[PATCH] D115485: [DwarfDebug] Prioritise DWARF filename in debuginfo over MC Target Options

[David Blaikie via Phabricator via llvm-commits]

dblaikie added a comment.

I /think/ this is the wrong direction.

"split dwarf file" is meant to be the name that goes in the dwo_name
"split dwarf output" is the name of the actual output file, and doesn't have to be the same as the "split dwarf file".

I guess currently this is only exposed in -cc1/llc/etc, and not in the clang driver (the only thing that causes split dwarf file/output to differ.

At the LLVM level in this patch, if you want the physical file to be something other than `SplitDwarfFile`, then that can be achieved by creating a different/non-null raw_pwrite_stream for the DwoOS parameter here: https://github.com/llvm/llvm-project/blob/bebfbfd4a82573e27171b4adf239c9804fa6d656/clang/lib/CodeGen/BackendUtil.cpp#L1075


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https://reviews.llvm.org/D115485