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path: root/test/SemaCXX/conditional-expr.cpp
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2010-04-09Turn access control on by default in -cc1.John McCall
Remove -faccess-control from -cc1; add -fno-access-control. Make the driver pass -fno-access-control by default. Update a bunch of tests to be correct under access control. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100880 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-02Rework our handling of copy construction of temporaries, which was aDouglas Gregor
poor (and wrong) approximation of the actual rules governing when to build a copy and when it can be elided. The correct implementation is actually simpler than the approximation. When we only enumerate constructors as part of initialization (e.g., for direct initialization or when we're copying from a class type or one of its derived classes), we don't create a copy. When we enumerate all conversion functions, we do create a copy. Before, we created some extra copies and missed some others. The new test copy-initialization.cpp shows a case where we missed creating a (required, non-elidable) copy as part of a user-defined conversion, which resulted in a miscompile. This commit also fixes PR6757, where the missing copy made us reject well-formed code in the ternary operator. This commit also cleans up our handling of copy elision in the case where we create an extra copy of a temporary object, which became necessary now that we produce the right copies. The code that seeks to find the temporary object being copied has moved into Expr::getTemporaryObject(); it used to have two different not-quite-the-same implementations, one in Sema and one in CodeGen. Note that we still do not attempt to perform the named return value optimization, so we miss copy elisions for return values and throw expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100196 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-26When trying to determine whether one operand of a conditionalDouglas Gregor
expression can be converted to the type of another, only apply the lvalue-to-rvalue conversion to the type of the expression we're converting, *not* the array-to-pointer or function-to-pointer conversions. Fixes PR6595. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99652 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-26Switch semantic analysis of the conditional operator from usingDouglas Gregor
CheckReferenceInit to using the new initialization sequence code. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99647 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19Promote enum types during -Wsign-compare. Fixes some spurious warnings,John McCall
mostly during conditional expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98975 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
2010-02-10Improve access control diagnostics. Perform access control on member-pointerJohn McCall
conversions. Fix an access-control bug where privileges were not considered at intermediate points along the inheritance path. Prepare for friends. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95775 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-12Chris thinks these diagnostics are better now. :)John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93216 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-12Introduce a specific representation for the ambiguous implicit conversionJohn McCall
sequence. Lots of small relevant changes. Fixes some serious problems with ambiguous conversions; also possibly improves associated diagnostics. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93214 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-22Switch initialization of parameters in a call over toDouglas Gregor
InitializationSequence (when a FunctionDecl is present). This required a few small fixes to initialization sequences: - Make sure to use the adjusted parameter type for initialization of function parameters. - Implement transparent union calling semantics in C git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91902 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
2009-11-06Turn off -Wsign-compare warnings by defaultDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86233 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Implement the conditional-operator part of -Wsign-compare. TurnJohn McCall
DiagnoseSignCompare into Sema::CheckSignCompare and call it from more places. Add some enumerator tests. These seem to expose some oddities in the types we're converting C++ enumerators to; in particular, they're converting to unsigned before int, which seems to contradict 4.5 [conv.prom] p2. Note to self: stop baiting Doug in my commit messages. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86128 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-14Diagnose taking the address of a bit-field inside a conditional operator.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81808 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-24Implement support for equality comparisons (!=, ==) of memberDouglas Gregor
pointers, by extending the "composite pointer type" logic to include member pointer types. Introduce test cases for member pointer comparisons, including those that involve the builtin operator candidates implemented earlier. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79925 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-13Disable access control by default. It can be enabled with the ↵Anders Carlsson
-faccess-control option. When we have better support for it, we can enable it by default again. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71706 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-26Make reference class unification in conditional expressions check for ↵Sebastian Redl
validity of the conversion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70121 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-19Conditional operator C++ checking complete. What issues remain are in more ↵Sebastian Redl
general code. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69555 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-19Bring member pointer operands of the conditional operator to a common type. ↵Sebastian Redl
We're getting there ... git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69548 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-19Another piece of the conditional operator puzzle. We'll want to use ↵Sebastian Redl
FindCompositePointerType in some other places, too. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69534 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-17Implement lvalue test for conditional expressions.Sebastian Redl
Add a few commented lines to the test case that point out things that don't work yet. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69354 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-16Fix a crash bug when comparing overload quality of conversion operators with ↵Sebastian Redl
conversion constructors. Remove an atrocious amount of trailing whitespace in the overloaded operator mangler. Sorry, couldn't help myself. Change the DeclType parameter of Sema::CheckReferenceInit to be passed by value instead of reference. It wasn't changed anywhere. Let the parser handle C++'s irregular grammar around assignment-expression and conditional-expression. And finally, the reason for all this stuff: implement C++ semantics for the conditional operator. The implementation is complete except for determining lvalueness. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69299 91177308-0d34-0410-b5e6-96231b3b80d8