; RUN: opt < %s -instsimplify -S | FileCheck %s ; Test the case where integer BitWidth <= 64 && BitWidth % 2 != 0. define i39 @test1(i39 %V, i39 %M) { ;; If we have: ((V + N) & C1) | (V & C2) ;; .. and C2 = ~C1 and C2 is 0+1+ and (N & C2) == 0 ;; replace with V+N. %C1 = xor i39 274877906943, -1 ;; C2 = 274877906943 %N = and i39 %M, 274877906944 %A = add i39 %V, %N %B = and i39 %A, %C1 %D = and i39 %V, 274877906943 %R = or i39 %B, %D ret i39 %R ; CHECK-LABEL: @test1 ; CHECK-NEXT: and {{.*}}, -274877906944 ; CHECK-NEXT: add ; CHECK-NEXT: ret } define i7 @test2(i7 %X) { %Y = or i7 %X, 0 ret i7 %Y ; CHECK-LABEL: @test2 ; CHECK-NEXT: ret i7 %X } define i17 @test3(i17 %X) { %Y = or i17 %X, -1 ret i17 %Y ; CHECK-LABEL: @test3 ; CHECK-NEXT: ret i17 -1 } ; Test the case where Integer BitWidth > 64 && BitWidth <= 1024. define i399 @test4(i399 %V, i399 %M) { ;; If we have: ((V + N) & C1) | (V & C2) ;; .. and C2 = ~C1 and C2 is 0+1+ and (N & C2) == 0 ;; replace with V+N. %C1 = xor i399 274877906943, -1 ;; C2 = 274877906943 %N = and i399 %M, 18446742974197923840 %A = add i399 %V, %N %B = and i399 %A, %C1 %D = and i399 %V, 274877906943 %R = or i399 %B, %D ret i399 %R ; CHECK-LABEL: @test4 ; CHECK-NEXT: and {{.*}}, 18446742974197923840 ; CHECK-NEXT: add ; CHECK-NEXT: ret } define i777 @test5(i777 %X) { %Y = or i777 %X, 0 ret i777 %Y ; CHECK-LABEL: @test5 ; CHECK-NEXT: ret i777 %X } define i117 @test6(i117 %X) { %Y = or i117 %X, -1 ret i117 %Y ; CHECK-LABEL: @test6 ; CHECK-NEXT: ret i117 -1 }