shader: Implement TLD4.PTP

src/shader_recompiler/backend/spirv/emit_context.cpp

@@ -169,6 +169,7 @@ void EmitContext::DefineCommonTypes(const Info& info) {
         AddCapability(spv::Capability::Float64);
         F64.Define(*this, TypeFloat(64), "f64");
     }
+    array_U32x2 = Name(TypeArray(U32[2], Constant(U32[1], 4U)), "array-u32x2");
 }
 
 void EmitContext::DefineCommonConstants() {

src/shader_recompiler/backend/spirv/emit_context.h

@@ -65,6 +65,7 @@ public:
     VectorTypes U32;
     VectorTypes F16;
     VectorTypes F64;
+    Id array_U32x2;
 
     Id true_value{};
     Id false_value{};

src/shader_recompiler/backend/spirv/emit_spirv.h

@@ -95,7 +95,7 @@ void EmitWriteStorage64(EmitContext& ctx, const IR::Value& binding, const IR::Va
                         Id value);
 void EmitWriteStorage128(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset,
                          Id value);
-Id EmitCompositeConstructU32x2(EmitContext& ctx, Id e1, Id e2);
+Id EmitCompositeConstructU32x2(EmitContext& ctx, IR::Inst* inst, Id e1, Id e2);
 Id EmitCompositeConstructU32x3(EmitContext& ctx, Id e1, Id e2, Id e3);
 Id EmitCompositeConstructU32x4(EmitContext& ctx, Id e1, Id e2, Id e3, Id e4);
 Id EmitCompositeExtractU32x2(EmitContext& ctx, Id composite, u32 index);
@@ -104,7 +104,7 @@ Id EmitCompositeExtractU32x4(EmitContext& ctx, Id composite, u32 index);
 Id EmitCompositeInsertU32x2(EmitContext& ctx, Id composite, Id object, u32 index);
 Id EmitCompositeInsertU32x3(EmitContext& ctx, Id composite, Id object, u32 index);
 Id EmitCompositeInsertU32x4(EmitContext& ctx, Id composite, Id object, u32 index);
-Id EmitCompositeConstructF16x2(EmitContext& ctx, Id e1, Id e2);
+Id EmitCompositeConstructF16x2(EmitContext& ctx, IR::Inst* inst, Id e1, Id e2);
 Id EmitCompositeConstructF16x3(EmitContext& ctx, Id e1, Id e2, Id e3);
 Id EmitCompositeConstructF16x4(EmitContext& ctx, Id e1, Id e2, Id e3, Id e4);
 Id EmitCompositeExtractF16x2(EmitContext& ctx, Id composite, u32 index);
@@ -113,7 +113,7 @@ Id EmitCompositeExtractF16x4(EmitContext& ctx, Id composite, u32 index);
 Id EmitCompositeInsertF16x2(EmitContext& ctx, Id composite, Id object, u32 index);
 Id EmitCompositeInsertF16x3(EmitContext& ctx, Id composite, Id object, u32 index);
 Id EmitCompositeInsertF16x4(EmitContext& ctx, Id composite, Id object, u32 index);
-Id EmitCompositeConstructF32x2(EmitContext& ctx, Id e1, Id e2);
+Id EmitCompositeConstructF32x2(EmitContext& ctx, IR::Inst* inst, Id e1, Id e2);
 Id EmitCompositeConstructF32x3(EmitContext& ctx, Id e1, Id e2, Id e3);
 Id EmitCompositeConstructF32x4(EmitContext& ctx, Id e1, Id e2, Id e3, Id e4);
 Id EmitCompositeExtractF32x2(EmitContext& ctx, Id composite, u32 index);
@@ -122,6 +122,7 @@ Id EmitCompositeExtractF32x4(EmitContext& ctx, Id composite, u32 index);
 Id EmitCompositeInsertF32x2(EmitContext& ctx, Id composite, Id object, u32 index);
 Id EmitCompositeInsertF32x3(EmitContext& ctx, Id composite, Id object, u32 index);
 Id EmitCompositeInsertF32x4(EmitContext& ctx, Id composite, Id object, u32 index);
+Id EmitCompositeConstructArrayU32x2(EmitContext& ctx, IR::Inst* inst, Id e1, Id e2, Id e3, Id e4);
 void EmitCompositeConstructF64x2(EmitContext& ctx);
 void EmitCompositeConstructF64x3(EmitContext& ctx);
 void EmitCompositeConstructF64x4(EmitContext& ctx);

src/shader_recompiler/backend/spirv/emit_spirv_composite.cpp

@@ -3,10 +3,15 @@
 // Refer to the license.txt file included.
 
