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Shader_IR: Address Feedback

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This commit is contained in:
Fernando Sahmkow 2020-01-04 14:40:57 -04:00
parent b3371ed09e
commit 3dd6b55851
5 changed files with 19 additions and 38 deletions
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17
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
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@ -751,10 +751,8 @@ private:
Expression Visit(const Node& node) { Expression Visit(const Node& node) {
if (const auto operation = std::get_if<OperationNode>(&*node)) { if (const auto operation = std::get_if<OperationNode>(&*node)) {
auto amend_index = operation->GetAmendIndex(); if (const auto amend_index = operation->GetAmendIndex()) {
if (amend_index) { Visit(ir.GetAmendNode(*amend_index)).CheckVoid();
const Node& amend_node = ir.GetAmendNode(*amend_index);
Visit(amend_node).CheckVoid();
} }
const auto operation_index = static_cast<std::size_t>(operation->GetCode()); const auto operation_index = static_cast<std::size_t>(operation->GetCode());
if (operation_index >= operation_decompilers.size()) { if (operation_index >= operation_decompilers.size()) {
@ -877,10 +875,8 @@ private:
} }
if (const auto conditional = std::get_if<ConditionalNode>(&*node)) { if (const auto conditional = std::get_if<ConditionalNode>(&*node)) {
auto amend_index = conditional->GetAmendIndex(); if (const auto amend_index = conditional->GetAmendIndex()) {
if (amend_index) { Visit(ir.GetAmendNode(*amend_index)).CheckVoid();
const Node& amend_node = ir.GetAmendNode(*amend_index);
Visit(amend_node).CheckVoid();
} }
// It's invalid to call conditional on nested nodes, use an operation instead // It's invalid to call conditional on nested nodes, use an operation instead
code.AddLine("if ({}) {{", Visit(conditional->GetCondition()).AsBool()); code.AddLine("if ({}) {{", Visit(conditional->GetCondition()).AsBool());
@ -894,11 +890,6 @@ private:
} }
if (const auto comment = std::get_if<CommentNode>(&*node)) { if (const auto comment = std::get_if<CommentNode>(&*node)) {
auto amend_index = comment->GetAmendIndex();
if (amend_index) {
const Node& amend_node = ir.GetAmendNode(*amend_index);
Visit(amend_node).CheckVoid();
}
code.AddLine("// " + comment->GetText()); code.AddLine("// " + comment->GetText());
return {}; return {};
} }

18
src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
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@ -954,10 +954,8 @@ private:
Expression Visit(const Node& node) { Expression Visit(const Node& node) {
if (const auto operation = std::get_if<OperationNode>(&*node)) { if (const auto operation = std::get_if<OperationNode>(&*node)) {
auto amend_index = operation->GetAmendIndex(); if (const auto amend_index = operation->GetAmendIndex()) {
if (amend_index) { [[maybe_unused]] const Type type = Visit(ir.GetAmendNode(*amend_index)).type;
const Node& amend_node = ir.GetAmendNode(*amend_index);
[[maybe_unused]] const Type type = Visit(amend_node).type;
ASSERT(type == Type::Void); ASSERT(type == Type::Void);
} }
const auto operation_index = static_cast<std::size_t>(operation->GetCode()); const auto operation_index = static_cast<std::size_t>(operation->GetCode());
@ -1148,10 +1146,8 @@ private:
} }
if (const auto conditional = std::get_if<ConditionalNode>(&*node)) { if (const auto conditional = std::get_if<ConditionalNode>(&*node)) {
auto amend_index = conditional->GetAmendIndex(); if (const auto amend_index = conditional->GetAmendIndex()) {
if (amend_index) { [[maybe_unused]] const Type type = Visit(ir.GetAmendNode(*amend_index)).type;
const Node& amend_node = ir.GetAmendNode(*amend_index);
[[maybe_unused]] const Type type = Visit(amend_node).type;
ASSERT(type == Type::Void); ASSERT(type == Type::Void);
} }
// It's invalid to call conditional on nested nodes, use an operation instead // It's invalid to call conditional on nested nodes, use an operation instead
@ -1176,12 +1172,6 @@ private:
} }
if (const auto comment = std::get_if<CommentNode>(&*node)) { if (const auto comment = std::get_if<CommentNode>(&*node)) {
auto amend_index = comment->GetAmendIndex();
if (amend_index) {
const Node& amend_node = ir.GetAmendNode(*amend_index);
[[maybe_unused]] const Type type = Visit(amend_node).type;
ASSERT(type == Type::Void);
}
Name(OpUndef(t_void), comment->GetText()); Name(OpUndef(t_void), comment->GetText());
return {}; return {};
} }

