Merge pull request #6585 from ameerj/hades

Shader Decompiler Rewrite

1 files changed, 244 insertions, 0 deletions

diff --git a/src/shader_recompiler/backend/glasm/emit_glasm_composite.cpp b/src/shader_recompiler/backend/glasm/emit_glasm_composite.cpp
new file mode 100644
index 000000000..bff0b7c1c
--- /dev/null
+++ b/src/shader_recompiler/backend/glasm/emit_glasm_composite.cpp
@@ -0,0 +1,244 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "shader_recompiler/backend/glasm/emit_context.h"
+#include "shader_recompiler/backend/glasm/emit_glasm_instructions.h"
+#include "shader_recompiler/frontend/ir/value.h"
+
+namespace Shader::Backend::GLASM {
+namespace {
+template <auto read_imm, char type, typename... Values>
+void CompositeConstruct(EmitContext& ctx, IR::Inst& inst, Values&&... elements) {
+    const Register ret{ctx.reg_alloc.Define(inst)};
+    if (std::ranges::any_of(std::array{elements...},
+                            [](const IR::Value& value) { return value.IsImmediate(); })) {
+        using Type = std::invoke_result_t<decltype(read_imm), IR::Value>;
+        const std::array<Type, 4> values{(elements.IsImmediate() ? (elements.*read_imm)() : 0)...};
+        ctx.Add("MOV.{} {},{{{},{},{},{}}};", type, ret, fmt::to_string(values[0]),
+                fmt::to_string(values[1]), fmt::to_string(values[2]), fmt::to_string(values[3]));
+    }
+    size_t index{};
+    for (const IR::Value& element : {elements...}) {
+        if (!element.IsImmediate()) {
+            const ScalarU32 value{ctx.reg_alloc.Consume(element)};
+            ctx.Add("MOV.{} {}.{},{};", type, ret, "xyzw"[index], value);
+        }
+        ++index;
+    }
+}
+
+void CompositeExtract(EmitContext& ctx, IR::Inst& inst, Register composite, u32 index, char type) {
+    const Register ret{ctx.reg_alloc.Define(inst)};
+    if (ret == composite && index == 0) {
+        // No need to do anything here, the source and destination are the same register
+        return;
+    }
+    ctx.Add("MOV.{} {}.x,{}.{};", type, ret, composite, "xyzw"[index]);
+}
+
+template <typename ObjectType>
+void CompositeInsert(EmitContext& ctx, IR::Inst& inst, Register composite, ObjectType object,
+                     u32 index, char type) {
+    const Register ret{ctx.reg_alloc.Define(inst)};
+    const char swizzle{"xyzw"[index]};
+    if (ret != composite && ret == object) {
+        // The object is aliased with the return value, so we have to use a temporary to insert
+        ctx.Add("MOV.{} RC,{};"
+                "MOV.{} RC.{},{};"
+                "MOV.{} {},RC;",
+                type, composite, type, swizzle, object, type, ret);
+    } else if (ret != composite) {
+        // The input composite is not aliased with the return value so we have to copy it before
+        // hand. But the insert object is not aliased with the return value, so we don't have to
+        // worry about that
+        ctx.Add("MOV.{} {},{};"
+                "MOV.{} {}.{},{};",
+                type, ret, composite, type, ret, swizzle, object);
+    } else {
+        // The return value is alised so we can just insert the object, it doesn't matter if it's
+        // aliased
+        ctx.Add("MOV.{} {}.{},{};", type, ret, swizzle, object);
+    }
+}
+} // Anonymous namespace
+
+void EmitCompositeConstructU32x2(EmitContext& ctx, IR::Inst& inst, const IR::Value& e1,
+                                 const IR::Value& e2) {
+    CompositeConstruct<&IR::Value::U32, 'U'>(ctx, inst, e1, e2);
+}
+
+void EmitCompositeConstructU32x3(EmitContext& ctx, IR::Inst& inst, const IR::Value& e1,
+                                 const IR::Value& e2, const IR::Value& e3) {
+    CompositeConstruct<&IR::Value::U32, 'U'>(ctx, inst, e1, e2, e3);
+}
+
+void EmitCompositeConstructU32x4(EmitContext& ctx, IR::Inst& inst, const IR::Value& e1,
+                                 const IR::Value& e2, const IR::Value& e3, const IR::Value& e4) {
+    CompositeConstruct<&IR::Value::U32, 'U'>(ctx, inst, e1, e2, e3, e4);
+}
+
+void EmitCompositeExtractU32x2(EmitContext& ctx, IR::Inst& inst, Register composite, u32 index) {
+    CompositeExtract(ctx, inst, composite, index, 'U');
+}
+
+void EmitCompositeExtractU32x3(EmitContext& ctx, IR::Inst& inst, Register composite, u32 index) {
+    CompositeExtract(ctx, inst, composite, index, 'U');
+}
+
+void EmitCompositeExtractU32x4(EmitContext& ctx, IR::Inst& inst, Register composite, u32 index) {
+    CompositeExtract(ctx, inst, composite, index, 'U');
+}
+
+void EmitCompositeInsertU32x2([[maybe_unused]] EmitContext& ctx,
+                              [[maybe_unused]] Register composite,
+                              [[maybe_unused]] ScalarU32 object, [[maybe_unused]] u32 index) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitCompositeInsertU32x3([[maybe_unused]] EmitContext& ctx,
+                              [[maybe_unused]] Register composite,
+                              [[maybe_unused]] ScalarU32 object, [[maybe_unused]] u32 index) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitCompositeInsertU32x4([[maybe_unused]] EmitContext& ctx,
+                              [[maybe_unused]] Register composite,
+                              [[maybe_unused]] ScalarU32 object, [[maybe_unused]] u32 index) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitCompositeConstructF16x2([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register e1,
