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Mike Ash 85c1111516 [LLVMPasses] Don't move retains and releases past *_n calls in SwiftARCOpt.

performLocalReleaseMotion and performLocalRetainMotion handled the *_n entry points with a `break`, which leaves the switch but keeps the scan going, so a release or retain was moved past them as if they didn't touch reference counts. Stop the scan at them instead.

Embedded Swift could hit this because its runtime entry points are defined in Swift and visible to LLVM's inliner. Then e.g. swift_bridgeObjectRetain could be inlined into a caller as a call to swift_bridgeObjectRetain_n(p, 1), and a following swift_release(p) could be hoisted above it.

2026-10-14 11:29:52 -04:00

ARCEntryPointBuilder.h

Merge remote-tracking branch 'origin/main' into rebranch

2025-07-22 22:17:45 -07:00

CMakeLists.txt

IRGen: Add metadata for async funclets denoting frame entry and frame exists

2024-09-03 08:44:16 -07:00

LLVMARCContract.cpp

[LLVMPasses] Limit merged retain_n and release_n calls to 256 each.

2026-09-29 15:54:14 -04:00

LLVMARCOpts.cpp

[LLVMPasses] Don't move retains and releases past *_n calls in SwiftARCOpt.