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Misc #131
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Misc #131
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…ifyCFG." This reverts commit 8381d3e.
The MergeFunctions pass was originally intended to emit aliases instead of thunks where possible (unnamed_addr). However, for a long time this functionality was behind a flag hardcoded to false, bitrotted and was eventually removed in r309313. Originally the functionality was first disabled in r108417 due to lack of support for aliases in Mach-O. I believe that this is no longer the case nowadays, but not really familiar with this area. In the interest of being conservative, this patch reintroduces the aliasing functionality behind a default disabled -mergefunc-use-aliases flag. Differential Revision: https://reviews.llvm.org/D53285 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@347407 91177308-0d34-0410-b5e6-96231b3b80d8
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fixLLVM_ERROR when building serde_json in release + debuginfo mode rust#56265. An upstream patch is in the works, but it may take a while until the correct semantics are figured out. In the meantime we can safely revert this.fixrustc beta (1.28.0) generates unnecessary call instruction rust#52651. This is not time critical, but also safe to include here, because it requires code on the rustc side to enable.Edit: Use
fixto avoid auto-closing issues -- did GitHub get a lot more aggressive about this?