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Move urInit into piPluginInit #12

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merged 1 commit into from
May 24, 2023
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@bmyates bmyates commented May 23, 2023

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Signed-off-by: Brandon Yates <[email protected]>
@jandres742
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@bmyates : please rebase

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bmyates commented May 24, 2023

@jandres742 rebase complete

@jandres742 jandres742 merged this pull request into jandres742:url0 May 24, 2023
jandres742 pushed a commit that referenced this pull request Oct 1, 2023
This crash was exposed recently in our randomized testing. _BitInts were
not being handled properly during IntegerLiteral visitation. This patch
addresses the problem for now.

The BitIntType has no getKind() method, so the FoldingSetID is taken
from the APInt value representing the _BitInt(), similar to other
methods in StmtProfile.cpp.

Crash seen (summary form):

clang-tidy: <src-root>/llvm/include/llvm/Support/Casting.h:566:
decltype(auto) llvm::cast(const From&) [with To = clang::BuiltinType;
From = clang::QualType]: Assertion `isa<To>(Val) && "cast<Ty>() argument
of incompatible type!"' failed

```
  #9 <address> decltype(auto) llvm::cast<clang::BuiltinType,
       clang::QualType>(clang::QualType const&)
       <src-root>/llvm/include/llvm/Support/Casting.h:566:3
 #10 <address> clang::BuiltinType const* clang::Type::castAs<clang::BuiltinType>() const
       <bin-root>/tools/clang/include/clang/AST/TypeNodes.inc:86:1
 #11 <address> (anonymous namespace)::StmtProfiler::VisitIntegerLiteral(
       clang::IntegerLiteral const*)
       <src-root>/clang/lib/AST/StmtProfile.cpp:1362:64
 #12 <address> clang::StmtVisitorBase<llvm::make_const_ptr,
       (anonymous namespace)::StmtProfiler, void>::Visit(clang::Stmt const*)
       <src-root>/clang/include/clang/AST/StmtNodes.inc:1225:1
```

Reviewed By: donat.nagy
jandres742 pushed a commit that referenced this pull request Oct 13, 2023
…rtzext x))) -> (assertzext x) fold"

This reverts commit 05926a5.

Caused AArch64 crash

 #12 0x00007f09eec09181 skipExtensionForVectorMULL(llvm::SDNode*, llvm::SelectionDAG&)
 intel#13 0x00007f09eec08289 llvm::AArch64TargetLowering::LowerMUL(llvm::SDValue, llvm::SelectionDAG&) const
 intel#14 0x00007f09eec1a3fd llvm::AArch64TargetLowering::LowerOperation(llvm::SDValue, llvm::SelectionDAG&) const
 intel#15 0x00007f09dc8586a7 (anonymous namespace)::VectorLegalizer::LowerOperationWrapper(llvm::SDNode*, llvm::SmallVectorImpl<llvm::SDValue>&)
jandres742 pushed a commit that referenced this pull request Nov 8, 2023
…tePluginObject

After llvm/llvm-project#68052 this function changed from returning
a nullptr with `return {};` to returning Expected and hitting `llvm_unreachable` before it could
do so.

I gather that we're never supposed to call this function, but on Windows we actually do call
this function because `interpreter->CreateScriptedProcessInterface()` returns
`ScriptedProcessInterface` not `ScriptedProcessPythonInterface`. Likely because
`target_sp->GetDebugger().GetScriptInterpreter()` also does not return a Python related class.

