* Register usage:
* - %i0..%i<n> hold the incoming arguments, these are never written by JITted
* code. Unused input registers are used for global register allocation.
- * - %l0..%l7 is used for local register allocation
- * - %o0..%o6 is used for outgoing arguments
+ * - %o0..%o5 and %l7 is used for local register allocation and passing arguments
+ * - %l0..%l6 is used for global register allocation
* - %o7 and %g1 is used as scratch registers in opcodes
* - all floating point registers are used for local register allocation except %f0.
* Only double precision registers are used.
* Possible optimizations:
* - delay slot scheduling
* - allocate large constants to registers
- * - use %o registers for local allocation
- * - implement unwinding through native frames
* - add more mul/div/rem optimizations
*/
return "unknown";
}
+const char*
+mono_arch_fregname (int reg) {
+ static const char *rnames [] = {
+ "sparc_f0", "sparc_f1", "sparc_f2", "sparc_f3", "sparc_f4",
+ "sparc_f5", "sparc_f6", "sparc_f7", "sparc_f8", "sparc_f9",
+ "sparc_f10", "sparc_f11", "sparc_f12", "sparc_f13", "sparc_f14",
+ "sparc_f15", "sparc_f16", "sparc_f17", "sparc_f18", "sparc_f19",
+ "sparc_f20", "sparc_f21", "sparc_f22", "sparc_f23", "sparc_f24",
+ "sparc_f25", "sparc_f26", "sparc_f27", "sparc_f28", "sparc_f29",
+ "sparc_f30", "sparc_f31"
+ };
+
+ if (reg >= 0 && reg < 32)
+ return rnames [reg];
+ else
+ return "unknown";
+}
+
/*
* Initialize the cpu to execute managed code.
*/
for (i = cinfo->reg_usage; i < 6; ++i)
regs = g_list_prepend (regs, GUINT_TO_POINTER (sparc_i0 + i));
- /* Use %l0..%l3 as global registers */
- for (i = sparc_l0; i < sparc_l4; ++i)
+ /* Use %l0..%l6 as global registers */
+ for (i = sparc_l0; i < sparc_l7; ++i)
regs = g_list_prepend (regs, GUINT_TO_POINTER (i));
g_free (cinfo);
g_free (cinfo);
}
+static MonoInst *
+make_group (MonoCompile *cfg, MonoInst *left, int basereg, int offset)
+{
+ MonoInst *group;
+
+ MONO_INST_NEW (cfg, group, OP_GROUP);
+ group->inst_left = left;
+ group->inst_basereg = basereg;
+ group->inst_imm = offset;
+
+ return group;
+}
+
/*
* take the arguments and generate the arch-specific
* instructions to properly call the function in call.
cfg->disable_aot = TRUE;
/* We allways pass the signature on the stack for simplicity */
MONO_INST_NEW (cfg, arg, OP_SPARC_OUTARG_MEM);
- arg->inst_basereg = sparc_sp;
- arg->inst_imm = ARGS_OFFSET + cinfo->sig_cookie.offset;
+ arg->inst_right = make_group (cfg, (MonoInst*)call, sparc_sp, ARGS_OFFSET + cinfo->sig_cookie.offset);
MONO_INST_NEW (cfg, sig_arg, OP_ICONST);
sig_arg->inst_p0 = tmp_sig;
arg->inst_left = sig_arg;
cinfo->stack_usage += pad;
}
+ arg->inst_right = make_group (cfg, (MonoInst*)call, sparc_sp, ARGS_OFFSET + ainfo->offset);
+
switch (ainfo->storage) {
case ArgInIReg:
case ArgInFReg:
arg->unused = sparc_o0 + ainfo->reg;
call->used_iregs |= 1 << ainfo->reg;
- if ((i >= sig->hasthis) && (sig->params [i - sig->hasthis]->type == MONO_TYPE_R8)) {
+ if ((i >= sig->hasthis) && !sig->params [i - sig->hasthis]->byref && ((sig->params [i - sig->hasthis]->type == MONO_TYPE_R8) || (sig->params [i - sig->hasthis]->type == MONO_TYPE_R4))) {
+ /* An fp value is passed in an ireg */
+
+ if (arg->opcode == OP_SPARC_OUTARG_REGPAIR)
+ arg->opcode = OP_SPARC_OUTARG_REGPAIR_FLOAT;
+ else
+ arg->opcode = OP_SPARC_OUTARG_FLOAT;
+
/*
* The OUTARG (freg) implementation needs an extra dword to store
* the temporary value.
