[llvm-bugs] [Bug 43317] New: licm crashes: Assertion `MSSA->dominates(NewDef, FirstDef) && "Should have dominated the new access"' failed.

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=43317

            Bug ID: 43317
           Summary: licm crashes: Assertion `MSSA->dominates(NewDef,
                    FirstDef) && "Should have dominated the new access"'
                    failed.
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Scalar Optimizations
          Assignee: unassignedbugs at nondot.org
          Reporter: cszide at 163.com
                CC: llvm-bugs at lists.llvm.org

Created attachment 22495
  --> https://bugs.llvm.org/attachment.cgi?id=22495&action=edit
bugpoint-reduced-simplified.ll

$clang -v
clang version 10.0.0 (https://github.com/llvm/llvm-project.git
f457dd2bd437b7d65024194d1f3b4e6c6b0e07ec)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.5.0
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/7.4.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/8
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7.4.0
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64


$opt bugpoint-reduced-simplified.ll -licm
WARNING: You're attempting to print out a bitcode file.
This is inadvisable as it may cause display problems. If
you REALLY want to taste LLVM bitcode first-hand, you
can force output with the `-f' option.

opt:
/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/llvm/lib/Analysis/MemorySSAUpdater.cpp:466:
void llvm::MemorySSAUpdater::fixupDefs(const
llvm::SmallVectorImpl<llvm::WeakVH>&): Assertion `MSSA->dominates(NewDef,
FirstDef) && "Should have dominated the new access"' failed.
Stack dump:
0.      Program arguments:
/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt
bugpoint-reduced-simplified.ll -licm 
1.      Running pass 'Function Pass Manager' on module
'bugpoint-reduced-simplified.bc'.
2.      Running pass 'Loop Pass Manager' on function '@func_24'
3.      Running pass 'Loop Invariant Code Motion' on basic block '%lbl_3029'
 #0 0x000055767e73e5aa llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x27eb5aa)
 #1 0x000055767e73c284 llvm::sys::RunSignalHandlers()
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x27e9284)
 #2 0x000055767e73c3c2 SignalHandler(int)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x27e93c2)
 #3 0x00007efe5251f890 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x12890)
 #4 0x00007efe511d1e97 raise
/build/glibc-OTsEL5/glibc-2.27/signal/../sysdeps/unix/sysv/linux/raise.c:51:0
 #5 0x00007efe511d3801 abort /build/glibc-OTsEL5/glibc-2.27/stdlib/abort.c:81:0
 #6 0x00007efe511c339a __assert_fail_base
/build/glibc-OTsEL5/glibc-2.27/assert/assert.c:89:0
 #7 0x00007efe511c3412 (/lib/x86_64-linux-gnu/libc.so.6+0x30412)
 #8 0x000055767da5a020
llvm::MemorySSAUpdater::fixupDefs(llvm::SmallVectorImpl<llvm::WeakVH> const&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x1b07020)
 #9 0x000055767da5a297 llvm::MemorySSAUpdater::insertDef(llvm::MemoryDef*,
bool)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x1b07297)
#10 0x000055767e4fd98c (anonymous
namespace)::LoopPromoter::doExtraRewritesBeforeFinalDeletion()
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x25aa98c)
#11 0x000055767e83402e
llvm::LoadAndStorePromoter::run(llvm::SmallVectorImpl<llvm::Instruction*>
const&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x28e102e)
#12 0x000055767e4fd046
llvm::promoteLoopAccessesToScalars(llvm::SmallSetVector<llvm::Value*, 8u>
const&, llvm::SmallVectorImpl<llvm::BasicBlock*>&,
llvm::SmallVectorImpl<llvm::Instruction*>&,
llvm::SmallVectorImpl<llvm::MemoryAccess*>&, llvm::PredIteratorCache&,
llvm::LoopInfo*, llvm::DominatorTree*, llvm::TargetLibraryInfo const*,
llvm::Loop*, llvm::AliasSetTracker*, llvm::MemorySSAUpdater*,
llvm::ICFLoopSafetyInfo*, llvm::OptimizationRemarkEmitter*)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x25aa046)
#13 0x000055767e5063dc (anonymous
namespace)::LoopInvariantCodeMotion::runOnLoop(llvm::Loop*, llvm::AAResults*,
llvm::LoopInfo*, llvm::DominatorTree*, llvm::TargetLibraryInfo*,
llvm::TargetTransformInfo*, llvm::ScalarEvolution*, llvm::MemorySSA*,
llvm::OptimizationRemarkEmitter*, bool)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x25b33dc)
#14 0x000055767e506e2a (anonymous
namespace)::LegacyLICMPass::runOnLoop(llvm::Loop*, llvm::LPPassManager&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x25b3e2a)
#15 0x000055767da1b64b llvm::LPPassManager::runOnFunction(llvm::Function&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x1ac864b)
#16 0x000055767e083a29 llvm::FPPassManager::runOnFunction(llvm::Function&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x2130a29)
#17 0x000055767e083b21 llvm::FPPassManager::runOnModule(llvm::Module&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x2130b21)
#18 0x000055767e082c81 llvm::legacy::PassManagerImpl::run(llvm::Module&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x212fc81)
#19 0x000055767c85c44f main
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x90944f)
#20 0x00007efe511b4b97 __libc_start_main
/build/glibc-OTsEL5/glibc-2.27/csu/../csu/libc-start.c:344:0
#21 0x000055767c8df2ba _start
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x98c2ba)
Aborted (core dumped)

-- 
You are receiving this mail because:
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20190914/e6d6a003/attachment.html>