10
src/video_core/shader/node.h
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@ -394,14 +394,14 @@ using Meta =
class AmendNode { class AmendNode {
public: public:
std::optional<u32> GetAmendIndex() const { std::optional<std::size_t> GetAmendIndex() const {
if (amend_index == amend_null_index) { if (amend_index == amend_null_index) {
return std::nullopt; return std::nullopt;
} }
return {amend_index}; return {amend_index};
} }
void SetAmendIndex(u32 index) { void SetAmendIndex(std::size_t index) {
amend_index = index; amend_index = index;
} }
@ -410,8 +410,8 @@ public:
} }
private: private:
static constexpr u32 amend_null_index = 0xFFFFFFFF; static constexpr std::size_t amend_null_index = 0xFFFFFFFFFFFFFFFFULL;
u32 amend_index{amend_null_index}; std::size_t amend_index{amend_null_index};
}; };
/// Holds any kind of operation that can be done in the IR /// Holds any kind of operation that can be done in the IR
@ -652,7 +652,7 @@ private:
}; };
/// Commentary, can be dropped /// Commentary, can be dropped
class CommentNode final : public AmendNode { class CommentNode final {
public: public:
explicit CommentNode(std::string text) : text{std::move(text)} {} explicit CommentNode(std::string text) : text{std::move(text)} {}

4
src/video_core/shader/shader_ir.cpp
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@ -446,8 +446,8 @@ Node ShaderIR::BitfieldInsert(Node base, Node insert, u32 offset, u32 bits) {
Immediate(bits)); Immediate(bits));
} }
u32 ShaderIR::DeclareAmend(Node new_amend) { std::size_t ShaderIR::DeclareAmend(Node new_amend) {
const u32 id = static_cast<u32>(amend_code.size()); const std::size_t id = amend_code.size();
amend_code.push_back(new_amend); amend_code.push_back(new_amend);
return id; return id;
} }

8
src/video_core/shader/shader_ir.h
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@ -176,7 +176,7 @@ public:
/// Returns a condition code evaluated from internal flags /// Returns a condition code evaluated from internal flags
Node GetConditionCode(Tegra::Shader::ConditionCode cc) const; Node GetConditionCode(Tegra::Shader::ConditionCode cc) const;
const Node& GetAmendNode(u32 index) const { const Node& GetAmendNode(std::size_t index) const {
return amend_code[index]; return amend_code[index];
} }
@ -396,8 +396,8 @@ private:
Tegra::Shader::Instruction instr, Tegra::Shader::Instruction instr,
bool is_write); bool is_write);
/// Amends /// Register new amending code and obtain the reference id.
u32 DeclareAmend(Node new_amend); std::size_t DeclareAmend(Node new_amend);
const ProgramCode& program_code; const ProgramCode& program_code;
const u32 main_offset; const u32 main_offset;
@ -413,7 +413,7 @@ private:
std::map<u32, NodeBlock> basic_blocks; std::map<u32, NodeBlock> basic_blocks;
NodeBlock global_code; NodeBlock global_code;
ASTManager program_manager{true, true}; ASTManager program_manager{true, true};
NodeBlock amend_code; std::vector<Node> amend_code;
std::set<u32> used_registers; std::set<u32> used_registers;
std::set<Tegra::Shader::Pred> used_predicates; std::set<Tegra::Shader::Pred> used_predicates;