- */
+ */
extra_space += 8;
}
break;
default:
NOT_IMPLEMENTED;
}
-
- arg->inst_basereg = sparc_sp;
- arg->inst_imm = ARGS_OFFSET + ainfo->offset;
}
}
call->out_args = prev;
}
call->stack_usage = cinfo->stack_usage + extra_space;
+ call->out_ireg_args = NULL;
+ call->out_freg_args = NULL;
cfg->param_area = MAX (cfg->param_area, call->stack_usage);
cfg->flags |= MONO_CFG_HAS_CALLS;
bb->last_ins = last_ins;
}
-/* Parameters used by the register allocator */
-
-/* Use %l4..%l7 as local registers */
-#define ARCH_CALLER_REGS (0xf0<<16)
-
-#ifdef SPARCV9
-/* Use %d34..%d62 as the double precision floating point local registers */
-/* %d32 has the same encoding as %f1, so %d36%d38 == 0b1010 == 0xa */
-#define ARCH_CALLER_FREGS (0xaaaaaaa8)
-#else
-/* Use %f2..%f30 as the double precision floating point local registers */
-#define ARCH_CALLER_FREGS (0x55555554)
-#endif
-
-#undef DEBUG
-#define DEBUG(a) if (cfg->verbose_level > 1) a
-//#define DEBUG(a)
-#define reg_is_freeable(r) ((1 << (r)) & ARCH_CALLER_REGS)
-#define freg_is_freeable(r) (((1) << (r)) & ARCH_CALLER_FREGS)
-
-typedef struct {
- int born_in;
- int killed_in;
- int last_use;
- int prev_use;
-} RegTrack;
-
static const char*const * ins_spec = sparc_desc;
static inline const char*
return ins_spec [CEE_ADD];
}
-static void
-print_ins (int i, MonoInst *ins)
-{
- const char *spec = get_ins_spec (ins->opcode);
- g_print ("\t%-2d %s", i, mono_inst_name (ins->opcode));
- if (spec [MONO_INST_DEST]) {
- if (ins->dreg >= MONO_MAX_IREGS)
- g_print (" R%d <-", ins->dreg);
- else
- if (spec [MONO_INST_DEST] == 'b')
- g_print (" [%s + 0x%lx] <-", mono_arch_regname (ins->dreg), (long)ins->inst_offset);
- else
- g_print (" %s <-", mono_arch_regname (ins->dreg));
- }
- if (spec [MONO_INST_SRC1]) {
- if (ins->sreg1 >= MONO_MAX_IREGS)
- g_print (" R%d", ins->sreg1);
- else
- if (spec [MONO_INST_SRC1] == 'b')
- g_print (" [%s + 0x%lx]", mono_arch_regname (ins->sreg1), (long)ins->inst_offset);
- else
- g_print (" %s", mono_arch_regname (ins->sreg1));
- }
- if (spec [MONO_INST_SRC2]) {
- if (ins->sreg2 >= MONO_MAX_IREGS)
- g_print (" R%d", ins->sreg2);
- else
- g_print (" %s", mono_arch_regname (ins->sreg2));
- }
- if (spec [MONO_INST_CLOB])
- g_print (" clobbers: %c", spec [MONO_INST_CLOB]);
- g_print ("\n");
-}
-
-static void
-print_regtrack (RegTrack *t, int num)
-{
- int i;
- char buf [32];
- const char *r;
-
- for (i = 0; i < num; ++i) {
- if (!t [i].born_in)
- continue;
- if (i >= MONO_MAX_IREGS) {
- g_snprintf (buf, sizeof(buf), "R%d", i);
- r = buf;
- } else
- r = mono_arch_regname (i);
- g_print ("liveness: %s [%d - %d]\n", r, t [i].born_in, t[i].last_use);
- }
-}
-
-typedef struct InstList InstList;
-
-struct InstList {
- InstList *prev;
- InstList *next;
- MonoInst *data;
-};
-
-static inline InstList*
-inst_list_prepend (MonoMemPool *pool, InstList *list, MonoInst *data)
-{
- InstList *item = mono_mempool_alloc (pool, sizeof (InstList));
- item->data = data;
- item->prev = NULL;
- item->next = list;
- if (list)
- list->prev = item;
- return item;
-}
-
-#define STACK_OFFSETS_POSITIVE
-
-/*
- * returns the offset used by spillvar. It allocates a new
- * spill variable if necessary.
- */
-static int
-mono_spillvar_offset (MonoCompile *cfg, int spillvar)
-{
- MonoSpillInfo **si, *info;
- int i = 0;
-
- si = &cfg->spill_info;
-
- while (i <= spillvar) {
-
- if (!*si) {
- *si = info = mono_mempool_alloc (cfg->mempool, sizeof (MonoSpillInfo));
- info->next = NULL;
- cfg->stack_offset += sizeof (gpointer);
- info->offset = - cfg->stack_offset;
- }
-
- if (i == spillvar)
- return MONO_SPARC_STACK_BIAS + (*si)->offset;
-
- i++;
- si = &(*si)->next;
- }
-
- g_assert_not_reached ();
- return 0;
-}
-
static int
mono_spillvar_offset_float (MonoCompile *cfg, int spillvar)
{
return 0;
}
-/*
- * Force the spilling of the variable in the symbolic register 'reg'.
- */
-G_GNUC_UNUSED static int
-get_register_force_spilling (MonoCompile *cfg, InstList *item, MonoInst *ins, int reg)
-{
- MonoInst *load;
- int i, sel, spill;
-
- sel = cfg->rs->iassign [reg];
- /*i = cfg->rs->isymbolic [sel];
- g_assert (i == reg);*/
- i = reg;
- spill = ++cfg->spill_count;
- cfg->rs->iassign [i] = -spill - 1;
- mono_regstate_free_int (cfg->rs, sel);
- /* we need to create a spill var and insert a load to sel after the current instruction */
- MONO_INST_NEW (cfg, load, OP_LOAD_MEMBASE);
- load->dreg = sel;
- load->inst_basereg = cfg->frame_reg;
- load->inst_offset = mono_spillvar_offset (cfg, spill);
- if (item->prev) {
- while (ins->next != item->prev->data)
- ins = ins->next;
- }
- load->next = ins->next;
- ins->next = load;
- DEBUG (g_print ("SPILLED LOAD (%d at 0x%08lx(%%sp)) R%d (freed %s)\n", spill, (long)load->inst_offset, i, mono_arch_regname (sel)));
- i = mono_regstate_alloc_int (cfg->rs, 1 << sel);
- g_assert (i == sel);
-
- return sel;
-}
-
-static int
-get_register_spilling (MonoCompile *cfg, InstList *item, MonoInst *ins, guint32 regmask, int reg)
-{
- MonoInst *load;
- int i, sel, spill;
-
- DEBUG (g_print ("start regmask to assign R%d: 0x%08x (R%d <- R%d R%d)\n", reg, regmask, ins->dreg, ins->sreg1, ins->sreg2));
- /* exclude the registers in the current instruction */
- if (reg != ins->sreg1 && (reg_is_freeable (ins->sreg1) || (ins->sreg1 >= MONO_MAX_IREGS && cfg->rs->iassign [ins->sreg1] >= 0))) {
- if (ins->sreg1 >= MONO_MAX_IREGS)
- regmask &= ~ (1 << cfg->rs->iassign [ins->sreg1]);
- else
- regmask &= ~ (1 << ins->sreg1);
- DEBUG (g_print ("excluding sreg1 %s\n", mono_arch_regname (ins->sreg1)));
- }
- if (reg != ins->sreg2 && (reg_is_freeable (ins->sreg2) || (ins->sreg2 >= MONO_MAX_IREGS && cfg->rs->iassign [ins->sreg2] >= 0))) {
- if (ins->sreg2 >= MONO_MAX_IREGS)
- regmask &= ~ (1 << cfg->rs->iassign [ins->sreg2]);
- else
- regmask &= ~ (1 << ins->sreg2);
- DEBUG (g_print ("excluding sreg2 %s %d\n", mono_arch_regname (ins->sreg2), ins->sreg2));
- }
- if (reg != ins->dreg && reg_is_freeable (ins->dreg)) {
- regmask &= ~ (1 << ins->dreg);
- DEBUG (g_print ("excluding dreg %s\n", mono_arch_regname (ins->dreg)));
- }
-
- DEBUG (g_print ("available regmask: 0x%08x\n", regmask));
- g_assert (regmask); /* need at least a register we can free */
- sel = -1;
- /* we should track prev_use and spill the register that's farther */
- for (i = 0; i < MONO_MAX_IREGS; ++i) {
- if (regmask & (1 << i)) {
- sel = i;
- DEBUG (g_print ("selected register %s has assignment %d\n", mono_arch_regname (sel), cfg->rs->iassign [sel]));
- break;
- }
- }
- i = cfg->rs->isymbolic [sel];
- spill = ++cfg->spill_count;
- cfg->rs->iassign [i] = -spill - 1;
- mono_regstate_free_int (cfg->rs, sel);
- /* we need to create a spill var and insert a load to sel after the current instruction */
- MONO_INST_NEW (cfg, load, OP_LOAD_MEMBASE);
- load->dreg = sel;
- load->inst_basereg = cfg->frame_reg;
- load->inst_offset = mono_spillvar_offset (cfg, spill);
- if (item->prev) {
- while (ins->next != item->prev->data)
- ins = ins->next;
- }
- load->next = ins->next;
- ins->next = load;
- DEBUG (g_print ("SPILLED LOAD (%d at 0x%08lx(%%sp)) R%d (freed %s)\n", spill, (long)load->inst_offset, i, mono_arch_regname (sel)));
- i = mono_regstate_alloc_int (cfg->rs, 1 << sel);
- g_assert (i == sel);
-
- return sel;
-}
-
-static int
-get_float_register_spilling (MonoCompile *cfg, InstList *item, MonoInst *ins, guint32 regmask, int reg)
-{
- MonoInst *load;
- int i, sel, spill;
-
- DEBUG (g_print ("start regmask to assign R%d: 0x%08x (R%d <- R%d R%d)\n", reg, regmask, ins->dreg, ins->sreg1, ins->sreg2));
- /* exclude the registers in the current instruction */
- if (reg != ins->sreg1 && (freg_is_freeable (ins->sreg1) || (ins->sreg1 >= MONO_MAX_FREGS && cfg->rs->fassign [ins->sreg1] >= 0))) {
- if (ins->sreg1 >= MONO_MAX_FREGS)
- regmask &= ~ (1 << cfg->rs->fassign [ins->sreg1]);
- else
- regmask &= ~ (1 << ins->sreg1);
- DEBUG (g_print ("excluding sreg1 %s\n", mono_arch_regname (ins->sreg1)));
- }
- if (reg != ins->sreg2 && (freg_is_freeable (ins->sreg2) || (ins->sreg2 >= MONO_MAX_FREGS && cfg->rs->fassign [ins->sreg2] >= 0))) {
- if (ins->sreg2 >= MONO_MAX_FREGS)
- regmask &= ~ (1 << cfg->rs->fassign [ins->sreg2]);
- else
- regmask &= ~ (1 << ins->sreg2);
- DEBUG (g_print ("excluding sreg2 %s %d\n", mono_arch_regname (ins->sreg2), ins->sreg2));
- }
- if (reg != ins->dreg && freg_is_freeable (ins->dreg)) {
- regmask &= ~ (1 << ins->dreg);
- DEBUG (g_print ("excluding dreg %s\n", mono_arch_regname (ins->dreg)));
- }
-
- DEBUG (g_print ("available regmask: 0x%08x\n", regmask));
- g_assert (regmask); /* need at least a register we can free */
- sel = -1;
- /* we should track prev_use and spill the register that's farther */
- for (i = 0; i < MONO_MAX_FREGS; ++i) {
- if (regmask & (1 << i)) {
- sel = i;
- DEBUG (g_print ("selected register %s has assignment %d\n", mono_arch_regname (sel), cfg->rs->fassign [sel]));
- break;
- }
- }
- i = cfg->rs->fsymbolic [sel];
- spill = ++cfg->spill_count;
- cfg->rs->fassign [i] = -spill - 1;
- mono_regstate_free_float(cfg->rs, sel);
- /* we need to create a spill var and insert a load to sel after the current instruction */
- MONO_INST_NEW (cfg, load, OP_LOADR8_MEMBASE);
- load->dreg = sel;
- load->inst_basereg = cfg->frame_reg;
- load->inst_offset = mono_spillvar_offset_float (cfg, spill);
- if (item->prev) {
- while (ins->next != item->prev->data)
- ins = ins->next;
- }
- load->next = ins->next;
- ins->next = load;
- DEBUG (g_print ("SPILLED LOAD (%d at 0x%08lx(%%sp)) R%d (freed %s)\n", spill, (long)load->inst_offset, i, mono_arch_regname (sel)));
- i = mono_regstate_alloc_float (cfg->rs, 1 << sel);
- g_assert (i == sel);
-
- return sel;
-}
-
-static MonoInst*
-create_copy_ins (MonoCompile *cfg, int dest, int src, MonoInst *ins)
-{
- MonoInst *copy;
- MONO_INST_NEW (cfg, copy, OP_MOVE);
- copy->dreg = dest;
- copy->sreg1 = src;
- if (ins) {
- copy->next = ins->next;
- ins->next = copy;
- }
- DEBUG (g_print ("\tforced copy from %s to %s\n", mono_arch_regname (src), mono_arch_regname (dest)));
- return copy;
-}
-
-G_GNUC_UNUSED static MonoInst*
-create_copy_ins_float (MonoCompile *cfg, int dest, int src, MonoInst *ins)
-{
- MonoInst *copy;
- MONO_INST_NEW (cfg, copy, OP_FMOVE);
- copy->dreg = dest;
- copy->sreg1 = src;
- if (ins) {
- copy->next = ins->next;
- ins->next = copy;
- }
- DEBUG (g_print ("\tforced copy from %s to %s\n", mono_arch_regname (src), mono_arch_regname (dest)));
- return copy;
-}
-
-static MonoInst*
-create_spilled_store (MonoCompile *cfg, int spill, int reg, int prev_reg, MonoInst *ins)
-{
- MonoInst *store;
- MONO_INST_NEW (cfg, store, OP_STORE_MEMBASE_REG);
- store->sreg1 = reg;
- store->inst_destbasereg = cfg->frame_reg;
- store->inst_offset = mono_spillvar_offset (cfg, spill);
- if (ins) {
- store->next = ins->next;
- ins->next = store;
- }
- DEBUG (g_print ("SPILLED STORE (%d at 0x%08lx(%%sp)) R%d (from %s)\n", spill, (long)store->inst_offset, prev_reg, mono_arch_regname (reg)));
- return store;
-}
-
-static MonoInst*
-create_spilled_store_float (MonoCompile *cfg, int spill, int reg, int prev_reg, MonoInst *ins)
-{
- MonoInst *store;
- MONO_INST_NEW (cfg, store, OP_STORER8_MEMBASE_REG);
- store->sreg1 = reg;
- store->inst_destbasereg = cfg->frame_reg;
- store->inst_offset = mono_spillvar_offset_float (cfg, spill);
- if (ins) {
- store->next = ins->next;
- ins->next = store;
- }
- DEBUG (g_print ("SPILLED STORE (%d at 0x%08lx(%%sp)) R%d (from %s)\n", spill, (long)store->inst_offset, prev_reg, mono_arch_regname (reg)));
- return store;
-}
-
-static void
-insert_before_ins (MonoInst *ins, InstList *item, MonoInst* to_insert)
-{
- MonoInst *prev;
- g_assert (item->next);
- prev = item->next->data;
-
- while (prev->next != ins)
- prev = prev->next;
- to_insert->next = ins;
- prev->next = to_insert;
- /*
- * needed otherwise in the next instruction we can add an ins to the
- * end and that would get past this instruction.
- */
- item->data = to_insert;
-}
-
-G_GNUC_UNUSED static int
-alloc_int_reg (MonoCompile *cfg, InstList *curinst, MonoInst *ins, int sym_reg, guint32 allow_mask)
-{
- int val = cfg->rs->iassign [sym_reg];
- if (val < 0) {
- int spill = 0;
- if (val < -1) {
- /* the register gets spilled after this inst */
- spill = -val -1;
- }
- val = mono_regstate_alloc_int (cfg->rs, allow_mask);
- if (val < 0)
- val = get_register_spilling (cfg, curinst, ins, allow_mask, sym_reg);
- cfg->rs->iassign [sym_reg] = val;
- /* add option to store before the instruction for src registers */
- if (spill)
- create_spilled_store (cfg, spill, val, sym_reg, ins);
- }
- cfg->rs->isymbolic [val] = sym_reg;
- return val;
-}
-
/* FIXME: Strange loads from the stack in basic-float.cs:test_2_rem */
-/*
- * Local register allocation.
- * We first scan the list of instructions and we save the liveness info of
- * each register (when the register is first used, when it's value is set etc.).
- * We also reverse the list of instructions (in the InstList list) because assigning
- * registers backwards allows for more tricks to be used.
- */
void
mono_arch_local_regalloc (MonoCompile *cfg, MonoBasicBlock *bb)
{
- MonoInst *ins;
- MonoRegState *rs = cfg->rs;
- int i, val;
- RegTrack *reginfo, *reginfof;
- RegTrack *reginfo1, *reginfo2, *reginfod;
- InstList *tmp, *reversed = NULL;
- const char *spec;
- guint32 src1_mask, src2_mask, dest_mask;
- guint32 cur_iregs, cur_fregs;
-
- /* FIXME: Use caller saved regs and %i1-%2 for allocation */
-
- if (!bb->code)
- return;
- rs->next_vireg = bb->max_ireg;
- rs->next_vfreg = bb->max_freg;
- mono_regstate_assign (rs);
- reginfo = mono_mempool_alloc0 (cfg->mempool, sizeof (RegTrack) * rs->next_vireg);
- reginfof = mono_mempool_alloc0 (cfg->mempool, sizeof (RegTrack) * rs->next_vfreg);
- rs->ifree_mask = ARCH_CALLER_REGS;
- rs->ffree_mask = ARCH_CALLER_FREGS;
-
- ins = bb->code;
- i = 1;
- DEBUG (g_print ("LOCAL regalloc: basic block: %d\n", bb->block_num));
- /* forward pass on the instructions to collect register liveness info */
- while (ins) {
- spec = ins_spec [ins->opcode];
- if (!spec) {
- /* Use a default */
- spec = ins_spec [CEE_ADD];
- }
- DEBUG (print_ins (i, ins));
-
- if (spec [MONO_INST_SRC1]) {
- if (spec [MONO_INST_SRC1] == 'f')
- reginfo1 = reginfof;
- else
- reginfo1 = reginfo;
- reginfo1 [ins->sreg1].prev_use = reginfo1 [ins->sreg1].last_use;
- reginfo1 [ins->sreg1].last_use = i;
- } else {
- ins->sreg1 = -1;
- }
- if (spec [MONO_INST_SRC2]) {
- if (spec [MONO_INST_SRC2] == 'f')
- reginfo2 = reginfof;
- else
- reginfo2 = reginfo;
- reginfo2 [ins->sreg2].prev_use = reginfo2 [ins->sreg2].last_use;
- reginfo2 [ins->sreg2].last_use = i;
- } else {
- ins->sreg2 = -1;
- }
- if (spec [MONO_INST_DEST]) {
- if (spec [MONO_INST_DEST] == 'f')
- reginfod = reginfof;
- else
- reginfod = reginfo;
- if (spec [MONO_INST_DEST] != 'b') /* it's not just a base register */
- reginfod [ins->dreg].killed_in = i;
- reginfod [ins->dreg].prev_use = reginfod [ins->dreg].last_use;
- reginfod [ins->dreg].last_use = i;
- if (reginfod [ins->dreg].born_in == 0 || reginfod [ins->dreg].born_in > i)
- reginfod [ins->dreg].born_in = i;
- if (!v64 && (spec [MONO_INST_DEST] == 'l')) {
- /* result in a regpair, the virtual register is allocated sequentially */
- reginfod [ins->dreg + 1].prev_use = reginfod [ins->dreg + 1].last_use;
- reginfod [ins->dreg + 1].last_use = i;
- if (reginfod [ins->dreg + 1].born_in == 0 || reginfod [ins->dreg + 1].born_in > i)
- reginfod [ins->dreg + 1].born_in = i;
- }
- } else {
- ins->dreg = -1;
- }
- reversed = inst_list_prepend (cfg->mempool, reversed, ins);
- ++i;
- ins = ins->next;
- }
-
- cur_iregs = ARCH_CALLER_REGS;
- cur_fregs = ARCH_CALLER_FREGS;
-
- DEBUG (print_regtrack (reginfo, rs->next_vireg));
- DEBUG (print_regtrack (reginfof, rs->next_vfreg));
- tmp = reversed;
- while (tmp) {
- int prev_dreg, prev_sreg1, prev_sreg2;
- --i;
- ins = tmp->data;
- spec = ins_spec [ins->opcode];
- if (!spec)
- spec = ins_spec [CEE_ADD];
- DEBUG (g_print ("processing:"));
- DEBUG (print_ins (i, ins));
-
- /* make the register available for allocation: FIXME add fp reg */
- if (ins->opcode == OP_SETREG || ins->opcode == OP_SETREGIMM) {
- /* Dont free register which can't be allocated */
- if (reg_is_freeable (ins->dreg)) {
- cur_iregs |= 1 << ins->dreg;
- DEBUG (g_print ("adding %d to cur_iregs\n", ins->dreg));
- }
- } else if (ins->opcode == OP_SETFREG) {
- if (freg_is_freeable (ins->dreg)) {
- cur_fregs |= 1 << ins->dreg;
- DEBUG (g_print ("adding %d to cur_fregs\n", ins->dreg));
- }
- } else if (spec [MONO_INST_CLOB] == 'c') {
- MonoCallInst *cinst = (MonoCallInst*)ins;
- DEBUG (g_print ("excluding regs 0x%lx from cur_iregs (0x%x)\n", (long)cinst->used_iregs, cur_iregs));
- cur_iregs &= ~cinst->used_iregs;
- cur_fregs &= ~cinst->used_fregs;
- DEBUG (g_print ("available cur_iregs: 0x%x\n", cur_iregs));
- /* registers used by the calling convention are excluded from
- * allocation: they will be selectively enabled when they are
- * assigned by the special SETREG opcodes.
- */
- }
- dest_mask = src1_mask = src2_mask = cur_iregs;
-
- /*
- * DEST
- */
- /* update for use with FP regs... */
- if (spec [MONO_INST_DEST] == 'f') {
- if (ins->dreg >= MONO_MAX_FREGS) {
- val = rs->fassign [ins->dreg];
- prev_dreg = ins->dreg;
- if (val < 0) {
- int spill = 0;
- if (val < -1) {
- /* the register gets spilled after this inst */
- spill = -val -1;
- }
- dest_mask = cur_fregs;
- val = mono_regstate_alloc_float (rs, dest_mask);
- if (val < 0)
- val = get_float_register_spilling (cfg, tmp, ins, dest_mask, ins->dreg);
- rs->fassign [ins->dreg] = val;
- if (spill)
- create_spilled_store_float (cfg, spill, val, prev_dreg, ins);
- }
- DEBUG (g_print ("\tassigned dreg %s to dest R%d\n", mono_arch_regname (val), ins->dreg));
- rs->fsymbolic [val] = prev_dreg;
- ins->dreg = val;
- } else {
- prev_dreg = -1;
- }
- if (freg_is_freeable (ins->dreg) && prev_dreg >= 0 && (reginfo [prev_dreg].born_in >= i || !(cur_fregs & (1 << ins->dreg)))) {
- DEBUG (g_print ("\tfreeable %s (R%d) (born in %d)\n", mono_arch_regname (ins->dreg), prev_dreg, reginfo [prev_dreg].born_in));
- mono_regstate_free_float (rs, ins->dreg);
- }
- } else if (ins->dreg >= MONO_MAX_IREGS) {
- val = rs->iassign [ins->dreg];
- prev_dreg = ins->dreg;
- if (val < 0) {
- int spill = 0;
- if (val < -1) {
- /* the register gets spilled after this inst */
- spill = -val -1;
- }
- val = mono_regstate_alloc_int (rs, dest_mask);
- if (val < 0)
- val = get_register_spilling (cfg, tmp, ins, dest_mask, ins->dreg);
- rs->iassign [ins->dreg] = val;
- if (spill)
- create_spilled_store (cfg, spill, val, prev_dreg, ins);
- }
- DEBUG (g_print ("\tassigned dreg %s to dest R%d\n", mono_arch_regname (val), ins->dreg));
- rs->isymbolic [val] = prev_dreg;
- ins->dreg = val;
- if (!v64 && spec [MONO_INST_DEST] == 'l') {
- int hreg = prev_dreg + 1;
- val = rs->iassign [hreg];
- if (val < 0) {
- int spill = 0;
- if (val < -1) {
- /* the register gets spilled after this inst */
- spill = -val -1;
- }
- /* The second register must be a pair of the first */
- dest_mask = 1 << (rs->iassign [prev_dreg] + 1);
- val = mono_regstate_alloc_int (rs, dest_mask);
- if (val < 0)
- val = get_register_spilling (cfg, tmp, ins, dest_mask, hreg);
- rs->iassign [hreg] = val;
- if (spill)
- create_spilled_store (cfg, spill, val, hreg, ins);
- }
- else {
- /* The second register must be a pair of the first */
- if (val != rs->iassign [prev_dreg] + 1) {
- dest_mask = 1 << (rs->iassign [prev_dreg] + 1);
-
- val = mono_regstate_alloc_int (rs, dest_mask);
- if (val < 0)
- val = get_register_spilling (cfg, tmp, ins, dest_mask, hreg);
-
- create_copy_ins (cfg, rs->iassign [hreg], val, ins);
-
- rs->iassign [hreg] = val;
- }
- }
-
- DEBUG (g_print ("\tassigned hreg %s to dest R%d\n", mono_arch_regname (val), hreg));
- rs->isymbolic [val] = hreg;
-
- if (reg_is_freeable (val) && hreg >= 0 && (reginfo [hreg].born_in >= i && !(cur_iregs & (1 << val)))) {
- DEBUG (g_print ("\tfreeable %s (R%d)\n", mono_arch_regname (val), hreg));
- mono_regstate_free_int (rs, val);
- }
- }
- } else {
- prev_dreg = -1;
- }
- if (spec [MONO_INST_DEST] != 'f' && reg_is_freeable (ins->dreg) && prev_dreg >= 0 && (reginfo [prev_dreg].born_in >= i)) {
- DEBUG (g_print ("\tfreeable %s (R%d) (born in %d)\n", mono_arch_regname (ins->dreg), prev_dreg, reginfo [prev_dreg].born_in));
- mono_regstate_free_int (rs, ins->dreg);
- }
-
- /*
- * SRC1
- */
- if (spec [MONO_INST_SRC1] == 'f') {
- if (ins->sreg1 >= MONO_MAX_FREGS) {
- val = rs->fassign [ins->sreg1];
- prev_sreg1 = ins->sreg1;
- if (val < 0) {
- int spill = 0;
