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jitinline.c
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6008 lines (5247 loc) · 209 KB
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#include "schpriv.h"
#include "schmach.h"
#include "future.h"
#ifdef MZ_USE_JIT
#include "jit.h"
static Scheme_Object *extract_one_cc_mark_to_tag(Scheme_Object *, Scheme_Object *, Scheme_Object *);
static Scheme_Object *equal_as_bool(Scheme_Object *a, Scheme_Object *b);
#define JITINLINE_TS_PROCS
#ifndef CAN_INLINE_ALLOC
# define JIT_BOX_TS_PROCS
#endif
#include "jit_ts.c"
static Scheme_Object *equal_as_bool(Scheme_Object *a, Scheme_Object *b) XFORM_ASSERT_NO_CONVERSION
{
if (scheme_equal(a, b))
return scheme_true;
else
return scheme_false;
}
#ifdef MZ_USE_FUTURES
static Scheme_Object *ts_scheme_make_fsemaphore(int argc, Scheme_Object **argv)
XFORM_SKIP_PROC
{
if (scheme_use_rtcall) {
return scheme_rtcall_make_fsemaphore(argv[0]);
}
return scheme_make_fsemaphore_inl(argv[0]);
}
#else
# define ts_scheme_make_fsemaphore scheme_make_fsemaphore
#endif
#ifdef CAN_INLINE_ALLOC
# ifdef JIT_USE_FP_OPS
static void call_flrandom(Scheme_Object *rs) {
scheme_jit_save_fp = scheme_double_random(rs);
}
# endif
#endif
static Scheme_Object *extract_one_cc_mark_to_tag(Scheme_Object *mark_set,
Scheme_Object *key,
Scheme_Object *prompt_tag)
XFORM_SKIP_PROC
{
/* wrapper on scheme_extract_one_cc_mark_to_tag() to convert NULL to false */
Scheme_Object *r;
if (mark_set && !SAME_TYPE(SCHEME_TYPE(mark_set), scheme_cont_mark_set_type)) {
Scheme_Object *a[2];
a[0] = mark_set;
a[1] = key;
scheme_wrong_contract("continuation-mark-set-first", "(or/c continuation-mark-set? #f)", 0, 2, a);
return NULL;
}
r = scheme_extract_one_cc_mark_to_tag(mark_set, key, prompt_tag);
if (!r) return scheme_false;
return r;
}
static Scheme_Object *cont_mark_set_first_try_fast(Scheme_Object *cms, Scheme_Object *key)
XFORM_SKIP_PROC
{
Scheme_Object *nullableCms;
Scheme_Object *prompt_tag;
if (key == scheme_parameterization_key || key == scheme_break_enabled_key)
prompt_tag = NULL;
else
prompt_tag = SCHEME_PTR_VAL(scheme_default_prompt_tag);
nullableCms = SCHEME_FALSEP(cms) ? NULL : cms;
/*Fast path here */
if (!nullableCms) {
intptr_t findpos, bottom, startpos, minbottom;
intptr_t pos;
Scheme_Object *val = NULL;
Scheme_Cont_Mark *seg;
Scheme_Thread *p = scheme_current_thread;
startpos = (intptr_t)MZ_CONT_MARK_STACK;
if (!p->cont_mark_stack_segments)
startpos = 0;
bottom = p->cont_mark_stack_bottom;
findpos = startpos;
minbottom = findpos - 16;
if (bottom < minbottom)
bottom = minbottom;
while (findpos-- > bottom) {
seg = p->cont_mark_stack_segments[findpos >> SCHEME_LOG_MARK_SEGMENT_SIZE];
pos = findpos & SCHEME_MARK_SEGMENT_MASK;
if (SAME_OBJ(seg[pos].key, key)) {
val = seg[pos].val;
break;
} else if (SAME_OBJ(seg[pos].key, prompt_tag)) {
break;
}
}
if (val) {
return val;
}
}
/* Otherwise, slow path. This must be a "tail call", because the
calling context may be captured as a lightweight continuation. */
return ts_extract_one_cc_mark_to_tag(nullableCms, key, prompt_tag);
}
static int check_val_struct_prim(Scheme_Object *p, int arity)
{
if (p && SCHEME_PRIMP(p)) {
int t = (((Scheme_Primitive_Proc *)p)->pp.flags & SCHEME_PRIM_OTHER_TYPE_MASK);
if (t == SCHEME_PRIM_STRUCT_TYPE_SIMPLE_CONSTR) {
Scheme_Struct_Type *t;
