re PR bootstrap/68404 (PGO/LTO bootstrap failure on ppc64le)

re PR bootstrap/68404 (PGO/LTO bootstrap failure on ppc64le)

[gcc]
2016-02-09  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/68404
	* config/rs6000/predicates.md (fusion_gpr_addis): Prevent fusing
	an ADDIS that adds a pointer to a large constant that sets the
	upper16 bits with a load operation.

[gcc/testsuite]
2016-02-09  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/68404
	* gcc.target/powerpc/fusion.c: Rewrite test to use TOC fusion
	instead accessing a really large arrray.
	* gcc.target/powerpc/fusion3.c: Likewise.

From-SVN: r233255