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gcc/
* Makefile.in (gcse.o, target-globals.o): Depend on gcse.h..
* gcse.h: New file.
* gcse.c: Include gcse.h.
(default_target_gcse): New variable.
(this_target_gcse): New conditional variable.
(can_copy): Redefine as a macro.
(can_copy_init_p): New macro.
(can_copy_p): Remove can_copy_init_p.
* target-globals.h (this_target_gcse): Declare.
(target_globals): Add a gcse field.
(restore_target_globals): Copy the gcse field to
this_target_gcse.
* target-globals.c: Include gcse.h.
(default_target_globals): Initialize the gcse field.
(save_target_globals): Likewise.
From-SVN: r162108
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