Initial commit

This commit is contained in:
nmzik
2026-07-16 10:21:41 +02:00
commit 147188b143
427 changed files with 205923 additions and 0 deletions
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#include "graphics/shader/recompiler/spirvEmitter/spirvEmitterInternal.h"
namespace Libs::Graphics::ShaderRecompiler::Spirv::Emitter {
bool SdwaSelectorOffsetWidth(uint32_t sel, uint32_t& offset, uint32_t& width) {
if (sel <= 3u) {
offset = sel * 8u;
width = 8u;
return true;
}
if (sel == 4u || sel == 5u) {
offset = sel == 5u ? 16u : 0u;
width = 16u;
return true;
}
if (sel == 6u) {
offset = 0;
width = 32u;
return true;
}
return false;
}
uint32_t EmitSdwaExtractU32(EmitterState* state, const IR::Operand& operand, uint32_t value) {
if (operand.sdwa_sel == 6u && !operand.sdwa_sext) {
return value;
}
uint32_t offset = 0;
uint32_t width = 0;
if (!SdwaSelectorOffsetWidth(operand.sdwa_sel, offset, width) || width == 32u) {
return value;
}
if (operand.sdwa_sext) {
const auto signed_value = state->builder.AllocateId();
const auto extracted = state->builder.AllocateId();
const auto bits = state->builder.AllocateId();
state->builder.AddFunction({OpBitcast, state->int_type, signed_value, value});
state->builder.AddFunction({OpBitFieldSExtract, state->int_type, extracted, signed_value,
ConstantU32(state, offset), ConstantU32(state, width)});
state->builder.AddFunction({OpBitcast, state->uint_type, bits, extracted});
return bits;
}
const auto extracted = state->builder.AllocateId();
state->builder.AddFunction({OpBitFieldUExtract, state->uint_type, extracted, value,
ConstantU32(state, offset), ConstantU32(state, width)});
return extracted;
}
uint32_t EmitTrueBool(EmitterState* state) {
const auto ret = state->builder.AllocateId();
state->builder.AddFunction(
{OpINotEqual, state->bool_type, ret, ConstantU32(state, 1), ConstantU32(state, 0)});
return ret;
}
DppTargetLane EmitDppQuadPermTargetLane(EmitterState* state, uint32_t subid, uint32_t control) {
const auto quad_base = state->builder.AllocateId();
const auto lane = state->builder.AllocateId();
const auto shift = state->builder.AllocateId();
const auto selected0 = state->builder.AllocateId();
const auto selected = state->builder.AllocateId();
const auto target = state->builder.AllocateId();
state->builder.AddFunction(
{OpBitwiseAnd, state->uint_type, quad_base, subid, ConstantU32(state, 0xfffffffcu)});
state->builder.AddFunction(
{OpBitwiseAnd, state->uint_type, lane, subid, ConstantU32(state, 3)});
state->builder.AddFunction(
{OpShiftLeftLogical, state->uint_type, shift, lane, ConstantU32(state, 1)});
state->builder.AddFunction(
{OpShiftRightLogical, state->uint_type, selected0, ConstantU32(state, control), shift});
state->builder.AddFunction(
{OpBitwiseAnd, state->uint_type, selected, selected0, ConstantU32(state, 3)});
state->builder.AddFunction({OpBitwiseOr, state->uint_type, target, quad_base, selected});
return {target, EmitTrueBool(state)};
}
DppTargetLane EmitDppRowShiftTargetLane(EmitterState* state, uint32_t subid, uint32_t amount,
bool left) {
const auto row = state->builder.AllocateId();
const auto lane = state->builder.AllocateId();
const auto lane_shifted = state->builder.AllocateId();
const auto target = state->builder.AllocateId();
const auto valid = state->builder.AllocateId();
state->builder.AddFunction(
{OpBitwiseAnd, state->uint_type, row, subid, ConstantU32(state, 0xfffffff0u)});
state->builder.AddFunction(
{OpBitwiseAnd, state->uint_type, lane, subid, ConstantU32(state, 15)});
if (left) {
state->builder.AddFunction(
{OpIAdd, state->uint_type, lane_shifted, lane, ConstantU32(state, amount)});
state->builder.AddFunction(
{OpULessThan, state->bool_type, valid, lane, ConstantU32(state, 16u - amount)});
} else {
state->builder.AddFunction(
{OpISub, state->uint_type, lane_shifted, lane, ConstantU32(state, amount)});
state->builder.AddFunction(
