; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -instcombine -S < %s | FileCheck %s declare void @use(i32) define i32 @sub_to_and(i32 %x, i32 %y) { ; CHECK-LABEL: @sub_to_and( ; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[X:%.*]], [[Y:%.*]] ; CHECK-NEXT: [[SUB:%.*]] = sub i32 0, [[TMP1]] ; CHECK-NEXT: ret i32 [[SUB]] ; %or = or i32 %x, %y %xor = xor i32 %x, %y %sub = sub i32 %xor, %or ret i32 %sub } define i32 @sub_to_and_extra_use_sub(i32 %x, i32 %y) { ; CHECK-LABEL: @sub_to_and_extra_use_sub( ; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[X:%.*]], [[Y:%.*]] ; CHECK-NEXT: [[SUB:%.*]] = sub i32 0, [[TMP1]] ; CHECK-NEXT: call void @use(i32 [[SUB]]) ; CHECK-NEXT: ret i32 [[SUB]] ; %or = or i32 %x, %y %xor = xor i32 %x, %y %sub = sub i32 %xor, %or call void @use(i32 %sub) ret i32 %sub } define i32 @sub_to_and_extra_use_and(i32 %x, i32 %y) { ; CHECK-LABEL: @sub_to_and_extra_use_and( ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[X:%.*]], [[Y:%.*]] ; CHECK-NEXT: call void @use(i32 [[XOR]]) ; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[X]], [[Y]] ; CHECK-NEXT: [[SUB:%.*]] = sub i32 0, [[TMP1]] ; CHECK-NEXT: ret i32 [[SUB]] ; %or = or i32 %x, %y %xor = xor i32 %x, %y call void @use(i32 %xor) %sub = sub i32 %xor, %or ret i32 %sub } define i32 @sub_to_and_extra_use_or(i32 %x, i32 %y) { ; CHECK-LABEL: @sub_to_and_extra_use_or( ; CHECK-NEXT: [[OR:%.*]] = or i32 [[X:%.*]], [[Y:%.*]] ; CHECK-NEXT: call void @use(i32 [[OR]]) ; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[X]], [[Y]] ; CHECK-NEXT: [[SUB:%.*]] = sub i32 0, [[TMP1]] ; CHECK-NEXT: ret i32 [[SUB]] ; %or = or i32 %x, %y call void @use(i32 %or) %xor = xor i32 %x, %y %sub = sub i32 %xor, %or ret i32 %sub } define i32 @sub_to_and_or_commuted(i32 %x, i32 %y) { ; CHECK-LABEL: @sub_to_and_or_commuted( ; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[X:%.*]], [[Y:%.*]] ; CHECK-NEXT: [[SUB:%.*]] = sub i32 0, [[TMP1]] ; CHECK-NEXT: ret i32 [[SUB]] ; %or = or i32 %y, %x %xor = xor i32 %x, %y %sub = sub i32 %xor, %or ret i32 %sub } define i32 @sub_to_and_and_commuted(i32 %x, i32 %y) { ; CHECK-LABEL: @sub_to_and_and_commuted( ; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[Y:%.*]], [[X:%.*]] ; CHECK-NEXT: [[SUB:%.*]] = sub i32 0, [[TMP1]] ; CHECK-NEXT: ret i32 [[SUB]] ; %or = or i32 %x, %y %xor = xor i32 %y, %x %sub = sub i32 %xor, %or ret i32 %sub } define <2 x i32> @sub_to_and_vec(<2 x i32> %x, <2 x i32> %y) { ; CHECK-LABEL: @sub_to_and_vec( ; CHECK-NEXT: [[TMP1:%.*]] = and <2 x i32> [[Y:%.*]], [[X:%.*]] ; CHECK-NEXT: [[SUB:%.*]] = sub <2 x i32> zeroinitializer, [[TMP1]] ; CHECK-NEXT: ret <2 x i32> [[SUB]] ; %or = or <2 x i32> %x, %y %xor = xor <2 x i32> %y, %x %sub = sub <2 x i32> %xor, %or ret <2 x i32> %sub } ; Negative tests define i32 @sub_to_and_extra_use_and_or(i32 %x, i32 %y) { ; CHECK-LABEL: @sub_to_and_extra_use_and_or( ; CHECK-NEXT: [[OR:%.*]] = or i32 [[X:%.*]], [[Y:%.*]] ; CHECK-NEXT: call void @use(i32 [[OR]]) ; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[X]], [[Y]] ; CHECK-NEXT: call void @use(i32 [[XOR]]) ; CHECK-NEXT: [[SUB:%.*]] = sub i32 [[XOR]], [[OR]] ; CHECK-NEXT: ret i32 [[SUB]] ; %or = or i32 %x, %y call void @use(i32 %or) %xor = xor i32 %x, %y call void @use(i32 %xor) %sub = sub i32 %xor, %or ret i32 %sub }