[PATCH] D137551: [WebAssembly] Use default attributes for intrinsics

[Nikita Popov via Phabricator via llvm-commits]

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This switches wasm intrinsics to use default attributes, i.e. nofree, nosync, nocallback and willreturn. Especially willreturn is required to avoid optimization regressions in the future.

The attributes are omitted from the trapping fptoi intrinsics (where I assume trapping is considered well-defined, and as such these aren't willreturn) and the atomic intrinsics, which aren't nosync


https://reviews.llvm.org/D137551

Files:
  llvm/include/llvm/IR/IntrinsicsWebAssembly.td
  llvm/test/CodeGen/WebAssembly/lower-wasm-ehsjlj.ll

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