Razvan Lupusoru f27081ba6a [FIR] Avoid generating llvm.undef for dummy scoping info (#128098) ...

Dummy scoping operations are generated to keep track of scopes for
purpose of Fortran level analyses like Alias Analysis. For codegen, the
scoping info is converted to a fir.undef during pre-codegen rewrite.
Then during declare lowering, this info is no longer used - but it is
still translated to llvm.undef. I cleaned up so it is simply erased. The
generated LLVM should now no longer have a stray undef which looks off
when trying to make sense of the IR.

Co-authored-by: Razvan Lupusoru <rlupusoru@nvidia.com>

2025-02-20 18:49:23 -08:00

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