/*
* Copyright 2013 Vadim Girlin <vadimgirlin@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Authors:
* Vadim Girlin
*/
#ifndef R600_SB_IR_H_
#define R600_SB_IR_H_
#include <algorithm>
#include <stdint.h>
#include <vector>
#include <set>
#include <algorithm>
#include "sb_bc.h"
namespace r600_sb {
enum special_regs {
SV_ALU_PRED = 128,
SV_EXEC_MASK,
SV_AR_INDEX,
SV_VALID_MASK
};
class node;
class value;
class shader;
struct sel_chan
{
unsigned id;
sel_chan(unsigned id = 0) : id(id) {}
sel_chan(unsigned sel, unsigned chan) : id(((sel << 2) | chan) + 1) {}
unsigned sel() const { return sel(id); }
unsigned chan() const {return chan(id); }
operator unsigned() const {return id;}
static unsigned sel(unsigned idx) { return (idx-1) >> 2; }
static unsigned chan(unsigned idx) { return (idx-1) & 3; }
};
inline sb_ostream& operator <<(sb_ostream& o, sel_chan r) {
static const char * ch = "xyzw";
o << r.sel() << "." << ch[r.chan()];
return o;
}
typedef std::vector<value*> vvec;
class sb_pool {
protected:
static const unsigned SB_POOL_ALIGN = 8;
static const unsigned SB_POOL_DEFAULT_BLOCK_SIZE = (1 << 16);
typedef std::vector<void*> block_vector;
unsigned block_size;
block_vector blocks;
unsigned total_size;
public:
sb_pool(unsigned block_size = SB_POOL_DEFAULT_BLOCK_SIZE)
: block_size(block_size), blocks(), total_size() {}
virtual ~sb_pool() { free_all(); }
void* allocate(unsigned sz);
protected:
void free_all();
};
template <typename V, typename Comp = std::less<V> >
class sb_set {
typedef std::vector<V> data_vector;
data_vector vec;
public:
typedef typename data_vector::iterator iterator;
typedef typename data_vector::const_iterator const_iterator;
sb_set() : vec() {}
~sb_set() { }
iterator begin() { return vec.begin(); }
iterator end() { return vec.end(); }
const_iterator begin() const { return vec.begin(); }
const_iterator end() const { return vec.end(); }
void add_set(const sb_set& s) {
data_vector t;
t.reserve(vec.size() + s.vec.size());
std::set_union(vec.begin(), vec.end(), s.vec.begin(), s.vec.end(),
std::inserter(t, t.begin()), Comp());
vec.swap(t);
}
iterator lower_bound(const V& v) {
return std::lower_bound(vec.begin(), vec.end(), v, Comp());
}
std::pair<iterator, bool> insert(const V& v) {
iterator P = lower_bound(v);
if (P != vec.end() && is_equal(*P, v))
return std::make_pair(P, false);
return std::make_pair(vec.insert(P, v), true);
}
unsigned erase(const V& v) {
iterator P = lower_bound(v);
if (P == vec.end() || !is_equal(*P, v))
return 0;
vec.erase(P);
return 1;
}
void clear() { vec.clear(); }
bool empty() { return vec.empty(); }
bool is_equal(const V& v1, const V& v2) {
return !Comp()(v1, v2) && !Comp()(v2, v1);
}
iterator find(const V& v) {
iterator P = lower_bound(v);
return (P != vec.end() && is_equal(*P, v)) ? P : vec.end();
}
unsigned size() { return vec.size(); }
void erase(iterator I) { vec.erase(I); }
};
template <typename K, typename V, typename KComp = std::less<K> >
class sb_map {
typedef std::pair<K, V> datatype;
struct Comp {
bool operator()(const datatype &v1, const datatype &v2) {
return KComp()(v1.first, v2.first);
}
};
typedef sb_set<datatype, Comp> dataset;
dataset set;
public:
sb_map() : set() {}
typedef typename dataset::iterator iterator;
iterator begin() { return set.begin(); }
iterator end() { return set.end(); }
void clear() { set.clear(); }
V& operator[](const K& key) {
datatype P = std::make_pair(key, V());
iterator F = set.find(P);
if (F == set.end()) {
return (*(set.insert(P).first)).second;
} else {
return (*F).second;
}
}
std::pair<iterator, bool> insert(const datatype& d) {
return set.insert(d);
}
iterator find(const K& key) {
return set.find(std::make_pair(key, V()));
}
unsigned erase(const K& key) {
return set.erase(std::make_pair(key, V()));
}
void erase(iterator I) {
set.erase(I);
}
};
class sb_bitset {
typedef uint32_t basetype;
static const unsigned bt_bits = sizeof(basetype) << 3;
std::vector<basetype> data;
unsigned bit_size;
public:
sb_bitset() : data(), bit_size() {}
bool get(unsigned id);
void set(unsigned id, bool bit = true);
bool set_chk(unsigned id, bool bit = true);
void clear();
void resize(unsigned size);
unsigned size() { return bit_size; }
unsigned find_bit(unsigned start = 0);
void swap(sb_bitset & bs2);
bool operator==(const sb_bitset &bs2);
bool operator!=(const sb_bitset &bs2) { return !(*this == bs2); }
sb_bitset& operator|=(const sb_bitset &bs2) {
if (bit_size < bs2.bit_size) {
resize(bs2.bit_size);
}
for (unsigned i = 0, c = std::min(data.size(), bs2.data.size()); i < c;
++i) {
data[i] |= bs2.data[i];
}
return *this;
}
sb_bitset& operator&=(const sb_bitset &bs2);
sb_bitset& mask(const sb_bitset &bs2);
friend sb_bitset operator|(const sb_bitset &b1, const sb_bitset &b2) {
sb_bitset nbs(b1);
nbs |= b2;
return nbs;
}
};
class value;
enum value_kind {
VLK_REG,
VLK_REL_REG,
VLK_SPECIAL_REG,
VLK_TEMP,
VLK_CONST,
VLK_KCACHE,
VLK_PARAM,
VLK_SPECIAL_CONST,
VLK_UNDEF
};
class sb_value_pool : protected sb_pool {
unsigned aligned_elt_size;
public:
sb_value_pool(unsigned elt_size, unsigned block_elts = 256)
: sb_pool(block_elts * (aligned_elt_size = ((elt_size +
SB_POOL_ALIGN - 1) & ~(SB_POOL_ALIGN - 1)))) {}
virtual ~sb_value_pool() { delete_all(); }
value* create(value_kind k, sel_chan regid, unsigned ver);
value* operator[](unsigned id) {
unsigned offset = id * aligned_elt_size;
unsigned block_id;
if (offset < block_size) {
block_id = 0;
} else {
block_id = offset / block_size;
offset = offset % block_size;
}
return (value*)((char*)blocks[block_id] + offset);
}
unsigned size() { return total_size / aligned_elt_size; }
protected:
void delete_all();
};
class sb_value_set {
sb_bitset bs;
public:
sb_value_set() : bs() {}
class iterator {
sb_value_pool &vp;
sb_value_set *s;
unsigned nb;
public:
iterator(shader &sh, sb_value_set *s, unsigned nb = 0);
iterator& operator++() {
if (nb + 1 < s->bs.size())
nb = s->bs.find_bit(nb + 1);
else
nb = s->bs.size();
return *this;
}
bool operator !=(const iterator &i) {
return s != i.s || nb != i.nb;
}
bool operator ==(const iterator &i) { return !(*this != i); }
value* operator *() {
return vp[nb];
}
};
iterator begin(shader &sh) {
return iterator(sh, this, bs.size() ? bs.find_bit(0) : 0);
}
iterator end(shader &sh) { return iterator(sh, this, bs.size()); }
bool add_set_checked(sb_value_set & s2);
void add_set(sb_value_set & s2) {
if (bs.size() < s2.bs.size())
bs.resize(s2.bs.size());
bs |= s2.bs;
}
void remove_set(sb_value_set & s2);
bool add_vec(vvec &vv);
bool add_val(value *v);
bool contains(value *v);
bool remove_val(value *v);
bool remove_vec(vvec &vv);
void clear();
bool empty();
};
typedef sb_value_set val_set;
struct gpr_array {
sel_chan base_gpr; // original gpr
sel_chan gpr; // assigned by regalloc
unsigned array_size;
gpr_array(sel_chan base_gpr, unsigned array_size) : base_gpr(base_gpr),
array_size(array_size) {}
unsigned hash() { return (base_gpr << 10) * array_size; }
val_set interferences;
vvec refs;
bool is_dead();
};
typedef std::vector<gpr_array*> regarray_vec;
enum value_flags {
VLF_UNDEF = (1 << 0),
VLF_READONLY = (1 << 1),
VLF_DEAD = (1 << 2),
VLF_PIN_REG = (1 << 3),
VLF_PIN_CHAN = (1 << 4),
// opposite to alu clause local value - goes through alu clause boundary
// (can't use temp gpr, can't recolor in the alu scheduler, etc)
VLF_GLOBAL = (1 << 5),
VLF_FIXED = (1 << 6),
VLF_PVPS = (1 << 7),
VLF_PREALLOC = (1 << 8)
};
inline value_flags operator |(value_flags l, value_flags r) {
return (value_flags)((unsigned)l|(unsigned)r);
}
inline value_flags operator &(value_flags l, value_flags r) {
return (value_flags)((unsigned)l&(unsigned)r);
}
inline value_flags operator ~(value_flags l) {
return (value_flags)(~(unsigned)l);
}
inline value_flags& operator |=(value_flags &l, value_flags r) {
l = l | r;
return l;
}
inline value_flags& operator &=(value_flags &l, value_flags r) {
l = l & r;
return l;
}
struct value;
sb_ostream& operator << (sb_ostream &o, value &v);
typedef uint32_t value_hash;
enum use_kind {
UK_SRC,
UK_SRC_REL,
UK_DST_REL,
UK_MAYDEF,
UK_MAYUSE,
UK_PRED,
UK_COND
};
struct use_info {
use_info *next;
node *op;
use_kind kind;
int arg;
use_info(node *n, use_kind kind, int arg, use_info* next)
: next(next), op(n), kind(kind), arg(arg) {}
};
enum constraint_kind {
CK_SAME_REG,
CK_PACKED_BS,
CK_PHI
};
class shader;
class sb_value_pool;
class ra_chunk;
class ra_constraint;
class value {
protected:
value(unsigned sh_id, value_kind k, sel_chan select, unsigned ver = 0)
: kind(k), flags(),
rel(), array(),
version(ver), select(select), pin_gpr(select), gpr(),
gvn_source(), ghash(),
def(), adef(), uses(), constraint(), chunk(),
literal_value(), uid(sh_id) {}
~value() { delete_uses(); }
friend class sb_value_pool;
public:
value_kind kind;
value_flags flags;
vvec mdef;
vvec muse;
value *rel;
gpr_array *array;
unsigned version;
sel_chan select;
sel_chan pin_gpr;
sel_chan gpr;
value *gvn_source;
value_hash ghash;
node *def, *adef;
use_info *uses;
ra_constraint *constraint;
ra_chunk *chunk;
literal literal_value;
bool is_const() { return kind == VLK_CONST || kind == VLK_UNDEF; }
bool is_AR() {
return is_special_reg() && select == sel_chan(SV_AR_INDEX, 0);
}
node* any_def() {
assert(!(def && adef));
return def ? def : adef;
}
value* gvalue() {
value *v = this;
while (v->gvn_source && v != v->gvn_source)
// FIXME we really shouldn't have such chains
v = v->gvn_source;
return v;
}
bool is_float_0_or_1() {
value *v = gvalue();
return v->is_const() && (v->literal_value == literal(0)
|| v->literal_value == literal(1.0f));
}
bool is_undef() { return gvalue()->kind == VLK_UNDEF; }
bool is_any_gpr() {
return (kind == VLK_REG || kind == VLK_TEMP);
}
bool is_agpr() {
return array && is_any_gpr();
}
// scalar gpr, as opposed to element of gpr array
bool is_sgpr() {
