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	* tree-cfg.c (gimple_can_merge_blocks_p): For -O0
	return false if merging the bbs would lead to goto_locus
	location being lost from the IL.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@160219 138bc75d-0d04-0410-961f-82ee72b054a4