[InstCombine] Precommit new and-xor-or.ll tests. NFC.

This commit is contained in:
Stanislav Mekhanoshin 2021-10-21 15:15:54 -07:00
parent 048d2c76ef
commit c0d6e1b9e0
1 changed files with 224 additions and 0 deletions

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@ -698,3 +698,227 @@ define i32 @not_or_or_not_extra_or1_use(i32 %a0, i32 %b, i32 %c) {
call void @use(i32 %or1)
ret i32 %or2
}
; (c & ~(a | b)) | (b & ~(a | c)) --> ~a & (b ^ c)
define i32 @or_not_and(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @or_not_and(
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[OR1]], -1
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[NOT1]], [[C:%.*]]
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[A]], [[C]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[OR2]], -1
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[OR3:%.*]] = or i32 [[AND1]], [[AND2]]
; CHECK-NEXT: ret i32 [[OR3]]
;
%or1 = or i32 %a, %b
%not1 = xor i32 %or1, -1
%and1 = and i32 %not1, %c
%or2 = or i32 %a, %c
%not2 = xor i32 %or2, -1
%and2 = and i32 %not2, %b
%or3 = or i32 %and1, %and2
ret i32 %or3
}
define i32 @or_not_and_commute1(i32 %a, i32 %b0, i32 %c) {
; CHECK-LABEL: @or_not_and_commute1(
; CHECK-NEXT: [[B:%.*]] = sdiv i32 42, [[B0:%.*]]
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[B]], [[A:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[OR1]], -1
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[NOT1]], [[C:%.*]]
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[A]], [[C]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[OR2]], -1
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[B]], [[NOT2]]
; CHECK-NEXT: [[OR3:%.*]] = or i32 [[AND1]], [[AND2]]
; CHECK-NEXT: ret i32 [[OR3]]
;
%b = sdiv i32 42, %b0 ; thwart complexity-based canonicalization
%or1 = or i32 %a, %b
%not1 = xor i32 %or1, -1
%and1 = and i32 %not1, %c
%or2 = or i32 %a, %c
%not2 = xor i32 %or2, -1
%and2 = and i32 %b, %not2
%or3 = or i32 %and1, %and2
ret i32 %or3
}
define i32 @or_not_and_commute2(i32 %a, i32 %b0, i32 %c) {
; CHECK-LABEL: @or_not_and_commute2(
; CHECK-NEXT: [[B:%.*]] = sdiv i32 42, [[B0:%.*]]
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[B]], [[A:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[OR1]], -1
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[NOT1]], [[C:%.*]]
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[A]], [[C]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[OR2]], -1
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[B]], [[NOT2]]
; CHECK-NEXT: [[OR3:%.*]] = or i32 [[AND2]], [[AND1]]
; CHECK-NEXT: ret i32 [[OR3]]
;
%b = sdiv i32 42, %b0 ; thwart complexity-based canonicalization
%or1 = or i32 %a, %b
%not1 = xor i32 %or1, -1
%and1 = and i32 %not1, %c
%or2 = or i32 %a, %c
%not2 = xor i32 %or2, -1
%and2 = and i32 %b, %not2
%or3 = or i32 %and2, %and1
ret i32 %or3
}
define i32 @or_not_and_commute3(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @or_not_and_commute3(
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[OR1]], -1
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[NOT1]], [[C:%.*]]
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[C]], [[A]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[OR2]], -1
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[OR3:%.*]] = or i32 [[AND1]], [[AND2]]
; CHECK-NEXT: ret i32 [[OR3]]
;
%or1 = or i32 %b, %a
%not1 = xor i32 %or1, -1
%and1 = and i32 %not1, %c
%or2 = or i32 %c, %a
%not2 = xor i32 %or2, -1
%and2 = and i32 %not2, %b
%or3 = or i32 %and1, %and2
ret i32 %or3
}
define i32 @or_not_and_extra_not_use1(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @or_not_and_extra_not_use1(
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[OR1]], -1
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[NOT1]], [[C:%.*]]
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[A]], [[C]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[OR2]], -1
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[OR3:%.*]] = or i32 [[AND1]], [[AND2]]
