+2014-05-13 Christian Bruel <christian.bruel@st.com>
+
+ * target.def (mode_switching): New hook vector.
+ (mode_emit, mode_needed, mode_after, mode_entry): New hooks.
+ (mode_exit, modepriority_to_mode): Likewise.
+ * mode-switching.c (MODE_NEEDED, MODE_AFTER, MODE_ENTRY): Hookify.
+ (MODE_EXIT, MODE_PRIORITY_TO_MODE, EMIT_MODE_SET): Likewise.
+ (default_priority_to_mode): Define.
+ * targhooks.h (default_priority_to_mode): Declare.
+ * target.h: Include tm.h and hard-reg-set.h.
+ * doc/tm.texi.in (EMIT_MODE_SET, MODE_NEEDED, MODE_AFTER, MODE_ENTRY)
+ (MODE_EXIT, MODE_PRIORITY_TO_MODE): Delete and hookify.
+ * doc/tm.texi Regenerate.
+ * config/sh/sh.h (MODE_NEEDED, MODE_AFTER, MODE_ENTRY): Delete
+ (MODE_EXIT, MODE_PRIORITY_TO_MODE, EMIT_MODE_SET): Likewise.
+ * config/sh/sh.c (sh_emit_mode_set, sh_mode_priority): Hookify.
+ (sh_mode_needed, sh_mode_after, sh_mode_entry, sh_mode_exit): Likewise.
+ * config/i386/i386.h (MODE_NEEDED, MODE_AFTER, MODE_ENTRY): Delete
+ (MODE_EXIT, MODE_PRIORITY_TO_MODE, EMIT_MODE_SET): Likewise.
+ * config/i386/i386-protos.h (ix86_mode_needed, ix86_mode_after)
+ (ix86_mode_entrym, ix86_emit_mode_set): Remove external declaration.
+ * config/i386/i386.c (ix86_mode_needed, ix86_mode_after, ix86_mode_exit,
+ (ix86_mode_entry, ix86_mode_priority, ix86_emit_mode_set): Hookify.
+ * config/epiphany/epiphany.h (MODE_NEEDED, MODE_AFTER, MODE_ENTRY):
+ Delete
+ (MODE_EXIT, MODE_PRIORITY_TO_MODE, EMIT_MODE_SET): Likewise.
+ * config/sh/sh.h (MODE_NEEDED, MODE_AFTER, MODE_ENTRY): Delete
+ (MODE_EXIT, MODE_PRIORITY_TO_MODE, EMIT_MODE_SET): Likewise.
+ * config/sh/sh.c (sh4_emit_mode_set, sh4_mode_needed): Hookify.
+ (sh4_mode_after, sh4_mode_entry, sh4_mode_exit): Likewise.
+ * config/epiphany/epiphany-protos.h (epiphany_mode_needed)
+ (emit_set_fp_mode, epiphany_mode_entry_exit, epiphany_mode_after)
+ (epiphany_mode_priority_to_mode): Remove declaration.
+ * config/epiphany/epiphany.c (emit_set_fp_mode): Hookify.
+ (epiphany_mode_needed, epiphany_mode_priority_to_mode): Likewise.
+ (epiphany_mode_entry, epiphany_mode_exit, epiphany_mode_after):
+ Likewise.
+ (epiphany_mode_priority_to_mode): Change priority type. Hookify.
+ (epiphany_mode_needed, epiphany_mode_entry_exit): Hookify.
+ (epiphany_mode_after, epiphany_mode_entry, emit_set_fp_mode): Hookify.
