2018-05-02  Tom de Vries  <tom@codesourcery.com>

	PR testsuite/85106
	* gcc.dg/ipa/ipa-icf-38.c: Use scan-ltrans-tree-dump.
	* lib/scanltranstree.exp: New file.
	* lib/target-supports.exp (scan-ltrans-tree-dump_required_options)
	(scan-ltrans-tree-dump-times_required_options)
	(scan-ltrans-tree-dump-not_required_options)
	(scan-ltrans-tree-dump-dem_required_options)
	(scan-ltrans-tree-dump-dem-not_required_options): New proc.
	* lib/gcc-dg.exp: Include scanltranstree.exp.

	* testsuite/lib/libatomic.exp: Include scanltranstree.exp.

	* testsuite/lib/libgomp.exp: Include scanltranstree.exp.

	* testsuite/lib/libitm.exp: Include scanltranstree.exp.

	* testsuite/lib/libvtv.exp: Include scanltranstree.exp.

	* doc/sourcebuild.texi (Commands for use in dg-final, Scan optimization
	dump files): Add ltrans-tree.

From-SVN: r259838