{OpUGreaterThanEqual, state->bool_type, valid, lane, ConstantU32(state, amount)});
}
state->builder.AddFunction({OpBitwiseOr, state->uint_type, target, row, lane_shifted});
return {target, valid};
}
DppTargetLane EmitDppRowRotateRightTargetLane(EmitterState* state, uint32_t subid,
uint32_t amount) {
const auto row = state->builder.AllocateId();
const auto lane = state->builder.AllocateId();
const auto in_high = state->builder.AllocateId();
const auto minus = state->builder.AllocateId();
const auto plus = state->builder.AllocateId();
const auto selected = state->builder.AllocateId();
const auto target = state->builder.AllocateId();
state->builder.AddFunction(
{OpBitwiseAnd, state->uint_type, row, subid, ConstantU32(state, 0xfffffff0u)});
state->builder.AddFunction(
{OpBitwiseAnd, state->uint_type, lane, subid, ConstantU32(state, 15)});
state->builder.AddFunction(
{OpUGreaterThanEqual, state->bool_type, in_high, lane, ConstantU32(state, amount)});
state->builder.AddFunction({OpISub, state->uint_type, minus, lane, ConstantU32(state, amount)});
state->builder.AddFunction(
{OpIAdd, state->uint_type, plus, lane, ConstantU32(state, 16u - amount)});
state->builder.AddFunction({OpSelect, state->uint_type, selected, in_high, minus, plus});
state->builder.AddFunction({OpBitwiseOr, state->uint_type, target, row, selected});
return {target, EmitTrueBool(state)};
}
DppTargetLane EmitDppMirrorTargetLane(EmitterState* state, uint32_t subid, bool half_row) {
const auto base_mask = half_row ? 0xfffffff8u : 0xfffffff0u;
const auto lane_mask = half_row ? 7u : 15u;
const auto base = state->builder.AllocateId();
const auto lane = state->builder.AllocateId();
const auto mirrored = state->builder.AllocateId();
const auto target = state->builder.AllocateId();
state->builder.AddFunction(
{OpBitwiseAnd, state->uint_type, base, subid, ConstantU32(state, base_mask)});
state->builder.AddFunction(
{OpBitwiseAnd, state->uint_type, lane, subid, ConstantU32(state, lane_mask)});
state->builder.AddFunction(
{OpISub, state->uint_type, mirrored, ConstantU32(state, lane_mask), lane});
state->builder.AddFunction({OpBitwiseOr, state->uint_type, target, base, mirrored});
return {target, EmitTrueBool(state)};
}
DppTargetLane EmitDppTargetLane(EmitterState* state, uint32_t control) {
const auto subid = EmitSubgroupLocalInvocationId(state);
if (control <= 0xffu) {
return EmitDppQuadPermTargetLane(state, subid, control);
}
if (control >= 0x101u && control <= 0x10fu) {
return EmitDppRowShiftTargetLane(state, subid, control & 0xfu, true);
}
if (control >= 0x111u && control <= 0x11fu) {
return EmitDppRowShiftTargetLane(state, subid, control & 0xfu, false);
}
if (control >= 0x121u && control <= 0x12fu) {
return EmitDppRowRotateRightTargetLane(state, subid, control & 0xfu);
}
if (control == 0x140u) {
return EmitDppMirrorTargetLane(state, subid, false);
}
if (control == 0x141u) {
return EmitDppMirrorTargetLane(state, subid, true);
}
return {subid, EmitTrueBool(state)};
}
uint32_t EmitDppValueU32(EmitterState* state, const IR::Operand& operand, uint32_t value) {
if (!operand.dpp) {
return value;
}
const auto target = EmitDppTargetLane(state, operand.dpp_ctrl);
const auto shuffled = state->builder.AllocateId();
state->builder.AddFunction({OpGroupNonUniformShuffle, state->uint_type, shuffled,
ConstantU32(state, ScopeSubgroup), value, target.lane});
if (operand.dpp_fetch_inactive) {
return shuffled;
}
const auto source_active = EmitLaneIndexActiveBool(state, target.lane);
const auto can_fetch = state->builder.AllocateId();
const auto ret = state->builder.AllocateId();
state->builder.AddFunction(
{OpLogicalAnd, state->bool_type, can_fetch, target.valid, source_active});
state->builder.AddFunction(
{OpSelect, state->uint_type, ret, can_fetch, shuffled, ConstantU32(state, 0)});
return ret;
}
uint32_t EmitValueLoad(EmitterState* state, const IR::Operand& operand) {
uint32_t value = 0;
switch (operand.kind) {
