llvm-project

51a3bc12 - [ThinLTO]Clean up 'import-assume-unique-local' flag. (#102424)

[ThinLTO]Clean up 'import-assume-unique-local' flag. (#102424) While manual compiles can specify full file paths and build automation tools use full, unique paths in practice, it's not clear whether it's a general good practice to enforce full paths (fail a build if relative paths are used). `NumDefs == 1` condition [1] should hold true for many internal-linkage vtables as long as full paths are indeed used to salvage the marginal performance when local-linkage vtables are imported due to indirect reference. https://github.com/llvm/llvm-project/pull/100448#discussion_r1692068402 has more details. [1] https://github.com/llvm/llvm-project/pull/100448/files#diff-e7cb370fee46f0f773f2b5429dfab36b75126d3909ae98ee87ff3d0e3f75c6e9R215