<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/56859>56859</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            clang crashes at -O1 and above on x86_64-linux-gnu: Assertion `hiBit <= BitWidth && "hiBit out of range"' failed 
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          zhendongsu
      </td>
    </tr>
</table>

<pre>
    It seems to be a recent regression from 14.*. 
See also the already closed and fixed https://github.com/llvm/llvm-project/issues/56424. 

Compiler Explorer: https://godbolt.org/z/zhsPMM89x

```
[514] % clangtk -v
clang version 16.0.0 (https://github.com/llvm/llvm-project.git 0ed2bd9311fd54f0b414549b96a2cd4036ef0945)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /local/suz-local/opfuzz/bin
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/10
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/11
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6.5.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7.5.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/8
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/11
Candidate multilib: .;@m64
Selected multilib: .;@m64
[515] % 
[515] % clangtk -O1 -w small.c
clang-16: /local/suz-local/software/clangbuild/llvm-project/llvm/include/llvm/ADT/APInt.h:1318: void llvm::APInt::setBits(unsigned int, unsigned int): Assertion `hiBit <= BitWidth && "hiBit out of range"' failed.
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: /local/suz-local/software/local/clang-trunk/bin/clang-16 -cc1 -triple x86_64-unknown-linux-gnu -emit-obj --mrelax-relocations -disable-free -clear-ast-before-backend -main-file-name small.c -mrelocation-model pic -pic-level 2 -pic-is-pie -mframe-pointer=none -fmath-errno -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -mllvm -treat-scalable-fixed-error-as-warning -debugger-tuning=gdb -fcoverage-compilation-dir=/local/suz-local/software/emitesting/bugs/20220730-clangtk-m64-O3-Weverything-pipe-fPIC-build-232318/delta -resource-dir /local/suz-local/software/local/clang-trunk/lib/clang/16.0.0 -I /usr/local/include/csmith -I /local/suz-local/software/local/include -internal-isystem /local/suz-local/software/local/clang-trunk/lib/clang/16.0.0/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/11/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -O1 -w -fdebug-compilation-dir=/local/suz-local/software/emitesting/bugs/20220730-clangtk-m64-O3-Weverything-pipe-fPIC-build-232318/delta -ferror-limit 19 -fgnuc-version=4.2.1 -fcolor-diagnostics -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /tmp/small-beaebc.o -x c small.c
1.      <eof> parser at end of file
2.      Code generation
3.      Running pass 'Function Pass Manager' on module 'small.c'.
4.      Running pass 'X86 DAG->DAG Instruction Selection' on function '@main'
 #0 0x0000561269102281 PrintStackTraceSignalHandler(void*) Signals.cpp:0:0
 #1 0x00005612690ff8f4 SignalHandler(int) Signals.cpp:0:0