 #include "shader_recompiler/backend/spirv/emit_spirv.h"
+#include "shader_recompiler/frontend/ir/modifiers.h"
 
 namespace Shader::Backend::SPIRV {
 
-Id EmitCompositeConstructU32x2(EmitContext& ctx, Id e1, Id e2) {
+Id EmitCompositeConstructU32x2(EmitContext& ctx, IR::Inst* inst, Id e1, Id e2) {
+    const auto info{inst->Flags<IR::CompositeDecoration>()};
+    if (info.is_constant) {
+        return ctx.ConstantComposite(ctx.U32[2], e1, e2);
+    }
     return ctx.OpCompositeConstruct(ctx.U32[2], e1, e2);
 }
 
@@ -42,7 +47,12 @@ Id EmitCompositeInsertU32x4(EmitContext& ctx, Id composite, Id object, u32 index
     return ctx.OpCompositeInsert(ctx.U32[4], object, composite, index);
 }
 
-Id EmitCompositeConstructF16x2(EmitContext& ctx, Id e1, Id e2) {
+Id EmitCompositeConstructF16x2(EmitContext& ctx, IR::Inst* inst, Id e1, Id e2) {
+
+    const auto info{inst->Flags<IR::CompositeDecoration>()};
+    if (info.is_constant) {
+        return ctx.ConstantComposite(ctx.F16[2], e1, e2);
+    }
     return ctx.OpCompositeConstruct(ctx.F16[2], e1, e2);
 }
 
@@ -78,7 +88,11 @@ Id EmitCompositeInsertF16x4(EmitContext& ctx, Id composite, Id object, u32 index
     return ctx.OpCompositeInsert(ctx.F16[4], object, composite, index);
 }
 
-Id EmitCompositeConstructF32x2(EmitContext& ctx, Id e1, Id e2) {
+Id EmitCompositeConstructF32x2(EmitContext& ctx, IR::Inst* inst, Id e1, Id e2) {
+    const auto info{inst->Flags<IR::CompositeDecoration>()};
+    if (info.is_constant) {
+        return ctx.ConstantComposite(ctx.F32[2], e1, e2);
+    }
     return ctx.OpCompositeConstruct(ctx.F32[2], e1, e2);
 }
 
@@ -150,4 +164,15 @@ Id EmitCompositeInsertF64x4(EmitContext& ctx, Id composite, Id object, u32 index
     return ctx.OpCompositeInsert(ctx.F64[4], object, composite, index);
 }
 
+Id EmitCompositeConstructArrayU32x2(EmitContext& ctx, IR::Inst* inst, Id e1, Id e2, Id e3, Id e4) {
+    const auto info{inst->Flags<IR::CompositeDecoration>()};
+    if (info.is_constant) {
+        return ctx.ConstantComposite(ctx.array_U32x2, e1, e2, e3, e4);
+    }
+    if (ctx.profile.support_variadic_ptp) {
+        return OpCompositeConstruct(ctx.array_U32x2, e1, e2, e3, e4);
+    }
+    return {};
+}
+
 } // namespace Shader::Backend::SPIRV

src/shader_recompiler/backend/spirv/emit_spirv_image.cpp

@@ -30,10 +30,13 @@ public:
         }
     }
 
-    explicit ImageOperands([[maybe_unused]] EmitContext& ctx, Id offset) {
+    explicit ImageOperands([[maybe_unused]] EmitContext& ctx, Id offset, Id offset2) {
         if (Sirit::ValidId(offset)) {
             Add(spv::ImageOperandsMask::Offset, offset);
         }
+        if (Sirit::ValidId(offset2)) {
+            Add(spv::ImageOperandsMask::ConstOffsets, offset2);
+        }
     }
 
