Compiler crash when a procedure has #optional_ok and no declared result

[VoidStarCaster]

Context

• Operating System & Odin Version:
  Odin: dev-2025-05:30c6fea9e
  OS: Windows 10 Professional (version: 22H2), build 19045.5737
  CPU: AMD Ryzen 7 7700 8-Core Processor
  RAM: 31849 MiB
  Backend: LLVM 20.1.0

Expected Behavior

The compiler should display "Error: A procedure type with the #optional_ok tag requires 2 return values, got 0"

Current Behavior

The compiler crashes in check_expr.cpp:8148, in check_call_expr()

Failure Information (for bugs)

Steps to Reproduce

package main

my_func :: proc() #optional_ok
{

}

main :: proc()
{
	my_func()
}

But calling my_func(0) will prevent the crash from happening

[Kelimion]

I've confirmed the crash.

When you say my_func(0) prevents the crash from happening, would that be because the compiler tells you the following, which is what you'd expect without the (0)?

W:/Scratch/scratch.odin(3:12) Error: A procedure type with the #optional_ok tag requires 2 return values, got 0 
	my_func :: proc() #optional_ok { 
	           ^~~~~^ 
W:/Scratch/scratch.odin(8:2) Error: Too many arguments for 'my_func', expected 0 arguments, got 1 
	my_func(0) 
	^~~~~~~~~^ 

[Kelimion]

Fixed.

[VoidStarCaster]

When you say my_func(0) prevents the crash from happening, would that be because the compiler tells you the following, which is what you'd expect without the (0)?

Yes exactly, sorry if it was confusing, it just seems weird that it completely prevented the crash.

Fixed.

That was fast, thanks !