[llvm-dev] Should DISubprogram's scope be allowed to be null?

Diego Novillo via llvm-dev llvm-dev at lists.llvm.org
Mon Jan 18 10:54:29 PST 2016


On Fri, Jan 15, 2016 at 11:24 AM, David Blaikie <dblaikie at gmail.com> wrote:


> Diego: To include line/col info for backend diagnostics, we produced debug
> info but omitted the llvm.dbg.cu entry, right? So there are subprogram
> debug info descriptions that are not referenced from a CU in llvm.dbg.cu,
> yes?
>

Yes, that and for sample PGO.  Omitting llvm.dbg.cu prevents codegen from
emitting all that debug info to the final binary.
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