lower-bitint: Encode address space qualifiers in VIEW_CONVERT_EXPRs [PR113736]

lower-bitint: Encode address space qualifiers in VIEW_CONVERT_EXPRs [PR113736]

As discussed in the PR, e.g. build_fold_addr_expr needs TYPE_ADDR_SPACE
on the outermost reference rather than just on the base, so the
following patch makes sure to propagate the address space from
the accessed var to the MEM_REFs and/or VIEW_CONVERT_EXPRs used to
access those.

2024-02-06  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/113736
	* gimple-lower-bitint.cc (bitint_large_huge::limb_access): Use
	var's address space for MEM_REF or VIEW_CONVERT_EXPRs.

	* gcc.dg/bitint-86.c: New test.