EDFA crashes SSAT

Bugzilla Link	957
Created on	May 20, 2012 17:23
Version	svn
OS	Linux
Architecture	PC

Extended Description

Build #17829 contains my latest -doedfa code, which attempts
to eliminate duplicate arguments from LACFUNs.
The generated code for the failing example looks OK to me,
but it does not look OK to SSAT, which crashes in RN_top in
SSATid: (SSATransform.c):
 case RN_top:
      new_avis = AVIS_SSASTACK_TOP( ID_AVIS( arg_node));
AVIS_SSASTACK_TOP has a pointer of some sort in it, but *AVIS_SSASTACK_TOP
is 57. Homage to Mr. Heinz?
Suggestions welcome.
This should break it:
sac2c -v1 -doedfa -nowlf -doawlf ~/sac/testsuite/optimizations/edfa/bug907BAKD.sac