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3f53d22d43
Instead of making a StaticCall to _TypedListBase.nativeSetRange
inside _memMoveN, make a CCall to the memmove leaf runtime entry.
Rename _TypedListBase._nativeSetRange to _setClampedRange, since
it's now only used when per-element clamping is necessary.
Fix the load optimizer so that loads of unboxed fields from freshly
allocated objects do not have the tagged null value forwarded
as their initial post-allocation value.
TEST=co19{,_2}/LibTest/typed_data lib{,_2}/typed_data
corelib{,_2}/list_test
vm/cc/LoadOptimizer_LoadDataFieldOfNewTypedData
Issue: https://github.com/dart-lang/sdk/issues/42072
Change-Id: Ib82e24a5b3287fa53099fffd3b563a27d777507e
Cq-Include-Trybots: luci.dart.try:vm-aot-linux-debug-simarm_x64-try,vm-aot-linux-debug-x64-try,vm-aot-linux-debug-x64c-try,vm-kernel-linux-debug-x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-linux-debug-x64-try,vm-linux-debug-x64c-try,vm-mac-debug-arm64-try,vm-aot-linux-release-simarm_x64-try,vm-aot-linux-release-x64-try,vm-aot-mac-release-arm64-try,vm-aot-msan-linux-release-x64-try,vm-msan-linux-release-x64-try,vm-aot-tsan-linux-release-x64-try,vm-tsan-linux-release-x64-try,vm-linux-release-x64-try,vm-mac-release-arm64-try,vm-kernel-precomp-linux-release-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/324080
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Tess Strickland <sstrickl@google.com>
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