clang crashes when using pre-compiled headers and modules at the same time.

[YiRanMushroom]

I was trying to compile my project using modules and PCMs simultaneously. At first, it was okay, but later, when I used too many modules in a source file, clang crashed, here is the log:

FAILED: CMakeFiles/sdl2_games.dir/src/application/application.cppm.obj CMakeFiles/sdl2_games.dir/application.pcm 
C:\PROGRA~1\LLVM\bin\CLANG_~1.EXE  -IE:/code/C++/sdl2_games/src/headers -isystem E:/code/C++/sdl2_games/cmake-build-debug/vcpkg_installed/x64-windows-static/include -isystem E:/code/C++/sdl2_games/cmake-build-debug/vcpkg_installed/x64-windows-static/include/SDL2 -O0 -std=gnu++23 -D_DEBUG -D_DLL -D_MT -Xclang --dependent-lib=msvcrtd -g -Xclang -gcodeview -Xclang -include-pch -Xclang E:/code/C++/sdl2_games/cmake-build-debug/CMakeFiles/sdl2_games.dir/cmake_pch.hxx.pch -Xclang -include -Xclang E:/code/C++/sdl2_games/cmake-build-debug/CMakeFiles/sdl2_games.dir/cmake_pch.hxx -MD -MT CMakeFiles/sdl2_games.dir/src/application/application.cppm.obj -MF CMakeFiles\sdl2_games.dir\src\application\application.cppm.obj.d @CMakeFiles\sdl2_games.dir\src\application\application.cppm.obj.modmap -o CMakeFiles/sdl2_games.dir/src/application/application.cppm.obj -c E:/code/C++/sdl2_games/src/application/application.cppm
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0.	Program arguments: "C:\\Program Files\\LLVM\\bin\\clang++.exe" -cc1 -triple x86_64-pc-windows-msvc19.41.34123 -emit-obj -mincremental-linker-compatible -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name application.cppm -mrelocation-model pic -pic-level 2 -mframe-pointer=none -relaxed-aliasing -fmath-errno -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -gno-column-info -gcodeview -debug-info-kind=constructor -fdebug-compilation-dir=E:\\code\\C++\\sdl2_games\\cmake-build-debug -object-file-name=E:\\code\\C++\\sdl2_games\\cmake-build-debug\\CMakeFiles\\sdl2_games.dir\\src\\application\\application.cppm.obj -fcoverage-compilation-dir=E:\\code\\C++\\sdl2_games\\cmake-build-debug -resource-dir "C:\\Program Files\\LLVM\\lib\\clang\\19" -O0 -std=gnu++23 -fdeprecated-macro -ferror-limit 19 -fno-use-cxa-atexit -fms-extensions -fms-compatibility -fms-compatibility-version=19.41.34123 -fno-implicit-modules -fmodule-file=template_string=CMakeFiles/sdl2_games.dir/template_string.pcm -fmodule-file=SDL2_EventListener=CMakeFiles/sdl2_games.dir/SDL2_EventListener.pcm -fmodule-file=newModule=CMakeFiles/sdl2_games.dir/newModule.pcm -fmodule-file=SDL2_ImGui_VM=CMakeFiles/sdl2_games.dir/SDL2_ImGui_VM.pcm -fskip-odr-check-in-gmf -fcxx-exceptions -fexceptions --dependent-lib=msvcrtd -gcodeview -include-pch E:/code/C++/sdl2_games/cmake-build-debug/CMakeFiles/sdl2_games.dir/cmake_pch.hxx.pch -include E:/code/C++/sdl2_games/cmake-build-debug/CMakeFiles/sdl2_games.dir/cmake_pch.hxx -faddrsig -o CMakeFiles/sdl2_games.dir/src/application/application.cppm.obj -x pcm CMakeFiles/sdl2_games.dir/application.pcm
Exception Code: 0xC0000005
 #0 0x00007ff65a7ad706 (C:\Program Files\LLVM\bin\clang++.exe+0x23cd706)
 #1 0x00007ff65b3d59e5 (C:\Program Files\LLVM\bin\clang++.exe+0x2ff59e5)
 #2 0x00007ff65b3d47eb (C:\Program Files\LLVM\bin\clang++.exe+0x2ff47eb)
 #3 0x00007ff65a7d8e33 (C:\Program Files\LLVM\bin\clang++.exe+0x23f8e33)
 #4 0x00007ff65a7dc0b7 (C:\Program Files\LLVM\bin\clang++.exe+0x23fc0b7)
 #5 0x00007ff65a7c4bf1 (C:\Program Files\LLVM\bin\clang++.exe+0x23e4bf1)
 #6 0x00007ff65b4506e7 (C:\Program Files\LLVM\bin\clang++.exe+0x30706e7)
 #7 0x00007ff6589b87fb (C:\Program Files\LLVM\bin\clang++.exe+0x5d87fb)
 #8 0x00007ff6589a3703 (C:\Program Files\LLVM\bin\clang++.exe+0x5c3703)
 #9 0x00007ff6589a0486 (C:\Program Files\LLVM\bin\clang++.exe+0x5c0486)
#10 0x00007ff65899d445 (C:\Program Files\LLVM\bin\clang++.exe+0x5bd445)
#11 0x00007ff65899bdde (C:\Program Files\LLVM\bin\clang++.exe+0x5bbdde)
#12 0x00007ff65882348a (C:\Program Files\LLVM\bin\clang++.exe+0x44348a)
#13 0x00007ff65881fee3 (C:\Program Files\LLVM\bin\clang++.exe+0x43fee3)
#14 0x00007ff659fe2d58 (C:\Program Files\LLVM\bin\clang++.exe+0x1c02d58)
#15 0x00007ff9f8bc259d (C:\windows\System32\KERNEL32.DLL+0x1259d)
#16 0x00007ff9f91caf38 (C:\windows\SYSTEM32\ntdll.dll+0x5af38)
clang++: error: clang frontend command failed due to signal (use -v to see invocation)
clang version 19.1.6
Target: x86_64-pc-windows-msvc
Thread model: posix
InstalledDir: C:\Program Files\LLVM\bin
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:\Users\Yiran\AppData\Local\Temp\application-28b6b0.cppm
clang++: note: diagnostic msg: C:\Users\Yiran\AppData\Local\Temp\application-28b6b0.sh
clang++: note: diagnostic msg: 

