shader: Implement I2F

src/shader_recompiler/CMakeLists.txt

@@ -84,6 +84,7 @@ add_library(shader_recompiler STATIC
     frontend/maxwell/translate/impl/integer_add_three_input.cpp
     frontend/maxwell/translate/impl/integer_compare.cpp
     frontend/maxwell/translate/impl/integer_compare_and_set.cpp
+    frontend/maxwell/translate/impl/integer_floating_point_conversion.cpp
     frontend/maxwell/translate/impl/integer_funnel_shift.cpp
     frontend/maxwell/translate/impl/integer_minimum_maximum.cpp
     frontend/maxwell/translate/impl/integer_popcount.cpp

src/shader_recompiler/backend/spirv/emit_context.cpp

@@ -89,6 +89,8 @@ Id EmitContext::Def(const IR::Value& value) {
         return value.U1() ? true_value : false_value;
     case IR::Type::U32:
         return Constant(U32[1], value.U32());
+    case IR::Type::U64:
+        return Constant(U64, value.U64());
     case IR::Type::F32:
         return Constant(F32[1], value.F32());
     case IR::Type::F64:

src/shader_recompiler/backend/spirv/emit_spirv.h

@@ -243,6 +243,7 @@ Id EmitIMul32(EmitContext& ctx, Id a, Id b);
 Id EmitINeg32(EmitContext& ctx, Id value);
 Id EmitINeg64(EmitContext& ctx, Id value);
 Id EmitIAbs32(EmitContext& ctx, Id value);
+Id EmitIAbs64(EmitContext& ctx, Id value);
 Id EmitShiftLeftLogical32(EmitContext& ctx, Id base, Id shift);
 Id EmitShiftLeftLogical64(EmitContext& ctx, Id base, Id shift);
 Id EmitShiftRightLogical32(EmitContext& ctx, Id base, Id shift);
@@ -302,16 +303,28 @@ Id EmitConvertF16F32(EmitContext& ctx, Id value);
 Id EmitConvertF32F16(EmitContext& ctx, Id value);
 Id EmitConvertF32F64(EmitContext& ctx, Id value);
 Id EmitConvertF64F32(EmitContext& ctx, Id value);
+Id EmitConvertF16S8(EmitContext& ctx, Id value);
+Id EmitConvertF16S16(EmitContext& ctx, Id value);
 Id EmitConvertF16S32(EmitContext& ctx, Id value);
 Id EmitConvertF16S64(EmitContext& ctx, Id value);
+Id EmitConvertF16U8(EmitContext& ctx, Id value);
+Id EmitConvertF16U16(EmitContext& ctx, Id value);
 Id EmitConvertF16U32(EmitContext& ctx, Id value);
 Id EmitConvertF16U64(EmitContext& ctx, Id value);
+Id EmitConvertF32S8(EmitContext& ctx, Id value);
+Id EmitConvertF32S16(EmitContext& ctx, Id value);
 Id EmitConvertF32S32(EmitContext& ctx, Id value);
 Id EmitConvertF32S64(EmitContext& ctx, Id value);
+Id EmitConvertF32U8(EmitContext& ctx, Id value);
+Id EmitConvertF32U16(EmitContext& ctx, Id value);
 Id EmitConvertF32U32(EmitContext& ctx, Id value);
 Id EmitConvertF32U64(EmitContext& ctx, Id value);
+Id EmitConvertF64S8(EmitContext& ctx, Id value);
+Id EmitConvertF64S16(EmitContext& ctx, Id value);
 Id EmitConvertF64S32(EmitContext& ctx, Id value);
 Id EmitConvertF64S64(EmitContext& ctx, Id value);
+Id EmitConvertF64U8(EmitContext& ctx, Id value);
+Id EmitConvertF64U16(EmitContext& ctx, Id value);
 Id EmitConvertF64U32(EmitContext& ctx, Id value);
 Id EmitConvertF64U64(EmitContext& ctx, Id value);
 Id EmitBindlessImageSampleImplicitLod(EmitContext&);

src/shader_recompiler/backend/spirv/emit_spirv_convert.cpp

@@ -102,6 +102,14 @@ Id EmitConvertF64F32(EmitContext& ctx, Id value) {
     return ctx.OpFConvert(ctx.F64[1], value);
 }
 
+Id EmitConvertF16S8(EmitContext& ctx, Id value) {
+    return ctx.OpConvertSToF(ctx.F16[1], value);
+}
+
+Id EmitConvertF16S16(EmitContext& ctx, Id value) {
+    return ctx.OpConvertSToF(ctx.F16[1], value);
+}
+
 Id EmitConvertF16S32(EmitContext& ctx, Id value) {
     return ctx.OpConvertSToF(ctx.F16[1], value);
 }
@@ -110,6 +118,14 @@ Id EmitConvertF16S64(EmitContext& ctx, Id value) {
     return ctx.OpConvertSToF(ctx.F16[1], value);
 }
 
