xref: /llvm-project/llvm/test/Transforms/AggressiveInstCombine/logic-combine.ll (revision 76df706bca14affdcf0dd91561c8e6805035608f)

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=aggressive-instcombine -S | FileCheck %s

define i8 @leaf1_and_aa(i8 %a)  {
; CHECK-LABEL: @leaf1_and_aa(
; CHECK-NEXT:    [[AND_AA:%.*]] = and i8 [[A:%.*]], [[A]]
; CHECK-NEXT:    ret i8 [[AND_AA]]
;
  %and.aa = and i8 %a, %a
  ret i8 %and.aa
}

define i8 @leaf1_and_a_false(i8 %a)  {
; CHECK-LABEL: @leaf1_and_a_false(
; CHECK-NEXT:    [[AND_AA:%.*]] = and i8 [[A:%.*]], 0
; CHECK-NEXT:    ret i8 [[AND_AA]]
;
  %and.aa = and i8 %a, 0
  ret i8 %and.aa
}

define i8 @leaf1_xor_aa(i8 %a)  {
; CHECK-LABEL: @leaf1_xor_aa(
; CHECK-NEXT:    [[XOR_AA:%.*]] = xor i8 [[A:%.*]], [[A]]
; CHECK-NEXT:    ret i8 [[XOR_AA]]
;
  %xor.aa = xor i8 %a, %a
  ret i8 %xor.aa
}

define i8 @leaf1_and_not(i8 %a)  {
; CHECK-LABEL: @leaf1_and_not(
; CHECK-NEXT:    [[NOT_A:%.*]] = xor i8 [[A:%.*]], -1
; CHECK-NEXT:    [[AND:%.*]] = and i8 [[A]], [[NOT_A]]
; CHECK-NEXT:    ret i8 [[AND]]
;
  %not.a = xor i8 %a, -1
  %and = and i8 %a, %not.a
  ret i8 %and
}

define i8 @leaf1_or_not(i8 %a)  {
; CHECK-LABEL: @leaf1_or_not(
; CHECK-NEXT:    [[NOT_A:%.*]] = xor i8 [[A:%.*]], -1
; CHECK-NEXT:    [[OR:%.*]] = or i8 [[A]], [[NOT_A]]
; CHECK-NEXT:    ret i8 [[OR]]
;
  %not.a = xor i8 %a, -1
  %or = or i8 %a, %not.a
  ret i8 %or
}

define i8 @leaf2_xor(i8 %a, i8 %b)  {
; CHECK-LABEL: @leaf2_xor(
; CHECK-NEXT:    [[AB:%.*]] = xor i8 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT:    [[XOR_AB_A:%.*]] = xor i8 [[AB]], [[A]]
; CHECK-NEXT:    ret i8 [[XOR_AB_A]]
;
  %ab = xor i8 %a, %b
  %xor.ab.a = xor i8 %ab, %a
  ret i8 %xor.ab.a
}

define i8 @leaf2_xor_ret_const_false(i8 %a, i8 %b)  {
; CHECK-LABEL: @leaf2_xor_ret_const_false(
; CHECK-NEXT:    [[XOR_AB:%.*]] = xor i8 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT:    [[XOR_AB_A:%.*]] = xor i8 [[XOR_AB]], [[A]]
; CHECK-NEXT:    [[XOR_AB_A_B:%.*]] = xor i8 [[XOR_AB_A]], [[B]]
; CHECK-NEXT:    ret i8 [[XOR_AB_A_B]]
;
  %xor.ab = xor i8 %a, %b
  %xor.ab.a = xor i8 %xor.ab, %a
  %xor.ab.a.b = xor i8 %xor.ab.a, %b
  ret i8 %xor.ab.a.b
}

define i8 @leaf2_or_ret_leaf(i8 %a, i8 %b)  {
; CHECK-LABEL: @leaf2_or_ret_leaf(
; CHECK-NEXT:    [[OR_AB:%.*]] = or i8 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT:    [[AND_AB:%.*]] = and i8 [[A]], [[B]]
; CHECK-NEXT:    [[XOR1:%.*]] = xor i8 [[OR_AB]], [[AND_AB]]
; CHECK-NEXT:    [[XOR2:%.*]] = xor i8 [[XOR1]], [[A]]
; CHECK-NEXT:    ret i8 [[XOR2]]
;
  %or.ab = or i8 %a, %b
  %and.ab = and i8 %a, %b
  %xor1 = xor i8 %or.ab, %and.ab
  %xor2 = xor i8 %xor1, %a
  ret i8 %xor2
}

