_create_virtual_clone): Adjust call to build_function_decl_skip_args. * cgraphunit.c (cgraph_function_versioning): Add SKIP_RETURN parameter and pass it to build_function_decl_skip_args/tree_function_versioning. (cgraph_materialize_clone): Adjust call to tree_function_versioning. * ipa-inline-transform.c (save_inline_function_body): Likewise. * trans-mem.c (ipa_tm_create_version): Likewise. * tree-sra.c (modify_function): Ditto for cgraph_function_versioning. * tree-inline.c (declare_return_variable): Remove always-true test. (tree_function_versioning): Add SKIP_RETURN parameter. If the function returns non-void and SKIP_RETURN, create a void-typed RESULT_DECL. * ipa-split.c (split_function): Skip the return value for the split part if it doesn't return. From-SVN: r183102
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