     void Add(spv::ImageOperandsMask new_mask, Id value) {
@@ -177,7 +180,7 @@ Id EmitImageSampleDrefExplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Va
 Id EmitImageGather(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id coords, Id offset,
                    [[maybe_unused]] Id offset2) {
     const auto info{inst->Flags<IR::TextureInstInfo>()};
-    const ImageOperands operands(ctx, offset);
+    const ImageOperands operands(ctx, offset, offset2);
     return Emit(&EmitContext::OpImageSparseGather, &EmitContext::OpImageGather, ctx, inst,
                 ctx.F32[4], Texture(ctx, index), coords,
                 ctx.Constant(ctx.U32[1], info.gather_component.Value()), operands.Mask(),
@@ -187,7 +190,7 @@ Id EmitImageGather(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id
 Id EmitImageGatherDref(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id coords,
                        Id offset, [[maybe_unused]] Id offset2, Id dref) {
     const auto info{inst->Flags<IR::TextureInstInfo>()};
-    const ImageOperands operands(ctx, offset);
+    const ImageOperands operands(ctx, offset, offset2);
     return Emit(&EmitContext::OpImageSparseDrefGather, &EmitContext::OpImageDrefGather, ctx, inst,
                 ctx.F32[4], Texture(ctx, index), coords, dref, operands.Mask(), operands.Span());
 }

src/shader_recompiler/frontend/ir/ir_emitter.cpp

@@ -398,15 +398,16 @@ Value IREmitter::CompositeConstruct(const Value& e1, const Value& e2) {
     if (e1.Type() != e2.Type()) {
         throw InvalidArgument("Mismatching types {} and {}", e1.Type(), e2.Type());
     }
+    CompositeDecoration decor{};
     switch (e1.Type()) {
     case Type::U32:
-        return Inst(Opcode::CompositeConstructU32x2, e1, e2);
+        return Inst(Opcode::CompositeConstructU32x2, Flags{decor}, e1, e2);
     case Type::F16:
-        return Inst(Opcode::CompositeConstructF16x2, e1, e2);
+        return Inst(Opcode::CompositeConstructF16x2, Flags{decor}, e1, e2);
     case Type::F32:
-        return Inst(Opcode::CompositeConstructF32x2, e1, e2);
+        return Inst(Opcode::CompositeConstructF32x2, Flags{decor}, e1, e2);
     case Type::F64:
-        return Inst(Opcode::CompositeConstructF64x2, e1, e2);
+        return Inst(Opcode::CompositeConstructF64x2, Flags{decor}, e1, e2);
     default:
         ThrowInvalidType(e1.Type());
     }
@@ -436,6 +437,7 @@ Value IREmitter::CompositeConstruct(const Value& e1, const Value& e2, const Valu
         throw InvalidArgument("Mismatching types {}, {}, {}, and {}", e1.Type(), e2.Type(),
                               e3.Type(), e4.Type());
     }
+    CompositeDecoration decor{};
     switch (e1.Type()) {
     case Type::U32:
         return Inst(Opcode::CompositeConstructU32x4, e1, e2, e3, e4);
@@ -445,6 +447,8 @@ Value IREmitter::CompositeConstruct(const Value& e1, const Value& e2, const Valu
         return Inst(Opcode::CompositeConstructF32x4, e1, e2, e3, e4);
     case Type::F64:
         return Inst(Opcode::CompositeConstructF64x4, e1, e2, e3, e4);
+    case Type::U32x2:
+        return Inst(Opcode::CompositeConstructArrayU32x2, Flags{decor}, e1, e2, e3, e4);
     default:
         ThrowInvalidType(e1.Type());
     }

src/shader_recompiler/frontend/ir/microinstruction.h

@@ -99,6 +99,12 @@ public:
         return ret;
     }
 
+    template <typename FlagsType>
+    requires(sizeof(FlagsType) <= sizeof(u32) && std::is_trivially_copyable_v<FlagsType>)
+        [[nodiscard]] void SetFlags(FlagsType& new_val) noexcept {
+        std::memcpy(&flags, &new_val, sizeof(new_val));
+    }
+
     /// Intrusively store the host definition of this instruction.
     template <typename DefinitionType>
     void SetDefinition(DefinitionType def) {

src/shader_recompiler/frontend/ir/modifiers.h

@@ -32,6 +32,11 @@ struct FpControl {
 };
 static_assert(sizeof(FpControl) <= sizeof(u32));
 
