[flang-commits] [flang] [flang] use TBAA Forest in TBAABuilder (PR #68437)

[Slava Zakharin via flang-commits]

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@@ -39,26 +49,10 @@ static llvm::cl::opt<unsigned>
 namespace fir {
 
 TBAABuilder::TBAABuilder(MLIRContext *context, bool applyTBAA)
-    : enableTBAA(applyTBAA && !disableTBAA) {
+    : enableTBAA(applyTBAA && !disableTBAA),
+      trees(/*separatePerFunction=*/perFunctionTBAATrees) {
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vzakhari wrote:

Do I understand it correctly that even without running the FIR TBAA attachment pass we will use per-function trees by default after this change?  I wonder if we can still stick to a single global tree for those functions that have not been affected by the FIR TBAA attachment pass?

https://github.com/llvm/llvm-project/pull/68437