[PATCH] D52634: [WIP] [WebAssembly] Add DBG_VALUE with local operands location in WebAssemblyExplicitLocals pass

[Yury Delendik via Phabricator via llvm-commits]

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In D52634#1293526 <https://reviews.llvm.org/D52634#1293526>, @aprantl wrote:

> Can you explain how this new operation is meant to work?


@aprantl, here is some description of what we are trying to achieve: https://github.com/WebAssembly/debugging/issues/1#issuecomment-448237641

In the nutshell, the WebAssembly extensions for the DWARF expression will allow us to express WebAssembly specific locations such as for locals <http://webassembly.github.io/spec/core/syntax/modules.html#syntax-func>, globals <http://webassembly.github.io/spec/core/syntax/modules.html#globals> and operands stack <http://webassembly.github.io/spec/core/syntax/instructions.html#syntax-expr>. The consumers of this information will be limited to LLVM tools, web browser debuggers and AOT/JIT WebAssembly compilers.


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  rL LLVM

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