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<base href="https://llvm.org/bugs/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - ICE in llvm::BranchProbability::BranchProbability on several SPEC CPU2006 benchmarks (LTO+FDO)"
href="https://llvm.org/bugs/show_bug.cgi?id=25186">25186</a>
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<tr>
<th>Summary</th>
<td>ICE in llvm::BranchProbability::BranchProbability on several SPEC CPU2006 benchmarks (LTO+FDO)
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>new bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>miyuki-llvm@miyuki.ru
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Hi!
Recent versions of Clang started to ICE on feedback stage when compiling SPEC
CPU2006 benchmarks.
This build is OK:
<a href="http://llvm.org/svn/llvm-project/compiler-rt/trunk">http://llvm.org/svn/llvm-project/compiler-rt/trunk</a> : 249870
<a href="http://llvm.org/svn/llvm-project/cfe/trunk">http://llvm.org/svn/llvm-project/cfe/trunk</a> : 249872
<a href="http://llvm.org/svn/llvm-project/llvm/trunk">http://llvm.org/svn/llvm-project/llvm/trunk</a> : 249879
This build ICEs
<a href="http://llvm.org/svn/llvm-project/compiler-rt/trunk">http://llvm.org/svn/llvm-project/compiler-rt/trunk</a> : 250063
<a href="http://llvm.org/svn/llvm-project/cfe/trunk">http://llvm.org/svn/llvm-project/cfe/trunk</a> : 250094
<a href="http://llvm.org/svn/llvm-project/llvm/trunk">http://llvm.org/svn/llvm-project/llvm/trunk</a> : 250089
on the following benchmarks
429.mcf
433.milc
445.gobmk
447.dealII
453.povray
456.hmmer
471.omnetpp
482.sphinx3
With similar errors (example for 445.gobmk):
1444702057.00: 0 clang-3.8 0x00000000017adbc5
llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 37
1444702057.00: 1 clang-3.8 0x00000000017ace36
llvm::sys::RunSignalHandlers() + 54
1444702057.00: 2 clang-3.8 0x00000000017ad025
1444702057.00: 3 libpthread.so.0 0x00002ac6310d68d0
1444702057.00: 4 clang-3.8 0x0000000001756f8c
llvm::BranchProbability::BranchProbability(unsigned int, unsigned int) + 28
1444702057.00: 5 clang-3.8 0x000000000103e5ae
llvm::BranchProbabilityInfo::getEdgeProbability(llvm::BasicBlock const*,
llvm::BasicBlock const*) const + 46
1444702057.00: 6 clang-3.8 0x000000000167e2e8
1444702057.00: 7 clang-3.8 0x00000000016805bf
1444702057.00: 8 clang-3.8 0x00000000014840ba
llvm::FPPassManager::runOnFunction(llvm::Function&) + 634
1444702057.00: 9 clang-3.8 0x0000000001ebacdb
1444702057.00: 10 clang-3.8 0x0000000001484878
llvm::legacy::PassManagerImpl::run(llvm::Module&) + 1112
1444702057.00: 11 clang-3.8 0x00000000018ba8c1
clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::CodeGenOptions
const&, clang::TargetOptions const&, clang::LangOptions const&,
llvm::StringRef, llvm::Module*, clang::BackendAction, llvm::raw_pwrite_stream*)
+ 3265
1444702057.00: 12 clang-3.8 0x0000000001db0f08
1444702057.00: 13 clang-3.8 0x000000000203750d
clang::ParseAST(clang::Sema&, bool, bool) + 845
1444702057.00: 14 clang-3.8 0x0000000001b4f4c6
clang::FrontendAction::Execute() + 262
1444702057.01: 15 clang-3.8 0x0000000001b2e069
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 297
1444702057.01: 16 clang-3.8 0x0000000001bcb433
clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 1939
1444702057.01: 17 clang-3.8 0x0000000000867a20
cc1_main(llvm::ArrayRef<char const*>, char const*, void*) + 2576
1444702057.01: 18 clang-3.8 0x0000000000828744 main + 5844
1444702057.01: 19 libc.so.6 0x00002ac631d42b45 __libc_start_main + 245
1444702057.01: 20 clang-3.8 0x0000000000865674
1444702057.01: Stack dump:
1444702057.01: 0. Program arguments: /opt/clang-trunk/bin/clang-3.8 -cc1
-triple x86_64-unknown-linux-gnu -flto -emit-llvm-bc -disable-free
-disable-llvm-verifier -main-file-name combination.c -mrelocation-model static
-mthread-model posix -menable-no-infs -menable-no-nans -menable-unsafe-fp-math
-fno-signed-zeros -freciprocal-math -ffp-contract=fast -ffast-math
-masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array
-target-cpu haswell -target-feature -sse4a -target-feature -avx512bw
-target-feature +cx16 -target-feature -tbm -target-feature +xsave
-target-feature -fma4 -target-feature -avx512vl -target-feature -prfchw
-target-feature +bmi2 -target-feature -adx -target-feature -xsavec
-target-feature +fsgsbase -target-feature +avx -target-feature -avx512cd
-target-feature -avx512pf -target-feature -rtm -target-feature +popcnt
-target-feature +fma -target-feature +bmi -target-feature +aes -target-feature
+rdrnd -target-feature -xsaves -target-feature +sse4.1 -target-feature +sse4.2
-target-feature +avx2 -target-feature -avx512er -target-feature +sse
-target-feature +lzcnt -target-feature +pclmul -target-feature -avx512f
-target-feature +f16c -target-feature +ssse3 -target-feature +mmx
-target-feature +cmov -target-feature -xop -target-feature -rdseed
-target-feature +movbe -target-feature -hle -target-feature +xsaveopt
-target-feature -sha -target-feature +sse2 -target-feature +sse3
-target-feature -avx512dq -momit-leaf-frame-pointer -dwarf-column-info
-fprofile-instr-use=default.profdata -coverage-file
/home/jenkins/workspace/build-and-run-spec-clang/cpu2006/benchspec/CPU2006/445.gobmk/build/build_peak_clang-trunk-64bit.0000/engine/combination.o
-resource-dir /opt/clang-trunk/bin/../lib/clang/3.8.0 -D SPEC_CPU -D NDEBUG -D
HAVE_CONFIG_H -I . -I .. -I ../include -I ./include -internal-isystem
/usr/local/include -internal-isystem
/opt/clang-trunk/bin/../lib/clang/3.8.0/include -internal-externc-isystem
/usr/include/x86_64-linux-gnu -internal-externc-isystem /include
-internal-externc-isystem /usr/include -O3 -w -fdebug-compilation-dir
/home/jenkins/workspace/build-and-run-spec-clang/cpu2006/benchspec/CPU2006/445.gobmk/build/build_peak_clang-trunk-64bit.0000
-ferror-limit 19 -fmessage-length 0 -fobjc-runtime=gcc
-fdiagnostics-show-option -vectorize-loops -vectorize-slp -o
engine/combination.o -x c engine/combination.c
1444702057.01: 1. <eof> parser at end of file
1444702057.01: 2. Per-module optimization passes
1444702057.01: 3. Running pass 'CallGraph Pass Manager' on module
'engine/combination.c'.
1444702057.01: 4. Running pass 'Jump Threading' on function
'@atari_atari_find_defense_moves'
1444702057.01: clang-3.8: error: unable to execute command: Floating point
exception
1444702057.01: clang-3.8: error: clang frontend command failed due to signal
(use -v to see invocation)
1444702057.01: clang version 3.8.0 (trunk 250094)
1444702057.01: Target: x86_64-unknown-linux-gnu
1444702057.01: Thread model: posix
1444702057.01: InstalledDir: /opt/clang-trunk/bin
1444702057.01: clang-3.8: note: diagnostic msg: PLEASE submit a bug report to
<a href="http://llvm.org/bugs/">http://llvm.org/bugs/</a> and include the crash backtrace, preprocessed source, and
associated run script.
1444702057.02: clang-3.8: note: diagnostic msg:
1444702057.02: ********************
1444702057.02: PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
1444702057.02: Preprocessed source(s) and associated run script(s) are located
at:
1444702057.02: clang-3.8: note: diagnostic msg: /tmp/combination-0f057b.c
1444702057.02: clang-3.8: note: diagnostic msg: /tmp/combination-0f057b.sh
I'm not sure, if I can provide a complete reproducer (due to SPEC license
restrictions).
My next build was:
<a href="http://llvm.org/svn/llvm-project/compiler-rt/trunk">http://llvm.org/svn/llvm-project/compiler-rt/trunk</a> : 250200
<a href="http://llvm.org/svn/llvm-project/cfe/trunk">http://llvm.org/svn/llvm-project/cfe/trunk</a> : 250203
<a href="http://llvm.org/svn/llvm-project/llvm/trunk">http://llvm.org/svn/llvm-project/llvm/trunk</a> : 250219
447.dealII and 471.omnetpp did not cause ICE any more, but the same problem
started to show up on 458.sjeng.</pre>
</div>
</p>
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