Compiler segfaults when nil checking [N]rawptr

[pietrovismara]

Context

Odin: dev-2024-12:7be003557
OS: Windows 11 Professional (version: 23H2), build 22631.4890
CPU: 12th Gen Intel(R) Core(TM) i7-12700K
RAM: 32509 MiB
Backend: LLVM 18.1.8

Expected Behavior

I'd expect the compiler to fail with Cannot convert untyped value 'nil' to '[4]rawptr' from 'untyped nil'

Failure Information (for bugs)

This bug has also been confirmed to happen on dev-2025-02.

Steps to Reproduce

package main

import "core:fmt"

data := [4]rawptr{}

main :: proc() {
    fmt.printfln("main")
    if data != nil {
        fmt.printfln("%v", data)
    }
}

[FourteenBrush]

On dev-2025-02
This occurs on any array of types which nil can be assigned to (pointers, cstring, enums, bitsets, typeids and fn pointers)

Sys details:

        Odin:    dev-2025-02
        OS:      NixOS 25.05 (Warbler), Linux 6.6.71
        CPU:     AMD Ryzen 7 5800H with Radeon Graphics         
        RAM:     15847 MiB
        Backend: LLVM 18.1.8

gdb output of odin build main.odin -file:

Thread 1 ".odin-wrapped" received signal SIGSEGV, Segmentation fault.
0x00007fffefd8ece2 in LLVMIsConstant () from /nix/store/gkb76wz2dmx7x8d8xlf78gg1bxnf6l6m-llvm-18.1.8-lib/lib/libLLVM.so.18.1
(gdb)