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transforms: Add a ProgramBuilder::Sym() helper 

This creates a new, unnamed symbol.

Change-Id: I0ea11e812296c3215ba624a18777d3e7233e2ae4
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/49441
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Auto-Submit: James Price <jrprice@google.com>
This commit is contained in:
James Price 2021-04-29 12:59:14 +00:00 committed by Commit Bot service account
parent 77f7f5d369
commit 65ae64d009
9 changed files with 26 additions and 24 deletions
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3
src/program_builder.h
View File

@ -878,6 +878,9 @@ class ProgramBuilder {
// AST helper methods
//////////////////////////////////////////////////////////////////////////////
/// @return a new unnamed symbol
Symbol Sym() { return Symbols().New(); }
/// @param name the symbol string
/// @return a Symbol with the given name
Symbol Sym(const std::string& name) { return Symbols().Register(name); }

6
src/transform/calculate_array_length.cc
View File

@ -80,7 +80,7 @@ Output CalculateArrayLength::Run(const Program* in, const DataMap&) {
std::unordered_map<sem::StructType*, Symbol> buffer_size_intrinsics;
auto get_buffer_size_intrinsic = [&](sem::StructType* buffer_type) {
return utils::GetOrCreate(buffer_size_intrinsics, buffer_type, [&] {
auto name = ctx.dst->Symbols().New();
auto name = ctx.dst->Sym();
auto* func = ctx.dst->create<ast::Function>(
name,
ast::VariableList{
@ -183,7 +183,7 @@ Output CalculateArrayLength::Run(const Program* in, const DataMap&) {
// Construct the variable that'll hold the result of
// RWByteAddressBuffer.GetDimensions()
auto* buffer_size_result = ctx.dst->Decl(ctx.dst->Var(
ctx.dst->Symbols().New(), ctx.dst->ty.u32(),
ctx.dst->Sym(), ctx.dst->ty.u32(),
ast::StorageClass::kFunction, ctx.dst->Expr(0u)));
// Call storage_buffer.GetDimensions(buffer_size_result)
@ -199,7 +199,7 @@ Output CalculateArrayLength::Run(const Program* in, const DataMap&) {
// total_storage_buffer_size - array_offset
// array_length = ----------------------------------------
// array_stride
auto name = ctx.dst->Symbols().New();
auto name = ctx.dst->Sym();
uint32_t array_offset = array_member_sem->Offset();
uint32_t array_stride = array_member_sem->Size();
auto* array_length_var = ctx.dst->Decl(ctx.dst->Const(

8
src/transform/canonicalize_entry_point_io.cc
View File

@ -99,7 +99,7 @@ Output CanonicalizeEntryPointIO::Run(const Program* in, const DataMap&) {
if (!func->params().empty()) {
// Collect all parameters and build a list of new struct members.
auto new_struct_param_symbol = ctx.dst->Symbols().New();
auto new_struct_param_symbol = ctx.dst->Sym();
ast::StructMemberList new_struct_members;
for (auto* param : func->params()) {
auto param_name = ctx.Clone(param->symbol());
@ -175,7 +175,7 @@ Output CanonicalizeEntryPointIO::Run(const Program* in, const DataMap&) {
StructMemberComparator);
// Create the new struct type.
auto in_struct_name = ctx.dst->Symbols().New();
auto in_struct_name = ctx.dst->Sym();
auto* in_struct =
ctx.dst->create<sem::StructType>(ctx.dst->create<ast::Struct>(
in_struct_name, new_struct_members, ast::DecorationList{}));
@ -221,7 +221,7 @@ Output CanonicalizeEntryPointIO::Run(const Program* in, const DataMap&) {
StructMemberComparator);
// Create the new struct type.
auto out_struct_name = ctx.dst->Symbols().New();
auto out_struct_name = ctx.dst->Sym();
auto* out_struct =
ctx.dst->create<sem::StructType>(ctx.dst->create<ast::Struct>(
out_struct_name, new_struct_members, ast::DecorationList{}));
@ -242,7 +242,7 @@ Output CanonicalizeEntryPointIO::Run(const Program* in, const DataMap&) {
if (!ret->value()->Is<ast::IdentifierExpression>()) {
// Create a const to hold the return value expression to avoid
// re-evaluating it multiple times.
auto temp = ctx.dst->Symbols().New();
auto temp = ctx.dst->Sym();
auto* temp_var = ctx.dst->Decl(
ctx.dst->Const(temp, ctx.Clone(ret_type), new_ret_value()));
ctx.InsertBefore(ret_sem->Block()->statements(), ret, temp_var);

10
src/transform/decompose_storage_access.cc
View File

@ -425,7 +425,7 @@ struct State {
ast::Function* func = nullptr;
if (auto* intrinsic = IntrinsicLoadFor(ctx.dst, el_ty)) {
func = ctx.dst->create<ast::Function>(
ctx.dst->Symbols().New(), params, ctx.Clone(el_ty), nullptr,
ctx.dst->Sym(), params, ctx.Clone(el_ty), nullptr,
ast::DecorationList{intrinsic}, ast::DecorationList{});
} else {
ast::ExpressionList values;
@ -458,7 +458,7 @@ struct State {
}
}
func = ctx.dst->create<ast::Function>(
ctx.dst->Symbols().New(), params, ctx.Clone(el_ty),
ctx.dst->Sym(), params, ctx.Clone(el_ty),
ctx.dst->Block(
ctx.dst->Return(ctx.dst->create<ast::TypeConstructorExpression>(
ctx.Clone(el_ty), values))),
@ -489,7 +489,7 @@ struct State {
ast::Function* func = nullptr;
if (auto* intrinsic = IntrinsicStoreFor(ctx.dst, el_ty)) {
func = ctx.dst->create<ast::Function>(
ctx.dst->Symbols().New(), params, ctx.dst->ty.void_(), nullptr,
ctx.dst->Sym(), params, ctx.dst->ty.void_(), nullptr,
ast::DecorationList{intrinsic}, ast::DecorationList{});
} else {
@ -531,8 +531,8 @@ struct State {
}
}
func = ctx.dst->create<ast::Function>(
ctx.dst->Symbols().New(), params, ctx.dst->ty.void_(),
ctx.dst->Block(body), ast::DecorationList{}, ast::DecorationList{});
ctx.dst->Sym(), params, ctx.dst->ty.void_(), ctx.dst->Block(body),
ast::DecorationList{}, ast::DecorationList{});
}
InsertGlobal(ctx, insert_after, func);

