; RUN: opt < %s -passes=instcombine -S | not grep 1431655764

target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32"

define ptr @foo(ptr %x) {
entry:
        %q = getelementptr i8, ptr %x, i32 -4
        ret ptr %q
}