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authorebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4>2009-07-07 20:46:06 +0000
committerebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4>2009-07-07 20:46:06 +0000
commit75f6aa1535910908e6f82b01541fdf204a3bcc76 (patch)
tree62db0a7e19f85d27e3c92815a90884a37aa15f8d /gcc/dbxout.c
parentb475d0846fed03c1ad069a2923fc218a9cc20693 (diff)
downloadgcc-75f6aa1535910908e6f82b01541fdf204a3bcc76.tar.gz
PR debug/40666
* dbxout.c (dbxout_symbol) <PARM_DECL>: Deal with parameters pointing to variables for debugging purposes. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@149346 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/dbxout.c')
-rw-r--r--gcc/dbxout.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/gcc/dbxout.c b/gcc/dbxout.c
index df11628329b..bc7965e25b8 100644
--- a/gcc/dbxout.c
+++ b/gcc/dbxout.c
@@ -2778,9 +2778,15 @@ dbxout_symbol (tree decl, int local ATTRIBUTE_UNUSED)
}
case PARM_DECL:
- /* Parm decls go in their own separate chains
- and are output by dbxout_reg_parms and dbxout_parms. */
- gcc_unreachable ();
+ if (DECL_HAS_VALUE_EXPR_P (decl))
+ decl = DECL_VALUE_EXPR (decl);
+
+ /* PARM_DECLs go in their own separate chain and are output by
+ dbxout_reg_parms and dbxout_parms, except for those that are
+ disguised VAR_DECLs like Out parameters in Ada. */
+ gcc_assert (TREE_CODE (decl) == VAR_DECL);
+
+ /* ... fall through ... */
case RESULT_DECL:
case VAR_DECL: