745 changes: 745 additions & 0 deletions llvm/test/Transforms/InstCombine/and-xor-or.ll
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Original file line number Diff line number Diff line change
Expand Up @@ -1065,6 +1065,418 @@ define i32 @or_not_and_wrong_b(i32 %a, i32 %b, i32 %c, i32 %d) {
ret i32 %or3
}

; (c | ~(a & b)) & (b | ~(a & c)) --> ~(a & (b ^ c))

define i32 @and_not_or(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @and_not_or(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[NOT1]], [[C:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[AND3:%.*]] = and i32 [[OR1]], [[OR2]]
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %a, %b
%not1 = xor i32 %and1, -1
%or1 = or i32 %not1, %c
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or2 = or i32 %not2, %b
%and3 = and i32 %or1, %or2
ret i32 %and3
}

define i32 @and_not_or_commute1(i32 %a, i32 %b0, i32 %c) {
; CHECK-LABEL: @and_not_or_commute1(
; CHECK-NEXT: [[B:%.*]] = sdiv i32 42, [[B0:%.*]]
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[B]], [[A:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[NOT1]], [[C:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[B]], [[NOT2]]
; CHECK-NEXT: [[AND3:%.*]] = and i32 [[OR1]], [[OR2]]
; CHECK-NEXT: ret i32 [[AND3]]
;
%b = sdiv i32 42, %b0 ; thwart complexity-based canonicalization
%and1 = and i32 %a, %b
%not1 = xor i32 %and1, -1
%or1 = or i32 %not1, %c
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or2 = or i32 %b, %not2
%and3 = and i32 %or1, %or2
ret i32 %and3
}

define i32 @and_not_or_commute2(i32 %a, i32 %b0, i32 %c) {
; CHECK-LABEL: @and_not_or_commute2(
; CHECK-NEXT: [[B:%.*]] = sdiv i32 42, [[B0:%.*]]
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[B]], [[A:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[NOT1]], [[C:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[B]], [[NOT2]]
; CHECK-NEXT: [[AND3:%.*]] = and i32 [[OR2]], [[OR1]]
; CHECK-NEXT: ret i32 [[AND3]]
;
%b = sdiv i32 42, %b0 ; thwart complexity-based canonicalization
%and1 = and i32 %a, %b
%not1 = xor i32 %and1, -1
%or1 = or i32 %not1, %c
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or2 = or i32 %b, %not2
%and3 = and i32 %or2, %or1
ret i32 %and3
}

define i32 @and_not_or_commute3(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @and_not_or_commute3(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[NOT1]], [[C:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[C]], [[A]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[AND3:%.*]] = and i32 [[OR1]], [[OR2]]
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %b, %a
%not1 = xor i32 %and1, -1
%or1 = or i32 %not1, %c
%and2 = and i32 %c, %a
%not2 = xor i32 %and2, -1
%or2 = or i32 %not2, %b
%and3 = and i32 %or1, %or2
ret i32 %and3
}

define i32 @and_not_or_commute4(i32 %a, i32 %b, i32 %c0) {
; CHECK-LABEL: @and_not_or_commute4(
; CHECK-NEXT: [[C:%.*]] = sdiv i32 42, [[C0:%.*]]
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[C]], [[NOT1]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[C]], [[A]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[AND3:%.*]] = and i32 [[OR1]], [[OR2]]
; CHECK-NEXT: ret i32 [[AND3]]
;
%c = sdiv i32 42, %c0 ; thwart complexity-based canonicalization
%and1 = and i32 %a, %b
%not1 = xor i32 %and1, -1
%or1 = or i32 %c, %not1
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or2 = or i32 %not2, %b
%and3 = and i32 %or1, %or2
ret i32 %and3
}

define i32 @and_not_or_commute5(i32 %a0, i32 %b, i32 %c0) {
; CHECK-LABEL: @and_not_or_commute5(
; CHECK-NEXT: [[A:%.*]] = sdiv i32 42, [[A0:%.*]]
; CHECK-NEXT: [[C:%.*]] = sdiv i32 42, [[C0:%.*]]
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[A]], [[B:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[C]], [[NOT1]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[AND3:%.*]] = and i32 [[OR1]], [[OR2]]
; CHECK-NEXT: ret i32 [[AND3]]
;
%a = sdiv i32 42, %a0 ; thwart complexity-based canonicalization
%c = sdiv i32 42, %c0 ; thwart complexity-based canonicalization
%and1 = and i32 %a, %b
%not1 = xor i32 %and1, -1
%or1 = or i32 %c, %not1
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or2 = or i32 %not2, %b
%and3 = and i32 %or1, %or2
ret i32 %and3
}

