EWLF can lose AVIS_SHAPE/DIM information in N_ap invocation
Extended Description
Created an attachment (id=543)
Source code to reproduce fault
If I compile the attached with: sac2c -nowlf -extrema -doswlf,
ive_split_selections complains because it does not have
AVIS_SHAPE/DIM information for Loop_4 argument x.
The calling environment DOES have that information, so something
in saacyc and EWLF is doing bad stuff.
This is noticable inasmuch as it causes your basic factor-of-50
slowdown in the binary search code used in APEX set membership,
indexof, and elsewhere.
