[PATCH] D70500: [WebAssembly] Enable use of wasm-opt and LTO-enabled system libraries

[bernhard via Phabricator via cfe-commits]

bernhard added a comment.

Are there plans to offer a way to disable this behavior (or have it optional in the first place)?
We'd like to run some custom processing between wasm-ld and wasm-opt which can't happen after the latter due to some of its one-way destructive optimizations (i.e. memory-packing or simplify-globals passes).
The only way now is to tell our users to place wasm-opt somewhere where clang can't find it. Or instead of using one clang super-command to manually call -cc1 and wasm-ld separately which is disappointing.

Also, is it even common to place wasm-opt next to the clang executable? Who is this for? Is this documented?
I only stumbled into this by pure luck and was very confused for a while until I ran with -v.


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https://reviews.llvm.org/D70500