define i32 @and_not_or_commute6(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @and_not_or_commute6(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[NOT1]], [[C:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[C]], [[A]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[AND3:%.*]] = and i32 [[OR1]], [[OR2]]
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %a, %b
%not1 = xor i32 %and1, -1
%or1 = or i32 %not1, %c
%and2 = and i32 %c, %a
%not2 = xor i32 %and2, -1
%or2 = or i32 %not2, %b
%and3 = and i32 %or1, %or2
ret i32 %and3
}

define i32 @and_not_or_commute7(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @and_not_or_commute7(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[NOT1]], [[C:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[AND3:%.*]] = and i32 [[OR1]], [[OR2]]
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %b, %a
%not1 = xor i32 %and1, -1
%or1 = or i32 %not1, %c
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or2 = or i32 %not2, %b
%and3 = and i32 %or1, %or2
ret i32 %and3
}

define i32 @and_not_or_commute8(i32 %a0, i32 %b0, i32 %c) {
; CHECK-LABEL: @and_not_or_commute8(
; CHECK-NEXT: [[A:%.*]] = sdiv i32 42, [[A0:%.*]]
; CHECK-NEXT: [[B:%.*]] = sdiv i32 42, [[B0:%.*]]
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[A]], [[B]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[NOT1]], [[C:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[B]], [[NOT2]]
; CHECK-NEXT: [[AND3:%.*]] = and i32 [[OR1]], [[OR2]]
; CHECK-NEXT: ret i32 [[AND3]]
;
%a = sdiv i32 42, %a0 ; thwart complexity-based canonicalization
%b = sdiv i32 42, %b0 ; thwart complexity-based canonicalization
%and1 = and i32 %a, %b
%not1 = xor i32 %and1, -1
%or1 = or i32 %not1, %c
%and2 = and i32 %c, %a
%not2 = xor i32 %and2, -1
%or2 = or i32 %b, %not2
%and3 = and i32 %or1, %or2
ret i32 %and3
}

define i32 @and_not_or_commute9(i32 %a0, i32 %b0, i32 %c0) {
; CHECK-LABEL: @and_not_or_commute9(
; CHECK-NEXT: [[A:%.*]] = sdiv i32 42, [[A0:%.*]]
; CHECK-NEXT: [[B:%.*]] = sdiv i32 42, [[B0:%.*]]
; CHECK-NEXT: [[C:%.*]] = sdiv i32 42, [[C0:%.*]]
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[A]], [[B]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[C]], [[NOT1]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[B]], [[NOT2]]
; CHECK-NEXT: [[AND3:%.*]] = and i32 [[OR1]], [[OR2]]
; CHECK-NEXT: ret i32 [[AND3]]
;
%a = sdiv i32 42, %a0 ; thwart complexity-based canonicalization
%b = sdiv i32 42, %b0 ; thwart complexity-based canonicalization
%c = sdiv i32 42, %c0 ; thwart complexity-based canonicalization
%and1 = and i32 %a, %b
%not1 = xor i32 %and1, -1
%or1 = or i32 %not1, %c
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or2 = or i32 %b, %not2
%and3 = and i32 %or1, %or2
ret i32 %and3
}

define i32 @and_not_or_extra_not_use1(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @and_not_or_extra_not_use1(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[NOT1]], [[C:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[AND3:%.*]] = and i32 [[OR1]], [[OR2]]
; CHECK-NEXT: call void @use(i32 [[NOT1]])
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %a, %b
%not1 = xor i32 %and1, -1
%or1 = or i32 %not1, %c
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or2 = or i32 %not2, %b
%and3 = and i32 %or1, %or2
call void @use(i32 %not1)
ret i32 %and3
}

define i32 @and_not_or_extra_not_use2(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @and_not_or_extra_not_use2(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[NOT1]], [[C:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[AND3:%.*]] = and i32 [[OR1]], [[OR2]]
; CHECK-NEXT: call void @use(i32 [[NOT2]])
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %a, %b
%not1 = xor i32 %and1, -1
%or1 = or i32 %not1, %c
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or2 = or i32 %not2, %b
%and3 = and i32 %or1, %or2
call void @use(i32 %not2)
ret i32 %and3
}

