[llvm] [AArch64] Lower alias mask to a whilewr (PR #100769)

[David Green via llvm-commits]

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@@ -94,6 +94,7 @@
 #include <bitset>
 #include <cassert>
 #include <cctype>
+#include <cmath>
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davemgreen wrote:

What is this needed for?

https://github.com/llvm/llvm-project/pull/100769