+Id EmitConvertF16U8(EmitContext& ctx, Id value) {
+    return ctx.OpConvertUToF(ctx.F16[1], value);
+}
+
+Id EmitConvertF16U16(EmitContext& ctx, Id value) {
+    return ctx.OpConvertUToF(ctx.F16[1], value);
+}
+
 Id EmitConvertF16U32(EmitContext& ctx, Id value) {
     return ctx.OpConvertUToF(ctx.F16[1], value);
 }
@@ -118,6 +134,14 @@ Id EmitConvertF16U64(EmitContext& ctx, Id value) {
     return ctx.OpConvertUToF(ctx.F16[1], value);
 }
 
+Id EmitConvertF32S8(EmitContext& ctx, Id value) {
+    return ctx.OpConvertSToF(ctx.F32[1], ctx.OpUConvert(ctx.U8, value));
+}
+
+Id EmitConvertF32S16(EmitContext& ctx, Id value) {
+    return ctx.OpConvertSToF(ctx.F32[1], ctx.OpUConvert(ctx.U16, value));
+}
+
 Id EmitConvertF32S32(EmitContext& ctx, Id value) {
     return ctx.OpConvertSToF(ctx.F32[1], value);
 }
@@ -126,6 +150,14 @@ Id EmitConvertF32S64(EmitContext& ctx, Id value) {
     return ctx.OpConvertSToF(ctx.F32[1], value);
 }
 
+Id EmitConvertF32U8(EmitContext& ctx, Id value) {
+    return ctx.OpConvertUToF(ctx.F32[1], ctx.OpUConvert(ctx.U8, value));
+}
+
+Id EmitConvertF32U16(EmitContext& ctx, Id value) {
+    return ctx.OpConvertUToF(ctx.F32[1], ctx.OpUConvert(ctx.U16, value));
+}
+
 Id EmitConvertF32U32(EmitContext& ctx, Id value) {
     return ctx.OpConvertUToF(ctx.F32[1], value);
 }
@@ -134,6 +166,14 @@ Id EmitConvertF32U64(EmitContext& ctx, Id value) {
     return ctx.OpConvertUToF(ctx.F32[1], value);
 }
 
+Id EmitConvertF64S8(EmitContext& ctx, Id value) {
+    return ctx.OpConvertSToF(ctx.F64[1], ctx.OpUConvert(ctx.U8, value));
+}
+
+Id EmitConvertF64S16(EmitContext& ctx, Id value) {
+    return ctx.OpConvertSToF(ctx.F64[1], ctx.OpUConvert(ctx.U16, value));
+}
+
 Id EmitConvertF64S32(EmitContext& ctx, Id value) {
     return ctx.OpConvertSToF(ctx.F64[1], value);
 }
@@ -142,6 +182,14 @@ Id EmitConvertF64S64(EmitContext& ctx, Id value) {
     return ctx.OpConvertSToF(ctx.F64[1], value);
 }
 
+Id EmitConvertF64U8(EmitContext& ctx, Id value) {
+    return ctx.OpConvertUToF(ctx.F64[1], ctx.OpUConvert(ctx.U8, value));
+}
+
+Id EmitConvertF64U16(EmitContext& ctx, Id value) {
+    return ctx.OpConvertUToF(ctx.F64[1], ctx.OpUConvert(ctx.U16, value));
+}
+
 Id EmitConvertF64U32(EmitContext& ctx, Id value) {
     return ctx.OpConvertUToF(ctx.F64[1], value);
 }

src/shader_recompiler/backend/spirv/emit_spirv_integer.cpp

@@ -70,6 +70,10 @@ Id EmitIAbs32(EmitContext& ctx, Id value) {
     return ctx.OpSAbs(ctx.U32[1], value);
 }
 
+Id EmitIAbs64(EmitContext& ctx, Id value) {
+    return ctx.OpSAbs(ctx.U64, value);
+}
+
 Id EmitShiftLeftLogical32(EmitContext& ctx, Id base, Id shift) {
     return ctx.OpShiftLeftLogical(ctx.U32[1], base, shift);
 }

src/shader_recompiler/frontend/ir/ir_emitter.cpp

@@ -53,6 +53,10 @@ U64 IREmitter::Imm64(u64 value) const {
     return U64{Value{value}};
 }
 
+U64 IREmitter::Imm64(s64 value) const {
+    return U64{Value{static_cast<u64>(value)}};
+}
+
 F64 IREmitter::Imm64(f64 value) const {
     return F64{Value{value}};
 }
@@ -363,7 +367,7 @@ U1 IREmitter::GetSparseFromOp(const Value& op) {
 }
 
 F16F32F64 IREmitter::FPAdd(const F16F32F64& a, const F16F32F64& b, FpControl control) {
-    if (a.Type() != a.Type()) {
+    if (a.Type() != b.Type()) {
         throw InvalidArgument("Mismatching types {} and {}", a.Type(), b.Type());
     }
     switch (a.Type()) {
@@ -974,8 +978,15 @@ U32U64 IREmitter::INeg(const U32U64& value) {
     }
 }
 
