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nv50_ir.cpp
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/*
* Copyright 2011 Christoph Bumiller
*
* 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
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* 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 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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS 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.
*/
#include "nv50_ir.h"
#include "nv50_ir_target.h"
#include "nv50_ir_driver.h"
namespace nv50_ir {
Modifier::Modifier(operation op)
{
switch (op) {
case OP_NEG: bits = NV50_IR_MOD_NEG; break;
case OP_ABS: bits = NV50_IR_MOD_ABS; break;
case OP_SAT: bits = NV50_IR_MOD_SAT; break;
case OP_NOT: bits = NV50_IR_MOD_NOT; break;
default:
bits = 0;
break;
}
}
Modifier Modifier::operator*(const Modifier m) const
{
unsigned int a, b, c;
b = m.bits;
if (this->bits & NV50_IR_MOD_ABS)
b &= ~NV50_IR_MOD_NEG;
a = (this->bits ^ b) & (NV50_IR_MOD_NOT | NV50_IR_MOD_NEG);
c = (this->bits | m.bits) & (NV50_IR_MOD_ABS | NV50_IR_MOD_SAT);
return Modifier(a | c);
}
ValueRef::ValueRef(Value *v) : value(NULL), insn(NULL)
{
indirect[0] = -1;
indirect[1] = -1;
usedAsPtr = false;
set(v);
}
ValueRef::ValueRef(const ValueRef& ref) : value(NULL), insn(ref.insn)
{
set(ref);
usedAsPtr = ref.usedAsPtr;
}
ValueRef::~ValueRef()
{
this->set(NULL);
}
bool ValueRef::getImmediate(ImmediateValue &imm) const
{
const ValueRef *src = this;
Modifier m;
DataType type = src->insn->sType;
while (src) {
if (src->mod) {
if (src->insn->sType != type)
break;
m *= src->mod;
}
if (src->getFile() == FILE_IMMEDIATE) {
imm = *(src->value->asImm());
// The immediate's type isn't required to match its use, it's
// more of a hint; applying a modifier makes use of that hint.
imm.reg.type = type;
m.applyTo(imm);
return true;
}
Instruction *insn = src->value->getUniqueInsn();
if (insn && insn->op == OP_MOV) {
src = &insn->src(0);
if (src->mod)
WARN("OP_MOV with modifier encountered !\n");
} else {
src = NULL;
}
}
return false;
}
ValueDef::ValueDef(Value *v) : value(NULL), origin(NULL), insn(NULL)
{
set(v);
}
ValueDef::ValueDef(const ValueDef& def) : value(NULL), origin(NULL), insn(NULL)
{
set(def.get());
}
ValueDef::~ValueDef()
{
this->set(NULL);
}
void
ValueRef::set(const ValueRef &ref)
{
this->set(ref.get());
mod = ref.mod;
indirect[0] = ref.indirect[0];
indirect[1] = ref.indirect[1];
}
void
ValueRef::set(Value *refVal)
{
if (value == refVal)
return;
if (value)
value->uses.erase(this);
if (refVal)
refVal->uses.insert(this);
value = refVal;
}
void
ValueDef::set(Value *defVal)
{
if (value == defVal)
return;
if (value)
value->defs.remove(this);
if (defVal)
defVal->defs.push_back(this);
value = defVal;
}
// Check if we can replace this definition's value by the value in @rep,
// including the source modifiers, i.e. make sure that all uses support
// @rep.mod.
bool
ValueDef::mayReplace(const ValueRef &rep)
{
if (!rep.mod)
return true;
if (!insn || !insn->bb) // Unbound instruction ?
return false;
const Target *target = insn->bb->getProgram()->getTarget();
for (Value::UseIterator it = value->uses.begin(); it != value->uses.end();
++it) {
Instruction *insn = (*it)->getInsn();
int s = -1;
for (int i = 0; insn->srcExists(i); ++i) {
if (insn->src(i).get() == value) {
// If there are multiple references to us we'd have to check if the
// combination of mods is still supported, but just bail for now.