define i32 @and_not_or_extra_and_use1(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @and_not_or_extra_and_use1(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[NOT1]], [[C:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[AND3:%.*]] = and i32 [[OR1]], [[OR2]]
; CHECK-NEXT: call void @use(i32 [[OR1]])
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %a, %b
%not1 = xor i32 %and1, -1
%or1 = or i32 %not1, %c
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or2 = or i32 %not2, %b
%and3 = and i32 %or1, %or2
call void @use(i32 %or1)
ret i32 %and3
}

define i32 @and_not_or_extra_and_use2(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @and_not_or_extra_and_use2(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[NOT1]], [[C:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[AND3:%.*]] = and i32 [[OR1]], [[OR2]]
; CHECK-NEXT: call void @use(i32 [[OR2]])
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %a, %b
%not1 = xor i32 %and1, -1
%or1 = or i32 %not1, %c
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or2 = or i32 %not2, %b
%and3 = and i32 %or1, %or2
call void @use(i32 %or2)
ret i32 %and3
}

define i32 @and_not_or_extra_or_use1(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @and_not_or_extra_or_use1(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[NOT1]], [[C:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[AND3:%.*]] = and i32 [[OR1]], [[OR2]]
; CHECK-NEXT: call void @use(i32 [[AND1]])
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %a, %b
%not1 = xor i32 %and1, -1
%or1 = or i32 %not1, %c
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or2 = or i32 %not2, %b
%and3 = and i32 %or1, %or2
call void @use(i32 %and1)
ret i32 %and3
}

define i32 @and_not_or_extra_or_use2(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @and_not_or_extra_or_use2(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[NOT1]], [[C:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[AND3:%.*]] = and i32 [[OR1]], [[OR2]]
; CHECK-NEXT: call void @use(i32 [[AND2]])
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %a, %b
%not1 = xor i32 %and1, -1
%or1 = or i32 %not1, %c
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or2 = or i32 %not2, %b
%and3 = and i32 %or1, %or2
call void @use(i32 %and2)
ret i32 %and3
}

define i32 @and_not_or_wrong_c(i32 %a, i32 %b, i32 %c, i32 %d) {
; CHECK-LABEL: @and_not_or_wrong_c(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[NOT1]], [[C:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[D:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[AND3:%.*]] = and i32 [[OR1]], [[OR2]]
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %a, %b
%not1 = xor i32 %and1, -1
%or1 = or i32 %not1, %c
%and2 = and i32 %a, %d
%not2 = xor i32 %and2, -1
%or2 = or i32 %not2, %b
%and3 = and i32 %or1, %or2
ret i32 %and3
}

define i32 @and_not_or_wrong_b(i32 %a, i32 %b, i32 %c, i32 %d) {
; CHECK-LABEL: @and_not_or_wrong_b(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[NOT1]], [[C:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[NOT2]], [[D:%.*]]
; CHECK-NEXT: [[AND3:%.*]] = and i32 [[OR1]], [[OR2]]
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %a, %b
%not1 = xor i32 %and1, -1
%or1 = or i32 %not1, %c
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or2 = or i32 %not2, %d
%and3 = and i32 %or1, %or2
ret i32 %and3
}

; (b & ~(a | c)) | ~(a | b) --> ~((b & c) | a)

define i32 @or_and_not_not(i32 %a, i32 %b, i32 %c) {
Expand Down Expand Up @@ -1299,6 +1711,29 @@ define i32 @or_and_not_not_extra_or_use2(i32 %a, i32 %b, i32 %c) {
ret i32 %or3
}

define i32 @or_and_not_not_2_extra_uses(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @or_and_not_not_2_extra_uses(
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: call void @use(i32 [[OR1]])
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[OR1]], -1
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[A]], [[C:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[OR2]], -1
; CHECK-NEXT: [[AND:%.*]] = and i32 [[NOT2]], [[B]]
; CHECK-NEXT: call void @use(i32 [[AND]])
; CHECK-NEXT: [[OR3:%.*]] = or i32 [[AND]], [[NOT1]]
; CHECK-NEXT: ret i32 [[OR3]]
;
%or1 = or i32 %b, %a
call void @use(i32 %or1)
%not1 = xor i32 %or1, -1
%or2 = or i32 %a, %c
%not2 = xor i32 %or2, -1
%and = and i32 %not2, %b
call void @use(i32 %and)
%or3 = or i32 %not1, %and
ret i32 %or3
}

define i32 @or_and_not_not_wrong_a(i32 %a, i32 %b, i32 %c, i32 %d) {
; CHECK-LABEL: @or_and_not_not_wrong_a(
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[B:%.*]], [[D:%.*]]
Expand Down Expand Up @@ -1337,6 +1772,316 @@ define i32 @or_and_not_not_wrong_b(i32 %a, i32 %b, i32 %c, i32 %d) {
ret i32 %or3
}

