re PR middle-end/48989 (FAIL: gfortran.dg/lto/pr46036 f_lto_pr46036_0.o assemble)

2011-05-18  Richard Guenther  <rguenther@suse.de>

	PR middle-end/48989
	* tree-cfg.c (verify_gimple_assign_unary): Adjust TRUTH op
	operand verification.
	(verify_gimple_assign_binary): Likewise.
	* tree-ssa.c (useless_type_conversion_p): Preserve conversions
	to non-1-precision BOOLEAN_TYPEs.

From-SVN: r173854