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In theory we should be emitting LLVM align <n> attributes (https://llvm.org/docs/LangRef.html#attr-align) for references, since they're always aligned.
However, it turns out that these get inlined as assume calls, which (per the HACK comment in the code) block other optimizations, so they're currently disabled.
-Z flag was added in #49122
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Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.Area: Code generationCategory: An issue tracking the progress of sth. like the implementation of an RFCIssue: Problems and improvements with respect to performance of generated code.Relevant to the compiler team, which will review and decide on the PR/issue.