return !array && is_any_gpr();
}
bool is_special_reg() { return kind == VLK_SPECIAL_REG; }
bool is_any_reg() { return is_any_gpr() || is_special_reg(); }
bool is_kcache() { return kind == VLK_KCACHE; }
bool is_rel() { return kind == VLK_REL_REG; }
bool is_readonly() { return flags & VLF_READONLY; }
bool is_chan_pinned() { return flags & VLF_PIN_CHAN; }
bool is_reg_pinned() { return flags & VLF_PIN_REG; }
bool is_global();
void set_global();
void set_prealloc();
bool is_prealloc();
bool is_fixed();
void fix();
bool is_dead() { return flags & VLF_DEAD; }
literal & get_const_value() {
value *v = gvalue();
assert(v->is_const());
return v->literal_value;
}
// true if needs to be encoded as literal in alu
bool is_literal() {
return is_const()
&& literal_value != literal(0)
&& literal_value != literal(1)
&& literal_value != literal(-1)
&& literal_value != literal(0.5)
&& literal_value != literal(1.0);
}
void add_use(node *n, use_kind kind, int arg);
value_hash hash();
value_hash rel_hash();
void assign_source(value *v) {
assert(!gvn_source || gvn_source == this);
gvn_source = v->gvalue();
}
bool v_equal(value *v) { return gvalue() == v->gvalue(); }
unsigned use_count();
void delete_uses();
sel_chan get_final_gpr() {
if (array && array->gpr) {
int reg_offset = select.sel() - array->base_gpr.sel();
if (rel && rel->is_const())
reg_offset += rel->get_const_value().i;
return array->gpr + (reg_offset << 2);
} else {
return gpr;
}
}
unsigned get_final_chan() {
if (array) {
assert(array->gpr);
return array->gpr.chan();
} else {
assert(gpr);
return gpr.chan();
}
}
val_set interferences;
unsigned uid;
};
class expr_handler;
class value_table {
typedef std::vector<value*> vt_item;
typedef std::vector<vt_item> vt_table;
expr_handler &ex;
unsigned size_bits;
unsigned size;
unsigned size_mask;
vt_table hashtable;
unsigned cnt;
public:
value_table(expr_handler &ex, unsigned size_bits = 10)
: ex(ex), size_bits(size_bits), size(1u << size_bits),
size_mask(size - 1), hashtable(size), cnt() {}
~value_table() {}
void add_value(value* v);
bool expr_equal(value* l, value* r);
unsigned count() { return cnt; }
void get_values(vvec & v);
};
class sb_context;
enum node_type {
NT_UNKNOWN,
NT_LIST,
NT_OP,
NT_REGION,
NT_REPEAT,
NT_DEPART,
NT_IF,
};
enum node_subtype {
NST_UNKNOWN,
NST_LIST,
NST_ALU_GROUP,
NST_ALU_CLAUSE,
NST_ALU_INST,
NST_ALU_PACKED_INST,
NST_CF_INST,
NST_FETCH_INST,
NST_TEX_CLAUSE,
NST_VTX_CLAUSE,
NST_BB,
NST_PHI,
NST_PSI,
NST_COPY,
NST_LOOP_PHI_CONTAINER,
NST_LOOP_CONTINUE,
NST_LOOP_BREAK
};
enum node_flags {
NF_EMPTY = 0,
NF_DEAD = (1 << 0),
NF_REG_CONSTRAINT = (1 << 1),
NF_CHAN_CONSTRAINT = (1 << 2),
NF_ALU_4SLOT = (1 << 3),
NF_CONTAINER = (1 << 4),
NF_COPY_MOV = (1 << 5),
NF_DONT_KILL = (1 << 6),
NF_DONT_HOIST = (1 << 7),
NF_DONT_MOVE = (1 << 8),
// for KILLxx - we want to schedule them as early as possible
NF_SCHEDULE_EARLY = (1 << 9)
};
inline node_flags operator |(node_flags l, node_flags r) {
return (node_flags)((unsigned)l|(unsigned)r);
}
inline node_flags& operator |=(node_flags &l, node_flags r) {
l = l | r;
return l;
}
inline node_flags& operator &=(node_flags &l, node_flags r) {
l = (node_flags)((unsigned)l & (unsigned)r);
return l;
}
inline node_flags operator ~(node_flags r) {
return (node_flags)~(unsigned)r;
