<html>
    <head>
      <base href="https://bugs.llvm.org/">
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Bitcode tests crash in Function Pass Manager"
   href="https://bugs.llvm.org/show_bug.cgi?id=44763">44763</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Bitcode tests crash in Function Pass Manager
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Test Suite
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>10.0
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>release blocker
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Programs Tests
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>dimitry@andric.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>During test runs of 10.0.0 rc1, I could not compile the test-suite at all, as
the 10.0.0 rc1 clang executable consistently crashes on all of the Bitcode
source:

$ gmake
Scanning dependencies of target timeit-target
[  0%] Building C object tools/CMakeFiles/timeit-target.dir/timeit.c.o
[  0%] Linking C executable timeit-target
[  0%] Built target timeit-target
Scanning dependencies of target fpcmp-target
[  0%] Building C object tools/CMakeFiles/fpcmp-target.dir/fpcmp.c.o
[  0%] Linking C executable fpcmp-target
[  0%] Built target fpcmp-target
Scanning dependencies of target build-timeit
[  0%] [TEST_SUITE_HOST_CC] Compiling host source timeit.c
[  0%] [TEST_SUITE_HOST_CC] Linking host executable timeit
[  0%] Built target build-timeit
Scanning dependencies of target build-HashProgramOutput.sh
[  0%] Generating HashProgramOutput.sh
[  0%] Built target build-HashProgramOutput.sh
Scanning dependencies of target build-fpcmp
[  0%] [TEST_SUITE_HOST_CC] Compiling host source fpcmp.c
[  0%] [TEST_SUITE_HOST_CC] Linking host executable fpcmp
[  0%] Built target build-fpcmp
Scanning dependencies of target halide_local_laplacian
[  0%] Building CXX object
Bitcode/Benchmarks/Halide/local_laplacian/CMakeFiles/halide_local_laplacian.dir/driver.cpp.o
[  0%] Building CXX object
Bitcode/Benchmarks/Halide/local_laplacian/CMakeFiles/halide_local_laplacian.dir/__/common/x86_halide_runtime.bc.o
Stack dump:
0.      Program arguments:
/home/dim/llvm/10.0.0/dist/clang+llvm-10.0.0-rc1-amd64-unknown-freebsd11/bin/clang++
-cc1 -triple x86_64-unknown-freebsd11.3 -emit-obj -disable-free
-disable-llvm-verifier -discard-value-names -main-file-name
x86_halide_runtime.bc -mrelocation-model static -mthread-model posix
-mframe-pointer=all -fno-rounding-math -masm-verbose -mconstructor-aliases
-munwind-tables -fno-use-init-array -target-cpu x86-64 -dwarf-column-info
-fno-split-dwarf-inlining -debugger-tuning=gdb -resource-dir
/home/dim/llvm/10.0.0/dist/clang+llvm-10.0.0-rc1-amd64-unknown-freebsd11/lib/clang/10.0.0
-O3 -Werror=date-time -w -std=c++11 -fdebug-compilation-dir
/home/dim/llvm/10.0.0/build/Bitcode/Benchmarks/Halide/local_laplacian
-ferror-limit 19 -fmessage-length 200 -fgnuc-version=4.2.1
-fobjc-runtime=gnustep -fdiagnostics-show-option -fcolor-diagnostics
-vectorize-loops -vectorize-slp -faddrsig -o
CMakeFiles/halide_local_laplacian.dir/__/common/x86_halide_runtime.bc.o -x ir
/home/dim/llvm/10.0.0/llvm-test-suite/Bitcode/Benchmarks/Halide/common/x86_halide_runtime.bc
1.      Per-module optimization passes
2.      Running pass 'Function Pass Manager' on module
'/home/dim/llvm/10.0.0/llvm-test-suite/Bitcode/Benchmarks/Halide/common/x86_halide_runtime.bc'.
3.      Running pass 'Function Alias Analysis Results' on function
'@halide_set_custom_malloc'
#0 0x0000000003454b78 llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(+0x3454b78)
#1 0x0000000003452bc8 llvm::sys::RunSignalHandlers() (clang++: error: unable to
execute command: Segmentation fault (core dumped)
clang++: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 10.0.0 (<a href="mailto:dim@tensor.andric.com">dim@tensor.andric.com</a>:git/home-dim.git
7fbc6358ad2b7eb9bac5260ed8e4e206929b7e7b)
Target: x86_64-unknown-freebsd11.3
Thread model: posix
InstalledDir:
/home/dim/llvm/10.0.0/dist/clang+llvm-10.0.0-rc1-amd64-unknown-freebsd11/bin
clang++: note: diagnostic msg: PLEASE submit a bug report to
<a href="https://bugs.llvm.org/">https://bugs.llvm.org/</a> and include the crash backtrace, preprocessed source,
and associated run script.
clang++: note: diagnostic msg: Error generating preprocessed source(s) - no
preprocessable inputs.
gmake[2]: ***
[Bitcode/Benchmarks/Halide/local_laplacian/CMakeFiles/halide_local_laplacian.dir/build.make:87:
Bitcode/Benchmarks/Halide/local_laplacian/CMakeFiles/halide_local_laplacian.dir/__/common/x86_halide_runtime.bc.o]
Error 254
gmake[1]: *** [CMakeFiles/Makefile2:2781:
Bitcode/Benchmarks/Halide/local_laplacian/CMakeFiles/halide_local_laplacian.dir/all]
Error 2
gmake: *** [Makefile:130: all] Error 2