+
2014-05-13 Jakub Jelinek <jakub@redhat.com>
PR target/61060
extern void epiphany_insert_mode_switch_use (rtx insn, int, int);
extern void epiphany_expand_set_fp_mode (rtx *operands);
extern int epiphany_mode_needed (int entity, rtx insn);
-extern int epiphany_mode_entry_exit (int entity, bool);
extern int epiphany_mode_after (int entity, int last_mode, rtx insn);
-extern int epiphany_mode_priority_to_mode (int entity, unsigned priority);
extern bool epiphany_epilogue_uses (int regno);
extern bool epiphany_optimize_mode_switching (int entity);
extern bool epiphany_is_interrupt_p (tree);
/* We further restrict the minimum to be a multiple of eight. */
#define TARGET_MIN_ANCHOR_OFFSET (optimize_size ? 0 : -2040)
+/* Mode switching hooks. */
+
+#define TARGET_MODE_EMIT emit_set_fp_mode
+
+#define TARGET_MODE_NEEDED epiphany_mode_needed
+
+#define TARGET_MODE_PRIORITY epiphany_mode_priority
+
+#define TARGET_MODE_ENTRY epiphany_mode_entry
+
+#define TARGET_MODE_EXIT epiphany_mode_exit
+
+#define TARGET_MODE_AFTER epiphany_mode_after
+
#include "target-def.h"
#undef TARGET_ASM_ALIGNED_HI_OP
gcc_unreachable ();
}
-int
-epiphany_mode_priority_to_mode (int entity, unsigned priority)
+static int
+epiphany_mode_priority (int entity, int priority)
{
if (entity == EPIPHANY_MSW_ENTITY_AND || entity == EPIPHANY_MSW_ENTITY_OR
|| entity== EPIPHANY_MSW_ENTITY_CONFIG)
}
}
-int
+static int
epiphany_mode_entry_exit (int entity, bool exit)
{
int normal_mode = epiphany_normal_fp_mode ;
return last_mode;
}
+static int
+epiphany_mode_entry (int entity)
+{
+ return epiphany_mode_entry_exit (entity, false);
+}
+
+static int
+epiphany_mode_exit (int entity)
+{
+ return epiphany_mode_entry_exit (entity, true);
+}
+
void
emit_set_fp_mode (int entity, int mode, HARD_REG_SET regs_live ATTRIBUTE_UNUSED)
{
{ 2, 2, 2, \
FP_MODE_NONE, FP_MODE_NONE, FP_MODE_NONE, FP_MODE_NONE, FP_MODE_NONE }
-#define MODE_NEEDED(ENTITY, INSN) epiphany_mode_needed((ENTITY), (INSN))
-
-#define MODE_PRIORITY_TO_MODE(ENTITY, N) \
- (epiphany_mode_priority_to_mode ((ENTITY), (N)))
-
-#define EMIT_MODE_SET(ENTITY, MODE, HARD_REGS_LIVE) \
- emit_set_fp_mode ((ENTITY), (MODE), (HARD_REGS_LIVE))
-
-#define MODE_ENTRY(ENTITY) (epiphany_mode_entry_exit ((ENTITY), false))
-#define MODE_EXIT(ENTITY) (epiphany_mode_entry_exit ((ENTITY), true))
-#define MODE_AFTER(ENTITY, LAST_MODE, INSN) \
- (epiphany_mode_after ((ENTITY), (LAST_MODE), (INSN)))
-
#define TARGET_INSERT_MODE_SWITCH_USE epiphany_insert_mode_switch_use
/* Mode switching entities. */
{
if (!INSN_P (insn))
continue;
- mode = MODE_NEEDED (e, insn);
+ mode = epiphany_mode_needed (e, insn);
if (mode == no_mode)
continue;
if (target_insert_mode_switch_use)
extern bool ix86_cannot_change_mode_class (enum machine_mode,
enum machine_mode, enum reg_class);
-extern int ix86_mode_needed (int, rtx);
-extern int ix86_mode_after (int, int, rtx);
-extern int ix86_mode_entry (int);
-extern int ix86_mode_exit (int);
-
extern bool ix86_libc_has_function (enum function_class fn_class);
-#ifdef HARD_CONST
-extern void ix86_emit_mode_set (int, int, HARD_REG_SET);
-#endif
-
extern void x86_order_regs_for_local_alloc (void);
extern void x86_function_profiler (FILE *, int);
extern void x86_emit_floatuns (rtx [2]);
/* Return mode that entity must be switched into
prior to the execution of insn. */
-int
+static int
ix86_mode_needed (int entity, rtx insn)
{
switch (entity)
/* Return a mode that ENTITY is assumed to be
switched to at function entry. */
-int
+static int
ix86_mode_entry (int entity)
{
switch (entity)
/* Return a mode that ENTITY is assumed to be
switched to at function exit. */
-int
+static int
ix86_mode_exit (int entity)
{
switch (entity)
}
}
+static int
+ix86_mode_priority (int entity ATTRIBUTE_UNUSED, int n)
