; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt < %s -passes=instcombine -S | FileCheck %s declare void @use(i32) declare void @use_vec(<2 x i32>) define i32 @testAdd(i32 %X, i32 %Y) { ; CHECK-LABEL: @testAdd( ; CHECK-NEXT: [[T:%.*]] = add i32 [[X:%.*]], [[Y:%.*]] ; CHECK-NEXT: ret i32 [[T]] ; %t = add i32 %X, %Y %tl = bitcast i32 %t to i32 ret i32 %tl } define i32 @and_sext_to_sel(i32 %x, i1 %y) { ; CHECK-LABEL: @and_sext_to_sel( ; CHECK-NEXT: [[R:%.*]] = select i1 [[Y:%.*]], i32 [[X:%.*]], i32 0 ; CHECK-NEXT: ret i32 [[R]] ; %sext = sext i1 %y to i32 %r = and i32 %sext, %x ret i32 %r } define <2 x i32> @and_sext_to_sel_constant_vec(<2 x i1> %y) { ; CHECK-LABEL: @and_sext_to_sel_constant_vec( ; CHECK-NEXT: [[R:%.*]] = select <2 x i1> [[Y:%.*]], <2 x i32> , <2 x i32> zeroinitializer ; CHECK-NEXT: ret <2 x i32> [[R]] ; %sext = sext <2 x i1> %y to <2 x i32> %r = and <2 x i32> , %sext ret <2 x i32> %r } define <2 x i32> @and_sext_to_sel_swap(<2 x i32> %px, <2 x i1> %y) { ; CHECK-LABEL: @and_sext_to_sel_swap( ; CHECK-NEXT: [[X:%.*]] = mul <2 x i32> [[PX:%.*]], [[PX]] ; CHECK-NEXT: [[R:%.*]] = select <2 x i1> [[Y:%.*]], <2 x i32> [[X]], <2 x i32> zeroinitializer ; CHECK-NEXT: ret <2 x i32> [[R]] ; %x = mul <2 x i32> %px, %px ; thwart complexity-based canonicalization %sext = sext <2 x i1> %y to <2 x i32> %r = and <2 x i32> %x, %sext ret <2 x i32> %r } define i32 @and_sext_to_sel_multi_use(i32 %x, i1 %y) { ; CHECK-LABEL: @and_sext_to_sel_multi_use( ; CHECK-NEXT: [[SEXT:%.*]] = sext i1 [[Y:%.*]] to i32 ; CHECK-NEXT: call void @use(i32 [[SEXT]]) ; CHECK-NEXT: [[R:%.*]] = and i32 [[SEXT]], [[X:%.*]] ; CHECK-NEXT: ret i32 [[R]] ; %sext = sext i1 %y to i32 call void @use(i32 %sext) %r = and i32 %sext, %x ret i32 %r } define i32 @and_sext_to_sel_multi_use_constant_mask(i1 %y) { ; CHECK-LABEL: @and_sext_to_sel_multi_use_constant_mask( ; CHECK-NEXT: [[SEXT:%.*]] = sext i1 [[Y:%.*]] to i32 ; CHECK-NEXT: call void @use(i32 [[SEXT]]) ; CHECK-NEXT: [[R:%.*]] = select i1 [[Y]], i32 42, i32 0 ; CHECK-NEXT: ret i32 [[R]] ; %sext = sext i1 %y to i32 call void @use(i32 %sext) %r = and i32 %sext, 42 ret i32 %r } define <2 x i32> @and_not_sext_to_sel(<2 x i32> %x, <2 x i1> %y) { ; CHECK-LABEL: @and_not_sext_to_sel( ; CHECK-NEXT: [[SEXT:%.*]] = sext <2 x i1> [[Y:%.*]] to <2 x i32> ; CHECK-NEXT: call void @use_vec(<2 x i32> [[SEXT]]) ; CHECK-NEXT: [[R:%.*]] = select <2 x i1> [[Y]], <2 x i32> zeroinitializer, <2 x i32> [[X:%.