[PATCH] D64109: Standardize on MSVC behavior for triples with no environment

[Reid Kleckner via Phabricator via llvm-commits]

rnk created this revision.
rnk added a reviewer: compnerd.
Herald added subscribers: dexonsmith, hiraditya.
Herald added a project: LLVM.

This makes it so that IR files using triples without an environment work
out of the box, without normalizing them.

Typically, the MSVC behavior is more desirable. For example, it tends to
enable things like constant merging, use of associative comdats, etc.

Addresses PR42491


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D64109

Files:
  llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
  llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
  llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
  llvm/lib/IR/Mangler.cpp
  llvm/lib/MC/MCWinCOFFStreamer.cpp
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/lib/Target/X86/X86Subtarget.h
  llvm/test/CodeGen/X86/win_cst_pool.ll
  llvm/unittests/ADT/TripleTest.cpp

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