[llvm] [InferAlignment] Misc. refactoring (NFC) (PR #112699)

[Nikita Popov via llvm-commits]

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@@ -22,31 +23,47 @@
 
 using namespace llvm;
 
+DenseMap<Value *, Value *> ValueToBasePtr;
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nikic wrote:

You can't use globals this way in LLVM, it's not thread safe and will mix data across functions.

https://github.com/llvm/llvm-project/pull/112699