case IR::OperandKind::ImmediateU32:
case IR::OperandKind::PcRelativeU32: value = ConstantU32(state, operand.imm); break;
case IR::OperandKind::Register: {
const auto pointer = PointerForRegister(*state, operand.reg);
if (pointer == 0) {
value = ConstantU32(state, 0);
break;
}
value = state->builder.AllocateId();
state->builder.AddFunction({OpLoad, state->uint_type, value, pointer});
break;
}
case IR::OperandKind::Null: value = ConstantU32(state, 0); break;
default: value = ConstantU32(state, 0); break;
}
value = EmitDppValueU32(state, operand, value);
return EmitSdwaExtractU32(state, operand, value);
}
uint32_t EmitRegisterLoad(EmitterState* state, IR::Register reg) {
if (IsInactiveWave32ExecHigh(*state, reg)) {
return ConstantU32(state, 0);
}
const auto pointer = PointerForRegister(*state, reg);
if (pointer == 0) {
return ConstantU32(state, 0);
}
const auto value = state->builder.AllocateId();
state->builder.AddFunction({OpLoad, state->uint_type, value, pointer});
return value;
}
uint32_t WaveMaskHighLoad(EmitterState* state, IR::RegisterFile file) {
if (state->wave_size == 32u && IsMaskRegisterFile(file)) {
return ConstantU32(state, 0);
}
return EmitRegisterLoad(state, {file, 1});
}
uint32_t EmitLaneMaskPartU32(EmitterState* state, uint32_t part) {
const auto subid = EmitSubgroupLocalInvocationId(state);
const auto lane = state->builder.AllocateId();
const auto bit = state->builder.AllocateId();
state->builder.AddFunction(
{OpBitwiseAnd, state->uint_type, lane, subid, ConstantU32(state, 31)});
state->builder.AddFunction(
{OpShiftLeftLogical, state->uint_type, bit, ConstantU32(state, 1), lane});
if (part == 0) {
const auto in_low = state->builder.AllocateId();
const auto ret = state->builder.AllocateId();
state->builder.AddFunction(
{OpULessThan, state->bool_type, in_low, subid, ConstantU32(state, 32)});
state->builder.AddFunction(
{OpSelect, state->uint_type, ret, in_low, bit, ConstantU32(state, 0)});
return ret;
}
if (state->wave_size == 32u) {
return ConstantU32(state, 0);
}
const auto in_high = state->builder.AllocateId();
const auto ret = state->builder.AllocateId();
state->builder.AddFunction(
{OpUGreaterThanEqual, state->bool_type, in_high, subid, ConstantU32(state, 32)});
state->builder.AddFunction(
{OpSelect, state->uint_type, ret, in_high, bit, ConstantU32(state, 0)});
return ret;
}
uint32_t EmitThreadMaskBelowPartU32(EmitterState* state, uint32_t part) {
const auto subid = EmitSubgroupLocalInvocationId(state);
const auto lane = state->builder.AllocateId();
const auto bit = state->builder.AllocateId();
const auto below = state->builder.AllocateId();
state->builder.AddFunction(
{OpBitwiseAnd, state->uint_type, lane, subid, ConstantU32(state, 31)});
state->builder.AddFunction(
{OpShiftLeftLogical, state->uint_type, bit, ConstantU32(state, 1), lane});
state->builder.AddFunction({OpISub, state->uint_type, below, bit, ConstantU32(state, 1)});
if (part == 0) {
const auto in_high = state->builder.AllocateId();
const auto ret = state->builder.AllocateId();
state->builder.AddFunction(
{OpUGreaterThanEqual, state->bool_type, in_high, subid, ConstantU32(state, 32)});
state->builder.AddFunction(
{OpSelect, state->uint_type, ret, in_high, ConstantU32(state, 0xffffffffu), below});
return ret;
}
if (state->wave_size == 32u) {
return ConstantU32(state, 0);
}
const auto in_high = state->builder.AllocateId();
const auto ret = state->builder.AllocateId();
state->builder.AddFunction(
{OpUGreaterThanEqual, state->bool_type, in_high, subid, ConstantU32(state, 32)});
state->builder.AddFunction(
{OpSelect, state->uint_type, ret, in_high, below, ConstantU32(state, 0)});
return ret;
}
uint32_t EmitMaskActiveBool(EmitterState* state, IR::RegisterFile file) {
const auto low = EmitRegisterLoad(state, {file, 0});
const auto condition = state->builder.AllocateId();
if (state->per_invocation_masks) {
const auto combined = state->builder.AllocateId();
state->builder.AddFunction(
