X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fglsl%2Foptimize.cpp;h=768cfd5dc761659f504011780e3e0cbc74f90c0d;hp=a24d85dd5f0b7f025e01ab7b13dca85238b09535;hb=e2ed3de4cbbc682ff490a3b0b760b8a45260f611;hpb=c39bb707ff8678d0675538994dc05182e61da193 diff --git a/source/glsl/optimize.cpp b/source/glsl/optimize.cpp index a24d85dd..768cfd5d 100644 --- a/source/glsl/optimize.cpp +++ b/source/glsl/optimize.cpp @@ -11,10 +11,6 @@ namespace Msp { namespace GL { namespace SL { -ConstantSpecializer::ConstantSpecializer(): - values(0) -{ } - void ConstantSpecializer::apply(Stage &stage, const map &v) { values = &v; @@ -59,11 +55,6 @@ void ConstantSpecializer::visit(VariableDeclaration &var) } -InlineableFunctionLocator::InlineableFunctionLocator(): - current_function(0), - return_count(0) -{ } - void InlineableFunctionLocator::visit(FunctionCall &call) { FunctionDeclaration *def = call.declaration; @@ -118,11 +109,6 @@ void InlineableFunctionLocator::visit(Return &ret) } -InlineContentInjector::InlineContentInjector(): - source_func(0), - pass(REFERENCED) -{ } - string InlineContentInjector::apply(Stage &stage, FunctionDeclaration &target_func, Block &tgt_blk, const NodeList::iterator &ins_pt, FunctionCall &call) { source_func = call.declaration->definition; @@ -257,12 +243,6 @@ void InlineContentInjector::visit(Return &ret) } -FunctionInliner::FunctionInliner(): - current_function(0), - r_any_inlined(false), - r_inlined_here(false) -{ } - bool FunctionInliner::apply(Stage &s) { stage = &s; @@ -348,16 +328,6 @@ void FunctionInliner::visit(Iteration &iter) } -ExpressionInliner::ExpressionInliner(): - r_ref_info(0), - r_trivial(false), - access_read(true), - access_write(false), - iteration_init(false), - iteration_body(0), - r_oper(0) -{ } - bool ExpressionInliner::apply(Stage &s) { s.content.visit(*this); @@ -550,6 +520,153 @@ void ExpressionInliner::visit(Iteration &iter) } +bool AggregateDismantler::apply(Stage &stage) +{ + stage.content.visit(*this); + + bool any_dismantled = false; + for(const auto &kvp: aggregates) + { + if(kvp.second.referenced || !kvp.second.members_referenced) + continue; + + for(const AggregateMember &m: kvp.second.members) + { + VariableDeclaration *var = new VariableDeclaration; + var->source = kvp.first->source; + var->line = kvp.first->line; + var->name = get_unused_variable_name(*kvp.second.decl_scope, format("%s_%s", kvp.second.declaration->name, m.declaration->name)); + var->type = m.declaration->type; + if(m.initializer) + var->init_expression = m.initializer->clone(); + + kvp.second.decl_scope->body.insert(kvp.second.insert_point, var); + + for(RefPtr *r: m.references) + { + VariableReference *ref = new VariableReference; + ref->name = var->name; + *r = ref; + } + + any_dismantled = true; + } + } + + return any_dismantled; +} + +void AggregateDismantler::visit(Block &block) +{ + SetForScope set_block(current_block, &block); + for(auto i=block.body.begin(); i!=block.body.end(); ++i) + { + insert_point = i; + (*i)->visit(*this); + } +} + +void AggregateDismantler::visit(RefPtr &expr) +{ + r_aggregate_ref = 0; + expr->visit(*this); + if(r_aggregate_ref && r_reference.chain_len==1 && (r_reference.chain[0]&0x3F)!=0x3F) + { + r_aggregate_ref->members[r_reference.chain[0]&0x3F].references.push_back(&expr); + r_aggregate_ref->members_referenced = true; + } + r_aggregate_ref = 0; +} + +void AggregateDismantler::visit(VariableReference &var) +{ + if(composite_reference) + r_reference.declaration = var.declaration; + else + { + auto i = aggregates.find(var.declaration); + if(i!