- if (val < -1) {
- /* the register gets spilled after this inst */
- spill = -val -1;
- }
- //g_assert (val == -1); /* source cannot be spilled */
- src1_mask = cur_fregs;
- val = mono_regstate_alloc_float (rs, src1_mask);
- if (val < 0)
- val = get_float_register_spilling (cfg, tmp, ins, src1_mask, ins->sreg1);
- rs->fassign [ins->sreg1] = val;
- DEBUG (g_print ("\tassigned sreg1 %s to R%d\n", mono_arch_regname (val), ins->sreg1));
- if (spill) {
- MonoInst *store = create_spilled_store_float (cfg, spill, val, prev_sreg1, NULL);
- insert_before_ins (ins, tmp, store);
- }
- }
- rs->fsymbolic [val] = prev_sreg1;
- ins->sreg1 = val;
- } else {
- prev_sreg1 = -1;
- }
- } else if (ins->sreg1 >= MONO_MAX_IREGS) {
- val = rs->iassign [ins->sreg1];
- prev_sreg1 = ins->sreg1;
- if (val < 0) {
- int spill = 0;
- if (val < -1) {
- /* the register gets spilled after this inst */
- spill = -val -1;
- }
- if (0 && (ins->opcode == OP_MOVE) && reg_is_freeable (ins->dreg)) {
- /*
- * small optimization: the dest register is already allocated
- * but the src one is not: we can simply assign the same register
- * here and peephole will get rid of the instruction later.
- * This optimization may interfere with the clobbering handling:
- * it removes a mov operation that will be added again to handle clobbering.
- * There are also some other issues that should with make testjit.
- */
- mono_regstate_alloc_int (rs, 1 << ins->dreg);
- val = rs->iassign [ins->sreg1] = ins->dreg;
- //g_assert (val >= 0);
- DEBUG (g_print ("\tfast assigned sreg1 %s to R%d\n", mono_arch_regname (val), ins->sreg1));
- } else {
- //g_assert (val == -1); /* source cannot be spilled */
- val = mono_regstate_alloc_int (rs, src1_mask);
- if (val < 0)
- val = get_register_spilling (cfg, tmp, ins, src1_mask, ins->sreg1);
- rs->iassign [ins->sreg1] = val;
- DEBUG (g_print ("\tassigned sreg1 %s to R%d\n", mono_arch_regname (val), ins->sreg1));
- }
- if (spill) {
- MonoInst *store = create_spilled_store (cfg, spill, val, prev_sreg1, NULL);
- insert_before_ins (ins, tmp, store);
- }
- }
- rs->isymbolic [val] = prev_sreg1;
- ins->sreg1 = val;
- } else {
- prev_sreg1 = -1;
- }
-
- /*
- * SRC2
- */
- if (spec [MONO_INST_SRC2] == 'f') {
- if (ins->sreg2 >= MONO_MAX_FREGS) {
- val = rs->fassign [ins->sreg2];
- prev_sreg2 = ins->sreg2;
- if (val < 0) {
- int spill = 0;
- if (val < -1) {
- /* the register gets spilled after this inst */
- spill = -val -1;
- }
- src2_mask = cur_fregs;
- val = mono_regstate_alloc_float (rs, src2_mask);
- if (val < 0)
- val = get_float_register_spilling (cfg, tmp, ins, src2_mask, ins->sreg2);
- rs->fassign [ins->sreg2] = val;
- DEBUG (g_print ("\tassigned sreg2 %s to R%d\n", mono_arch_regname (val), ins->sreg2));
- if (spill)
- create_spilled_store_float (cfg, spill, val, prev_sreg2, ins);
- }
- rs->fsymbolic [val] = prev_sreg2;
- ins->sreg2 = val;
- } else {
- prev_sreg2 = -1;
- }
- } else if (ins->sreg2 >= MONO_MAX_IREGS) {
- val = rs->iassign [ins->sreg2];
- prev_sreg2 = ins->sreg2;
- if (val < 0) {
- int spill = 0;
- if (val < -1) {
- /* the register gets spilled after this inst */
- spill = -val -1;
- }
- val = mono_regstate_alloc_int (rs, src2_mask);
- if (val < 0)
- val = get_register_spilling (cfg, tmp, ins, src2_mask, ins->sreg2);
- rs->iassign [ins->sreg2] = val;
- DEBUG (g_print ("\tassigned sreg2 %s to R%d\n", mono_arch_regname (val), ins->sreg2));
- if (spill)
- create_spilled_store (cfg, spill, val, prev_sreg2, ins);
- }
- rs->isymbolic [val] = prev_sreg2;
- ins->sreg2 = val;
- } else {
- prev_sreg2 = -1;
- }
-
