[Patch, fortran] [1/5] PR 45586: VIEW_CONVERT_EXPR wrapping

[Mikael Morin <mikael dot morin at sfr dot fr>]

This patch avoids fold_convert bombing when the types are not variants of the
same base type.  It is necessary to avoid regressing with the next patch.
It tries to take the VIEW_CONVERT_EXPR path only when it is necessary and
use the usual fold_convert otherwise.  I use gfc_nonrestricted_type in one
assertion, so I had to make it public

For what it's worth, I had another version of this patch which tried harder to
not use VIEW_CONVERT_EXPR by carefully avoiding copying the data pointer
(which is overwritten just after anyway). However, as I didn't want to pull
in the scalarizer to assign arrays, I couldn't avoid VIEW_CONVERT_EXPR in
all cases, so I finally preferred this (simpler) patch.

OK?

Attachment: pr45586-1.CL
Description: Text document

Attachment: pr45586_v7-1.patch
Description: Text document