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73046581a3
Summary: There are quite a few places in the code base that do something like the following to set the high or low bits in an APInt. KnownZero |= APInt::getHighBitsSet(BitWidth, BitWidth - 1); For BitWidths larger than 64 this creates a short lived APInt with malloced storage. I think it might even call malloc twice. Its better to just provide methods that can set the necessary bits without the temporary APInt. I'll update usages that benefit in a separate patch. Reviewers: majnemer, MatzeB, davide, RKSimon, hans Reviewed By: hans Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D30525 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297111 91177308-0d34-0410-b5e6-96231b3b80d8 |
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