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2016 Nov 07
5
should we have IR intrinsics for integer min/max?
Hi - The answer to this question may help to resolve larger questions about intrinsics and vectorization that were discussed at the dev mtg last week, but let's start with the basics: Which, if any, of these is the canonical IR? ; ret = x < y ? 0 : x-y define i32 @max1(i32 %x, i32 %y) { %sub = sub nsw i32 %x, %y %cmp = icmp slt i32 %x, %y ; cmp is independent of sub %sel = select