-U32 IREmitter::IAbs(const U32& value) {
-    return Inst<U32>(Opcode::IAbs32, value);
+U32U64 IREmitter::IAbs(const U32U64& value) {
+    switch (value.Type()) {
+    case Type::U32:
+        return Inst<U32>(Opcode::IAbs32, value);
+    case Type::U64:
+        return Inst<U64>(Opcode::IAbs64, value);
+    default:
+        ThrowInvalidType(value.Type());
+    }
 }
 
 U32U64 IREmitter::ShiftLeftLogical(const U32U64& base, const U32& shift) {
@@ -1074,8 +1085,25 @@ U1 IREmitter::ILessThan(const U32& lhs, const U32& rhs, bool is_signed) {
     return Inst<U1>(is_signed ? Opcode::SLessThan : Opcode::ULessThan, lhs, rhs);
 }
 
-U1 IREmitter::IEqual(const U32& lhs, const U32& rhs) {
-    return Inst<U1>(Opcode::IEqual, lhs, rhs);
+U1 IREmitter::IEqual(const U32U64& lhs, const U32U64& rhs) {
+    if (lhs.Type() != rhs.Type()) {
+        throw InvalidArgument("Mismatching types {} and {}", lhs.Type(), rhs.Type());
+    }
+    switch (lhs.Type()) {
+    case Type::U32:
+        return Inst<U1>(Opcode::IEqual, lhs, rhs);
+    case Type::U64: {
+        // Manually compare the unpacked values
+        const Value lhs_vector{UnpackUint2x32(lhs)};
+        const Value rhs_vector{UnpackUint2x32(rhs)};
+        return LogicalAnd(IEqual(IR::U32{CompositeExtract(lhs_vector, 0)},
+                                 IR::U32{CompositeExtract(rhs_vector, 0)}),
+                          IEqual(IR::U32{CompositeExtract(lhs_vector, 1)},
+                                 IR::U32{CompositeExtract(rhs_vector, 1)}));
+    }
+    default:
+        ThrowInvalidType(lhs.Type());
+    }
 }
 
 U1 IREmitter::ILessThanEqual(const U32& lhs, const U32& rhs, bool is_signed) {
@@ -1198,79 +1226,96 @@ U32U64 IREmitter::ConvertFToI(size_t bitsize, bool is_signed, const F16F32F64& v
     }
 }
 
-F16F32F64 IREmitter::ConvertSToF(size_t bitsize, const U32U64& value) {
-    switch (bitsize) {
+F16F32F64 IREmitter::ConvertSToF(size_t dest_bitsize, size_t src_bitsize, const Value& value) {
+    switch (dest_bitsize) {
     case 16:
-        switch (value.Type()) {
-        case Type::U32:
+        switch (src_bitsize) {
+        case 8:
+            return Inst<F16>(Opcode::ConvertF16S8, value);
+        case 16:
+            return Inst<F16>(Opcode::ConvertF16S16, value);
+        case 32:
             return Inst<F16>(Opcode::ConvertF16S32, value);
-        case Type::U64:
+        case 64:
             return Inst<F16>(Opcode::ConvertF16S64, value);
-        default:
-            ThrowInvalidType(value.Type());
         }
+        break;
     case 32:
-        switch (value.Type()) {
-        case Type::U32:
+        switch (src_bitsize) {
+        case 8:
+            return Inst<F32>(Opcode::ConvertF32S8, value);
+        case 16:
+            return Inst<F32>(Opcode::ConvertF32S16, value);
+        case 32:
             return Inst<F32>(Opcode::ConvertF32S32, value);
-        case Type::U64:
+        case 64:
             return Inst<F32>(Opcode::ConvertF32S64, value);
-        default:
-            ThrowInvalidType(value.Type());
         }
+        break;
     case 64:
-        switch (value.Type()) {
-        case Type::U32:
-            return Inst<F16>(Opcode::ConvertF64S32, value);
-        case Type::U64:
-            return Inst<F16>(Opcode::ConvertF64S64, value);
-        default:
-            ThrowInvalidType(value.Type());
+        switch (src_bitsize) {
+        case 8:
+            return Inst<F64>(Opcode::ConvertF64S8, value);
+        case 16:
+            return Inst<F64>(Opcode::ConvertF64S16, value);
+        case 32:
+            return Inst<F64>(Opcode::ConvertF64S32, value);
+        case 64:
+            return Inst<F64>(Opcode::ConvertF64S64, value);
         }
-    default:
-        throw InvalidArgument("Invalid destination bitsize {}", bitsize);
+        break;
     }
+    throw InvalidArgument("Invalid bit size combination dst={} src={}", dest_bitsize, src_bitsize);
 }
 
