shader: Fix floating point comparison for FP16

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

@@ -72,7 +72,7 @@ bool IsCompareOpOrdered(FPCompareOp op) {
     }
 }
 
-IR::U1 FloatingPointCompare(IR::IREmitter& ir, const IR::F32& operand_1, const IR::F32& operand_2,
+IR::U1 FloatingPointCompare(IR::IREmitter& ir, const IR::F16F32F64& operand_1, const IR::F16F32F64& operand_2,
                             FPCompareOp compare_op, IR::FpControl control) {
     const bool ordered{IsCompareOpOrdered(compare_op)};
     switch (compare_op) {

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

@@ -18,7 +18,7 @@ namespace Shader::Maxwell {
 
 [[nodiscard]] bool IsCompareOpOrdered(FPCompareOp op);
 
-[[nodiscard]] IR::U1 FloatingPointCompare(IR::IREmitter& ir, const IR::F32& operand_1,
-                                          const IR::F32& operand_2, FPCompareOp compare_op,
+[[nodiscard]] IR::U1 FloatingPointCompare(IR::IREmitter& ir, const IR::F16F32F64& operand_1,
+                                          const IR::F16F32F64& operand_2, FPCompareOp compare_op,
                                           IR::FpControl control = {});
 } // namespace Shader::Maxwell

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

@@ -22,8 +22,8 @@ void HSET2(TranslatorVisitor& v, u64 insn, const IR::U32& src_b, bool bf, bool f
 
     auto [lhs_a, rhs_a]{Extract(v.ir, v.X(hset2.src_a_reg), hset2.swizzle_a)};
     auto [lhs_b, rhs_b]{Extract(v.ir, src_b, swizzle_b)};
-    // TODO: Implement FP16 FloatingPointCompare
-    //if (lhs_a.Type() != lhs_b.Type()) {
+
+    if (lhs_a.Type() != lhs_b.Type()) {
         if (lhs_a.Type() == IR::Type::F16) {
             lhs_a = v.ir.FPConvert(32, lhs_a);
             rhs_a = v.ir.FPConvert(32, rhs_a);
@@ -32,7 +32,7 @@ void HSET2(TranslatorVisitor& v, u64 insn, const IR::U32& src_b, bool bf, bool f
             lhs_b = v.ir.FPConvert(32, lhs_b);
             rhs_b = v.ir.FPConvert(32, rhs_b);
         }
-    //}
+    }
 
     lhs_a = v.ir.FPAbsNeg(lhs_a, hset2.abs_a != 0, hset2.neg_a != 0);
     rhs_a = v.ir.FPAbsNeg(rhs_a, hset2.abs_a != 0, hset2.neg_a != 0);
@@ -94,22 +94,22 @@ void TranslatorVisitor::HSET2_cbuf(u64 insn) {
 }
 
 void TranslatorVisitor::HSET2_imm(u64 insn) {
-  union {
-      u64 insn;
-      BitField<53, 1, u64> bf;
-      BitField<54, 1, u64> ftz;
-      BitField<49, 4, FPCompareOp> compare_op;
-      BitField<56, 1, u64> neg_high;
-      BitField<30, 9, u64> high;
-      BitField<29, 1, u64> neg_low;
-      BitField<20, 9, u64> low;
-  } const hset2{insn};
-
-  const u32 imm{static_cast<u32>(hset2.low << 6) | ((hset2.neg_low != 0 ? 1 : 0) << 15) |
-                static_cast<u32>(hset2.high << 22) | ((hset2.neg_high != 0 ? 1 : 0) << 31)};
-
-  HSET2(*this, insn, ir.Imm32(imm), hset2.bf != 0, hset2.ftz != 0, false, false,
-        hset2.compare_op, Swizzle::H1_H0);
+    union {
+        u64 insn;
+        BitField<53, 1, u64> bf;
+        BitField<54, 1, u64> ftz;
+        BitField<49, 4, FPCompareOp> compare_op;
+        BitField<56, 1, u64> neg_high;
+        BitField<30, 9, u64> high;
+        BitField<29, 1, u64> neg_low;
+        BitField<20, 9, u64> low;
+    } const hset2{insn};
+
+    const u32 imm{static_cast<u32>(hset2.low << 6) | ((hset2.neg_low != 0 ? 1 : 0) << 15) |
+                  static_cast<u32>(hset2.high << 22) | ((hset2.neg_high != 0 ? 1 : 0) << 31)};
+
+    HSET2(*this, insn, ir.Imm32(imm), hset2.bf != 0, hset2.ftz != 0, false, false, hset2.compare_op,
+          Swizzle::H1_H0);
 }
 