4
src/transform/first_index_offset.cc
View File

@ -134,11 +134,11 @@ Output FirstIndexOffset::Run(const Program* in, const DataMap& data) {
offset += 4;
}
auto struct_type =
ctx.dst->Structure(ctx.dst->Symbols().New(), std::move(members),
ctx.dst->Structure(ctx.dst->Sym(), std::move(members),
{ctx.dst->create<ast::StructBlockDecoration>()});
// Create a global to hold the uniform buffer
Symbol buffer_name = ctx.dst->Symbols().New();
Symbol buffer_name = ctx.dst->Sym();
ctx.dst->Global(buffer_name, struct_type, ast::StorageClass::kUniform,
nullptr,
ast::DecorationList{

2
src/transform/hlsl.cc
View File

@ -98,7 +98,7 @@ void Hlsl::PromoteInitializersToConstVar(CloneContext& ctx) const {
auto* src_ty = src_sem_expr->Type();
if (src_ty->IsAnyOf<sem::ArrayType, sem::StructType>()) {
// Create a new symbol for the constant
auto dst_symbol = ctx.dst->Symbols().New();
auto dst_symbol = ctx.dst->Sym();
// Clone the type
auto* dst_ty = ctx.Clone(src_ty);
// Clone the initializer

2
src/transform/renamer.cc
View File

@ -906,7 +906,7 @@ Output Renamer::Run(const Program* in, const DataMap&) {
break;
}
auto sym_out = ctx.dst->Symbols().New();
auto sym_out = ctx.dst->Sym();
remappings.emplace(name_in, ctx.dst->Symbols().NameFor(sym_out));
return sym_out;
});

10
src/transform/spirv.cc
View File

@ -154,7 +154,7 @@ void Spirv::HandleEntryPointIOTypes(CloneContext& ctx) const {
if (!func->return_type()->Is<sem::Void>()) {
ast::StatementList stores;
auto store_value_symbol = ctx.dst->Symbols().New();
auto store_value_symbol = ctx.dst->Sym();
HoistToOutputVariables(
ctx, func, func->return_type(), func->return_type(),
func->return_type_decorations(), {}, store_value_symbol, stores);
@ -162,7 +162,7 @@ void Spirv::HandleEntryPointIOTypes(CloneContext& ctx) const {
// Create a function that writes a return value to all output variables.
auto* store_value =
ctx.dst->Param(store_value_symbol, ctx.Clone(func->return_type()));
auto return_func_symbol = ctx.dst->Symbols().New();
auto return_func_symbol = ctx.dst->Sym();
auto* return_func = ctx.dst->create<ast::Function>(
return_func_symbol, ast::VariableList{store_value},
ctx.dst->ty.void_(), ctx.dst->create<ast::BlockStatement>(stores),
@ -262,7 +262,7 @@ Symbol Spirv::HoistToInputVariables(
return !deco->IsAnyOf<ast::BuiltinDecoration,
ast::LocationDecoration>();
});
auto global_var_symbol = ctx.dst->Symbols().New();
auto global_var_symbol = ctx.dst->Sym();
auto* global_var =
ctx.dst->Var(global_var_symbol, ctx.Clone(declared_ty),
ast::StorageClass::kInput, nullptr, new_decorations);
@ -279,7 +279,7 @@ Symbol Spirv::HoistToInputVariables(
init_value_names.emplace_back(member_var);
}
auto func_var_symbol = ctx.dst->Symbols().New();
auto func_var_symbol = ctx.dst->Sym();
if (func->body()->empty()) {
// The return value should never get used.
return func_var_symbol;
@ -315,7 +315,7 @@ void Spirv::HoistToOutputVariables(CloneContext& ctx,
return !deco->IsAnyOf<ast::BuiltinDecoration,
ast::LocationDecoration>();
});
auto global_var_symbol = ctx.dst->Symbols().New();
auto global_var_symbol = ctx.dst->Sym();
auto* global_var =
ctx.dst->Var(global_var_symbol, ctx.Clone(declared_ty),
ast::StorageClass::kOutput, nullptr, new_decorations);

5
src/transform/vertex_pulling.cc
View File

@ -487,11 +487,10 @@ struct State {
new_members.push_back(
ctx.dst->Member(member_sym, member_type, std::move(member_decos)));
}
auto new_struct =
ctx.dst->Structure(ctx.dst->Symbols().New(), new_members);
auto new_struct = ctx.dst->Structure(ctx.dst->Sym(), new_members);
// Create a new function parameter with this struct.
auto* new_param = ctx.dst->Param(ctx.dst->Symbols().New(), new_struct);
auto* new_param = ctx.dst->Param(ctx.dst->Sym(), new_struct);
new_function_parameters.push_back(new_param);
// Copy values from the new parameter to the function-scope variable.