r257087 - in /trunk/gcc: ChangeLog dce.c testsu...

[jakub@gcc.gnu.org]

Author: jakub
Date: Fri Jan 26 11:48:05 2018
New Revision: 257087

URL: https://gcc.gnu.org/viewcvs?rev=257087&root=gcc&view=rev
Log:
	PR rtl-optimization/83985
	* dce.c (deletable_insn_p): Return false for separate shrink wrapping
	REG_CFA_RESTORE insns.
	(delete_unmarked_insns): Don't ignore separate shrink wrapping
	REG_CFA_RESTORE insns here.

	* gcc.dg/pr83985.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr83985.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/dce.c
    trunk/gcc/testsuite/ChangeLog