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reginfo.c (init_reg_sets): Don't zero globals here. 

gcc/
	* reginfo.c (init_reg_sets): Don't zero globals here.  Update comment
	to say that the function can be called more than once.
	* target-globals.c (save_target_globals): Call init_reg_sets.

From-SVN: r162110
This commit is contained in:
Richard Sandiford 2010-07-12 19:04:21 +00:00 committed by Richard Sandiford
parent 76ee381a9c
commit 77f558794e
3 changed files with 10 additions and 3 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2010-07-12 Richard Sandiford <rdsandiford@googlemail.com>
* reginfo.c (init_reg_sets): Don't zero globals here. Update comment
to say that the function can be called more than once.
* target-globals.c (save_target_globals): Call init_reg_sets.
2010-07-12 Richard Sandiford <rdsandiford@googlemail.com>
* Makefile.in (bb-reorder.o, target-globals.o): Depend on bb-reorder.h

6
gcc/reginfo.c
View File

@ -142,8 +142,9 @@ reg_set_to_hard_reg_set (HARD_REG_SET *to, const_bitmap from)
}
}
/* Function called only once to initialize the above data on reg usage.
Once this is done, various switches may override. */
/* Function called only once per target_globals to initialize the
target_hard_regs structure. Once this is done, various switches
may override. */
void
init_reg_sets (void)
{
@ -186,7 +187,6 @@ init_reg_sets (void)
memcpy (reg_alloc_order, initial_reg_alloc_order, sizeof reg_alloc_order);
#endif
memcpy (reg_names, initial_reg_names, sizeof reg_names);
memset (global_regs, 0, sizeof global_regs);
}
/* Initialize may_move_cost and friends for mode M. */

1
gcc/target-globals.c
View File

@ -80,6 +80,7 @@ save_target_globals (void)
g->gcse = XCNEW (struct target_gcse);
g->bb_reorder = XCNEW (struct target_bb_reorder);
restore_target_globals (g);
init_reg_sets ();
target_reinit ();
return g;
}