[all-commits] [llvm/llvm-project] a57f1a: [lld][WebAssembly] Handle mixed strong and weak un...

[Sam Clegg via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: a57f1a543570fbccfa44c38909bc66b66e9f1c2f
      https://github.com/llvm/llvm-project/commit/a57f1a543570fbccfa44c38909bc66b66e9f1c2f
  Author: Sam Clegg <sbc at chromium.org>
  Date:   2020-02-28 (Fri, 28 Feb 2020)

  Changed paths:
    A lld/test/wasm/Inputs/weak-undefined.s
    A lld/test/wasm/weak-and-strong-undef.s
    M lld/wasm/SymbolTable.cpp
    M lld/wasm/Symbols.h
    M lld/wasm/SyntheticSections.cpp

  Log Message:
  -----------
  [lld][WebAssembly] Handle mixed strong and weak undefined symbols

When there are both strong and weak references to an undefined
symbol ensure that the strong reference prevails in the output symbol
generating the correct error.

Test case copied from lld/test/ELF/weak-and-strong-undef.s

Differential Revision: https://reviews.llvm.org/D75322