t = (Scheme_Struct_Type *)SCHEME_PRIM_CLOSURE_ELS(p)[0];
if ((arity == t->num_islots)
&& (arity < JIT_MAX_STRUCT_FIELD_INLINE_COUNT)) {
return INLINE_STRUCT_PROC_CONSTR;
}
return 0;
} else if (arity == 1) {
if (t == SCHEME_PRIM_STRUCT_TYPE_PRED)
return INLINE_STRUCT_PROC_PRED;
if (t == SCHEME_PRIM_STRUCT_TYPE_INDEXED_GETTER)
return INLINE_STRUCT_PROC_GET;
else if (t == SCHEME_PRIM_TYPE_STRUCT_PROP_GETTER)
return INLINE_STRUCT_PROC_PROP_GET;
else if (t == SCHEME_PRIM_STRUCT_TYPE_STRUCT_PROP_PRED)
return INLINE_STRUCT_PROC_PROP_PRED;
} else if (arity == 2) {
if (t == SCHEME_PRIM_STRUCT_TYPE_INDEXED_SETTER)
return INLINE_STRUCT_PROC_SET;
else if (t == SCHEME_PRIM_TYPE_STRUCT_PROP_GETTER)
return INLINE_STRUCT_PROC_PROP_GET_W_DEFAULT;
}
}
return 0;
}
static int inlineable_struct_prim(Scheme_Object *o, mz_jit_state *jitter, int extra_push, int arity)
{
if (jitter->nc) {
if (SAME_TYPE(SCHEME_TYPE(o), scheme_toplevel_type)) {
Scheme_Object *p;
p = scheme_extract_global(o, jitter->nc, 0);
p = ((Scheme_Bucket *)p)->val;
return check_val_struct_prim(p, arity);
} else if (SAME_TYPE(SCHEME_TYPE(o), scheme_static_toplevel_type)) {
Scheme_Object *p;
p = SCHEME_STATIC_TOPLEVEL_PREFIX(o)->a[SCHEME_TOPLEVEL_POS(o)];
p = ((Scheme_Bucket *)p)->val;
return check_val_struct_prim(p, arity);
} else if (SAME_TYPE(SCHEME_TYPE(o), scheme_local_type)) {
Scheme_Object *p;
p = scheme_extract_closure_local(o, jitter, extra_push, 0);
return check_val_struct_prim(p, arity);
}
}
return check_val_struct_prim(o, arity);
}
int scheme_inlined_unary_prim(Scheme_Object *o, Scheme_Object *_app, mz_jit_state *jitter)
{
if (SCHEME_PRIMP(o)
&& (SCHEME_PRIM_PROC_OPT_FLAGS(o) & SCHEME_PRIM_IS_UNARY_INLINED))
return 1;
if (inlineable_struct_prim(o, jitter, 1, 1))
return 1;
return 0;
}
int scheme_inlined_binary_prim(Scheme_Object *o, Scheme_Object *_app, mz_jit_state *jitter)
{
return ((SCHEME_PRIMP(o)
&& (SCHEME_PRIM_PROC_OPT_FLAGS(o) & SCHEME_PRIM_IS_BINARY_INLINED))
|| inlineable_struct_prim(o, jitter, 2, 2));
}
int scheme_inlined_nary_prim(Scheme_Object *o, Scheme_Object *_app, mz_jit_state *jitter)
{
int n = ((Scheme_App_Rec *)_app)->num_args;
return ((SCHEME_PRIMP(o)
&& (SCHEME_PRIM_PROC_OPT_FLAGS(o) & SCHEME_PRIM_IS_NARY_INLINED)
&& (n >= ((Scheme_Primitive_Proc *)o)->mina)
&& (n <= ((Scheme_Primitive_Proc *)o)->mu.maxa))
|| inlineable_struct_prim(o, jitter, n, n));
}
static int generate_inlined_constant_test(mz_jit_state *jitter, Scheme_App2_Rec *app,
Scheme_Object *cnst, Scheme_Object *cnst2,
Branch_Info *for_branch, int branch_short,
int dest)
/* de-sync'd ok */
{
GC_CAN_IGNORE jit_insn *ref, *ref2;
LOG_IT(("inlined %s\n", ((Scheme_Primitive_Proc *)app->rator)->name));
mz_runstack_skipped(jitter, 1);
scheme_generate_non_tail(app->rand, jitter, 0, 1, 0);
CHECK_LIMIT();
mz_runstack_unskipped(jitter, 1);
mz_rs_sync();
__START_SHORT_JUMPS__(branch_short);
if (for_branch) {
scheme_prepare_branch_jump(jitter, for_branch);
CHECK_LIMIT();
}
if (cnst2) {
ref2 = jit_beqi_p(jit_forward(), JIT_R0, cnst);
ref = jit_bnei_p(jit_forward(), JIT_R0, cnst2);
mz_patch_branch(ref2);
} else {
ref = jit_bnei_p(jit_forward(), JIT_R0, cnst);
}
if (for_branch) {
scheme_add_branch_false(for_branch, ref);
scheme_branch_for_true(jitter, for_branch);
CHECK_LIMIT();
} else {
(void)jit_movi_p(dest, scheme_true);
