Program fails assert_every_pointer_constant_points_to_something

[langston-barrett]

 </mate/copy.ll>:45:getelementptr inbounds ([0 x i8], [0 x i8]* @uc, i32 0, i32 0)

; ModuleID = '/tmp/reduce-py-cache/incompatible-sign.-O0.bc'
source_filename = "/mate/llvm-project/clang/test/Sema/incompatible-sign.c"
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-pc-linux-gnu"

@uc = external global [0 x i8], align 1
@constinit = private global [1 x i8*] [i8* getelementptr inbounds ([0 x i8], [0 x i8]* @uc, i32 0, i32 0)], align 8

!llvm.module.flags = !{!0}
!llvm.ident = !{!1}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{!"clang version 10.0.0-4ubuntu1 "}