GCC Middle and Back End API Reference
bb-reorder.h File Reference

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Data Structures

struct  target_bb_reorder


int get_uncond_jump_length (void)
void insert_section_boundary_note (void)


struct target_bb_reorder default_target_bb_reorder
struct target_bb_reorderthis_target_bb_reorder

Function Documentation

int get_uncond_jump_length ( void  )
   Return the length of unconditional jump instruction.  

References edge_def::dest, edge_def::flags, basic_block_def::preds, edge_def::src, and basic_block_def::succs.

Referenced by reorder_basic_blocks().

void insert_section_boundary_note ( void  )
   Determine which partition the first basic block in the function
   belongs to, then find the first basic block in the current function
   that belongs to a different section, and insert a
   NOTE_INSN_SWITCH_TEXT_SECTIONS note immediately before it in the
   instruction stream.  When writing out the assembly code,
   encountering this note will make the compiler switch between the
   hot and cold text sections.  

Referenced by compute_bb_for_insn().

Variable Documentation

struct target_bb_reorder default_target_bb_reorder
struct target_bb_reorder* this_target_bb_reorder