*]] ; CHECK-NEXT: ret <2 x i32> [[R]] ; %sext = sext <2 x i1> %y to <2 x i32> call void @use_vec(<2 x i32> %sext) %not = xor <2 x i32> %sext, %r = and <2 x i32> %not, %x ret <2 x i32> %r } define i32 @and_not_sext_to_sel_commute(i32 %px, i1 %y) { ; CHECK-LABEL: @and_not_sext_to_sel_commute( ; CHECK-NEXT: [[X:%.*]] = mul i32 [[PX:%.*]], [[PX]] ; CHECK-NEXT: [[SEXT:%.*]] = sext i1 [[Y:%.*]] to i32 ; CHECK-NEXT: call void @use(i32 [[SEXT]]) ; CHECK-NEXT: [[NOT:%.*]] = xor i32 [[SEXT]], -1 ; CHECK-NEXT: call void @use(i32 [[NOT]]) ; CHECK-NEXT: [[R:%.*]] = select i1 [[Y]], i32 0, i32 [[X]] ; CHECK-NEXT: ret i32 [[R]] ; %x = mul i32 %px, %px ; thwart complexity-based canonicalization %sext = sext i1 %y to i32 call void @use(i32 %sext) %not = xor i32 %sext, -1 call void @use(i32 %not) %r = and i32 %x, %not ret i32 %r } ; negative test - must be 'not' define i32 @and_xor_sext_to_sel(i32 %x, i1 %y) { ; CHECK-LABEL: @and_xor_sext_to_sel( ; CHECK-NEXT: [[SEXT:%.*]] = sext i1 [[Y:%.*]] to i32 ; CHECK-NEXT: call void @use(i32 [[SEXT]]) ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[SEXT]], -2 ; CHECK-NEXT: [[R:%.*]] = and i32 [[XOR]], [[X:%.*]] ; CHECK-NEXT: ret i32 [[R]] ; %sext = sext i1 %y to i32 call void @use(i32 %sext) %xor = xor i32 %sext, -2 %r = and i32 %xor, %x ret i32 %r } ; negative test - must be 'sext' define i32 @and_not_zext_to_sel(i32 %x, i1 %y) { ; CHECK-LABEL: @and_not_zext_to_sel( ; CHECK-NEXT: [[ZEXT:%.*]] = zext i1 [[Y:%.*]] to i32 ; CHECK-NEXT: call void @use(i32 [[ZEXT]]) ; CHECK-NEXT: [[NOT:%.*]] = xor i32 [[ZEXT]], -1 ; CHECK-NEXT: [[R:%.*]] = and i32 [[NOT]], [[X:%.*]] ; CHECK-NEXT: ret i32 [[R]] ; %zext = zext i1 %y to i32 call void @use(i32 %zext) %not = xor i32 %zext, -1 %r = and i32 %not, %x ret i32 %r } define i32 @or_sext_to_sel(i32 %x, i1 %y) { ; CHECK-LABEL: @or_sext_to_sel( ; CHECK-NEXT: [[R:%.*]] = select i1 [[Y:%.*]], i32 -1, i32 [[X:%.*]] ; CHECK-NEXT: ret i32 [[R]] ; %sext = sext i1 %y to i32 %r = or i32 %sext, %x ret i32 %r } define <2 x i32> @or_sext_to_sel_constant_vec(<2 x i1> %y) { ; CHECK-LABEL: @or_sext_to_sel_constant_vec( ; CHECK-NEXT: [[R:%.*]] = select <2 x i1> [[Y:%.*]], <2 x i32> , <2 x i32> ; CHECK-NEXT: ret <2 x i32> [[R]] ; %sext = sext <2 x i1> %y to <2 x i32> %r = or <2 x i32> , %sext ret <2 x i32> %r } define <2 x i32> @or_sext_to_sel_swap(<2 x i32> %px, <2 x i1> %y) { ; CHECK-LABEL: @or_sext_to_sel_swap( ; CHECK-NEXT: [[X:%.*]] = mul <2 x i32> [[PX:%.*]], [[PX]] ; CHECK-NEXT: [[R:%.*]] = select <2 x i1> [[Y:%.*]], <2 x i32> , <2 x i32> [[X]] ; CHECK-NEXT: ret <2 x i32> [[R]] ; %x = mul <2 x i32> %px, %px ; thwart complexity-based canonicalization %sext = sext <2 x i1> %y to <2 x i32> %r = or <2 x i32> %x, %sext ret <2 x i32> %r } define i32 @or_sext_to_sel_multi_use(i32 %x, i1 %y) { ; CHECK-LABEL: @or_sext_to_sel_multi_use( ; CHECK-NEXT: [[SEXT:%.