********************
ninja: build stopped: subcommand failed.

Compiling this file is not easy since other files are needed. However, reproducing the issue is not hard.
application-28b6b0.sh.txt
application-28b6b0.cppm.txt

[llvmbot]

@llvm/issue-subscribers-clang-modules

Author: None (YiRanMushroom)

I was trying to compile my project using modules and PCMs simultaneously. At first, it was okay, but later, when I used too many modules in a source file, clang crashed, here is the log: ``` FAILED: CMakeFiles/sdl2_games.dir/src/application/application.cppm.obj CMakeFiles/sdl2_games.dir/application.pcm C:\PROGRA~1\LLVM\bin\CLANG_~1.EXE -IE:/code/C++/sdl2_games/src/headers -isystem E:/code/C++/sdl2_games/cmake-build-debug/vcpkg_installed/x64-windows-static/include -isystem E:/code/C++/sdl2_games/cmake-build-debug/vcpkg_installed/x64-windows-static/include/SDL2 -O0 -std=gnu++23 -D_DEBUG -D_DLL -D_MT -Xclang --dependent-lib=msvcrtd -g -Xclang -gcodeview -Xclang -include-pch -Xclang E:/code/C++/sdl2_games/cmake-build-debug/CMakeFiles/sdl2_games.dir/cmake_pch.hxx.pch -Xclang -include -Xclang E:/code/C++/sdl2_games/cmake-build-debug/CMakeFiles/sdl2_games.dir/cmake_pch.hxx -MD -MT CMakeFiles/sdl2_games.dir/src/application/application.cppm.obj -MF CMakeFiles\sdl2_games.dir\src\application\application.cppm.obj.d @CMakeFiles\sdl2_games.dir\src\application\application.cppm.obj.modmap -o CMakeFiles/sdl2_games.dir/src/application/application.cppm.obj -c E:/code/C++/sdl2_games/src/application/application.cppm PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script. Stack dump: 0. Program arguments: "C:\\Program Files\\LLVM\\bin\\clang++.exe" -cc1 -triple x86_64-pc-windows-msvc19.41.34123 -emit-obj -mincremental-linker-compatible -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name application.cppm -mrelocation-model pic -pic-level 2 -mframe-pointer=none -relaxed-aliasing -fmath-errno -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -gno-column-info -gcodeview -debug-info-kind=constructor -fdebug-compilation-dir=E:\\code\\C++\\sdl2_games\\cmake-build-debug -object-file-name=E:\\code\\C++\\sdl2_games\\cmake-build-debug\\CMakeFiles\\sdl2_games.dir\\src\\application\\application.cppm.obj -fcoverage-compilation-dir=E:\\code\\C++\\sdl2_games\\cmake-build-debug -resource-dir "C:\\Program Files\\LLVM\\lib\\clang\\19" -O0 -std=gnu++23 -fdeprecated-macro -ferror-limit 19 -fno-use-cxa-atexit -fms-extensions -fms-compatibility -fms-compatibility-version=19.41.34123 -fno-implicit-modules -fmodule-file=template_string=CMakeFiles/sdl2_games.dir/template_string.pcm -fmodule-file=SDL2_EventListener=CMakeFiles/sdl2_games.dir/SDL2_EventListener.pcm -fmodule-file=newModule=CMakeFiles/sdl2_games.dir/newModule.pcm -fmodule-file=SDL2_ImGui_VM=CMakeFiles/sdl2_games.dir/SDL2_ImGui_VM.pcm -fskip-odr-check-in-gmf -fcxx-exceptions -fexceptions --dependent-lib=msvcrtd -gcodeview -include-pch E:/code/C++/sdl2_games/cmake-build-debug/CMakeFiles/sdl2_games.dir/cmake_pch.hxx.pch -include E:/code/C++/sdl2_games/cmake-build-debug/CMakeFiles/sdl2_games.dir/cmake_pch.hxx -faddrsig -o CMakeFiles/sdl2_games.dir/src/application/application.cppm.obj -x pcm CMakeFiles/sdl2_games.dir/application.pcm Exception Code: 0xC0000005 #0 0x00007ff65a7ad706 (C:\Program Files\LLVM\bin\clang++.exe+0x23cd706) #1 0x00007ff65b3d59e5 (C:\Program Files\LLVM\bin\clang++.exe+0x2ff59e5) #2 0x00007ff65b3d47eb (C:\Program Files\LLVM\bin\clang++.exe+0x2ff47eb) #3 0x00007ff65a7d8e33 (C:\Program Files\LLVM\bin\clang++.exe+0x23f8e33) #4 0x00007ff65a7dc0b7 (C:\Program Files\LLVM\bin\clang++.exe+0x23fc0b7) #5 0x00007ff65a7c4bf1 (C:\Program Files\LLVM\bin\clang++.exe+0x23e4bf1) #6 0x00007ff65b4506e7 (C:\Program Files\LLVM\bin\clang++.exe+0x30706e7) #7 0x00007ff6589b87fb (C:\Program Files\LLVM\bin\clang++.exe+0x5d87fb) #8 0x00007ff6589a3703 (C:\Program Files\LLVM\bin\clang++.exe+0x5c3703) #9 0x00007ff6589a0486 (C:\Program Files\LLVM\bin\clang++.exe+0x5c0486) #10 0x00007ff65899d445 (C:\Program Files\LLVM\bin\clang++.exe+0x5bd445) #11 0x00007ff65899bdde (C:\Program Files\LLVM\bin\clang++.exe+0x5bbdde) #12 0x00007ff65882348a (C:\Program Files\LLVM\bin\clang++.exe+0x44348a) #13 0x00007ff65881fee3 (C:\Program Files\LLVM\bin\clang++.exe+0x43fee3) #14 0x00007ff659fe2d58 (C:\Program Files\LLVM\bin\clang++.exe+0x1c02d58) #15 0x00007ff9f8bc259d (C:\windows\System32\KERNEL32.DLL+0x1259d) #16 0x00007ff9f91caf38 (C:\windows\SYSTEM32\ntdll.dll+0x5af38) clang++: error: clang frontend command failed due to signal (use -v to see invocation) clang version 19.1.6 Target: x86_64-pc-windows-msvc Thread model: posix InstalledDir: C:\Program Files\LLVM\bin 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:\Users\Yiran\AppData\Local\Temp\application-28b6b0.cppm
clang++: note: diagnostic msg: C:\Users\Yiran\AppData\Local\Temp\application-28b6b0.sh
clang++: note: diagnostic msg:

---

ninja: build stopped: subcommand failed.

