; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt < %s -instsimplify -S | FileCheck %s define i8 @and0(i8 %x) { ; CHECK-LABEL: @and0( ; CHECK-NEXT: ret i8 0 ; %r = and i8 %x, 0 ret i8 %r } define <2 x i8> @and0_vec_undef_elt(<2 x i8> %x) { ; CHECK-LABEL: @and0_vec_undef_elt( ; CHECK-NEXT: ret <2 x i8> zeroinitializer ; %r = and <2 x i8> %x, ret <2 x i8> %r } ; add nsw (xor X, signbit), signbit --> X define <2 x i32> @add_nsw_signbit(<2 x i32> %x) { ; CHECK-LABEL: @add_nsw_signbit( ; CHECK-NEXT: ret <2 x i32> [[X:%.*]] ; %y = xor <2 x i32> %x, %z = add nsw <2 x i32> %y, ret <2 x i32> %z } ; Undef elements in either constant vector are ok. define <2 x i32> @add_nsw_signbit_undef(<2 x i32> %x) { ; CHECK-LABEL: @add_nsw_signbit_undef( ; CHECK-NEXT: ret <2 x i32> [[X:%.*]] ; %y = xor <2 x i32> %x, %z = add nsw <2 x i32> %y, ret <2 x i32> %z } ; add nuw (xor X, signbit), signbit --> X define <2 x i5> @add_nuw_signbit(<2 x i5> %x) { ; CHECK-LABEL: @add_nuw_signbit( ; CHECK-NEXT: ret <2 x i5> [[X:%.*]] ; %y = xor <2 x i5> %x, %z = add nuw <2 x i5> %y, ret <2 x i5> %z } ; Undef elements in either constant vector are ok. define <2 x i5> @add_nuw_signbit_undef(<2 x i5> %x) { ; CHECK-LABEL: @add_nuw_signbit_undef( ; CHECK-NEXT: ret <2 x i5> [[X:%.*]] ; %y = xor <2 x i5> %x, %z = add nuw <2 x i5> %y, ret <2 x i5> %z } define i64 @pow2(i32 %x) { ; CHECK-LABEL: @pow2( ; CHECK-NEXT: [[NEGX:%.*]] = sub i32 0, [[X:%.*]] ; CHECK-NEXT: [[X2:%.*]] = and i32 [[X]], [[NEGX]] ; CHECK-NEXT: [[E:%.*]] = zext i32 [[X2]] to i64 ; CHECK-NEXT: ret i64 [[E]] ; %negx = sub i32 0, %x %x2 = and i32 %x, %negx %e = zext i32 %x2 to i64 %nege = sub i64 0, %e %e2 = and i64 %e, %nege ret i64 %e2 } define i64 @pow2b(i32 %x) { ; CHECK-LABEL: @pow2b( ; CHECK-NEXT: [[SH:%.*]] = shl i32 2, [[X:%.*]] ; CHECK-NEXT: [[E:%.*]] = zext i32 [[SH]] to i64 ; CHECK-NEXT: ret i64 [[E]] ; %sh = shl i32 2, %x %e = zext i32 %sh to i64 %nege = sub i64 0, %e %e2 = and i64 %e, %nege ret i64 %e2 } define i1 @and_of_icmps0(i32 %b) { ; CHECK-LABEL: @and_of_icmps0( ; CHECK-NEXT: ret i1 false ; %1 = add i32 %b, 2 %2 = icmp ult i32 %1, 4 %cmp3 = icmp sgt i32 %b, 2 %cmp = and i1 %2, %cmp3 ret i1 %cmp } define <2 x i1> @and_of_icmps0_vec(<2 x i32> %b) { ; CHECK-LABEL: @and_of_icmps0_vec( ; CHECK-NEXT: ret <2 x i1> zeroinitializer ; %1 = add <2 x i32> %b, %2 = icmp ult <2 x i32> %1, %cmp3 = icmp sgt <2 x i32> %b, %cmp = and <2 x i1> %2, %cmp3 ret <2 x i1> %cmp } define i1 @and_of_icmps1(i32 %b) { ; CHECK-LABEL: @and_of_icmps1( ; CHECK-NEXT: ret i1 false ; %1 = add nsw i32 %b, 2 %2 = icmp slt i32 %1, 4 %cmp3 = icmp sgt i32 %b, 2 %cmp = and i1 %2, %cmp3 ret i1 %cmp } define <2 x i1> @and_of_icmps1_vec(<2 x i32> %b) { ; CHECK-LABEL: @and_of_icmps1_vec( ; CHECK-NEXT: ret <2 x i1> zeroinitializer ; %1 = add nsw <2 x i32> %b, %2 = icmp slt <2 x i32> %1, %cmp3 = icmp sgt <2 x i32> %b, %cmp = and <2 x i1> %2, %cmp3 ret <2 x i1> %cmp } define i1 @and_of_icmps2(i32 %b) { ; CHECK-LABEL: @and_of_icmps2( ; CHECK-NEXT: ret i1 false ; %1 = add i32 %b, 2 %2 = icmp ule i32 %1, 3 %cmp3 = icmp sgt i32 %b, 2 %cmp = and i1 %2, %cmp3 ret i1 %cmp } define <2 x i1> @and_of_icmps2_vec(<2 x i32> %b) { ; CHECK-LABEL: @and_of_icmps2_vec( ; CHECK-NEXT: ret <2 x i1> zeroinitializer ; %1 = add <2 x i32> %b, %2 = icmp ule <2 x i32> %1, %cmp3 = icmp sgt <2 x i32> %b, %cmp = and <2 x i1> %2, %cmp3 ret <2 x i1> %cmp } define i1 @and_of_icmps3(i32 %b) { ; CHECK-LABEL: @and_of_icmps3( ; CHECK-NEXT: ret i1 false ; %1 = add nsw i32 %b, 2 %2 = icmp sle i32 %1, 3 %cmp3 = icmp sgt i32 %b, 2 %cmp = and i1 %2, %cmp3 ret i1 %cmp } define <2 x i1> @and_of_icmps3_vec(<2 x i32> %b) { ; CHECK-LABEL: @and_of_icmps3_vec( ; CHECK-NEXT: ret <2 x i1> zeroinitializer ; %1 = add nsw <2 x i32> %b, %2 = icmp sle <2 x i32> %1, %cmp3 = icmp sgt <2 x i32> %b, %cmp = and <2 x i1> %2, %cmp3 ret <2 x i1> %cmp } define i1 @and_of_icmps4(i32 %b) { ; CHECK-LABEL: @and_of_icmps4( ; CHECK-NEXT: ret i1 false ; %1 = add nuw i32 %b, 2 %2 = icmp ult i32 %1, 4 %cmp3 = icmp ugt i32 %b, 2 %cmp = and i1 %2, %cmp3 ret i1 %cmp } define <2 x i1> @and_of_icmps4_vec(<2 x i32> %b) { ; CHECK-LABEL: @and_of_icmps4_vec( ; CHECK-NEXT: ret <2 x i1> zeroinitializer ; %1 = add nuw <2 x i32> %b, %2 = icmp ult <2 x i32> %1, %cmp3 = icmp ugt <2 x i32> %b, %cmp = and <2 x i1> %2, %cmp3 ret <2 x i1> %cmp } define i1 @and_of_icmps5(i32 %b) { ; CHECK-LABEL: @and_of_icmps5( ; CHECK-NEXT: ret i1 false ; %1 = add nuw i32 %b, 2 %2 = icmp ule i32 %1, 3 %cmp3 = icmp ugt i32 %b, 2 %cmp = and i1 %2, %cmp3 ret i1 %cmp } define <2 x i1> @and_of_icmps5_vec(<2 x i32> %b) { ; CHECK-LABEL: @and_of_icmps5_vec( ; CHECK-NEXT: ret <2 x i1> zeroinitializer ; %1 = add nuw <2 x i32> %b, %2 = icmp ule <2 x i32> %1, %cmp3 = icmp ugt <2 x i32> %b, %cmp = and <2 x i1> %2, %cmp3 ret <2 x i1> %cmp } define i1 @or_of_icmps0(i32 %b) { ; CHECK-LABEL: @or_of_icmps0( ; CHECK-NEXT: ret i1 true ; %1 = add i32 %b, 2 %2 = icmp uge i32 %1, 4 %cmp3 = icmp sle i32 %b, 2 %cmp = or i1 %2, %cmp3 ret i1 %cmp } define <2 x i1> @or_of_icmps0_vec(<2 x i32> %b) { ; CHECK-LABEL: @or_of_icmps0_vec( ; CHECK-NEXT: ret <2 x i1> ; %1 = add <2 x i32> %b, %2 = icmp uge <2 x i32> %1, %cmp3 = icmp sle <2 x i32> %b, %cmp = or <2 x i1> %2, %cmp3 ret <2 x i1> %cmp } define i1 @or_of_icmps1(i32 %b) { ; CHECK-LABEL: @or_of_icmps1( ; CHECK-NEXT: ret i1 true ; %1 = add nsw i32 %b, 2 %2 = icmp sge i32 %1, 4 %cmp3 = icmp sle i32 %b, 2 %cmp = or i1 %2, %cmp3 ret i1 %cmp } define <2 x i1> @or_of_icmps1_vec(<2 x i32> %b) { ; CHECK-LABEL: @or_of_icmps1_vec( ; CHECK-NEXT: ret <2 x i1> ; %1 = add nsw <2 x i32> %b, %2 = icmp sge <2 x i32> %1, %cmp3 = icmp sle <2 x i32> %b, %cmp = or <2 x i1> %2, %cmp3 ret <2 x i1> %cmp } define i1 @or_of_icmps2(i32 %b) { ; CHECK-LABEL: @or_of_icmps2( ; CHECK-NEXT: ret i1 true ; %1 = add i32 %b, 2 %2 = icmp ugt i32 %1, 3 %cmp3 = icmp sle i32 %b, 2 %cmp = or i1 %2, %cmp3 ret i1 %cmp } define <2 x i1> @or_of_icmps2_vec(<2 x i32> %b) { ; CHECK-LABEL: @or_of_icmps2_vec( ; CHECK-NEXT: ret <2 x i1> ; %1 = add <2 x i32> %b, %2 = icmp ugt <2 x i32> %1, %cmp3 = icmp sle <2 x i32> %b, %cmp = or <2 x i1> %2, %cmp3 ret <2 x i1> %cmp } define i1 @or_of_icmps3(i32 %b) { ; CHECK-LABEL: @or_of_icmps3( ; CHECK-NEXT: ret i1 true ; %1 = add nsw i32 %b, 2 %2 = icmp sgt i32 %1, 3 %cmp3 = icmp sle i32 %b, 2 %cmp = or i1 %2, %cmp3 ret i1 %cmp } define <2 x i1> @or_of_icmps3_vec(<2 x i32> %b) { ; CHECK-LABEL: @or_of_icmps3_vec( ; CHECK-NEXT: ret <2 x i1> ; %1 = add nsw <2 x i32> %b, %2 = icmp sgt <2 x i32> %1, %cmp3 = icmp sle <2 x i32> %b, %cmp = or <2 x i1> %2, %cmp3 ret <2 x i1> %cmp } define i1 @or_of_icmps4(i32 %b) { ; CHECK-LABEL: @or_of_icmps4( ; CHECK-NEXT: ret i1 true ; %1 = add nuw i32 %b, 2 %2 = icmp uge i32 %1, 4 %cmp3 = icmp ule i32 %b, 2 %cmp = or i1 %2, %cmp3 ret i1 %cmp } define <2 x i1> @or_of_icmps4_vec(<2 x i32> %b) { ; CHECK-LABEL: @or_of_icmps4_vec( ; CHECK-NEXT: ret <2 x i1> ; %1 = add nuw <2 x i32> %b, %2 = icmp uge <2 x i32> %1, %cmp3 = icmp ule <2 x i32> %b, %cmp = or <2 x i1> %2, %cmp3 ret <2 x i1> %cmp } define i1 @or_of_icmps5(i32 %b) { ; CHECK-LABEL: @or_of_icmps5( ; CHECK-NEXT: ret i1 true ; %1 = add nuw i32 %b, 2 %2 = icmp ugt i32 %1, 3 %cmp3 = icmp ule i32 %b, 2 %cmp = or i1 %2, %cmp3 ret i1 %cmp } define <2 x i1> @or_of_icmps5_vec(<2 x i32> %b) { ; CHECK-LABEL: @or_of_icmps5_vec( ; CHECK-NEXT: ret <2 x i1> ; %1 = add nuw <2 x i32> %b, %2 = icmp ugt <2 x i32> %1, %cmp3 = icmp ule <2 x i32> %b, %cmp = or <2 x i1> %2, %cmp3 ret <2 x i1> %cmp } define i32 @neg_nuw(i32 %x) { ; CHECK-LABEL: @neg_nuw( ; CHECK-NEXT: ret i32 0 ; %neg = sub nuw i32 0, %x ret i32 %neg } define i1 @and_icmp1(i32 %x, i32 %y) { ; CHECK-LABEL: @and_icmp1( ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 [[X:%.