SPIRV-Tools/source/opt/common_uniform_elim_pass.cpp

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// Copyright (c) 2017 The Khronos Group Inc.
// Copyright (c) 2017 Valve Corporation
// Copyright (c) 2017 LunarG Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "common_uniform_elim_pass.h"
#include "cfa.h"
#include "ir_context.h"
namespace spvtools {
namespace opt {
namespace {
const uint32_t kAccessChainPtrIdInIdx = 0;
const uint32_t kTypePointerStorageClassInIdx = 0;
const uint32_t kTypePointerTypeIdInIdx = 1;
const uint32_t kConstantValueInIdx = 0;
const uint32_t kExtractCompositeIdInIdx = 0;
const uint32_t kExtractIdx0InIdx = 1;
const uint32_t kStorePtrIdInIdx = 0;
const uint32_t kLoadPtrIdInIdx = 0;
const uint32_t kCopyObjectOperandInIdx = 0;
const uint32_t kTypeIntWidthInIdx = 0;
} // anonymous namespace
bool CommonUniformElimPass::IsNonPtrAccessChain(const SpvOp opcode) const {
return opcode == SpvOpAccessChain || opcode == SpvOpInBoundsAccessChain;
}
bool CommonUniformElimPass::IsSamplerOrImageType(
const Instruction* typeInst) const {
switch (typeInst->opcode()) {
case SpvOpTypeSampler:
case SpvOpTypeImage:
case SpvOpTypeSampledImage:
return true;
default:
break;
}
if (typeInst->opcode() != SpvOpTypeStruct) return false;
// Return true if any member is a sampler or image
return !typeInst->WhileEachInId([this](const uint32_t* tid) {
const Instruction* compTypeInst = get_def_use_mgr()->GetDef(*tid);
if (IsSamplerOrImageType(compTypeInst)) {
return false;
}
return true;
});
}
bool CommonUniformElimPass::IsSamplerOrImageVar(uint32_t varId) const {
const Instruction* varInst = get_def_use_mgr()->GetDef(varId);
assert(varInst->opcode() == SpvOpVariable);
const uint32_t varTypeId = varInst->type_id();
const Instruction* varTypeInst = get_def_use_mgr()->GetDef(varTypeId);
const uint32_t varPteTypeId =
varTypeInst->GetSingleWordInOperand(kTypePointerTypeIdInIdx);
Instruction* varPteTypeInst = get_def_use_mgr()->GetDef(varPteTypeId);
return IsSamplerOrImageType(varPteTypeInst);
}
Instruction* CommonUniformElimPass::GetPtr(Instruction* ip, uint32_t* objId) {
const SpvOp op = ip->opcode();
assert(op == SpvOpStore || op == SpvOpLoad);
*objId = ip->GetSingleWordInOperand(op == SpvOpStore ? kStorePtrIdInIdx
: kLoadPtrIdInIdx);
Instruction* ptrInst = get_def_use_mgr()->GetDef(*objId);
while (ptrInst->opcode() == SpvOpCopyObject) {
*objId = ptrInst->GetSingleWordInOperand(kCopyObjectOperandInIdx);
ptrInst = get_def_use_mgr()->GetDef(*objId);
}
Instruction* objInst = ptrInst;
while (objInst->opcode() != SpvOpVariable &&
objInst->opcode() != SpvOpFunctionParameter) {
if (IsNonPtrAccessChain(objInst->opcode())) {
*objId = objInst->GetSingleWordInOperand(kAccessChainPtrIdInIdx);
} else {
assert(objInst->opcode() == SpvOpCopyObject);
*objId = objInst->GetSingleWordInOperand(kCopyObjectOperandInIdx);
}
objInst = get_def_use_mgr()->GetDef(*objId);
}
return ptrInst;
}
bool CommonUniformElimPass::IsVolatileStruct(uint32_t type_id) {
assert(get_def_use_mgr()->GetDef(type_id)->opcode() == SpvOpTypeStruct);
return !get_decoration_mgr()->WhileEachDecoration(
type_id, SpvDecorationVolatile, [](const Instruction&) { return false; });
}
bool CommonUniformElimPass::IsAccessChainToVolatileStructType(
const Instruction& AccessChainInst) {
assert(AccessChainInst.opcode() == SpvOpAccessChain);
uint32_t ptr_id = AccessChainInst.GetSingleWordInOperand(0);
const Instruction* ptr_inst = get_def_use_mgr()->GetDef(ptr_id);
uint32_t pointee_type_id = GetPointeeTypeId(ptr_inst);
const uint32_t num_operands = AccessChainInst.NumOperands();
// walk the type tree:
for (uint32_t idx = 3; idx < num_operands; ++idx) {
Instruction* pointee_type = get_def_use_mgr()->GetDef(pointee_type_id);
switch (pointee_type->opcode()) {
case SpvOpTypeMatrix:
case SpvOpTypeVector:
case SpvOpTypeArray:
case SpvOpTypeRuntimeArray:
