[all-commits] [llvm/llvm-project] 73817e: [WebAssembly] Add funclet bundle to thread local w...

[Heejin Ahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 73817e6a9279833e53fb9ccca3158ed987c4ad61
      https://github.com/llvm/llvm-project/commit/73817e6a9279833e53fb9ccca3158ed987c4ad61
  Author: Heejin Ahn <aheejin at gmail.com>
  Date:   2026-08-03 (Mon, 03 Aug 2026)

  Changed paths:
    M clang/lib/CodeGen/ItaniumCXXABI.cpp
    M clang/test/CodeGenCXX/wasm-eh.cpp

  Log Message:
  -----------
  [WebAssembly] Add funclet bundle to thread local wrapper calls (#213826)

When accessing a thread local variable, Clang generates a thread local
wrapper function that checks if the variable has been initialized, and
if it isn't, initializes it. This is a function call, so if this is
within a funclet (i.e., within a `catchpad` or `cleanuppad`), it needs
the funclet bundle argument, which was missing before. If it lacks a
funclet argument, it will be considered invalid and removed in
WinEHPrepare.

Fixes https://github.com/emscripten-core/emscripten/issues/27448.



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