*]], [[Y:%.*]] ; CHECK-NEXT: ret i1 [[TMP1]] ; %1 = icmp ult i32 %x, %y %2 = icmp ne i32 %y, 0 %3 = and i1 %1, %2 ret i1 %3 } define i1 @and_icmp2(i32 %x, i32 %y) { ; CHECK-LABEL: @and_icmp2( ; CHECK-NEXT: [[TMP1:%.*]] = icmp ugt i32 [[X:%.*]], [[Y:%.*]] ; CHECK-NEXT: ret i1 [[TMP1]] ; %1 = icmp ugt i32 %x, %y %2 = icmp ne i32 %x, 0 %3 = and i1 %1, %2 ret i1 %3 } define i1 @and_icmp3(i32 %x, i32 %y) { ; CHECK-LABEL: @and_icmp3( ; CHECK-NEXT: ret i1 false ; %1 = icmp ult i32 %x, %y %2 = icmp eq i32 %y, 0 %3 = and i1 %1, %2 ret i1 %3 } define i1 @and_icmp4(i32 %x, i32 %y) { ; CHECK-LABEL: @and_icmp4( ; CHECK-NEXT: ret i1 false ; %1 = icmp ugt i32 %x, %y %2 = icmp eq i32 %x, 0 %3 = and i1 %1, %2 ret i1 %3 } define i1 @or_icmp1(i32 %x, i32 %y) { ; CHECK-LABEL: @or_icmp1( ; CHECK-NEXT: [[TMP1:%.*]] = icmp ne i32 [[Y:%.*]], 0 ; CHECK-NEXT: ret i1 [[TMP1]] ; %1 = icmp ult i32 %x, %y %2 = icmp ne i32 %y, 0 %3 = or i1 %1, %2 ret i1 %3 } define i1 @or_icmp2(i32 %x, i32 %y) { ; CHECK-LABEL: @or_icmp2( ; CHECK-NEXT: [[TMP1:%.*]] = icmp ne i32 [[X:%.*]], 0 ; CHECK-NEXT: ret i1 [[TMP1]] ; %1 = icmp ugt i32 %x, %y %2 = icmp ne i32 %x, 0 %3 = or i1 %1, %2 ret i1 %3 } define i1 @or_icmp3(i32 %x, i32 %y) { ; CHECK-LABEL: @or_icmp3( ; CHECK-NEXT: ret i1 true ; %1 = icmp uge i32 %x, %y %2 = icmp ne i32 %y, 0 %3 = or i1 %1, %2 ret i1 %3 } define i1 @or_icmp4(i32 %x, i32 %y) { ; CHECK-LABEL: @or_icmp4( ; CHECK-NEXT: ret i1 true ; %1 = icmp ule i32 %x, %y %2 = icmp ne i32 %x, 0 %3 = or i1 %1, %2 ret i1 %3 } define i1 @or_icmp5(i32 %x, i32 %y) { ; CHECK-LABEL: @or_icmp5( ; CHECK-NEXT: [[TMP1:%.*]] = icmp uge i32 [[X:%.*]], [[Y:%.*]] ; CHECK-NEXT: ret i1 [[TMP1]] ; %1 = icmp uge i32 %x, %y %2 = icmp eq i32 %y, 0 %3 = or i1 %1, %2 ret i1 %3 } define i1 @or_icmp6(i32 %x, i32 %y) { ; CHECK-LABEL: @or_icmp6( ; CHECK-NEXT: [[TMP1:%.*]] = icmp ule i32 [[X:%.*]], [[Y:%.*]] ; CHECK-NEXT: ret i1 [[TMP1]] ; %1 = icmp ule i32 %x, %y %2 = icmp eq i32 %x, 0 %3 = or i1 %1, %2 ret i1 %3 } ; PR27869 - Look through casts to eliminate cmps and bitwise logic. define i32 @and_of_zexted_icmps(i32 %i) { ; CHECK-LABEL: @and_of_zexted_icmps( ; CHECK-NEXT: ret i32 0 ; %cmp0 = icmp eq i32 %i, 0 %conv0 = zext i1 %cmp0 to i32 %cmp1 = icmp ugt i32 %i, 4 %conv1 = zext i1 %cmp1 to i32 %and = and i32 %conv0, %conv1 ret i32 %and } ; Make sure vectors work too. define <4 x i32> @and_of_zexted_icmps_vec(<4 x i32> %i) { ; CHECK-LABEL: @and_of_zexted_icmps_vec( ; CHECK-NEXT: ret <4 x i32> zeroinitializer ; %cmp0 = icmp eq <4 x i32> %i, zeroinitializer %conv0 = zext <4 x i1> %cmp0 to <4 x i32> %cmp1 = icmp slt <4 x i32> %i, zeroinitializer %conv1 = zext <4 x i1> %cmp1 to <4 x i32> %and = and <4 x i32> %conv0, %conv1 ret <4 x i32> %and } ; Try a different cast and weird types. define i5 @and_of_sexted_icmps(i3 %i) { ; CHECK-LABEL: @and_of_sexted_icmps( ; CHECK-NEXT: ret i5 0 ; %cmp0 = icmp eq i3 %i, 0 %conv0 = sext i1 %cmp0 to i5 %cmp1 = icmp ugt i3 %i, 1 %conv1 = sext i1 %cmp1 to i5 %and = and i5 %conv0, %conv1 ret i5 %and } ; Try a different cast and weird vector types. define i3 @and_of_bitcast_icmps_vec(<3 x i65> %i) { ; CHECK-LABEL: @and_of_bitcast_icmps_vec( ; CHECK-NEXT: ret i3 0 ; %cmp0 = icmp sgt <3 x i65> %i, zeroinitializer %conv0 = bitcast <3 x i1> %cmp0 to i3 %cmp1 = icmp slt <3 x i65> %i, zeroinitializer %conv1 = bitcast <3 x i1> %cmp1 to i3 %and = and i3 %conv0, %conv1 ret i3 %and } ; We can't do this if the casts are different. define i16 @and_of_different_cast_icmps(i8 %i) { ; CHECK-LABEL: @and_of_different_cast_icmps( ; CHECK-NEXT: [[CMP0:%.*]] = icmp eq i8 [[I:%.*]], 0 ; CHECK-NEXT: [[CONV0:%.*]] = zext i1 [[CMP0]] to i16 ; CHECK-NEXT: [[CMP1:%.*]] = icmp eq i8 [[I]], 1 ; CHECK-NEXT: [[CONV1:%.*]] = sext i1 [[CMP1]] to i16 ; CHECK-NEXT: [[AND:%.*]] = and i16 [[CONV0]], [[CONV1]] ; CHECK-NEXT: ret i16 [[AND]] ; %cmp0 = icmp eq i8 %i, 0 %conv0 = zext i1 %cmp0 to i16 %cmp1 = icmp eq i8 %i, 1 %conv1 = sext i1 %cmp1 to i16 %and = and i16 %conv0, %conv1 ret i16 %and } define <2 x i3> @and_of_different_cast_icmps_vec(<2 x i8> %i, <2 x i16> %j) { ; CHECK-LABEL: @and_of_different_cast_icmps_vec( ; CHECK-NEXT: [[CMP0:%.*]] = icmp eq <2 x i8> [[I:%.*]], zeroinitializer ; CHECK-NEXT: [[CONV0:%.*]] = zext <2 x i1> [[CMP0]] to <2 x i3> ; CHECK-NEXT: [[CMP1:%.*]] = icmp ugt <2 x i16> [[J:%.*]], ; CHECK-NEXT: [[CONV1:%.*]] = zext <2 x i1> [[CMP1]] to <2 x i3> ; CHECK-NEXT: [[AND:%.*]] = and <2 x i3> [[CONV0]], [[CONV1]] ; CHECK-NEXT: ret <2 x i3> [[AND]] ; %cmp0 = icmp eq <2 x i8> %i, zeroinitializer %conv0 = zext <2 x i1> %cmp0 to <2 x i3> %cmp1 = icmp ugt <2 x i16> %j, %conv1 = zext <2 x i1> %cmp1 to <2 x i3> %and = and <2 x i3> %conv0, %conv1 ret <2 x i3> %and } define i32 @or_of_zexted_icmps(i32 %i) { ; CHECK-LABEL: @or_of_zexted_icmps( ; CHECK-NEXT: ret i32 1 ; %cmp0 = icmp ne i32 %i, 0 %conv0 = zext i1 %cmp0 to i32 %cmp1 = icmp uge i32 4, %i %conv1 = zext i1 %cmp1 to i32 %or = or i32 %conv0, %conv1 ret i32 %or } ; Try a different cast and weird vector types. define i3 @or_of_bitcast_icmps_vec(<3 x i65> %i) { ; CHECK-LABEL: @or_of_bitcast_icmps_vec( ; CHECK-NEXT: ret i3 bitcast (<3 x i1> to i3) ; %cmp0 = icmp sge <3 x i65> %i, zeroinitializer %conv0 = bitcast <3 x i1> %cmp0 to i3 %cmp1 = icmp slt <3 x i65> %i, zeroinitializer %conv1 = bitcast <3 x i1> %cmp1 to i3 %or = or i3 %conv0, %conv1 ret i3 %or } ; We can't simplify if the casts are different. define i16 @or_of_different_cast_icmps(i8 %i) { ; CHECK-LABEL: @or_of_different_cast_icmps( ; CHECK-NEXT: [[CMP0:%.*]] = icmp ne i8 [[I:%.*]], 0 ; CHECK-NEXT: [[CONV0:%.*]] = zext i1 [[CMP0]] to i16 ; CHECK-NEXT: [[CMP1:%.*]] = icmp ne i8 [[I]], 1 ; CHECK-NEXT: [[CONV1:%.*]] = sext i1 [[CMP1]] to i16 ; CHECK-NEXT: [[OR:%.*]] = or i16 [[CONV0]], [[CONV1]] ; CHECK-NEXT: ret i16 [[OR]] ; %cmp0 = icmp ne i8 %i, 0 %conv0 = zext i1 %cmp0 to i16 %cmp1 = icmp ne i8 %i, 1 %conv1 = sext i1 %cmp1 to i16 %or = or i16 %conv0, %conv1 ret i16 %or } ; (A & ~B) | (A ^ B) -> A ^ B define i32 @test43(i32 %a, i32 %b) { ; CHECK-LABEL: @test43( ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[A:%.*]], [[B:%.*]] ; CHECK-NEXT: ret i32 [[XOR]] ; %neg = xor i32 %b, -1 %and = and i32 %a, %neg %xor = xor i32 %a, %b %or = or i32 %and, %xor ret i32 %or } define i32 @test43_commuted_and(i32 %a, i32 %b) { ; CHECK-LABEL: @test43_commuted_and( ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[A:%.*]], [[B:%.*]] ; CHECK-NEXT: ret i32 [[XOR]] ; %neg = xor i32 %b, -1 %and = and i32 %neg, %a %xor = xor i32 %a, %b %or = or i32 %and, %xor ret i32 %or } ; Commute operands of the 'or'. ; (A ^ B) | (A & ~B) -> A ^ B define i32 @test44(i32 %a, i32 %b) { ; CHECK-LABEL: @test44( ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[A:%.*]], [[B:%.*]] ; CHECK-NEXT: ret i32 [[XOR]] ; %xor = xor i32 %a, %b %neg = xor i32 %b, -1 %and = and i32 %a, %neg %or = or i32 %xor, %and ret i32 %or } define i32 @test44_commuted_and(i32 %a, i32 %b) { ; CHECK-LABEL: @test44_commuted_and( ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[A:%.*]], [[B:%.*]] ; CHECK-NEXT: ret i32 [[XOR]] ; %xor = xor i32 %a, %b %neg = xor i32 %b, -1 %and = and i32 %neg, %a %or = or i32 %xor, %and ret i32 %or } ; (~A & ~B) | (~A ^ B) -> ~A ^ B define i32 @test45(i32 %a, i32 %b) { ; CHECK-LABEL: @test45( ; CHECK-NEXT: [[NEGB:%.*]] = xor i32 [[B:%.*]], -1 ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[A:%.*]], [[NEGB]] ; CHECK-NEXT: ret i32 [[XOR]] ; %nega = xor i32 %a, -1 %negb = xor i32 %b, -1 %and = and i32 %nega, %negb %xor = xor i32 %a, %negb %or = or i32 %and, %xor ret i32 %or } define i32 @test45_commuted_and(i32 %a, i32 %b) { ; CHECK-LABEL: @test45_commuted_and( ; CHECK-NEXT: [[NEGB:%.*]] = xor i32 [[B:%.*]], -1 ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[A:%.*]], [[NEGB]] ; CHECK-NEXT: ret i32 [[XOR]] ; %nega = xor i32 %a, -1 %negb = xor i32 %b, -1 %and = and i32 %negb, %nega %xor = xor i32 %a, %negb %or = or i32 %and, %xor ret i32 %or } ; Commute operands of the 'or'. ; (~A ^ B) | (~A & ~B) -> ~A ^ B define i32 @test46(i32 %a, i32 %b) { ; CHECK-LABEL: @test46( ; CHECK-NEXT: [[NEGB:%.*]] = xor i32 [[B:%.*]], -1 ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[A:%.*]], [[NEGB]] ; CHECK-NEXT: ret i32 [[XOR]] ; %nega = xor i32 %a, -1 %negb = xor i32 %b, -1 %and = and i32 %nega, %negb %xor = xor i32 %a, %negb %or = or i32 %xor, %and ret i32 %or } ; (~A & ~B) | (~A ^ B) -> ~A ^ B define i32 @test46_commuted_and(i32 %a, i32 %b) { ; CHECK-LABEL: @test46_commuted_and( ; CHECK-NEXT: [[NEGB:%.*]] = xor i32 [[B:%.*]], -1 ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[A:%.*]], [[NEGB]] ; CHECK-NEXT: ret i32 [[XOR]] ; %nega = xor i32 %a, -1 %negb = xor i32 %b, -1 %and = and i32 %negb, %nega %xor = xor i32 %a, %negb %or = or i32 %xor, %and ret i32 %or } ; (~A ^ B) | (A & B) -> ~A ^ B define i32 @test47(i32 %a, i32 %b) { ; CHECK-LABEL: @test47( ; CHECK-NEXT: [[NEGA:%.*]] = xor i32 [[A:%.*]], -1 ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[NEGA]], [[B:%.*]] ; CHECK-NEXT: ret i32 [[XOR]] ; %nega = xor i32 %a, -1 %and = and i32 %a, %b %xor = xor i32 %nega, %b %or = or i32 %xor, %and ret i32 %or } define i32 @test48(i32 %a, i32 %b) { ; CHECK-LABEL: @test48( ; CHECK-NEXT: [[NEGA:%.*]] = xor i32 [[A:%.*]], -1 ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[B:%.*]], [[NEGA]] ; CHECK-NEXT: ret i32 [[XOR]] ; %nega = xor i32 %a, -1 %and = and i32 %a, %b %xor = xor i32 %b, %nega %or = or i32 %xor, %and ret i32 %or } define i32 @test49(i32 %a, i32 %b) { ; CHECK-LABEL: @test49( ; CHECK-NEXT: [[NEGA:%.*]] = xor i32 [[A:%.*]], -1 ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[B:%.*]], [[NEGA]] ; CHECK-NEXT: ret i32 [[XOR]] ; %nega = xor i32 %a, -1 %and = and i32 %b, %a %xor = xor i32 %b, %nega %or = or i32 %xor, %and ret i32 %or } define i32 @test50(i32 %a, i32 %b) { ; CHECK-LABEL: @test50( ; CHECK-NEXT: [[NEGA:%.*]] = xor i32 [[A:%.*]], -1 ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[NEGA]], [[B:%.*]] ; CHECK-NEXT: ret i32 [[XOR]] ; %nega = xor i32 %a, -1 %and = and i32 %b, %a %xor = xor i32 %nega, %b %or = or i32 %xor, %and ret i32 %or } define i32 @test51(i32 %a, i32 %b) { ; CHECK-LABEL: @test51( ; CHECK-NEXT: [[NEGA:%.*]] = xor i32 [[A:%.*]], -1 ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[NEGA]], [[B:%.*]] ; CHECK-NEXT: ret i32 [[XOR]] ; %nega = xor i32 %a, -1 %and = and i32 %a, %b %xor = xor i32 %nega, %b %or = or i32 %and, %xor ret i32 %or } define i32 @test52(i32 %a, i32 %b) { ; CHECK-LABEL: @test52( ; CHECK-NEXT: [[NEGA:%.*]] = xor i32 [[A:%.*]], -1 ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[B:%.