ref2 = jit_jmpi(jit_forward());
mz_patch_branch(ref);
(void)jit_movi_p(dest, scheme_false);
mz_patch_ucbranch(ref2);
}
__END_SHORT_JUMPS__(branch_short);
return 1;
}
/* -1 for can_chaperone for `chaperone?` test */
static int generate_inlined_type_test(mz_jit_state *jitter, Scheme_App2_Rec *app,
Scheme_Type lo_ty, Scheme_Type hi_ty, int can_chaperone,
Branch_Info *for_branch, int branch_short,
int dest)
{
GC_CAN_IGNORE jit_insn *ref, *ref2, *ref3, *ref4, *ref5;
int int_ok, reg_valid;
int_ok = ((lo_ty <= scheme_integer_type) && (scheme_integer_type <= hi_ty));
LOG_IT(("inlined %s\n", ((Scheme_Primitive_Proc *)app->rator)->name));
mz_runstack_skipped(jitter, 1);
scheme_generate_non_tail(app->rand, jitter, 0, 1, 0);
CHECK_LIMIT();
mz_runstack_unskipped(jitter, 1);
mz_rs_sync();
__START_SHORT_JUMPS__(branch_short);
reg_valid = 0;
if (for_branch) {
reg_valid = mz_CURRENT_REG_STATUS_VALID();
scheme_prepare_branch_jump(jitter, for_branch);
CHECK_LIMIT();
}
if ((lo_ty == scheme_integer_type) && (scheme_integer_type == hi_ty)) {
ref3 = jit_bmci_ul(jit_forward(), JIT_R0, 0x1);
ref4 = NULL;
ref = NULL;
ref5 = NULL;
#ifdef jit_bxnei_s
} else if (!can_chaperone && (lo_ty == hi_ty)) {
ref = jit_bmsi_ul(jit_forward(), JIT_R0, 0x1);
ref3 = jit_bxnei_s(jit_forward(), JIT_R0, lo_ty);
ref4 = NULL;
ref5 = NULL;
#endif
} else {
ref = jit_bmsi_ul(jit_forward(), JIT_R0, 0x1);
jit_ldxi_s(JIT_R1, JIT_R0, &((Scheme_Object *)0x0)->type);
if (can_chaperone > 0) {
__START_INNER_TINY__(branch_short);
ref3 = jit_bnei_i(jit_forward(), JIT_R1, scheme_chaperone_type);
jit_ldxi_p(JIT_R1, JIT_R0, (intptr_t)&((Scheme_Chaperone *)0x0)->val);
jit_ldxi_s(JIT_R1, JIT_R1, &((Scheme_Object *)0x0)->type);
mz_patch_branch(ref3);
CHECK_LIMIT();
__END_INNER_TINY__(branch_short);
}
if (lo_ty == hi_ty) {
ref3 = jit_bnei_i(jit_forward(), JIT_R1, lo_ty);
ref4 = NULL;
} else {
ref3 = jit_blti_i(jit_forward(), JIT_R1, lo_ty);
ref4 = jit_bgti_i(jit_forward(), JIT_R1, hi_ty);
}
if (can_chaperone < 0) {
/* Make sure it's not a impersonator */
jit_ldxi_s(JIT_R1, JIT_R0, (intptr_t)&SCHEME_CHAPERONE_FLAGS((Scheme_Chaperone *)0x0));
ref5 = jit_bmsi_i(jit_forward(), JIT_R1, SCHEME_CHAPERONE_IS_IMPERSONATOR);
} else
ref5 = NULL;
if (int_ok) {
mz_patch_branch(ref);
}
}
if (for_branch) {
if (!int_ok) {
scheme_add_branch_false(for_branch, ref);
}
scheme_add_branch_false(for_branch, ref3);
scheme_add_branch_false(for_branch, ref4);
scheme_add_branch_false(for_branch, ref5);
/* In case true is a fall-through, note that the test
didn't disturb R0: */
mz_SET_R0_STATUS_VALID(reg_valid);
scheme_branch_for_true(jitter, for_branch);
CHECK_LIMIT();
} else {
(void)jit_movi_p(dest, scheme_true);
ref2 = jit_jmpi(jit_forward());
if (!int_ok) {
mz_patch_branch(ref);
}
mz_patch_branch(ref3);
if (ref4) {
mz_patch_branch(ref4);
}
if (ref5) {
mz_patch_branch(ref5);
}
(void)jit_movi_p(dest, scheme_false);
mz_patch_ucbranch(ref2);
}
__END_SHORT_JUMPS__(branch_short);
return 1;
}
static int generate_inlined_interned_char_test(mz_jit_state *jitter, Scheme_App2_Rec *app,
Branch_Info *for_branch, int branch_short,
int dest)
{
GC_CAN_IGNORE jit_insn *ref1, *ref2, *ref3;
int reg_valid;
LOG_IT(("inlined interned-char?\n"));
mz_runstack_skipped(jitter, 1);
scheme_generate_non_tail(app->rand, jitter, 0, 1, 0);
CHECK_LIMIT();
mz_runstack_unskipped(jitter, 1);
