Comments
Patch
===================================================================
@@ -280,6 +280,15 @@ struct target_regs {
/* Keep track of the last mode we initialized move costs for. */
int x_last_mode_for_init_move_cost;
+
+ /* Record for each mode whether we can move a register directly to or
+ from an object of that mode in memory. If we can't, we won't try
+ to use that mode directly when accessing a field of that mode. */
+ char x_direct_load[NUM_MACHINE_MODES];
+ char x_direct_store[NUM_MACHINE_MODES];
+
+ /* Record for each mode whether we can float-extend from memory. */
+ bool x_float_extend_from_mem[NUM_MACHINE_MODES][NUM_MACHINE_MODES];
};
extern struct target_regs default_target_regs;
@@ -303,6 +312,12 @@ #define may_move_in_cost \
(this_target_regs->x_may_move_in_cost)
#define may_move_out_cost \
(this_target_regs->x_may_move_out_cost)
+#define direct_load \
+ (this_target_regs->x_direct_load)
+#define direct_store \
+ (this_target_regs->x_direct_store)
+#define float_extend_from_mem \
+ (this_target_regs->x_float_extend_from_mem)
/* Return an exclusive upper bound on the registers occupied by hard
register (reg:MODE REGNO). */
===================================================================
@@ -53,6 +53,7 @@ Software Foundation; either version 3, o
#include "df.h"
#include "diagnostic.h"
#include "ssaexpand.h"
+#include "target-globals.h"
/* Decide whether a function's arguments should be processed
from first to last or from last to first.
@@ -158,17 +159,6 @@ static void do_tablejump (rtx, enum mach
static rtx const_vector_from_tree (tree);
static void write_complex_part (rtx, rtx, bool);
-/* Record for each mode whether we can move a register directly to or
- from an object of that mode in memory. If we can't, we won't try
- to use that mode directly when accessing a field of that mode. */
-
-static char direct_load[NUM_MACHINE_MODES];
-static char direct_store[NUM_MACHINE_MODES];
-
-/* Record for each mode whether we can float-extend from memory. */
-
-static bool float_extend_from_mem[NUM_MACHINE_MODES][NUM_MACHINE_MODES];
-
/* This macro is used to determine whether move_by_pieces should be called
to perform a structure copy. */
#ifndef MOVE_BY_PIECES_P
Third from last: /* The following initialization functions need to generate rtl, so provide a dummy function context for them. */ init_dummy_function_start (); /* Do the target-specific parts of expr initialization. */ ==> init_expr_target (); /* Although the actions of these functions are language-independent, they use optabs, so we cannot call them from backend_init. */ init_set_costs (); ira_init (); This is another case where the cached information seems generally useful, so I've exposed it in regs.h rather than keep it private to expr.c. Richard gcc/ * regs.h (target_regs): Add x_direct_load, x_direct_store and x_float_extend_from_mem. (direct_load, direct_store, float_extend_from_mem): New macros. * expr.c (direct_load, direct_store, float_extend_from_mem): Delete.