-F16F32F64 IREmitter::ConvertUToF(size_t bitsize, const U32U64& value) {
-    switch (bitsize) {
+F16F32F64 IREmitter::ConvertUToF(size_t dest_bitsize, size_t src_bitsize, const Value& value) {
+    switch (dest_bitsize) {
     case 16:
-        switch (value.Type()) {
-        case Type::U32:
+        switch (src_bitsize) {
+        case 8:
+            return Inst<F16>(Opcode::ConvertF16U8, value);
+        case 16:
+            return Inst<F16>(Opcode::ConvertF16U16, value);
+        case 32:
             return Inst<F16>(Opcode::ConvertF16U32, value);
-        case Type::U64:
+        case 64:
             return Inst<F16>(Opcode::ConvertF16U64, value);
-        default:
-            ThrowInvalidType(value.Type());
         }
+        break;
     case 32:
-        switch (value.Type()) {
-        case Type::U32:
+        switch (src_bitsize) {
+        case 8:
+            return Inst<F32>(Opcode::ConvertF32U8, value);
+        case 16:
+            return Inst<F32>(Opcode::ConvertF32U16, value);
+        case 32:
             return Inst<F32>(Opcode::ConvertF32U32, value);
-        case Type::U64:
+        case 64:
             return Inst<F32>(Opcode::ConvertF32U64, value);
-        default:
-            ThrowInvalidType(value.Type());
         }
+        break;
     case 64:
-        switch (value.Type()) {
-        case Type::U32:
-            return Inst<F16>(Opcode::ConvertF64U32, value);
-        case Type::U64:
-            return Inst<F16>(Opcode::ConvertF64U64, value);
-        default:
-            ThrowInvalidType(value.Type());
+        switch (src_bitsize) {
+        case 8:
+            return Inst<F64>(Opcode::ConvertF64U8, value);
+        case 16:
+            return Inst<F64>(Opcode::ConvertF64U16, value);
+        case 32:
+            return Inst<F64>(Opcode::ConvertF64U32, value);
+        case 64:
+            return Inst<F64>(Opcode::ConvertF64U64, value);
         }
-    default:
-        throw InvalidArgument("Invalid destination bitsize {}", bitsize);
+        break;
     }
+    throw InvalidArgument("Invalid bit size combination dst={} src={}", dest_bitsize, src_bitsize);
 }
 
-F16F32F64 IREmitter::ConvertIToF(size_t bitsize, bool is_signed, const U32U64& value) {
+F16F32F64 IREmitter::ConvertIToF(size_t dest_bitsize, size_t src_bitsize, bool is_signed,
+                                 const Value& value) {
     if (is_signed) {
-        return ConvertSToF(bitsize, value);
+        return ConvertSToF(dest_bitsize, src_bitsize, value);
     } else {
-        return ConvertUToF(bitsize, value);
+        return ConvertUToF(dest_bitsize, src_bitsize, value);
     }
 }
 

src/shader_recompiler/frontend/ir/ir_emitter.h

@@ -29,6 +29,7 @@ public:
     [[nodiscard]] U32 Imm32(s32 value) const;
     [[nodiscard]] F32 Imm32(f32 value) const;
     [[nodiscard]] U64 Imm64(u64 value) const;
+    [[nodiscard]] U64 Imm64(s64 value) const;
     [[nodiscard]] F64 Imm64(f64 value) const;
 
     void Branch(Block* label);
@@ -170,7 +171,7 @@ public:
     [[nodiscard]] U32U64 ISub(const U32U64& a, const U32U64& b);
     [[nodiscard]] U32 IMul(const U32& a, const U32& b);
     [[nodiscard]] U32U64 INeg(const U32U64& value);
-    [[nodiscard]] U32 IAbs(const U32& value);
+    [[nodiscard]] U32U64 IAbs(const U32U64& value);
     [[nodiscard]] U32U64 ShiftLeftLogical(const U32U64& base, const U32& shift);
     [[nodiscard]] U32U64 ShiftRightLogical(const U32U64& base, const U32& shift);
     [[nodiscard]] U32U64 ShiftRightArithmetic(const U32U64& base, const U32& shift);
@@ -193,7 +194,7 @@ public:
     [[nodiscard]] U32 UMax(const U32& a, const U32& b);
 
     [[nodiscard]] U1 ILessThan(const U32& lhs, const U32& rhs, bool is_signed);
-    [[nodiscard]] U1 IEqual(const U32& lhs, const U32& rhs);
+    [[nodiscard]] U1 IEqual(const U32U64& lhs, const U32U64& rhs);
     [[nodiscard]] U1 ILessThanEqual(const U32& lhs, const U32& rhs, bool is_signed);
     [[nodiscard]] U1 IGreaterThan(const U32& lhs, const U32& rhs, bool is_signed);
     [[nodiscard]] U1 INotEqual(const U32& lhs, const U32& rhs);
@@ -207,9 +208,12 @@ public:
     [[nodiscard]] U32U64 ConvertFToS(size_t bitsize, const F16F32F64& value);
     [[nodiscard]] U32U64 ConvertFToU(size_t bitsize, const F16F32F64& value);
     [[nodiscard]] U32U64 ConvertFToI(size_t bitsize, bool is_signed, const F16F32F64& value);
-    [[nodiscard]] F16F32F64 ConvertSToF(size_t bitsize, const U32U64& value);
-    [[nodiscard]] F16F32F64 ConvertUToF(size_t bitsize, const U32U64& value);
-    [[nodiscard]] F16F32F64 ConvertIToF(size_t bitsize, bool is_signed, const U32U64& value);
+    [[nodiscard]] F16F32F64 ConvertSToF(size_t dest_bitsize, size_t src_bitsize,
+                                        const Value& value);
+    [[nodiscard]] F16F32F64 ConvertUToF(size_t dest_bitsize, size_t src_bitsize,
+                                        const Value& value);
+    [[nodiscard]] F16F32F64 ConvertIToF(size_t dest_bitsize, size_t src_bitsize, bool is_signed,
+                                        const Value& value);
 
