[llvm] InstCombine: improve optimizations for ceiling division with no overflow (PR #142869)

[via llvm-commits]

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@@ -4273,4 +4273,161 @@ define i32 @fold_zext_nneg_add_const_fail2(i8 %x) {
 }
 
 declare void @llvm.assume(i1)
+declare i32 @llvm.ctlz.i32(i32, i1)
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gaynor-anthropic wrote:

done

https://github.com/llvm/llvm-project/pull/142869