| Issue |
136481
|
| Summary |
Windows clang-cl.exe 19.1.1 crash
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
MiguelBarro
|
## Environment
- [Github workflow](https://raw.githubusercontent.com/MiguelBarro/CppCoroutines/refs/heads/main/.github/workflows/ci.yml)
- Github hosted windows-latest runner (matches windows-2025 on this report date)
- using `CMake` with visual studio generator using `ClangCl` toolset.
## Reproduction steps
The crash was generated in [this repo](https://github.com/MiguelBarro/CppCoroutines.git) *github actions*.
The repo workflow uses windows, ubuntu and Macos github hosted runners. It runs `CMake` to build C++ sources.
The issue is in the `windows-clang` job. Note that `clang` works perfectly on Ubuntu (see `ubuntu-clang` and `macos-clang` jobs).
The issue appears when the C++ sources were modified to use `unique_ptr<char[]>`.
## Crash report
It is available [here](https://github.com/MiguelBarro/CppCoroutines/actions/runs/14553506438/job/40827454188#logs).
basically:
```
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\\Microsoft Visual Studio\\2022\\Enterprise\\VC\\Tools\\Llvm\\x64\\bin\\clang-cl.exe" @C:\\Users\\runneradmin\\AppData\\Local\\Temp\\MSBuildTemp\\tmp53ddccde22e94fa5985920d130732494.rsp
1. <eof> parser at end of file
2. Optimizer
first.vcxproj -> D:\a\CppCoroutines\CppCoroutines\examples\build\Gor\RelWithDebInfo\first.exe
Building Custom Rule D:/a/CppCoroutines/CppCoroutines/examples/basics/CMakeLists.txt
3. Running pass "require<globals-aa>,function(invalidate<aa>),require<profile-summary>,cgscc(devirt<4>(inline,function-attrs<skip-non-recursive-function-attrs>,argpromotion,openmp-opt-cgscc,function<eager-inv;no-rerun>(sroa<modify-cfg>,early-cse<memssa>,speculative-execution<only-if-divergent-target>,jump-threading,correlated-propagation,simplifycfg<bonus-inst-threshold=1;no-forward-switch-cond;switch-range-to-icmp;no-switch-to-lookup;keep-loops;no-hoist-common-insts;no-sink-common-insts;speculate-blocks;simplify-cond-branch;no-speculate-unpredictables>,instcombine<max-iterations=1;no-use-loop-info;no-verify-fixpoint>,aggressive-instcombine,libcalls-shrinkwrap,tailcallelim,simplifycfg<bonus-inst-threshold=1;no-forward-switch-cond;switch-range-to-icmp;no-switch-to-lookup;keep-loops;no-hoist-common-insts;no-sink-common-insts;speculate-blocks;simplify-cond-branch;no-speculate-unpredictables>,reassociate,constraint-elimination,loop-mssa(loop-instsimplify,loop-simplifycfg,licm<no-allowspeculation>,loop-rotate<header-duplication;no-prepare-for-lto>,licm<allowspeculation>,simple-loop-unswitch<nontrivial;trivial>),simplifycfg<bonus-inst-threshold=1;no-forward-switch-cond;switch-range-to-icmp;no-switch-to-lookup;keep-loops;no-hoist-common-insts;no-sink-common-insts;speculate-blocks;simplify-cond-branch;no-speculate-unpredictables>,instcombine<max-iterations=1;no-use-loop-info;no-verify-fixpoint>,loop(loop-idiom,indvars,simple-loop-unswitch<nontrivial;trivial>,loop-deletion,loop-unroll-full),sroa<modify-cfg>,vector-combine,mldst-motion<no-split-footer-bb>,gvn<>,sccp,bdce,instcombine<max-iterations=1;no-use-loop-info;no-verify-fixpoint>,jump-threading,correlated-propagation,adce,memcpyopt,dse,move-auto-init,loop-mssa(licm<allowspeculation>),coro-elide,simplifycfg<bonus-inst-threshold=1;no-forward-switch-cond;switch-range-to-icmp;no-switch-to-lookup;keep-loops;hoist-common-insts;sink-common-insts;speculate-blocks;simplify-cond-branch;no-speculate-unpredictables>,instcombine<max-iterations=1;no-use-loop-info;no-verify-fixpoint>),function-attrs,function(require<should-not-run-function-passes>),coro-split)),function(invalidate<should-not-run-function-passes>),cgscc(devirt<4>())" on module "D:\a\CppCoroutines\CppCoroutines\examples\Gor\client.cpp"