*]] = sext i1 [[Y:%.*]] to i32 ; CHECK-NEXT: call void @use(i32 [[SEXT]]) ; CHECK-NEXT: [[R:%.*]] = or i32 [[SEXT]], [[X:%.*]] ; CHECK-NEXT: ret i32 [[R]] ; %sext = sext i1 %y to i32 call void @use(i32 %sext) %r = or i32 %sext, %x ret i32 %r } define i32 @or_sext_to_sel_multi_use_constant_mask(i1 %y) { ; CHECK-LABEL: @or_sext_to_sel_multi_use_constant_mask( ; CHECK-NEXT: [[SEXT:%.*]] = sext i1 [[Y:%.*]] to i32 ; CHECK-NEXT: call void @use(i32 [[SEXT]]) ; CHECK-NEXT: [[R:%.*]] = select i1 [[Y]], i32 -1, i32 42 ; CHECK-NEXT: ret i32 [[R]] ; %sext = sext i1 %y to i32 call void @use(i32 %sext) %r = or i32 %sext, 42 ret i32 %r } define i32 @xor_sext_to_sel(i32 %x, i1 %y) { ; CHECK-LABEL: @xor_sext_to_sel( ; CHECK-NEXT: [[SEXT:%.*]] = sext i1 [[Y:%.*]] to i32 ; CHECK-NEXT: [[R:%.*]] = xor i32 [[SEXT]], [[X:%.*]] ; CHECK-NEXT: ret i32 [[R]] ; %sext = sext i1 %y to i32 %r = xor i32 %sext, %x ret i32 %r } define <2 x i32> @xor_sext_to_sel_constant_vec(<2 x i1> %y) { ; CHECK-LABEL: @xor_sext_to_sel_constant_vec( ; CHECK-NEXT: [[SEXT:%.*]] = sext <2 x i1> [[Y:%.*]] to <2 x i32> ; CHECK-NEXT: [[R:%.*]] = xor <2 x i32> [[SEXT]], ; CHECK-NEXT: ret <2 x i32> [[R]] ; %sext = sext <2 x i1> %y to <2 x i32> %r = xor <2 x i32> , %sext ret <2 x i32> %r } define <2 x i32> @xor_sext_to_sel_swap(<2 x i32> %px, <2 x i1> %y) { ; CHECK-LABEL: @xor_sext_to_sel_swap( ; CHECK-NEXT: [[X:%.*]] = mul <2 x i32> [[PX:%.*]], [[PX]] ; CHECK-NEXT: [[SEXT:%.*]] = sext <2 x i1> [[Y:%.*]] to <2 x i32> ; CHECK-NEXT: [[R:%.*]] = xor <2 x i32> [[X]], [[SEXT]] ; CHECK-NEXT: ret <2 x i32> [[R]] ; %x = mul <2 x i32> %px, %px ; thwart complexity-based canonicalization %sext = sext <2 x i1> %y to <2 x i32> %r = xor <2 x i32> %x, %sext ret <2 x i32> %r } define i32 @xor_sext_to_sel_multi_use(i32 %x, i1 %y) { ; CHECK-LABEL: @xor_sext_to_sel_multi_use( ; CHECK-NEXT: [[SEXT:%.*]] = sext i1 [[Y:%.*]] to i32 ; CHECK-NEXT: call void @use(i32 [[SEXT]]) ; CHECK-NEXT: [[R:%.*]] = xor i32 [[SEXT]], [[X:%.*]] ; CHECK-NEXT: ret i32 [[R]] ; %sext = sext i1 %y to i32 call void @use(i32 %sext) %r = xor i32 %sext, %x ret i32 %r } define i32 @xor_sext_to_sel_multi_use_constant_mask(i1 %y) { ; CHECK-LABEL: @xor_sext_to_sel_multi_use_constant_mask( ; CHECK-NEXT: [[SEXT:%.*]] = sext i1 [[Y:%.*]] to i32 ; CHECK-NEXT: call void @use(i32 [[SEXT]]) ; CHECK-NEXT: [[R:%.*]] = xor i32 [[SEXT]], 42 ; CHECK-NEXT: ret i32 [[R]] ; %sext = sext i1 %y to i32 call void @use(i32 %sext) %r = xor i32 %sext, 42 ret i32 %r } define i64 @PR63321(ptr %ptr, i64 %c) { ; CHECK-LABEL: @PR63321( ; CHECK-NEXT: [[VAL:%.