define i8 @leaf2_or_ret_const_false(i8 %a, i8 %b)  {
; CHECK-LABEL: @leaf2_or_ret_const_false(
; CHECK-NEXT:    [[OR_AB:%.*]] = or i8 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT:    [[AND_AB:%.*]] = and i8 [[A]], [[B]]
; CHECK-NEXT:    [[XOR1:%.*]] = xor i8 [[OR_AB]], [[AND_AB]]
; CHECK-NEXT:    [[XOR2:%.*]] = xor i8 [[XOR1]], [[A]]
; CHECK-NEXT:    [[XOR3:%.*]] = xor i8 [[XOR1]], [[B]]
; CHECK-NEXT:    ret i8 [[XOR3]]
;
  %or.ab = or i8 %a, %b
  %and.ab = and i8 %a, %b
  %xor1 = xor i8 %or.ab, %and.ab
  %xor2 = xor i8 %xor1, %a
  %xor3 = xor i8 %xor1, %b
  ret i8 %xor3
}

define i1 @leaf2_type_is_i1(i1 %a, i1 %b) {
; CHECK-LABEL: @leaf2_type_is_i1(
; CHECK-NEXT:    [[XOR_AB:%.*]] = xor i1 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT:    [[NOT_A:%.*]] = xor i1 [[A]], true
; CHECK-NEXT:    [[XOR2:%.*]] = xor i1 [[NOT_A]], [[B]]
; CHECK-NEXT:    [[OR:%.*]] = or i1 [[XOR2]], [[XOR_AB]]
; CHECK-NEXT:    ret i1 [[OR]]
;
  %xor.ab = xor i1 %a, %b
  %not.a = xor i1 %a, true
  %xor2 = xor i1 %not.a, %b
  %or = or i1 %xor2, %xor.ab
  ret i1 %or
}

define i8 @leaf3_complex_ret_const_false(i8 %a, i8 %b, i8 %c)  {
; CHECK-LABEL: @leaf3_complex_ret_const_false(
; CHECK-NEXT:    [[AB:%.*]] = or i8 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT:    [[ABC:%.*]] = or i8 [[AB]], [[C:%.*]]
; CHECK-NEXT:    [[NOT_ABC:%.*]] = xor i8 [[ABC]], -1
; CHECK-NEXT:    [[R:%.*]] = and i8 [[NOT_ABC]], [[A]]
; CHECK-NEXT:    ret i8 [[R]]
;
  %ab = or i8 %a, %b
  %abc = or i8 %ab, %c
  %not.abc = xor i8 %abc, -1
  %r = and i8 %not.abc, %a
  ret i8 %r
}

define i8 @leaf3_complex_ret_leaf(i8 %a, i8 %b, i8 %c) {
; CHECK-LABEL: @leaf3_complex_ret_leaf(
; CHECK-NEXT:    [[AB:%.*]] = and i8 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT:    [[BC:%.*]] = and i8 [[B]], [[C:%.*]]
; CHECK-NEXT:    [[XOR_AC:%.*]] = xor i8 [[A]], [[C]]
; CHECK-NEXT:    [[OR:%.*]] = or i8 [[AB]], [[XOR_AC]]
; CHECK-NEXT:    [[NOT_BC:%.*]] = xor i8 [[BC]], -1
; CHECK-NEXT:    [[AND:%.*]] = and i8 [[NOT_BC]], [[A]]
; CHECK-NEXT:    [[COND:%.*]] = xor i8 [[AND]], [[OR]]
; CHECK-NEXT:    ret i8 [[COND]]
;
  %ab = and i8 %a, %b
  %bc = and i8 %b, %c
  %xor.ac = xor i8 %a, %c
  %or = or i8 %ab, %xor.ac
  %not.bc = xor i8 %bc, -1
  %and = and i8 %not.bc, %a
  %cond = xor i8 %and, %or
  ret i8 %cond
}

