[llvm-bugs] [Bug 40184] New: Clang 8.0 SVN (up to 350161) crashed for building Notepad2 (https://github.com/zufuliu/notepad2) for ARM64 in Release configuration

via llvm-bugs llvm-bugs at lists.llvm.org
Sun Dec 30 04:55:20 PST 2018


            Bug ID: 40184
           Summary: Clang 8.0 SVN (up to 350161) crashed for building
                    Notepad2 (https://github.com/zufuliu/notepad2) for
                    ARM64 in Release configuration
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: C++
          Assignee: unassignedclangbugs at nondot.org
          Reporter: zufuliu at 163.com
                CC: blitzrakete at gmail.com, dgregor at apple.com,
                    erik.pilkington at gmail.com, llvm-bugs at lists.llvm.org,
                    richard-llvm at metafoo.co.uk

Created attachment 21280
  --> https://bugs.llvm.org/attachment.cgi?id=21280&action=edit
Stacktrace for Clang svn 347735 and 350161

Step to Produce:

1. Install latest Visual Studio 2017 15.9.4 and Windows 10 SDK 10.0.17763.0

2. Install LLVM for Visual Studio from
https://github.com/zufuliu/llvm-utils/releases, using LLVM_VS2017.zip. This
MSBuild source code is very similar to source in
http://llvm.org/svn/llvm-project/llvm/trunk/tools/msbuild, except I added ARM64
support (and other small changes):

    <AdditionalOptions Condition="'$(Platform)' ==
'ARM64'">--target=aarch64-pc-windows-msvc $(ClangClAdditionalOptions)

3. Get source code for https://github.com/zufuliu/notepad2, Open
build\VS2017\Notepad2.sln, select LLVMDebug + ARM64 and LLVMRelease + ARM64 to
build both project, result:

                    LLVMDebug + ARM64           LLVMRelease + ARM64
    metapath        OK                          OK
    Notepad2        OK                          Clang Crashed for both c++17
and c++2a

Host Windows 10 x64 Pro 1803 v10.0.17134.472 on i5-4570.

Detail stacktrace ("/showFilenames -v" is added to LLVM -> Additional Compiler
Options) for c++2a (c++17 is very similar) is in attachment.

SVN r347735 from http://llvm.org/builds/:

1>Assertion failed:
Subtarget.isCallingConvWin64(MF.getFunction().getCallingConv()) && "Funclets
should only be present on Win64", file
line 1506

Self build 350161 trunk:

1>Assertion failed: unsigned(ObjectIdx+NumFixedObjects) < Objects.size() &&
"Invalid Object Idx!", file
H:\llvm\llvm\include\llvm/CodeGen/MachineFrameInfo.h, line 489

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