r246606 - in /trunk/gcc: ChangeLog cselib.c cse...

[jakub@gcc.gnu.org]

Author: jakub
Date: Fri Mar 31 06:05:47 2017
New Revision: 246606

URL: https://gcc.gnu.org/viewcvs?rev=246606&root=gcc&view=rev
Log:
	PR debug/80025
	* cselib.h (rtx_equal_for_cselib_1): Add depth argument.
	(rtx_equal_for_cselib_p): Pass 0 to it.
	* cselib.c (cselib_hasher::equal): Likewise.
	(rtx_equal_for_cselib_1): Add depth argument.  If depth
	is 128, don't look up VALUE locs and punt.  Increment
	depth in recursive calls when walking VALUE locs.

	* gcc.dg/torture/pr80025.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr80025.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cselib.c
    trunk/gcc/cselib.h
    trunk/gcc/testsuite/ChangeLog