re PR tree-optimization/68356 (FAIL: gcc.dg/torture/pr68264.c -O* execution test...

re PR tree-optimization/68356 (FAIL: gcc.dg/torture/pr68264.c   -O*  execution test on x86_64-apple-darwin1(0|4))

2018-12-29  Dominique d'Humieres  <dominiq@gcc.gnu.org>

	PR tree-optimization/68356
	PR target/81210
	PR target/81693
	* gcc.dg/torture/pr68264.c: Skip on darwin.
	* gcc.dg/torture/pr68037-1.c: Likewise.
	* gcc.dg/torture/pr68037-2.c: Likewise.
	* gcc.dg/torture/pr68037-3.c: Likewise.
	* gcc.dg/torture/pr25967-1.c: Likewise.
	* gcc.dg/torture/pr25967-2.c: Likewise.

M    ChangeLog
M    gcc.dg/torture/pr25967-1.c
M    gcc.dg/torture/pr25967-2.c
M    gcc.dg/torture/pr68037-1.c
M    gcc.dg/torture/pr68037-2.c
M    gcc.dg/torture/pr68037-3.c
M    gcc.dg/torture/pr68264.c

From-SVN: r267462