*]], [[NEGA]] ; CHECK-NEXT: ret i32 [[XOR]] ; %nega = xor i32 %a, -1 %and = and i32 %a, %b %xor = xor i32 %b, %nega %or = or i32 %and, %xor ret i32 %or } define i32 @test53(i32 %a, i32 %b) { ; CHECK-LABEL: @test53( ; CHECK-NEXT: [[NEGA:%.*]] = xor i32 [[A:%.*]], -1 ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[B:%.*]], [[NEGA]] ; CHECK-NEXT: ret i32 [[XOR]] ; %nega = xor i32 %a, -1 %and = and i32 %b, %a %xor = xor i32 %b, %nega %or = or i32 %and, %xor ret i32 %or } define i32 @test54(i32 %a, i32 %b) { ; CHECK-LABEL: @test54( ; CHECK-NEXT: [[NEGA:%.*]] = xor i32 [[A:%.*]], -1 ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[NEGA]], [[B:%.*]] ; CHECK-NEXT: ret i32 [[XOR]] ; %nega = xor i32 %a, -1 %and = and i32 %b, %a %xor = xor i32 %nega, %b %or = or i32 %and, %xor ret i32 %or } ; (A & B) | ~(A ^ B) -> ~(A ^ B) define i32 @test55(i32 %a, i32 %b) { ; CHECK-LABEL: @test55( ; CHECK-NEXT: [[AND:%.*]] = and i32 [[A:%.*]], [[B:%.*]] ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[A]], [[B]] ; CHECK-NEXT: [[XNOR:%.*]] = xor i32 [[XOR]], -1 ; CHECK-NEXT: [[OR:%.*]] = or i32 [[AND]], [[XNOR]] ; CHECK-NEXT: ret i32 [[OR]] ; %and = and i32 %a, %b %xor = xor i32 %a, %b %xnor = xor i32 %xor, -1 %or = or i32 %and, %xnor ret i32 %or } ; ~(A ^ B) | (A & B) -> ~(A ^ B) define i32 @test56(i32 %a, i32 %b) { ; CHECK-LABEL: @test56( ; CHECK-NEXT: [[AND:%.*]] = and i32 [[A:%.*]], [[B:%.*]] ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[A]], [[B]] ; CHECK-NEXT: [[XNOR:%.*]] = xor i32 [[XOR]], -1 ; CHECK-NEXT: [[OR:%.*]] = or i32 [[XNOR]], [[AND]] ; CHECK-NEXT: ret i32 [[OR]] ; %and = and i32 %a, %b %xor = xor i32 %a, %b %xnor = xor i32 %xor, -1 %or = or i32 %xnor, %and ret i32 %or } ; (B & A) | ~(A ^ B) -> ~(A ^ B) define i32 @test57(i32 %a, i32 %b) { ; CHECK-LABEL: @test57( ; CHECK-NEXT: [[AND:%.*]] = and i32 [[B:%.*]], [[A:%.*]] ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[A]], [[B]] ; CHECK-NEXT: [[XNOR:%.*]] = xor i32 [[XOR]], -1 ; CHECK-NEXT: [[OR:%.*]] = or i32 [[AND]], [[XNOR]] ; CHECK-NEXT: ret i32 [[OR]] ; %and = and i32 %b, %a %xor = xor i32 %a, %b %xnor = xor i32 %xor, -1 %or = or i32 %and, %xnor ret i32 %or } ; ~(A ^ B) | (A & B) -> ~(A ^ B) define i32 @test58(i32 %a, i32 %b) { ; CHECK-LABEL: @test58( ; CHECK-NEXT: [[AND:%.*]] = and i32 [[B:%.*]], [[A:%.*]] ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[A]], [[B]] ; CHECK-NEXT: [[XNOR:%.*]] = xor i32 [[XOR]], -1 ; CHECK-NEXT: [[OR:%.*]] = or i32 [[XNOR]], [[AND]] ; CHECK-NEXT: ret i32 [[OR]] ; %and = and i32 %b, %a %xor = xor i32 %a, %b %xnor = xor i32 %xor, -1 %or = or i32 %xnor, %and ret i32 %or } define i8 @lshr_perfect_mask(i8 %x) { ; CHECK-LABEL: @lshr_perfect_mask( ; CHECK-NEXT: [[SH:%.*]] = lshr i8 [[X:%.*]], 5 ; CHECK-NEXT: ret i8 [[SH]] ; %sh = lshr i8 %x, 5 %mask = and i8 %sh, 7 ; 0x07 ret i8 %mask } define <2 x i8> @lshr_oversized_mask_splat(<2 x i8> %x) { ; CHECK-LABEL: @lshr_oversized_mask_splat( ; CHECK-NEXT: [[SH:%.*]] = lshr <2 x i8> [[X:%.*]], ; CHECK-NEXT: ret <2 x i8> [[SH]] ; %sh = lshr <2 x i8> %x, %mask = and <2 x i8> %sh, ; 0x87 ret <2 x i8> %mask } define i8 @lshr_undersized_mask(i8 %x) { ; CHECK-LABEL: @lshr_undersized_mask( ; CHECK-NEXT: [[SH:%.*]] = lshr i8 [[X:%.*]], 5 ; CHECK-NEXT: [[MASK:%.*]] = and i8 [[SH]], -2 ; CHECK-NEXT: ret i8 [[MASK]] ; %sh = lshr i8 %x, 5 %mask = and i8 %sh, -2 ; 0xFE ret i8 %mask } define <2 x i8> @shl_perfect_mask_splat(<2 x i8> %x) { ; CHECK-LABEL: @shl_perfect_mask_splat( ; CHECK-NEXT: [[SH:%.*]] = shl <2 x i8> [[X:%.*]], ; CHECK-NEXT: ret <2 x i8> [[SH]] ; %sh = shl <2 x i8> %x, %mask = and <2 x i8> %sh, ; 0xC0 ret <2 x i8> %mask } define i8 @shl_oversized_mask(i8 %x) { ; CHECK-LABEL: @shl_oversized_mask( ; CHECK-NEXT: [[SH:%.