Circle crashes while compiling a shared library

[SL-code]

Hello, I'm trying to compile the 4coder editor with circle and I get a crash while compiling a shared library. The 4coder that I'm working on can be found here on the Monorepo branch.

To reproduce the crash:
Run from the root directory of the project the following command

circle -Icode -Icode/custom ./code/4ed_app_target.cpp --shared --fPIC  -o 4ed_library.so

by running this command in gdb I can extract the following backtrace

#0  0x000000000176af3b in llvm::removeUnreachableBlocks(llvm::Function&, llvm::DomTreeUpdater*, llvm::MemorySSAUpdater*) ()
#1  0x0000000001375f80 in simplifyFunctionCFG(llvm::Function&, llvm::TargetTransformInfo const&, llvm::DominatorTree*, llvm::SimplifyCFGOptions const&) ()
#2  0x0000000001375d41 in llvm::SimplifyCFGPass::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) ()
#3  0x000000000075ca45 in cg::cg_func_builder_t::define() ()
#4  0x000000000071a3db in cg::module_t::emit(cg::func_t&, bool, sema::odr_usage_t) ()
#5  0x000000000071a6bf in cg::module_t::emit(func_key_t, bool, sema::odr_usage_t) ()
#6  0x000000000071df9a in cg::codegen_t::emit(func_key_t, bool, sema::odr_usage_t) ()
#7  0x000000000071e4ec in cg::codegen_t::inject(sema::stmt_declaration_t*, sema::context_t&) ()
#8  0x000000000071dd0f in cg::codegen_t::inject_ast(sema::stmt_ns_t*, sema::context_t&) ()
#9  0x0000000000447655 in main ()

Here is a dump of all registers at the time of the crash

rax            0x0                 0
rbx            0x0                 0
rcx            0x7fffffffc3b8      140737488339896
rdx            0x2                 2
rsi            0x80                128
rdi            0x9042868           151267432
rbp            0x1                 0x1
rsp            0x7fffffffc170      0x7fffffffc170
r8             0x2                 2
r9             0xffffffffffffffff  -1
r10            0x0                 0
r11            0x7ffff7a3eac0      140737348102848
r12            0x1                 1
r13            0x0                 0
r14            0x9042868           151267432
r15            0x9042840           151267392
rip            0x176af3b           0x176af3b <llvm::removeUnreachableBlocks(llvm::Function&, llvm::DomTreeUpdater*, llvm::MemorySSAUpdater*)+1003>
eflags         0x10246             [ PF ZF IF RF ]
cs             0x33                51
ss             0x2b                43
ds             0x0                 0
es             0x0                 0
fs             0x0                 0
gs             0x0                 0

I've seen that others have reported crashes and they actually know the cause, sadly I do not have possible causes for this crash other then "it's a segmentation fault".