[Bug tree-optimization/39355] [4.4 Regression] Revision 144529 miscompiled libcpp/expr.c

[dave at hiauly1 dot hia dot nrc dot ca]

------- Comment #42 from dave at hiauly1 dot hia dot nrc dot ca  2009-03-21 18:32 -------
Subject: Re:  [4.4 Regression] Revision 144529 miscompiled libcpp/expr.c

> remap_decls in revision 144529 was incorrect, see PR 39345. I
> added remapped_type for PR 39345. Please found which remap_decls
> or remapped_type call is the trigger. We may need another fix for
> remap_decls/remapped_type.

I am currently debugging with trunk revision 144962, so I think I have
all the current bug fixes in this area..

The problem appears to occur before remap_decls.
DECL_HAS_VALUE_EXPR_P (origin_var) is true for

(gdb) p debug_tree (origin_var)
 <parm_decl 0x60809ee0 __y
    type <complex_type 0x604cab28 complex double
    ...

It's a puzzle how this can occur with no DECL_VALUE_EXPR.

Dave


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39355