[Bug c++/20505] [4.0/4.1 Regression] internal error when compiling with -ggdb2 and no error with -ggdb1

["wilson at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Additional Comments From wilson at gcc dot gnu dot org  2005-04-01 04:04 -------
Fixed on mainline.  Still needs to be fixed on the gcc-4.0 branch, which I
assume Nathan is doing.

I had to back off a bit from my earlier plans.  Aggregate types and constructor
initializers pose complications that don't appear to be worth fixing, so I only
handle integral types, scalar real types, and STRING_CST.  I commonized the code
in rtl_for_decl_location and tree_add_const_value_attribute so that they both
work the same.

The testcase by the way isn't portable.  It requires that int and pointer be the
same size.  I had to do s/int/long to make it work on my ia64 and x86_64
systems.  But still that assumes long and pointers are the same size which is
not true for all ABIs supported by all targets.  This is why I didn't already
add the testcase to the testsuite on mainline.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20505