1 ; RUN: opt < %s -instsimplify -S | FileCheck %s 2 3 ; Test the case where integer BitWidth <= 64 && BitWidth % 2 != 0. 4 define i39 @test1(i39 %V, i39 %M) { 5 ;; If we have: ((V + N) & C1) | (V & C2) 6 ;; .. and C2 = ~C1 and C2 is 0+1+ and (N & C2) == 0 7 ;; replace with V+N. 8 %C1 = xor i39 274877906943, -1 ;; C2 = 274877906943 9 %N = and i39 %M, 274877906944 10 %A = add i39 %V, %N 11 %B = and i39 %A, %C1 12 %D = and i39 %V, 274877906943 13 %R = or i39 %B, %D 14 ret i39 %R 15 ; CHECK-LABEL: @test1 16 ; CHECK-NEXT: and {{.*}}, -274877906944 17 ; CHECK-NEXT: add 18 ; CHECK-NEXT: ret 19 } 20 21 define i7 @test2(i7 %X) { 22 %Y = or i7 %X, 0 23 ret i7 %Y 24 ; CHECK-LABEL: @test2 25 ; CHECK-NEXT: ret i7 %X 26 } 27 28 define i17 @test3(i17 %X) { 29 %Y = or i17 %X, -1 30 ret i17 %Y 31 ; CHECK-LABEL: @test3 32 ; CHECK-NEXT: ret i17 -1 33 } 34 35 ; Test the case where Integer BitWidth > 64 && BitWidth <= 1024. 36 define i399 @test4(i399 %V, i399 %M) { 37 ;; If we have: ((V + N) & C1) | (V & C2) 38 ;; .. and C2 = ~C1 and C2 is 0+1+ and (N & C2) == 0 39 ;; replace with V+N. 40 %C1 = xor i399 274877906943, -1 ;; C2 = 274877906943 41 %N = and i399 %M, 18446742974197923840 42 %A = add i399 %V, %N 43 %B = and i399 %A, %C1 44 %D = and i399 %V, 274877906943 45 %R = or i399 %B, %D 46 ret i399 %R 47 ; CHECK-LABEL: @test4 48 ; CHECK-NEXT: and {{.*}}, 18446742974197923840 49 ; CHECK-NEXT: add 50 ; CHECK-NEXT: ret 51 } 52 53 define i777 @test5(i777 %X) { 54 %Y = or i777 %X, 0 55 ret i777 %Y 56 ; CHECK-LABEL: @test5 57 ; CHECK-NEXT: ret i777 %X 58 } 59 60 define i117 @test6(i117 %X) { 61 %Y = or i117 %X, -1 62 ret i117 %Y 63 ; CHECK-LABEL: @test6 64 ; CHECK-NEXT: ret i117 -1 65 } 66
