[clang] [PowerPC][CLANG] DMF VSX Vector float GER 2x (rank-2 update) (PR #147383)

[Lei Huang via cfe-commits]

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+// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --version 5
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lei137 wrote:

I actually did this deliberately as I thought since these tests contain 3x the number of lines then `builtins-ppc-dmf.c` it's better to have a separate file named explicitly for the tests it contains.  If I was only adding a couple of builtins then I would add to that file.

https://github.com/llvm/llvm-project/pull/147383