gcc/

	PR tree-optimization/65002
	* tree-cfg.c (pass_data_fixup_cfg): Don't update
	SSA on start.
	* tree-sra.c (some_callers_have_no_vuse_p): New.
	(ipa_early_sra): Reject functions whose callers
	assume function is read only.

gcc/testsuite/

	PR tree-optimization/65002
	* gcc.dg/pr65002.C: New.

From-SVN: r220679