+{
+ return n;
+}
+
/* Output code to initialize control word copies used by trunc?f?i and
rounding patterns. CURRENT_MODE is set to current control word,
while NEW_MODE is set to new control word. */
/* Generate one or more insns to set ENTITY to MODE. */
-void
+/* Generate one or more insns to set ENTITY to MODE. HARD_REG_LIVE
+ is the set of hard registers live at the point where the insn(s)
+ are to be inserted. */
+
+static void
ix86_emit_mode_set (int entity, int mode, HARD_REG_SET regs_live)
{
switch (entity)
#define TARGET_FLOAT_EXCEPTIONS_ROUNDING_SUPPORTED_P \
ix86_float_exceptions_rounding_supported_p
+#undef TARGET_MODE_EMIT
+#define TARGET_MODE_EMIT ix86_emit_mode_set
+
+#undef TARGET_MODE_NEEDED
+#define TARGET_MODE_NEEDED ix86_mode_needed
+
+#undef TARGET_MODE_AFTER
+#define TARGET_MODE_AFTER ix86_mode_after
+
+#undef TARGET_MODE_ENTRY
+#define TARGET_MODE_ENTRY ix86_mode_entry
+
+#undef TARGET_MODE_EXIT
+#define TARGET_MODE_EXIT ix86_mode_exit
+
+#undef TARGET_MODE_PRIORITY
+#define TARGET_MODE_PRIORITY ix86_mode_priority
+
struct gcc_target targetm = TARGET_INITIALIZER;
\f
#include "gt-i386.h"
#define NUM_MODES_FOR_MODE_SWITCHING \
{ AVX_U128_ANY, I387_CW_ANY, I387_CW_ANY, I387_CW_ANY, I387_CW_ANY }
-/* ENTITY is an integer specifying a mode-switched entity. If
- `OPTIMIZE_MODE_SWITCHING' is defined, you must define this macro to
- return an integer value not larger than the corresponding element
- in `NUM_MODES_FOR_MODE_SWITCHING', to denote the mode that ENTITY
- must be switched into prior to the execution of INSN. */
-
-#define MODE_NEEDED(ENTITY, I) ix86_mode_needed ((ENTITY), (I))
-
-/* If this macro is defined, it is evaluated for every INSN during
- mode switching. It determines the mode that an insn results in (if
- different from the incoming mode). */
-
-#define MODE_AFTER(ENTITY, MODE, I) ix86_mode_after ((ENTITY), (MODE), (I))
-
-/* If this macro is defined, it is evaluated for every ENTITY that
- needs mode switching. It should evaluate to an integer, which is
- a mode that ENTITY is assumed to be switched to at function entry. */
-
-#define MODE_ENTRY(ENTITY) ix86_mode_entry (ENTITY)
-
-/* If this macro is defined, it is evaluated for every ENTITY that
- needs mode switching. It should evaluate to an integer, which is
- a mode that ENTITY is assumed to be switched to at function exit. */
-
-#define MODE_EXIT(ENTITY) ix86_mode_exit (ENTITY)
-
-/* This macro specifies the order in which modes for ENTITY are
- processed. 0 is the highest priority. */
-
-#define MODE_PRIORITY_TO_MODE(ENTITY, N) (N)
-
-/* Generate one or more insns to set ENTITY to MODE. HARD_REG_LIVE
- is the set of hard registers live at the point where the insn(s)
- are to be inserted. */
-
-#define EMIT_MODE_SET(ENTITY, MODE, HARD_REGS_LIVE) \
- ix86_emit_mode_set ((ENTITY), (MODE), (HARD_REGS_LIVE))
\f
/* Avoid renaming of stack registers, as doing so in combination with
scheduling just increases amount of live registers at time and in
static int calc_live_regs (HARD_REG_SET *);
static HOST_WIDE_INT rounded_frame_size (int);
static bool sh_frame_pointer_required (void);
+static void sh_emit_mode_set (int, int, HARD_REG_SET);
+static int sh_mode_needed (int, rtx);
+static int sh_mode_after (int, int, rtx);
+static int sh_mode_entry (int);
+static int sh_mode_exit (int);
+static int sh_mode_priority (int entity, int n);
+
static rtx mark_constant_pool_use (rtx);
static tree sh_handle_interrupt_handler_attribute (tree *, tree, tree,
int, bool *);
#undef TARGET_FRAME_POINTER_REQUIRED
#define TARGET_FRAME_POINTER_REQUIRED sh_frame_pointer_required
+#undef TARGET_MODE_EMIT
+#define TARGET_MODE_EMIT sh_emit_mode_set
+
+#undef TARGET_MODE_NEEDED
+#define TARGET_MODE_NEEDED sh_mode_needed
+
