vm/cc/Assembler_Drop fails on vm-mac-debug-arm64, vm-win-debug-arm64 bots

[aam]

From https://ci.chromium.org/ui/p/dart/builders/ci.sandbox/vm-kernel-nnbd-mac-debug-arm64/1/overview

--- Command "run_vm_unittest" (took 111ms):
DART_CONFIGURATION=DebugXARM64 xcodebuild/DebugXARM64/run_vm_tests --dfe=/opt/s/w/ir/xcodebuild/DebugXARM64/gen/kernel_service.dill --ignore-unrecognized-flags Drop

exit code:
-6

stdout:
Running test: Drop

stderr:
../../runtime/vm/compiler/assembler/assembler_arm64.h: 2123: error: expected: (rd != CSP) && (rn != CSP)
version=2.14.0-edge.09fbf1ce60d3998665aef7e78ad0634c53290093 (be) (Tue Jun 22 09:18:12 2021 +0000) on "macos_arm64"
pid=25365, thread=259, isolate_group=isolate(0x13601de00), isolate=isolate(0x136036a00)
isolate_instructions=1051e3a00, vm_instructions=1051e3a00
  pc 0x00000001055328e8 fp 0x000000016af52d60 dart::Profiler::DumpStackTrace(void*)+0x68
  pc 0x0000000105304418 fp 0x000000016af52d80 dart::Assert::Fail(char const*, ...)+0x28
  pc 0x0000000105014ddc fp 0x000000016af52dc0 dart::compiler::Assembler::EmitAddSubImmOp(dart::AddSubImmOp, dart::Register, dart::Register, dart::compiler::Operand, dart::compiler::OperandSize, bool)+0x0
  pc 0x00000001058ca970 fp 0x000000016af52e20 dart::compiler::Assembler::AddImmediate(dart::Register, dart::Register, long long, dart::compiler::OperandSize)+0x190
  pc 0x00000001058cf9c4 fp 0x000000016af52e50 dart::compiler::Assembler::SetupDartSP(long)+0x60
  pc 0x000000010517cf9c fp 0x000000016af52e90 dart::compiler::AssemblerTestGenerateDrop(dart::compiler::Assembler*)+0x1c
  pc 0x000000010517d480 fp 0x000000016af53160 dart::compiler::Dart_TestHelperDrop(dart::Thread*)+0x26c
  pc 0x000000010517d15c fp 0x000000016af531f0 dart::compiler::Dart_TestDrop()+0xcc
  pc 0x0000000104f4f608 fp 0x000000016af53220 dart::TestCase::Run()+0x30
  pc 0x0000000104f4f714 fp 0x000000016af53260 dart::TestCaseBase::RunTest()+0x6c
  pc 0x0000000105094068 fp 0x000000016af53280 dart::TestCaseBase::RunAll()+0x38
  pc 0x0000000104f4fc40 fp 0x000000016af53300 dart::Main(int, char const**)+0x3bc
  pc 0x0000000104f4f880 fp 0x000000016af53310 main+0xc
  pc 0x000000019f875450 fp 0x000000016af53330 start+0x4
-- End of DumpStackTrace

--- Re-run this test:
python3 tools/test.py -n dartk-weak-asserts-mac-debug-arm64 vm/cc/Drop

[alexmarkov]

The test was renamed to vm/cc/Assembler_Drop. It still fails on vm-mac-debug-arm64 and vm-win-debug-arm64 configurations:

--- Command "run_vm_unittest" (took 39ms):
DART_CONFIGURATION=DebugARM64 xcodebuild/DebugARM64/run_vm_tests --dfe=/Volumes/Work/s/w/ir/xcodebuild/DebugARM64/gen/kernel_service.dill --sound-null-safety --ignore-unrecognized-flags Assembler_Drop

