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; This test makes sure that add instructions are properly eliminated.
; This test is for Integer BitWidth <= 64 && BitWidth % 8 != 0.
; RUN: opt < %s -instcombine -S | \
; RUN: grep -v OK | not grep add
define i1 @test1(i1 %x) {
%tmp.2 = xor i1 %x, 1
;; Add of sign bit -> xor of sign bit.
%tmp.4 = add i1 %tmp.2, 1
ret i1 %tmp.4
}
define i47 @test2(i47 %x) {
%tmp.2 = xor i47 %x, 70368744177664
;; Add of sign bit -> xor of sign bit.
%tmp.4 = add i47 %tmp.2, 70368744177664
ret i47 %tmp.4
}
define i15 @test3(i15 %x) {
%tmp.2 = xor i15 %x, 16384
;; Add of sign bit -> xor of sign bit.
%tmp.4 = add i15 %tmp.2, 16384
ret i15 %tmp.4
}
define i49 @test6(i49 %x) {
;; (x & 254)+1 -> (x & 254)|1
%tmp.2 = and i49 %x, 562949953421310
%tmp.4 = add i49 %tmp.2, 1
ret i49 %tmp.4
}
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