+#undef TARGET_MODE_AFTER
+#define TARGET_MODE_AFTER sh_mode_after
+
+#undef TARGET_MODE_ENTRY
+#define TARGET_MODE_ENTRY sh_mode_entry
+
+#undef TARGET_MODE_EXIT
+#define TARGET_MODE_EXIT sh_mode_exit
+
+#undef TARGET_MODE_PRIORITY
+#define TARGET_MODE_PRIORITY sh_mode_priority
+
/* Return regmode weight for insn. */
#define INSN_REGMODE_WEIGHT(INSN, MODE)\
regmode_weight[((MODE) == SImode) ? 0 : 1][INSN_UID (INSN)]
return NULL_RTX;
}
+static void
+sh_emit_mode_set (int entity ATTRIBUTE_UNUSED, int mode,
+ HARD_REG_SET regs_live)
+{
+ fpscr_set_from_mem (mode, regs_live);
+}
+
+static int
+sh_mode_needed (int entity ATTRIBUTE_UNUSED, rtx insn)
+{
+ return recog_memoized (insn) >= 0 ? get_attr_fp_mode (insn) : FP_MODE_NONE;
+}
+
+static int
+sh_mode_after (int entity ATTRIBUTE_UNUSED, int mode, rtx insn)
+{
+ if (TARGET_HITACHI && recog_memoized (insn) >= 0 &&
+ get_attr_fp_set (insn) != FP_SET_NONE)
+ return (int) get_attr_fp_set (insn);
+ else
+ return mode;
+}
+
+static int
+sh_mode_entry (int entity ATTRIBUTE_UNUSED)
+{
+ return NORMAL_MODE (entity);
+}
+
+static int
+sh_mode_exit (int entity ATTRIBUTE_UNUSED)
+{
+ return sh_cfun_attr_renesas_p () ? FP_MODE_NONE : NORMAL_MODE (entity);
+}
+
+static int
+sh_mode_priority (int entity ATTRIBUTE_UNUSED, int n)
+{
+ return ((TARGET_FPU_SINGLE != 0) ^ (n) ? FP_MODE_SINGLE : FP_MODE_DOUBLE);
+}
+
#include "gt-sh.h"
? (TARGET_FMOVD ? FP_MODE_DOUBLE : FP_MODE_NONE) \
: ACTUAL_NORMAL_MODE (ENTITY))
-#define MODE_ENTRY(ENTITY) NORMAL_MODE (ENTITY)
-
-#define MODE_EXIT(ENTITY) \
- (sh_cfun_attr_renesas_p () ? FP_MODE_NONE : NORMAL_MODE (ENTITY))
-
#define EPILOGUE_USES(REGNO) ((TARGET_SH2E || TARGET_SH4) \
&& (REGNO) == FPSCR_REG)
-#define MODE_NEEDED(ENTITY, INSN) \
- (recog_memoized (INSN) >= 0 \
- ? get_attr_fp_mode (INSN) \
- : FP_MODE_NONE)
-
-#define MODE_AFTER(ENTITY, MODE, INSN) \
- (TARGET_HITACHI \
- && recog_memoized (INSN) >= 0 \
- && get_attr_fp_set (INSN) != FP_SET_NONE \
- ? (int) get_attr_fp_set (INSN) \
- : (MODE))
-
-#define MODE_PRIORITY_TO_MODE(ENTITY, N) \
- ((TARGET_FPU_SINGLE != 0) ^ (N) ? FP_MODE_SINGLE : FP_MODE_DOUBLE)
-
-#define EMIT_MODE_SET(ENTITY, MODE, HARD_REGS_LIVE) \
- fpscr_set_from_mem ((MODE), (HARD_REGS_LIVE))
-
#define MD_CAN_REDIRECT_BRANCH(INSN, SEQ) \
sh_can_redirect_branch ((INSN), (SEQ))
which entities actually need it. @code{OPTIMIZE_MODE_SWITCHING} should
return nonzero for any @var{entity} that needs mode-switching.
If you define this macro, you also have to define
-@code{NUM_MODES_FOR_MODE_SWITCHING}, @code{MODE_NEEDED},
-@code{MODE_PRIORITY_TO_MODE} and @code{EMIT_MODE_SET}.
-@code{MODE_AFTER}, @code{MODE_ENTRY}, and @code{MODE_EXIT}
+@code{NUM_MODES_FOR_MODE_SWITCHING}, @code{TARGET_MODE_NEEDED},
+@code{TARGET_MODE_PRIORITY} and @code{TARGET_MODE_EMIT}.
+@code{TARGET_MODE_AFTER}, @code{TARGET_MODE_ENTRY}, and @code{TARGET_MODE_EXIT}
are optional.
@end defmac
switch is needed / supplied.
@end defmac
-@defmac MODE_NEEDED (@var{entity}, @var{insn})
-@var{entity} is an integer specifying a mode-switched entity. If
-@code{OPTIMIZE_MODE_SWITCHING} is defined, you must define this macro to
-return an integer value not larger than the corresponding element in
-@code{NUM_MODES_FOR_MODE_SWITCHING}, to denote the mode that @var{entity} must
-be switched into prior to the execution of @var{insn}.
-@end defmac
+@deftypefn {Target Hook} void TARGET_MODE_EMIT (int @var{entity}, int @var{mode}, HARD_REG_SET @var{regs_live})
+Generate one or more insns to set @var{entity} to @var{mode}. @var{hard_reg_live} is the set of hard registers live at the point where the insn(s) are to be inserted. Sets of a lower numbered entity will be emitted before sets of a higher numbered entity to a mode of the same or lower priority.
