gcc/
	* config/aarch64/aarch64.c (aarch64_build_builtin_va_list): Initialize
	va_list_gpr_counter_field and va_list_fpr_counter_field.

gcc/testsuite/
	* gcc.dg/tree-ssa/stdarg-2.c: Enable all testcases for AArch64.
	* gcc.dg/tree-ssa/stdarg-3.c: Likewise.
	* gcc.dg/tree-ssa/stdarg-4.c: Likewise.
	* gcc.dg/tree-ssa/stdarg-5.c: Likewise.
	* gcc.dg/tree-ssa/stdarg-6.c: Likewise.

From-SVN: r236818