*]] = shl i8 [[X:%.*]], 6 ; CHECK-NEXT: ret i8 [[SH]] ; %sh = shl i8 %x, 6 %mask = and i8 %sh, 195 ; 0xC3 ret i8 %mask } define <2 x i8> @shl_undersized_mask_splat(<2 x i8> %x) { ; CHECK-LABEL: @shl_undersized_mask_splat( ; CHECK-NEXT: [[SH:%.*]] = shl <2 x i8> [[X:%.*]], ; CHECK-NEXT: [[MASK:%.*]] = and <2 x i8> [[SH]], ; CHECK-NEXT: ret <2 x i8> [[MASK]] ; %sh = shl <2 x i8> %x, %mask = and <2 x i8> %sh, ; 0x88 ret <2 x i8> %mask } define i32 @reversed_not(i32 %a) { ; CHECK-LABEL: @reversed_not( ; CHECK-NEXT: ret i32 -1 ; %nega = xor i32 -1, %a %or = or i32 %a, %nega ret i32 %or } define i64 @shl_or_and1(i32 %a, i1 %b) { ; CHECK-LABEL: @shl_or_and1( ; CHECK-NEXT: [[TMP1:%.*]] = zext i32 [[A:%.*]] to i64 ; CHECK-NEXT: [[TMP2:%.*]] = zext i1 [[B:%.*]] to i64 ; CHECK-NEXT: [[TMP3:%.*]] = shl nuw i64 [[TMP1]], 32 ; CHECK-NEXT: [[TMP4:%.*]] = or i64 [[TMP2]], [[TMP3]] ; CHECK-NEXT: [[TMP5:%.*]] = and i64 [[TMP4]], 1 ; CHECK-NEXT: ret i64 [[TMP5]] ; %tmp1 = zext i32 %a to i64 %tmp2 = zext i1 %b to i64 %tmp3 = shl nuw i64 %tmp1, 32 %tmp4 = or i64 %tmp2, %tmp3 %tmp5 = and i64 %tmp4, 1 ret i64 %tmp5 } define i64 @shl_or_and2(i32 %a, i1 %b) { ; CHECK-LABEL: @shl_or_and2( ; CHECK-NEXT: [[TMP1:%.*]] = zext i1 [[B:%.*]] to i64 ; CHECK-NEXT: [[TMP2:%.*]] = zext i32 [[A:%.*]] to i64 ; CHECK-NEXT: [[TMP3:%.*]] = shl nuw i64 [[TMP1]], 32 ; CHECK-NEXT: [[TMP4:%.*]] = or i64 [[TMP2]], [[TMP3]] ; CHECK-NEXT: [[TMP5:%.*]] = and i64 [[TMP4]], 4294967296 ; CHECK-NEXT: ret i64 [[TMP5]] ; %tmp1 = zext i1 %b to i64 %tmp2 = zext i32 %a to i64 %tmp3 = shl nuw i64 %tmp1, 32 %tmp4 = or i64 %tmp2, %tmp3 %tmp5 = and i64 %tmp4, 4294967296 ret i64 %tmp5 } ; concatinate two 32-bit integers and extract lower 32-bit define i64 @shl_or_and3(i32 %a, i32 %b) { ; CHECK-LABEL: @shl_or_and3( ; CHECK-NEXT: [[TMP1:%.*]] = zext i32 [[A:%.*]] to i64 ; CHECK-NEXT: [[TMP2:%.*]] = zext i32 [[B:%.*]] to i64 ; CHECK-NEXT: [[TMP3:%.*]] = shl nuw i64 [[TMP1]], 32 ; CHECK-NEXT: [[TMP4:%.*]] = or i64 [[TMP2]], [[TMP3]] ; CHECK-NEXT: [[TMP5:%.*]] = and i64 [[TMP4]], 4294967295 ; CHECK-NEXT: ret i64 [[TMP5]] ; %tmp1 = zext i32 %a to i64 %tmp2 = zext i32 %b to i64 %tmp3 = shl nuw i64 %tmp1, 32 %tmp4 = or i64 %tmp2, %tmp3 %tmp5 = and i64 %tmp4, 4294967295 ret i64 %tmp5 } ; concatinate two 16-bit integers and extract higher 16-bit define i32 @shl_or_and4(i16 %a, i16 %b) { ; CHECK-LABEL: @shl_or_and4( ; CHECK-NEXT: [[TMP1:%.*]] = zext i16 [[A:%.*]] to i32 ; CHECK-NEXT: [[TMP2:%.*]] = zext i16 [[B:%.*]] to i32 ; CHECK-NEXT: [[TMP3:%.*]] = shl nuw i32 [[TMP1]], 16 ; CHECK-NEXT: [[TMP4:%.*]] = or i32 [[TMP2]], [[TMP3]] ; CHECK-NEXT: [[TMP5:%.*]] = and i32 [[TMP4]], -65536 ; CHECK-NEXT: ret i32 [[TMP5]] ; %tmp1 = zext i16 %a to i32 %tmp2 = zext i16 %b to i32 %tmp3 = shl nuw i32 %tmp1, 16 %tmp4 = or i32 %tmp2, %tmp3 %tmp5 = and i32 %tmp4, 4294901760 ; mask with 0xFFFF0000 ret i32 %tmp5 } define i128 @shl_or_and5(i64 %a, i1 %b) { ; CHECK-LABEL: @shl_or_and5( ; CHECK-NEXT: [[TMP1:%.*]] = zext i64 [[A:%.*]] to i128 ; CHECK-NEXT: [[TMP2:%.*]] = zext i1 [[B:%.*]] to i128 ; CHECK-NEXT: [[TMP3:%.*]] = shl nuw i128 [[TMP1]], 64 ; CHECK-NEXT: [[TMP4:%.*]] = or i128 [[TMP2]], [[TMP3]] ; CHECK-NEXT: [[TMP5:%.*]] = and i128 [[TMP4]], 1 ; CHECK-NEXT: ret i128 [[TMP5]] ; %tmp1 = zext i64 %a to i128 %tmp2 = zext i1 %b to i128 %tmp3 = shl nuw i128 %tmp1, 64 %tmp4 = or i128 %tmp2, %tmp3 %tmp5 = and i128 %tmp4, 1 ret i128 %tmp5 } ; A variation of above test cases; it fails due to the mask value define i32 @shl_or_and6(i16 %a, i16 %b) { ; CHECK-LABEL: @shl_or_and6( ; CHECK-NEXT: [[TMP1:%.*]] = zext i16 [[A:%.