ls_expr Struct Reference

Collaboration diagram for ls_expr:

Data Fields
struct expr *	expr
rtx	pattern
rtx	pattern_regs
rtx	loads
rtx	stores
struct ls_expr *	next
int	invalid
int	index
unsigned int	hash_index
rtx	reaching_reg

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Detailed Description

This is a list of expressions which are MEMs and will be used by load
   or store motion.
   Load motion tracks MEMs which aren't killed by anything except itself,
   i.e. loads and stores to a single location.
   We can then allow movement of these MEM refs with a little special
   allowance. (all stores copy the same value to the reaching reg used
   for the loads).  This means all values used to store into memory must have
   no side effects so we can re-issue the setter value.   

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Field Documentation

struct expr* ls_expr::expr

Referenced by ldst_entry(), and trim_ld_motion_mems().

unsigned int ls_expr::hash_index

Referenced by ldst_entry(), and trim_ld_motion_mems().

int ls_expr::index

Referenced by ldst_entry(), and print_ldst_list().

int ls_expr::invalid

Referenced by compute_ld_motion_mems(), invalidate_any_buried_refs(), ldst_entry(), and trim_ld_motion_mems().

rtx ls_expr::loads

Referenced by compute_ld_motion_mems(), free_ldst_entry(), ldst_entry(), and print_ldst_list().

struct ls_expr* ls_expr::next

Referenced by free_ld_motion_mems(), ldst_entry(), print_ldst_list(), and trim_ld_motion_mems().

rtx ls_expr::pattern

Referenced by pre_ldst_expr_hasher::equal(), find_rtx_in_ldst(), pre_ldst_expr_hasher::hash(), ldst_entry(), print_ldst_list(), and trim_ld_motion_mems().

rtx ls_expr::pattern_regs

Referenced by ldst_entry().

rtx ls_expr::reaching_reg

Referenced by ldst_entry().

rtx ls_expr::stores

Referenced by compute_ld_motion_mems(), free_ldst_entry(), ldst_entry(), print_ldst_list(), and update_ld_motion_stores().

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

• gcse.c