mz_rs_sync();
__START_SHORT_JUMPS__(branch_short);
reg_valid = 0;
if (for_branch) {
reg_valid = mz_CURRENT_REG_STATUS_VALID();
scheme_prepare_branch_jump(jitter, for_branch);
CHECK_LIMIT();
}
/* Test that it's not a fixnum */
ref1 = jit_bmsi_ul(jit_forward(), JIT_R0, 0x1);
/* Test that it's a char */
#ifdef jit_bxnei_s
ref2 = jit_bxnei_s(jit_forward(), JIT_R0, scheme_char_type);
#else
jit_ldxi_s(JIT_R1, JIT_R0, &((Scheme_Object *)0x0)->type);
ref2 = jit_bnei_i(jit_forward(), JIT_R1, scheme_char_type);
#endif
/* Test that it's < 256 */
jit_ldxi_s(JIT_R1, JIT_R0, &SCHEME_CHAR_VAL(0x0));
ref3 = jit_blti_i(jit_forward(), JIT_R1, 256);
if (for_branch) {
scheme_add_branch_false(for_branch, ref1);
scheme_add_branch_false(for_branch, ref2);
scheme_add_branch_false(for_branch, ref3);
/* Note that the test didn't disturb R0: */
mz_SET_R0_STATUS_VALID(reg_valid);
scheme_branch_for_true(jitter, for_branch);
CHECK_LIMIT();
} else {
GC_CAN_IGNORE jit_insn *ref_ucfinish;
(void)jit_movi_p(dest, scheme_true);
ref_ucfinish = jit_jmpi(jit_forward());
mz_patch_branch(ref1);
mz_patch_branch(ref2);
mz_patch_branch(ref3);
(void)jit_movi_p(dest, scheme_false);
mz_patch_ucbranch(ref_ucfinish);
}
__END_SHORT_JUMPS__(branch_short);
return 1;
}
static int generate_inlined_immutable_test(mz_jit_state *jitter, Scheme_App2_Rec *app,
Branch_Info *for_branch, int branch_short,
int dest)
{
GC_CAN_IGNORE jit_insn *ref, *ref2, *ref3, *ref4, *ref5;
GC_CAN_IGNORE jit_insn *ref6, *ref7, *ref8, *ref9;
LOG_IT(("inlined %s\n", ((Scheme_Primitive_Proc *)app->rator)->name));
mz_runstack_skipped(jitter, 1);
scheme_generate_non_tail(app->rand, jitter, 0, 1, 0);
CHECK_LIMIT();
mz_runstack_unskipped(jitter, 1);
mz_rs_sync();
__START_SHORT_JUMPS__(branch_short);
/* Note that we distrurb R0 in the case of a chaperone, so don't try
to save its status for a branch. */
if (for_branch) {
scheme_prepare_branch_jump(jitter, for_branch);
CHECK_LIMIT();
}
ref = jit_bmsi_ul(jit_forward(), JIT_R0, 0x1);
jit_ldxi_s(JIT_R1, JIT_R0, &((Scheme_Object *)0x0)->type);
__START_INNER_TINY__(branch_short);
ref3 = jit_bnei_i(jit_forward(), JIT_R1, scheme_chaperone_type);
jit_ldxi_p(JIT_R0, JIT_R0, (intptr_t)&((Scheme_Chaperone *)0x0)->val);
jit_ldxi_s(JIT_R1, JIT_R0, &((Scheme_Object *)0x0)->type);
mz_patch_branch(ref3);
__END_INNER_TINY__(branch_short);
CHECK_LIMIT();
/* check for immutable hash: */
__START_INNER_TINY__(branch_short);
ref3 = jit_blti_i(jit_forward(), JIT_R1, scheme_hash_tree_type);
__END_INNER_TINY__(branch_short);
ref4 = jit_blei_i(jit_forward(), JIT_R1, scheme_hash_tree_indirection_type);
__START_INNER_TINY__(branch_short);
mz_patch_branch(ref3);
__END_INNER_TINY__(branch_short);
ref5 = jit_beqi_i(jit_forward(), JIT_R1, scheme_vector_type);
ref6 = jit_beqi_i(jit_forward(), JIT_R1, scheme_char_string_type);
ref7 = jit_beqi_i(jit_forward(), JIT_R1, scheme_byte_string_type);
ref8 = jit_bnei_i(jit_forward(), JIT_R1, scheme_box_type);
CHECK_LIMIT();
/* still need to check for "immutable" flag */
mz_patch_branch(ref5);
mz_patch_branch(ref6);
mz_patch_branch(ref7);
jit_ldxi_s(JIT_R2, JIT_R0, &MZ_OPT_HASH_KEY((Scheme_Inclhash_Object *)0x0));
ref9 = jit_bmci_ul(jit_forward(), JIT_R2, 0x1);
/* is immutable if we get here */
mz_patch_branch(ref4);
if (for_branch) {
scheme_add_branch_false(for_branch, ref);