+@end deftypefn
-@defmac MODE_AFTER (@var{entity}, @var{mode}, @var{insn})
-@var{entity} is an integer specifying a mode-switched entity. If
-this macro is defined, it is evaluated for every @var{insn} during
-mode switching. It determines the mode that an insn results in (if
-different from the incoming mode).
-@end defmac
+@deftypefn {Target Hook} int TARGET_MODE_NEEDED (int @var{entity}, rtx @var{insn})
+@var{entity} is an integer specifying a mode-switched entity. If @code{OPTIMIZE_MODE_SWITCHING} is defined, you must define this macro to return an integer value not larger than the corresponding element in @code{NUM_MODES_FOR_MODE_SWITCHING}, to denote the mode that @var{entity} must be switched into prior to the execution of @var{insn}.
+@end deftypefn
-@defmac MODE_ENTRY (@var{entity})
-If this macro is defined, it is evaluated for every @var{entity} that needs
-mode switching. It should evaluate to an integer, which is a mode that
-@var{entity} is assumed to be switched to at function entry. If @code{MODE_ENTRY}
-is defined then @code{MODE_EXIT} must be defined.
-@end defmac
+@deftypefn {Target Hook} int TARGET_MODE_AFTER (int @var{entity}, int @var{mode}, rtx @var{insn})
+@var{entity} is an integer specifying a mode-switched entity. If this macro is defined, it is evaluated for every @var{insn} during mode switching. It determines the mode that an insn results in (if different from the incoming mode).
+@end deftypefn
-@defmac MODE_EXIT (@var{entity})
-If this macro is defined, it is evaluated for every @var{entity} that needs
-mode switching. It should evaluate to an integer, which is a mode that
-@var{entity} is assumed to be switched to at function exit. If @code{MODE_EXIT}
-is defined then @code{MODE_ENTRY} must be defined.
-@end defmac
+@deftypefn {Target Hook} int TARGET_MODE_ENTRY (int @var{entity})
+If this macro is defined, it is evaluated for every @var{entity} that needs mode switching. It should evaluate to an integer, which is a mode that @var{entity} is assumed to be switched to at function entry. If @code{TARGET_MODE_ENTRY} is defined then @code{TARGET_MODE_EXIT} must be defined.
+@end deftypefn
-@defmac MODE_PRIORITY_TO_MODE (@var{entity}, @var{n})
-This macro specifies the order in which modes for @var{entity} are processed.
-0 is the highest priority, @code{NUM_MODES_FOR_MODE_SWITCHING[@var{entity}] - 1} the
-lowest. The value of the macro should be an integer designating a mode
-for @var{entity}. For any fixed @var{entity}, @code{mode_priority_to_mode}
-(@var{entity}, @var{n}) shall be a bijection in 0 @dots{}
-@code{num_modes_for_mode_switching[@var{entity}] - 1}.
-@end defmac
+@deftypefn {Target Hook} int TARGET_MODE_EXIT (int @var{entity})
+If this macro is defined, it is evaluated for every @var{entity} that needs mode switching. It should evaluate to an integer, which is a mode that @var{entity} is assumed to be switched to at function exit. If @code{TARGET_MODE_EXIT} is defined then @code{TARGET_MODE_ENTRY} must be defined.
+@end deftypefn
-@defmac EMIT_MODE_SET (@var{entity}, @var{mode}, @var{hard_regs_live})
-Generate one or more insns to set @var{entity} to @var{mode}.
-@var{hard_reg_live} is the set of hard registers live at the point where
-the insn(s) are to be inserted.
-Sets of a lower numbered entity will be emitted before sets of a higher
-numbered entity to a mode of the same or lower priority.
-@end defmac
+@deftypefn {Target Hook} int TARGET_MODE_PRIORITY (int @var{entity}, int @var{n})
+This macro specifies the order in which modes for @var{entity} are processed. 0 is the highest priority, @code{NUM_MODES_FOR_MODE_SWITCHING[@var{entity}] - 1} the lowest. The value of the macro should be an integer designating a mode for @var{entity}. For any fixed @var{entity}, @code{mode_priority} (@var{entity}, @var{n}) shall be a bijection in 0 @dots{} @code{num_modes_for_mode_switching[@var{entity}] - 1}.
+@end deftypefn
@node Target Attributes
@section Defining target-specific uses of @code{__attribute__}
which entities actually need it. @code{OPTIMIZE_MODE_SWITCHING} should
return nonzero for any @var{entity} that needs mode-switching.