}
struct node_stats {
unsigned alu_count;
unsigned alu_kill_count;
unsigned alu_copy_mov_count;
unsigned cf_count;
unsigned fetch_count;
unsigned region_count;
unsigned loop_count;
unsigned phi_count;
unsigned loop_phi_count;
unsigned depart_count;
unsigned repeat_count;
unsigned if_count;
node_stats() : alu_count(), alu_kill_count(), alu_copy_mov_count(),
cf_count(), fetch_count(), region_count(),
loop_count(), phi_count(), loop_phi_count(), depart_count(),
repeat_count(), if_count() {}
void dump();
};
class shader;
class vpass;
class container_node;
class region_node;
class node {
protected:
node(node_type nt, node_subtype nst, node_flags flags = NF_EMPTY)
: prev(), next(), parent(),
type(nt), subtype(nst), flags(flags),
pred(), dst(), src() {}
virtual ~node() {};
public:
node *prev, *next;
container_node *parent;
node_type type;
node_subtype subtype;
node_flags flags;
value *pred;
vvec dst;
vvec src;
virtual bool is_valid() { return true; }
virtual bool accept(vpass &p, bool enter);
void insert_before(node *n);
void insert_after(node *n);
void replace_with(node *n);
void remove();
virtual value_hash hash();
value_hash hash_src();
virtual bool fold_dispatch(expr_handler *ex);
bool is_container() { return flags & NF_CONTAINER; }
bool is_alu_packed() { return subtype == NST_ALU_PACKED_INST; }
bool is_alu_inst() { return subtype == NST_ALU_INST; }
bool is_alu_group() { return subtype == NST_ALU_GROUP; }
bool is_alu_clause() { return subtype == NST_ALU_CLAUSE; }
bool is_fetch_clause() {
return subtype == NST_TEX_CLAUSE || subtype == NST_VTX_CLAUSE;
}
bool is_copy() { return subtype == NST_COPY; }
bool is_copy_mov() { return flags & NF_COPY_MOV; }
bool is_any_alu() { return is_alu_inst() || is_alu_packed() || is_copy(); }
bool is_fetch_inst() { return subtype == NST_FETCH_INST; }
bool is_cf_inst() { return subtype == NST_CF_INST; }
bool is_region() { return type == NT_REGION; }
bool is_depart() { return type == NT_DEPART; }
bool is_repeat() { return type == NT_REPEAT; }
bool is_if() { return type == NT_IF; }
bool is_bb() { return subtype == NST_BB; }
bool is_phi() { return subtype == NST_PHI; }
bool is_dead() { return flags & NF_DEAD; }
bool is_cf_op(unsigned op);
bool is_alu_op(unsigned op);
bool is_fetch_op(unsigned op);
unsigned cf_op_flags();
unsigned alu_op_flags();
unsigned alu_op_slot_flags();
unsigned fetch_op_flags();
bool is_mova();
bool is_pred_set();
bool vec_uses_ar(vvec &vv) {
for (vvec::iterator I = vv.begin(), E = vv.end(); I != E; ++I) {
value *v = *I;
if (v && v->rel && !v->rel->is_const())
return true;
}
return false;
}
bool uses_ar() {
return vec_uses_ar(dst) || vec_uses_ar(src);
}
region_node* get_parent_region();
friend class shader;
};
class container_node : public node {
public:
container_node(node_type nt = NT_LIST, node_subtype nst = NST_LIST,
node_flags flags = NF_EMPTY)
: node(nt, nst, flags | NF_CONTAINER), first(), last(),
live_after(), live_before() {}
// child items list
node *first, *last;
val_set live_after;
val_set live_before;
class iterator {
node *p;
public:
iterator(node *pp = NULL) : p(pp) {}
iterator & operator ++() { p = p->next; return *this;}
iterator & operator --() { p = p->prev; return *this;}
node* operator *() { return p; }
node* operator ->() { return p; }
const iterator advance(int n) {
if (!n) return *this;
iterator I(p);
if (n > 0) while (n--) ++I;
else while (n++) --I;
return I;
}
const iterator operator +(int n) { return advance(n); }
const iterator operator -(int n) { return advance(-n); }
bool operator !=(const iterator &i) { return p != i.p; }
bool operator ==(const iterator &i) { return p == i.p; }
};
class riterator {
iterator i;
public:
riterator(node *p = NULL) : i(p) {}
riterator & operator ++() { --i; return *this;}
riterator & operator --() { ++i; return *this;}
node* operator *() { return *i; }
node* operator ->() { return *i; }
bool operator !=(const riterator &r) { return i != r.i; }
bool operator ==(const riterator &r) { return i == r.i; }
};
iterator begin() { return first; }
iterator end() { return NULL; }
riterator rbegin() { return last; }
riterator rend() { return NULL; }
bool empty() { assert(first != NULL || first == last); return !first; }
unsigned count();
// used with node containers that represent shceduling queues
// ignores copies and takes into account alu_packed_node items
unsigned real_alu_count();
void push_back(node *n);
void push_front(node *n);
void insert_node_before(node *s, node *n);
void insert_node_after(node *s, node *n);
void append_from(container_node *c);
// remove range [b..e) from some container and assign to this container
void move(iterator b, iterator e);
void expand();
void expand(container_node *n);
void remove_node(node *n);
node *cut(iterator b, iterator e);
void clear() { first = last = NULL; }
virtual bool is_valid() { return true; }
virtual bool accept(vpass &p, bool enter);
virtual bool fold_dispatch(expr_handler *ex);
node* front() { return first; }
node* back() { return last; }
void collect_stats(node_stats &s);
friend class shader;
};
typedef container_node::iterator node_iterator;
typedef container_node::riterator node_riterator;
class alu_group_node : public container_node {
protected:
alu_group_node() : container_node(NT_LIST, NST_ALU_GROUP), literals() {}
public:
std::vector<literal> literals;
virtual bool is_valid() { return subtype == NST_ALU_GROUP; }
virtual bool accept(vpass &p, bool enter);
unsigned literal_chan(literal l) {
std::vector<literal>::iterator F =
std::find(literals.begin(), literals.end(), l);
assert(F != literals.end());
return F - literals.begin();
}
friend class shader;
};
class cf_node : public container_node {
protected:
cf_node() : container_node(NT_OP, NST_CF_INST), jump_target(),
jump_after_target() {};
public:
bc_cf bc;
cf_node *jump_target;
bool jump_after_target;
virtual bool is_valid() { return subtype == NST_CF_INST; }
virtual bool accept(vpass &p, bool enter);
virtual bool fold_dispatch(expr_handler *ex);
void jump(cf_node *c) { jump_target = c; jump_after_target = false; }
void jump_after(cf_node *c) { jump_target = c; jump_after_target = true; }
friend class shader;
};
class alu_node : public node {
protected:
alu_node() : node(NT_OP, NST_ALU_INST) {};
public:
bc_alu bc;
virtual bool is_valid() { return subtype == NST_ALU_INST; }
virtual bool accept(vpass &p, bool enter);
virtual bool fold_dispatch(expr_handler *ex);
unsigned forced_bank_swizzle() {
return ((bc.op_ptr->flags & AF_INTERP) && (bc.slot_flags == AF_4V)) ?