{OpBitwiseOr, state->uint_type, combined, low, WaveMaskHighLoad(state, file)});
state->builder.AddFunction(
{OpINotEqual, state->bool_type, condition, combined, ConstantU32(state, 0)});
return condition;
}
if (state->exact_subgroup_operations) {
const auto high = WaveMaskHighLoad(state, file);
const auto low_hit = state->builder.AllocateId();
const auto high_hit = state->builder.AllocateId();
const auto active = state->builder.AllocateId();
state->builder.AddFunction(
{OpBitwiseAnd, state->uint_type, low_hit, low, EmitLaneMaskPartU32(state, 0)});
state->builder.AddFunction(
{OpBitwiseAnd, state->uint_type, high_hit, high, EmitLaneMaskPartU32(state, 1)});
state->builder.AddFunction({OpBitwiseOr, state->uint_type, active, low_hit, high_hit});
state->builder.AddFunction(
{OpINotEqual, state->bool_type, condition, active, ConstantU32(state, 0)});
return condition;
}
state->builder.AddFunction(
{OpINotEqual, state->bool_type, condition, low, ConstantU32(state, 0)});
return condition;
}
uint32_t EmitMaskZeroBool(EmitterState* state, IR::RegisterFile file, bool zero) {
const auto active = EmitMaskActiveBool(state, file);
if (!zero) {
return active;
}
const auto cond = state->builder.AllocateId();
state->builder.AddFunction({OpLogicalNot, state->bool_type, cond, active});
return cond;
}
uint32_t EmitMaskSummaryZeroBool(EmitterState* state, IR::RegisterFile file, bool zero) {
if (state->per_invocation_masks) {
return EmitMaskZeroBool(state, file, zero);
}
if (state->exact_subgroup_operations) {
const auto low = EmitRegisterLoad(state, {file, 0});
const auto high = WaveMaskHighLoad(state, file);
const auto combined = state->builder.AllocateId();
const auto active = state->builder.AllocateId();
state->builder.AddFunction({OpBitwiseOr, state->uint_type, combined, low, high});
state->builder.AddFunction(
{OpINotEqual, state->bool_type, active, combined, ConstantU32(state, 0)});
if (!zero) {
return active;
}
const auto inactive = state->builder.AllocateId();
state->builder.AddFunction({OpLogicalNot, state->bool_type, inactive, active});
return inactive;
}
const auto active = EmitMaskActiveBool(state, file);
if (!zero) {
return active;
}
const auto inactive = state->builder.AllocateId();
state->builder.AddFunction({OpLogicalNot, state->bool_type, inactive, active});
return inactive;
}
uint32_t EmitExecActiveBool(EmitterState* state) {
return EmitMaskZeroBool(state, IR::RegisterFile::Exec, false);
}
uint32_t EmitConditionBool(EmitterState* state, const IR::Operand& operand) {
if (operand.kind == IR::OperandKind::Register) {
if (operand.reg.file == IR::RegisterFile::Exec ||
operand.reg.file == IR::RegisterFile::Vcc) {
return EmitMaskActiveBool(state, operand.reg.file);
}
}
const auto cond_value = EmitValueLoad(state, operand);
const auto cond = state->builder.AllocateId();
state->builder.AddFunction(
{OpINotEqual, state->bool_type, cond, cond_value, ConstantU32(state, 0)});
return cond;
}
uint32_t EmitSubgroupLocalInvocationId(EmitterState* state) {
if (state->subgroup_local_invocation_id_variable == 0) {
return ConstantU32(state, 0);
}
const auto value = state->builder.AllocateId();
state->builder.AddFunction(
{OpLoad, state->uint_type, value, state->subgroup_local_invocation_id_variable});
return value;
}
uint32_t InputVariableForKind(const EmitterState& state, IR::StageInputKind kind) {
for (const auto& input: state.inputs) {
if (input.kind == kind) {
return input.variable_id;
}
}
return 0;
}
uint32_t InputVariableForParameter(const EmitterState& state, uint32_t location) {
for (const auto& input: state.inputs) {
if (input.kind == IR::StageInputKind::Parameter && input.location == location) {
return input.variable_id;
}
}
return 0;
}
const InputBinding* InputBindingForParameter(const EmitterState& state, uint32_t location) {
for (const auto& input: state.inputs) {
if (input.kind == IR::StageInputKind::Parameter && input.location == location) {
