* lib/target-supports.exp (check_effective_target_fgnu_tm): New
	proc.
	* gfortran.dg/trans-mem-skel.f90: Gate test on effective_target
	fgnu_tm. 
	* gcc.dg/lto/trans-mem-1_0.c, gcc.dg/lto/trans-mem-2_0.c,
	gcc.dg/lto/trans-mem-3_0.c, gcc.dg/lto/trans-mem-4_0.c: Ditto.
	* gcc.dg/tm/tm.exp: Gate the whole of gcc.dg/tm on
	effective_target fgnu_tm.
	* g++.dg/tm/tm.exp: Ditto for g++.dg/tm.

From-SVN: r184237