llvm-project

47e4282c - [libunwind][Apple] Improve test coverage on Apple platforms (#186423)

[libunwind][Apple] Improve test coverage on Apple platforms (#186423) Introduces a macro abstraction around capturing the bounds of a function, which many platforms handle subtly differently (Mach-O, and ELF, for example). Also introduce an arm64[^-]* -> aarch64 available feature, to enable more tests that would otherwise be excluded on Apple platforms, whose target triples tend to take the form e.g. 'arm64-apple-macosx', rather than 'aarch64-apple-macosx'. Third, we implement the has-sme check using the appropriate sysctl, as getauxval is not available on Darwin platforms.