 } // namespace Shader::Maxwell

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

@@ -24,17 +24,17 @@ void HSETP2(TranslatorVisitor& v, u64 insn, const IR::U32& src_b, bool neg_b, bo
 
     auto [lhs_a, rhs_a]{Extract(v.ir, v.X(hsetp2.src_a_reg), hsetp2.swizzle_a)};
     auto [lhs_b, rhs_b]{Extract(v.ir, src_b, swizzle_b)};
-    // TODO: Implement FP16 FloatingPointCompare
-    // if (lhs_a.Type() != lhs_b.Type()) {
-    if (lhs_a.Type() == IR::Type::F16) {
-        lhs_a = v.ir.FPConvert(32, lhs_a);
-        rhs_a = v.ir.FPConvert(32, rhs_a);
-    }
-    if (lhs_b.Type() == IR::Type::F16) {
-        lhs_b = v.ir.FPConvert(32, lhs_b);
-        rhs_b = v.ir.FPConvert(32, rhs_b);
+
+    if (lhs_a.Type() != lhs_b.Type()) {
+        if (lhs_a.Type() == IR::Type::F16) {
+            lhs_a = v.ir.FPConvert(32, lhs_a);
+            rhs_a = v.ir.FPConvert(32, rhs_a);
+        }
+        if (lhs_b.Type() == IR::Type::F16) {
+            lhs_b = v.ir.FPConvert(32, lhs_b);
+            rhs_b = v.ir.FPConvert(32, rhs_b);
+        }
     }
-    //}
 
     lhs_a = v.ir.FPAbsNeg(lhs_a, hsetp2.abs_a != 0, hsetp2.neg_a != 0);
     rhs_a = v.ir.FPAbsNeg(rhs_a, hsetp2.abs_a != 0, hsetp2.neg_a != 0);

src/shader_recompiler/ir_opt/lower_fp16_to_fp32.cpp

@@ -50,6 +50,30 @@ IR::Opcode Replace(IR::Opcode op) {
         return IR::Opcode::CompositeInsertF32x3;
     case IR::Opcode::CompositeInsertF16x4:
         return IR::Opcode::CompositeInsertF32x4;
+    case IR::Opcode::FPOrdEqual16:
+        return IR::Opcode::FPOrdEqual32;
+    case IR::Opcode::FPUnordEqual16:
+        return IR::Opcode::FPUnordEqual32;
+    case IR::Opcode::FPOrdNotEqual16:
+        return IR::Opcode::FPOrdNotEqual32;
+    case IR::Opcode::FPUnordNotEqual16:
+        return IR::Opcode::FPUnordNotEqual32;
+    case IR::Opcode::FPOrdLessThan16:
+        return IR::Opcode::FPOrdLessThan32;
+    case IR::Opcode::FPUnordLessThan16:
+        return IR::Opcode::FPUnordLessThan32;
+    case IR::Opcode::FPOrdGreaterThan16:
+        return IR::Opcode::FPOrdGreaterThan32;
+    case IR::Opcode::FPUnordGreaterThan16:
+        return IR::Opcode::FPUnordGreaterThan32;
+    case IR::Opcode::FPOrdLessThanEqual16:
+        return IR::Opcode::FPOrdLessThanEqual32;
+    case IR::Opcode::FPUnordLessThanEqual16:
+        return IR::Opcode::FPUnordLessThanEqual32;
+    case IR::Opcode::FPOrdGreaterThanEqual16:
+        return IR::Opcode::FPOrdGreaterThanEqual32;
+    case IR::Opcode::FPUnordGreaterThanEqual16:
+        return IR::Opcode::FPUnordGreaterThanEqual32;
     case IR::Opcode::ConvertS16F16:
         return IR::Opcode::ConvertS16F32;
     case IR::Opcode::ConvertS32F16: