1 files changed, 275 insertions, 0 deletions
diff --git a/src/shader_recompiler/backend/spirv/emit_spirv_memory.cpp b/src/shader_recompiler/backend/spirv/emit_spirv_memory.cpp
new file mode 100644
index 000000000..679ee2684
--- /dev/null
+++ b/src/shader_recompiler/backend/spirv/emit_spirv_memory.cpp
@@ -0,0 +1,275 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <bit>
+
+#include "shader_recompiler/backend/spirv/emit_spirv.h"
+#include "shader_recompiler/backend/spirv/emit_spirv_instructions.h"
+
+namespace Shader::Backend::SPIRV {
+namespace {
+Id StorageIndex(EmitContext& ctx, const IR::Value& offset, size_t element_size,
+                u32 index_offset = 0) {
+    if (offset.IsImmediate()) {
+        const u32 imm_offset{static_cast<u32>(offset.U32() / element_size) + index_offset};
+        return ctx.Const(imm_offset);
+    }
+    const u32 shift{static_cast<u32>(std::countr_zero(element_size))};
+    Id index{ctx.Def(offset)};
+    if (shift != 0) {
+        const Id shift_id{ctx.Const(shift)};
+        index = ctx.OpShiftRightLogical(ctx.U32[1], index, shift_id);
+    }
+    if (index_offset != 0) {
+        index = ctx.OpIAdd(ctx.U32[1], index, ctx.Const(index_offset));
+    }
+    return index;
+}
+
+Id StoragePointer(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset,
+                  const StorageTypeDefinition& type_def, size_t element_size,
+                  Id StorageDefinitions::*member_ptr, u32 index_offset = 0) {
+    if (!binding.IsImmediate()) {
+        throw NotImplementedException("Dynamic storage buffer indexing");
+    }
+    const Id ssbo{ctx.ssbos[binding.U32()].*member_ptr};
+    const Id index{StorageIndex(ctx, offset, element_size, index_offset)};
+    return ctx.OpAccessChain(type_def.element, ssbo, ctx.u32_zero_value, index);
+}
+
+Id LoadStorage(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset, Id result_type,
+               const StorageTypeDefinition& type_def, size_t element_size,
+               Id StorageDefinitions::*member_ptr, u32 index_offset = 0) {
+    const Id pointer{
+        StoragePointer(ctx, binding, offset, type_def, element_size, member_ptr, index_offset)};
+    return ctx.OpLoad(result_type, pointer);
+}
+
+Id LoadStorage32(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset,
+                 u32 index_offset = 0) {
+    return LoadStorage(ctx, binding, offset, ctx.U32[1], ctx.storage_types.U32, sizeof(u32),
+                       &StorageDefinitions::U32, index_offset);
+}
+
+void WriteStorage(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset, Id value,
+                  const StorageTypeDefinition& type_def, size_t element_size,
+                  Id StorageDefinitions::*member_ptr, u32 index_offset = 0) {
+    const Id pointer{
+        StoragePointer(ctx, binding, offset, type_def, element_size, member_ptr, index_offset)};
+    ctx.OpStore(pointer, value);
+}
+
+void WriteStorage32(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset, Id value,
+                    u32 index_offset = 0) {
+    WriteStorage(ctx, binding, offset, value, ctx.storage_types.U32, sizeof(u32),
+                 &StorageDefinitions::U32, index_offset);
+}
+} // Anonymous namespace
+
+void EmitLoadGlobalU8(EmitContext&) {
+    throw NotImplementedException("SPIR-V Instruction");
+}
+
+void EmitLoadGlobalS8(EmitContext&) {
+    throw NotImplementedException("SPIR-V Instruction");
+}
+
+void EmitLoadGlobalU16(EmitContext&) {
+    throw NotImplementedException("SPIR-V Instruction");
+}
+
+void EmitLoadGlobalS16(EmitContext&) {
+    throw NotImplementedException("SPIR-V Instruction");
+}
+
+Id EmitLoadGlobal32(EmitContext& ctx, Id address) {
+    if (ctx.profile.support_int64) {
+        return ctx.OpFunctionCall(ctx.U32[1], ctx.load_global_func_u32, address);
+    }
+    LOG_WARNING(Shader_SPIRV, "Int64 not supported, ignoring memory operation");
+    return ctx.Const(0u);
+}
+
+Id EmitLoadGlobal64(EmitContext& ctx, Id address) {
+    if (ctx.profile.support_int64) {
+        return ctx.OpFunctionCall(ctx.U32[2], ctx.load_global_func_u32x2, address);
+    }
+    LOG_WARNING(Shader_SPIRV, "Int64 not supported, ignoring memory operation");
+    return ctx.Const(0u, 0u);
+}
+
+Id EmitLoadGlobal128(EmitContext& ctx, Id address) {
+    if (ctx.profile.support_int64) {
+        return ctx.OpFunctionCall(ctx.U32[4], ctx.load_global_func_u32x4, address);
+    }
+    LOG_WARNING(Shader_SPIRV, "Int64 not supported, ignoring memory operation");
+    return ctx.Const(0u, 0u, 0u, 0u);
+}
+
+void EmitWriteGlobalU8(EmitContext&) {
+    throw NotImplementedException("SPIR-V Instruction");
+}
+
+void EmitWriteGlobalS8(EmitContext&) {
+    throw NotImplementedException("SPIR-V Instruction");
+}
+
+void EmitWriteGlobalU16(EmitContext&) {
+    throw NotImplementedException("SPIR-V Instruction");
+}
+
+void EmitWriteGlobalS16(EmitContext&) {
+    throw NotImplementedException("SPIR-V Instruction");
+}
+
+void EmitWriteGlobal32(EmitContext& ctx, Id address, Id value) {
+    if (ctx.profile.support_int64) {
+        ctx.OpFunctionCall(ctx.void_id, ctx.write_global_func_u32, address, value);
+        return;
+    }
+    LOG_WARNING(Shader_SPIRV, "Int64 not supported, ignoring memory operation");
+}
+
+void EmitWriteGlobal64(EmitContext& ctx, Id address, Id value) {
+    if (ctx.profile.support_int64) {
+        ctx.OpFunctionCall(ctx.void_id, ctx.write_global_func_u32x2, address, value);
+        return;
+    }
+    LOG_WARNING(Shader_SPIRV, "Int64 not supported, ignoring memory operation");
+}
+
+void EmitWriteGlobal128(EmitContext& ctx, Id address, Id value) {
+    if (ctx.profile.support_int64) {
+        ctx.OpFunctionCall(ctx.void_id, ctx.write_global_func_u32x4, address, value);
+        return;
+    }
+    LOG_WARNING(Shader_SPIRV, "Int64 not supported, ignoring memory operation");
+}
+
+Id EmitLoadStorageU8(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset) {
+    if (ctx.profile.support_int8 && ctx.profile.support_descriptor_aliasing) {
+        return ctx.OpUConvert(ctx.U32[1],
+                              LoadStorage(ctx, binding, offset, ctx.U8, ctx.storage_types.U8,
+                                          sizeof(u8), &StorageDefinitions::U8));
+    } else {
+        return ctx.OpBitFieldUExtract(ctx.U32[1], LoadStorage32(ctx, binding, offset),
+                                      ctx.BitOffset8(offset), ctx.Const(8u));
+    }
+}
+
+Id EmitLoadStorageS8(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset) {
+    if (ctx.profile.support_int8 && ctx.profile.support_descriptor_aliasing) {
+        return ctx.OpSConvert(ctx.U32[1],
+                              LoadStorage(ctx, binding, offset, ctx.S8, ctx.storage_types.S8,
+                                          sizeof(s8), &StorageDefinitions::S8));
+    } else {
+        return ctx.OpBitFieldSExtract(ctx.U32[1], LoadStorage32(ctx, binding, offset),
+                                      ctx.BitOffset8(offset), ctx.Const(8u));
+    }
+}
+
+Id EmitLoadStorageU16(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset) {
+    if (ctx.profile.support_int16 && ctx.profile.support_descriptor_aliasing) {
+        return ctx.OpUConvert(ctx.U32[1],
+                              LoadStorage(ctx, binding, offset, ctx.U16, ctx.storage_types.U16,
+                                          sizeof(u16), &StorageDefinitions::U16));
+    } else {
+        return ctx.OpBitFieldUExtract(ctx.U32[1], LoadStorage32(ctx, binding, offset),
+                                      ctx.BitOffset16(offset), ctx.Const(16u));
+    }
+}
+
+Id EmitLoadStorageS16(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset) {
+    if (ctx.profile.support_int16 && ctx.profile.support_descriptor_aliasing) {
+        return ctx.OpSConvert(ctx.U32[1],
+                              LoadStorage(ctx, binding, offset, ctx.S16, ctx.storage_types.S16,
