Implement P0035R4, C++17 new of over-aligned types.

gcc/cp/
	* cp-tree.h (enum cp_tree_index): Add CPTI_ALIGN_TYPE.
	(align_type_node): New macro.
	* call.c (build_operator_new_call): Handle C++17 aligned new.
	(second_parm_is_size_t, build_op_delete_call): Likewise.
	(non_placement_deallocation_fn_p): Likewise. Rename to
	usual_deallocation_fn_p.
	(aligned_allocation_fn_p, aligned_deallocation_fn_p): New.
	* decl.c (cxx_init_decl_processing): Add aligned new support.
	* init.c (type_has_new_extended_alignment): New.
	(build_new_1): Handle aligned new.
	* tree.c (vec_copy_and_insert): New.
gcc/c-family/
	* c.opt: Add -faligned-new and -Waligned-new.
	* c-common.c (max_align_t_align): Split out from...
	(cxx_fundamental_alignment_p): ...here.
	* c-common.h: Declare it.
	* c-cppbuiltin.c (c_cpp_builtins): Handle aligned new.
libstdc++-v3/
	* libsupc++/new: Declare aligned new/delete operators.
	* config/abi/pre/gnu.ver: Export them.
	* configure.ac: Check for aligned_alloc, posix_memalign, memalign,
	_aligned_malloc.
	* libsupc++/new_opa.cc: New.
	* libsupc++/new_opant.cc: New.
	* libsupc++/new_opva.cc: New.
	* libsupc++/new_opva.cc: New.
	* libsupc++/del_opa.cc: New.
	* libsupc++/del_opant.cc: New.
	* libsupc++/del_opsa.cc: New.
	* libsupc++/del_opva.cc: New.
	* libsupc++/del_opvant.cc: New.
	* libsupc++/del_opvsa.cc: New.
	* libsupc++/Makefile.am: Build them.

From-SVN: r240056

1 files changed, 37 insertions, 3 deletions

diff --git a/libstdc++-v3/libsupc++/Makefile.in b/libstdc++-v3/libsupc++/Makefile.in
index 3fb9d16..e828ed9 100644
--- a/libstdc++-v3/libsupc++/Makefile.in
+++ b/libstdc++-v3/libsupc++/Makefile.in
@@ -125,9 +125,11 @@ am__objects_1 = array_type_info.lo atexit_arm.lo atexit_thread.lo \
 	function_type_info.lo fundamental_type_info.lo guard.lo \
 	guard_error.lo hash_bytes.lo nested_exception.lo \
 	new_handler.lo new_op.lo new_opnt.lo new_opv.lo new_opvnt.lo \
-	pbase_type_info.lo pmem_type_info.lo pointer_type_info.lo \
-	pure.lo si_class_type_info.lo tinfo.lo tinfo2.lo vec.lo \
-	vmi_class_type_info.lo vterminate.lo
+	new_opa.lo new_opant.lo new_opva.lo new_opvant.lo del_opa.lo \
+	del_opant.lo del_opsa.lo del_opva.lo del_opvant.lo \
+	del_opvsa.lo pbase_type_info.lo pmem_type_info.lo \
+	pointer_type_info.lo pure.lo si_class_type_info.lo tinfo.lo \
+	tinfo2.lo vec.lo vmi_class_type_info.lo vterminate.lo
 @GLIBCXX_HOSTED_TRUE@am__objects_2 = cp-demangle.lo
 @ENABLE_VTABLE_VERIFY_TRUE@@VTV_CYGMIN_FALSE@am__objects_3 =  \
 @ENABLE_VTABLE_VERIFY_TRUE@@VTV_CYGMIN_FALSE@	vtv_stubs.lo
@@ -445,6 +447,16 @@ sources = \
 	new_opnt.cc \
 	new_opv.cc \
 	new_opvnt.cc \
+	new_opa.cc \
+	new_opant.cc \
+	new_opva.cc \
+	new_opvant.cc \
+	del_opa.cc \
+	del_opant.cc \
+	del_opsa.cc \
+	del_opva.cc \
+	del_opvant.cc \
+	del_opvsa.cc \
 	pbase_type_info.cc \
 	pmem_type_info.cc \
 	pointer_type_info.cc \
@@ -916,6 +928,28 @@ del_opvs.lo: del_opvs.cc
 del_opvs.o: del_opvs.cc
 	$(CXXCOMPILE) -std=gnu++14 -Wno-sized-deallocation -c $<
 
+# Use special rules for the C++17 sources so that the proper flags are passed.
+new_opa.lo: new_opa.cc
+	$(LTCXXCOMPILE) -std=gnu++1z -c $<
+new_opant.lo: new_opant.cc
+	$(LTCXXCOMPILE) -std=gnu++1z -c $<
+new_opva.lo: new_opva.cc
+	$(LTCXXCOMPILE) -std=gnu++1z -c $<
+new_opvant.lo: new_opvant.cc
+	$(LTCXXCOMPILE) -std=gnu++1z -c $<
+del_opa.lo: del_opa.cc
+	$(LTCXXCOMPILE) -std=gnu++1z -c $<
+del_opant.lo: del_opant.cc
+	$(LTCXXCOMPILE) -std=gnu++1z -c $<
+del_opsa.lo: del_opsa.cc
+	$(LTCXXCOMPILE) -std=gnu++1z -c $<
+del_opva.lo: del_opva.cc
+	$(LTCXXCOMPILE) -std=gnu++1z -c $<
+del_opvant.lo: del_opvant.cc
+	$(LTCXXCOMPILE) -std=gnu++1z -c $<
+del_opvsa.lo: del_opvsa.cc
+	$(LTCXXCOMPILE) -std=gnu++1z -c $<
+
 install-stdHEADERS: $(std_HEADERS)
 	@$(NORMAL_INSTALL)
 	$(mkinstalldirs) $(DESTDIR)$(stddir)