forked from OSchip/llvm-project
803f1e4653
Andrezj W. @ Arm discovered that the runtime derived type table building code in semantics was detecting fatal errors in the tests that the f18 driver wasn't printing. This patch fixes f18 so that these messages are printed; however, the messages were not valid user errors, and the rest of this patch fixes them up. There were two sources of the bogus errors. One was that the runtime derived type information table builder was calculating the shapes of allocatable and pointer array components in derived types, and then complaining that they weren't constant or LEN parameter values, which of course they couldn't be since they have to have deferred shapes and those bounds were expressions like LBOUND(component,dim=1). The second was that f18 was forwarding the actual LEN type parameter expressions of a type instantiation too far into the uses of those parameters in various expressions in the declarations of components; when an actual LEN type parameter is not a constant value, it needs to remain a "bare" type parameter inquiry so that it will be lowered to a descriptor inquiry and acquire a captured expression value. Fixing this up properly involved: moving some code into new utility function templates in Evaluate/tools.h, tweaking the rewriting of conversions in expression folding to elide needless integer kind conversions of type parameter inquiries, making type parameter inquiry folding *not* replace bare LEN type parameters with non-constant actual parameter values, and cleaning up some altered test results. Differential Revision: https://reviews.llvm.org/D101001 |
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| bbc | ||
| f18 | ||
| f18-parse-demo | ||
| fir-opt | ||
| flang-driver | ||
| tco | ||
| CMakeLists.txt | ||