2019-11-22  Andrew Stubbs  <ams@codesourcery.com>

	gcc/
	* config/gcn/gcn.c (OMP_LDS_SIZE): Define.
	(ACC_LDS_SIZE): Define.
	(OTHER_LDS_SIZE): Define.
	(LDS_SIZE): Redefine using above.
	(gcn_expand_prologue): Initialize m0 with LDS_SIZE-1.

From-SVN: r278622