pointee_type_id = pointee_type->GetSingleWordOperand(1);
break;
case SpvOpTypeStruct:
// check for volatile decorations:
if (IsVolatileStruct(pointee_type_id)) return true;
if (idx < num_operands - 1) {
const uint32_t index_id = AccessChainInst.GetSingleWordOperand(idx);
const Instruction* index_inst = get_def_use_mgr()->GetDef(index_id);
uint32_t index_value = index_inst->GetSingleWordOperand(
2); // TODO: replace with GetUintValueFromConstant()
pointee_type_id = pointee_type->GetSingleWordInOperand(index_value);
}
break;
default:
assert(false && "Unhandled pointee type.");
}
}
return false;
}
bool CommonUniformElimPass::IsVolatileLoad(const Instruction& loadInst) {
assert(loadInst.opcode() == SpvOpLoad);
// Check if this Load instruction has Volatile Memory Access flag
if (loadInst.NumOperands() == 4) {
uint32_t memory_access_mask = loadInst.GetSingleWordOperand(3);
if (memory_access_mask & SpvMemoryAccessVolatileMask) return true;
}
// If we load a struct directly (result type is struct),
// check if the struct is decorated volatile
uint32_t type_id = loadInst.type_id();
if (get_def_use_mgr()->GetDef(type_id)->opcode() == SpvOpTypeStruct)
return IsVolatileStruct(type_id);
else
return false;
}
bool CommonUniformElimPass::IsUniformVar(uint32_t varId) {
const Instruction* varInst =
get_def_use_mgr()->id_to_defs().find(varId)->second;
if (varInst->opcode() != SpvOpVariable) return false;
const uint32_t varTypeId = varInst->type_id();
const Instruction* varTypeInst =
get_def_use_mgr()->id_to_defs().find(varTypeId)->second;
return varTypeInst->GetSingleWordInOperand(kTypePointerStorageClassInIdx) ==
SpvStorageClassUniform ||
varTypeInst->GetSingleWordInOperand(kTypePointerStorageClassInIdx) ==
SpvStorageClassUniformConstant;
}
bool CommonUniformElimPass::HasUnsupportedDecorates(uint32_t id) const {
return !get_def_use_mgr()->WhileEachUser(id, [this](Instruction* user) {
if (IsNonTypeDecorate(user->opcode())) return false;
return true;
});
}
bool CommonUniformElimPass::HasOnlyNamesAndDecorates(uint32_t id) const {
return get_def_use_mgr()->WhileEachUser(id, [this](Instruction* user) {
SpvOp op = user->opcode();
if (op != SpvOpName && !IsNonTypeDecorate(op)) return false;
return true;
});
}
void CommonUniformElimPass::DeleteIfUseless(Instruction* inst) {
const uint32_t resId = inst->result_id();
assert(resId != 0);
if (HasOnlyNamesAndDecorates(resId)) {
context()->KillInst(inst);
}
}
Instruction* CommonUniformElimPass::ReplaceAndDeleteLoad(Instruction* loadInst,
uint32_t replId,
Instruction* ptrInst) {
const uint32_t loadId = loadInst->result_id();
context()->KillNamesAndDecorates(loadId);
(void)context()->ReplaceAllUsesWith(loadId, replId);
// remove load instruction
Instruction* next_instruction = context()->KillInst(loadInst);
// if access chain, see if it can be removed as well
if (IsNonPtrAccessChain(ptrInst->opcode())) DeleteIfUseless(ptrInst);
return next_instruction;
}
void CommonUniformElimPass::GenACLoadRepl(
const Instruction* ptrInst,
std::vector<std::unique_ptr<Instruction>>* newInsts, uint32_t* resultId) {
// Build and append Load
const uint32_t ldResultId = TakeNextId();
const uint32_t varId =
ptrInst->GetSingleWordInOperand(kAccessChainPtrIdInIdx);
const Instruction* varInst = get_def_use_mgr()->GetDef(varId);
assert(varInst->opcode() == SpvOpVariable);
const uint32_t varPteTypeId = GetPointeeTypeId(varInst);
std::vector<Operand> load_in_operands;
load_in_operands.push_back(Operand(spv_operand_type_t::SPV_OPERAND_TYPE_ID,
std::initializer_list<uint32_t>{varId}));
std::unique_ptr<Instruction> newLoad(new Instruction(