; CHECK-NEXT: call void @use(i32 [[NOT1]])
; CHECK-NEXT: ret i32 [[OR3]]
;
%or1 = or i32 %a, %b
%not1 = xor i32 %or1, -1
%and1 = and i32 %not1, %c
%or2 = or i32 %a, %c
%not2 = xor i32 %or2, -1
%and2 = and i32 %not2, %b
%or3 = or i32 %and1, %and2
call void @use(i32 %not1)
ret i32 %or3
}
define i32 @or_not_and_extra_not_use2(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @or_not_and_extra_not_use2(
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[OR1]], -1
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[NOT1]], [[C:%.*]]
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[A]], [[C]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[OR2]], -1
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[OR3:%.*]] = or i32 [[AND1]], [[AND2]]
; CHECK-NEXT: call void @use(i32 [[NOT2]])
; CHECK-NEXT: ret i32 [[OR3]]
;
%or1 = or i32 %a, %b
%not1 = xor i32 %or1, -1
%and1 = and i32 %not1, %c
%or2 = or i32 %a, %c
%not2 = xor i32 %or2, -1
%and2 = and i32 %not2, %b
%or3 = or i32 %and1, %and2
call void @use(i32 %not2)
ret i32 %or3
}
define i32 @or_not_and_extra_and_use1(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @or_not_and_extra_and_use1(
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[OR1]], -1
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[NOT1]], [[C:%.*]]
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[A]], [[C]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[OR2]], -1
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[OR3:%.*]] = or i32 [[AND1]], [[AND2]]
; CHECK-NEXT: call void @use(i32 [[AND1]])
; CHECK-NEXT: ret i32 [[OR3]]
;
%or1 = or i32 %a, %b
%not1 = xor i32 %or1, -1
%and1 = and i32 %not1, %c
%or2 = or i32 %a, %c
%not2 = xor i32 %or2, -1
%and2 = and i32 %not2, %b
%or3 = or i32 %and1, %and2
call void @use(i32 %and1)
ret i32 %or3
}
define i32 @or_not_and_extra_and_use2(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @or_not_and_extra_and_use2(
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[OR1]], -1
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[NOT1]], [[C:%.*]]
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[A]], [[C]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[OR2]], -1
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[OR3:%.*]] = or i32 [[AND1]], [[AND2]]
; CHECK-NEXT: call void @use(i32 [[AND2]])
; CHECK-NEXT: ret i32 [[OR3]]
;
%or1 = or i32 %a, %b
%not1 = xor i32 %or1, -1
%and1 = and i32 %not1, %c
%or2 = or i32 %a, %c
%not2 = xor i32 %or2, -1
%and2 = and i32 %not2, %b
%or3 = or i32 %and1, %and2
call void @use(i32 %and2)
ret i32 %or3
}
define i32 @or_not_and_wrong_c(i32 %a, i32 %b, i32 %c, i32 %d) {
; CHECK-LABEL: @or_not_and_wrong_c(
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[OR1]], -1
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[NOT1]], [[C:%.*]]
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[A]], [[D:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[OR2]], -1
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[NOT2]], [[B]]
; CHECK-NEXT: [[OR3:%.*]] = or i32 [[AND1]], [[AND2]]
; CHECK-NEXT: ret i32 [[OR3]]
;
%or1 = or i32 %a, %b
%not1 = xor i32 %or1, -1
%and1 = and i32 %not1, %c
%or2 = or i32 %a, %d
%not2 = xor i32 %or2, -1
%and2 = and i32 %not2, %b
%or3 = or i32 %and1, %and2
ret i32 %or3
}
define i32 @or_not_and_wrong_b(i32 %a, i32 %b, i32 %c, i32 %d) {
; CHECK-LABEL: @or_not_and_wrong_b(
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[OR1]], -1
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[NOT1]], [[C:%.*]]
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[A]], [[C]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[OR2]], -1
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[NOT2]], [[D:%.*]]
; CHECK-NEXT: [[OR3:%.*]] = or i32 [[AND1]], [[AND2]]
; CHECK-NEXT: ret i32 [[OR3]]
;
%or1 = or i32 %a, %b
%not1 = xor i32 %or1, -1
%and1 = and i32 %not1, %c
%or2 = or i32 %a, %c
%not2 = xor i32 %or2, -1
%and2 = and i32 %not2, %d
%or3 = or i32 %and1, %and2
ret i32 %or3
}