Gdb backtrace (unforunately no symbols are available in the test-release.sh
builds):

Starting program:
/home/dim/llvm/10.0.0/dist/clang+llvm-10.0.0-rc1-amd64-unknown-freebsd11/bin/clang++
-cc1 -triple x86_64-unknown-freebsd11.3 -emit-obj -disable-free
-disable-llvm-verifier -discard-value-names -main-file-name
x86_halide_runtime.bc -mrelocation-model static -mthread-model posix
-mframe-pointer=all -fno-rounding-math -masm-verbose -mconstructor-aliases
-munwind-tables -fno-use-init-array -target-cpu x86-64 -dwarf-column-info
-fno-split-dwarf-inlining -debugger-tuning=gdb -resource-dir
/home/dim/llvm/10.0.0/dist/clang+llvm-10.0.0-rc1-amd64-unknown-freebsd11/lib/clang/10.0.0
-O3 -Werror=date-time -w -std=c++11 -fdebug-compilation-dir
/home/dim/llvm/10.0.0/build/Bitcode/Benchmarks/Halide/local_laplacian
-ferror-limit 19 -fmessage-length 200 -fgnuc-version=4.2.1
-fobjc-runtime=gnustep -fdiagnostics-show-option -fcolor-diagnostics
-vectorize-loops -vectorize-slp -faddrsig -o
CMakeFiles/halide_local_laplacian.dir/__/common/x86_halide_runtime.bc.o -x ir
/home/dim/llvm/10.0.0/llvm-test-suite/Bitcode/Benchmarks/Halide/common/x86_halide_runtime.bc

Program received signal SIGSEGV, Segmentation fault.
0x000000010000000f in ?? ()
(gdb) bt
#0  0x000000010000000f in ?? ()
#1  0x00000000028ca9c0 in
llvm::AAResultsWrapperPass::runOnFunction(llvm::Function&) ()
#2  0x0000000002e8edc0 in llvm::FPPassManager::runOnFunction(llvm::Function&)
()
#3  0x0000000002e8f1d3 in llvm::FPPassManager::runOnModule(llvm::Module&) ()
#4  0x0000000002e8f6a9 in llvm::legacy::PassManagerImpl::run(llvm::Module&) ()
#5  0x00000000035de7dc in clang::EmitBackendOutput(clang::DiagnosticsEngine&,
clang::HeaderSearchOptions const&, clang::CodeGenOptions const&,
clang::TargetOptions const&, clang::LangOptions const&, llvm::DataLayout
const&, llvm::Module*, clang::BackendAction,
std::__1::unique_ptr<llvm::raw_pwrite_stream,
std::__1::default_delete<llvm::raw_pwrite_stream> >) ()
#6  0x0000000003c17e67 in clang::CodeGenAction::ExecuteAction() ()
#7  0x0000000003b7abca in clang::FrontendAction::Execute() ()
#8  0x0000000003aea761 in
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) ()
#9  0x0000000003c12905 in
clang::ExecuteCompilerInvocation(clang::CompilerInstance*) ()
#10 0x0000000001cbaf0e in cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) ()
#11 0x0000000001cb8f65 in ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&)
()
#12 0x0000000001cb8cf4 in main ()</pre>
        </div>
      </p>


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