     [[nodiscard]] U32U64 UConvert(size_t result_bitsize, const U32U64& value);
     [[nodiscard]] F16F32F64 FPConvert(size_t result_bitsize, const F16F32F64& value);

src/shader_recompiler/frontend/ir/opcodes.inc

@@ -247,6 +247,7 @@ OPCODE(IMul32,                                              U32,            U32,
 OPCODE(INeg32,                                              U32,            U32,                                                                            )
 OPCODE(INeg64,                                              U64,            U64,                                                                            )
 OPCODE(IAbs32,                                              U32,            U32,                                                                            )
+OPCODE(IAbs64,                                              U64,            U64,                                                                            )
 OPCODE(ShiftLeftLogical32,                                  U32,            U32,            U32,                                                            )
 OPCODE(ShiftLeftLogical64,                                  U64,            U64,            U32,                                                            )
 OPCODE(ShiftRightLogical32,                                 U32,            U32,            U32,                                                            )
@@ -311,16 +312,28 @@ OPCODE(ConvertF16F32,                                       F16,            F32,
 OPCODE(ConvertF32F16,                                       F32,            F16,                                                                            )
 OPCODE(ConvertF32F64,                                       F32,            F64,                                                                            )
 OPCODE(ConvertF64F32,                                       F64,            F32,                                                                            )
+OPCODE(ConvertF16S8,                                        F16,            U32,                                                                            )
+OPCODE(ConvertF16S16,                                       F16,            U32,                                                                            )
 OPCODE(ConvertF16S32,                                       F16,            U32,                                                                            )
 OPCODE(ConvertF16S64,                                       F16,            U64,                                                                            )
+OPCODE(ConvertF16U8,                                        F16,            U32,                                                                            )
+OPCODE(ConvertF16U16,                                       F16,            U32,                                                                            )
 OPCODE(ConvertF16U32,                                       F16,            U32,                                                                            )
 OPCODE(ConvertF16U64,                                       F16,            U64,                                                                            )
+OPCODE(ConvertF32S8,                                        F32,            U32,                                                                            )
+OPCODE(ConvertF32S16,                                       F32,            U32,                                                                            )
 OPCODE(ConvertF32S32,                                       F32,            U32,                                                                            )
 OPCODE(ConvertF32S64,                                       F32,            U64,                                                                            )
+OPCODE(ConvertF32U8,                                        F32,            U32,                                                                            )
+OPCODE(ConvertF32U16,                                       F32,            U32,                                                                            )
 OPCODE(ConvertF32U32,                                       F32,            U32,                                                                            )
 OPCODE(ConvertF32U64,                                       F32,            U64,                                                                            )
+OPCODE(ConvertF64S8,                                        F64,            U32,                                                                            )
+OPCODE(ConvertF64S16,                                       F64,            U32,                                                                            )
 OPCODE(ConvertF64S32,                                       F64,            U32,                                                                            )
 OPCODE(ConvertF64S64,                                       F64,            U64,                                                                            )
+OPCODE(ConvertF64U8,                                        F64,            U32,                                                                            )
+OPCODE(ConvertF64U16,                                       F64,            U32,                                                                            )
 OPCODE(ConvertF64U32,                                       F64,            U32,                                                                            )
 OPCODE(ConvertF64U64,                                       F64,            U64,                                                                            )
 

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

@@ -121,6 +121,22 @@ IR::F64 TranslatorVisitor::GetDoubleCbuf(u64 insn) {
     return ir.PackDouble2x32(ir.CompositeConstruct(lower_bits, value));
 }
 
+IR::U64 TranslatorVisitor::GetPackedCbuf(u64 insn) {
+    union {
+        u64 raw;
+        BitField<20, 1, u64> unaligned;
+    } const cbuf{insn};
+
+    if (cbuf.unaligned != 0) {
+        throw NotImplementedException("Unaligned packed constant buffer read");
+    }
+    const auto [binding, lower_offset]{CbufAddr(insn)};
+    const IR::U32 upper_offset{ir.Imm32(lower_offset.U32() + 4)};
+    const IR::U32 lower_value{ir.GetCbuf(binding, lower_offset)};
+    const IR::U32 upper_value{ir.GetCbuf(binding, upper_offset)};
+    return ir.PackUint2x32(ir.CompositeConstruct(lower_value, upper_value));
+}
+
 IR::U32 TranslatorVisitor::GetImm20(u64 insn) {
     union {
         u64 raw;
@@ -158,6 +174,11 @@ IR::F64 TranslatorVisitor::GetDoubleImm20(u64 insn) {
     return ir.Imm64(Common::BitCast<f64>(value | sign_bit));
 }
 
