clang++ crash compiling inline assembly file

[Quuxplusone]

Bugzilla Link	PR46998
Status	NEW
Importance	P normal
Reported by	Ian McInerney (ian.s.mcinerney@ieee.org)
Reported on	2020-08-04 18:13:10 -0700
Last modified on	2020-08-04 18:13:36 -0700
Version	10.0
Hardware	PC Windows NT
CC	ian.s.mcinerney@ieee.org, llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk
Fixed by commit(s)
Attachments	libcontext-3d40d5.cpp (735984 bytes, text/plain) libcontext-3d40d5.sh (6296 bytes, text/x-sh)
Blocks
Blocked by
See also

Created attachment 23814
Preprocessed source file

When trying to compile a C++ file on Windows 10 using the MSYS2 build of Clang
10, it crashes with the following backtrace. The preprocessed source file and
reproducing script are attached. This assembly is able to be compiled by GCC
with no error.

Stack dump:
0.      Program arguments: C:\msys64\mingw64\bin\clang++.exe -DDEBUG -
DGLM_FORCE_CTOR_INIT -DHAVE_STDINT_H -DKICAD_CONFIG_DIR=kicad -DKICAD_SANITIZE -
DKICAD_SPICE -DKICAD_STDLIB_LIGHT_DEBUG -DKICAD_USE_OCE -DUNICODE -DWXUSINGDLL -
DWX_COMPATIBILITY -D_FILE_OFFSET_BITS=64 -D_UNICODE -D_USE_MATH_DEFINES -
D__USE_MINGW_ANSI_STDIO=1 -D__WXMSW__ -IC:/msys64/home/Ian
McInerney/dev/kicad/code/master/thirdparty/libcontext -isystem
C:/msys64/mingw64/include/cairo -isystem C:/msys64/mingw64/include/pixman-1 -
isystem C:/msys64/mingw64/lib/oce/../../include/oce -isystem
C:/msys64/mingw64/lib/wx/include/msw-unicode-3.0 -isystem
C:/msys64/mingw64/include/wx-3.0 -fsanitize-recover=address -
D_GLIBCXX_SANITIZE_VECTOR -fsanitize=address -fno-optimize-sibling-calls -
fsanitize-address-use-after-scope -fno-omit-frame-pointer -fno-stack-protector -
U_FORTIFY_SOURCE -fpermissive -g3 -ggdb3 -Wp,-D_GLIBCXX_ASSERTIONS -
fvisibility=hidden -fvisibility-inlines-hidden -std=gnu++14 -fno-lto -o
CMakeFiles/libcontext.dir/libcontext.cpp.obj -c C:/msys64/home/Ian
McInerney/dev/kicad/code/master/thirdparty/libcontext/libcontext.cpp
1.      <eof> parser at end of file
2.      Code generation

 #0 0x000000000181586e (C:\msys64\mingw64\bin\clang++.exe+0x141586e)
 #1 0x00000000017c0def (C:\msys64\mingw64\bin\clang++.exe+0x13c0def)
 #2 0x00000000017c1e4d (C:\msys64\mingw64\bin\clang++.exe+0x13c1e4d)
 #3 0x00000000017c2018 (C:\msys64\mingw64\bin\clang++.exe+0x13c2018)
 #4 0x0000000002353abc (C:\msys64\mingw64\bin\clang++.exe+0x1f53abc)
 #5 0x0000000001586e8c (C:\msys64\mingw64\bin\clang++.exe+0x1186e8c)
 #6 0x000000000158fb70 (C:\msys64\mingw64\bin\clang++.exe+0x118fb70)
 #7 0x0000000001c32f88 (C:\msys64\mingw64\bin\clang++.exe+0x1832f88)
 #8 0x0000000001c346f5 (C:\msys64\mingw64\bin\clang++.exe+0x18346f5)
 #9 0x0000000003e9ddbb (C:\msys64\mingw64\bin\clang++.exe+0x3a9ddbb)
#10 0x0000000002d3b009 (C:\msys64\mingw64\bin\clang++.exe+0x293b009)
#11 0x0000000002143679 (C:\msys64\mingw64\bin\clang++.exe+0x1d43679)
#12 0x000000000210f241 (C:\msys64\mingw64\bin\clang++.exe+0x1d0f241)
#13 0x00000000021da48e (C:\msys64\mingw64\bin\clang++.exe+0x1dda48e)
#14 0x0000000000402e67 (C:\msys64\mingw64\bin\clang++.exe+0x2e67)
#15 0x000000000040202e (C:\msys64\mingw64\bin\clang++.exe+0x202e)
#16 0x000000000200c569 (C:\msys64\mingw64\bin\clang++.exe+0x1c0c569)
#17 0x0000000001a385ef (C:\msys64\mingw64\bin\clang++.exe+0x16385ef)
#18 0x000000000200c9e2 (C:\msys64\mingw64\bin\clang++.exe+0x1c0c9e2)
#19 0x0000000001fe8ba7 (C:\msys64\mingw64\bin\clang++.exe+0x1be8ba7)
#20 0x0000000001fe90e3 (C:\msys64\mingw64\bin\clang++.exe+0x1be90e3)
#21 0x0000000001ff2da9 (C:\msys64\mingw64\bin\clang++.exe+0x1bf2da9)
#22 0x0000000004103a81 (C:\msys64\mingw64\bin\clang++.exe+0x3d03a81)
#23 0x00000000004013c1 (C:\msys64\mingw64\bin\clang++.exe+0x13c1)
#24 0x00000000004014f6 (C:\msys64\mingw64\bin\clang++.exe+0x14f6)
#25 0x00007ffba6677974 (C:\Windows\System32\KERNEL32.DLL+0x17974)
#26 0x00007ffba86aa271 (C:\Windows\SYSTEM32\ntdll.dll+0x6a271)
clang++: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 10.0.0 (https://github.com/msys2/MINGW-packages.git
742c89637afd3ef05e578759d9dfeb5dc247a6a3)
Target: x86_64-w64-windows-gnu
Thread model: posix
InstalledDir: C:\msys64\mingw64\bin
clang++: note: diagnostic msg: PLEASE submit a bug report to
https://bugs.llvm.org/ and include the crash backtrace, preprocessed source,
and associated run script.

clang++: note: diagnostic msg:
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang++: note: diagnostic msg: C:\msys64\tmp\libcontext-3d40d5.cpp
clang++: note: diagnostic msg: C:\msys64\tmp\libcontext-3d40d5.sh
clang++: note: diagnostic msg:

********************
make[2]: *** [thirdparty/libcontext/CMakeFiles/libcontext.dir/build.make:83:
thirdparty/libcontext/CMakeFiles/libcontext.dir/libcontext.cpp.obj] Error 1
make[1]: *** [CMakeFiles/Makefile2:2478:
thirdparty/libcontext/CMakeFiles/libcontext.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....

[Quuxplusone]

Attached libcontext-3d40d5.cpp (735984 bytes, text/plain): Preprocessed source file

[Quuxplusone]

Attached libcontext-3d40d5.sh (6296 bytes, text/x-sh): Reproducing script