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2012-11-26PR14428: When instantiating a 'new' expression, if we had a non-dependentRichard Smith
initialization, don't rebuild it. Remove a couple of hacks which were trying to work around this. Fix the special case for one-argument CXXConstructExprs to not apply if the one argument is a default argument. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168582 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-23Sema: Provide a valid source location when instantiating templates based on ↵Benjamin Kramer
a CXXDefaultArgExpr. Fixes PR13758. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168521 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-26Add a missing ExpressionEvaluationContext for template default arguments. ↵Eli Friedman
Fixes PR12581. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155670 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-04Enhance the diagnostic for negative array sizes to include theChandler Carruth
declaration name of the array when present. This ensures that a poor-man's C++03 static_assert will include the user error message often embedded in the name. Update all the tests to reflect the new wording, and add a test for the name behavior. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122802 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19When marking declarations referenced within an expression (e.g.,Douglas Gregor
within a default argument), recurse into default arguments. Fixes PR8401, a regression I introduced in r113700 while refactoring our handling of "used" declarations in default arguments. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116817 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-14When marking the declarations in a default argument expression asDouglas Gregor
"used", at the time that the default argument itself is used, also mark destructors that will be called by this expression. This fixes a regression that I introduced in r113700, which broke WebKit, and fixes <rdar://problem/8427926>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113883 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-11Teach the EvaluatedExprVisitor and its client, which marksDouglas Gregor
declarations in potentially-evaluated subexpressions, about recursion. Fixes the release-mode self-host failure I introduced in r113700. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113708 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-11When parsing default function arguments, do not mark any declarationsDouglas Gregor
used in the default function argument as "used". Instead, when we actually use the default argument, make another pass over the expression to mark any used declarations as "used" at that point. This addresses two kinds of related problems: 1) We were marking some declarations "used" that shouldn't be, because we were marking them too eagerly. 2) We were failing to mark some declarations as "used" when we should, if the first time it was instantiated happened to be an unevaluated context, we wouldn't mark them again at a later point. I've also added a potentially-handy visitor class template EvaluatedExprVisitor, which only visits the potentially-evaluated subexpressions of an expression. I bet this would have been useful for noexcept... Fixes PR5810 and PR8127. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113700 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-26Ensure that we have completed a type before attempting initializationDouglas Gregor
on that type. Fixes several problems in Boost.Interprocess. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102339 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-22Whenever we complain about a failed initialization of a function orDouglas Gregor
method parameter, provide a note pointing at the parameter itself so the user does not have to manually look for the function/method being called and match up parameters to arguments. For example, we now get: t.c:4:5: warning: incompatible pointer types passing 'long *' to parameter of type 'int *' [-pedantic] f(long_ptr); ^~~~~~~~ t.c:1:13: note: passing argument to parameter 'x' here void f(int *x); ^ git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102038 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10When pretty-printing tag types, only print the tag if we're in C (andJohn McCall
therefore not creating ElaboratedTypes, which are still pretty-printed with the written tag). Most of these testcase changes were done by script, so don't feel too sorry for my fingers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98149 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05Default function arguments for function template specializationsDouglas Gregor
always come from the primary template, so gather the instantiation template arguments from the primary template. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95380 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-13Improve the reporting of non-viable overload candidates by noting the reasonJohn McCall
why the candidate is non-viable. There's a lot we can do to improve this, but it's a good start. Further improvements should probably be integrated with the bad-initialization reporting routines. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93277 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-06Improve the diagnostics used to report implicitly-generated class membersJohn McCall
as parts of overload sets. Also, refer to constructors as 'constructors' rather than functions. Adjust a lot of tests. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92832 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-23When we see a CXXDefaultArgExpr during template instantiation, rebuildDouglas Gregor
the default argument so that we're sure to mark any referenced declarations. This gets us another little step closer to fixing PR5810. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92078 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-23When using a default function argument for a function template (orDouglas Gregor
member function thereof), perform the template instantiation each time the default argument is needed. This ensures that (1) We get different CXXTemporary objects for each instantiation, and (2) Any other instantiations or definitions triggered by the instantiation of the default argument expression are guaranteed to happen; previously, they might have been suppressed, e.g., because they happened in an unevaluated context. This fixes the majority of PR5810. However, it does not address the problem where we may have multiple uses of the same CXXTemporary within an expression when the temporary came from a non-instantiated default argument expression. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92015 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-22Switch default arguments over to InitializationSequence.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91883 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-19Switch more of Sema::CheckInitializerTypes over toDouglas Gregor
InitializationSequence. Specially, switch initialization of a C++ class type (either copy- or direct-initialization). Also, make sure that we create an elidable copy-construction when performing copy initialization of a C++ class variable. Fixes PR5826. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91750 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-15Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'.Daniel Dunbar
- This is designed to make it obvious that %clang_cc1 is a "test variable" which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it can be useful to redefine what gets run as 'clang -cc1' (for example, to set a default target). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91446 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-09Make sure that we instantiate default function arguments for anDouglas Gregor
overloaded operator(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86581 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-08Special-case default argument expression in instantiation. This should fix ↵Sebastian Redl
PR4301. Doug, please double-check my assumptions. Read the PR for more details. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86465 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-29Make sure to call CompleteConstructorCall for bases and members that are ↵Anders Carlsson
initialized implicitly in constructors so that default arguments etc are set correctly. Fixes PR5283. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85510 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-17Merge uninstantiated default arguments more carefully, and try not toDouglas Gregor
complain about specializations of member functions that are not definitions. Fixes PR4995. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82159 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-16Teach Sema::FindInstantiatedDecl to find instantiated RecordDecls evenDouglas Gregor
when we are not instantiating the corresponding "current instantiation." This happens, e.g., when we are instantiating a declaration reference that refers into the "current instantiation" but occurs in a default function argument. The libstdc++ vector default constructor now instantiates properly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82069 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11Cleanup and test C++ default arguments. Improvements include:Douglas Gregor
- Diagnose attempts to add default arguments to templates (or member functions of templates) after the initial declaration (DR217). - Improve diagnostics when a default argument is redefined. Now, the note will always point at the place where the default argument was previously defined, rather than pointing to the most recent declaration of the function. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81548 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-06Reapply 81096, now with a fix. Spot the bug:Anders Carlsson
for (unsigned i = numargs; i < NumArgs; ++i) Args[0] = 0; ;) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81123 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-06Revert "Initialize default CXXConstructExpr arguments to 0. Fixes a crash whenDaniel Dunbar
destroying the CXXConstructExpr.", this is causing test failures across the board. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81100 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-05Initialize default CXXConstructExpr arguments to 0. Fixes a crash when ↵Anders Carlsson
destroying the CXXConstructExpr. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81096 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-05Report errors for member functions correctly.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81063 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-05Use a separate diagnostic for default function argument expressions.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81062 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25Add a little more testing for default arguments of constructors in a class ↵Douglas Gregor
template git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79989 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25If a parameter has a default argument expression, make sure to instantiate ↵Anders Carlsson
the parameter type before checking that the expression is a valid initializer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79986 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25Improved support for default arguments in constructors for class templates.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79984 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25Basic support for default argument expressions for function templates.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79972 91177308-0d34-0410-b5e6-96231b3b80d8