scheme_add_branch_false(for_branch, ref8);
scheme_add_branch_false(for_branch, ref9);
scheme_branch_for_true(jitter, for_branch);
} else {
(void)jit_movi_p(dest, scheme_true);
__START_INNER_TINY__(branch_short);
ref2 = jit_jmpi(jit_forward());
__END_INNER_TINY__(branch_short);
mz_patch_branch(ref);
mz_patch_branch(ref8);
mz_patch_branch(ref9);
(void)jit_movi_p(dest, scheme_false);
__START_INNER_TINY__(branch_short);
mz_patch_ucbranch(ref2);
__END_INNER_TINY__(branch_short);
}
__END_SHORT_JUMPS__(branch_short);
return 1;
}
static int generate_inlined_char_category_test(mz_jit_state *jitter, Scheme_App2_Rec *app, int bit,
Branch_Info *for_branch, int branch_short,
int dest)
{
GC_CAN_IGNORE jit_insn *reffail = NULL, *ref, *pref;
LOG_IT(("inlined %s\n", ((Scheme_Primitive_Proc *)app->rator)->name));
mz_runstack_skipped(jitter, 1);
scheme_generate_non_tail(app->rand, jitter, 0, 1, 0);
CHECK_LIMIT();
mz_runstack_unskipped(jitter, 1);
mz_rs_sync();
__START_SHORT_JUMPS__(branch_short);
if (for_branch) {
scheme_prepare_branch_jump(jitter, for_branch);
CHECK_LIMIT();
}
pref = jit_bmci_ul(jit_forward(), JIT_R0, 0x1);
reffail = jit_get_ip();
(void)jit_movi_p(JIT_R2, ((Scheme_Primitive_Proc *)app->rator)->prim_val);
__END_SHORT_JUMPS__(branch_short);
(void)jit_calli(sjc.call_original_unary_arith_code);
__START_SHORT_JUMPS__(branch_short);
mz_patch_branch(pref);
(void)mz_bnei_t(reffail, JIT_R0, scheme_char_type, JIT_R2);
/* Extract character value */
jit_ldxi_i(JIT_R0, JIT_R0, (intptr_t)&SCHEME_CHAR_VAL((Scheme_Object *)0x0));
/* Lookup */
jit_movi_p(JIT_R1, scheme_uchar_table);
jit_rshi_i(JIT_R2, JIT_R0, (SCHEME_UCHAR_FIND_SHIFT - JIT_LOG_WORD_SIZE));
jit_andi_i(JIT_R2, JIT_R2, (SCHEME_UCHAR_FIND_HI_MASK << JIT_LOG_WORD_SIZE));
jit_ldxr_p(JIT_R1, JIT_R1, JIT_R2);
jit_andi_i(JIT_R2, JIT_R0, SCHEME_UCHAR_FIND_LO_MASK);
jit_lshi_i(JIT_R2, JIT_R2, 1); /* 1 = log_2(sizeof(short)) */
jit_ldxr_s(JIT_R1, JIT_R1, JIT_R2);
/* JIT_R1 now has character-property bits */
ref = jit_bmci_i(jit_forward(), JIT_R1, bit);
CHECK_LIMIT();
if (for_branch) {
scheme_add_branch_false(for_branch, ref);
scheme_branch_for_true(jitter, for_branch);
CHECK_LIMIT();
} else {
GC_CAN_IGNORE jit_insn *ref2;
(void)jit_movi_p(dest, scheme_true);
__START_INNER_TINY__(branch_short);
ref2 = jit_jmpi(jit_forward());
__END_INNER_TINY__(branch_short);
mz_patch_branch(ref);
(void)jit_movi_p(dest, scheme_false);
__START_INNER_TINY__(branch_short);
mz_patch_ucbranch(ref2);
__END_INNER_TINY__(branch_short);
}
__END_SHORT_JUMPS__(branch_short);
return 1;
}
static Scheme_Object *extract_struct_constant(mz_jit_state *jitter, Scheme_Object *rator)
{
if (SCHEME_PROCP(rator))
return rator;
if (SAME_TYPE(SCHEME_TYPE(rator), scheme_toplevel_type)
&& (SCHEME_TOPLEVEL_FLAGS(rator) & SCHEME_TOPLEVEL_FLAGS_MASK) >= SCHEME_TOPLEVEL_CONST) {
rator = scheme_extract_global(rator, jitter->nc, 0);
if (rator)
return ((Scheme_Bucket *)rator)->val;
} else if (SAME_TYPE(SCHEME_TYPE(rator), scheme_static_toplevel_type)
&& (SCHEME_TOPLEVEL_FLAGS(rator) & SCHEME_TOPLEVEL_FLAGS_MASK) >= SCHEME_TOPLEVEL_FIXED) {
rator = SCHEME_STATIC_TOPLEVEL_PREFIX(rator)->a[SCHEME_TOPLEVEL_POS(rator)];
return ((Scheme_Bucket *)rator)->val;
}
return NULL;
}
static int generate_inlined_struct_op(int kind, mz_jit_state *jitter,
Scheme_Object *rator, Scheme_Object *rand, Scheme_Object *rand2,
