Julia 1.13: JIT fails with missing `julia.atomicmodify` intrinsics — `locks` and `threads` tests crash

[vchuravy]

Summary

Julia 1.13 introduced new julia.atomicmodify.* JIT intrinsics. When Enzyme's JIT pipeline encounters these symbols, it cannot resolve them, causing a JIT session error followed by an assertion failure in LLVM's ForwardingMemoryManager.

Error

JIT session error: Symbols not found: [ julia.atomicmodify.i64.p0, julia.atomicmodify.i64.p11 ]
ForwardingMemoryManager::~ForwardingMemoryManager(): Assertion '!MemMgr' failed.

Process exits with signal 6 (SIGABRT).

Affected tests

• locks — crashes at test/locks.jl:12
• threads and threads/2 — worker process terminates (Malt.TerminatedWorkerException)

Notes

• From test_1.13-dev.log
• Enzyme's JIT needs to register handlers or pass-throughs for the new julia.atomicmodify.* intrinsic family introduced in Julia 1.13.

[vchuravy]

Fixed by #3225