57fb2a05a2
In the JIT, this PP is saved and restored in stub's Dart frame. In AOT, Dart frames do not save PP because it is a global register within Dart code. On other architectures, PP is a preserved register in the C ABI. TEST=ci Bug: https://github.com/dart-lang/sdk/issues/48333 Bug: https://github.com/dart-lang/sdk/issues/48354 Change-Id: I1b6702805a6fb556a1695197e40a89c364af3f8f Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/232520 Reviewed-by: Alexander Markov <alexmarkov@google.com> Commit-Queue: Ryan Macnak <rmacnak@google.com>