=aggregates.end()) + i->second.referenced = true; + } +} + +void AggregateDismantler::visit_composite(RefPtr &expr) +{ + if(!composite_reference) + r_reference = Assignment::Target(); + + SetFlag set_composite(composite_reference); + visit(expr); +} + +void AggregateDismantler::visit(MemberAccess &memacc) +{ + visit_composite(memacc.left); + + add_to_chain(r_reference, Assignment::Target::MEMBER, memacc.index); + + if(r_reference.declaration && r_reference.chain_len==1) + { + auto i = aggregates.find(r_reference.declaration); + r_aggregate_ref = (i!=aggregates.end() ? &i->second : 0); + } + else + r_aggregate_ref = 0; +} + +void AggregateDismantler::visit(BinaryExpression &binary) +{ + if(binary.oper->token[0]=='[') + { + visit_composite(binary.left); + { + SetFlag clear_composite(composite_reference, false); + visit(binary.right); + } + + add_to_chain(r_reference, Assignment::Target::ARRAY, 0x3F); + } + else + { + SetFlag clear_composite(composite_reference, false); + TraversingVisitor::visit(binary); + } +} + +void AggregateDismantler::visit(VariableDeclaration &var) +{ + TraversingVisitor::visit(var); + + if(var.interface.empty()) + if(const StructDeclaration *strct = dynamic_cast(var.type_declaration)) + { + const FunctionCall *init_call = dynamic_cast(var.init_expression.get()); + if((init_call && init_call->constructor) || !var.init_expression) + { + + Aggregate &aggre = aggregates[&var]; + aggre.declaration = &var; + aggre.decl_scope = current_block; + aggre.insert_point = insert_point; + + unsigned i = 0; + for(const RefPtr &s: strct->members.body) + { + if(const VariableDeclaration *mem_decl = dynamic_cast(s.get())) + { + AggregateMember member; + member.declaration = mem_decl; + if(init_call) + member.initializer = init_call->arguments[i]; + aggre.members.push_back(member); + } + ++i; + } + } + } +} + + template T ConstantFolder::evaluate_logical(char oper, T left, T right) { @@ -983,10 +1100,6 @@ void ConstantConditionEliminator::visit(Iteration &iter) } -UnreachableCodeRemover::UnreachableCodeRemover(): - reachable(true) -{ } - bool UnreachableCodeRemover::apply(Stage &stage) { stage.content.visit(*this); @@ -1080,17 +1193,6 @@ void UnusedTypeRemover::visit(FunctionDeclaration &func) } -UnusedVariableRemover::UnusedVariableRemover(): - stage(0), - interface_block(0), - r_assignment(0), - assignment_target(false), - r_side_effects(false), - in_struct(false), - composite_reference(false), - in_loop(0) -{ } - bool UnusedVariableRemover::apply(Stage &s) { stage = &s; @@ -1140,10 +1242,10 @@ void UnusedVariableRemover::referenced(const Assignment::Target &target, Node &n { Assignment::Target::ChainType type1 = static_cast(a->target.chain[j]&0xC0); Assignment::Target::ChainType type2 = static_cast(target.chain[j]&0xC0); + unsigned index1 = a->target.chain[j]&0x3F; + unsigned index2 = target.chain[j]&0x3F; if(type1==Assignment::Target::SWIZZLE || type2==Assignment::Target::SWIZZLE) { - unsigned index1 = a->target.chain[j]&0x3F; - unsigned index2 = target.chain[j]&0x3F; if(type1==Assignment::Target::SWIZZLE && type2==Assignment::Target::SWIZZLE) covered = index1&index2; else if(type1==Assignment::Target::ARRAY && index1<4) @@ -1154,7 +1256,7 @@ void UnusedVariableRemover::referenced(const Assignment::Target &target, Node &n covered as true */ } else - covered = (a->target.chain[j]==target.chain[j]); + covered = (type1==type2 && (index1==index2 || index1==0x3F || index2==0x3F)); } if(covered)