[PATCH] D62913: llvm-lib: Disallow mixing object files with different machine types

[Nico Weber via Phabricator via llvm-commits]

thakis created this revision.
thakis added a reviewer: pcc.
Herald added subscribers: hiraditya, javed.absar, mgorny.
Herald added a project: LLVM.

lib.exe doesn't allow creating .lib files with object files that have
differing machine types. Update llvm-lib to match.

The motivation is to make it possible to infer the machine type of a
.lib file in lld, so that it can warn when e.g. a 32-bit .lib file is
passed to a 64-bit link (PR38965).

Fixes PR38782.


https://reviews.llvm.org/D62913

Files:
  llvm/lib/ToolDrivers/llvm-lib/CMakeLists.txt
  llvm/lib/ToolDrivers/llvm-lib/LLVMBuild.txt
  llvm/lib/ToolDrivers/llvm-lib/LibDriver.cpp
  llvm/test/tools/llvm-lib/Inputs/arm64.ll
  llvm/test/tools/llvm-lib/Inputs/i386.ll
  llvm/test/tools/llvm-lib/Inputs/x86_64.ll
  llvm/test/tools/llvm-lib/machine-mismatch.test
  llvm/utils/gn/secondary/llvm/lib/ToolDrivers/llvm-lib/BUILD.gn

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