[llvm-bugs] [Bug 43441] New: newgvn crashes: Assertion `MA && "Handed an instruction that MemorySSA doesn't recognize?"' failed.

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=43441

            Bug ID: 43441
           Summary: newgvn crashes: Assertion `MA && "Handed an
                    instruction that MemorySSA doesn't recognize?"'
                    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 22569
  --> https://bugs.llvm.org/attachment.cgi?id=22569&action=edit
bugpoint-reduced-simplified.bc

$clang -v
clang version 10.0.0 (trunk 372743)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/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.bc -newgvn
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/llvm2/include/llvm/Analysis/MemorySSA.h:1027:
llvm::MemoryAccess* llvm::MemorySSAWalker::getClobberingMemoryAccess(const
llvm::Instruction*): Assertion `MA && "Handed an instruction that MemorySSA
doesn't recognize?"' failed.
Stack dump:
0.      Program arguments:
/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt
bugpoint-reduced-simplified.bc -newgvn 
1.      Running pass 'Function Pass Manager' on module
'bugpoint-reduced-simplified.bc'.
2.      Running pass 'Global Value Numbering' on function '@print_long_format'
 #0 0x000055555ad9a32a llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt+0x278232a)
 #1 0x000055555ad98004 llvm::sys::RunSignalHandlers()
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt+0x2780004)
 #2 0x000055555ad98142 SignalHandler(int)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt+0x2780142)
 #3 0x00007f49b98ed890 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x12890)
 #4 0x00007f49b859fe97 raise
/build/glibc-OTsEL5/glibc-2.27/signal/../sysdeps/unix/sysv/linux/raise.c:51:0
 #5 0x00007f49b85a1801 abort /build/glibc-OTsEL5/glibc-2.27/stdlib/abort.c:81:0
 #6 0x00007f49b859139a __assert_fail_base
/build/glibc-OTsEL5/glibc-2.27/assert/assert.c:89:0
 #7 0x00007f49b8591412 (/lib/x86_64-linux-gnu/libc.so.6+0x30412)
 #8 0x000055555ac22c73 (anonymous
namespace)::NewGVN::performSymbolicEvaluation(llvm::Value*,
llvm::SmallPtrSetImpl<llvm::Value*>&) const (.isra.1373.part.1374)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt+0x260ac73)
 #9 0x000055555ac2a105 (anonymous
namespace)::NewGVN::iterateTouchedInstructions()
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt+0x2612105)
#10 0x000055555ac2ff59 (anonymous namespace)::NewGVN::runGVN()
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt+0x2617f59)
#11 0x000055555ac31d7f (anonymous
namespace)::NewGVNLegacyPass::runOnFunction(llvm::Function&) (.part.1396)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt+0x2619d7f)
#12 0x000055555a6d8d09 llvm::FPPassManager::runOnFunction(llvm::Function&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt+0x20c0d09)
#13 0x000055555a6d8e01 llvm::FPPassManager::runOnModule(llvm::Module&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt+0x20c0e01)
#14 0x000055555a6d7f61 llvm::legacy::PassManagerImpl::run(llvm::Module&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt+0x20bff61)
#15 0x0000555558ea96ff main
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt+0x8916ff)
#16 0x00007f49b8582b97 __libc_start_main
/build/glibc-OTsEL5/glibc-2.27/csu/../csu/libc-start.c:344:0
#17 0x0000555558f2151a _start
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt+0x90951a)
Aborted (core dumped)

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