4. Running pass "cgscc(devirt<4>(inline,function-attrs<skip-non-recursive-function-attrs>,argpromotion,openmp-opt-cgscc,function<eager-inv;no-rerun>(sroa<modify-cfg>,early-cse<memssa>,speculative-execution<only-if-divergent-target>,jump-threading,correlated-propagation,simplifycfg<bonus-inst-threshold=1;no-forward-switch-cond;switch-range-to-icmp;no-switch-to-lookup;keep-loops;no-hoist-common-insts;no-sink-common-insts;speculate-blocks;simplify-cond-branch;no-speculate-unpredictables>,instcombine<max-iterations=1;no-use-loop-info;no-verify-fixpoint>,aggressive-instcombine,libcalls-shrinkwrap,tailcallelim,simplifycfg<bonus-inst-threshold=1;no-forward-switch-cond;switch-range-to-icmp;no-switch-to-lookup;keep-loops;no-hoist-common-insts;no-sink-common-insts;speculate-blocks;simplify-cond-branch;no-speculate-unpredictables>,reassociate,constraint-elimination,loop-mssa(loop-instsimplify,loop-simplifycfg,licm<no-allowspeculation>,loop-rotate<header-duplication;no-prepare-for-lto>,licm<allowspeculation>,simple-loop-unswitch<nontrivial;trivial>),simplifycfg<bonus-inst-threshold=1;no-forward-switch-cond;switch-range-to-icmp;no-switch-to-lookup;keep-loops;no-hoist-common-insts;no-sink-common-insts;speculate-blocks;simplify-cond-branch;no-speculate-unpredictables>,instcombine<max-iterations=1;no-use-loop-info;no-verify-fixpoint>,loop(loop-idiom,indvars,simple-loop-unswitch<nontrivial;trivial>,loop-deletion,loop-unroll-full),sroa<modify-cfg>,vector-combine,mldst-motion<no-split-footer-bb>,gvn<>,sccp,bdce,instcombine<max-iterations=1;no-use-loop-info;no-verify-fixpoint>,jump-threading,correlated-propagation,adce,memcpyopt,dse,move-auto-init,loop-mssa(licm<allowspeculation>),coro-elide,simplifycfg<bonus-inst-threshold=1;no-forward-switch-cond;switch-range-to-icmp;no-switch-to-lookup;keep-loops;hoist-common-insts;sink-common-insts;speculate-blocks;simplify-cond-branch;no-speculate-unpredictables>,instcombine<max-iterations=1;no-use-loop-info;no-verify-fixpoint>),function-attrs,function(require<should-not-run-function-passes>),coro-split))" on module "D:\a\CppCoroutines\CppCoroutines\examples\Gor\client.cpp"
5. Running pass "jump-threading" on function "?session@@YA?AV?$future@U?$pair@_K_K@std@@@std@@AEAVio_service@asio@@AEAV?$basic_resolver_iterator@Vtcp@ip@asio@@@ip@4@_KAEAU?$atomic@_N@2@@Z.resume"
Exception Code: 0xC0000005
#0 0x00007ff790d194ce (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0xec94ce)
#1 0x00007ff7911330ea (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x12e30ea)
#2 0x00007ff79164d3c4 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x17fd3c4)
#3 0x00007ff791645076 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x17f5076)
#4 0x00007ff79173db96 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x18edb96)
#5 0x00007ff7917390af (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x18e90af)
#6 0x00007ff7917355f0 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x18e55f0)
#7 0x00007ff791177c24 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x1327c24)
#8 0x00007ff791177a71 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x1327a71)
#9 0x00007ff7914b9643 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x1669643)
#10 0x00007ff7914b92c1 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x16692c1)
#11 0x00007ff791280680 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x1430680)
#12 0x00007ff79128037b (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x143037b)
#13 0x00007ff7916f5fab (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x18a5fab)
#14 0x00007ff7916f5c8b (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x18a5c8b)
