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// 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<bool> 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 = Instruction->eraseFromParent();
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
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