; (b | ~(a & c)) & ~(a & b) --> ~((b | c) & a)

define i32 @and_or_not_not(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @and_or_not_not(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[AND3:%.*]] = xor i32 [[AND1]], [[OR]]
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %b, %a
%not1 = xor i32 %and1, -1
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or = or i32 %not2, %b
%and3 = and i32 %or, %not1
ret i32 %and3
}

define i32 @and_or_not_not_commute1(i32 %a, i32 %b0, i32 %c) {
; CHECK-LABEL: @and_or_not_not_commute1(
; CHECK-NEXT: [[B:%.*]] = sdiv i32 42, [[B0:%.*]]
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[B]], [[A:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR:%.*]] = or i32 [[B]], [[NOT2]]
; CHECK-NEXT: [[AND3:%.*]] = xor i32 [[AND1]], [[OR]]
; CHECK-NEXT: ret i32 [[AND3]]
;
%b = sdiv i32 42, %b0 ; thwart complexity-based canonicalization
%and1 = and i32 %b, %a
%not1 = xor i32 %and1, -1
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or = or i32 %b, %not2
%and3 = and i32 %or, %not1
ret i32 %and3
}

define i32 @and_or_not_not_commute2(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @and_or_not_not_commute2(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[AND3:%.*]] = xor i32 [[AND1]], [[OR]]
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %b, %a
%not1 = xor i32 %and1, -1
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or = or i32 %not2, %b
%and3 = and i32 %or, %not1
ret i32 %and3
}

define i32 @and_or_not_not_commute3(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @and_or_not_not_commute3(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[C:%.*]], [[A]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[AND3:%.*]] = xor i32 [[AND1]], [[OR]]
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %b, %a
%not1 = xor i32 %and1, -1
%and2 = and i32 %c, %a
%not2 = xor i32 %and2, -1
%or = or i32 %not2, %b
%and3 = and i32 %or, %not1
ret i32 %and3
}

define i32 @and_or_not_not_commute4(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @and_or_not_not_commute4(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[AND3:%.*]] = xor i32 [[AND1]], [[OR]]
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %a, %b
%not1 = xor i32 %and1, -1
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or = or i32 %not2, %b
%and3 = and i32 %or, %not1
ret i32 %and3
}

define i32 @and_or_not_not_commute5(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @and_or_not_not_commute5(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[AND3:%.*]] = xor i32 [[AND1]], [[OR]]
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %b, %a
%not1 = xor i32 %and1, -1
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or = or i32 %not2, %b
%and3 = and i32 %not1, %or
ret i32 %and3
}

define i32 @and_or_not_not_commute6(i32 %a, i32 %b0, i32 %c) {
; CHECK-LABEL: @and_or_not_not_commute6(
; CHECK-NEXT: [[B:%.*]] = sdiv i32 42, [[B0:%.*]]
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[B]], [[A:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[C:%.*]], [[A]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR:%.*]] = or i32 [[B]], [[NOT2]]
; CHECK-NEXT: [[AND3:%.*]] = xor i32 [[AND1]], [[OR]]
; CHECK-NEXT: ret i32 [[AND3]]
;
%b = sdiv i32 42, %b0 ; thwart complexity-based canonicalization
%and1 = and i32 %b, %a
%not1 = xor i32 %and1, -1
%and2 = and i32 %c, %a
%not2 = xor i32 %and2, -1
%or = or i32 %b, %not2
%and3 = and i32 %or, %not1
ret i32 %and3
}

define i32 @and_or_not_not_commute7(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @and_or_not_not_commute7(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[C:%.*]], [[A]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[AND3:%.*]] = xor i32 [[AND1]], [[OR]]
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %a, %b
%not1 = xor i32 %and1, -1
%and2 = and i32 %c, %a
%not2 = xor i32 %and2, -1
%or = or i32 %not2, %b
%and3 = and i32 %or, %not1
ret i32 %and3
}

