Anton Korobeynikov

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[SR-15823] [AutoDiff] Runtime segfault from edge case

Thanks! I'd rather not close issues simply because "does not crash anymore" and instead try to check what changed, especially if some analysis was done before.

[SR-15985] [AutoDiff] Specific custom VJP triggers assertion "internal/private function cannot be serialized"

So, here is the function in question: ```llvm // reverse-mode derivative of SIMD.sum() sil hidden [thunk] [always_inline] [ossa] @$ss4SIMDPsSF6ScalarRpzrlE3sumADyFsAARz16_Differentiation14DifferentiableRzSfACs11SIMDStoragePRtzlTJrSpSr : $@convention(method) (@in_guaranteed τ_0_0) -> (@out Float, @owned @callee_guaranteed @substituted (@in_guaranteed...

Ensure we are using mapped SIL type for switch_enum case and not the original lowered one

@swift-ci please test

Ensure we are using mapped SIL type for switch_enum case and not the original lowered one

Tagging @fibrechannelscsi

Ensure we are using mapped SIL type for switch_enum case and not the original lowered one

@swift-ci please test

Ensure we are using mapped SIL type for switch_enum case and not the original lowered one

@swift-ci please test

Ensure we are using mapped SIL type for switch_enum case and not the original lowered one

After few hours of experiments, I think I ended with smaller reproducer. Note that it needs to be used with *disabled* SIL verifier (-Xllvm -verify-continue-on-failure) due to exactly same issue...

Ensure we are using mapped SIL type for switch_enum case and not the original lowered one

@swift-ci please test

Changing time slot for the IWG meeting?

On the other hand it's pretty important not to split the attendees, so we won't have different people in different timezones

Send RFC to LLVM to gather requirements before disabling -commits lists

I just checked and it seems at least emails on llvm-bugs ML is opened by 1-2k users daily.