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150
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1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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252
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2 ; RUN: opt < %s -passes=reassociate,dce -S | FileCheck %s
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150
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3
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4 ; (A&B)&~A == 0
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5 define i32 @test1(i32 %a, i32 %b) {
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6 ; CHECK-LABEL: @test1(
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7 ; CHECK-NEXT: ret i32 0
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8 ;
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9 %t2 = and i32 %b, %a
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10 %t4 = xor i32 %a, -1
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11 %t5 = and i32 %t2, %t4
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12 ret i32 %t5
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13 }
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14
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15 define <2 x i32> @not_op_vec_undef(<2 x i32> %a, <2 x i32> %b) {
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16 ; CHECK-LABEL: @not_op_vec_undef(
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17 ; CHECK-NEXT: ret <2 x i32> zeroinitializer
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18 ;
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19 %t2 = and <2 x i32> %b, %a
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20 %t4 = xor <2 x i32> %a, <i32 -1, i32 undef>
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21 %t5 = and <2 x i32> %t2, %t4
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22 ret <2 x i32> %t5
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23 }
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24
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25 ; A&~A == 0
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26 define i32 @test2(i32 %a, i32 %b) {
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27 ; CHECK-LABEL: @test2(
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28 ; CHECK-NEXT: ret i32 0
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29 ;
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30 %t1 = and i32 %a, 1234
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31 %t2 = and i32 %b, %t1
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32 %t4 = xor i32 %a, -1
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33 %t5 = and i32 %t2, %t4
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34 ret i32 %t5
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35 }
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36
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37 ; (b+(a+1234))+-a -> b+1234
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38 define i32 @test3(i32 %b, i32 %a) {
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39 ; CHECK-LABEL: @test3(
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40 ; CHECK-NEXT: [[T5:%.*]] = add i32 [[B:%.*]], 1234
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41 ; CHECK-NEXT: ret i32 [[T5]]
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42 ;
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43 %t1 = add i32 %a, 1234
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44 %t2 = add i32 %b, %t1
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45 %t4 = sub i32 0, %a
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46 %t5 = add i32 %t2, %t4
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47 ret i32 %t5
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48 }
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49
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50 ; (b+(a+1234))+~a -> b+1233
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51 define i32 @test4(i32 %b, i32 %a) {
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52 ; CHECK-LABEL: @test4(
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53 ; CHECK-NEXT: [[T5:%.*]] = add i32 [[B:%.*]], 1233
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54 ; CHECK-NEXT: ret i32 [[T5]]
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55 ;
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56 %t1 = add i32 %a, 1234
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57 %t2 = add i32 %b, %t1
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58 %t4 = xor i32 %a, -1
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59 %t5 = add i32 %t2, %t4
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60 ret i32 %t5
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61 }
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62
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