+                                          sizeof(s16), &StorageDefinitions::S16));
+    } else {
+        return ctx.OpBitFieldSExtract(ctx.U32[1], LoadStorage32(ctx, binding, offset),
+                                      ctx.BitOffset16(offset), ctx.Const(16u));
+    }
+}
+
+Id EmitLoadStorage32(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset) {
+    return LoadStorage32(ctx, binding, offset);
+}
+
+Id EmitLoadStorage64(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset) {
+    if (ctx.profile.support_descriptor_aliasing) {
+        return LoadStorage(ctx, binding, offset, ctx.U32[2], ctx.storage_types.U32x2,
+                           sizeof(u32[2]), &StorageDefinitions::U32x2);
+    } else {
+        return ctx.OpCompositeConstruct(ctx.U32[2], LoadStorage32(ctx, binding, offset, 0),
+                                        LoadStorage32(ctx, binding, offset, 1));
+    }
+}
+
+Id EmitLoadStorage128(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset) {
+    if (ctx.profile.support_descriptor_aliasing) {
+        return LoadStorage(ctx, binding, offset, ctx.U32[4], ctx.storage_types.U32x4,
+                           sizeof(u32[4]), &StorageDefinitions::U32x4);
+    } else {
+        return ctx.OpCompositeConstruct(ctx.U32[4], LoadStorage32(ctx, binding, offset, 0),
+                                        LoadStorage32(ctx, binding, offset, 1),
+                                        LoadStorage32(ctx, binding, offset, 2),
+                                        LoadStorage32(ctx, binding, offset, 3));
+    }
+}
+
+void EmitWriteStorageU8(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset,
+                        Id value) {
+    WriteStorage(ctx, binding, offset, ctx.OpSConvert(ctx.U8, value), ctx.storage_types.U8,
+                 sizeof(u8), &StorageDefinitions::U8);
+}
+
+void EmitWriteStorageS8(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset,
+                        Id value) {
+    WriteStorage(ctx, binding, offset, ctx.OpSConvert(ctx.S8, value), ctx.storage_types.S8,
+                 sizeof(s8), &StorageDefinitions::S8);
+}
+
+void EmitWriteStorageU16(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset,
+                         Id value) {
+    WriteStorage(ctx, binding, offset, ctx.OpSConvert(ctx.U16, value), ctx.storage_types.U16,
+                 sizeof(u16), &StorageDefinitions::U16);
+}
+
+void EmitWriteStorageS16(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset,
+                         Id value) {
+    WriteStorage(ctx, binding, offset, ctx.OpSConvert(ctx.S16, value), ctx.storage_types.S16,
+                 sizeof(s16), &StorageDefinitions::S16);
+}
+
+void EmitWriteStorage32(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset,
+                        Id value) {
+    WriteStorage32(ctx, binding, offset, value);
+}
+
+void EmitWriteStorage64(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset,
+                        Id value) {
+    if (ctx.profile.support_descriptor_aliasing) {
+        WriteStorage(ctx, binding, offset, value, ctx.storage_types.U32x2, sizeof(u32[2]),
+                     &StorageDefinitions::U32x2);
+    } else {
+        for (u32 index = 0; index < 2; ++index) {
+            const Id element{ctx.OpCompositeExtract(ctx.U32[1], value, index)};
+            WriteStorage32(ctx, binding, offset, element, index);
+        }
+    }
+}
+
+void EmitWriteStorage128(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset,
+                         Id value) {
+    if (ctx.profile.support_descriptor_aliasing) {
+        WriteStorage(ctx, binding, offset, value, ctx.storage_types.U32x4, sizeof(u32[4]),
+                     &StorageDefinitions::U32x4);
+    } else {
+        for (u32 index = 0; index < 4; ++index) {
+            const Id element{ctx.OpCompositeExtract(ctx.U32[1], value, index)};
+            WriteStorage32(ctx, binding, offset, element, index);
+        }
+    }
+}
+
+} // namespace Shader::Backend::SPIRV