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From: "dodji at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug debug/46955] New: Missing DW_AT_const_value from DW_TAG_template_value_parameter Date: Wed, 15 Dec 2010 10:19:00 -0000 [thread overview] Message-ID: <bug-46955-4@http.gcc.gnu.org/bugzilla/> (raw) http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46955 Summary: Missing DW_AT_const_value from DW_TAG_template_value_parameter Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: debug AssignedTo: unassigned@gcc.gnu.org ReportedBy: dodji@gcc.gnu.org struct S { int f; }; template<int S::*MP> struct T { }; T<&S::f> v; For v's type, I just see: <2><4f>: Abbrev Number: 6 (DW_TAG_template_value_param) <50> DW_AT_name : MP <53> DW_AT_type : <0x58> That is, this parameter has no value. This is because the DWARF emitter doesn't know how to handle the C++ specific PTRMEM_CST node that represenst the argument &S::f at that point. That PTRMEM_CST needs to be folded further into something low level enough for the DWARF emitter to understand, while keeping its OFFSET_TYPE type meaning it's a pointer-to-member constant. This has been first reported in a comment of PR debug/41736, but I am opening this specific bug for it as I think those two bugs are different.
next reply other threads:[~2010-12-15 10:19 UTC|newest] Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top 2010-12-15 10:19 dodji at gcc dot gnu.org [this message] 2010-12-15 10:21 ` [Bug debug/46955] " dodji at gcc dot gnu.org 2010-12-16 17:09 ` dodji at gcc dot gnu.org 2011-01-11 21:39 ` dodji at gcc dot gnu.org 2011-01-11 23:13 ` dodji at gcc dot gnu.org
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