If you define this macro, you also have to define
-@code{NUM_MODES_FOR_MODE_SWITCHING}, @code{MODE_NEEDED},
-@code{MODE_PRIORITY_TO_MODE} and @code{EMIT_MODE_SET}.
-@code{MODE_AFTER}, @code{MODE_ENTRY}, and @code{MODE_EXIT}
+@code{NUM_MODES_FOR_MODE_SWITCHING}, @code{TARGET_MODE_NEEDED},
+@code{TARGET_MODE_PRIORITY} and @code{TARGET_MODE_EMIT}.
+@code{TARGET_MODE_AFTER}, @code{TARGET_MODE_ENTRY}, and @code{TARGET_MODE_EXIT}
are optional.
@end defmac
switch is needed / supplied.
@end defmac
-@defmac MODE_NEEDED (@var{entity}, @var{insn})
-@var{entity} is an integer specifying a mode-switched entity. If
-@code{OPTIMIZE_MODE_SWITCHING} is defined, you must define this macro to
-return an integer value not larger than the corresponding element in
-@code{NUM_MODES_FOR_MODE_SWITCHING}, to denote the mode that @var{entity} must
-be switched into prior to the execution of @var{insn}.
-@end defmac
+@hook TARGET_MODE_EMIT
-@defmac MODE_AFTER (@var{entity}, @var{mode}, @var{insn})
-@var{entity} is an integer specifying a mode-switched entity. If
-this macro is defined, it is evaluated for every @var{insn} during
-mode switching. It determines the mode that an insn results in (if
-different from the incoming mode).
-@end defmac
+@hook TARGET_MODE_NEEDED
-@defmac MODE_ENTRY (@var{entity})
-If this macro is defined, it is evaluated for every @var{entity} that needs
-mode switching. It should evaluate to an integer, which is a mode that
-@var{entity} is assumed to be switched to at function entry. If @code{MODE_ENTRY}
-is defined then @code{MODE_EXIT} must be defined.
-@end defmac
+@hook TARGET_MODE_AFTER
-@defmac MODE_EXIT (@var{entity})
-If this macro is defined, it is evaluated for every @var{entity} that needs
-mode switching. It should evaluate to an integer, which is a mode that
-@var{entity} is assumed to be switched to at function exit. If @code{MODE_EXIT}
-is defined then @code{MODE_ENTRY} must be defined.
-@end defmac
+@hook TARGET_MODE_ENTRY
-@defmac MODE_PRIORITY_TO_MODE (@var{entity}, @var{n})
-This macro specifies the order in which modes for @var{entity} are processed.
-0 is the highest priority, @code{NUM_MODES_FOR_MODE_SWITCHING[@var{entity}] - 1} the
-lowest. The value of the macro should be an integer designating a mode
-for @var{entity}. For any fixed @var{entity}, @code{mode_priority_to_mode}
-(@var{entity}, @var{n}) shall be a bijection in 0 @dots{}
-@code{num_modes_for_mode_switching[@var{entity}] - 1}.
-@end defmac
+@hook TARGET_MODE_EXIT
-@defmac EMIT_MODE_SET (@var{entity}, @var{mode}, @var{hard_regs_live})
-Generate one or more insns to set @var{entity} to @var{mode}.
-@var{hard_reg_live} is the set of hard registers live at the point where
-the insn(s) are to be inserted.
-Sets of a lower numbered entity will be emitted before sets of a higher
-numbered entity to a mode of the same or lower priority.
-@end defmac
+@hook TARGET_MODE_PRIORITY
@node Target Attributes
@section Defining target-specific uses of @code{__attribute__}
add_to_hard_reg_set ((HARD_REG_SET *) live, GET_MODE (reg), regno);
}
-/* Make sure if MODE_ENTRY is defined the MODE_EXIT is defined
- and vice versa. */
-#if defined (MODE_ENTRY) != defined (MODE_EXIT)
- #error "Both MODE_ENTRY and MODE_EXIT must be defined"
-#endif
-
-#if defined (MODE_ENTRY) && defined (MODE_EXIT)
/* Split the fallthrough edge to the exit block, so that we can note
that there NORMAL_MODE is required. Return the new block if it's
inserted before the exit block. Otherwise return null. */
for (j = n_entities - 1; j >= 0; j--)
{
int e = entity_map[j];
- int mode = MODE_NEEDED (e, return_copy);
+ int mode =
+ targetm.mode_switching.needed (e, return_copy);
- if (mode != num_modes[e] && mode != MODE_EXIT (e))
+ if (mode != num_modes[e]
+ && mode != targetm.mode_switching.exit (e))
break;
}
if (j >= 0)
return pre_exit;
}
-#endif
/* Find all insns that need a particular mode setting, and insert the
necessary mode switches. Return true if we did work. */
int n_entities;
int max_num_modes = 0;
bool emitted ATTRIBUTE_UNUSED = false;
- basic_block post_entry ATTRIBUTE_UNUSED, pre_exit ATTRIBUTE_UNUSED;
+ basic_block post_entry = 0;
+ basic_block pre_exit = 0;
for (e = N_ENTITIES - 1, n_entities = 0; e >= 0; e--)
if (OPTIMIZE_MODE_SWITCHING (e))
/* Create the list of segments within each basic block.
