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; This test makes sure that or instructions are properly eliminated.
; This test is for Integer BitWidth > 64 && BitWidth <= 1024.
;
; RUN: opt < %s -instcombine -S | not grep or
define i777 @test0(i777 %X) {
%Y = or i777 %X, 0
ret i777 %Y
}
define i117 @test1(i117 %X) {
%Y = or i117 %X, -1
ret i117 %Y
}
define i1023 @test2(i1023 %A) {
;; A | ~A == -1
%NotA = xor i1023 -1, %A
%B = or i1023 %A, %NotA
ret i1023 %B
}
define i399 @test3(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
}
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