exit code:
-6

stdout:
Running test: Assembler_Drop

stderr:
../../runtime/vm/compiler/assembler/assembler_arm64.h: 2341: error: expected: (rd != CSP) && (rn != CSP)
version=3.8.0-edge (main) (Unknown timestamp) on "macos_arm64"
pid=64985, thread=259, isolate_group=isolate(0x141022000), isolate=isolate(0x141012000)
os=macos, arch=arm64, comp=no, sim=no
isolate_instructions=102ffcc80, vm_instructions=102ffcc80
fp=16ce023f0, sp=16ce023c0, pc=1038937b4
  pc 0x00000001038937b4 fp 0x000000016ce023f0 dart::Profiler::DumpStackTrace(void*)+0x68
  pc 0x00000001036124a4 fp 0x000000016ce02410 dart::Assert::Fail(char const*, ...) const+0x28
  pc 0x0000000103189d70 fp 0x000000016ce02450 dart::compiler::Assembler::AddSubHelper(dart::compiler::OperandSize, bool, bool, dart::Register, dart::Register, dart::compiler::Operand)+0x1bc
  pc 0x0000000103c8daf4 fp 0x000000016ce024b0 dart::compiler::Assembler::AddImmediate(dart::Register, dart::Register, long long, dart::compiler::OperandSize)+0x14c
  pc 0x0000000103c923b8 fp 0x000000016ce024e0 dart::compiler::Assembler::SetupDartSP(long)+0x60
  pc 0x00000001033aaab8 fp 0x000000016ce02540 dart::compiler::AssemblerTestGenerateDrop(dart::compiler::Assembler*)+0x24
  pc 0x00000001033aaf80 fp 0x000000016ce02850 dart::compiler::Dart_TestHelperAssembler_Drop(dart::Thread*)+0x1a8
  pc 0x00000001033aad04 fp 0x000000016ce02fb0 dart::compiler::Dart_TestAssembler_Drop()+0x110
  pc 0x0000000103029a78 fp 0x000000016ce02fe0 dart::TestCase::Run()+0x30
  pc 0x0000000103029b84 fp 0x000000016ce03020 dart::TestCaseBase::RunTest()+0x6c
  pc 0x00000001032bd900 fp 0x000000016ce03040 dart::TestCaseBase::RunAll()+0x38
  pc 0x0000000103029fd4 fp 0x000000016ce03120 dart::Main(int, char const**)+0x314
  pc 0x0000000103029cbc fp 0x000000016ce03130 main+0xc
  pc 0x00000001067e908c fp 0x000000016ce03280 Unknown symbol
-- End of DumpStackTrace

--- Re-run this test:
python3 tools/test.py -n vm-mac-debug-arm64 vm/cc/Assembler_Drop

--- Command "run_vm_unittest" (took 469ms):
set DART_CONFIGURATION=DebugARM64 & set DART_SUPPRESS_WER=1 & set DART_CRASHPAD_HANDLER=c:\opt\s\w\ir\cache\builder\sdk\out\DebugARM64\crashpad_handler.exe & out\DebugARM64\run_vm_tests.exe --dfe=c:\opt\s\w\ir\cache\builder\sdk\out\DebugARM64\gen\kernel_service.dill --sound-null-safety --ignore-unrecognized-flags Assembler_Drop

exit code:
3

stdout:
Running test: Assembler_Drop

stderr:
c:\opt\s\w\ir\cache\builder\sdk\runtime\vm\compiler\assembler\assembler_arm64.h: 2341: error: expected: (rd != CSP) && (rn != CSP)
version=3.8.0-edge.f534c1337f7c2e91f215ceffa51109bf5d5dbc71 (main) (Tue Feb 4 15:36:41 2025 -0800) on "windows_arm64"
pid=10768, thread=11980, isolate_group=isolate(00000129D6EC6260), isolate=isolate(00000129D6F0DDD0)
os=windows, arch=arm64, comp=no, sim=no
isolate_instructions=7ff600af3b80, vm_instructions=7ff600af3ba0
fp=9bd0feba0, sp=9bd0feba0, pc=7ff601f119fc
  pc 0x00007ff601f119fc fp 0x00000009bd0feba0 dart::Profiler::DumpStackTrace+0x1c
  pc 0x0000000000000020 fp 0x00000009bd0ff0e0 Unknown symbol
-- End of DumpStackTrace

--- Re-run this test:
python3 tools/test.py -n vm-win-debug-arm64 vm/cc/Assembler_Drop