[llvm] [Asan] Teach FunctionStackPoisoner to filter out struct type with scalable vector type. (PR #93406)

[Philip Reames via llvm-commits]

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@@ -1139,8 +1139,16 @@ struct FunctionStackPoisoner : public InstVisitor<FunctionStackPoisoner> {
   /// Collect Alloca instructions we want (and can) handle.
   void visitAllocaInst(AllocaInst &AI) {
     // FIXME: Handle scalable vectors instead of ignoring them.
+    auto IsScalableVecTy = [](const Type *Ty) {
+      if (const auto *STy = dyn_cast<StructType>(Ty))
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preames wrote:

See containsHomogeneousScalableVectorTypes on StructType.

https://github.com/llvm/llvm-project/pull/93406