[flang-commits] [flang] [Flang][HLFIR] Lower PACK(array, .TRUE.) to hlfir.reshape (PR #213603)

[Tom Eccles via flang-commits]

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@@ -2372,6 +2372,29 @@ genIntrinsicRefCore(Fortran::lower::PreparedActualArguments &loweredActuals,
 
 /// Lower calls to intrinsic procedures with actual arguments that have been
 /// pre-lowered but have not yet been prepared according to the interface.
+static bool
+isPackWithScalarTrueMask(const Fortran::evaluate::ProcedureRef &procRef,
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tblah wrote:

I wonder if this should instead add hlfir.pack as a transformational intrinsic and then either lower it to hlfir.reshape or to the existing runtime call? This would be a bit cleaner and match the design of other operations but would involve more boilerplate.

https://github.com/llvm/llvm-project/pull/213603