Branch_Info *for_branch, int branch_short,
int is_tail, int multi_ok, int result_ignored,
int dest)
/* de-sync'd ok; for branch, sync'd before */
{
GC_CAN_IGNORE jit_insn *ref, *ref2, *refslow;
Scheme_Object *inline_rator;
int type_unpacked = 0;
LOG_IT(("inlined struct op\n"));
if ((kind == INLINE_STRUCT_PROC_PRED)
&& SAME_TYPE(SCHEME_TYPE(rator), scheme_static_toplevel_type)) {
/* If a static toplevel has a predicate, then we can extract the
structure type eagerly */
inline_rator = extract_struct_constant(jitter, rator);
if (inline_rator) {
rator = ((Scheme_Primitive_Closure *)inline_rator)->val[0];
type_unpacked = 1;
}
} else
inline_rator = NULL;
if (!rand2) {
scheme_generate_two_args(rator, rand, jitter, 1, 1); /* sync'd below */
CHECK_LIMIT();
} else {
Scheme_Object *args[3];
args[0] = rator;
args[1] = rand;
args[2] = rand2;
scheme_generate_app(NULL, args, 2, 2, jitter, 0, 0, 0, 1); /* sync'd below */
CHECK_LIMIT();
jit_movr_p(JIT_R0, JIT_V1);
mz_rs_ldr(JIT_R1);
mz_rs_ldxi(JIT_V1, 1);
mz_rs_inc(2); /* sync'd below */
mz_runstack_popped(jitter, 2);
}
mz_rs_sync();
/* R0 is [potential] predicate/getter/setting, R1 is struct.
V1 is value for setting. */
if ((kind == INLINE_STRUCT_PROC_PRED)
|| (kind == INLINE_STRUCT_PROC_GET)
|| (kind == INLINE_STRUCT_PROC_SET)) {
if (!inline_rator)
inline_rator = extract_struct_constant(jitter, rator);
if (inline_rator && (kind != INLINE_STRUCT_PROC_PRED)) {
__START_SHORT_JUMPS__(1);
ref = jit_bmci_ul(jit_forward(), JIT_R1, 0x1);
if (kind == INLINE_STRUCT_PROC_SET)
scheme_save_struct_temp(jitter, JIT_V1); /* undone immediately, but needed for fall-through */
refslow = jit_get_ip();
if (kind == INLINE_STRUCT_PROC_SET)
scheme_restore_struct_temp(jitter, JIT_V1);
__END_SHORT_JUMPS__(1);
CHECK_LIMIT();
} else {
ref = NULL;
refslow = NULL;
}
} else {
inline_rator = NULL;
ref = NULL;
refslow = NULL;
}
if (for_branch) {
scheme_prepare_branch_jump(jitter, for_branch);
CHECK_LIMIT();
if (!inline_rator) {
__START_SHORT_JUMPS__(for_branch->branch_short);
scheme_add_branch_false_movi(for_branch, jit_patchable_movi_p(JIT_V1, jit_forward()));
__END_SHORT_JUMPS__(for_branch->branch_short);
(void)jit_calli(sjc.struct_pred_branch_code);
__START_SHORT_JUMPS__(for_branch->branch_short);
scheme_branch_for_true(jitter, for_branch);
__END_SHORT_JUMPS__(for_branch->branch_short);
CHECK_LIMIT();
}
} else if (kind == INLINE_STRUCT_PROC_PRED) {
if (!inline_rator) {
if (is_tail) {
(void)jit_calli(sjc.struct_pred_tail_code);
} else if (multi_ok) {
(void)jit_calli(sjc.struct_pred_multi_code);
} else {
(void)jit_calli(sjc.struct_pred_code);
}
}
} else if (kind == INLINE_STRUCT_PROC_GET) {
if (is_tail) {
(void)jit_calli(sjc.struct_get_tail_code);
} else if (multi_ok) {
(void)jit_calli(sjc.struct_get_multi_code);
} else {
(void)jit_calli(sjc.struct_get_code);
}
} else if (kind == INLINE_STRUCT_PROC_SET) {
if (is_tail) {
(void)jit_calli(sjc.struct_set_tail_code);
} else if (multi_ok) {
(void)jit_calli(sjc.struct_set_multi_code);
} else {
(void)jit_calli(sjc.struct_set_code);
}
} else if (kind == INLINE_STRUCT_PROC_PROP_GET) {
if (is_tail) {
(void)jit_calli(sjc.struct_prop_get_tail_code);
} else if (multi_ok) {
(void)jit_calli(sjc.struct_prop_get_multi_code);
} else {
(void)jit_calli(sjc.struct_prop_get_code);
}
} else if (kind == INLINE_STRUCT_PROC_PROP_GET_W_DEFAULT) {