- if (spec [MONO_INST_CLOB] == 'c') {
- int j, s;
- guint32 clob_mask = ARCH_CALLER_REGS;
- for (j = 0; j < MONO_MAX_IREGS; ++j) {
- s = 1 << j;
- if ((clob_mask & s) && !(rs->ifree_mask & s) && j != ins->sreg1) {
- //g_warning ("register %s busy at call site\n", mono_arch_regname (j));
- }
- }
- }
- /*if (reg_is_freeable (ins->sreg1) && prev_sreg1 >= 0 && reginfo [prev_sreg1].born_in >= i) {
- DEBUG (g_print ("freeable %s\n", mono_arch_regname (ins->sreg1)));
- mono_regstate_free_int (rs, ins->sreg1);
- }
- if (reg_is_freeable (ins->sreg2) && prev_sreg2 >= 0 && reginfo [prev_sreg2].born_in >= i) {
- DEBUG (g_print ("freeable %s\n", mono_arch_regname (ins->sreg2)));
- mono_regstate_free_int (rs, ins->sreg2);
- }*/
-
- //DEBUG (print_ins (i, ins));
-
- tmp = tmp->next;
- }
+ mono_local_regalloc (cfg, bb);
}
static void
emit_move_return_value (MonoInst *ins, guint32 *code)
{
/* Move return value to the target register */
- /* FIXME: do this in the local reg allocator */
+ /* FIXME: do more things in the local reg allocator */
switch (ins->opcode) {
case OP_VOIDCALL:
case OP_VOIDCALL_REG:
case CEE_CALL:
case OP_CALL_REG:
case OP_CALL_MEMBASE:
- sparc_mov_reg_reg (code, sparc_o0, ins->dreg);
+ g_assert (ins->dreg == sparc_o0);
break;
case OP_LCALL:
case OP_LCALL_REG:
case OP_LCALL_MEMBASE:
/*
* ins->dreg is the least significant reg due to the lreg: LCALL rule
- * in inssel.brg.
+ * in inssel-long32.brg.
*/
#ifdef SPARCV9
sparc_mov_reg_reg (code, sparc_o0, ins->dreg);
#else
- sparc_mov_reg_reg (code, sparc_o0, ins->dreg + 1);
- sparc_mov_reg_reg (code, sparc_o1, ins->dreg);
+ g_assert (ins->dreg == sparc_o1);
#endif
break;
case OP_FCALL:
}
/*
- * mono_sparc_get_vcall_slot_addr:
+ * mono_arch_get_vcall_slot_addr:
*
* Determine the vtable slot used by a virtual call.
*/
gpointer*
-mono_sparc_get_vcall_slot_addr (guint32 *code, gpointer *fp)
+mono_arch_get_vcall_slot_addr (guint8 *code8, gpointer *regs)
{
+ guint32 *code = (guint32*)(gpointer)code8;
guint32 ins = code [0];
guint32 prev_ins = code [-1];
mono_sparc_flushw ();
- fp = (gpointer*)((guint8*)fp + MONO_SPARC_STACK_BIAS);
+ if (!mono_sparc_is_virtual_call (code))
+ return NULL;
if ((sparc_inst_op (ins) == 0x2) && (sparc_inst_op3 (ins) == 0x38)) {
if ((sparc_inst_op (prev_ins) == 0x3) && (sparc_inst_op3 (prev_ins) == 0 || sparc_inst_op3 (prev_ins) == 0xb)) {
g_assert (sparc_inst_rd (prev_ins) == sparc_inst_rs1 (ins));
g_assert ((base >= sparc_o0) && (base <= sparc_i7));
-
- base_val = fp [base - 16];
+
+ base_val = regs [base - sparc_o0];
return (gpointer)((guint8*)base_val + disp);
}
else
g_assert_not_reached ();
- return FALSE;
+ return NULL;
}
/*
}
void
-mono_arch_emit_this_vret_args (MonoCompile *cfg, MonoCallInst *inst, int this_reg, int this_type, int vt_reg)
+mono_arch_emit_this_vret_args (MonoCompile *cfg, MonoCallInst *call, int this_reg, int this_type, int vt_reg)
{
int this_out_reg = sparc_o0;
MonoInst *ins;
MONO_INST_NEW (cfg, ins, OP_SETREG);
ins->sreg1 = vt_reg;
- ins->dreg = sparc_o0;
+ ins->dreg = mono_regstate_next_int (cfg->rs);
mono_bblock_add_inst (cfg->cbb, ins);
+
+ mono_call_inst_add_outarg_reg (call, ins->dreg, sparc_o0, FALSE);
+
this_out_reg = sparc_o1;
#else
/* Set the 'struct/union return pointer' location on the stack */
MONO_INST_NEW (cfg, this, OP_SETREG);
this->type = this_type;
this->sreg1 = this_reg;
- this->dreg = this_out_reg;
+ this->dreg = mono_regstate_next_int (cfg->rs);
mono_bblock_add_inst (cfg->cbb, this);
+
+ mono_call_inst_add_outarg_reg (call, this->dreg, this_out_reg, FALSE);
}
}
projects / mono.git / blobdiff