*]] to i32 ; CHECK-NEXT: [[TMP2:%.*]] = zext i16 [[B:%.*]] to i32 ; CHECK-NEXT: [[TMP3:%.*]] = shl nuw i32 [[TMP1]], 16 ; CHECK-NEXT: [[TMP4:%.*]] = or i32 [[TMP2]], [[TMP3]] ; CHECK-NEXT: [[TMP5:%.*]] = and i32 [[TMP4]], -65535 ; CHECK-NEXT: ret i32 [[TMP5]] ; %tmp1 = zext i16 %a to i32 %tmp2 = zext i16 %b to i32 %tmp3 = shl nuw i32 %tmp1, 16 %tmp4 = or i32 %tmp2, %tmp3 %tmp5 = and i32 %tmp4, 4294901761 ; mask with 0xFFFF0001 ret i32 %tmp5 } ; A variation of above test cases; it fails due to the mask value define i32 @shl_or_and7(i16 %a, i16 %b) { ; CHECK-LABEL: @shl_or_and7( ; CHECK-NEXT: [[TMP1:%.*]] = zext i16 [[A:%.*]] to i32 ; CHECK-NEXT: [[TMP2:%.*]] = zext i16 [[B:%.*]] to i32 ; CHECK-NEXT: [[TMP3:%.*]] = shl nuw i32 [[TMP1]], 16 ; CHECK-NEXT: [[TMP4:%.*]] = or i32 [[TMP2]], [[TMP3]] ; CHECK-NEXT: [[TMP5:%.*]] = and i32 [[TMP4]], -131072 ; CHECK-NEXT: ret i32 [[TMP5]] ; %tmp1 = zext i16 %a to i32 %tmp2 = zext i16 %b to i32 %tmp3 = shl nuw i32 %tmp1, 16 %tmp4 = or i32 %tmp2, %tmp3 %tmp5 = and i32 %tmp4, 4294836224 ; mask with 0xFFFE0000 ret i32 %tmp5 } ; A variation of above test cases; it fails due to the mask value define i32 @shl_or_and8(i16 %a, i16 %b) { ; CHECK-LABEL: @shl_or_and8( ; CHECK-NEXT: [[TMP1:%.*]] = zext i16 [[A:%.*]] to i32 ; CHECK-NEXT: [[TMP2:%.*]] = zext i16 [[B:%.*]] to i32 ; CHECK-NEXT: [[TMP3:%.*]] = shl nuw i32 [[TMP1]], 16 ; CHECK-NEXT: [[TMP4:%.*]] = or i32 [[TMP2]], [[TMP3]] ; CHECK-NEXT: [[TMP5:%.*]] = and i32 [[TMP4]], 131071 ; CHECK-NEXT: ret i32 [[TMP5]] ; %tmp1 = zext i16 %a to i32 %tmp2 = zext i16 %b to i32 %tmp3 = shl nuw i32 %tmp1, 16 %tmp4 = or i32 %tmp2, %tmp3 %tmp5 = and i32 %tmp4, 131071 ; mask with 0x1FFFF ret i32 %tmp5 } define <2 x i64> @shl_or_and1v(<2 x i32> %a, <2 x i1> %b) { ; CHECK-LABEL: @shl_or_and1v( ; CHECK-NEXT: [[TMP1:%.*]] = zext <2 x i32> [[A:%.*]] to <2 x i64> ; CHECK-NEXT: [[TMP2:%.*]] = zext <2 x i1> [[B:%.*]] to <2 x i64> ; CHECK-NEXT: [[TMP3:%.*]] = shl nuw <2 x i64> [[TMP1]], ; CHECK-NEXT: [[TMP4:%.*]] = or <2 x i64> [[TMP3]], [[TMP2]] ; CHECK-NEXT: [[TMP5:%.*]] = and <2 x i64> [[TMP4]], ; CHECK-NEXT: ret <2 x i64> [[TMP5]] ; %tmp1 = zext <2 x i32> %a to <2 x i64> %tmp2 = zext <2 x i1> %b to <2 x i64> %tmp3 = shl nuw <2 x i64> %tmp1, %tmp4 = or <2 x i64> %tmp3, %tmp2 %tmp5 = and <2 x i64> %tmp4, ret <2 x i64> %tmp5 } define <2 x i64> @shl_or_and2v(<2 x i32> %a, <2 x i1> %b) { ; CHECK-LABEL: @shl_or_and2v( ; CHECK-NEXT: [[TMP1:%.*]] = zext <2 x i1> [[B:%.*]] to <2 x i64> ; CHECK-NEXT: [[TMP2:%.*]] = zext <2 x i32> [[A:%.*]] to <2 x i64> ; CHECK-NEXT: [[TMP3:%.*]] = shl nuw <2 x i64> [[TMP1]], ; CHECK-NEXT: [[TMP4:%.*]] = or <2 x i64> [[TMP2]], [[TMP3]] ; CHECK-NEXT: [[TMP5:%.*]] = and <2 x i64> [[TMP4]], ; CHECK-NEXT: ret <2 x i64> [[TMP5]] ; %tmp1 = zext <2 x i1> %b to <2 x i64> %tmp2 = zext <2 x i32> %a to <2 x i64> %tmp3 = shl nuw <2 x i64> %tmp1, %tmp4 = or <2 x i64> %tmp2, %tmp3 %tmp5 = and <2 x i64> %tmp4, ret <2 x i64> %tmp5 } define <2 x i32> @shl_or_and3v(<2 x i16> %a, <2 x i16> %b) { ; A variation of above test case, but fails due to the mask value ; CHECK-LABEL: @shl_or_and3v( ; CHECK-NEXT: [[TMP1:%.*]] = zext <2 x i16> [[A:%.*]] to <2 x i32> ; CHECK-NEXT: [[TMP2:%.*]] = zext <2 x i16> [[B:%.*]] to <2 x i32> ; CHECK-NEXT: [[TMP3:%.*]] = shl nuw <2 x i32> [[TMP1]], ; CHECK-NEXT: [[TMP4:%.*]] = or <2 x i32> [[TMP2]], [[TMP3]] ; CHECK-NEXT: [[TMP5:%.*]] = and <2 x i32> [[TMP4]], ; CHECK-NEXT: ret <2 x i32> [[TMP5]] ; %tmp1 = zext <2 x i16> %a to <2 x i32> %tmp2 = zext <2 x i16> %b to <2 x i32> %tmp3 = shl nuw <2 x i32> %tmp1, %tmp4 = or <2 x i32> %tmp2, %tmp3 %tmp5 = and <2 x i32> %tmp4, ; mask with 0xFFFF0001 ret <2 x i32> %tmp5 }