Summary:
This allows us to handle the general case where a non-type template
argument evaluates to a constant expression which isn't integral or a
declaration.
This fixes PR16939.
Reviewers: dblaikie, rsmith
Reviewed By: dblaikie
CC: cfe-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D1453
llvm-svn: 189165
We emit definitions with no members when a nested type is
referenced/required (GCC does the same, to be fair) but failed to attach
the template arguments in such a case.
llvm-svn: 187608
We could support the GCC extension DW_TAG_GNU_template_parameter_pack if
we're feeling adventurous, at some point - but I don't think GDB's doing
anything useful with it yet anyway.
llvm-svn: 181644
* Provide DW_TAG_template_value_parameter for pointers, function
pointers, member pointers, and member function pointers (still missing
support for template template parameters which GCC encodes as a
DW_TAG_GNU_template_template_param)
* Provide values for all but the (member & non-member) function pointer case.
Simple constant integer values for member pointers (offset within the
object) and address for the value pointer case. GCC doesn't provide a
value for the member function pointer case so I'm not sure how, if at
all, GDB supports encoding that. & non-member function pointers should
follow shortly in a subsequent patch.
* Null pointer value encodings of all of these types, including
correctly encoding null data member pointers as -1.
llvm-svn: 181634
This fixes several (7 out of 16) cases of PR14492 in the GDB 7.5 test
suite. It seems GDB was bailing out whenever it had even the slightest
problem with the template argument list (& I assume it didn't like
seeing template value parameters that were just simple names - perhaps
assuming that lone names must be types, not values)
llvm-svn: 181556
Both these tests were ultimately fixed by the check for
"isIncompleteType" & neither test case was really reduced to a minimal
form. On doing so it becomes apparent that the problem wasn't specific
to templates at all, so I've moved the test case to a more appropriate
test file and added FileCheck verification to it (to show the forward
declaration of the array element type as well as the array alignment and
size being 0 since it cannot be computed). That's about as far down this
rabbithole as I'm willing to go today, so the rest of the un-FileChecked
tests in test/CodeGenCXX/debug-info.cpp will have to go another day
without actually testing anything other than the fact that they don't
crash.
& improve the actually interesting test case in
test/CodeGenCXX/debug-info-templates.cpp which was my original goal (in
preparation for expanding it/fixing some related bugs in non-type
template parameters)
llvm-svn: 181552
David Majnemer