[PATCH] D57909: [WebAssembly] Handle mismatched signatures more gracefully

[Sam Clegg via Phabricator via llvm-commits]

sbc100 created this revision.
Herald added subscribers: llvm-commits, dexonsmith, steven_wu, sunfish, aheejin, jgravelle-google, mehdi_amini, dschuff.
Herald added a project: LLVM.

Previously we could emit a warning and generate a potentially invalid
wasm module (due to call sites and functions having conflicting
signatures).  Now, rather than create invalid binaries we handle such
cases by creating stub functions containing unreachable, effectively
turning these into runtime errors rather than validation failures.


Repository:
  rLLD LLVM Linker

https://reviews.llvm.org/D57909

Files:
  test/wasm/archive-weak-undefined.ll
  test/wasm/cxx-mangling.ll
  test/wasm/lto/signature-mismatch.ll
  test/wasm/lto/weak-undefined.ll
  test/wasm/signature-mismatch-weak.ll
  test/wasm/signature-mismatch.ll
  test/wasm/undefined-weak-call.ll
  wasm/Config.h
  wasm/Driver.cpp
  wasm/Options.td
  wasm/SymbolTable.cpp
  wasm/SymbolTable.h
  wasm/Symbols.h

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