[llvm] [InstCombine] Add ctpop(A | B) + ctpop(A & B) -> ctpop(A) + ctpop(B) (PR #79089)

[Yingwei Zheng via llvm-commits]

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@@ -264,6 +264,21 @@ define <2 x i32> @ctpop_add_no_common_bits_vec_use2(<2 x i32> %a, <2 x i32> %b,
   ret <2 x i32> %res
 }
 
+define i32 @ctpop_and_or_combine(i32 %a, i32 %b) {
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dtcxzyw wrote:

Please add some negative tests.


https://github.com/llvm/llvm-project/pull/79089