Adding an unique id to Instruction generated by IRContext Each instruction is given an unique id that can be used for ordering purposes. The ids are generated via the IRContext. Major changes: * Instructions now contain a uint32_t for unique id and a cached context pointer * Most constructors have been modified to take a context as input * unfortunately I cannot remove the default and copy constructors, but developers should avoid these * Added accessors to parents of basic block and function * Removed the copy constructors for BasicBlock and Function and replaced them with Clone functions * Reworked BuildModule to return an IRContext owning the built module * Since all instructions require a context, the context now becomes the basic unit for IR * Added a constructor to context to create an owned module internally * Replaced uses of Instruction's copy constructor with Clone whereever I found them * Reworked the linker functionality to perform clones into a different context instead of moves * Updated many tests to be consistent with the above changes * Still need to add new tests to cover added functionality * Added comparison operators to Instruction * Added an internal option to LinkerOptions to verify merged ids are unique * Added a test for the linker to verify merged ids are unique * Updated MergeReturnPass to supply a context * Updated DecorationManager to supply a context for cloned decorations * Reworked several portions of the def use tests in anticipation of next set of changes
2017-11-14 19:11:50 +00:00
context(), SpvOpLoad, varPteTypeId, ldResultId, load_in_operands));
get_def_use_mgr()->AnalyzeInstDefUse(&*newLoad);
newInsts->emplace_back(std::move(newLoad));
// Build and append Extract
const uint32_t extResultId = TakeNextId();
const uint32_t ptrPteTypeId = GetPointeeTypeId(ptrInst);
std::vector<Operand> ext_in_opnds;
ext_in_opnds.push_back(Operand(spv_operand_type_t::SPV_OPERAND_TYPE_ID,
std::initializer_list<uint32_t>{ldResultId}));
uint32_t iidIdx = 0;
ptrInst->ForEachInId([&iidIdx, &ext_in_opnds, this](const uint32_t* iid) {
if (iidIdx > 0) {
const Instruction* cInst = get_def_use_mgr()->GetDef(*iid);
uint32_t val = cInst->GetSingleWordInOperand(kConstantValueInIdx);
ext_in_opnds.push_back(
Operand(spv_operand_type_t::SPV_OPERAND_TYPE_LITERAL_INTEGER,
std::initializer_list<uint32_t>{val}));
}
++iidIdx;
});
std::unique_ptr<Instruction> newExt(
new Instruction(context(), SpvOpCompositeExtract, ptrPteTypeId,
extResultId, ext_in_opnds));
get_def_use_mgr()->AnalyzeInstDefUse(&*newExt);
newInsts->emplace_back(std::move(newExt));
*resultId = extResultId;
}
bool CommonUniformElimPass::IsConstantIndexAccessChain(Instruction* acp) {
uint32_t inIdx = 0;
return acp->WhileEachInId([&inIdx, this](uint32_t* tid) {
if (inIdx > 0) {
Instruction* opInst = get_def_use_mgr()->GetDef(*tid);
if (opInst->opcode() != SpvOpConstant) return false;
}
++inIdx;
return true;
});
}
bool CommonUniformElimPass::UniformAccessChainConvert(Function* func) {
bool modified = false;
for (auto bi = func->begin(); bi != func->end(); ++bi) {
for (Instruction* inst = &*bi->begin(); inst; inst = inst->NextNode()) {
if (inst->opcode() != SpvOpLoad) continue;
uint32_t varId;
Instruction* ptrInst = GetPtr(inst, &varId);
if (!IsNonPtrAccessChain(ptrInst->opcode())) continue;
// Do not convert nested access chains
if (ptrInst->GetSingleWordInOperand(kAccessChainPtrIdInIdx) != varId)
continue;
if (!IsUniformVar(varId)) continue;
if (!IsConstantIndexAccessChain(ptrInst)) continue;
if (HasUnsupportedDecorates(inst->result_id())) continue;
if (HasUnsupportedDecorates(ptrInst->result_id())) continue;
if (IsVolatileLoad(*inst)) continue;
if (IsAccessChainToVolatileStructType(*ptrInst)) continue;
std::vector<std::unique_ptr<Instruction>> newInsts;
uint32_t replId;
GenACLoadRepl(ptrInst, &newInsts, &replId);
inst = ReplaceAndDeleteLoad(inst, replId, ptrInst);
inst = inst->InsertBefore(std::move(newInsts));
modified = true;
};
}
return modified;
}
void CommonUniformElimPass::ComputeStructuredSuccessors(Function* func) {
block2structured_succs_.clear();
for (auto& blk : *func) {
// If header, make merge block first successor.
