; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -passes="print<demanded-bits>,reassociate,bdce" -S < %s | FileCheck %s

; We want to verify that demanded-bits analysis is invalidated when
; reassociate is canonicalizing expressions (e.g. putting the constant on the
; RHS of an OR).
;
; Printing demanded-bits will make sure a demanded-bits analysis is cached.
; Then we run reassociate, followed by bdce. When not invalidating demanded-bits
; while doing reassociation of the OR, we got this kind of error:
;
;   Running pass: BDCEPass on foo (4 instructions)
;   While deleting: i1 %cmp1
;   Use still stuck around after Def is destroyed:  %or = or i1 %cmp1, true
;   UNREACHABLE executed at ../lib/IR/Value.cpp:102!
;
; Check that we get the expected result without failing on assert/unreachable.

define i1 @foo(i1 %c) {
; CHECK-LABEL: define i1 @foo(
; CHECK-SAME: i1 [[C:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*:]]
; CHECK-NEXT:    [[OR:%.*]] = or i1 false, true
; CHECK-NEXT:    [[AND:%.*]] = and i1 [[OR]], [[C]]
; CHECK-NEXT:    ret i1 [[AND]]
;
entry:
  %cmp = icmp ne i16 0, 1
  %or = or i1 true, %cmp
  %and = and i1 %c, %or
  ret i1 %and
}