[patch] Fix PR23165

[James A. Morrison]

 Hi,

  This patch fixes pr23165 and pr23161 by looking into STATEMENT_LISTs and
checking if the last statement in the list is a token representing an empty
if stmt.  The reason we have a STATEMENT_LIST around even though the if stmt
is empty is because a label is put into the STATEMENT_LIST so we have to
look past all the labels.  Previously we didn't look into the STATEMENT_LIST
so a statement with no type was passed to the gimplifier which caused a
segfault, pr23165.  This patch has been bootstraped and regtested on ia64-linux
with no new regressions, ok for mainline?

:ADDPATCH C:

-- 
Thanks,
Jim

http://www.csclub.uwaterloo.ca/~ja2morri/
http://phython.blogspot.com
http://open.nit.ca/wiki/?page=jim

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