If NORMAL_MODE is defined, allow for two extra
blocks split from the entry and exit block. */
-#if defined (MODE_ENTRY) && defined (MODE_EXIT)
- entry_exit_extra = 3;
-#endif
+ if (targetm.mode_switching.entry && targetm.mode_switching.exit)
+ entry_exit_extra = 3;
+
bb_info[n_entities]
= XCNEWVEC (struct bb_info,
last_basic_block_for_fn (cfun) + entry_exit_extra);
if (! n_entities)
return 0;
-#if defined (MODE_ENTRY) && defined (MODE_EXIT)
- /* Split the edge from the entry block, so that we can note that
- there NORMAL_MODE is supplied. */
- post_entry = split_edge (single_succ_edge (ENTRY_BLOCK_PTR_FOR_FN (cfun)));
- pre_exit = create_pre_exit (n_entities, entity_map, num_modes);
-#endif
+ /* Make sure if MODE_ENTRY is defined the MODE_EXIT is defined and vice versa. */
+ gcc_assert ((targetm.mode_switching.entry && targetm.mode_switching.exit)
+ || (!targetm.mode_switching.entry && !targetm.mode_switching.exit));
+
+ if (targetm.mode_switching.entry && targetm.mode_switching.exit)
+ {
+ /* Split the edge from the entry block, so that we can note that
+ there NORMAL_MODE is supplied. */
+ post_entry = split_edge (single_succ_edge (ENTRY_BLOCK_PTR_FOR_FN (cfun)));
+ pre_exit = create_pre_exit (n_entities, entity_map, num_modes);
+ }
df_analyze ();
{
if (INSN_P (insn))
{
- int mode = MODE_NEEDED (e, insn);
+ int mode = targetm.mode_switching.needed (e, insn);
rtx link;
if (mode != no_mode && mode != last_mode)
add_seginfo (info + bb->index, ptr);
bitmap_clear_bit (transp[bb->index], j);
}
-#ifdef MODE_AFTER
- last_mode = MODE_AFTER (e, last_mode, insn);
-#endif
+
+ if (targetm.mode_switching.after)
+ last_mode = targetm.mode_switching.after (e, last_mode, insn);
+
/* Update LIVE_NOW. */
for (link = REG_NOTES (insn); link; link = XEXP (link, 1))
if (REG_NOTE_KIND (link) == REG_DEAD)
bitmap_clear_bit (transp[bb->index], j);
}
}
-#if defined (MODE_ENTRY) && defined (MODE_EXIT)
- {
- int mode = MODE_ENTRY (e);
-
- if (mode != no_mode)
- {
- bb = post_entry;
-
- /* By always making this nontransparent, we save
- an extra check in make_preds_opaque. We also
- need this to avoid confusing pre_edge_lcm when
- antic is cleared but transp and comp are set. */
- bitmap_clear_bit (transp[bb->index], j);
-
- /* Insert a fake computing definition of MODE into entry
- blocks which compute no mode. This represents the mode on
- entry. */
- info[bb->index].computing = mode;
+ if (targetm.mode_switching.entry && targetm.mode_switching.exit)
+ {
+ int mode = targetm.mode_switching.entry (e);
- if (pre_exit)
- info[pre_exit->index].seginfo->mode = MODE_EXIT (e);
- }
- }
-#endif /* NORMAL_MODE */
+ if (mode != no_mode)
+ {
+ bb = post_entry;
+
+ /* By always making this nontransparent, we save
+ an extra check in make_preds_opaque. We also
+ need this to avoid confusing pre_edge_lcm when
+ antic is cleared but transp and comp are set. */
+ bitmap_clear_bit (transp[bb->index], j);
+
+ /* Insert a fake computing definition of MODE into entry
+ blocks which compute no mode. This represents the mode on
+ entry. */
+ info[bb->index].computing = mode;
+
+ if (pre_exit)
+ info[pre_exit->index].seginfo->mode =
+ targetm.mode_switching.exit (e);
+ }
+ }
}
kill = sbitmap_vector_alloc (last_basic_block_for_fn (cfun), n_entities);
bitmap_vector_clear (comp, last_basic_block_for_fn (cfun));
for (j = n_entities - 1; j >= 0; j--)
{
- int m = current_mode[j] = MODE_PRIORITY_TO_MODE (entity_map[j], i);
+ int m = current_mode[j] =
+ targetm.mode_switching.priority (entity_map[j], i);
struct bb_info *info = bb_info[j];
