match(Op0, m_c_Xor(m_Not(m_Specific(A)), m_Specific(B)))))
return Op0;
- // (A | B) | (A ^ B) --> A | B
- // (B | A) | (A ^ B) --> B | A
- if (match(Op1, m_Xor(m_Value(A), m_Value(B))) &&
- match(Op0, m_c_Or(m_Specific(A), m_Specific(B))))
- return Op0;
-
- // Commute the outer 'or' operands.
- // (A ^ B) | (A | B) --> A | B
- // (A ^ B) | (B | A) --> B | A
- if (match(Op0, m_Xor(m_Value(A), m_Value(B))) &&
- match(Op1, m_c_Or(m_Specific(A), m_Specific(B))))
- return Op1;
-
// (~A & B) | ~(A | B) --> ~A
// (~A & B) | ~(B | A) --> ~A
// (B & ~A) | ~(A | B) --> ~A
define i69 @or_or_xor(i69 %A, i69 %B) {
; CHECK-LABEL: @or_or_xor(
; CHECK-NEXT: [[I1:%.*]] = or i69 [[A:%.*]], [[B:%.*]]
-; CHECK-NEXT: ret i69 [[I1]]
+; CHECK-NEXT: [[I2:%.*]] = xor i69 [[A]], [[B]]
+; CHECK-NEXT: [[I3:%.*]] = or i69 [[I1]], [[I2]]
+; CHECK-NEXT: ret i69 [[I3]]
;
%i1 = or i69 %A, %B
%i2 = xor i69 %A, %B
ret i69 %i3
}
-; (B | A) | (A ^ B) --> B | A
-
-define i8 @or_or_xor_inner_or_commuted(i8 %A, i8 %B) {
-; CHECK-LABEL: @or_or_xor_inner_or_commuted(
-; CHECK-NEXT: [[I1:%.*]] = or i8 [[B:%.*]], [[A:%.*]]
-; CHECK-NEXT: ret i8 [[I1]]
-;
- %i1 = or i8 %B, %A
- %i2 = xor i8 %A, %B
- %i3 = or i8 %i1, %i2
- ret i8 %i3
-}
-
-; (A ^ B) | (A | B) --> A | B
-
define <4 x i4> @or_or_xor_commuted(<4 x i4> %A, <4 x i4> %B) {
; CHECK-LABEL: @or_or_xor_commuted(
; CHECK-NEXT: [[I1:%.*]] = or <4 x i4> [[A:%.*]], [[B:%.*]]
-; CHECK-NEXT: ret <4 x i4> [[I1]]
+; CHECK-NEXT: [[I2:%.*]] = xor <4 x i4> [[A]], [[B]]
+; CHECK-NEXT: [[I3:%.*]] = or <4 x i4> [[I2]], [[I1]]
+; CHECK-NEXT: ret <4 x i4> [[I3]]
;
%i1 = or <4 x i4> %A, %B
%i2 = xor <4 x i4> %A, %B
ret <4 x i4> %i3
}
-; (A ^ B) | (B | A) --> B | A
-
-define i4 @or_or_xor_inner_or_outer_or_commuted(i4 %A, i4 %B) {
-; CHECK-LABEL: @or_or_xor_inner_or_outer_or_commuted(
-; CHECK-NEXT: [[I1:%.*]] = or i4 [[B:%.*]], [[A:%.*]]
-; CHECK-NEXT: ret i4 [[I1]]
-;
- %i1 = or i4 %B, %A
- %i2 = xor i4 %A, %B
- %i3 = or i4 %i2, %i1
- ret i4 %i3
-}
-
define i32 @shifted_all_ones(i32 %shamt) {
; CHECK-LABEL: @shifted_all_ones(
; CHECK-NEXT: ret i32 -1