forked from OSchip/llvm-project
7ced04c0fd
If an HVX vector register is to be coalesced into a vector pair, make sure that the vector pair will not have a function call in its live range, unless it already had one. All HVX vector registers are volatile, so any vector register live across a function call will have to be spilled. If a vector needs to be spilled, and it's coalesced into a vector pair then the whole pair will need to be spilled (even if only a part of it is live), taking extra stack space. llvm-svn: 337073 |
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