if (is_tail) {
(void)jit_calli(sjc.struct_prop_get_defl_tail_code);
} else if (multi_ok) {
(void)jit_calli(sjc.struct_prop_get_defl_multi_code);
} else {
(void)jit_calli(sjc.struct_prop_get_defl_code);
}
} else if (kind == INLINE_STRUCT_PROC_PROP_PRED) {
if (is_tail) {
(void)jit_calli(sjc.struct_prop_pred_tail_code);
} else if (multi_ok) {
(void)jit_calli(sjc.struct_prop_pred_multi_code);
} else {
(void)jit_calli(sjc.struct_prop_pred_code);
}
} else if (kind == INLINE_STRUCT_PROC_CONSTR) {
int check_proc;
check_proc = !extract_struct_constant(jitter, rator);
scheme_generate_struct_alloc(jitter, rand2 ? 2 : 1, 0, 0, check_proc, is_tail, multi_ok, JIT_R0);
CHECK_LIMIT();
} else {
scheme_signal_error("internal error: unknown struct-op mode");
}
if (inline_rator) {
int pos, tpos, jkind, authentic;
tpos = ((Scheme_Struct_Type *)((Scheme_Primitive_Closure *)inline_rator)->val[0])->name_pos;
authentic = ((Scheme_Struct_Type *)((Scheme_Primitive_Closure *)inline_rator)->val[0])->authentic;
if (kind == INLINE_STRUCT_PROC_PRED) {
pos = 0;
} else {
pos = SCHEME_INT_VAL(((Scheme_Primitive_Closure *)inline_rator)->val[1]);
}
if (ref) {
__START_SHORT_JUMPS__(1);
ref2 = jit_jmpi(jit_forward());
mz_patch_branch(ref);
__END_SHORT_JUMPS__(1);
} else
ref2 = NULL;
if (kind == INLINE_STRUCT_PROC_GET)
jkind = 2;
else if (kind == INLINE_STRUCT_PROC_SET) {
scheme_save_struct_temp(jitter, JIT_V1);
jkind = 3;
} else
jkind = 1;
CHECK_LIMIT();
scheme_generate_struct_op(jitter, jkind, !!for_branch,
for_branch, branch_short,
result_ignored,
0, 0,
tpos, pos,
authentic, type_unpacked,
0, refslow, refslow, NULL, NULL);
CHECK_LIMIT();
if (ref2) {
__START_SHORT_JUMPS__(1);
mz_patch_ucbranch(ref2);
__END_SHORT_JUMPS__(1);
}
}
if (!for_branch)
jit_movr_p(dest, JIT_R0);
return 1;
}
#ifdef CAN_INLINE_ALLOC
static int inline_struct_alloc(mz_jit_state *jitter, int c, int inline_slow)
{
return scheme_inline_alloc(jitter,
sizeof(Scheme_Structure) + ((c - mzFLEX_DELTA) * sizeof(Scheme_Object*)),
scheme_structure_type,
0, 1, 0, inline_slow, 0);
}
#endif
static Scheme_Object *alloc_structure(Scheme_Object *_stype, int argc)
#ifdef MZ_USE_FUTURES
XFORM_SKIP_PROC
#endif
{
Scheme_Struct_Type *stype = (Scheme_Struct_Type *)_stype;
Scheme_Structure *inst;
Scheme_Object **args;
int i;
#ifdef MZ_USE_FUTURES
jit_future_storage[0] = stype;
#endif
inst = (Scheme_Structure *)
scheme_malloc_tagged(sizeof(Scheme_Structure)
+ ((argc - mzFLEX_DELTA) * sizeof(Scheme_Object *)));
#ifdef MZ_USE_FUTURES
stype = (Scheme_Struct_Type *)jit_future_storage[0];
if (!inst) {
/* Must be in a future thread */
inst = scheme_rtcall_allocate_structure(argc, stype);
} else
#endif
inst->stype = stype;
inst->so.type = scheme_structure_type;
args = MZ_RUNSTACK;
for (i = 0; i < argc; i++) {
inst->slots[i] = args[i];
}
return (Scheme_Object *)inst;
}
static Scheme_Object *checked_make_vector(int argc)
XFORM_SKIP_PROC
/* Arguments on runstack */
{
#ifdef MZ_USE_FUTURES
Scheme_Object *vec, *val, *c = MZ_RUNSTACK[0];
if (SCHEME_INTP(c)
&& (SCHEME_INT_VAL(c) >= 0)
/* Upper bound ensures that we don't have to deal with overflow: */
&& (SCHEME_INT_VAL(c) < 0x1000000)) {
/* In a future thread, we can try to call scheme_malloc_tagged() directory,
but it might fail and return NULL */
intptr_t count = SCHEME_INT_VAL(c), i, size;
