[PATCH] D31120: [InstCombine] Teach SimplifyDemandedUseBits that adding or subtractings 0s from every bit below the highest demanded bit can be simplified

[Sanjay Patel via Phabricator via llvm-commits]

spatel added inline comments.


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Comment at: test/Transforms/InstCombine/and2.ll:125
 
 ; The add in this test is unnecessary because the LSBs of the RHS are 0 and we only consume those bits.
 define i32 @test11(i32 %a, i32 %b) {
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This comment (copy/pasted below too) confused me. Shouldn't it be:
"The add in this test is unnecessary because the LSBs of the RHS are 0 and we do not consume those bits."


https://reviews.llvm.org/D31120