; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt < %s -reassociate -dce -S | FileCheck %s ; (A&B)&~A == 0 define i32 @test1(i32 %a, i32 %b) { ; CHECK-LABEL: @test1( ; CHECK-NEXT: ret i32 0 ; %t2 = and i32 %b, %a %t4 = xor i32 %a, -1 %t5 = and i32 %t2, %t4 ret i32 %t5 } define <2 x i32> @not_op_vec_undef(<2 x i32> %a, <2 x i32> %b) { ; CHECK-LABEL: @not_op_vec_undef( ; CHECK-NEXT: ret <2 x i32> zeroinitializer ; %t2 = and <2 x i32> %b, %a %t4 = xor <2 x i32> %a, %t5 = and <2 x i32> %t2, %t4 ret <2 x i32> %t5 } ; A&~A == 0 define i32 @test2(i32 %a, i32 %b) { ; CHECK-LABEL: @test2( ; CHECK-NEXT: ret i32 0 ; %t1 = and i32 %a, 1234 %t2 = and i32 %b, %t1 %t4 = xor i32 %a, -1 %t5 = and i32 %t2, %t4 ret i32 %t5 } ; (b+(a+1234))+-a -> b+1234 define i32 @test3(i32 %b, i32 %a) { ; CHECK-LABEL: @test3( ; CHECK-NEXT: [[T5:%.*]] = add i32 [[B:%.*]], 1234 ; CHECK-NEXT: ret i32 [[T5]] ; %t1 = add i32 %a, 1234 %t2 = add i32 %b, %t1 %t4 = sub i32 0, %a %t5 = add i32 %t2, %t4 ret i32 %t5 } ; (b+(a+1234))+~a -> b+1233 define i32 @test4(i32 %b, i32 %a) { ; CHECK-LABEL: @test4( ; CHECK-NEXT: [[T5:%.*]] = add i32 [[B:%.*]], 1233 ; CHECK-NEXT: ret i32 [[T5]] ; %t1 = add i32 %a, 1234 %t2 = add i32 %b, %t1 %t4 = xor i32 %a, -1 %t5 = add i32 %t2, %t4 ret i32 %t5 }