+IR::U64 TranslatorVisitor::GetPackedImm20(u64 insn) {
+    const s64 value{GetImm20(insn).U32()};
+    return ir.Imm64(static_cast<u64>(static_cast<s64>(value) << 32));
+}
+
 IR::U32 TranslatorVisitor::GetImm32(u64 insn) {
     union {
         u64 raw;

src/shader_recompiler/frontend/maxwell/translate/impl/impl.h

@@ -356,10 +356,12 @@ public:
     [[nodiscard]] IR::U32 GetCbuf(u64 insn);
     [[nodiscard]] IR::F32 GetFloatCbuf(u64 insn);
     [[nodiscard]] IR::F64 GetDoubleCbuf(u64 insn);
+    [[nodiscard]] IR::U64 GetPackedCbuf(u64 insn);
 
     [[nodiscard]] IR::U32 GetImm20(u64 insn);
     [[nodiscard]] IR::F32 GetFloatImm20(u64 insn);
     [[nodiscard]] IR::F64 GetDoubleImm20(u64 insn);
+    [[nodiscard]] IR::U64 GetPackedImm20(u64 insn);
 
     [[nodiscard]] IR::U32 GetImm32(u64 insn);
     [[nodiscard]] IR::F32 GetFloatImm32(u64 insn);

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

@@ -0,0 +1,173 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/bit_field.h"
+#include "common/common_types.h"
+#include "shader_recompiler/frontend/maxwell/translate/impl/common_encoding.h"
+#include "shader_recompiler/frontend/maxwell/translate/impl/impl.h"
+
+namespace Shader::Maxwell {
+namespace {
+enum class FloatFormat : u64 {
+    F16 = 1,
+    F32 = 2,
+    F64 = 3,
+};
+
+enum class IntFormat : u64 {
+    U8 = 0,
+    U16 = 1,
+    U32 = 2,
+    U64 = 3,
+};
+
+union Encoding {
+    u64 raw;
+    BitField<0, 8, IR::Reg> dest_reg;
+    BitField<8, 2, FloatFormat> float_format;
+    BitField<10, 2, IntFormat> int_format;
+    BitField<13, 1, u64> is_signed;
+    BitField<39, 2, FpRounding> fp_rounding;
+    BitField<41, 2, u64> selector;
+    BitField<47, 1, u64> cc;
+    BitField<45, 1, u64> neg;
+    BitField<49, 1, u64> abs;
+};
+
+bool Is64(u64 insn) {
+    return Encoding{insn}.int_format == IntFormat::U64;
+}
+
+int BitSize(FloatFormat format) {
+    switch (format) {
+    case FloatFormat::F16:
+        return 16;
+    case FloatFormat::F32:
+        return 32;
+    case FloatFormat::F64:
+        return 64;
+    }
+    throw NotImplementedException("Invalid float format {}", format);
+}
+
+IR::U32 SmallAbs(TranslatorVisitor& v, const IR::U32& value, int bitsize) {
+    const IR::U32 least_value{v.ir.Imm32(-(1 << (bitsize - 1)))};
+    const IR::U32 mask{v.ir.ShiftRightArithmetic(value, v.ir.Imm32(bitsize - 1))};
+    const IR::U32 absolute{v.ir.BitwiseXor(v.ir.IAdd(value, mask), mask)};
+    const IR::U1 is_least{v.ir.IEqual(value, least_value)};
+    return IR::U32{v.ir.Select(is_least, value, absolute)};
+}
+
+void I2F(TranslatorVisitor& v, u64 insn, IR::U32U64 src) {
+    const Encoding i2f{insn};
+    if (i2f.cc != 0) {
+        throw NotImplementedException("CC");
+    }
+    const bool is_signed{i2f.is_signed != 0};
+    int src_bitsize{};
+    switch (i2f.int_format) {
+    case IntFormat::U8:
+        src = v.ir.BitFieldExtract(src, v.ir.Imm32(static_cast<u32>(i2f.selector) * 8),
+                                   v.ir.Imm32(8), is_signed);
+        if (i2f.abs != 0) {
+            src = SmallAbs(v, src, 8);
+        }
+        src_bitsize = 8;
+        break;
+    case IntFormat::U16:
+        if (i2f.selector == 1 || i2f.selector == 3) {
+            throw NotImplementedException("Invalid U16 selector {}", i2f.selector.Value());
+        }
+        src = v.ir.BitFieldExtract(src, v.ir.Imm32(static_cast<u32>(i2f.selector) * 8),
+                                   v.ir.Imm32(16), is_signed);
+        if (i2f.abs != 0) {
+            src = SmallAbs(v, src, 16);
+        }
+        src_bitsize = 16;
+        break;
+    case IntFormat::U32:
+    case IntFormat::U64:
+        if (i2f.selector != 0) {
+            throw NotImplementedException("Unexpected selector {}", i2f.selector.Value());
+        }
+        if (i2f.abs != 0 && is_signed) {
+            src = v.ir.IAbs(src);
+        }
+        src_bitsize = i2f.int_format == IntFormat::U64 ? 64 : 32;
+        break;
+    }
+    const int conversion_src_bitsize{i2f.int_format == IntFormat::U64 ? 64 : 32};
+    const int dst_bitsize{BitSize(i2f.float_format)};
+    IR::F16F32F64 value{v.ir.ConvertIToF(dst_bitsize, conversion_src_bitsize, is_signed, src)};
+    if (i2f.neg != 0) {
+        if (i2f.abs != 0 || !is_signed) {
+            // We know the value is positive
+            value = v.ir.FPNeg(value);
+        } else {
+            // Only negate if the input isn't the lowest value
+            IR::U1 is_least;
+            if (src_bitsize == 64) {
+                is_least = v.ir.IEqual(src, v.ir.Imm64(std::numeric_limits<s64>::min()));
+            } else {
+                const IR::U32 least_value{v.ir.Imm32(-(1 << (src_bitsize - 1)))};
+                is_least = v.ir.IEqual(src, least_value);
+            }
+            value = IR::F16F32F64{v.ir.Select(is_least, value, v.ir.FPNeg(value))};
+        }
+    }
+    switch (i2f.float_format) {
+    case FloatFormat::F16: {
+        const IR::F16 zero{v.ir.FPConvert(16, v.ir.Imm32(0.0f))};
+        v.X(i2f.dest_reg, v.ir.PackFloat2x16(v.ir.CompositeConstruct(value, zero)));
+        break;
+    }
+    case FloatFormat::F32:
+        v.F(i2f.dest_reg, value);
+        break;
+    case FloatFormat::F64: {
+        if (!IR::IsAligned(i2f.dest_reg, 2)) {
+            throw NotImplementedException("Unaligned destination {}", i2f.dest_reg.Value());
+        }
+        const IR::Value vector{v.ir.UnpackDouble2x32(value)};
+        for (int i = 0; i < 2; ++i) {
+            v.X(i2f.dest_reg + i, IR::U32{v.ir.CompositeExtract(vector, i)});
+        }
+        break;
+    }
+    default:
+        throw NotImplementedException("Invalid float format {}", i2f.float_format.Value());
+    }
+}
+} // Anonymous namespace
+
+void TranslatorVisitor::I2F_reg(u64 insn) {
+    if (Is64(insn)) {
+        union {
+            u64 raw;
+            BitField<20, 8, IR::Reg> reg;
+        } const value{insn};
+        const IR::Value regs{ir.CompositeConstruct(ir.GetReg(value.reg), ir.GetReg(value.reg + 1))};
+        I2F(*this, insn, ir.PackUint2x32(regs));
+    } else {
+        I2F(*this, insn, GetReg20(insn));
+    }
+}
+
+void TranslatorVisitor::I2F_cbuf(u64 insn) {
+    if (Is64(insn)) {
+        I2F(*this, insn, GetPackedCbuf(insn));
+    } else {
+        I2F(*this, insn, GetCbuf(insn));
+    }
+}
+
+void TranslatorVisitor::I2F_imm(u64 insn) {
+    if (Is64(insn)) {
+        I2F(*this, insn, GetPackedImm20(insn));
+    } else {
+        I2F(*this, insn, GetImm20(insn));
+    }
+}
+
+} // namespace Shader::Maxwell