uint32_t mbid = blk.MergeBlockIdIfAny();
if (mbid != 0) {
block2structured_succs_[&blk].push_back(cfg()->block(mbid));
uint32_t cbid = blk.ContinueBlockIdIfAny();
if (cbid != 0) {
block2structured_succs_[&blk].push_back(cfg()->block(mbid));
}
}
// add true successors
const auto& const_blk = blk;
const_blk.ForEachSuccessorLabel([&blk, this](const uint32_t sbid) {
block2structured_succs_[&blk].push_back(cfg()->block(sbid));
});
}
}
void CommonUniformElimPass::ComputeStructuredOrder(
Function* func, std::list<BasicBlock*>* order) {
// Compute structured successors and do DFS
ComputeStructuredSuccessors(func);
auto ignore_block = [](cbb_ptr) {};
auto ignore_edge = [](cbb_ptr, cbb_ptr) {};
auto get_structured_successors = [this](const BasicBlock* block) {
return &(block2structured_succs_[block]);
};
// TODO(greg-lunarg): Get rid of const_cast by making moving const
// out of the cfa.h prototypes and into the invoking code.
auto post_order = [&](cbb_ptr b) {
order->push_front(const_cast<BasicBlock*>(b));
};
order->clear();
CFA<BasicBlock>::DepthFirstTraversal(&*func->begin(),
get_structured_successors, ignore_block,
post_order, ignore_edge);
}
bool CommonUniformElimPass::CommonUniformLoadElimination(Function* func) {
// Process all blocks in structured order. This is just one way (the
// simplest?) to keep track of the most recent block outside of control
// flow, used to copy common instructions, guaranteed to dominate all
// following load sites.
std::list<BasicBlock*> structuredOrder;
ComputeStructuredOrder(func, &structuredOrder);
uniform2load_id_.clear();
bool modified = false;
// Find insertion point in first block to copy non-dominating loads.
auto insertItr = func->begin()->begin();
while (insertItr->opcode() == SpvOpVariable ||
insertItr->opcode() == SpvOpNop)
++insertItr;
// Update insertItr until it will not be removed. Without this code,
// ReplaceAndDeleteLoad() can set |insertItr| as a dangling pointer.
while (IsUniformLoadToBeRemoved(&*insertItr)) ++insertItr;
uint32_t mergeBlockId = 0;
for (auto bi = structuredOrder.begin(); bi != structuredOrder.end(); ++bi) {
BasicBlock* bp = *bi;
// Check if we are exiting outermost control construct. If so, remember
// new load insertion point. Trying to keep register pressure down.
if (mergeBlockId == bp->id()) {
mergeBlockId = 0;
insertItr = bp->begin();
// Update insertItr until it will not be removed. Without this code,
// ReplaceAndDeleteLoad() can set |insertItr| as a dangling pointer.
