r244979 - in /trunk/gcc: ChangeLog combine.c te...

[amker@gcc.gnu.org]

Author: amker
Date: Fri Jan 27 14:42:23 2017
New Revision: 244979

URL: https://gcc.gnu.org/viewcvs?rev=244979&root=gcc&view=rev
Log:
	PR rtl-optimization/78559
	* combine.c (try_combine): Discard REG_EQUAL and REG_EQUIV for
	other_insn in combine.

	gcc/testsuite
	PR rtl-optimization/78559
	* gcc.c-torture/execute/pr78559.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/pr78559.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/combine.c
    trunk/gcc/testsuite/ChangeLog