+struct CompositeDecoration {
+    bool is_constant{false};
+};
+static_assert(sizeof(CompositeDecoration) <= sizeof(u32));
+
 union TextureInstInfo {
     u32 raw;
     BitField<0, 8, TextureType> type;

src/shader_recompiler/frontend/ir/opcodes.inc

@@ -126,6 +126,7 @@ OPCODE(CompositeExtractF64x4,                               F64,            F64x
 OPCODE(CompositeInsertF64x2,                                F64x2,          F64x2,          F64,            U32,                                            )
 OPCODE(CompositeInsertF64x3,                                F64x3,          F64x3,          F64,            U32,                                            )
 OPCODE(CompositeInsertF64x4,                                F64x4,          F64x4,          F64,            U32,                                            )
+OPCODE(CompositeConstructArrayU32x2, Opaque, U32x2, U32x2, U32x2, U32x2, )
 
 // Select operations
 OPCODE(SelectU1,                                            U1,             U1,             U1,             U1,                                             )

src/shader_recompiler/frontend/ir/value.cpp

@@ -44,6 +44,20 @@ bool Value::IsEmpty() const noexcept {
     return type == Type::Void;
 }
 
+bool Value::IsConstantContainer() const {
+    if (IsImmediate()) {
+        return true;
+    }
+    ValidateAccess(Type::Opaque);
+    auto num_args = inst->NumArgs();
+    for (size_t i = 0; i < num_args; i++) {
+        if (!inst->Arg(i).IsConstantContainer()) {
+            return false;
+        }
+    }
+    return true;
+}
+
 bool Value::IsImmediate() const noexcept {
     if (IsIdentity()) {
         return inst->Arg(0).IsImmediate();

src/shader_recompiler/frontend/ir/value.h

@@ -38,6 +38,7 @@ public:
     [[nodiscard]] bool IsImmediate() const noexcept;
     [[nodiscard]] bool IsLabel() const noexcept;
     [[nodiscard]] IR::Type Type() const noexcept;
+    [[nodiscard]] bool IsConstantContainer() const;
 
     [[nodiscard]] IR::Inst* Inst() const;
     [[nodiscard]] IR::Block* Label() const;

src/shader_recompiler/frontend/maxwell/translate/impl/texture_fetch.cpp

@@ -101,16 +101,18 @@ IR::Value MakeOffset(TranslatorVisitor& v, IR::Reg& reg, TextureType type) {
     switch (type) {
     case TextureType::_1D:
     case TextureType::ARRAY_1D:
-        return v.ir.BitFieldExtract(value, v.ir.Imm32(0), v.ir.Imm32(4));
+        return v.ir.BitFieldExtract(value, v.ir.Imm32(0), v.ir.Imm32(4), true);
     case TextureType::_2D:
     case TextureType::ARRAY_2D:
-        return v.ir.CompositeConstruct(v.ir.BitFieldExtract(value, v.ir.Imm32(0), v.ir.Imm32(4)),
+        return v.ir.CompositeConstruct(
-                                       v.ir.BitFieldExtract(value, v.ir.Imm32(4), v.ir.Imm32(4)));
+            v.ir.BitFieldExtract(value, v.ir.Imm32(0), v.ir.Imm32(4), true),
+            v.ir.BitFieldExtract(value, v.ir.Imm32(4), v.ir.Imm32(4), true));
     case TextureType::_3D:
     case TextureType::ARRAY_3D:
-        return v.ir.CompositeConstruct(v.ir.BitFieldExtract(value, v.ir.Imm32(0), v.ir.Imm32(4)),
+        return v.ir.CompositeConstruct(
-                                       v.ir.BitFieldExtract(value, v.ir.Imm32(4), v.ir.Imm32(4)),
+            v.ir.BitFieldExtract(value, v.ir.Imm32(0), v.ir.Imm32(4), true),
-                                       v.ir.BitFieldExtract(value, v.ir.Imm32(8), v.ir.Imm32(4)));
+            v.ir.BitFieldExtract(value, v.ir.Imm32(4), v.ir.Imm32(4), true),
+            v.ir.BitFieldExtract(value, v.ir.Imm32(8), v.ir.Imm32(4), true));
     case TextureType::CUBE:
     case TextureType::ARRAY_CUBE:
         throw NotImplementedException("Illegal offset on CUBE sample");

src/shader_recompiler/frontend/maxwell/translate/impl/texture_gather.cpp

@@ -106,17 +106,17 @@ IR::Value MakeOffset(TranslatorVisitor& v, IR::Reg& reg, TextureType type) {
     throw NotImplementedException("Invalid texture type {}", type);
 }
 