if (&insn->src(i) != (*it))
return false;
s = i;
}
}
assert(s >= 0); // integrity of uses list
if (!target->isModSupported(insn, s, rep.mod))
return false;
}
return true;
}
void
ValueDef::replace(const ValueRef &repVal, bool doSet)
{
assert(mayReplace(repVal));
if (value == repVal.get())
return;
while (!value->uses.empty()) {
ValueRef *ref = *value->uses.begin();
ref->set(repVal.get());
ref->mod *= repVal.mod;
}
if (doSet)
set(repVal.get());
}
Value::Value() : id(-1)
{
join = this;
memset(®, 0, sizeof(reg));
reg.size = 4;
}
LValue::LValue(Function *fn, DataFile file)
{
reg.file = file;
reg.size = (file != FILE_PREDICATE) ? 4 : 1;
reg.data.id = -1;
compMask = 0;
compound = 0;
ssa = 0;
fixedReg = 0;
noSpill = 0;
fn->add(this, this->id);
}
LValue::LValue(Function *fn, LValue *lval)
{
assert(lval);
reg.file = lval->reg.file;
reg.size = lval->reg.size;
reg.data.id = -1;
compMask = 0;
compound = 0;
ssa = 0;
fixedReg = 0;
noSpill = 0;
fn->add(this, this->id);
}
LValue *
LValue::clone(ClonePolicy<Function>& pol) const
{
LValue *that = new_LValue(pol.context(), reg.file);
pol.set<Value>(this, that);
that->reg.size = this->reg.size;
that->reg.type = this->reg.type;
that->reg.data = this->reg.data;
return that;
}
bool
LValue::isUniform() const
{
if (defs.size() > 1)
return false;
Instruction *insn = getInsn();
if (!insn)
return false;
// let's not try too hard here for now ...
return !insn->srcExists(1) && insn->getSrc(0)->isUniform();
}
Symbol::Symbol(Program *prog, DataFile f, uint8_t fidx)
{
baseSym = NULL;
reg.file = f;
reg.fileIndex = fidx;
reg.data.offset = 0;
prog->add(this, this->id);
}
Symbol *
Symbol::clone(ClonePolicy<Function>& pol) const
{
Program *prog = pol.context()->getProgram();
Symbol *that = new_Symbol(prog, reg.file, reg.fileIndex);
pol.set<Value>(this, that);
that->reg.size = this->reg.size;
that->reg.type = this->reg.type;
that->reg.data = this->reg.data;
that->baseSym = this->baseSym;
return that;
}
bool
Symbol::isUniform() const
{
return
reg.file != FILE_SYSTEM_VALUE &&
reg.file != FILE_MEMORY_LOCAL &&
reg.file != FILE_SHADER_INPUT;
}
ImmediateValue::ImmediateValue(Program *prog, uint32_t uval)
{
memset(®, 0, sizeof(reg));
reg.file = FILE_IMMEDIATE;
reg.size = 4;
reg.type = TYPE_U32;
reg.data.u32 = uval;
prog->add(this, this->id);
}
ImmediateValue::ImmediateValue(Program *prog, float fval)
{
memset(®, 0, sizeof(reg));
reg.file = FILE_IMMEDIATE;
reg.size = 4;
reg.type = TYPE_F32;
reg.data.f32 = fval;
prog->add(this, this->id);
}
ImmediateValue::ImmediateValue(Program *prog, double dval)
{
memset(®, 0, sizeof(reg));
reg.file = FILE_IMMEDIATE;
reg.size = 8;
reg.type = TYPE_F64;
reg.data.f64 = dval;
prog->add(this, this->id);
}
ImmediateValue::ImmediateValue(const ImmediateValue *proto, DataType ty)
{
reg = proto->reg;
reg.type = ty;
reg.size = typeSizeof(ty);
}
ImmediateValue *
ImmediateValue::clone(ClonePolicy<Function>& pol) const
{
Program *prog = pol.context()->getProgram();
ImmediateValue *that = new_ImmediateValue(prog, 0u);
pol.set<Value>(this, that);
that->reg.size = this->reg.size;
that->reg.type = this->reg.type;
that->reg.data = this->reg.data;
return that;
}
bool
ImmediateValue::isInteger(const int i) const
{
switch (reg.type) {
case TYPE_S8:
return reg.data.s8 == i;
case TYPE_U8:
return reg.data.u8 == i;
case TYPE_S16:
return reg.data.s16 == i;
case TYPE_U16:
return reg.data.u16 == i;
case TYPE_S32:
case TYPE_U32:
return reg.data.s32 == i; // as if ...
