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LLVM backend for 6502
89576cea3f
out the per-function modref data structures when functions were deleted or when globals were deleted. I don't actually know how the global deletion side of this bug hasn't been hit before, but for the other it just-so-happens that functions aren't likely to be deleted in the particular part of the LTO pipeline where we currently enable GMR, so we got lucky. With this patch, I can self-host with GMR enabled in the normal pass pipeline! I was a bit concerned about the compile-time impact of this chang, which is part of what motivated my prior string of patches to make the per-function datastructure very dense and fast to walk. With those changes in place, I can't measure a significant compile time difference (the difference is around 0.1% which is *way* below the noise) before and after this patch when building a linked bitcode for all of Clang. Differential Revision: http://reviews.llvm.org/D11453 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243385 91177308-0d34-0410-b5e6-96231b3b80d8 |
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| README.txt | ||
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