return &input;
}
}
return nullptr;
}
uint32_t EmitInputComponentU32(EmitterState* state, IR::StageInputKind kind, uint32_t component) {
const auto variable = InputVariableForKind(*state, kind);
if (variable == 0) {
return ConstantU32(state, 0);
}
const auto pointer = state->builder.AllocateId();
const auto value = state->builder.AllocateId();
state->builder.AddFunction(
{OpAccessChain, state->ptr_input_uint, pointer, variable, ConstantU32(state, component)});
state->builder.AddFunction({OpLoad, state->uint_type, value, pointer});
return value;
}
uint32_t EmitLocalInvocationIndex(EmitterState* state) {
const auto variable = InputVariableForKind(*state, IR::StageInputKind::LocalInvocationIndex);
if (variable == 0) {
return ConstantU32(state, 0);
}
const auto value = state->builder.AllocateId();
state->builder.AddFunction({OpLoad, state->uint_type, value, variable});
return value;
}
uint32_t VertexInputDefaultComponentU32(EmitterState* state, VertexInputScalarKind kind,
uint32_t component) {
if ((component & 3u) != 3u) {
return ConstantU32(state, 0);
}
return ConstantU32(state, kind == VertexInputScalarKind::Float ? 0x3f800000u : 1u);
}
uint32_t EmitVertexParameterComponentU32(EmitterState* state, const InputBinding& input,
uint32_t component) {
const auto count = VertexParameterComponentCount(*state, input);
const auto kind = VertexParameterScalarKind(*state, input.location);
if (component >= count) {
return VertexInputDefaultComponentU32(state, kind, component);
}
const auto scalar_type = VertexParameterScalarType(*state, kind);
uint32_t raw = state->builder.AllocateId();
if (count == 1u) {
state->builder.AddFunction({OpLoad, scalar_type, raw, input.variable_id});
} else {
const auto pointer_type = VertexParameterScalarPointerType(*state, kind);
const auto pointer = state->builder.AllocateId();
state->builder.AddFunction({OpAccessChain, pointer_type, pointer, input.variable_id,
ConstantU32(state, component)});
state->builder.AddFunction({OpLoad, scalar_type, raw, pointer});
}
if (kind == VertexInputScalarKind::Uint) {
return raw;
}
const auto bits = state->builder.AllocateId();
state->builder.AddFunction({OpBitcast, state->uint_type, bits, raw});
return bits;
}
void EmitLoadInputF32(EmitterState* state, const IR::Instruction& inst) {
const auto* input = InputBindingForParameter(*state, inst.input_info.attr);
if (input == nullptr || input->variable_id == 0) {
EmitStoreU32(state, inst.dst, ConstantU32(state, 0));
return;
}
if (state->stage == ShaderType::Vertex) {
EmitStoreU32(state, inst.dst,
EmitVertexParameterComponentU32(state, *input, inst.input_info.chan & 3u));
return;
}
const auto input_value = state->builder.AllocateId();
const auto component = state->builder.AllocateId();
const auto bits = state->builder.AllocateId();
state->builder.AddFunction({OpLoad, state->vec4_float_type, input_value, input->variable_id});
state->builder.AddFunction(
{OpCompositeExtract, state->float_type, component, input_value, inst.input_info.chan & 3u});
state->builder.AddFunction({OpBitcast, state->uint_type, bits, component});
EmitStoreU32(state, inst.dst, bits);
}
uint32_t EmitSccBool(EmitterState* state, bool non_zero) {
const auto value = EmitRegisterLoad(state, SccRegister());
const auto cond = state->builder.AllocateId();
state->builder.AddFunction(
{non_zero ? OpINotEqual : OpIEqual, state->bool_type, cond, value, ConstantU32(state, 0)});
return cond;
}
uint32_t EmitFloatLoad(EmitterState* state, const IR::Operand& operand) {
const auto uint_value = EmitValueLoad(state, operand);
auto float_value = state->builder.AllocateId();
state->builder.AddFunction({OpBitcast, state->float_type, float_value, uint_value});
if (operand.absolute) {
const auto abs_value = state->builder.AllocateId();
state->builder.AddFunction(
{OpExtInst, state->float_type, abs_value, state->glsl_std450, GlslFAbs, float_value});
float_value = abs_value;
}