*]] = load i8, ptr [[PTR:%.*]], align 1, !range [[RNG0:![0-9]+]] ; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i8 [[VAL]], 0 ; CHECK-NEXT: [[RES:%.*]] = select i1 [[TMP1]], i64 [[C:%.*]], i64 0 ; CHECK-NEXT: ret i64 [[RES]] ; %val = load i8, ptr %ptr, align 1, !range !{i8 0, i8 2} %rhs = zext i8 %val to i64 %mask = add i64 -1, %rhs %res = and i64 %mask, %c ret i64 %res } ; Negative test of PR63321 define i64 @and_add_non_bool(ptr %ptr, i64 %c) { ; CHECK-LABEL: @and_add_non_bool( ; CHECK-NEXT: [[VAL:%.*]] = load i8, ptr [[PTR:%.*]], align 1, !range [[RNG1:![0-9]+]] ; CHECK-NEXT: [[RHS:%.*]] = zext nneg i8 [[VAL]] to i64 ; CHECK-NEXT: [[MASK:%.*]] = add nsw i64 [[RHS]], -1 ; CHECK-NEXT: [[RES:%.*]] = and i64 [[MASK]], [[C:%.*]] ; CHECK-NEXT: ret i64 [[RES]] ; %val = load i8, ptr %ptr, align 1, !range !{i8 0, i8 3} %rhs = zext i8 %val to i64 %mask = add i64 -1, %rhs %res = and i64 %mask, %c ret i64 %res } define i32 @and_add_bool_to_select(i1 %x, i32 %y) { ; CHECK-LABEL: @and_add_bool_to_select( ; CHECK-NEXT: [[RES:%.*]] = select i1 [[X:%.*]], i32 0, i32 [[Y:%.*]] ; CHECK-NEXT: ret i32 [[RES]] ; %val = zext i1 %x to i32 %mask = add i32 -1, %val %res = and i32 %mask, %y ret i32 %res } define i32 @and_add_bool_no_fold(i32 %y) { ; CHECK-LABEL: @and_add_bool_no_fold( ; CHECK-NEXT: [[X:%.*]] = and i32 [[Y:%.*]], 1 ; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i32 [[X]], 0 ; CHECK-NEXT: [[RES:%.*]] = select i1 [[TMP1]], i32 [[Y]], i32 0 ; CHECK-NEXT: ret i32 [[RES]] ; %x = and i32 %y, 1 %mask = add i32 -1, %x %res = and i32 %mask, %y ret i32 %res } define <2 x i32> @and_add_bool_vec_to_select(<2 x i1> %x, <2 x i32> %y) { ; CHECK-LABEL: @and_add_bool_vec_to_select( ; CHECK-NEXT: [[RES:%.*]] = select <2 x i1> [[X:%.*]], <2 x i32> zeroinitializer, <2 x i32> [[Y:%.*]] ; CHECK-NEXT: ret <2 x i32> [[RES]] ; %val = zext <2 x i1> %x to <2 x i32> %mask = add <2 x i32> , %val %res = and <2 x i32> %mask, %y ret <2 x i32> %res } ; Negative test of and_add_bool_to_select define i32 @and_add_bool_to_select_multi_use(i1 %x, i32 %y) { ; CHECK-LABEL: @and_add_bool_to_select_multi_use( ; CHECK-NEXT: [[NOT_X:%.*]] = xor i1 [[X:%.*]], true ; CHECK-NEXT: [[MASK:%.*]] = sext i1 [[NOT_X]] to i32 ; CHECK-NEXT: [[RES:%.*]] = and i32 [[MASK]], [[Y:%.*]] ; CHECK-NEXT: [[RET:%.*]] = add i32 [[RES]], [[MASK]] ; CHECK-NEXT: ret i32 [[RET]] ; %val = zext i1 %x to i32 %mask = add i32 -1, %val %res = and i32 %mask, %y %ret = add i32 %res, %mask ret i32 %ret }