 #2 0x00007fb5b64fc980 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x12980)
 #3 0x00007fb5b5129e87 raise /build/glibc-CVJwZb/glibc-2.27/signal/../sysdeps/unix/sysv/linux/raise.c:51:0
 #4 0x00007fb5b512b7f1 abort /build/glibc-CVJwZb/glibc-2.27/stdlib/abort.c:81:0
 #5 0x00007fb5b511b3fa __assert_fail_base /build/glibc-CVJwZb/glibc-2.27/assert/assert.c:89:0
 #6 0x00007fb5b511b472 (/lib/x86_64-linux-gnu/libc.so.6+0x30472)
 #7 0x000056126a064b1a (/local/suz-local/software/local/clang-trunk/bin/clang-16+0x4cc1b1a)
 #8 0x000056126a064c1e (anonymous namespace)::DAGCombiner::MatchRotatePosNeg(llvm::SDValue, llvm::SDValue, llvm::SDValue, llvm::SDValue, llvm::SDValue, bool, unsigned int, unsigned int, llvm::SDLoc const&) DAGCombiner.cpp:0:0
 #9 0x000056126a077682 (anonymous namespace)::DAGCombiner::MatchRotate(llvm::SDValue, llvm::SDValue, llvm::SDLoc const&) DAGCombiner.cpp:0:0
#10 0x000056126a0e02b2 (anonymous namespace)::DAGCombiner::visitOR(llvm::SDNode*) DAGCombiner.cpp:0:0
#11 0x000056126a0fe6ad (anonymous namespace)::DAGCombiner::combine(llvm::SDNode*) DAGCombiner.cpp:0:0
#12 0x000056126a0fff39 llvm::SelectionDAG::Combine(llvm::CombineLevel, llvm::AAResults*, llvm::CodeGenOpt::Level) (/local/suz-local/software/local/clang-trunk/bin/clang-16+0x4d5cf39)
#13 0x000056126a21d1d7 llvm::SelectionDAGISel::CodeGenAndEmitDAG() (/local/suz-local/software/local/clang-trunk/bin/clang-16+0x4e7a1d7)
#14 0x000056126a221338 llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) (/local/suz-local/software/local/clang-trunk/bin/clang-16+0x4e7e338)
#15 0x000056126a223322 llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&) (.part.0) SelectionDAGISel.cpp:0:0
#16 0x0000561267b111ac (anonymous namespace)::X86DAGToDAGISel::runOnMachineFunction(llvm::MachineFunction&) X86ISelDAGToDAG.cpp:0:0
#17 0x00005612682d4025 llvm::MachineFunctionPass::runOnFunction(llvm::Function&) (.part.0) MachineFunctionPass.cpp:0:0
#18 0x0000561268826573 llvm::FPPassManager::runOnFunction(llvm::Function&) (/local/suz-local/software/local/clang-trunk/bin/clang-16+0x3483573)
#19 0x00005612688267a1 llvm::FPPassManager::runOnModule(llvm::Module&) (/local/suz-local/software/local/clang-trunk/bin/clang-16+0x34837a1)
#20 0x0000561268827095 llvm::legacy::PassManagerImpl::run(llvm::Module&) (/local/suz-local/software/local/clang-trunk/bin/clang-16+0x3484095)
#21 0x00005612694b645f clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::HeaderSearchOptions const&, clang::CodeGenOptions const&, clang::TargetOptions const&, clang::LangOptions const&, llvm::StringRef, llvm::Module*, clang::BackendAction, std::unique_ptr<llvm::raw_pwrite_stream, std::default_delete<llvm::raw_pwrite_stream>>) (/local/suz-local/software/local/clang-trunk/bin/clang-16+0x411345f)
#22 0x000056126a376752 clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) (/local/suz-local/software/local/clang-trunk/bin/clang-16+0x4fd3752)
