1; This bug has to do with the fact that constant propagation was implemented in
2; terms of _logical_ not (! in C) instead of _bitwise_ not (~ in C).  This was
3; due to a spec change.
4
5; Fix #2: The unary not instruction now no longer exists. Change to xor.
6
7; RUN: opt < %s -instsimplify -S | \
8; RUN:   not grep "i32 0"
9
10define i32 @test1() {
11        %R = xor i32 123, -1            ; <i32> [#uses=1]
12        ret i32 %R
13}
14
15define i32 @test2() {
16        %R = xor i32 -123, -1           ; <i32> [#uses=1]
17        ret i32 %R
18}
19
20