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Tess Strickland 3f53d22d43 [vm/compiler] Create leaf runtime entry for memmove. 
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>
2023-09-11 21:25:09 +00:00
..
bin [build] Export all symbols for the sanitizers. 2023-09-07 15:03:08 +00:00
docs Revert "Reland "[vm, gc] Mark through new-space."" 2023-08-28 14:34:21 +00:00
include [vm] Separate for-snapshot vs embed-sources bools when compiling to kernel 2023-07-28 10:01:53 +00:00
lib [vm/compiler] Create leaf runtime entry for memmove. 2023-09-11 21:25:09 +00:00
observatory [vm] Treat Future.then(..., onError:...) as catch all handler 2023-08-31 11:47:54 +00:00
observatory_2 [infra] Use actual package names in the generated package config. 2023-08-28 10:29:48 +00:00
platform Revert "Reland "[vm, gc] Mark through new-space."" 2023-08-28 14:34:21 +00:00
tests [vm/compiler] Improve integer equality comparisons 2023-09-11 07:56:47 +00:00
third_party Spelling pkg analyzer lib 2023-01-25 14:08:27 +00:00
tools [vm] Use specialized int set in heap snapshot tool 2023-09-11 10:48:46 +00:00
vm [vm/compiler] Create leaf runtime entry for memmove. 2023-09-11 21:25:09 +00:00
.clang-tidy
.gitignore
BUILD.gn Add a GN flag for the non-debug optimization level 2023-07-15 14:14:59 +00:00
codereview.settings
configs.gni [Runtime] Add extra_product_deps and extra_nonproduct_deps params to "library_for_all_configs_with_compiler" template 2023-04-14 19:51:40 +00:00
CPPLINT.cfg [cpplint] Disable runtime/references lint 2023-01-23 18:21:48 +00:00
OWNERS
PRESUBMIT.py Reland "Reland "[VM] Begin supporting Perfetto file recorder"" 2023-04-18 19:39:05 +00:00
runtime_args.gni Add a GN flag for the non-debug optimization level 2023-07-15 14:14:59 +00:00