#23 0x000056126b067f69 clang::ParseAST(clang::Sema&, bool, bool) (/local/suz-local/software/local/clang-trunk/bin/clang-16+0x5cc4f69)
#24 0x0000561269c2f991 clang::FrontendAction::Execute() (/local/suz-local/software/local/clang-trunk/bin/clang-16+0x488c991)
#25 0x0000561269bb85ae clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/local/suz-local/software/local/clang-trunk/bin/clang-16+0x48155ae)
#26 0x0000561269cf3638 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/local/suz-local/software/local/clang-trunk/bin/clang-16+0x4950638)
#27 0x000056126666877d cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/local/suz-local/software/local/clang-trunk/bin/clang-16+0x12c577d)
#28 0x0000561266661f43 ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&) driver.cpp:0:0
#29 0x0000561266664db6 clang_main(int, char**) (/local/suz-local/software/local/clang-trunk/bin/clang-16+0x12c1db6)
#30 0x00007fb5b510cc87 __libc_start_main /build/glibc-CVJwZb/glibc-2.27/csu/../csu/libc-start.c:344:0
#31 0x000056126666149a _start (/local/suz-local/software/local/clang-trunk/bin/clang-16+0x12be49a)
clang-16: error: unable to execute command: Aborted
clang-16: error: clang frontend command failed due to signal (use -v to see invocation)
clang version 16.0.0 (https://github.com/llvm/llvm-project.git 0ed2bd9311fd54f0b414549b96a2cd4036ef0945)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /local/suz-local/opfuzz/bin
clang-16: note: diagnostic msg: 
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-16: note: diagnostic msg: /tmp/small-f90940.c
clang-16: note: diagnostic msg: /tmp/small-f90940.sh
clang-16: note: diagnostic msg: 

********************
[516] % 
[516] % cat small.c
int a;
int main() {
  int b = a || 0, c = 1 >> a | (0 || &a) << b;
  a = c;
  return 0;
}
```
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJzlWltT4zoS_jXhReWU77EfeAgJzLAFAwWcma19ScmynPiMY2ctm4H59fu1bAc7ZLjMhK2tWiok1q37626puyU5KuLH4_OKKSnXilUFiyTjrJRC5hV-lqVUKi1ylpTFmlnueGRPx2xkzkfm9Faia6YKVq3ooZQ8fmQiK5SMGc9jlqQPeFpV1UaNnOnIPsNnmVarOhqLYo1Clt13P8amLP6WokIxVaqWCg-e79pux6z5nhXrTZrJkp0-bLKilCUI73Io4qjIqnFRLlH6Sf8rdX15GYQPfUoj32w_TdE78Sx35M3ZyPYgBM-X1Xdm3DetuszuZalVYfljc2yiY_A-2cbowEwZ21EcOpaVxJ6bmJFruZ4bRqHPbRG7puPLxAxdb2SHDe87Xi5lRXI-BP7Cd406_54XP3IjS_P6wVjmddtvRQZg6yKWGfXeFCptJT7PVcWzTMbzVCuMcBWCZ_hV9U-jey42Sf2TFBaleTPwrKhhRwFjpjGvJPs0m7G0IcYrqKIlVquSSKYRKUEIsqEf-D2A9lnwhwRb2fskLfMDaFqHp-l_AMmxN_4A6ScfQPJjkAadB8qwruBkDmHz2RbZus6qlEaBynjknIxcc-27Oyxf6qS9idd5k311Ww9zZTHjB1NrIB-LnrcxLP-FpaqKpPrBS4lH3Tuq0yx-7kpbJ5TmIqtj-VQxnd_R9_V5Xo1XYGM5VkDc7os0ZroPfJoz1R2aRyWrk7SCVw7qXKXLHApI0WbP2LAcEpmpUrIkMzD411WKgWzkzEbOnOHxWxpXK8jl44Mfu2kvavwnrIQswGmP7AlLODx9PG50cn1xOr09ZaqO1ujNWVQvEZ02RVlRzPr9GKMDVasfHcdEydWKRVx8r0ouJEm4AaOyEAiEkFIVddlU00iuVCFSTvOhrHOmRJluqhbybQUiLK7XG0Kmq0w0hddlsSz5msGv12tEWfU2O3dVzeyowO5766q7OstnhhCYTxVQZPKX8YIZEko0iuhvZhjrUmb8wcA36JPNFDPiVPEok0ZSIsIbIpO8NLiqjEgmiLkGKUdCeGPN09