[all-commits] [llvm/llvm-project] 6851dc: Merging r375077:

[Sam Clegg via All-commits]

  Branch: refs/heads/release/9.x
  Home:   https://github.com/llvm/llvm-project
  Commit: 6851dcc0abf77a3fa7acb0bd206a5297ce8ac6de
      https://github.com/llvm/llvm-project/commit/6851dcc0abf77a3fa7acb0bd206a5297ce8ac6de
  Author: Sam Clegg <sbc at chromium.org>
  Date:   2019-11-07 (Thu, 07 Nov 2019)

  Changed paths:
    M lld/test/wasm/archive-weak-undefined.ll
    M lld/wasm/InputFiles.cpp

  Log Message:
  -----------
  Merging r375077:

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r375077 | sbc | 2019-10-16 20:21:02 -0700 (Wed, 16 Oct 2019) | 10 lines

[lld][WebAssembly] Fix for weak references to data symbols in archives

Fix a bug where were not handling relocations against weakly undefined
data symbol.  Add a test for this case.  Also ensure that the weak
references to data symbols are not pulled in from archive files by
default (but are if `-u <name>` is added to the command line).

Fixes: PR43696

Differential Revision: https://reviews.llvm.org/D69073
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