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yuzu/src/shader_recompiler/backend/spirv/emit_spirv_control_flow.cpp

28 lines
946 B
C++

// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "shader_recompiler/backend/spirv/emit_spirv_instructions.h"
#include "shader_recompiler/backend/spirv/spirv_emit_context.h"
namespace Shader::Backend::SPIRV {
void EmitJoin(EmitContext&) {
throw NotImplementedException("Join shouldn't be emitted");
}
void EmitDemoteToHelperInvocation(EmitContext& ctx) {
if (ctx.profile.support_demote_to_helper_invocation) {
ctx.OpDemoteToHelperInvocation();
} else {
const Id kill_label{ctx.OpLabel()};
const Id impossible_label{ctx.OpLabel()};
ctx.OpSelectionMerge(impossible_label, spv::SelectionControlMask::MaskNone);
ctx.OpBranchConditional(ctx.true_value, kill_label, impossible_label);
ctx.AddLabel(kill_label);
ctx.OpKill();
ctx.AddLabel(impossible_label);
}
}
} // namespace Shader::Backend::SPIRV