Craig Topper 61403201ea [X86,AVX-512] Use INSERT_SUBREG instead of SUBREG_TO_REG when the input is not the output of an instruction.
SUBREG_TO_REG is supposed to indicate that the super register has been zeroed, but we can't prove that if we don't know where it came from.

llvm-svn: 281885
2016-09-19 02:53:43 +00:00
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