r273606 - in /trunk/gcc: ChangeLog testsuite/Ch...

[law@gcc.gnu.org]

Author: law
Date: Fri Jul 19 17:04:51 2019
New Revision: 273606

URL: https://gcc.gnu.org/viewcvs?rev=273606&root=gcc&view=rev
Log:
	* tree-ssa-dse.c (initialize_ao_ref_for_dse): Handle
	strncpy.  Drop some trivial dead code.
	(maybe_trim_memstar_call): Handle strncpy.

	* gcc.dg/tree-ssa/ssa-dse-37.c: New test.
	* gcc.dg/tree-ssa/ssa-dse-38.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-37.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-38.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-dse.c