df_mw_hardreg Struct Reference

#include <df.h>

Collaboration diagram for df_mw_hardreg:

Data Fields
rtx	mw_reg
ENUM_BITFIELD(df_ref_type) type int	flags: 16
unsigned int	start_regno
unsigned int	end_regno
unsigned int	mw_order

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Detailed Description

   The set of multiword hardregs used as operands to this
   instruction. These are factored into individual uses and defs but
   the aggregate is still needed to service the REG_DEAD and
   REG_UNUSED notes.  

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Field Documentation

unsigned int df_mw_hardreg::end_regno

Referenced by df_ignore_stack_reg(), and df_remove_dead_eq_notes().

ENUM_BITFIELD (df_ref_type) type int df_mw_hardreg::flags

     These two bitfields are intentionally oversized, in the hope that
     accesses to 16-bit fields will usually be quicker.  

                                   Used to see if the ref is read or write.  

Referenced by df_note_alloc().

unsigned int df_mw_hardreg::mw_order

rtx df_mw_hardreg::mw_reg

Referenced by df_ignore_stack_reg(), and df_remove_dead_eq_notes().

unsigned int df_mw_hardreg::start_regno

Referenced by df_ignore_stack_reg(), df_remove_dead_eq_notes(), and df_whole_mw_reg_dead_p().

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The documentation for this struct was generated from the following file:

• df.h