Fortran: Fix compiler crash when recognizing RESULT attribute.

Fixes a compiler internal error (ICE) in function symbol handling related to Fortran's RESULT attribute.

By Jerry DeLisle July 11, 2026 committed

This commit resolves an internal compiler error (ICE) in the Fortran front-end’s gfc_get_symbol_decl function. It updates the symbol declaration resolution to correctly recognize the RESULT attribute, preventing the compiler from misinterpreting a function’s result variable as a host-associated symbol.

In Details

The was_declared function in fortran/resolve.cc incorrectly treated a function's RESULT variable declaration as a potential host-associated symbol. This commit adds recognition for the RESULT attribute to prevent such misinterpretations, fixing PR fortran/78718 and an associated ICE.

For Context

ICE: Internal Compiler Error. A condition where the compiler encounters an unrecoverable situation during code analysis or transformation, leading to a crash.
RESULT attribute: In Fortran, this attribute is used to name the dummy procedure argument that receives the function's return value, allowing for direct modification of the return value within the function.
host-associated symbol: In Fortran, a symbol declared in an intrinsic module or host procedure that is accessible within a contained procedure.

Filed Under: fortrancompilerbugfix

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