reload.c (find_reloads): Exit loop once we find this operand cannot be reloaded somehow for this alternative.

2013-07-22  Po-Chun Chang  <pchang9@cs.wisc.edu>

	* reload.c (find_reloads): Exit loop once we find this operand
	cannot be reloaded somehow for this alternative.

	* reload.c (find_reloads): Exit loop once we find a hard register.

	* rtlanal.c (computed_jump_p): Exit loop once we find label
	reference is used.

	* i386.c (ix86_pad_returns): Exit loop after setting replace.

	* cfgloopmanip.c (remove_path): Exit loop after setting
	irred_invalidated.

	* gensupport.c (subst_dup): Avoid loop if code is not
	MATCH_DUP nor MATCH_OP_DUP.

From-SVN: r201174