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...urrent instruction's metadata from the DAGBuilder to the instruction's SDNode. In InstrEmitter::EmitNode() I copy the metadata from the SDNode to the MachineInstr. DwarfDebug::endModule() creates my user-defined DIE (after defining my own DW_TAG and DW_AT IDs in Dwarf.h) and adds it to the ModuleCU (for simplicity I'm adding my DIEs to the module's debug_info section) I Added a few lines to Dwarf.cpp for emitting the correct name for my new DW_TAG and AT (useful when looking at commented assembly) Finally, in AsmPrinter::processDebugLoc() I grab the metadata from the MachineInstr an...

Hi Roger, On Mon, Aug 23, 2010 at 4:01 PM, Roger Wang <innit42 at gmail.com> wrote: > Dear all, > > I'd like to find the memory location of certain instructions in a > compiled/linked binary. During the IR phase, I tag instructions I'm > interested in with LLVM'-2.7's new metadata (MDNodes with an identifiable > ID). I'd now like to propagate that data

Dear all, I'd like to find the memory location of certain instructions in a compiled/linked binary. During the IR phase, I tag instructions I'm interested in with LLVM'-2.7's new metadata (MDNodes with an identifiable ID). I'd now like to propagate that data to the assembly via a custom DWARF tag I attach to each X86 instruction created from a tagged IR instruction. This will