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

@@ -241,18 +241,6 @@ void TranslatorVisitor::HSETP2_imm(u64) {
     ThrowNotImplemented(Opcode::HSETP2_imm);
 }
 
-void TranslatorVisitor::I2F_reg(u64) {
-    ThrowNotImplemented(Opcode::I2F_reg);
-}
-
-void TranslatorVisitor::I2F_cbuf(u64) {
-    ThrowNotImplemented(Opcode::I2F_cbuf);
-}
-
-void TranslatorVisitor::I2F_imm(u64) {
-    ThrowNotImplemented(Opcode::I2F_imm);
-}
-
 void TranslatorVisitor::IDE(u64) {
     ThrowNotImplemented(Opcode::IDE);
 }

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

@@ -56,7 +56,7 @@ Shader::TextureType GetType(TextureType type, bool dc) {
 }
 
 IR::Value MakeCoords(TranslatorVisitor& v, IR::Reg reg, TextureType type) {
-    const auto read_array{[&]() -> IR::F32 { return v.ir.ConvertUToF(32, v.X(reg)); }};
+    const auto read_array{[&]() -> IR::F32 { return v.ir.ConvertUToF(32, 16, v.X(reg)); }};
     switch (type) {
     case TextureType::_1D:
         return v.F(reg);

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

@@ -65,7 +65,7 @@ IR::Value Composite(TranslatorVisitor& v, Args... regs) {
 }
 
 IR::F32 ReadArray(TranslatorVisitor& v, const IR::U32& value) {
-    return v.ir.ConvertUToF(32, v.ir.BitFieldExtract(value, v.ir.Imm32(0), v.ir.Imm32(16)));
+    return v.ir.ConvertUToF(32, 16, v.ir.BitFieldExtract(value, v.ir.Imm32(0), v.ir.Imm32(16)));
 }
 