if (operand.negate) {
const auto neg_value = state->builder.AllocateId();
state->builder.AddFunction({OpFNegate, state->float_type, neg_value, float_value});
float_value = neg_value;
}
return float_value;
}
uint32_t ApplyResultModifiersF32(EmitterState* state, uint32_t value, const IR::Operand& dst) {
uint32_t result = value;
if (dst.omod != 0) {
const uint32_t bits = dst.omod == 1u ? 0x40000000u
: dst.omod == 2u ? 0x40800000u
: 0x3f000000u;
const auto scaled = state->builder.AllocateId();
state->builder.AddFunction(
{OpFMul, state->float_type, scaled, result, ConstantF32(state, bits)});
result = scaled;
}
if (!dst.clamp) {
return result;
}
const auto ret = state->builder.AllocateId();
state->builder.AddFunction({OpExtInst, state->float_type, ret, state->glsl_std450, GlslFClamp,
result, ConstantF32(state, 0), ConstantF32(state, 0x3f800000u)});
return ret;
}
uint32_t EmitMixF32Load(EmitterState* state, const IR::Operand& operand) {
auto value_operand = operand;
value_operand.negate_hi = false;
if (operand.op_sel_hi) {
auto raw = operand;
raw.sdwa_sel = 6;
raw.sdwa_sext = false;
raw.op_sel = false;
raw.op_sel_hi = false;
raw.negate = false;
raw.negate_hi = false;
raw.absolute = false;
raw.dpp = false;
raw.dpp_fetch_inactive = false;
raw.dpp_bound_ctrl = false;
const auto bits = EmitValueLoad(state, raw);
const auto unpacked = state->builder.AllocateId();
auto f32 = state->builder.AllocateId();
state->builder.AddFunction({OpExtInst, state->vec2_float_type, unpacked, state->glsl_std450,
GlslUnpackHalf2x16, bits});
state->builder.AddFunction(
{OpCompositeExtract, state->float_type, f32, unpacked, operand.op_sel ? 1u : 0u});
if (operand.absolute) {
const auto abs_value = state->builder.AllocateId();
state->builder.AddFunction(
{OpExtInst, state->float_type, abs_value, state->glsl_std450, GlslFAbs, f32});
f32 = abs_value;
}
if (value_operand.negate) {
const auto neg_value = state->builder.AllocateId();
state->builder.AddFunction({OpFNegate, state->float_type, neg_value, f32});
f32 = neg_value;
}
return f32;
}
value_operand.op_sel = false;
value_operand.op_sel_hi = false;
return EmitFloatLoad(state, value_operand);
}
IR::Operand OffsetRegisterOperand(const IR::Operand& operand, uint32_t offset) {
if (offset == 0 || operand.kind != IR::OperandKind::Register) {
return operand;
}
auto ret = operand;
ret.reg.index += offset;
ret.sdwa_sel = 6;
ret.omod = 0;
ret.sdwa_sext = false;
ret.op_sel = false;
ret.op_sel_hi = false;
ret.negate = false;
ret.negate_hi = false;
ret.absolute = false;
ret.clamp = false;
ret.dpp_ctrl = 0;
ret.dpp_row_mask = 0xf;
ret.dpp_bank_mask = 0xf;
ret.dpp_fetch_inactive = false;
ret.dpp_bound_ctrl = false;
ret.dpp = false;
return ret;
}
uint32_t EmitLaneMaskOperandActiveBool(EmitterState* state, const IR::Operand& operand) {
const auto low = EmitValueLoad(state, operand);
const auto active = state->builder.AllocateId();
if (state->per_invocation_masks || state->exact_subgroup_operations) {
uint32_t high = ConstantU32(state, 0);
if (operand.kind == IR::OperandKind::Register &&
(operand.reg.file == IR::RegisterFile::Scalar ||
operand.reg.file == IR::RegisterFile::Vcc ||
operand.reg.file == IR::RegisterFile::Exec)) {
high = IsMaskRegisterFile(operand.reg.file)
? WaveMaskHighLoad(state, operand.reg.file)
: EmitValueLoad(state, OffsetRegisterOperand(operand, 1));
}
if (state->per_invocation_masks) {
const auto combined = state->builder.AllocateId();
state->builder.AddFunction({OpBitwiseOr, state->uint_type, combined, low, high});
state->builder.AddFunction(
{OpINotEqual, state->bool_type, active, combined, ConstantU32(state, 0)});
return active;
}
const auto low_hit = state->builder.AllocateId();
const auto high_hit = state->builder.AllocateId();
const auto hit = state->builder.AllocateId();
state->builder.AddFunction(
{OpBitwiseAnd, state->uint_type, low_hit, low, EmitLaneMaskPartU32(state, 0)});
state->builder.AddFunction(
