From 36b0be1ec1558f88d4f031a1817c3a4c2cba07a6 Mon Sep 17 00:00:00 2001 From: Richard-Qin-X Date: Sat, 22 Aug 2026 18:59:22 +0800 Subject: [CodeGen] Match LLVM machine debug stripping --- backend/lib/CodeGen/MachineStripDebug.cpp | 34 +++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 backend/lib/CodeGen/MachineStripDebug.cpp (limited to 'backend/lib/CodeGen/MachineStripDebug.cpp') diff --git a/backend/lib/CodeGen/MachineStripDebug.cpp b/backend/lib/CodeGen/MachineStripDebug.cpp new file mode 100644 index 0000000..4699ef0 --- /dev/null +++ b/backend/lib/CodeGen/MachineStripDebug.cpp @@ -0,0 +1,34 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +#include "rcc/CodeGen/MachineStripDebug.h" + +#include "rcc/CodeGen/MachineBasicBlock.h" +#include "rcc/CodeGen/MachineFunction.h" +#include "rcc/CodeGen/MachineInstr.h" + +namespace rcc { + +Expected stripDebugMachineFunction(MachineFunction &Function) { + bool Changed = false; + for (MachineBasicBlock *Block = Function.firstBlock(); Block != nullptr; Block = Block->next()) { + for (MachineInstr *Instruction = Block->firstInstruction(); Instruction != nullptr;) { + MachineInstr *Next = Instruction->next(); + if (Instruction->isDebugInstr() && Instruction->operandCount() > 1) { + auto Removed = Block->removeInstruction(*Instruction); + if (!Removed) + return std::unexpected(Removed.error()); + Changed = true; + Instruction = Next; + continue; + } + if (Instruction->debugLocation()) { + Instruction->clearDebugLocation(); + Changed = true; + } + Instruction = Next; + } + } + return Changed; +} + +} // namespace rcc -- cgit v1.2.3