Compiling this file is not easy since other files are needed. However, reproducing the issue is not hard.
[application-28b6b0.sh.txt](https://github.com/user-attachments/files/18265761/application-28b6b0.sh.txt)
[application-28b6b0.cppm.txt](https://github.com/user-attachments/files/18265760/application-28b6b0.cppm.txt)

</details>

[sampavlovic]

Can reproduce it, using pch by itself doesn't crash eg with a #warning inside of it, but adding any #include files to it triggers the crash

Happens on OS X, clang 19 from brew

#0 0x000000011c4816fc llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/homebrew/Cellar/llvm/19.1.6/lib/libLLVM.dylib+0x4a116fc)
 #1 0x000000011c481ae8 SignalHandler(int) (/opt/homebrew/Cellar/llvm/19.1.6/lib/libLLVM.dylib+0x4a11ae8)
 #2 0x000000019b252e04 (/usr/lib/system/libsystem_platform.dylib+0x180482e04)
 #3 0x000000010b948438 clang::ASTReader::loadDeclUpdateRecords(clang::ASTReader::PendingUpdateRecord&) (/opt/homebrew/Cellar/llvm/19.1.6/lib/libclang-cpp.dylib+0x21ac438)
 #4 0x000000010b8ee474 clang::ASTReader::finishPendingActions() (/opt/homebrew/Cellar/llvm/19.1.6/lib/libclang-cpp.dylib+0x2152474)
 #5 0x000000010b8f37e8 clang::ASTReader::FinishedDeserializing() (/opt/homebrew/Cellar/llvm/19.1.6/lib/libclang-cpp.dylib+0x21577e8)
 #6 0x000000010b8cf704 clang::ASTReader::ReadAST(llvm::StringRef, clang::serialization::ModuleKind, clang::SourceLocation, unsigned int, clang::serialization::ModuleFile**) (/opt/homebrew/Cellar/llvm/19.1.6/lib/libclang-cpp.dylib+0x2133704)
 #7 0x000000010ba70444 clang::ASTUnit::LoadFromASTFile(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, clang::PCHContainerReader const&, clang::ASTUnit::WhatToLoad, llvm::IntrusiveRefCntPtr<clang::DiagnosticsEngine>, clang::FileSystemOptions const&, std::__1::shared_ptr<clang::HeaderSearchOptions>, std::__1::shared_ptr<clang::LangOptions>, bool, clang::CaptureDiagsKind, bool, bool, llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>) (/opt/homebrew/Cellar/llvm/19.1.6/lib/libclang-cpp.dylib+0x22d4444)
 #8 0x000000010bb0cffc clang::FrontendAction::BeginSourceFile(clang::CompilerInstance&, clang::FrontendInputFile const&) (/opt/homebrew/Cellar/llvm/19.1.6/lib/libclang-cpp.dylib+0x2370ffc)
 #9 0x000000010ba87dfc clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/homebrew/Cellar/llvm/19.1.6/lib/libclang-cpp.dylib+0x22ebdfc)
#10 0x000000010bb6aea8 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/homebrew/Cellar/llvm/19.1.6/lib/libclang-cpp.dylib+0x23ceea8)
#11 0x00000001044aeb3c cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/homebrew/Cellar/llvm/19.1.6/bin/clang-19+0x100006b3c)
#12 0x00000001044ac78c ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) (/opt/homebrew/Cellar/llvm/19.1.6/bin/clang-19+0x10000478c)
#13 0x00000001044aac18 clang_main(int, char**, llvm::ToolContext const&) (/opt/homebrew/Cellar/llvm/19.1.6/bin/clang-19+0x100002c18)
#14 0x00000001044b904c main (/opt/homebrew/Cellar/llvm/19.1.6/bin/clang-19+0x10001104c)
#15 0x000000019ae9c274
clang++: error: unable to execute command: Segmentation fault: 11
clang++: error: clang frontend command failed due to signal (use -v to see invocation)
Homebrew clang version 19.1.6
Target: arm64-apple-darwin24.2.0
Thread model: posix
InstalledDir: /opt/homebrew/Cellar/llvm/19.1.6/bin
Configuration file: /opt/homebrew/etc/clang/arm64-apple-darwin24.cfg
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: /var/folders/9j/1hcg_rkx1cd157_8rppsbrbr0000gn/T/PlatformSDL-3a51bd.cppm
clang++: note: diagnostic msg: /var/folders/9j/1hcg_rkx1cd157_8rppsbrbr0000gn/T/PlatformSDL-3a51bd.sh
clang++: note: diagnostic msg: Crash backtrace is located in
clang++: note: diagnostic msg: /Users/sam/Library/Logs/DiagnosticReports/clang-19_<YYYY-MM-DD-HHMMSS>_<hostname>.crash
clang++: note: diagnostic msg: (choose the .crash file that corresponds to your crash)
clang++: note: diagnostic msg:

