[Bug debug/46724] [4.6 Regression] Wrong debug info: Invalid variable location

[aoliva at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46724

--- Comment #11 from Alexandre Oliva <aoliva at gcc dot gnu.org> 2010-12-22 03:49:06 UTC ---
Author: aoliva
Date: Wed Dec 22 03:49:00 2010
New Revision: 168160

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=168160
Log:
PR debug/46724
* function.c (assign_parms_augmented_arg_list): Name and mark
DECL of result address as NAMELESS rather than IGNORED.
(assign_parms): Set DECL_VALUE_EXPR for indirect result.
* tree.h (tree_decl_common::decl_flag_2): Document RESULT_DECL.
(DECL_HAS_VALUE_EXPR_P): Accept RESULT_DECL.
* dwarf2out.c (loc_list_from_tree) <RESULT_DECL>: Use
DECL_VALUE_EXPR.
* dbxout.c (dbxout_expand_expr) <RESULT_DECL>: Likewise.
* var-tracking.c (vt_add_function_parameter): New, split out of...
(vt_add_function_parameters): ... this.  Handle incoming
pointer to hold result.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/dbxout.c
    trunk/gcc/dwarf2out.c
    trunk/gcc/function.c
    trunk/gcc/tree.h
    trunk/gcc/var-tracking.c