Sebastian Pop a1f20fcc96 HotColdSplitting: check that target supports cold calling convention ...

Before tagging a function with coldcc make sure the target supports cold calling
convention. Without this patch HotColdSplitting pass fails on aarch64 with:

  fatal error: error in backend: Unsupported calling convention.

llvm-svn: 341838

2018-09-10 15:08:02 +00:00

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