-std::pair<IR::Value, IR::Value> MakeOffsetPTP(TranslatorVisitor& v, IR::Reg& reg) {
+IR::Value MakeOffsetPTP(TranslatorVisitor& v, IR::Reg& reg) {
     const IR::U32 value1{v.X(reg++)};
     const IR::U32 value2{v.X(reg++)};
-    const auto getVector = ([&v](const IR::U32& value) {
+    const IR::U32 bitsize = v.ir.Imm32(6);
+    const auto getVector = ([&v, &bitsize](const IR::U32& value, u32 base) {
         return v.ir.CompositeConstruct(
-            v.ir.BitFieldExtract(value, v.ir.Imm32(0), v.ir.Imm32(6), true),
+            v.ir.BitFieldExtract(value, v.ir.Imm32(base + 0), bitsize, true),
-            v.ir.BitFieldExtract(value, v.ir.Imm32(8), v.ir.Imm32(6), true),
+            v.ir.BitFieldExtract(value, v.ir.Imm32(base + 8), bitsize, true));
-            v.ir.BitFieldExtract(value, v.ir.Imm32(16), v.ir.Imm32(6), true),
-            v.ir.BitFieldExtract(value, v.ir.Imm32(24), v.ir.Imm32(6), true));
     });
-    return {getVector(value1), getVector(value2)};
+    return v.ir.CompositeConstruct(getVector(value1, 0), getVector(value1, 16),
+                                   getVector(value2, 0), getVector(value2, 16));
 }
 
 void Impl(TranslatorVisitor& v, u64 insn, ComponentType component_type, OffsetType offset_type,
@@ -155,7 +155,7 @@ void Impl(TranslatorVisitor& v, u64 insn, ComponentType component_type, OffsetTy
         break;
     }
     case OffsetType::PTP: {
-        std::tie(offset, offset2) = MakeOffsetPTP(v, meta_reg);
+        offset2 = MakeOffsetPTP(v, meta_reg);
         break;
     }
     default:

src/shader_recompiler/ir_opt/constant_propagation_pass.cpp

@@ -355,6 +355,17 @@ void FoldBranchConditional(IR::Inst& inst) {
     }
 }
 
+void FoldConstantComposite(IR::Inst& inst, size_t amount = 2) {
+    for (size_t i = 0; i < amount; i++) {
+        if (!inst.Arg(i).IsConstantContainer()) {
+            return;
+        }
+    }
+    auto info{inst.Flags<IR::CompositeDecoration>()};
+    info.is_constant = true;
+    inst.SetFlags(info);
+}
+
 void ConstantPropagation(IR::Block& block, IR::Inst& inst) {
     switch (inst.Opcode()) {
     case IR::Opcode::GetRegister:
@@ -380,6 +391,13 @@ void ConstantPropagation(IR::Block& block, IR::Inst& inst) {
     case IR::Opcode::SelectF32:
     case IR::Opcode::SelectF64:
         return FoldSelect(inst);
+    case IR::Opcode::CompositeConstructU32x2:
+    case IR::Opcode::CompositeConstructF16x2:
+    case IR::Opcode::CompositeConstructF32x2:
+    case IR::Opcode::CompositeConstructF64x2:
+        return FoldConstantComposite(inst, 2);
+    case IR::Opcode::CompositeConstructArrayU32x2:
+        return FoldConstantComposite(inst, 4);
     case IR::Opcode::FPMul32:
         return FoldFPMul32(inst);
     case IR::Opcode::LogicalAnd:

src/shader_recompiler/profile.h

@@ -30,6 +30,7 @@ struct Profile {
     bool support_fp32_signed_zero_nan_preserve{};
     bool support_fp64_signed_zero_nan_preserve{};
     bool support_vote{};
+    bool support_variadic_ptp{};
     bool warp_size_potentially_larger_than_guest{};
 
     // FClamp is broken and OpFMax + OpFMin should be used instead