case TYPE_S64:
case TYPE_U64:
return reg.data.s64 == i; // as if ...
case TYPE_F32:
return reg.data.f32 == static_cast<float>(i);
case TYPE_F64:
return reg.data.f64 == static_cast<double>(i);
default:
return false;
}
}
bool
ImmediateValue::isNegative() const
{
switch (reg.type) {
case TYPE_S8: return reg.data.s8 < 0;
case TYPE_S16: return reg.data.s16 < 0;
case TYPE_S32:
case TYPE_U32: return reg.data.s32 < 0;
case TYPE_F32: return reg.data.u32 & (1 << 31);
case TYPE_F64: return reg.data.u64 & (1ULL << 63);
default:
return false;
}
}
bool
ImmediateValue::isPow2() const
{
if (reg.type == TYPE_U64 || reg.type == TYPE_S64)
return util_is_power_of_two_or_zero64(reg.data.u64);
else
return util_is_power_of_two_or_zero(reg.data.u32);
}
void
ImmediateValue::applyLog2()
{
switch (reg.type) {
case TYPE_S8:
case TYPE_S16:
case TYPE_S32:
assert(!this->isNegative());
FALLTHROUGH;
case TYPE_U8:
case TYPE_U16:
case TYPE_U32:
reg.data.u32 = util_logbase2(reg.data.u32);
break;
case TYPE_S64:
assert(!this->isNegative());
FALLTHROUGH;
case TYPE_U64:
reg.data.u64 = util_logbase2_64(reg.data.u64);
break;
case TYPE_F32:
reg.data.f32 = log2f(reg.data.f32);
break;
case TYPE_F64:
reg.data.f64 = log2(reg.data.f64);
break;
default:
assert(0);
break;
}
}
bool
ImmediateValue::compare(CondCode cc, float fval) const
{
if (reg.type != TYPE_F32)
ERROR("immediate value is not of type f32");
switch (static_cast<CondCode>(cc & 7)) {
case CC_TR: return true;
case CC_FL: return false;
case CC_LT: return reg.data.f32 < fval;
case CC_LE: return reg.data.f32 <= fval;
case CC_GT: return reg.data.f32 > fval;
case CC_GE: return reg.data.f32 >= fval;
case CC_EQ: return reg.data.f32 == fval;
case CC_NE: return reg.data.f32 != fval;
default:
assert(0);
return false;
}
}
ImmediateValue&
ImmediateValue::operator=(const ImmediateValue &that)
{
this->reg = that.reg;
return (*this);
}
bool
Value::interfers(const Value *that) const
{
uint32_t idA, idB;
if (that->reg.file != reg.file || that->reg.fileIndex != reg.fileIndex)
return false;
if (this->asImm())
return false;
if (this->asSym()) {
idA = this->join->reg.data.offset;
idB = that->join->reg.data.offset;
} else {
idA = this->join->reg.data.id * MIN2(this->reg.size, 4);
idB = that->join->reg.data.id * MIN2(that->reg.size, 4);
}
if (idA < idB)
return (idA + this->reg.size > idB);
else
if (idA > idB)
return (idB + that->reg.size > idA);
else
return (idA == idB);
}
bool
Value::equals(const Value *that, bool strict) const
{
if (strict)
return this == that;
if (that->reg.file != reg.file || that->reg.fileIndex != reg.fileIndex)
return false;
if (that->reg.size != this->reg.size)
return false;
if (that->reg.data.id != this->reg.data.id)
return false;
return true;
}
bool
ImmediateValue::equals(const Value *that, bool strict) const
{
const ImmediateValue *imm = that->asImm();
if (!imm)
return false;
return reg.data.u64 == imm->reg.data.u64;
}
bool
Symbol::equals(const Value *that, bool strict) const
{
