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943d3e07f8
We currently have to insert bits via a temporary variable of the same size as the target with various shift/mask stages, resulting in further temporary variables, all of which require the allocation of memory for large APInts (MaskSizeInBits > 64). This is another of the compile time issues identified in PR32037 (see also D30265). This patch adds the APInt::insertBits() helper method which avoids the temporary memory allocation and masks/inserts the raw bits directly into the target. Differential Revision: https://reviews.llvm.org/D30780 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297458 91177308-0d34-0410-b5e6-96231b3b80d8 |
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