llvm::salvageDebugInfo

Synopses

Declared in <llvm/CodeGen/GlobalISel/Utils.h>

Salvage debug records that use an instruction before it is deleted.

void
salvageDebugInfo(Instruction& I);

Assuming the instruction MI is going to be deleted, attempt to salvage debug users of MI by writing the effect of MI in a DIExpression.

void
salvageDebugInfo(
    MachineRegisterInfo const& MRI,
    MachineInstr& MI);

Name	Description
I	Instruction about to be deleted whose debug uses may be salvaged.
MRI	Register information for the function.
MI	Instruction whose debug users may be salvaged.