[llvm-bugs] [Bug 43832] New: gvn crashes: Assertion `castIsValid(op, S, Ty) && "Invalid cast!"' failed.

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=43832

            Bug ID: 43832
           Summary: gvn crashes: Assertion `castIsValid(op, S, Ty) &&
                    "Invalid cast!"' 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 22740
  --> https://bugs.llvm.org/attachment.cgi?id=22740&action=edit
fallbackSort.bc

$clang -v
clang version 10.0.0 (https://github.com/llvm/llvm-project.git
7cd301677461b16a1a5a437a6f6be0b5f0125eaf)
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 -mem2reg -loop-unroll -loop-simplifycfg -early-cse -load-store-vectorizer
-indvars -loop-rotate -loop-unroll -break-crit-edges -loop-reduce -gvn
fallbackSort.bc 
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/IR/Instructions.cpp:2749:
static llvm::CastInst* llvm::CastInst::Create(llvm::Instruction::CastOps,
llvm::Value*, llvm::Type*, const llvm::Twine&, llvm::Instruction*): Assertion
`castIsValid(op, S, Ty) && "Invalid cast!"' failed.
Stack dump:
0.      Program arguments:
/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt -mem2reg
-loop-unroll -loop-simplifycfg -early-cse -load-store-vectorizer -indvars
-loop-rotate -loop-unroll -break-crit-edges -loop-reduce -gvn fallbackSort.bc 
1.      Running pass 'Function Pass Manager' on module 'fallbackSort.bc'.
2.      Running pass 'Global Value Numbering' on function '@fallbackSort'
 #0 0x0000562f500bceaa llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x286aeaa)
 #1 0x0000562f500bab84 llvm::sys::RunSignalHandlers()
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x2868b84)
 #2 0x0000562f500bacc2 SignalHandler(int)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x2868cc2)
 #3 0x00007fea89466890 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x12890)
 #4 0x00007fea88118e97 raise
/build/glibc-OTsEL5/glibc-2.27/signal/../sysdeps/unix/sysv/linux/raise.c:51:0
 #5 0x00007fea8811a801 abort /build/glibc-OTsEL5/glibc-2.27/stdlib/abort.c:81:0
 #6 0x00007fea8810a39a __assert_fail_base
/build/glibc-OTsEL5/glibc-2.27/assert/assert.c:89:0
 #7 0x00007fea8810a412 (/lib/x86_64-linux-gnu/libc.so.6+0x30412)
 #8 0x0000562f4f9af3b0 llvm::CastInst::Create(llvm::Instruction::CastOps,
llvm::Value*, llvm::Type*, llvm::Twine const&, llvm::Instruction*)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x215d3b0)
 #9 0x0000562f501f8b45 llvm::VNCoercion::getStoreValueForLoad(llvm::Value*,
unsigned int, llvm::Type*, llvm::Instruction*, llvm::DataLayout const&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x29a6b45)
#10 0x0000562f4fe18570
llvm::gvn::AvailableValue::MaterializeAdjustedValue(llvm::LoadInst*,
llvm::Instruction*, llvm::GVN&) const
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x25c6570)
#11 0x0000562f4fe226a5 llvm::GVN::processLoad(llvm::LoadInst*)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x25d06a5)
#12 0x0000562f4fe24862 llvm::GVN::processInstruction(llvm::Instruction*)
(.part.818)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x25d2862)
#13 0x0000562f4fe251b2 llvm::GVN::processBlock(llvm::BasicBlock*)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x25d31b2)
#14 0x0000562f4fe25637 llvm::GVN::iterateOnFunction(llvm::Function&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x25d3637)
#15 0x0000562f4fe258ef llvm::GVN::runImpl(llvm::Function&,
llvm::AssumptionCache&, llvm::DominatorTree&, llvm::TargetLibraryInfo const&,
llvm::AAResults&, llvm::MemoryDependenceResults*, llvm::LoopInfo*,
llvm::OptimizationRemarkEmitter*)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x25d38ef)
#16 0x0000562f4fe2613e llvm::gvn::GVNLegacyPass::runOnFunction(llvm::Function&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x25d413e)
#17 0x0000562f4f9d01e9 llvm::FPPassManager::runOnFunction(llvm::Function&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x217e1e9)
#18 0x0000562f4f9d0b99 llvm::FPPassManager::runOnModule(llvm::Module&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x217eb99)
#19 0x0000562f4f9cf441 llvm::legacy::PassManagerImpl::run(llvm::Module&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x217d441)
#20 0x0000562f4e15975f main
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x90775f)
#21 0x00007fea880fbb97 __libc_start_main
/build/glibc-OTsEL5/glibc-2.27/csu/../csu/libc-start.c:344:0
#22 0x0000562f4e1f0aea _start
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm-project/build/bin/opt+0x99eaea)
Aborted (core dumped)

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