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The change you have in mind is MemorySSA-based memcpy optimization, which is indeed not enabled in LLVM 12 (but is enabled in Rust).
by nikic 5y ago
The change you have in mind is MemorySSA-based memcpy optimization, which is indeed not enabled in LLVM 12 (but is enabled in Rust).
- adrian17 5y ago...oh, yeah, I saw "now uses MemorySSA" and immediately thought of the memcpy optimization pass, without carefully reading the entire comment - my bad.