 IR::Value Sample(TranslatorVisitor& v, u64 insn) {

src/shader_recompiler/ir_opt/collect_shader_info_pass.cpp

@@ -79,6 +79,14 @@ void VisitUsages(Info& info, IR::Inst& inst) {
     case IR::Opcode::ConvertU16F16:
     case IR::Opcode::ConvertU32F16:
     case IR::Opcode::ConvertU64F16:
+    case IR::Opcode::ConvertF16S8:
+    case IR::Opcode::ConvertF16S16:
+    case IR::Opcode::ConvertF16S32:
+    case IR::Opcode::ConvertF16S64:
+    case IR::Opcode::ConvertF16U8:
+    case IR::Opcode::ConvertF16U16:
+    case IR::Opcode::ConvertF16U32:
+    case IR::Opcode::ConvertF16U64:
     case IR::Opcode::FPAbs16:
     case IR::Opcode::FPAdd16:
     case IR::Opcode::FPCeil16:
@@ -105,6 +113,14 @@ void VisitUsages(Info& info, IR::Inst& inst) {
     case IR::Opcode::FPRoundEven64:
     case IR::Opcode::FPSaturate64:
     case IR::Opcode::FPTrunc64:
+    case IR::Opcode::ConvertF64S8:
+    case IR::Opcode::ConvertF64S16:
+    case IR::Opcode::ConvertF64S32:
+    case IR::Opcode::ConvertF64S64:
+    case IR::Opcode::ConvertF64U8:
+    case IR::Opcode::ConvertF64U16:
+    case IR::Opcode::ConvertF64U32:
+    case IR::Opcode::ConvertF64U64:
         info.uses_fp64 = true;
         break;
     default:
@@ -123,6 +139,12 @@ void VisitUsages(Info& info, IR::Inst& inst) {
     case IR::Opcode::WriteStorageU8:
     case IR::Opcode::WriteStorageS8:
     case IR::Opcode::SelectU8:
+    case IR::Opcode::ConvertF16S8:
+    case IR::Opcode::ConvertF16U8:
+    case IR::Opcode::ConvertF32S8:
+    case IR::Opcode::ConvertF32U8:
+    case IR::Opcode::ConvertF64S8:
+    case IR::Opcode::ConvertF64U8:
         info.uses_int8 = true;
         break;
     default:
@@ -149,6 +171,12 @@ void VisitUsages(Info& info, IR::Inst& inst) {
     case IR::Opcode::ConvertU16F16:
     case IR::Opcode::ConvertU16F32:
     case IR::Opcode::ConvertU16F64:
+    case IR::Opcode::ConvertF16S16:
+    case IR::Opcode::ConvertF16U16:
+    case IR::Opcode::ConvertF32S16:
+    case IR::Opcode::ConvertF32U16:
+    case IR::Opcode::ConvertF64S16:
+    case IR::Opcode::ConvertF64U16:
         info.uses_int16 = true;
         break;
     default:

src/shader_recompiler/ir_opt/lower_fp16_to_fp32.cpp

@@ -70,6 +70,22 @@ IR::Opcode Replace(IR::Opcode op) {
         return IR::Opcode::Identity;
     case IR::Opcode::ConvertF16F32:
         return IR::Opcode::Identity;
+    case IR::Opcode::ConvertF16S8:
+        return IR::Opcode::ConvertF32S8;
+    case IR::Opcode::ConvertF16S16:
+        return IR::Opcode::ConvertF32S16;
+    case IR::Opcode::ConvertF16S32:
+        return IR::Opcode::ConvertF32S32;
+    case IR::Opcode::ConvertF16S64:
+        return IR::Opcode::ConvertF32S64;
+    case IR::Opcode::ConvertF16U8:
+        return IR::Opcode::ConvertF32U8;
+    case IR::Opcode::ConvertF16U16:
+        return IR::Opcode::ConvertF32U16;
+    case IR::Opcode::ConvertF16U32:
+        return IR::Opcode::ConvertF32U32;
+    case IR::Opcode::ConvertF16U64:
+        return IR::Opcode::ConvertF32U64;
     default:
         return op;
     }

src/video_core/renderer_vulkan/vk_pipeline_cache.cpp

@@ -227,6 +227,7 @@ PipelineCache::PipelineCache(RasterizerVulkan& rasterizer_, Tegra::GPU& gpu_,
       update_descriptor_queue{update_descriptor_queue_}, render_pass_cache{render_pass_cache_},
       buffer_cache{buffer_cache_}, texture_cache{texture_cache_} {
     const auto& float_control{device.FloatControlProperties()};
+    const VkDriverIdKHR driver_id{device.GetDriverID()};
     profile = Shader::Profile{
         .unified_descriptor_binding = true,
         .support_float_controls = true,
@@ -242,7 +243,7 @@ PipelineCache::PipelineCache(RasterizerVulkan& rasterizer_, Tegra::GPU& gpu_,
             float_control.shaderSignedZeroInfNanPreserveFloat16 != VK_FALSE,
         .support_fp32_signed_zero_nan_preserve =
             float_control.shaderSignedZeroInfNanPreserveFloat32 != VK_FALSE,
-        .has_broken_spirv_clamp = true, // TODO: is_intel
+        .has_broken_spirv_clamp = driver_id == VK_DRIVER_ID_INTEL_PROPRIETARY_WINDOWS_KHR,
     };
 }