shader: Initial implementation of an AST

1 files changed, 0 insertions, 86 deletions

diff --git a/src/shader_recompiler/frontend/maxwell/termination_code.cpp b/src/shader_recompiler/frontend/maxwell/termination_code.cpp
deleted file mode 100644
index ed5137f20..000000000
--- a/src/shader_recompiler/frontend/maxwell/termination_code.cpp
+++ /dev/null
@@ -1,86 +0,0 @@
-// Copyright 2021 yuzu Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <span>
-
-#include "shader_recompiler/exception.h"
-#include "shader_recompiler/frontend/ir/basic_block.h"
-#include "shader_recompiler/frontend/ir/ir_emitter.h"
-#include "shader_recompiler/frontend/maxwell/control_flow.h"
-#include "shader_recompiler/frontend/maxwell/termination_code.h"
-
-namespace Shader::Maxwell {
-
-static void EmitExit(IR::IREmitter& ir) {
-    ir.Exit();
-}
-
-static IR::U1 GetFlowTest(IR::FlowTest flow_test, IR::IREmitter& ir) {
-    switch (flow_test) {
-    case IR::FlowTest::T:
-        return ir.Imm1(true);
-    case IR::FlowTest::F:
-        return ir.Imm1(false);
-    case IR::FlowTest::NE:
-        // FIXME: Verify this
-        return ir.LogicalNot(ir.GetZFlag());
-    case IR::FlowTest::NaN:
-        // FIXME: Verify this
-        return ir.LogicalAnd(ir.GetSFlag(), ir.GetZFlag());
-    default:
-        throw NotImplementedException("Flow test {}", flow_test);
-    }
-}
-
-static IR::U1 GetCond(IR::Condition cond, IR::IREmitter& ir) {
-    const IR::FlowTest flow_test{cond.FlowTest()};
-    const auto [pred, pred_negated]{cond.Pred()};
-    if (pred == IR::Pred::PT && !pred_negated) {
-        return GetFlowTest(flow_test, ir);
-    }
-    if (flow_test == IR::FlowTest::T) {
-        return ir.GetPred(pred, pred_negated);
-    }
-    return ir.LogicalAnd(ir.GetPred(pred, pred_negated), GetFlowTest(flow_test, ir));
-}
-
-static void EmitBranch(const Flow::Block& flow_block, std::span<IR::Block* const> block_map,
-                       IR::IREmitter& ir) {
-    const auto add_immediate_predecessor = [&](Flow::BlockId label) {
-        block_map[label]->AddImmediatePredecessor(&ir.block);
-    };
-    if (flow_block.cond == true) {
-        add_immediate_predecessor(flow_block.branch_true);
-        return ir.Branch(block_map[flow_block.branch_true]);
-    }
-    if (flow_block.cond == false) {
-        add_immediate_predecessor(flow_block.branch_false);
-        return ir.Branch(block_map[flow_block.branch_false]);
-    }
-    add_immediate_predecessor(flow_block.branch_true);
-    add_immediate_predecessor(flow_block.branch_false);
-    return ir.BranchConditional(GetCond(flow_block.cond, ir), block_map[flow_block.branch_true],
-                                block_map[flow_block.branch_false]);
-}
-
-void EmitTerminationCode(const Flow::Block& flow_block, std::span<IR::Block* const> block_map) {
-    IR::Block* const block{block_map[flow_block.id]};
-    IR::IREmitter ir(*block);
-    switch (flow_block.end_class) {
-    case Flow::EndClass::Branch:
-        EmitBranch(flow_block, block_map, ir);
-        break;
-    case Flow::EndClass::Exit:
-        EmitExit(ir);
-        break;
-    case Flow::EndClass::Return:
-        ir.Return();
-        break;
-    case Flow::EndClass::Unreachable:
-        ir.Unreachable();
-        break;
-    }
-}
-
-} // namespace Shader::Maxwell