Bruno De Fraine c3b8a15eab [CodeGen] Add TBAA struct path info for array members (#137719) ...

This enables the LLVM optimizer to view accesses to distinct struct
members as independent, also for array members. For example, the
following two stores no longer alias:

    struct S { int a[10]; int b; };
    void test(S *p, int i) {
      p->a[i] = ...;
      p->b = ...;
    }

Array members were already added to TBAA struct type nodes in commit
57493e29. Here, we extend a path tag for an array subscript expression.

2025-06-05 13:37:18 +02:00

27 KiB

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