Merge pull request #6585 from ameerj/hades

Shader Decompiler Rewrite

1 files changed, 143 insertions, 0 deletions

diff --git a/src/shader_recompiler/ir_opt/lower_fp16_to_fp32.cpp b/src/shader_recompiler/ir_opt/lower_fp16_to_fp32.cpp
new file mode 100644
index 000000000..773e1f961
--- /dev/null
+++ b/src/shader_recompiler/ir_opt/lower_fp16_to_fp32.cpp
@@ -0,0 +1,143 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <algorithm>
+
+#include "shader_recompiler/frontend/ir/ir_emitter.h"
+#include "shader_recompiler/frontend/ir/value.h"
+#include "shader_recompiler/ir_opt/passes.h"
+
+namespace Shader::Optimization {
+namespace {
+IR::Opcode Replace(IR::Opcode op) {
+    switch (op) {
+    case IR::Opcode::FPAbs16:
+        return IR::Opcode::FPAbs32;
+    case IR::Opcode::FPAdd16:
+        return IR::Opcode::FPAdd32;
+    case IR::Opcode::FPCeil16:
+        return IR::Opcode::FPCeil32;
+    case IR::Opcode::FPFloor16:
+        return IR::Opcode::FPFloor32;
+    case IR::Opcode::FPFma16:
+        return IR::Opcode::FPFma32;
+    case IR::Opcode::FPMul16:
+        return IR::Opcode::FPMul32;
+    case IR::Opcode::FPNeg16:
+        return IR::Opcode::FPNeg32;
+    case IR::Opcode::FPRoundEven16:
+        return IR::Opcode::FPRoundEven32;
+    case IR::Opcode::FPSaturate16:
+        return IR::Opcode::FPSaturate32;
+    case IR::Opcode::FPClamp16:
+        return IR::Opcode::FPClamp32;
+    case IR::Opcode::FPTrunc16:
+        return IR::Opcode::FPTrunc32;
+    case IR::Opcode::CompositeConstructF16x2:
+        return IR::Opcode::CompositeConstructF32x2;
+    case IR::Opcode::CompositeConstructF16x3:
+        return IR::Opcode::CompositeConstructF32x3;
+    case IR::Opcode::CompositeConstructF16x4:
+        return IR::Opcode::CompositeConstructF32x4;
+    case IR::Opcode::CompositeExtractF16x2:
+        return IR::Opcode::CompositeExtractF32x2;
+    case IR::Opcode::CompositeExtractF16x3:
+        return IR::Opcode::CompositeExtractF32x3;
+    case IR::Opcode::CompositeExtractF16x4:
+        return IR::Opcode::CompositeExtractF32x4;
+    case IR::Opcode::CompositeInsertF16x2:
+        return IR::Opcode::CompositeInsertF32x2;
+    case IR::Opcode::CompositeInsertF16x3:
+        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::FPIsNan16:
+        return IR::Opcode::FPIsNan32;
+    case IR::Opcode::ConvertS16F16:
+        return IR::Opcode::ConvertS16F32;
+    case IR::Opcode::ConvertS32F16:
+        return IR::Opcode::ConvertS32F32;
+    case IR::Opcode::ConvertS64F16:
+        return IR::Opcode::ConvertS64F32;
+    case IR::Opcode::ConvertU16F16:
+        return IR::Opcode::ConvertU16F32;
+    case IR::Opcode::ConvertU32F16:
+        return IR::Opcode::ConvertU32F32;
+    case IR::Opcode::ConvertU64F16:
+        return IR::Opcode::ConvertU64F32;
+    case IR::Opcode::PackFloat2x16:
+        return IR::Opcode::PackHalf2x16;
+    case IR::Opcode::UnpackFloat2x16:
+        return IR::Opcode::UnpackHalf2x16;
+    case IR::Opcode::ConvertF32F16:
+        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;
+    case IR::Opcode::GlobalAtomicAddF16x2:
+        return IR::Opcode::GlobalAtomicAddF32x2;
+    case IR::Opcode::StorageAtomicAddF16x2:
+        return IR::Opcode::StorageAtomicAddF32x2;
+    case IR::Opcode::GlobalAtomicMinF16x2:
+        return IR::Opcode::GlobalAtomicMinF32x2;
+    case IR::Opcode::StorageAtomicMinF16x2:
+        return IR::Opcode::StorageAtomicMinF32x2;
+    case IR::Opcode::GlobalAtomicMaxF16x2:
+        return IR::Opcode::GlobalAtomicMaxF32x2;
+    case IR::Opcode::StorageAtomicMaxF16x2:
+        return IR::Opcode::StorageAtomicMaxF32x2;
+    default:
+        return op;
+    }
+}
+} // Anonymous namespace
+
+void LowerFp16ToFp32(IR::Program& program) {
+    for (IR::Block* const block : program.blocks) {
+        for (IR::Inst& inst : block->Instructions()) {
+            inst.ReplaceOpcode(Replace(inst.GetOpcode()));
+        }
+    }
+}
+
+} // namespace Shader::Optimization