if (reg.file != that->reg.file || reg.fileIndex != that->reg.fileIndex)
return false;
assert(that->asSym());
if (this->baseSym != that->asSym()->baseSym)
return false;
if (reg.file == FILE_SYSTEM_VALUE)
return (this->reg.data.sv.sv == that->reg.data.sv.sv &&
this->reg.data.sv.index == that->reg.data.sv.index);
return this->reg.data.offset == that->reg.data.offset;
}
void Instruction::init()
{
next = prev = 0;
serial = 0;
cc = CC_ALWAYS;
rnd = ROUND_N;
cache = CACHE_CA;
subOp = 0;
saturate = 0;
join = 0;
exit = 0;
terminator = 0;
ftz = 0;
dnz = 0;
perPatch = 0;
fixed = 0;
encSize = 0;
ipa = 0;
mask = 0;
precise = 0;
lanes = 0xf;
postFactor = 0;
predSrc = -1;
flagsDef = -1;
flagsSrc = -1;
sched = 0;
bb = NULL;
}
Instruction::Instruction()
{
init();
op = OP_NOP;
dType = sType = TYPE_F32;
id = -1;
}
Instruction::Instruction(Function *fn, operation opr, DataType ty)
{
init();
op = opr;
dType = sType = ty;
fn->add(this, id);
}
Instruction::~Instruction()
{
if (bb) {
Function *fn = bb->getFunction();
bb->remove(this);
fn->allInsns.remove(id);
}
for (int s = 0; srcExists(s); ++s)
setSrc(s, NULL);
// must unlink defs too since the list pointers will get deallocated
for (int d = 0; defExists(d); ++d)
setDef(d, NULL);
}
void
Instruction::setDef(int i, Value *val)
{
int size = defs.size();
if (i >= size) {
defs.resize(i + 1);
while (size <= i)
defs[size++].setInsn(this);
}
defs[i].set(val);
}
void
Instruction::setSrc(int s, Value *val)
{
int size = srcs.size();
if (s >= size) {
srcs.resize(s + 1);
while (size <= s)
srcs[size++].setInsn(this);
}
srcs[s].set(val);
}
void
Instruction::setSrc(int s, const ValueRef& ref)
{
setSrc(s, ref.get());
srcs[s].mod = ref.mod;
}
void
Instruction::swapSources(int a, int b)
{
Value *value = srcs[a].get();
Modifier m = srcs[a].mod;
setSrc(a, srcs[b]);
srcs[b].set(value);
srcs[b].mod = m;
}
static inline void moveSourcesAdjustIndex(int8_t &index, int s, int delta)
{
if (index >= s)
index += delta;
else
if ((delta < 0) && (index >= (s + delta)))
index = -1;
}
// Moves sources [@s,last_source] by @delta.
// If @delta < 0, sources [@s - abs(@delta), @s) are erased.
void
Instruction::moveSources(const int s, const int delta)
{
if (delta == 0)
return;
assert(s + delta >= 0);
int k;
for (k = 0; srcExists(k); ++k) {
for (int i = 0; i < 2; ++i)
moveSourcesAdjustIndex(src(k).indirect[i], s, delta);
}
moveSourcesAdjustIndex(predSrc, s, delta);
moveSourcesAdjustIndex(flagsSrc, s, delta);
if (asTex()) {
TexInstruction *tex = asTex();
moveSourcesAdjustIndex(tex->tex.rIndirectSrc, s, delta);
moveSourcesAdjustIndex(tex->tex.sIndirectSrc, s, delta);
}
if (delta > 0) {
--k;
for (int p = k + delta; k >= s; --k, --p)
setSrc(p, src(k));
} else {
int p;
for (p = s; p < k; ++p)
setSrc(p + delta, src(p));
for (; (p + delta) < k; ++p)
setSrc(p + delta, NULL);
}
}
void
Instruction::takeExtraSources(int s, Value *values[3])
{
values[0] = getIndirect(s, 0);
if (values[0])
setIndirect(s, 0, NULL);
values[1] = getIndirect(s, 1);
if (values[1])
