Assertion fail at `llvm_backend_const.cpp(517)` when narrowcasting integer

[Xotchkass]

Context

$ odin report
Odin:    dev-2025-11-nightly:c4262cc
OS:      Windows 10 Professional (version: 22H2), build 19045.5965
CPU:     Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz
RAM:     16246 MiB
Backend: LLVM 20.1.0

Expected Behavior

Cast integer.

Current Behavior

Compiler crashes.

Failure Information (for bugs)

Steps to Reproduce

package main

import "core:fmt"

main :: proc() {
	src: u64 : 0x1122334455667788
	dst := u32(src)

	fmt.printfln("dst: %#X", dst)
}

Failure Logs

[DEBUG] 1234605616436508552
u32 -> 4
D:\a\Odin\Odin\src\llvm_backend_const.cpp(517): Assertion Failure: `sz >= max_count` max_count: 8, sz: 4, written: 0, type u32