xIYCUj52vZTWKmabbUDB2P2CZFNb6MTN6jaDeFVOEHHNYJ9CGNTYEpRCF9nhc5qpM1r1aGLMu8QCHZGKLIySiYknPMLSPJC6Mkp5JCeOoLSuiioBtRFYCcpVxJyJPU-Y80j42KpIK65-Bf6bBqiE1NejJ8F1V1LnXFUuayJMRrmjakT8krQ0H_jVooryFcxEMZsE8OBFCbxKxcypIIoQJ8lnEE7qJA5sCXoK2zl0YvMYXi-etmJ1NJVRE9WLte0qS1Tds2J45ptF7EgOMxrhzjG5RbPlYr0scm3QDp9fnM0L7BsB2bFrl9BnNUnMHgzUwmIL89-xrPquvIkTZ5kXHec73tsCcPJBQEWrWd3si0W5-Gnh85zzBzHlUl1wcF_hqjvRK92PXVuGOfjcfPv_b0fc5NPtCDeM71SdW7dF4e_X4WXfAyEj3z_6emd9IszyylcGGFqIAChNGm8IDmju2xpRcn9hGAy5d5ARyC3AWPY3TDip4vFsgsFp-nX08X82_TmzN7MTs7X0xvL0EBowvSSQUHD5nI-cFDchmJMfzVAxPDqG6R70cYlEUyck7ZhpcIkoxXjFwpQh_50aanTT1n8JuNI2oSGt3iUMtNnWt_s0HwAf_JWZ0LHWyvqeKS53A1JQVQVMH71ogEKHVY7Ekbntx9tP4Z-Gw-_WQAIX7YeetMiXqT-BCUhnTSsUWZch9OkajNIFHnmMx8MPHn-ZbthxZsGljsusTs0oHxjqLrLTIHnn1GJM0IckD5BzaYSCNY06TGYkPh09T_W9rWgLaZJEHisl1iTT7yMiG7JTRJIi_y3USEgckWCzhHBBC5QHYBQtulvGdhomFT6Z3XWBXkQ07MB8sGle3-jdg4fTYe2mUwQa6TKjLNWZe8LUFMGLOv__jxr2hbtMdQKqaXlqLzEFiQsdzQWkGkeWgq7jUaIMOvJg1jO1PPGgrs7iCJJonFeFRoSd-GpIobbehRmkmww8QbMrEiJ-HQKtdp4YLyukXE3y57M2770LAMhyz9XZbuxH6D7QRZzddWc0wMGVht0p9l3PTdyOIdzT_P1TRTF_kaqA7YBrtshUWqCjiyosd1UStG2Zba6Ow0bNJzLNZZsQYDfSKCzyWvxOqmqJCaXhfqi4R7DZ4S-9v5V57VOov9iMqoKLLnW4Pn5f7gi0IwnbzpnUHIehLtX7rhUE2TiR_Yf6Km31bQu5CT8zKHyKVpR-9Hfp-qtLq62UH9paDIP30TDGsII5E-j98NQzSlP4Bh78BIEpi2R6wLOyDU1Mz2sGzrLmh3MbTPdHojFbbqSuPpt1CE_STzq027xW0Hh4de4rEnINJ2iZPMzkBm24qtePILmc9v9XHeE95pHp8iqSF1EM6Dw5UTDjQDuO4Qrm05cFKvwW1qp1l2wlUqTgDguxrYbJu39BfPwYWRwDoQxtsRxnFs-1VhwOIqv-QCuafscA-EedbWSTNGoldRYhCyXdL714PfxzeJLMvi4rVlibQNNO-KQ2AGLaLR0dsPchAaAzt2Tdtjv6RMiWkP014wL2puD739uAaxMwhs35s4PVxn1zS0S5HfjeiAM9NxAwfYBjMz3AWPlfgG8Jc6xx9atq36IODA1QdumzvAJ2bYnw2ZXHLx2Dz3RDhfb55m6n8Rvgt0A_jD3YSLfYCXNAe0DRxytyfNmddVXW1q-Kqg1zx_2jue5ksdmXyKNL0un7E_kOWt5KVYId7oU7Ynrzfo-hSVXurVXAq90ukCT_u69Jxdhf3Y8kYmw-pO_9Mdgq0Spu2ymDHsBZoWbEP-XcvFpsLEnD0RKvmPxeZHiS3-QtEh2nowKJYJR2ReYMsukX-9PNA5pc_hI4RlOTD3YD4MMxJn4k88e48aZlBpve6WYrPvxK42V80RyF95ujNRprd3GFPJhw8KdknsAOlAlEGiEZn-JPHDvijXdAoBXEOgt3LN27nSpfLN76Ehe0K4QDSAPEg2QmEnYWj1IZ-VpMPtLGxW6IMUtU7hP0CtQSAAYYBxkEOEURR4XA4XcXNNrS9ecwTqPspu-QS_FupDpkdgeYA5kMMf6jpxfCR2fc_XIH4S57491h-ifyZuk_ofGH_omf4wl7MHaQj-gskkZthSL5rTqF5ImZYlfyRH58zEipedP5xqpwInN6hDRe8k6rBiWLbwgHIgRrAjhpW4Dut0P7Pu9Nrrb7DoLO-rpEuOJojukUnPoLhM73-x77LDHaZuHPmN7Tvttbt0oq1V8THasMC3r43twWF7lGMKEUzYYkGnNQgGyAk1vrceHglVd6dmzaNu1HT0QZLjugO9DM8WyRhuyFnD-ODCRxLEt8L373318TU91DndOdElp2wmBMy8XiPYUOOUjuBk_MLw5s2VpHUv3dj2bpXFtabcHC6SdLWSzLjXdVKytLfe-xj_D9-E6Ss3LyhbmbKnSwO2VktNrp1Ff_DpvaLU3nlP7-6ms8_s7vMpO7u6uLj6dv7lEzs7vzi9ZXdXuvrkr0_s5vT66uZu1N00X--7sw4UreBf3ltvO5SS6ftbeo-r2pJ8owqGFyJJCBOa-95seC8JtfoNSxzKHvTuhr_nfY5tHbQ1vO6B82ScXgvZllqvqp3opK1ndBTKIkbvRnBUz_Bhpva6us5iTeLbNNJCM7tecPFc06I3K5CgbXkx6oyxoldTyqouc1DuqkaT-c57cEfy2PK90PHDMHCO4mMHSzPkR1VaZfK4Wfb63Qip6NKKrv70RIqKe0nXQc_O1w_8Hgg7qsvs-E9eJgy88Gh1LAS2f_AygSlM13fsCGVbWrbkQWi7Uh5lPJKZOoZ5Yduj9FjfRgamZfmmb5vj2Is9RC0_lugnPGvkmsiW02xMjOmlw6PyWGPQl5mumaWqUk-NWHh0BC47-ryuVkV5_HMF71zkS1UfacTHGu5_AAh8vIE">