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Date: Tue, 10 Nov 2009 16:25:00 -0000
From: ddmetro <puzzlesdj@gmail.com>
To: gcc@gcc.gnu.org
Subject: help on - adding a new pass to gcc
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Hi All,
         We are adding a new pass for - structural hazard optimization - in
gcc.
         We have added a rtl_opt_pass variable(pass_sched3) declaration in
tree-pass.h and defined the same in a new file - sched-by-category.c
         We then added a target in gcc/Makefile.in, as follows:
sched-by-category.o : sched-by-category.c $(CONFIG_H) $(SYSTEM_H)
coretypes.h $(TM_H) \
   $(RTL_H) $(SCHED_INT_H) $(REGS_H) hard-reg-set.h $(FLAGS_H) insn-config.h
\
   $(FUNCTION_H) $(INSN_ATTR_H) $(TOPLEV_H) $(RECOG_H) except.h $(PARAMS_H)
\
   $(TM_P_H) $(TARGET_H) $(CFGLAYOUT_H) $(TIMEVAR_H) tree-pass.h  \
   $(DBGCNT_H)

         We are getting an error in passes.c - undefined reference to
'pass_sched3'
         Kindly guide us as to what is wrong in our approach of adding a new
file to gcc build.

Thanking You,
  Dhiraj.
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