Reid Kleckner 86b5c3a844 Triple: Make setEnvironment not override the object format ...

Discovered by Halide users who had C++ code like this:
  Triple.setArch(Triple::x86);
  Triple.setOS(Triple::Windows);
  Triple.setObjectFormat(Triple::ELF);
  Triple.setEnvironment(Triple::MSVC);

This would produce the stringified triple of x86-windows-msvc, instead
of the x86-windows-msvc-elf string needed to run MCJIT.

With this change, they retain the -elf suffix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229160 91177308-0d34-0410-b5e6-96231b3b80d8

2015-02-13 22:05:50 +00:00

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