#15 0x00007ff791835b59 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x19e5b59)
#16 0x00007ff7918358eb (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x19e58eb)
#17 0x00007ff7917eb4d6 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x199b4d6)
#18 0x00007ff790235b71 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x3e5b71)
#19 0x00007ff79012a260 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x2da260)
#20 0x00007ff790642c50 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x7f2c50)
#21 0x00007ff790642a81 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x7f2a81)
#22 0x00007ff79012a260 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x2da260)
#23 0x00007ff790125918 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x2d5918)
#24 0x00007ff79011c432 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x2cc432)
#25 0x00007ff7914bc015 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x166c015)
#26 0x00007ff7919ac588 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x1b5c588)
#27 0x00007ff79040d8a1 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x5bd8a1)
#28 0x00007ff79040d432 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x5bd432)
#29 0x00007ff79040a1a6 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x5ba1a6)
#30 0x00007ff790407165 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x5b7165)
#31 0x00007ff790405afe (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x5b5afe)
#32 0x00007ff790b1f23d (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0xccf23d)
#33 0x00007ff79058db25 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x73db25)
#34 0x00007ff79058d918 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x73d918)
#35 0x00007ff79028b8[78](https://github.com/MiguelBarro/CppCoroutines/actions/runs/14553506438/job/40827454188#step:3:79) (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x43b878)
#36 0x00007ff[79](https://github.com/MiguelBarro/CppCoroutines/actions/runs/14553506438/job/40827454188#step:3:80)028abfe (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x43abfe)
#37 0x00007ff79028a777 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x43a777)
#38 0x00007ff7902[81](https://github.com/MiguelBarro/CppCoroutines/actions/runs/14553506438/job/40827454188#step:3:82)f06 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x431f06)
#39 0x00007ff79027f683 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x42f683)
#40 0x00007ff791a4c[82](https://github.com/MiguelBarro/CppCoroutines/actions/runs/14553506438/job/40827454188#step:3:83)8 (C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin\clang-cl.exe+0x1bfc828)
#41 0x00007ffe114f4cb0 (C:\Windows\System32\KERNEL32.DLL+0x14cb0)
#42 0x00007ffe11d3edcb (C:\Windows\SYSTEM32\ntdll.dll+0x7edcb)
clang-cl : error : clang frontend command failed due to signal (use -v to see invocation) [D:\a\CppCoroutines\CppCoroutines\examples\build\Gor\client.vcxproj]
clang version 19.1.1
Target: amd64-pc-windows-msvc
Thread model: posix
InstalledDir: C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm\x64\bin
clang-cl : message : diagnostic msg: [D:\a\CppCoroutines\CppCoroutines\examples\build\Gor\client.vcxproj]
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-cl : message : diagnostic msg: C:\Users\RUNNER~1\AppData\Local\Temp\client-85519e.cpp [D:\a\CppCoroutines\CppCoroutines\examples\build\Gor\client.vcxproj]
clang-cl : message : diagnostic msg: C:\Users\RUNNER~1\AppData\Local\Temp\client-85519e.sh [D:\a\CppCoroutines\CppCoroutines\examples\build\Gor\client.vcxproj]
clang-cl : message : diagnostic msg: [D:\a\CppCoroutines\CppCoroutines\examples\build\Gor\client.vcxproj]
********************
```
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