postreload.c (reload_cse_simplify_set): Call cselib_lookup earlier.

	* postreload.c (reload_cse_simplify_set): Call cselib_lookup
	earlier.  Don't check if SRC is a constant.

From-SVN: r68534

gcc/Makefile.in

@@ -813,7 +813,7 @@ OBJS = alias.o bb-reorder.o bitmap.o builtins.o caller-save.o calls.o	   \
  haifa-sched.o hashtable.o hooks.o ifcvt.o insn-attrtab.o insn-emit.o	   \
  insn-extract.o insn-opinit.o insn-output.o insn-peep.o insn-recog.o	   \
  integrate.o intl.o jump.o  langhooks.o lcm.o lists.o local-alloc.o  	   \
- loop.o mbchar.o optabs.o options.o opts.o params.o predict.o		   \
+ loop.o mbchar.o optabs.o options.o opts.o params.o postreload.o predict.o \
  print-rtl.o print-tree.o value-prof.o					   \
  profile.o ra.o ra-build.o ra-colorize.o ra-debug.o ra-rewrite.o	   \
  real.o recog.o reg-stack.o regclass.o regmove.o regrename.o		   \
@@ -1725,6 +1725,10 @@ reload.o : reload.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(RTL_H) flags.h
    $(REGS_H) function.h real.h toplev.h $(TM_P_H)
 reload1.o : reload1.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(RTL_H) real.h flags.h \
    $(EXPR_H) $(OPTABS_H) reload.h $(REGS_H) hard-reg-set.h insn-config.h \
+   $(BASIC_BLOCK_H) $(RECOG_H) output.h function.h toplev.h $(TM_P_H) \
+   except.h $(TREE_H)
+postreload.o : postreload.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(RTL_H) real.h flags.h \
+   $(EXPR_H) $(OPTABS_H) reload.h $(REGS_H) hard-reg-set.h insn-config.h \
    $(BASIC_BLOCK_H) $(RECOG_H) output.h function.h toplev.h cselib.h $(TM_P_H) \
    except.h $(TREE_H)
 caller-save.o : caller-save.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(RTL_H) \