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xtensa.h (REGISTER_MOVE_COST, [...]): Remove macros.

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* config/xtensa/xtensa.h (REGISTER_MOVE_COST, MEMORY_MOVE_COST):
	Remove macros.
	* config/xtensa/xtensa.c (xtensa_register_move_cost,
	xtensa_memory_move_cost): New functions.
	(TARGET_REGISTER_MOVE_COST, TARGET_REGISTER_MOVE_COST): Define.

From-SVN: r170071
This commit is contained in:
Anatoly Sokolov 2011-02-12 15:21:54 +03:00 • committed by Anatoly Sokolov
parent f3d533d3b5
commit 5378dda2dd
3 changed files with 43 additions and 20 deletions
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8
gcc/ChangeLog
View file

@ -1,3 +1,11 @@
2011-02-12 Anatoly Sokolov <aesok@post.ru>
* config/xtensa/xtensa.h (REGISTER_MOVE_COST, MEMORY_MOVE_COST):
Remove macros.
* config/xtensa/xtensa.c (xtensa_register_move_cost,
xtensa_memory_move_cost): New functions.
(TARGET_REGISTER_MOVE_COST, TARGET_REGISTER_MOVE_COST): Define.
2011-02-12 Alexandre Oliva <aoliva@redhat.com>
PR lto/47225

35
gcc/config/xtensa/xtensa.c
View file

@ -137,6 +137,9 @@ static unsigned int xtensa_multibss_section_type_flags (tree, const char *,
static section *xtensa_select_rtx_section (enum machine_mode, rtx,
unsigned HOST_WIDE_INT);
static bool xtensa_rtx_costs (rtx, int, int, int *, bool);
static int xtensa_register_move_cost (enum machine_mode, reg_class_t,
reg_class_t);
static int xtensa_memory_move_cost (enum machine_mode, reg_class_t, bool);
static tree xtensa_build_builtin_va_list (void);
static bool xtensa_return_in_memory (const_tree, const_tree);
static tree xtensa_gimplify_va_arg_expr (tree, tree, gimple_seq *,
@ -213,6 +216,10 @@ static const struct default_options xtensa_option_optimization_table[] =
#undef TARGET_MODE_DEPENDENT_ADDRESS_P
#define TARGET_MODE_DEPENDENT_ADDRESS_P xtensa_mode_dependent_address_p
#undef TARGET_REGISTER_MOVE_COST
#define TARGET_REGISTER_MOVE_COST xtensa_register_move_cost
#undef TARGET_MEMORY_MOVE_COST
#define TARGET_MEMORY_MOVE_COST xtensa_memory_move_cost
#undef TARGET_RTX_COSTS
#define TARGET_RTX_COSTS xtensa_rtx_costs
#undef TARGET_ADDRESS_COST
@ -3307,6 +3314,34 @@ xtensa_select_rtx_section (enum machine_mode mode ATTRIBUTE_UNUSED,
return function_section (current_function_decl);
}
/* Worker function for TARGET_REGISTER_MOVE_COST. */
static int
xtensa_register_move_cost (enum machine_mode mode ATTRIBUTE_UNUSED,
reg_class_t from, reg_class_t to)
{
if (from == to && from != BR_REGS && to != BR_REGS)
return 2;
else if (reg_class_subset_p (from, AR_REGS)
&& reg_class_subset_p (to, AR_REGS))
return 2;
else if (reg_class_subset_p (from, AR_REGS) && to == ACC_REG)
return 3;
else if (from == ACC_REG && reg_class_subset_p (to, AR_REGS))
return 3;
else
return 10;
}
/* Worker function for TARGET_MEMORY_MOVE_COST. */
static int
xtensa_memory_move_cost (enum machine_mode mode ATTRIBUTE_UNUSED,
reg_class_t rclass ATTRIBUTE_UNUSED,
bool in ATTRIBUTE_UNUSED)
{
return 4;
}
/* Compute a (partial) cost for rtx X. Return true if the complete
cost has been computed, and false if subexpressions should be

20
gcc/config/xtensa/xtensa.h
View file

@ -723,26 +723,6 @@ typedef struct xtensa_args
indexing purposes) so give the MEM rtx a words's mode. */
#define FUNCTION_MODE SImode
/* A C expression for the cost of moving data from a register in
class FROM to one in class TO. The classes are expressed using
the enumeration values such as 'GENERAL_REGS'. A value of 2 is
the default; other values are interpreted relative to that. */
#define REGISTER_MOVE_COST(MODE, FROM, TO) \
(((FROM) == (TO) && (FROM) != BR_REGS && (TO) != BR_REGS) \
? 2 \
: (reg_class_subset_p ((FROM), AR_REGS) \
&& reg_class_subset_p ((TO), AR_REGS) \
? 2 \
: (reg_class_subset_p ((FROM), AR_REGS) \
&& (TO) == ACC_REG \
? 3 \
: ((FROM) == ACC_REG \
&& reg_class_subset_p ((TO), AR_REGS) \
? 3 \
: 10))))
#define MEMORY_MOVE_COST(MODE, CLASS, IN) 4
#define BRANCH_COST(speed_p, predictable_p) 3
/* How to refer to registers in assembler output.