setIndirect(s, 1, NULL);
values[2] = getPredicate();
if (values[2])
setPredicate(cc, NULL);
}
void
Instruction::putExtraSources(int s, Value *values[3])
{
if (values[0])
setIndirect(s, 0, values[0]);
if (values[1])
setIndirect(s, 1, values[1]);
if (values[2])
setPredicate(cc, values[2]);
}
Instruction *
Instruction::clone(ClonePolicy<Function>& pol, Instruction *i) const
{
if (!i)
i = new_Instruction(pol.context(), op, dType);
#if !defined(NDEBUG) && defined(__cpp_rtti)
assert(typeid(*i) == typeid(*this));
#endif
pol.set<Instruction>(this, i);
i->sType = sType;
i->rnd = rnd;
i->cache = cache;
i->subOp = subOp;
i->saturate = saturate;
i->join = join;
i->exit = exit;
i->mask = mask;
i->ftz = ftz;
i->dnz = dnz;
i->ipa = ipa;
i->lanes = lanes;
i->perPatch = perPatch;
i->postFactor = postFactor;
for (int d = 0; defExists(d); ++d)
i->setDef(d, pol.get(getDef(d)));
for (int s = 0; srcExists(s); ++s) {
i->setSrc(s, pol.get(getSrc(s)));
i->src(s).mod = src(s).mod;
}
i->cc = cc;
i->predSrc = predSrc;
i->flagsDef = flagsDef;
i->flagsSrc = flagsSrc;
return i;
}
unsigned int
Instruction::defCount(unsigned int mask, bool singleFile) const
{
unsigned int i, n;
if (singleFile) {
unsigned int d = ffs(mask);
if (!d)
return 0;
for (i = d--; defExists(i); ++i)
if (getDef(i)->reg.file != getDef(d)->reg.file)
mask &= ~(1 << i);
}
for (n = 0, i = 0; this->defExists(i); ++i, mask >>= 1)
n += mask & 1;
return n;
}
unsigned int
Instruction::srcCount(unsigned int mask, bool singleFile) const
{
unsigned int i, n;
if (singleFile) {
unsigned int s = ffs(mask);
if (!s)
return 0;
for (i = s--; srcExists(i); ++i)
if (getSrc(i)->reg.file != getSrc(s)->reg.file)
mask &= ~(1 << i);
}
for (n = 0, i = 0; this->srcExists(i); ++i, mask >>= 1)
n += mask & 1;
return n;
}
bool
Instruction::setIndirect(int s, int dim, Value *value)
{
assert(this->srcExists(s));
int p = srcs[s].indirect[dim];
if (p < 0) {
if (!value)
return true;
p = srcs.size();
while (p > 0 && !srcExists(p - 1))
--p;
}
setSrc(p, value);
srcs[p].usedAsPtr = (value != 0);
srcs[s].indirect[dim] = value ? p : -1;
return true;
}
bool
Instruction::setPredicate(CondCode ccode, Value *value)
{
cc = ccode;
if (!value) {
if (predSrc >= 0) {
srcs[predSrc].set(NULL);
predSrc = -1;
}
return true;
}
if (predSrc < 0) {
predSrc = srcs.size();
while (predSrc > 0 && !srcExists(predSrc - 1))
--predSrc;
}
setSrc(predSrc, value);
return true;
}
bool
Instruction::writesPredicate() const
{
for (int d = 0; defExists(d); ++d)
if (getDef(d)->inFile(FILE_PREDICATE) || getDef(d)->inFile(FILE_FLAGS))
return true;
return false;
}
bool
Instruction::canCommuteDefSrc(const Instruction *i) const
{
for (int d = 0; defExists(d); ++d)
for (int s = 0; i->srcExists(s); ++s)
if (getDef(d)->interfers(i->getSrc(s)))
return false;
return true;
}
bool
Instruction::canCommuteDefDef(const Instruction *i) const
{
for (int d = 0; defExists(d); ++d)
for (int c = 0; i->defExists(c); ++c)
if (getDef(d)->interfers(i->getDef(c)))
