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rsx/fp: Fix pre-branch epilogue emit

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kd-11 2025-12-08 02:44:20 +03:00 committed by kd-11
parent 98a12de256
commit 5688573b3d
2 changed files with 31 additions and 24 deletions
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2
rpcs3/Emu/RSX/Program/Assembler/FPToCFG.cpp
View File

@ -139,6 +139,7 @@ namespace rsx::assembler
default:
// Missing an edge type?
rsx_log.error("CFG: Unexpected block exit. Report to developers.");
break;
}
}
else if (bb->pred.empty())
@ -221,6 +222,7 @@ namespace rsx::assembler
ir_inst.length += 4;
pc++;
}
break;
}
pc++;

53
rpcs3/Emu/RSX/Program/FragmentProgramDecompiler.cpp
View File

@ -1276,7 +1276,7 @@ std::string FragmentProgramDecompiler::Decompile()
// The RSX CFG is missing the output block. We inject a fake tail block that ingests the ROP outputs.
BasicBlock* rop_block = nullptr;
BasicBlock* tail_block = &graph.blocks.back();
if (tail_block->instructions.size() == 0)
if (tail_block->instructions.empty())
{
// Merge block. Use this directly
rop_block = tail_block;
@ -1326,6 +1326,20 @@ std::string FragmentProgramDecompiler::Decompile()
block_data[block] = { level, loop };
};
auto emit_block = [&](const std::vector<Instruction>& instructions)
{
for (auto& inst : instructions)
{
m_instruction = &inst;
dst.HEX = inst.bytecode[0];
src0.HEX = inst.bytecode[1];
src1.HEX = inst.bytecode[2];
src2.HEX = inst.bytecode[3];
ensure(handle_tex_srb(inst.opcode) || handle_sct_scb(inst.opcode), "Unsupported operation");
}
};
for (const auto &block : graph.blocks)
{
auto found = block_data.find(&block);
@ -1376,21 +1390,22 @@ std::string FragmentProgramDecompiler::Decompile()
if (!block.prologue.empty())
{
AddCode("// Prologue");
for (auto& inst : block.prologue)
{
m_instruction = &inst;
dst.HEX = inst.bytecode[0];
src0.HEX = inst.bytecode[1];
src1.HEX = inst.bytecode[2];
src2.HEX = inst.bytecode[3];
ensure(handle_tex_srb(inst.opcode) || handle_sct_scb(inst.opcode), "Unsupported operation");
}
emit_block(block.prologue);
}
const bool early_epilogue =
!block.epilogue.empty() &&
!block.succ.empty() &&
(block.succ.front().type == EdgeType::IF || block.succ.front().type == EdgeType::LOOP);
for (const auto& inst : block.instructions)
{
if (early_epilogue && &inst == &block.instructions.back())
{
AddCode("// Epilogue");
emit_block(block.epilogue);
}
m_instruction = &inst;
dst.HEX = inst.bytecode[0];
@ -1459,20 +1474,10 @@ std::string FragmentProgramDecompiler::Decompile()
if (dst.end) break;
}
if (!block.epilogue.empty())
if (!early_epilogue && !block.epilogue.empty())
{
AddCode("// Epilogue");
for (auto& inst : block.epilogue)
{
m_instruction = &inst;
dst.HEX = inst.bytecode[0];
src0.HEX = inst.bytecode[1];
src1.HEX = inst.bytecode[2];
src2.HEX = inst.bytecode[3];
ensure(handle_tex_srb(inst.opcode) || handle_sct_scb(inst.opcode), "Unsupported operation");
}
emit_block(block.epilogue);
}
for (auto& succ : block.succ)