size = (sizeof(Scheme_Vector)
+ ((count - mzFLEX_DELTA) * sizeof(Scheme_Object *)));
if ((count < 1024) || scheme_use_rtcall)
vec = scheme_malloc_tagged(size);
else
vec = scheme_malloc_fail_ok(scheme_malloc_tagged, size);
if (vec) {
vec->type = scheme_vector_type;
SCHEME_VEC_SIZE(vec) = count;
} else {
/* Must be in a future thread */
vec = scheme_rtcall_allocate_vector(count);
if (!vec) {
/* Unusual failure --- maybe "out of memory" */
return ts_scheme_checked_make_vector(argc, MZ_RUNSTACK);
}
}
val = ((argc > 1) ? MZ_RUNSTACK[1] : scheme_make_integer(0));
for (i = 0; i < count; i++) {
SCHEME_VEC_ELS(vec)[i] = val;
}
return vec;
} else
#endif
return ts_scheme_checked_make_vector(argc, MZ_RUNSTACK);
}
Scheme_Structure *scheme_jit_allocate_structure(int argc, Scheme_Struct_Type *stype)
{
Scheme_Structure *inst;
inst = (Scheme_Structure *)
scheme_malloc_tagged(sizeof(Scheme_Structure)
+ ((argc - mzFLEX_DELTA) * sizeof(Scheme_Object *)));
inst->stype = stype;
return inst;
}
static int generate_inlined_nary_struct_op(int kind, mz_jit_state *jitter,
Scheme_Object *rator, Scheme_App_Rec *app,
Branch_Info *for_branch, int branch_short,
int is_tail, int multi_ok, int dest)
/* de-sync'd ok; for branch, sync'd before */
{
int check_proc;
/* generate code to evaluate the arguments */
scheme_generate_app(app, NULL, app->num_args, app->num_args, jitter, 0, 0, 0, 1);
CHECK_LIMIT();
mz_rs_sync();
jit_movr_l(JIT_R0, JIT_V1); /* move rator to R0 */
check_proc = !extract_struct_constant(jitter, rator);
/* arguments are now on the runstack, rator is in R0 */
scheme_generate_struct_alloc(jitter, app->num_args, 0, 0, check_proc, is_tail, multi_ok, dest);
CHECK_LIMIT();
if (!is_tail && app->num_args) {
mz_rs_inc(app->num_args);
mz_runstack_popped(jitter, app->num_args);
}
return 1;
}
int scheme_generate_struct_alloc(mz_jit_state *jitter, int num_args,
int inline_slow, int pop_and_jump, int check_proc,
int is_tail, int multi_ok, int dest)
/* Rator is in R0.
For unary case, R1 is argument.
For binary case, R1 is first argument, V1 is second argument.
For nary case, args on are on runstack.
If num_args is -1, nary and R1 has the count.*/
{
GC_CAN_IGNORE jit_insn *ref, *refslow, *refdone;
GC_CAN_IGNORE jit_insn *refrts USED_ONLY_FOR_FUTURES;
int always_slow = 0;
#ifndef CAN_INLINE_ALLOC
if (!inline_slow)
always_slow = 1;
#endif
if (pop_and_jump) {
mz_prolog(JIT_R2);
}
__START_SHORT_JUMPS__(1);
if (!always_slow) {
ref = jit_bmci_ul(jit_forward(), JIT_R0, 0x1);
CHECK_LIMIT();
} else
ref = NULL;
/* Slow path: non-struct-prop proc, or argument type is
bad for a getter. */
refslow = jit_get_ip();
if (inline_slow) {
if (num_args == 1) {
jit_subi_p(JIT_RUNSTACK, JIT_RUNSTACK, WORDS_TO_BYTES(1));
CHECK_RUNSTACK_OVERFLOW();
JIT_UPDATE_THREAD_RSPTR();
jit_str_p(JIT_RUNSTACK, JIT_R1);
jit_movi_i(JIT_V1, 1);
num_args = 1;
} else if (num_args == 2) {
jit_subi_p(JIT_RUNSTACK, JIT_RUNSTACK, WORDS_TO_BYTES(2));
CHECK_RUNSTACK_OVERFLOW();
JIT_UPDATE_THREAD_RSPTR();
jit_str_p(JIT_RUNSTACK, JIT_R1);
jit_stxi_p(WORDS_TO_BYTES(1), JIT_RUNSTACK, JIT_V1);
jit_movi_i(JIT_V1, 2);
num_args = 2;
} else {
JIT_UPDATE_THREAD_RSPTR();
if (num_args == -1)
jit_movr_i(JIT_V1, JIT_R1);
else
jit_movi_i(JIT_V1, num_args);
num_args = -1;
}
CHECK_LIMIT();
jit_prepare(3);
jit_pusharg_p(JIT_RUNSTACK);
jit_pusharg_i(JIT_V1);