{OpBitwiseAnd, state->uint_type, high_hit, high, EmitLaneMaskPartU32(state, 1)});
state->builder.AddFunction({OpBitwiseOr, state->uint_type, hit, low_hit, high_hit});
state->builder.AddFunction(
{OpINotEqual, state->bool_type, active, hit, ConstantU32(state, 0)});
return active;
}
state->builder.AddFunction({OpINotEqual, state->bool_type, active, low, ConstantU32(state, 0)});
return active;
}
uint32_t EmitLaneIndexActiveBool(EmitterState* state, uint32_t lane) {
if (state->per_invocation_masks) {
const auto ballot = state->builder.AllocateId();
state->builder.AddFunction({OpGroupNonUniformBallot, state->vec4_uint_type, ballot,
ConstantU32(state, ScopeSubgroup), EmitExecActiveBool(state)});
return EmitBallotLaneActiveBool(state, ballot, lane);
}
const auto lane_low = state->builder.AllocateId();
const auto bit = state->builder.AllocateId();
state->builder.AddFunction(
{OpBitwiseAnd, state->uint_type, lane_low, lane, ConstantU32(state, 31)});
state->builder.AddFunction(
{OpShiftLeftLogical, state->uint_type, bit, ConstantU32(state, 1), lane_low});
uint32_t mask = EmitRegisterLoad(state, {IR::RegisterFile::Exec, 0});
if (state->wave_size == 64u) {
const auto high = EmitRegisterLoad(state, {IR::RegisterFile::Exec, 1});
const auto in_high = state->builder.AllocateId();
const auto selected = state->builder.AllocateId();
state->builder.AddFunction(
{OpUGreaterThanEqual, state->bool_type, in_high, lane, ConstantU32(state, 32)});
state->builder.AddFunction({OpSelect, state->uint_type, selected, in_high, high, mask});
mask = selected;
}
const auto hit = state->builder.AllocateId();
const auto ret = state->builder.AllocateId();
state->builder.AddFunction({OpBitwiseAnd, state->uint_type, hit, mask, bit});
state->builder.AddFunction({OpINotEqual, state->bool_type, ret, hit, ConstantU32(state, 0)});
return ret;
}
uint32_t EmitSubgroupLaneActiveBool(EmitterState* state, uint32_t lane) {
const auto active_ballot = state->builder.AllocateId();
state->builder.AddFunction({OpGroupNonUniformBallot, state->vec4_uint_type, active_ballot,
ConstantU32(state, ScopeSubgroup), EmitTrueBool(state)});
return EmitBallotLaneActiveBool(state, active_ballot, lane);
}
uint32_t EmitBallotLaneActiveBool(EmitterState* state, uint32_t active_ballot, uint32_t lane) {
const auto low = state->builder.AllocateId();
state->builder.AddFunction({OpCompositeExtract, state->uint_type, low, active_ballot, 0});
uint32_t mask = low;
if (state->wave_size == 64u) {
const auto high = state->builder.AllocateId();
const auto in_high = state->builder.AllocateId();
const auto selected = state->builder.AllocateId();
state->builder.AddFunction({OpCompositeExtract, state->uint_type, high, active_ballot, 1});
state->builder.AddFunction(
{OpUGreaterThanEqual, state->bool_type, in_high, lane, ConstantU32(state, 32)});
state->builder.AddFunction({OpSelect, state->uint_type, selected, in_high, high, low});
mask = selected;
}
const auto lane_low = state->builder.AllocateId();
const auto bit = state->builder.AllocateId();
state->builder.AddFunction(
{OpBitwiseAnd, state->uint_type, lane_low, lane, ConstantU32(state, 31)});
state->builder.AddFunction(
{OpShiftLeftLogical, state->uint_type, bit, ConstantU32(state, 1), lane_low});
const auto hit = state->builder.AllocateId();
const auto active = state->builder.AllocateId();
const auto in_range = state->builder.AllocateId();
const auto ret = state->builder.AllocateId();
state->builder.AddFunction({OpBitwiseAnd, state->uint_type, hit, mask, bit});
state->builder.AddFunction({OpINotEqual, state->bool_type, active, hit, ConstantU32(state, 0)});
state->builder.AddFunction(
{OpULessThan, state->bool_type, in_range, lane, ConstantU32(state, state->wave_size)});
state->builder.AddFunction({OpLogicalAnd, state->bool_type, ret, active, in_range});
return ret;
}
uint32_t EmitSequentialValueLoad(EmitterState* state, const IR::Operand& operand, uint32_t offset) {
