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

This commit is contained in:
Stanislav Mekhanoshin 2021-10-22 11:59:15 -07:00
parent 27181cad0d
commit 55f7cc1a9a
1 changed files with 139 additions and 0 deletions

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@ -922,3 +922,142 @@ define i32 @or_not_and_wrong_b(i32 %a, i32 %b, i32 %c, i32 %d) {
%or3 = or i32 %and1, %and2
ret i32 %or3
}
; (b & ~(a | c)) | ~(a | b) --> ~((b & c) | a)
define i32 @or_and_not_not(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @or_and_not_not(
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[B:%.*]], [[A:%.*]]
; 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: [[OR3:%.*]] = or i32 [[AND]], [[NOT1]]
; CHECK-NEXT: ret i32 [[OR3]]
;
%or1 = or i32 %b, %a
%not1 = xor i32 %or1, -1
%or2 = or i32 %a, %c
%not2 = xor i32 %or2, -1
%and = and i32 %not2, %b
%or3 = or i32 %and, %not1
ret i32 %or3
}
define i32 @or_and_not_not_commute1(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @or_and_not_not_commute1(
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[B:%.*]], [[A:%.*]]
; 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: [[OR3:%.*]] = or i32 [[AND]], [[NOT1]]
; CHECK-NEXT: ret i32 [[OR3]]
;
%or1 = or i32 %b, %a
%not1 = xor i32 %or1, -1
%or2 = or i32 %a, %c
%not2 = xor i32 %or2, -1
%and = and i32 %b, %not2
%or3 = or i32 %and, %not1
ret i32 %or3
}
define i32 @or_and_not_not_commute2(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @or_and_not_not_commute2(
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[B:%.*]], [[A:%.*]]
; 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: [[OR3:%.*]] = or i32 [[AND]], [[NOT1]]
; CHECK-NEXT: ret i32 [[OR3]]
;
%or1 = or i32 %b, %a
%not1 = xor i32 %or1, -1
%or2 = or i32 %a, %c
%not2 = xor i32 %or2, -1
%and = and i32 %not2, %b
%or3 = or i32 %and, %not1
ret i32 %or3
}
define i32 @or_and_not_not_extra_not_use1(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @or_and_not_not_extra_not_use1(
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[B:%.*]], [[A:%.*]]
; 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: [[OR3:%.*]] = or i32 [[AND]], [[NOT1]]
; CHECK-NEXT: call void @use(i32 [[NOT1]])
; CHECK-NEXT: ret i32 [[OR3]]
;
%or1 = or i32 %b, %a
%not1 = xor i32 %or1, -1
%or2 = or i32 %a, %c
%not2 = xor i32 %or2, -1
%and = and i32 %not2, %b
%or3 = or i32 %and, %not1
call void @use(i32 %not1)
ret i32 %or3
}
define i32 @or_and_not_not_extra_not_use2(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @or_and_not_not_extra_not_use2(
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[B:%.*]], [[A:%.*]]
; 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: [[OR3:%.*]] = or i32 [[AND]], [[NOT1]]
; CHECK-NEXT: call void @use(i32 [[NOT2]])
; CHECK-NEXT: ret i32 [[OR3]]
;
%or1 = or i32 %b, %a
%not1 = xor i32 %or1, -1
%or2 = or i32 %a, %c
%not2 = xor i32 %or2, -1
%and = and i32 %not2, %b
%or3 = or i32 %and, %not1
call void @use(i32 %not2)
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:%.*]]
; 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: [[OR3:%.*]] = or i32 [[AND]], [[NOT1]]
; CHECK-NEXT: ret i32 [[OR3]]
;
%or1 = or i32 %b, %d
%not1 = xor i32 %or1, -1
%or2 = or i32 %a, %c
%not2 = xor i32 %or2, -1
%and = and i32 %not2, %b
%or3 = or i32 %and, %not1
ret i32 %or3
}
define i32 @or_and_not_not_wrong_b(i32 %a, i32 %b, i32 %c, i32 %d) {
; CHECK-LABEL: @or_and_not_not_wrong_b(
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[D:%.*]], [[A:%.*]]
; 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: [[OR3:%.*]] = or i32 [[AND]], [[NOT1]]
; CHECK-NEXT: ret i32 [[OR3]]
;
%or1 = or i32 %d, %a
%not1 = xor i32 %or1, -1
%or2 = or i32 %a, %c
%not2 = xor i32 %or2, -1
%and = and i32 %not2, %b
%or3 = or i32 %and, %not1
ret i32 %or3
}