define i32 @and_or_not_not_extra_not_use1(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @and_or_not_not_extra_not_use1(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[AND3:%.*]] = xor i32 [[AND1]], [[OR]]
; CHECK-NEXT: call void @use(i32 [[NOT1]])
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %b, %a
%not1 = xor i32 %and1, -1
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or = or i32 %not2, %b
%and3 = and i32 %or, %not1
call void @use(i32 %not1)
ret i32 %and3
}

define i32 @and_or_not_not_extra_not_use2(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @and_or_not_not_extra_not_use2(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[AND3:%.*]] = xor i32 [[AND1]], [[OR]]
; CHECK-NEXT: call void @use(i32 [[NOT2]])
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %b, %a
%not1 = xor i32 %and1, -1
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or = or i32 %not2, %b
%and3 = and i32 %or, %not1
call void @use(i32 %not2)
ret i32 %and3
}

define i32 @and_or_not_not_extra_and_use(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @and_or_not_not_extra_and_use(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[AND3:%.*]] = xor i32 [[AND1]], [[OR]]
; CHECK-NEXT: call void @use(i32 [[OR]])
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %b, %a
%not1 = xor i32 %and1, -1
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or = or i32 %not2, %b
%and3 = and i32 %or, %not1
call void @use(i32 %or)
ret i32 %and3
}

define i32 @and_or_not_not_extra_or_use1(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @and_or_not_not_extra_or_use1(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[AND3:%.*]] = xor i32 [[AND1]], [[OR]]
; CHECK-NEXT: call void @use(i32 [[AND1]])
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %b, %a
%not1 = xor i32 %and1, -1
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or = or i32 %not2, %b
%and3 = and i32 %or, %not1
call void @use(i32 %and1)
ret i32 %and3
}

define i32 @and_or_not_not_extra_or_use2(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @and_or_not_not_extra_or_use2(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[AND3:%.*]] = xor i32 [[AND1]], [[OR]]
; CHECK-NEXT: call void @use(i32 [[AND2]])
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %b, %a
%not1 = xor i32 %and1, -1
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or = or i32 %not2, %b
%and3 = and i32 %or, %not1
call void @use(i32 %and2)
ret i32 %and3
}

define i32 @and_or_not_not_2_extra_uses(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @and_or_not_not_2_extra_uses(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: call void @use(i32 [[AND1]])
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: call void @use(i32 [[OR]])
; CHECK-NEXT: [[AND3:%.*]] = xor i32 [[AND1]], [[OR]]
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %b, %a
call void @use(i32 %and1)
%not1 = xor i32 %and1, -1
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or = or i32 %not2, %b
call void @use(i32 %or)
%and3 = and i32 %not1, %or
ret i32 %and3
}

define i32 @and_or_not_not_wrong_a(i32 %a, i32 %b, i32 %c, i32 %d) {
; CHECK-LABEL: @and_or_not_not_wrong_a(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[B:%.*]], [[D:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A:%.*]], [[C:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR:%.*]] = or i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[AND3:%.*]] = xor i32 [[AND1]], [[OR]]
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %b, %d
%not1 = xor i32 %and1, -1
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or = or i32 %not2, %b
%and3 = and i32 %or, %not1
ret i32 %and3
}

define i32 @and_or_not_not_wrong_b(i32 %a, i32 %b, i32 %c, i32 %d) {
; CHECK-LABEL: @and_or_not_not_wrong_b(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[D:%.*]], [[A:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[A]], [[C:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[OR:%.*]] = or i32 [[NOT2]], [[B:%.*]]
; CHECK-NEXT: [[AND3:%.*]] = and i32 [[OR]], [[NOT1]]
; CHECK-NEXT: ret i32 [[AND3]]
;
%and1 = and i32 %d, %a
%not1 = xor i32 %and1, -1
%and2 = and i32 %a, %c
%not2 = xor i32 %and2, -1
%or = or i32 %not2, %b
%and3 = and i32 %or, %not1
ret i32 %and3
}

; (a & ~(b | c)) | ~(a | (b ^ c)) --> (~a & b & c) | ~(b | c)

define i32 @and_not_or_or_not_or_xor(i32 %a, i32 %b, i32 %c) {
Expand Down