while (IsUniformLoadToBeRemoved(&*insertItr)) ++insertItr;
}
for (Instruction* inst = &*bp->begin(); inst; inst = inst->NextNode()) {
if (inst->opcode() != SpvOpLoad) continue;
uint32_t varId;
Instruction* ptrInst = GetPtr(inst, &varId);
if (ptrInst->opcode() != SpvOpVariable) continue;
if (!IsUniformVar(varId)) continue;
if (IsSamplerOrImageVar(varId)) continue;
if (HasUnsupportedDecorates(inst->result_id())) continue;
if (IsVolatileLoad(*inst)) continue;
uint32_t replId;
const auto uItr = uniform2load_id_.find(varId);
if (uItr != uniform2load_id_.end()) {
replId = uItr->second;
} else {
if (mergeBlockId == 0) {
// Load is in dominating block; just remember it
uniform2load_id_[varId] = inst->result_id();
continue;
} else {
// Copy load into most recent dominating block and remember it
replId = TakeNextId();
std::unique_ptr<Instruction> newLoad(new Instruction(
context(), SpvOpLoad, inst->type_id(), replId,
{{spv_operand_type_t::SPV_OPERAND_TYPE_ID, {varId}}}));
get_def_use_mgr()->AnalyzeInstDefUse(&*newLoad);
insertItr = insertItr.InsertBefore(std::move(newLoad));
++insertItr;
uniform2load_id_[varId] = replId;
}
}
inst = ReplaceAndDeleteLoad(inst, replId, ptrInst);
modified = true;
}
// If we are outside of any control construct and entering one, remember
// the id of the merge block
if (mergeBlockId == 0) {
mergeBlockId = bp->MergeBlockIdIfAny();
}
}
return modified;
}
bool CommonUniformElimPass::CommonUniformLoadElimBlock(Function* func) {
bool modified = false;
for (auto& blk : *func) {
uniform2load_id_.clear();
for (Instruction* inst = &*blk.begin(); inst; inst = inst->NextNode()) {
if (inst->opcode() != SpvOpLoad) continue;
uint32_t varId;
Instruction* ptrInst = GetPtr(inst, &varId);
if (ptrInst->opcode() != SpvOpVariable) continue;
if (!IsUniformVar(varId)) continue;
if (!IsSamplerOrImageVar(varId)) continue;
if (HasUnsupportedDecorates(inst->result_id())) continue;
if (IsVolatileLoad(*inst)) continue;
uint32_t replId;
const auto uItr = uniform2load_id_.find(varId);
if (uItr != uniform2load_id_.end()) {
replId = uItr->second;
} else {
uniform2load_id_[varId] = inst->result_id();
continue;
}
inst = ReplaceAndDeleteLoad(inst, replId, ptrInst);
modified = true;
}
}
return modified;
}
bool CommonUniformElimPass::CommonExtractElimination(Function* func) {
// Find all composite ids with duplicate extracts.
for (auto bi = func->begin(); bi != func->end(); ++bi) {
for (auto ii = bi->begin(); ii != bi->end(); ++ii) {
if (ii->opcode() != SpvOpCompositeExtract) continue;
// TODO(greg-lunarg): Support multiple indices
if (ii->NumInOperands() > 2) continue;
if (HasUnsupportedDecorates(ii->result_id())) continue;
uint32_t compId = ii->GetSingleWordInOperand(kExtractCompositeIdInIdx);
uint32_t idx = ii->GetSingleWordInOperand(kExtractIdx0InIdx);
comp2idx2inst_[compId][idx].push_back(&*ii);
}
}
// For all defs of ids with duplicate extracts, insert new extracts
// after def, and replace and delete old extracts
bool modified = false;
for (auto bi = func->begin(); bi != func->end(); ++bi) {
for (auto ii = bi->begin(); ii != bi->end(); ++ii) {
const auto cItr = comp2idx2inst_.find(ii->result_id());
if (cItr == comp2idx2inst_.end()) continue;
for (auto idxItr : cItr->second) {
if (idxItr.second.size() < 2) continue;
uint32_t replId = TakeNextId();
std::unique_ptr<Instruction> newExtract(
Adding an unique id to Instruction generated by IRContext Each instruction is given an unique id that can be used for ordering purposes. The ids are generated via the IRContext. Major changes: * Instructions now contain a uint32_t for unique id and a cached context pointer * Most constructors have been modified to take a context as input * unfortunately I cannot remove the default and copy constructors, but developers should avoid these * Added accessors to parents of basic block and function * Removed the copy constructors for BasicBlock and Function and replaced them with Clone functions * Reworked BuildModule to return an IRContext owning the built module * Since all instructions require a context, the context now becomes the basic unit for IR * Added a constructor to context to create an owned module internally * Replaced uses of Instruction's copy constructor with Clone whereever I found them * Reworked the linker functionality to perform clones into a different context instead of moves * Updated many tests to be consistent with the above changes * Still need to add new tests to cover added functionality * Added comparison operators to Instruction * Added an internal option to LinkerOptions to verify merged ids are unique * Added a test for the linker to verify merged ids are unique * Updated MergeReturnPass to supply a context * Updated DecorationManager to supply a context for cloned decorations * Reworked several portions of the def use tests in anticipation of next set of changes
2017-11-14 19:11:50 +00:00
idxItr.second.front()->Clone(context()));
newExtract->SetResultId(replId);
get_def_use_mgr()->AnalyzeInstDefUse(&*newExtract);
++ii;
ii = ii.InsertBefore(std::move(newExtract));
for (auto instItr : idxItr.second) {
uint32_t resId = instItr->result_id();
context()->KillNamesAndDecorates(resId);
(void)context()->ReplaceAllUsesWith(resId, replId);
context()->KillInst(instItr);
}
modified = true;
}
}
}
return modified;
}
bool CommonUniformElimPass::EliminateCommonUniform(Function* func) {
bool modified = false;
modified |= UniformAccessChainConvert(func);
modified |= CommonUniformLoadElimination(func);
modified |= CommonExtractElimination(func);
modified |= CommonUniformLoadElimBlock(func);
return modified;
}
void CommonUniformElimPass::Initialize() {
// Clear collections.