FOR_EACH_BB_FN (bb, cfun)
rtl_profile_for_edge (eg);
start_sequence ();
- EMIT_MODE_SET (entity_map[j], mode, live_at_edge);
+ targetm.mode_switching.emit (entity_map[j], mode, live_at_edge);
mode_set = get_insns ();
end_sequence ();
default_rtl_profile ();
rtl_profile_for_bb (bb);
start_sequence ();
- EMIT_MODE_SET (entity_map[j], ptr->mode, ptr->regs_live);
+ targetm.mode_switching.emit (entity_map[j],
+ ptr->mode,
+ ptr->regs_live);
mode_set = get_insns ();
end_sequence ();
if (need_commit)
commit_edge_insertions ();
-#if defined (MODE_ENTRY) && defined (MODE_EXIT)
- cleanup_cfg (CLEANUP_NO_INSN_DEL);
-#else
- if (!need_commit && !emitted)
+ if (targetm.mode_switching.entry && targetm.mode_switching.exit)
+ cleanup_cfg (CLEANUP_NO_INSN_DEL);
+ else if (!need_commit && !emitted)
return 0;
-#endif
return 1;
}
/* Leave the boolean fields at the end. */
+/* Functions related to mode switching. */
+#undef HOOK_PREFIX
+#define HOOK_PREFIX "TARGET_MODE_"
+HOOK_VECTOR (TARGET_TOGGLE_, mode_switching)
+
+DEFHOOK
+(emit,
+ "Generate one or more insns to set @var{entity} to @var{mode}. @var{hard_reg_live} is the set of hard registers live at the point where the insn(s) are to be inserted. Sets of a lower numbered entity will be emitted before sets of a higher numbered entity to a mode of the same or lower priority.",
+ void, (int entity, int mode, HARD_REG_SET regs_live), NULL)
+
+DEFHOOK
+(needed,
+ "@var{entity} is an integer specifying a mode-switched entity. If @code{OPTIMIZE_MODE_SWITCHING} is defined, you must define this macro to return an integer value not larger than the corresponding element in @code{NUM_MODES_FOR_MODE_SWITCHING}, to denote the mode that @var{entity} must be switched into prior to the execution of @var{insn}.",
+ int, (int entity, rtx insn), NULL)
+
+DEFHOOK
+(after,
+ "@var{entity} is an integer specifying a mode-switched entity. If this macro is defined, it is evaluated for every @var{insn} during mode switching. It determines the mode that an insn results in (if different from the incoming mode).",
+ int, (int entity, int mode, rtx insn), NULL)
+
+DEFHOOK
+(entry,
+ "If this macro is defined, it is evaluated for every @var{entity} that needs mode switching. It should evaluate to an integer, which is a mode that @var{entity} is assumed to be switched to at function entry. If @code{TARGET_MODE_ENTRY} is defined then @code{TARGET_MODE_EXIT} must be defined.",
+ int, (int entity), NULL)
+
+DEFHOOK
+(exit,
+ "If this macro is defined, it is evaluated for every @var{entity} that needs mode switching. It should evaluate to an integer, which is a mode that @var{entity} is assumed to be switched to at function exit. If @code{TARGET_MODE_EXIT} is defined then @code{TARGET_MODE_ENTRY} must be defined.",
+ int, (int entity), NULL)
+
+DEFHOOK
+(priority,
+ "This macro specifies the order in which modes for @var{entity} are processed. 0 is the highest priority, @code{NUM_MODES_FOR_MODE_SWITCHING[@var{entity}] - 1} the lowest. The value of the macro should be an integer designating a mode for @var{entity}. For any fixed @var{entity}, @code{mode_priority} (@var{entity}, @var{n}) shall be a bijection in 0 @dots{} @code{num_modes_for_mode_switching[@var{entity}] - 1}.",
+ int, (int entity, int n), NULL)
+
+HOOK_VECTOR_END (mode_switching)
+
/* Close the 'struct gcc_target' definition. */
HOOK_VECTOR_END (C90_EMPTY_HACK)
+
#include "insn-modes.h"
#include "insn-codes.h"
#include "wide-int.h"
+#include "tm.h"
+#include "hard-reg-set.h"
#ifdef ENABLE_CHECKING
projects / gcc.git / commitdiff