Matthias Braun 6bbccd2516 GlobalsModRef, ValueTracking: Look through threadlocal.address intrinsic (#88418) ...

This improves handling of `threadlocal.address` intrinsic in analyses:

The thread-id cannot change within a function with the exception of
suspend points of pre-split coroutines. This changes
`llvm::getUnderlyingObject` to look through `threadlocal.address` in
these cases.

`GlobalsAAResult::AnalyzeUsesOfPointer` checks whether an address can be
traced to simple loads/stores or escapes to other places. Starting the
analysis from a thread-local `GlobalValue` the `threadlocal.address`
intrinsic is safe to skip here.

This improves issue #87437

2024-04-19 10:01:42 -07:00

42 KiB

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