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shader_ir: Remove RZ and use Register::ZeroIndex instead

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This commit is contained in:
ReinUsesLisp 2018-12-26 01:49:32 -03:00
parent 5af82a8ed4
commit d9118d324a
3 changed files with 16 additions and 12 deletions
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17
src/video_core/shader/decode/memory.cpp
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@ -91,12 +91,14 @@ u32 ShaderIR::DecodeMemory(BasicBlock& bb, u32 pc) {
GetConstBufferIndirect(instr.cbuf36.index, instr.cbuf36.offset + 4, index); GetConstBufferIndirect(instr.cbuf36.index, instr.cbuf36.offset + 4, index);
const Node composite = const Node composite =
Operation(OperationCode::Composite, op_a, op_b, GetRegister(RZ), GetRegister(RZ)); Operation(OperationCode::Composite, op_a, op_b, GetRegister(Register::ZeroIndex),
GetRegister(Register::ZeroIndex));
MetaComponents meta{{0, 1, 2, 3}}; MetaComponents meta{{0, 1, 2, 3}};
bb.push_back(Operation(OperationCode::AssignComposite, meta, composite, bb.push_back(Operation(OperationCode::AssignComposite, meta, composite,
GetRegister(instr.gpr0), GetRegister(instr.gpr0.Value() + 1), GetRegister(instr.gpr0), GetRegister(instr.gpr0.Value() + 1),
GetRegister(RZ), GetRegister(RZ))); GetRegister(Register::ZeroIndex),
GetRegister(Register::ZeroIndex)));
break; break;
} }
default: default:
@ -197,7 +199,8 @@ u32 ShaderIR::DecodeMemory(BasicBlock& bb, u32 pc) {
++dest_elem; ++dest_elem;
} }
std::generate(dest.begin() + dest_elem, dest.end(), [&]() { return GetRegister(RZ); }); std::generate(dest.begin() + dest_elem, dest.end(),
[&]() { return GetRegister(Register::ZeroIndex); });
bb.push_back(Operation(OperationCode::AssignComposite, std::move(meta), texture, dest[0], bb.push_back(Operation(OperationCode::AssignComposite, std::move(meta), texture, dest[0],
dest[1], dest[2], dest[3])); dest[1], dest[2], dest[3]));
@ -255,7 +258,8 @@ u32 ShaderIR::DecodeMemory(BasicBlock& bb, u32 pc) {
++dest_elem; ++dest_elem;
} }
std::generate(dest.begin() + dest_elem, dest.end(), [&]() { return GetRegister(RZ); }); std::generate(dest.begin() + dest_elem, dest.end(),
[&]() { return GetRegister(Register::ZeroIndex); });
bb.push_back(Operation(OperationCode::AssignComposite, std::move(meta_components), texture, bb.push_back(Operation(OperationCode::AssignComposite, std::move(meta_components), texture,
dest[0], dest[1], dest[2], dest[3])); dest[0], dest[1], dest[2], dest[3]));
@ -369,7 +373,7 @@ u32 ShaderIR::DecodeMemory(BasicBlock& bb, u32 pc) {
const MetaComponents meta_composite{{0, 1, 2, 3}}; const MetaComponents meta_composite{{0, 1, 2, 3}};
bb.push_back(Operation(OperationCode::AssignComposite, meta_composite, texture, bb.push_back(Operation(OperationCode::AssignComposite, meta_composite, texture,
GetRegister(instr.gpr0), GetRegister(instr.gpr0.Value() + 1), GetRegister(instr.gpr0), GetRegister(instr.gpr0.Value() + 1),
GetRegister(RZ), GetRegister(RZ))); GetRegister(Register::ZeroIndex), GetRegister(Register::ZeroIndex)));
break; break;
} }
case OpCode::Id::TLDS: { case OpCode::Id::TLDS: {
@ -438,7 +442,8 @@ void ShaderIR::WriteTexsInstructionFloat(BasicBlock& bb, Instruction instr, Node
++meta.count; ++meta.count;
} }
std::generate(dest.begin() + meta.count, dest.end(), [&]() { return GetRegister(RZ); }); std::generate(dest.begin() + meta.count, dest.end(),
[&]() { return GetRegister(Register::ZeroIndex); });
bb.push_back(Operation(OperationCode::AssignComposite, meta, texture, dest[0], dest[1], dest[2], bb.push_back(Operation(OperationCode::AssignComposite, meta, texture, dest[0], dest[1], dest[2],
dest[3])); dest[3]));

9
src/video_core/shader/glsl_decompiler.cpp
View file

@ -22,6 +22,7 @@ using Tegra::Shader::Header;
using Tegra::Shader::IpaInterpMode; using Tegra::Shader::IpaInterpMode;
using Tegra::Shader::IpaMode; using Tegra::Shader::IpaMode;
using Tegra::Shader::IpaSampleMode; using Tegra::Shader::IpaSampleMode;
using Tegra::Shader::Register;
using namespace VideoCommon::Shader; using namespace VideoCommon::Shader;
using Maxwell = Tegra::Engines::Maxwell3D::Regs; using Maxwell = Tegra::Engines::Maxwell3D::Regs;
@ -419,7 +420,7 @@ private:
} else if (const auto gpr = std::get_if<GprNode>(node)) { } else if (const auto gpr = std::get_if<GprNode>(node)) {
const u32 index = gpr->GetIndex(); const u32 index = gpr->GetIndex();
if (index == RZ) { if (index == Register::ZeroIndex) {
return "0"; return "0";
} }
return GetRegister(index); return GetRegister(index);
@ -728,8 +729,8 @@ private:
std::string target; std::string target;
if (const auto gpr = std::get_if<GprNode>(dest)) { if (const auto gpr = std::get_if<GprNode>(dest)) {
if (gpr->GetIndex() == RZ) { if (gpr->GetIndex() == Register::ZeroIndex) {
// Writing to RZ is a no op // Writing to Register::ZeroIndex is a no op
return {}; return {};
} }
target = GetRegister(gpr->GetIndex()); target = GetRegister(gpr->GetIndex());
@ -776,7 +777,7 @@ private:
constexpr u32 composite_size = 4; constexpr u32 composite_size = 4;
for (u32 i = 0; i < composite_size; ++i) { for (u32 i = 0; i < composite_size; ++i) {
const auto gpr = std::get<GprNode>(*operation[i + 1]).GetIndex(); const auto gpr = std::get<GprNode>(*operation[i + 1]).GetIndex();
if (gpr == RZ) { if (gpr == Register::ZeroIndex) {
continue; continue;
} }
code.AddLine(GetRegister(gpr) + " = " + composite + code.AddLine(GetRegister(gpr) + " = " + composite +

2
src/video_core/shader/shader_ir.h
View file

@ -41,8 +41,6 @@ using BasicBlock = std::vector<Node>;
constexpr u32 MAX_PROGRAM_LENGTH = 0x1000; constexpr u32 MAX_PROGRAM_LENGTH = 0x1000;
constexpr u32 RZ = 0xff;
enum class OperationCode { enum class OperationCode {
Assign, /// (float& dest, float src) -> void Assign, /// (float& dest, float src) -> void
AssignComposite, /// (MetaComponents, float4 src, float&[4] dst) -> void AssignComposite, /// (MetaComponents, float4 src, float&[4] dst) -> void