[llvm] [SCEV] Propagate a recurrence's nuw flag to its exit value. (PR #217378)

[Nikita Popov via llvm-commits]

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@@ -687,6 +687,22 @@ define i64 @ptrtoint_signbits(i1 %c) {
 ; CHECK-NEXT:    %a = ptrtoint ptr %p to i64
 ; CHECK-NEXT:    --> %a U: full-set S: full-set
 ; CHECK-NEXT:  Determining loop execution counts for: @ptrtoint_signbits
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nikic wrote:

Might want to fix this test separately. Looks like it has some CHECK lines, but there is no actual CHECK prefix (there is ALL).

https://github.com/llvm/llvm-project/pull/217378