mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-30 23:10:05 +00:00
c7da51a085
This CL follows up on the opt namespacing CLs by removing the unnecessary opt:: and opt::analysis:: namespace prefixes.
113 lines
3.6 KiB
C++
113 lines
3.6 KiB
C++
// 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 "inline_opaque_pass.h"
|
|
|
|
namespace spvtools {
|
|
namespace opt {
|
|
|
|
namespace {
|
|
|
|
const uint32_t kTypePointerTypeIdInIdx = 1;
|
|
|
|
} // anonymous namespace
|
|
|
|
bool InlineOpaquePass::IsOpaqueType(uint32_t typeId) {
|
|
const Instruction* typeInst = get_def_use_mgr()->GetDef(typeId);
|
|
switch (typeInst->opcode()) {
|
|
case SpvOpTypeSampler:
|
|
case SpvOpTypeImage:
|
|
case SpvOpTypeSampledImage:
|
|
return true;
|
|
case SpvOpTypePointer:
|
|
return IsOpaqueType(
|
|
typeInst->GetSingleWordInOperand(kTypePointerTypeIdInIdx));
|
|
default:
|
|
break;
|
|
}
|
|
// TODO(greg-lunarg): Handle arrays containing opaque type
|
|
if (typeInst->opcode() != SpvOpTypeStruct) return false;
|
|
// Return true if any member is opaque
|
|
return !typeInst->WhileEachInId([this](const uint32_t* tid) {
|
|
if (IsOpaqueType(*tid)) return false;
|
|
return true;
|
|
});
|
|
}
|
|
|
|
bool InlineOpaquePass::HasOpaqueArgsOrReturn(const Instruction* callInst) {
|
|
// Check return type
|
|
if (IsOpaqueType(callInst->type_id())) return true;
|
|
// Check args
|
|
int icnt = 0;
|
|
return !callInst->WhileEachInId([&icnt, this](const uint32_t* iid) {
|
|
if (icnt > 0) {
|
|
const Instruction* argInst = get_def_use_mgr()->GetDef(*iid);
|
|
if (IsOpaqueType(argInst->type_id())) return false;
|
|
}
|
|
++icnt;
|
|
return true;
|
|
});
|
|
}
|
|
|
|
bool InlineOpaquePass::InlineOpaque(Function* func) {
|
|
bool modified = false;
|
|
// Using block iterators here because of block erasures and insertions.
|
|
for (auto bi = func->begin(); bi != func->end(); ++bi) {
|
|
for (auto ii = bi->begin(); ii != bi->end();) {
|
|
if (IsInlinableFunctionCall(&*ii) && HasOpaqueArgsOrReturn(&*ii)) {
|
|
// Inline call.
|
|
std::vector<std::unique_ptr<BasicBlock>> newBlocks;
|
|
std::vector<std::unique_ptr<Instruction>> newVars;
|
|
GenInlineCode(&newBlocks, &newVars, ii, bi);
|
|
// If call block is replaced with more than one block, point
|
|
// succeeding phis at new last block.
|
|
if (newBlocks.size() > 1) UpdateSucceedingPhis(newBlocks);
|
|
// Replace old calling block with new block(s).
|
|
bi = bi.Erase();
|
|
bi = bi.InsertBefore(&newBlocks);
|
|
// Insert new function variables.
|
|
if (newVars.size() > 0)
|
|
func->begin()->begin().InsertBefore(std::move(newVars));
|
|
// Restart inlining at beginning of calling block.
|
|
ii = bi->begin();
|
|
modified = true;
|
|
} else {
|
|
++ii;
|
|
}
|
|
}
|
|
}
|
|
return modified;
|
|
}
|
|
|
|
void InlineOpaquePass::Initialize() { InitializeInline(); }
|
|
|
|
Pass::Status InlineOpaquePass::ProcessImpl() {
|
|
// Do opaque inlining on each function in entry point call tree
|
|
ProcessFunction pfn = [this](Function* fp) { return InlineOpaque(fp); };
|
|
bool modified = ProcessEntryPointCallTree(pfn, get_module());
|
|
return modified ? Status::SuccessWithChange : Status::SuccessWithoutChange;
|
|
}
|
|
|
|
InlineOpaquePass::InlineOpaquePass() = default;
|
|
|
|
Pass::Status InlineOpaquePass::Process() {
|
|
Initialize();
|
|
return ProcessImpl();
|
|
}
|
|
|
|
} // namespace opt
|
|
} // namespace spvtools
|