[all-commits] [llvm/llvm-project] 4ae575: [WebAssembly] Deduplicate imports of the same modu...

[Nick Fitzgerald via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4ae575b9997e0903d1c2ec01a43e3f3f2db5df16
      https://github.com/llvm/llvm-project/commit/4ae575b9997e0903d1c2ec01a43e3f3f2db5df16
  Author: Nick Fitzgerald <fitzgen at gmail.com>
  Date:   2021-07-19 (Mon, 19 Jul 2021)

  Changed paths:
    A lld/test/wasm/duplicate-function-imports.s
    A lld/test/wasm/duplicate-global-imports.s
    A lld/test/wasm/duplicate-table-imports.s
    M lld/wasm/SyntheticSections.cpp
    M lld/wasm/SyntheticSections.h
    M llvm/include/llvm/BinaryFormat/Wasm.h
    M llvm/include/llvm/BinaryFormat/WasmTraits.h

  Log Message:
  -----------
  [WebAssembly] Deduplicate imports of the same module name, field name, and type

When two symbols import the same thing, only one import should be emitted in the Wasm file.

Fixes https://bugs.llvm.org/show_bug.cgi?id=50938

Reviewed By: sbc100

Differential Revision: https://reviews.llvm.org/D105519