[flang-commits] [flang] [flang] Add ability to have special allocator for descriptor data (PR #100690)

[Peter Klausler via flang-commits]

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@@ -92,8 +92,8 @@ class Dimension {
 // The storage for this object follows the last used dim[] entry in a
 // Descriptor (CFI_cdesc_t) generic descriptor.  Space matters here, since
 // descriptors serve as POINTER and ALLOCATABLE components of derived type
-// instances.  The presence of this structure is implied by the flag
-// CFI_cdesc_t.f18Addendum, and the number of elements in the len_[]
+// instances.  The presence of this structure is implied by the lsb of
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klausler wrote:

The encoding should be abstracted.  It's not important which bit is used, or even that it is a single bit.

https://github.com/llvm/llvm-project/pull/100690