+                                 [[maybe_unused]] Register e2) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitCompositeConstructF16x3([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register e1,
+                                 [[maybe_unused]] Register e2, [[maybe_unused]] Register e3) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitCompositeConstructF16x4([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register e1,
+                                 [[maybe_unused]] Register e2, [[maybe_unused]] Register e3,
+                                 [[maybe_unused]] Register e4) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitCompositeExtractF16x2([[maybe_unused]] EmitContext& ctx,
+                               [[maybe_unused]] Register composite, [[maybe_unused]] u32 index) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitCompositeExtractF16x3([[maybe_unused]] EmitContext& ctx,
+                               [[maybe_unused]] Register composite, [[maybe_unused]] u32 index) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitCompositeExtractF16x4([[maybe_unused]] EmitContext& ctx,
+                               [[maybe_unused]] Register composite, [[maybe_unused]] u32 index) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitCompositeInsertF16x2([[maybe_unused]] EmitContext& ctx,
+                              [[maybe_unused]] Register composite, [[maybe_unused]] Register object,
+                              [[maybe_unused]] u32 index) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitCompositeInsertF16x3([[maybe_unused]] EmitContext& ctx,
+                              [[maybe_unused]] Register composite, [[maybe_unused]] Register object,
+                              [[maybe_unused]] u32 index) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitCompositeInsertF16x4([[maybe_unused]] EmitContext& ctx,
+                              [[maybe_unused]] Register composite, [[maybe_unused]] Register object,
+                              [[maybe_unused]] u32 index) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitCompositeConstructF32x2(EmitContext& ctx, IR::Inst& inst, const IR::Value& e1,
+                                 const IR::Value& e2) {
+    CompositeConstruct<&IR::Value::F32, 'F'>(ctx, inst, e1, e2);
+}
+
+void EmitCompositeConstructF32x3(EmitContext& ctx, IR::Inst& inst, const IR::Value& e1,
+                                 const IR::Value& e2, const IR::Value& e3) {
+    CompositeConstruct<&IR::Value::F32, 'F'>(ctx, inst, e1, e2, e3);
+}
+
+void EmitCompositeConstructF32x4(EmitContext& ctx, IR::Inst& inst, const IR::Value& e1,
+                                 const IR::Value& e2, const IR::Value& e3, const IR::Value& e4) {
+    CompositeConstruct<&IR::Value::F32, 'F'>(ctx, inst, e1, e2, e3, e4);
+}
+
+void EmitCompositeExtractF32x2(EmitContext& ctx, IR::Inst& inst, Register composite, u32 index) {
+    CompositeExtract(ctx, inst, composite, index, 'F');
+}
+
+void EmitCompositeExtractF32x3(EmitContext& ctx, IR::Inst& inst, Register composite, u32 index) {
+    CompositeExtract(ctx, inst, composite, index, 'F');
+}
+
+void EmitCompositeExtractF32x4(EmitContext& ctx, IR::Inst& inst, Register composite, u32 index) {
+    CompositeExtract(ctx, inst, composite, index, 'F');
+}
+
+void EmitCompositeInsertF32x2(EmitContext& ctx, IR::Inst& inst, Register composite,
+                              ScalarF32 object, u32 index) {
+    CompositeInsert(ctx, inst, composite, object, index, 'F');
+}
+
+void EmitCompositeInsertF32x3(EmitContext& ctx, IR::Inst& inst, Register composite,
+                              ScalarF32 object, u32 index) {
+    CompositeInsert(ctx, inst, composite, object, index, 'F');
+}
+
+void EmitCompositeInsertF32x4(EmitContext& ctx, IR::Inst& inst, Register composite,
+                              ScalarF32 object, u32 index) {
+    CompositeInsert(ctx, inst, composite, object, index, 'F');
+}
+
+void EmitCompositeConstructF64x2([[maybe_unused]] EmitContext& ctx) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitCompositeConstructF64x3([[maybe_unused]] EmitContext& ctx) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitCompositeConstructF64x4([[maybe_unused]] EmitContext& ctx) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitCompositeExtractF64x2([[maybe_unused]] EmitContext& ctx) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitCompositeExtractF64x3([[maybe_unused]] EmitContext& ctx) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitCompositeExtractF64x4([[maybe_unused]] EmitContext& ctx) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitCompositeInsertF64x2([[maybe_unused]] EmitContext& ctx,
+                              [[maybe_unused]] Register composite, [[maybe_unused]] Register object,
+                              [[maybe_unused]] u32 index) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitCompositeInsertF64x3([[maybe_unused]] EmitContext& ctx,
+                              [[maybe_unused]] Register composite, [[maybe_unused]] Register object,
+                              [[maybe_unused]] u32 index) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitCompositeInsertF64x4([[maybe_unused]] EmitContext& ctx,
+                              [[maybe_unused]] Register composite, [[maybe_unused]] Register object,
+                              [[maybe_unused]] u32 index) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+} // namespace Shader::Backend::GLASM