[flang][runtime] Handle ALLOCATE(..., short SOURCE=) #155715
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Ensure that blank padding takes place when a fixed-length character allocatable is allocated with a short SOURCE= specifier. While here, clean up DoFromSourceAssign() so that it uses a temporary descriptor on the stack rather than allocating one from the heap. Fixes llvm#155703.
| for (std::size_t n{alloc.InlineElements()}; n-- > 0; | ||
| alloc.IncrementSubscripts(allocAt)) { | ||
| Descriptor allocElement{*Descriptor::Create(*allocDerived, | ||
| reinterpret_cast<void *>(alloc.Element<char>(allocAt)), 0)}; | ||
| StaticDescriptor<maxRank, true, 8 /*?*/> statDesc; |
There was a problem hiding this comment.
Because we still don't have a good implementation of LEN PDT parameters and I'm never sure how many to allocate for when instantiating StaticDesc.
eugeneepshteyn
approved these changes
Aug 28, 2025
akuhlens
approved these changes
Aug 28, 2025
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Ensure that blank padding takes place when a fixed-length character allocatable is allocated with a short SOURCE= specifier. While here, clean up DoFromSourceAssign() so that it uses a temporary descriptor on the stack rather than allocating one from the heap.
Fixes #155703.