Do macOS ARM toolchains have assertions enabled?

taylorswift · 2024-03-18T22:27:26.561Z

i am running into an SIL assertion failure (in the swift-unidoc repository) that occurs only on macOS.

error: compile command failed due to signal 6 (use -v to see invocation)
SIL verification failed: cast cannot be used to remove move only wrapped?!: UI->getOperand()->getType().isMoveOnlyWrapped() == UI->getType().isMoveOnlyWrapped()

i cannot reproduce the compiler crash on linux, and i do not own a macOS computer i can use to reduce it to a fileable issue.

but before diving into a strategy for solving this, i am first confused as to why i am encountering an SIL verification failure on a release toolchain (https://download.swift.org/swift-5.10-release/xcode/swift-5.10-RELEASE/swift-5.10-RELEASE-osx.pkg ) in the first place, as i thought those were supposed to be disabled?

taylorswift · 2024-03-21T22:26:08.268Z

so based on slack discussion, the downloadable 5.10 toolchain does indeed have assertions enabled, and it is required to have Xcode 15.3 installed in order to use the Xcode-provided toolchain, which does not have assertions enabled.

since it is not always possible to install the latest Xcode version (e.g, in CI environment), i am interested in obtaining an assertionless 5.10 toolchain for macOS. does such a thing exist?