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[WebAssembly] Implement __builtin_wasm_tls_base intrinsic
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Authored by quantum on Jul 17 2019, 5:38 PM.

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rL LLVM

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quantum created this revision.Jul 17 2019, 5:38 PM
Herald added projects: Restricted Project, Restricted Project. · View Herald TranscriptJul 17 2019, 5:38 PM
aheejin accepted this revision.Jul 17 2019, 6:18 PM

What does this return when __wasm_init_tls has not been called?

This revision is now accepted and ready to land.Jul 17 2019, 6:18 PM

What does this return when __wasm_init_tls has not been called?

It returns 0, which I think is fine.

This revision was automatically updated to reflect the committed changes.
sunfish added inline comments.Jul 18 2019, 12:19 PM
cfe/trunk/include/clang/Basic/BuiltinsWebAssembly.def
34

This can also be "p" for "pure", which despite the name, just means there are no mutating side effects.