return false;
return true;
}
bool
Instruction::isCommutationLegal(const Instruction *i) const
{
return canCommuteDefDef(i) &&
canCommuteDefSrc(i) &&
i->canCommuteDefSrc(this);
}
TexInstruction::TexInstruction(Function *fn, operation op)
: Instruction(fn, op, TYPE_F32), tex()
{
tex.rIndirectSrc = -1;
tex.sIndirectSrc = -1;
if (op == OP_TXF)
sType = TYPE_U32;
}
TexInstruction::~TexInstruction()
{
for (int c = 0; c < 3; ++c) {
dPdx[c].set(NULL);
dPdy[c].set(NULL);
}
for (int n = 0; n < 4; ++n)
for (int c = 0; c < 3; ++c)
offset[n][c].set(NULL);
}
TexInstruction *
TexInstruction::clone(ClonePolicy<Function>& pol, Instruction *i) const
{
TexInstruction *tex = (i ? static_cast<TexInstruction *>(i) :
new_TexInstruction(pol.context(), op));
Instruction::clone(pol, tex);
tex->tex = this->tex;
if (op == OP_TXD) {
for (unsigned int c = 0; c < tex->tex.target.getDim(); ++c) {
tex->dPdx[c].set(dPdx[c]);
tex->dPdy[c].set(dPdy[c]);
}
}
for (int n = 0; n < tex->tex.useOffsets; ++n)
for (int c = 0; c < 3; ++c)
tex->offset[n][c].set(offset[n][c]);
return tex;
}
const struct TexInstruction::Target::Desc TexInstruction::Target::descTable[] =
{
{ "1D", 1, 1, false, false, false },
{ "2D", 2, 2, false, false, false },
{ "2D_MS", 2, 3, false, false, false },
{ "3D", 3, 3, false, false, false },
{ "CUBE", 2, 3, false, true, false },
{ "1D_SHADOW", 1, 1, false, false, true },
{ "2D_SHADOW", 2, 2, false, false, true },
{ "CUBE_SHADOW", 2, 3, false, true, true },
{ "1D_ARRAY", 1, 2, true, false, false },
{ "2D_ARRAY", 2, 3, true, false, false },
{ "2D_MS_ARRAY", 2, 4, true, false, false },
{ "CUBE_ARRAY", 2, 4, true, true, false },
{ "1D_ARRAY_SHADOW", 1, 2, true, false, true },
{ "2D_ARRAY_SHADOW", 2, 3, true, false, true },
{ "RECT", 2, 2, false, false, false },
{ "RECT_SHADOW", 2, 2, false, false, true },
{ "CUBE_ARRAY_SHADOW", 2, 4, true, true, true },
{ "BUFFER", 1, 1, false, false, false },
};
const struct TexInstruction::ImgFormatDesc TexInstruction::formatTable[] =
{
{ "NONE", 0, { 0, 0, 0, 0 }, UINT },
{ "RGBA32F", 4, { 32, 32, 32, 32 }, FLOAT },
{ "RGBA16F", 4, { 16, 16, 16, 16 }, FLOAT },
{ "RG32F", 2, { 32, 32, 0, 0 }, FLOAT },
{ "RG16F", 2, { 16, 16, 0, 0 }, FLOAT },
{ "R11G11B10F", 3, { 11, 11, 10, 0 }, FLOAT },
{ "R32F", 1, { 32, 0, 0, 0 }, FLOAT },
{ "R16F", 1, { 16, 0, 0, 0 }, FLOAT },
{ "RGBA32UI", 4, { 32, 32, 32, 32 }, UINT },
{ "RGBA16UI", 4, { 16, 16, 16, 16 }, UINT },
{ "RGB10A2UI", 4, { 10, 10, 10, 2 }, UINT },
{ "RGBA8UI", 4, { 8, 8, 8, 8 }, UINT },
{ "RG32UI", 2, { 32, 32, 0, 0 }, UINT },
{ "RG16UI", 2, { 16, 16, 0, 0 }, UINT },
{ "RG8UI", 2, { 8, 8, 0, 0 }, UINT },
{ "R32UI", 1, { 32, 0, 0, 0 }, UINT },
{ "R16UI", 1, { 16, 0, 0, 0 }, UINT },
{ "R8UI", 1, { 8, 0, 0, 0 }, UINT },
{ "RGBA32I", 4, { 32, 32, 32, 32 }, SINT },
{ "RGBA16I", 4, { 16, 16, 16, 16 }, SINT },
{ "RGBA8I", 4, { 8, 8, 8, 8 }, SINT },
{ "RG32I", 2, { 32, 32, 0, 0 }, SINT },
{ "RG16I", 2, { 16, 16, 0, 0 }, SINT },
{ "RG8I", 2, { 8, 8, 0, 0 }, SINT },