Reduced from https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33395

define void @objsize1_custom_idx() {
entry:
  %A = alloca i8, i32 undef, align 1
  %G1 = getelementptr i8, i8* %A, i8 undef
  %ptr2 = getelementptr inbounds i8, i8* %G1, i32 2
  %calc_size = call i64 @llvm.objectsize.i64.p0i8(i8* %ptr2, i1 false, i1 true, i1 true)
  ret void
}
declare i64 @llvm.objectsize.i64.p0i8(i8*, i1 immarg, i1 immarg, i1 immarg)

llc -mtriple=x86_64-- 

        .text
        .file   "fuzz.ll"
llc: /home/simon/LLVM/llvm-project/llvm/lib/IR/Constants.cpp:2277: static llvm::Constant* llvm::ConstantExpr::get(unsigned int, llvm::Constant*, llvm::Constant*, unsigned int, llvm::Type*): Assertion `C1->getType() == C2->getType() && "Operand types in binary constant expression should match"' failed.
PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash backtrace.
Stack dump:
0.      Program arguments: llc -mtriple=x86_64-- /mnt/e/llvm/fuzz.ll -o -
1.      Running pass 'Function Pass Manager' on module '/mnt/e/llvm/fuzz.ll'.
2.      Running pass 'Lower constant intrinsics' on function '@objsize1_custom_idx'
 #0 0x000056354779abc1 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) /home/simon/LLVM/llvm-project/llvm/lib/Support/Unix/Signals.inc:569:3
 #1 0x0000563547798af4 llvm::sys::RunSignalHandlers() /home/simon/LLVM/llvm-project/llvm/lib/Support/Signals.cpp:76:20
 #2 0x00005635477993a5 SignalHandler(int) /home/simon/LLVM/llvm-project/llvm/lib/Support/Unix/Signals.inc:397:31
 #3 0x00007fb184d493c0 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x153c0)
 #4 0x00007fb18481918b raise (/lib/x86_64-linux-gnu/libc.so.6+0x4618b)
 #5 0x00007fb1847f8859 abort (/lib/x86_64-linux-gnu/libc.so.6+0x25859)
 #6 0x00007fb1847f8729 (/lib/x86_64-linux-gnu/libc.so.6+0x25729)
 #7 0x00007fb184809f36 (/lib/x86_64-linux-gnu/libc.so.6+0x36f36)
 #8 0x0000563546ebdfd9 llvm::ConstantExpr::get(unsigned int, llvm::Constant*, llvm::Constant*, unsigned int, llvm::Type*) /home/simon/LLVM/llvm-project/llvm/lib/IR/Constants.cpp:2275:3
 #9 0x000056354670537d llvm::TargetFolder::Fold(llvm::Constant*) const /home/simon/LLVM/llvm-project/llvm/include/llvm/Analysis/TargetFolder.h:37:32
#10 0x000056354670537d llvm::TargetFolder::CreateSub(llvm::Constant*, llvm::Constant*, bool, bool) const /home/simon/LLVM/llvm-project/llvm/include/llvm/Analysis/TargetFolder.h:58:16
#11 0x0000563546795668 llvm::IRBuilderBase::CreateSub(llvm::Value*, llvm::Value*, llvm::Twine const&, bool, bool) /home/simon/LLVM/llvm-project/llvm/include/llvm/IR/IRBuilder.h:1211:22
#12 0x0000563546795668 llvm::lowerObjectSizeCall(llvm::IntrinsicInst*, llvm::DataLayout const&, llvm::TargetLibraryInfo const*, bool) /home/simon/LLVM/llvm-project/llvm/lib/Analysis/MemoryBuiltins.cpp:567:28
#13 0x00005635471a8b4a lowerConstantIntrinsics(llvm::Function&, llvm::TargetLibraryInfo const*, llvm::DominatorTree*) /home/simon/LLVM/llvm-project/llvm/lib/Transforms/Scalar/LowerConstantIntrinsics.cpp:137:37
#14 0x00005635471a9da4 (anonymous namespace)::LowerConstantIntrinsics::runOnFunction(llvm::Function&) /home/simon/LLVM/llvm-project/llvm/lib/Transforms/Scalar/LowerConstantIntrinsics.cpp:182:3
#15 0x0000563546fa89c8 llvm::FPPassManager::runOnFunction(llvm::Function&) /home/simon/LLVM/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:1449:7
#16 0x0000563546fa9499 llvm::ilist_node_impl<llvm::ilist_detail::node_options<llvm::Function, true, false, void> >::getNext() /home/simon/LLVM/llvm-project/llvm/include/llvm/ADT/ilist_node.h:66:66
#17 0x0000563546fa9499 llvm::ilist_iterator<llvm::ilist_detail::node_options<llvm::Function, true, false, void>, false, false>::operator++() /home/simon/LLVM/llvm-project/llvm/include/llvm/ADT/ilist_iterator.h:157:25
#18 0x0000563546fa9499 llvm::FPPassManager::runOnModule(llvm::Module&) /home/simon/LLVM/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:1484:22
#19 0x0000563546fa7b18 runOnModule /home/simon/LLVM/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:1561:7
#20 0x0000563546fa7b18 llvm::legacy::PassManagerImpl::run(llvm::Module&) /home/simon/LLVM/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:542:55
#21 0x000056354532e4f2 compileModule(char**, llvm::LLVMContext&) /home/simon/LLVM/llvm-project/llvm/tools/llc/llc.cpp:690:66
#22 0x0000563545269352 main /home/simon/LLVM/llvm-project/llvm/tools/llc/llc.cpp:388:5
#23 0x00007fb1847fa0b3 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x270b3)
#24 0x000056354532696e _start (/home/simon/LLVM/stage1/bin/llc+0x9a596e)