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Move the def-use analysis for single inst to public

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qining 2016-08-12 10:05:58 -04:00
parent e5bb46d274
commit 7a94e66433
2 changed files with 25 additions and 25 deletions
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44
source/opt/def_use_manager.cpp
View File

@ -41,6 +41,28 @@ void DefUseManager::AnalyzeDefUse(ir::Module* module) {
std::placeholders::_1));
}
void DefUseManager::AnalyzeInstDefUse(ir::Instruction* inst) {
const uint32_t def_id = inst->result_id();
if (def_id != 0) id_to_def_[def_id] = inst;
for (uint32_t i = 0; i < inst->NumOperands(); ++i) {
switch (inst->GetOperand(i).type) {
// For any id type but result id type
case SPV_OPERAND_TYPE_ID:
case SPV_OPERAND_TYPE_TYPE_ID:
case SPV_OPERAND_TYPE_MEMORY_SEMANTICS_ID:
case SPV_OPERAND_TYPE_SCOPE_ID: {
uint32_t use_id = inst->GetSingleWordOperand(i);
// use_id is used by the instruction generating def_id.
id_to_uses_[use_id].push_back({inst, i});
if (def_id != 0) result_id_to_used_ids_[def_id].push_back(use_id);
} break;
default:
break;
}
}
}
ir::Instruction* DefUseManager::GetDef(uint32_t id) {
if (id_to_def_.count(id) == 0) return nullptr;
return id_to_def_.at(id);
@ -94,28 +116,6 @@ bool DefUseManager::ReplaceAllUsesWith(uint32_t before, uint32_t after) {
return true;
}
void DefUseManager::AnalyzeInstDefUse(ir::Instruction* inst) {
const uint32_t def_id = inst->result_id();
if (def_id != 0) id_to_def_[def_id] = inst;
for (uint32_t i = 0; i < inst->NumOperands(); ++i) {
switch (inst->GetOperand(i).type) {
// For any id type but result id type
case SPV_OPERAND_TYPE_ID:
case SPV_OPERAND_TYPE_TYPE_ID:
case SPV_OPERAND_TYPE_MEMORY_SEMANTICS_ID:
case SPV_OPERAND_TYPE_SCOPE_ID: {
uint32_t use_id = inst->GetSingleWordOperand(i);
// use_id is used by the instruction generating def_id.
id_to_uses_[use_id].push_back({inst, i});
if (def_id != 0) result_id_to_used_ids_[def_id].push_back(use_id);
} break;
default:
break;
}
}
}
} // namespace analysis
} // namespace opt
} // namespace spvtools

6
source/opt/def_use_manager.h
View File

@ -63,6 +63,9 @@ class DefUseManager {
// const overload for ForEachInst().
void AnalyzeDefUse(ir::Module* module);
// Analyzes the defs and uses in the given |inst|.
void AnalyzeInstDefUse(ir::Instruction* inst);
// Returns the def instruction for the given |id|. If there is no instruction
// defining |id|, returns nullptr.
ir::Instruction* GetDef(uint32_t id);
@ -91,9 +94,6 @@ class DefUseManager {
using ResultIdToUsedIdsMap =
std::unordered_map<uint32_t, std::vector<uint32_t>>;
// Analyzes the defs and uses in the given |inst|.
void AnalyzeInstDefUse(ir::Instruction* inst);
IdToDefMap id_to_def_; // Mapping from ids to their definitions
IdToUsesMap id_to_uses_; // Mapping from ids to their uses
// Mapping from result ids to the ids used in the instructions generating the