https://llvm.org/bugs/show_bug.cgi?id=25344
Bug ID: 25344
Summary: LNT build fails with -polly-position=before-vectorizer
Product: Projects
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Polly
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Command to invoke:
bin/lnt runtest nt -j8 \
--sandbox "${SANDBOX}" \
--cc clang --cxx clang++ --mllvm -polly \
--test-suite llvm/projects/test-suite 0j8 \
--mllvm -polly-position=before-vectorizer
Failing tests:
FAIL: MultiSource/Benchmarks/7zip/7zip-benchmark.compile_time (1 of 1992)
FAIL: MultiSource/Benchmarks/sim/sim.execution_time (499 of 1992)
FAIL:
SingleSource/Benchmarks/Polybench/medley/reg_detect/reg_detect.execution_time
(500 of 1992)
7zip-benchmark fails with an assertion:
llvm::ScalarEvolution::getConstantEvolutionLoopExitValue(llvm::PHINode*, const
llvm::APInt&, const llvm::Loop*): Assertion `PN->getNumIncomingValues() == 2 &&
"Follows from having one latch!"' failed.
0 clang-3.8 0x00000000019d57f8
llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 56
1 clang-3.8 0x00000000019d4106 llvm::sys::RunSignalHandlers() + 54
2 clang-3.8 0x00000000019d433a
3 libpthread.so.0 0x00007fb09d634d10
4 libc.so.6 0x00007fb09c7d4267 gsignal + 55
5 libc.so.6 0x00007fb09c7d5eca abort + 362
6 libc.so.6 0x00007fb09c7cd03d
7 libc.so.6 0x00007fb09c7cd0f2
8 clang-3.8 0x0000000001289dcf
9 clang-3.8 0x00000000012a629a
10 clang-3.8 0x00000000012a6a89
llvm::ScalarEvolution::getSCEVAtScope(llvm::SCEV const*, llvm::Loop const*) +
201
[...]
sim and reg_detect faiil because the output differs from the reference output.
Using trunk revision 251341.
Also see
http://gcc12.fsffrance.org:8011/builders/perf-x86_64-penryn-O3-polly/builds/389
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