if (offset == 0 || operand.kind == IR::OperandKind::Register) {
return EmitValueLoad(state, OffsetRegisterOperand(operand, offset));
}
if (operand.kind == IR::OperandKind::ImmediateU32 && offset == 1) {
return ConstantU32(state, operand.sext_64 ? 0xffffffffu : 0u);
}
return ConstantU32(state, 0);
}
uint32_t EmitSequentialFloatLoad(EmitterState* state, const IR::Operand& operand, uint32_t offset) {
const auto value = EmitSequentialValueLoad(state, operand, offset);
const auto f32 = state->builder.AllocateId();
state->builder.AddFunction({OpBitcast, state->float_type, f32, value});
return f32;
}
bool ImageAddressUsesA16(const IR::Instruction& inst) {
return (inst.memory.image_sample_flags & Decoder::ImageSampleFlagA16) != 0u;
}
bool ImageAddressComponentUsesA16(const IR::Instruction& inst, uint32_t component) {
if (!ImageAddressUsesA16(inst)) {
return false;
}
uint32_t cursor = 0;
if ((inst.memory.image_sample_flags & Decoder::ImageSampleFlagOffset) != 0u) {
if (component == cursor) {
return false;
}
cursor++;
}
if ((inst.memory.image_sample_flags & Decoder::ImageSampleFlagBias) != 0u) {
if (component == cursor) {
return true;
}
cursor++;
}
if ((inst.memory.image_sample_flags & Decoder::ImageSampleFlagCompare) != 0u &&
component == cursor) {
return false;
}
return true;
}
uint32_t ImageAddressHalfComponent(const IR::Instruction& inst, uint32_t component) {
if (!ImageAddressUsesA16(inst)) {
return component * 2u;
}
uint32_t half_component = 0;
for (uint32_t i = 0; i < component; i++) {
const auto half_width = ImageAddressComponentUsesA16(inst, i) ? 1u : 2u;
if (half_width == 2u && (half_component & 1u) != 0u) {
half_component++;
}
half_component += half_width;
}
if (!ImageAddressComponentUsesA16(inst, component) && (half_component & 1u) != 0u) {
half_component++;
}
return half_component;
}
uint32_t ImageAddressPackedComponent(const IR::Instruction& inst, uint32_t component) {
return ImageAddressHalfComponent(inst, component) / 2u;
}
IR::Operand ImageAddressOperand(const IR::Instruction& inst, const IR::Operand& base,
uint32_t component) {
const auto packed_component = ImageAddressPackedComponent(inst, component);
if (packed_component > 0 && inst.memory.image_nsa_dwords != 0) {
const auto nsa_index = packed_component - 1u;
const auto nsa_count = std::min<uint32_t>(inst.memory.image_nsa_dwords * 4u,
Decoder::MaxImageNsaAddressComponents);
if (nsa_index < nsa_count) {
return MakeRegisterOperand(IR::RegisterFile::Vector,
inst.memory.image_nsa_addr[nsa_index]);
}
}
return OffsetRegisterOperand(base, packed_component);
}
uint32_t EmitImageAddressValueLoad(EmitterState* state, const IR::Instruction& inst,
const IR::Operand& base, uint32_t component) {
const auto operand = ImageAddressOperand(inst, base, component);
const auto packed_component = ImageAddressPackedComponent(inst, component);
if (packed_component == 0 || operand.kind == IR::OperandKind::Register) {
auto value = EmitValueLoad(state, operand);
if (ImageAddressComponentUsesA16(inst, component)) {
if ((ImageAddressHalfComponent(inst, component) & 1u) != 0u) {
value = EmitShiftRightConstant(state, value, 16u);
}
value = EmitAndConstant(state, value, 0xffffu);
}
return value;
}
return ConstantU32(state, 0);
}
uint32_t EmitImageAddressFloatLoad(EmitterState* state, const IR::Instruction& inst,
const IR::Operand& base, uint32_t component) {
const auto value = EmitImageAddressValueLoad(state, inst, base, component);
if (ImageAddressComponentUsesA16(inst, component)) {
return EmitF16BitsToF32(state, value);
}
const auto f32 = state->builder.AllocateId();
state->builder.AddFunction({OpBitcast, state->float_type, f32, value});
return f32;
}
uint32_t EmitZeroF32(EmitterState* state) {
const auto f32 = state->builder.AllocateId();
state->builder.AddFunction({OpBitcast, state->float_type, f32, ConstantU32(state, 0)});
return f32;
}
} // namespace Libs::Graphics::ShaderRecompiler::Spirv::Emitter