********************

here's the two files it asked to include

PlatformSDL-3a51bd.cppm.zip

# Driver args: "-isysroot" "/Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk" "--driver-mode=g++" "-D" "FMT_LOCALE" "-D" "JPH_DEBUG_RENDERER" "-D" "JPH_OBJECT_STREAM" "-D" "JPH_PROFILE_ENABLED" "-D" "NDEBUG" "-D" "OSX" "-D" "RMLUI_STATIC_LIB" "-D" "WEBGPU_BACKEND_WGPU" "-I" "/Users/sam/Documents/Dev/Solitude/Build/_deps/jolt-src/Build/.." "-isystem" "/Users/sam/Documents/Dev/Solitude/Build/_deps/fmt-src/include" "-isystem" "/Users/sam/Documents/Dev/Solitude/Build/_deps/taskflow-src" "-isystem" "/Users/sam/Documents/Dev/Solitude/Build/_deps/entt-src/src" "-isystem" "/Users/sam/Documents/Dev/Solitude/Build/_deps/sdl-build/include" "-isystem" "/Users/sam/Documents/Dev/Solitude/Build/_deps/sdl-build/include/SDL2" "-isystem" "/Users/sam/Documents/Dev/Solitude/Build/_deps/sdl-build/include-config-release/SDL2" "-isystem" "/Users/sam/Documents/Dev/Solitude/Build/_deps/cglm-src/include" "-isystem" "/Users/sam/Documents/Dev/Solitude/Build/_deps/gamenetworkingsockets-src/src/../include" "-isystem" "/opt/homebrew/include" "-isystem" "/Users/sam/Documents/Dev/Solitude/Build/_deps/ozz-animation-src/include" "-isystem" "/Users/sam/Documents/Dev/Solitude/Build/_deps/rmlui-src/Include" "-isystem" "/Users/sam/Documents/Dev/Solitude/Build/_deps/webgpu-backend-wgpu-src/include" "-isystem" "/Users/sam/Documents/Dev/Solitude/Build/_deps/sdl2webgpu-src/." "-O3" "-D" "NDEBUG" "-std=c++23" "-arch" "arm64" "-isysroot" "/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.2.sdk" "-pthread" "-Winvalid-pch" "-Xclang" "-include-pch" "-Xclang" "/Users/sam/Documents/Dev/Solitude/Build/Source/Vitamin/CMakeFiles/Vitamin.dir/cmake_pch.hxx.pch" "-Xclang" "-include" "-Xclang" "/Users/sam/Documents/Dev/Solitude/Build/Source/Vitamin/CMakeFiles/Vitamin.dir/cmake_pch.hxx" "-MD" "-MT" "Source/Vitamin/CMakeFiles/Vitamin.dir/Platform/SDL/PlatformSDL.cpp.o" "-MF" "Source/Vitamin/CMakeFiles/Vitamin.dir/Platform/SDL/PlatformSDL.cpp.o.d" "-x" "c++-module" "-fmodule-output=Source/Vitamin/CMakeFiles/Vitamin.dir/Vitamin.Platform.SDL.pcm" "-fmodule-file=Vitamin.Platform.Interface=Source/Vitamin/CMakeFiles/Vitamin.dir/Vitamin.Platform.Interface.pcm" "-fmodule-file=Vitamin.Core=Source/Vitamin/CMakeFiles/Vitamin.dir/Vitamin.Core.pcm" "-fmodule-file=Vitamin.Core.Math=Source/Vitamin/CMakeFiles/Vitamin.dir/Vitamin.Core.Math.pcm" "-fmodule-file=Vitamin.Core.STL=Source/Vitamin/CMakeFiles/Vitamin.dir/Vitamin.Core.STL.pcm" "-o" "Source/Vitamin/CMakeFiles/Vitamin.dir/Platform/SDL/PlatformSDL.cpp.o" "-c" "/Users/sam/Documents/Dev/Solitude/Source/Vitamin/Platform/SDL/PlatformSDL.cpp"
# Original command:  "/opt/homebrew/Cellar/llvm/19.1.6/bin/clang-19" "-cc1" "-triple" "arm64-apple-macosx15.0.0" "-Wundef-prefix=TARGET_OS_" "-Werror=undef-prefix" "-Wdeprecated-objc-isa-usage" "-Werror=deprecated-objc-isa-usage" "-emit-obj" "-disable-free" "-clear-ast-before-backend" "-disable-llvm-verifier" "-discard-value-names" "-main-file-name" "PlatformSDL.cpp" "-mrelocation-model" "pic" "-pic-level" "2" "-mframe-pointer=non-leaf" "-ffp-contract=on" "-fno-rounding-math" "-funwind-tables=1" "-target-sdk-version=15.2" "-fcompatibility-qualified-id-block-type-checking" "-fvisibility-inlines-hidden-static-local-var" "-fdefine-target-os-macros" "-target-cpu" "apple-m1" "-target-feature" "+zcm" "-target-feature" "+zcz" "-target-feature" "+v8.4a" "-target-feature" "+aes" "-target-feature" "+altnzcv" "-target-feature" "+ccdp" "-target-feature" "+complxnum" "-target-feature" "+crc" "-target-feature" "+dotprod" "-target-feature" "+fp-armv8" "-target-feature" "+fp16fml" "-target-feature" "+fptoint" "-target-feature" "+fullfp16" "-target-feature" "+jsconv" "-target-feature" "+lse" "-target-feature" "+neon" "-target-feature" "+pauth" "-target-feature" "+perfmon" "-target-feature" "+predres" "-target-feature" "+ras" "-target-feature" "+rcpc" "-target-feature" "+rdm" "-target-feature" "+sb" "-target-feature" "+sha2" "-target-feature" "+sha3" "-target-feature" "+specrestrict" "-target-feature" "+ssbs" "-target-abi" "darwinpcs" "-debugger-tuning=lldb" "-fdebug-compilation-dir=/Users/sam/Documents/Dev/Solitude/Build" "-target-linker-version" "1115.7.3" "-fcoverage-compilation-dir=/Users/sam/Documents/Dev/Solitude/Build" "-resource-dir" "/opt/homebrew/Cellar/llvm/19.1.6/lib/clang/19" "-O3" "-Winvalid-pch" "-std=c++23" "-fdeprecated-macro" "-ferror-limit" "19" "-pthread" "-stack-protector" "1" "-fblocks" "-fencode-extended-block-signature" "-fregister-global-dtors-with-atexit" "-fgnuc-version=4.2.1" "-fno-implicit-modules" "-fmodule-file=Vitamin.Platform.Interface=Source/Vitamin/CMakeFiles/Vitamin.dir/Vitamin.Platform.Interface.pcm" "-fmodule-file=Vitamin.Core=Source/Vitamin/CMakeFiles/Vitamin.dir/Vitamin.Core.pcm" "-fmodule-file=Vitamin.Core.Math=Source/Vitamin/CMakeFiles/Vitamin.dir/Vitamin.Core.Math.pcm" "-fmodule-file=Vitamin.Core.STL=Source/Vitamin/CMakeFiles/Vitamin.dir/Vitamin.Core.STL.pcm" "-fskip-odr-check-in-gmf" "-fcxx-exceptions" "-fexceptions" "-fmax-type-align=16" "-vectorize-loops" "-vectorize-slp" "-include-pch" "/Users/sam/Documents/Dev/Solitude/Build/Source/Vitamin/CMakeFiles/Vitamin.dir/cmake_pch.hxx.pch" "-include" "/Users/sam/Documents/Dev/Solitude/Build/Source/Vitamin/CMakeFiles/Vitamin.dir/cmake_pch.hxx" "-D__GCC_HAVE_DWARF2_CFI_ASM=1" "-o" "Source/Vitamin/CMakeFiles/Vitamin.dir/Platform/SDL/PlatformSDL.cpp.o" "-x" "pcm" "Source/Vitamin/CMakeFiles/Vitamin.dir/Vitamin.Platform.SDL.pcm"
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[sampavlovic]

might be a duplicate of #95317 #105994

[sushinskiy]

It seems, it also duplicates #122285

[YiRanMushroom]

It seems, the issue is fixed in the release LLVM 20.1.2. This issue is closed as completed. In case, there are still problems, we can reopen it.

[sampavlovic]

Awesome, thank you very much for the heads up @YiRanMushroom , I'll let you know if any issues come up