The previously XFAILed test crashed with:
```
 # .---command stderr------------
 # | PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
 # | Stack dump:
 # | 0.  Program arguments: c:\\users\\tcwg\\david.spickett\\build-llvm\\bin\\lldb-test.exe ir-memory-map C:\\Users\\tcwg\\david.spickett\\build-llvm\\tools\\lldb\\test\\Shell\\Expr\\Output\\TestIRMemoryMapWindows.test.tmp C:\\Users\\tcwg\\david.spickett\\llvm-project\\lldb\\test\\Shell\\Expr/Inputs/ir-memory-map-basic
 # | 1.  HandleCommand(command = "run")
 # | Exception Code: 0xC000001D
 # | #0 0x00007ff696b5f588 lldb_private::ScriptedProcessInterface::CreatePluginObject(class llvm::StringRef, class lldb_private::ExecutionContext &, class std::shared_ptr<class lldb_private::StructuredData::Dictionary>, class lldb_private::StructuredData::Generic *) C:\Users\tcwg\david.spickett\llvm-project\lldb\include\lldb\Interpreter\Interfaces\ScriptedProcessInterface.h:28:0
 # | #1 0x00007ff696b1d808 llvm::Expected<std::shared_ptr<lldb_private::StructuredData::Generic> >::operator bool C:\Users\tcwg\david.spickett\llvm-project\llvm\include\llvm\Support\Error.h:567:0
 # | #2 0x00007ff696b1d808 lldb_private::ScriptedProcess::ScriptedProcess(class std::shared_ptr<class lldb_private::Target>, class std::shared_ptr<class lldb_private::Listener>, class lldb_private::ScriptedMetadata const &, class lldb_private::Status &) C:\Users\tcwg\david.spickett\llvm-project\lldb\source\Plugins\Process\scripted\ScriptedProcess.cpp:115:0
 # | #3 0x00007ff696b1d124 std::shared_ptr<lldb_private::ScriptedProcess>::shared_ptr C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1478:0
 # | #4 0x00007ff696b1d124 lldb_private::ScriptedProcess::CreateInstance(class std::shared_ptr<class lldb_private::Target>, class std::shared_ptr<class lldb_private::Listener>, class lldb_private::FileSpec const *, bool) C:\Users\tcwg\david.spickett\llvm-project\lldb\source\Plugins\Process\scripted\ScriptedProcess.cpp:61:0
 # | #5 0x00007ff69699c8f4 std::_Ptr_base<lldb_private::Process>::_Move_construct_from C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1237:0
 # | #6 0x00007ff69699c8f4 std::shared_ptr<lldb_private::Process>::shared_ptr C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1534:0
 # | #7 0x00007ff69699c8f4 std::shared_ptr<lldb_private::Process>::operator= C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1594:0
 # | #8 0x00007ff69699c8f4 lldb_private::Process::FindPlugin(class std::shared_ptr<class lldb_private::Target>, class llvm::StringRef, class std::shared_ptr<class lldb_private::Listener>, class lldb_private::FileSpec const *, bool) C:\Users\tcwg\david.spickett\llvm-project\lldb\source\Target\Process.cpp:396:0
 # | #9 0x00007ff6969bd708 std::_Ptr_base<lldb_private::Process>::_Move_construct_from C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1237:0
 # | #10 0x00007ff6969bd708 std::shared_ptr<lldb_private::Process>::shared_ptr C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1534:0
 # | #11 0x00007ff6969bd708 std::shared_ptr<lldb_private::Process>::operator= C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1594:0
 # | #12 0x00007ff6969bd708 lldb_private::Target::CreateProcess(class std::shared_ptr<class lldb_private::Listener>, class llvm::StringRef, class lldb_private::FileSpec const *, bool) C:\Users\tcwg\david.spickett\llvm-project\lldb\source\Target\Target.cpp:215:0
 # | intel#13 0x00007ff696b13af0 std::_Ptr_base<lldb_private::Process>::_Ptr_base C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1230:0
 # | intel#14 0x00007ff696b13af0 std::shared_ptr<lldb_private::Process>::shared_ptr C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1524:0
 # | intel#15 0x00007ff696b13af0 lldb_private::PlatformWindows::DebugProcess(class lldb_private::ProcessLaunchInfo &, class lldb_private::Debugger &, class lldb_private::Target &, class lldb_private::Status &) C:\Users\tcwg\david.spickett\llvm-project\lldb\source\Plugins\Platform\Windows\PlatformWindows.cpp:495:0
 # | intel#16 0x00007ff6969cf590 std::_Ptr_base<lldb_private::Process>::_Move_construct_from C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1237:0
 # | intel#17 0x00007ff6969cf590 std::shared_ptr<lldb_private::Process>::shared_ptr C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1534:0
 # | intel#18 0x00007ff6969cf590 std::shared_ptr<lldb_private::Process>::operator= C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1594:0
 # | intel#19 0x00007ff6969cf590 lldb_private::Target::Launch(class lldb_private::ProcessLaunchInfo &, class lldb_private::Stream *) C:\Users\tcwg\david.spickett\llvm-project\lldb\source\Target\Target.cpp:3274:0
 # | intel#20 0x00007ff696fff82c CommandObjectProcessLaunch::DoExecute(class lldb_private::Args &, class lldb_private::CommandReturnObject &) C:\Users\tcwg\david.spickett\llvm-project\lldb\source\Commands\CommandObjectProcess.cpp:258:0
 # | intel#21 0x00007ff696fab6c0 lldb_private::CommandObjectParsed::Execute(char const *, class lldb_private::CommandReturnObject &) C:\Users\tcwg\david.spickett\llvm-project\lldb\source\Interpreter\CommandObject.cpp:751:0
 # `-----------------------------
 # error: command failed with exit status: 0xc000001d
```

