Provide _M_2_SQRTPI if missing.

	* intrinsics/erfc_scaled.c (_M_2_SQRTPI): Define if missing.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@205731 138bc75d-0d04-0410-961f-82ee72b054a4
	* cgraphunit.c: Remove struct tags when referring to class
	ipa_opt_pass_d or class opt_pass.
	* function.h: Likewise.
	* lto-cgraph.c: Likewise.
	* pass_manager.h: Likewise.
	* passes.c: Likewise.
	* tree-pass.h: Likewise.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@205732 138bc75d-0d04-0410-961f-82ee72b054a4
	* asan.c: Remove struct tags when referring to class varpool_node.
	* cgraph.h: Likewise.
	* cgraphbuild.c: Likewise.
	* cgraphunit.c: Likewise.
	* dbxout.c: Likewise.
	* dwarf2out.c: Likewise.
	* gimple-fold.c: Likewise.
	* ipa-devirt.c: Likewise.
	* ipa-ref-inline.h: Likewise.
	* ipa-ref.h: Likewise.
	* ipa-reference.c: Likewise.
	* ipa-utils.c: Likewise.
	* ipa.c: Likewise.
	* lto-cgraph.c: Likewise.
	* lto-streamer-out.c: Likewise.
	* lto-streamer.h: Likewise.
	* passes.c: Likewise.
	* toplev.c: Likewise.
	* tree-eh.c: Likewise.
	* tree-emutls.c: Likewise.
	* tree-pass.h: Likewise.
	* tree-ssa-structalias.c: Likewise.
	* tree-vectorizer.c: Likewise.
	* tree.c: Likewise.
	* varasm.c: Likewise.
	* varpool.c: Likewise.

	* cp/decl2.c: Remove struct tags when referring to class varpool_node.

	* lto/lto.c: Remove struct tags when referring to class varpool_node.
	* lto/lto-partition.c: Likewise.
	* lto/lto-symtab.c: Likewise.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@205733 138bc75d-0d04-0410-961f-82ee72b054a4