define i8 @leaf4_ret_const_true(i8 %a, i8 %b, i8 %c, i8 %d)  {
; CHECK-LABEL: @leaf4_ret_const_true(
; CHECK-NEXT:    [[BD:%.*]] = and i8 [[B:%.*]], [[D:%.*]]
; CHECK-NEXT:    [[NOT_BD:%.*]] = xor i8 [[BD]], -1
; CHECK-NEXT:    [[XOR_AB:%.*]] = xor i8 [[A:%.*]], [[B]]
; CHECK-NEXT:    [[OR1:%.*]] = or i8 [[XOR_AB]], [[C:%.*]]
; CHECK-NEXT:    [[OR2:%.*]] = or i8 [[OR1]], [[NOT_BD]]
; CHECK-NEXT:    [[OR3:%.*]] = or i8 [[OR2]], [[A]]
; CHECK-NEXT:    ret i8 [[OR3]]
;
  %bd = and i8 %b, %d
  %not.bd = xor i8 %bd, -1
  %xor.ab = xor i8 %a, %b
  %or1 = or i8 %xor.ab, %c
  %or2 = or i8 %or1, %not.bd
  %or3 = or i8 %or2, %a
  ret i8 %or3
}

define i8 @leaf4_ret_leaf(i8 %a, i8 %b, i8 %c, i8 %d)  {
; CHECK-LABEL: @leaf4_ret_leaf(
; CHECK-NEXT:    [[BD:%.*]] = and i8 [[B:%.*]], [[D:%.*]]
; CHECK-NEXT:    [[XOR:%.*]] = xor i8 [[BD]], [[C:%.*]]
; CHECK-NEXT:    [[NOT_BD:%.*]] = xor i8 [[XOR]], -1
; CHECK-NEXT:    [[XOR_AB:%.*]] = xor i8 [[A:%.*]], [[B]]
; CHECK-NEXT:    [[OR1:%.*]] = or i8 [[XOR_AB]], [[C]]
; CHECK-NEXT:    [[OR2:%.*]] = or i8 [[OR1]], [[NOT_BD]]
; CHECK-NEXT:    [[OR3:%.*]] = or i8 [[OR2]], [[A]]
; CHECK-NEXT:    [[AND:%.*]] = and i8 [[OR3]], [[B]]
; CHECK-NEXT:    ret i8 [[AND]]
;
  %bd = and i8 %b, %d
  %xor = xor i8 %bd, %c
  %not.bd = xor i8 %xor, -1
  %xor.ab = xor i8 %a, %b
  %or1 = or i8 %xor.ab, %c
  %or2 = or i8 %or1, %not.bd
  %or3 = or i8 %or2, %a
  %and = and i8 %or3, %b
  ret i8 %and
}

define i8 @leaf4_ret_leaf2(i8 %a, i8 %b, i8 %c, i8 %d)  {
; CHECK-LABEL: @leaf4_ret_leaf2(
; CHECK-NEXT:    [[BD:%.*]] = and i8 [[B:%.*]], [[D:%.*]]
; CHECK-NEXT:    [[XOR:%.*]] = xor i8 [[BD]], [[C:%.*]]
; CHECK-NEXT:    [[NOT_BD:%.*]] = xor i8 [[XOR]], -1
; CHECK-NEXT:    [[XOR_AB:%.*]] = xor i8 [[A:%.*]], [[B]]
; CHECK-NEXT:    [[OR1:%.*]] = or i8 [[XOR_AB]], [[C]]
; CHECK-NEXT:    [[OR2:%.*]] = or i8 [[OR1]], [[NOT_BD]]
; CHECK-NEXT:    [[OR3:%.*]] = or i8 [[OR2]], [[A]]
; CHECK-NEXT:    [[AND:%.*]] = and i8 [[OR3]], [[B]]
; CHECK-NEXT:    ret i8 [[AND]]
;
  %bd = and i8 %b, %d
  %xor = xor i8 %bd, %c
  %not.bd = xor i8 %xor, -1
  %xor.ab = xor i8 %a, %b
  %or1 = or i8 %xor.ab, %c
  %or2 = or i8 %or1, %not.bd
  %or3 = or i8 %or2, %a
  %and = and i8 %or3, %b
  ret i8 %and
}