1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt < %s -instsimplify -S | FileCheck %s
3
4; %result = x & (1 ^ sel) = (x & 1) ^ (x & sel)
5;         = x ^ (select cond, false, false)
6;         = x ^ false = x
7;
8define i1 @f(i1 %cond, i1 noundef %x, i1 %y, i1 %z) {
9; CHECK-LABEL: @f(
10; CHECK-NEXT:    ret i1 [[X:%.*]]
11;
12  %notx = xor i1 %x, 1
13  %lhs = and i1 %notx, %y
14  %rhs = and i1 %notx, %z
15  %sel = select i1 %cond, i1 %lhs, i1 %rhs
16  %op1 = xor i1 1, %sel
17  %result = and i1 %x, %op1
18  ret i1 %result
19}
20
21define i1 @f_dontfold(i1 %cond, i1 %x, i1 %y, i1 %z) {
22; CHECK-LABEL: @f_dontfold(
23; CHECK-NEXT:    ret i1 [[X:%.*]]
24;
25  %notx = xor i1 %x, 1
26  %lhs = and i1 %notx, %y
27  %rhs = and i1 %notx, %z
28  %sel = select i1 %cond, i1 %lhs, i1 %rhs
29  %op1 = xor i1 1, %sel
30  %result = and i1 %x, %op1
31  ret i1 %result
32}
33