comp2idx2inst_.clear();
// Initialize extension whitelist
InitExtensions();
}
bool CommonUniformElimPass::AllExtensionsSupported() const {
// If any extension not in whitelist, return false
for (auto& ei : get_module()->extensions()) {
const char* extName =
reinterpret_cast<const char*>(&ei.GetInOperand(0).words[0]);
if (extensions_whitelist_.find(extName) == extensions_whitelist_.end())
return false;
}
return true;
}
Pass::Status CommonUniformElimPass::ProcessImpl() {
// Assumes all control flow structured.
// TODO(greg-lunarg): Do SSA rewrite for non-structured control flow
if (!context()->get_feature_mgr()->HasCapability(SpvCapabilityShader))
return Status::SuccessWithoutChange;
// Assumes logical addressing only
// TODO(greg-lunarg): Add support for physical addressing
if (context()->get_feature_mgr()->HasCapability(SpvCapabilityAddresses))
return Status::SuccessWithoutChange;
// Do not process if any disallowed extensions are enabled
if (!AllExtensionsSupported()) return Status::SuccessWithoutChange;
// Do not process if module contains OpGroupDecorate. Additional
// support required in KillNamesAndDecorates().
// TODO(greg-lunarg): Add support for OpGroupDecorate
for (auto& ai : get_module()->annotations())
if (ai.opcode() == SpvOpGroupDecorate) return Status::SuccessWithoutChange;
// If non-32-bit integer type in module, terminate processing
// TODO(): Handle non-32-bit integer constants in access chains
for (const Instruction& inst : get_module()->types_values())
if (inst.opcode() == SpvOpTypeInt &&
inst.GetSingleWordInOperand(kTypeIntWidthInIdx) != 32)
return Status::SuccessWithoutChange;
// Process entry point functions
ProcessFunction pfn = [this](Function* fp) {
return EliminateCommonUniform(fp);
};
bool modified = ProcessEntryPointCallTree(pfn, get_module());
return modified ? Status::SuccessWithChange : Status::SuccessWithoutChange;
}
CommonUniformElimPass::CommonUniformElimPass() = default;
Pass::Status CommonUniformElimPass::Process() {
Initialize();
return ProcessImpl();
}
void CommonUniformElimPass::InitExtensions() {
extensions_whitelist_.clear();
extensions_whitelist_.insert({
"SPV_AMD_shader_explicit_vertex_parameter",
"SPV_AMD_shader_trinary_minmax",
"SPV_AMD_gcn_shader",
"SPV_KHR_shader_ballot",
"SPV_AMD_shader_ballot",
"SPV_AMD_gpu_shader_half_float",
"SPV_KHR_shader_draw_parameters",
"SPV_KHR_subgroup_vote",
"SPV_KHR_16bit_storage",
"SPV_KHR_device_group",
"SPV_KHR_multiview",
"SPV_NVX_multiview_per_view_attributes",
"SPV_NV_viewport_array2",
"SPV_NV_stereo_view_rendering",
"SPV_NV_sample_mask_override_coverage",
"SPV_NV_geometry_shader_passthrough",
"SPV_AMD_texture_gather_bias_lod",
"SPV_KHR_storage_buffer_storage_class",
// SPV_KHR_variable_pointers
// Currently do not support extended pointer expressions
"SPV_AMD_gpu_shader_int16",
"SPV_KHR_post_depth_coverage",
"SPV_KHR_shader_atomic_counter_ops",
2018-03-08 13:54:00 +00:00
"SPV_EXT_shader_stencil_export",
"SPV_EXT_shader_viewport_index_layer",
"SPV_AMD_shader_image_load_store_lod",
"SPV_AMD_shader_fragment_mask",
"SPV_EXT_fragment_fully_covered",
"SPV_AMD_gpu_shader_half_float_fetch",
"SPV_GOOGLE_decorate_string",
"SPV_GOOGLE_hlsl_functionality1",
"SPV_NV_shader_subgroup_partitioned",
"SPV_EXT_descriptor_indexing",
});
}
} // namespace opt
} // namespace spvtools