VEC_210 : 0;
}
// return param index + 1 if instruction references interpolation param,
// otherwise 0
unsigned interp_param();
alu_group_node *get_alu_group_node();
friend class shader;
};
// for multi-slot instrs - DOT/INTERP/... (maybe useful for 64bit pairs later)
class alu_packed_node : public container_node {
protected:
alu_packed_node() : container_node(NT_OP, NST_ALU_PACKED_INST) {}
public:
const alu_op_info* op_ptr() {
return static_cast<alu_node*>(first)->bc.op_ptr;
}
unsigned op() { return static_cast<alu_node*>(first)->bc.op; }
void init_args(bool repl);
virtual bool is_valid() { return subtype == NST_ALU_PACKED_INST; }
virtual bool accept(vpass &p, bool enter);
virtual bool fold_dispatch(expr_handler *ex);
unsigned get_slot_mask();
void update_packed_items(sb_context &ctx);
friend class shader;
};
class fetch_node : public node {
protected:
fetch_node() : node(NT_OP, NST_FETCH_INST) {};
public:
bc_fetch bc;
virtual bool is_valid() { return subtype == NST_FETCH_INST; }
virtual bool accept(vpass &p, bool enter);
virtual bool fold_dispatch(expr_handler *ex);
bool uses_grad() { return bc.op_ptr->flags & FF_USEGRAD; }
friend class shader;
};
class region_node;
class repeat_node : public container_node {
protected:
repeat_node(region_node *target, unsigned id)
: container_node(NT_REPEAT, NST_LIST), target(target), rep_id(id) {}
public:
region_node *target;
unsigned rep_id;
virtual bool accept(vpass &p, bool enter);
friend class shader;
};
class depart_node : public container_node {
protected:
depart_node(region_node *target, unsigned id)
: container_node(NT_DEPART, NST_LIST), target(target), dep_id(id) {}
public:
region_node *target;
unsigned dep_id;
virtual bool accept(vpass &p, bool enter);
friend class shader;
};
class if_node : public container_node {
protected:
if_node() : container_node(NT_IF, NST_LIST), cond() {};
public:
value *cond; // glued to pseudo output (dst[2]) of the PRED_SETxxx
virtual bool accept(vpass &p, bool enter);
friend class shader;
};
typedef std::vector<depart_node*> depart_vec;
typedef std::vector<repeat_node*> repeat_vec;
class region_node : public container_node {
protected:
region_node(unsigned id) : container_node(NT_REGION, NST_LIST), region_id(id),
loop_phi(), phi(), vars_defined(), departs(), repeats() {}
public:
unsigned region_id;
container_node *loop_phi;
container_node *phi;
val_set vars_defined;
depart_vec departs;
repeat_vec repeats;
virtual bool accept(vpass &p, bool enter);
unsigned dep_count() { return departs.size(); }
unsigned rep_count() { return repeats.size() + 1; }
bool is_loop() { return !repeats.empty(); }
container_node* get_entry_code_location() {
node *p = first;
while (p && (p->is_depart() || p->is_repeat()))
p = static_cast<container_node*>(p)->first;
container_node *c = static_cast<container_node*>(p);
if (c->is_bb())
return c;
else
return c->parent;
}
void expand_depart(depart_node *d);
void expand_repeat(repeat_node *r);
friend class shader;
};
class bb_node : public container_node {
protected:
bb_node(unsigned id, unsigned loop_level)
: container_node(NT_LIST, NST_BB), id(id), loop_level(loop_level) {}
public:
unsigned id;
unsigned loop_level;
virtual bool accept(vpass &p, bool enter);
friend class shader;
};
typedef std::vector<region_node*> regions_vec;
typedef std::vector<bb_node*> bbs_vec;
typedef std::list<node*> sched_queue;
typedef sched_queue::iterator sq_iterator;
typedef std::vector<node*> node_vec;
typedef std::list<node*> node_list;
typedef std::set<node*> node_set;
} // namespace r600_sb
#endif /* R600_SB_IR_H_ */