That might be a bug on the Windows side, or an artifact of how our build is setup,
but whatever it is, having `CreatePluginObject` return an error and
the caller check it, fixes the failing test.

The built lldb can run the script command to use Python, but I'm not sure if that means
anything.
jandres742 pushed a commit that referenced this pull request Nov 22, 2023
…ooking options for a custom subcommand (#71975)

…ooking options for a custom subcommand. (#71776)"

This reverts commit b88308b.

The build-bot is unhappy
(https://lab.llvm.org/buildbot/#/builders/186/builds/13096),
`GroupingAndPrefix` fails after `TopLevelOptInSubcommand` (the newly
added test).

Revert while I look into this (might be related with test sharding but
not sure)

```

[----------] 3 tests from CommandLineTest
[ RUN      ] CommandLineTest.TokenizeWindowsCommandLine2
[       OK ] CommandLineTest.TokenizeWindowsCommandLine2 (0 ms)
[ RUN      ] CommandLineTest.TopLevelOptInSubcommand
[       OK ] CommandLineTest.TopLevelOptInSubcommand (0 ms)
[ RUN      ] CommandLineTest.GroupingAndPrefix
 #0 0x00ba8118 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x594118)
 #1 0x00ba5914 llvm::sys::RunSignalHandlers() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x591914)
 #2 0x00ba89c4 SignalHandler(int) (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x5949c4)
 #3 0xf7828530 __default_sa_restorer /build/glibc-9MGTF6/glibc-2.31/signal/../sysdeps/unix/sysv/linux/arm/sigrestorer.S:67:0
 #4 0x00af91f0 (anonymous namespace)::CommandLineParser::ResetAllOptionOccurrences() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x4e51f0)
 #5 0x00af8e1c llvm::cl::ResetCommandLineParser() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x4e4e1c)
 #6 0x0077cda0 (anonymous namespace)::CommandLineTest_GroupingAndPrefix_Test::TestBody() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x168da0)
 #7 0x00bc5adc testing::Test::Run() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x5b1adc)
 #8 0x00bc6cc0 testing::TestInfo::Run() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x5b2cc0)
 #9 0x00bc7880 testing::TestSuite::Run() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x5b3880)
#10 0x00bd7974 testing::internal::UnitTestImpl::RunAllTests() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x5c3974)
#11 0x00bd6ebc testing::UnitTest::Run() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x5c2ebc)
#12 0x00bb1058 main (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x59d058)
intel#13 0xf78185a4 __libc_start_main /build/glibc-9MGTF6/glibc-2.31/csu/libc-start.c:342:3
```
jandres742 pushed a commit that referenced this pull request Nov 22, 2023
Factor out some stack allocation in a separate function. This patch
splits out the generic portion of a larger refactoring done as a part of
stack clash protection support.

The patch is almost, but not quite NFC. The only difference should
be that where we have adjacent allocation of stack space
for local SVE objects and non-local SVE objects the order
of `sub sp, ...` and `addvl sp, ...` instructions is reversed, because now
it's done with a single call to `emitFrameOffset` and it happens
add/subtract the fixed part before the scalable part, e.g.

    addvl sp, sp, #-2
    sub sp, sp, intel#16, lsl #12
    sub sp, sp, intel#16

becomes

    sub sp, sp, intel#16, lsl #12
    sub sp, sp, intel#16
    addvl sp, sp, #-2
kbenzie pushed a commit that referenced this pull request Dec 8, 2023
When all the large const offsets masked with the same value from bit-12 to bit-23.
Fold
  add     x8, x0, intel#2031, lsl #12
  add     x8, x8, intel#960
  ldr     x9, [x8, x8]
  ldr     x8, [x8, intel#2056]

into
  add     x8, x0, intel#2031, lsl #12
  ldr     x9, [x8, intel#960]
  ldr     x8, [x8, intel#3016]
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