Commit Graph

23 Commits

Author SHA1 Message Date
Richard Smith 263a0a33cc Don't warn about runtime behavior problems in variable initializers that we
know are going to be constant-evaluated.

Any relevant diagnostics should be produced by constant expression evaluation.

llvm-svn: 314067
2017-09-23 18:27:11 +00:00
Richard Smith c95d2c5dda Give external linkage and mangling to lambdas inside inline variables and variable templates.
This implements the proposed approach in https://github.com/itanium-cxx-abi/cxx-abi/issues/33

This reinstates r313827, reverted in r313856, with a fix for the 'out-of-bounds
enumeration value' ubsan error in that change.

llvm-svn: 313955
2017-09-22 04:25:05 +00:00
Vitaly Buka 17def21749 Revert "Give external linkage and mangling to lambdas inside inline variables and variable templates."
To fix: runtime error: load of value 15, which is not a valid value for type 'clang::LVComputationKind'

This reverts commit r313827.

llvm-svn: 313856
2017-09-21 02:51:56 +00:00
Richard Smith fb130c6084 Give external linkage and mangling to lambdas inside inline variables and variable templates.
This implements the proposed approach in https://github.com/itanium-cxx-abi/cxx-abi/issues/33

llvm-svn: 313827
2017-09-20 22:17:55 +00:00
Charles Li 85dec55989 [Lit Test] Updated 20 Lit tests to be C++11 compatible.
This is the 5th Lit test patch.
Expanded expected diagnostics to vary by C++ dialect.
Expanded RUN line to: default, C++98/03 and C++11.

llvm-svn: 255196
2015-12-10 01:07:17 +00:00
Ben Langmuir 577b39349e Fix assert instantiating string init of static variable
... when the variable's type is a typedef of a ConstantArrayType. Just
look through the typedef (and any other sugar).  We only use the
constant array type here to get the element count.

llvm-svn: 227115
2015-01-26 19:04:10 +00:00
Richard Smith e434590bd9 Change the diagnostics which said 'accepted as an extension' to instead say
'is an extension'. The former is inappropriate and confusing when building with
-Werror/-pedantic-errors.

llvm-svn: 147357
2011-12-29 21:57:33 +00:00
Richard Smith 256336d9ab Mark the ExtWarn for in-class initialization of static const float members as a GNU extension. Don't extend the scope of this extension to all literal types in C++0x mode.
llvm-svn: 140820
2011-09-29 23:18:34 +00:00
Richard Smith 2316cd8b79 constexpr: semantic checking for constexpr variables.
We had an extension which allowed const static class members of floating-point type to have in-class initializers, 'as a C++0x extension'. However, C++0x does not allow this. The extension has been kept, and extended to all literal types in C++0x mode (with a fixit to add the 'constexpr' specifier).

llvm-svn: 140801
2011-09-29 19:11:37 +00:00
Douglas Gregor b0f2ea9e9e When printing a qualified type, look through a substituted template
parameter type to see what's behind it, so that we don't end up
printing silly things like "float const *" when "const float *" would
make more sense. Also, replace the pile of "isa" tests with a simple
switch enumerating all of the cases, making a few more obvious cases
use prefix qualifiers.

llvm-svn: 125729
2011-02-17 06:52:25 +00:00
John McCall db76892e72 Support in-class initialization of static const floating-point data members.
llvm-svn: 113663
2010-09-10 23:21:22 +00:00
John McCall 85f9055955 When pretty-printing tag types, only print the tag if we're in C (and
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.

llvm-svn: 98149
2010-03-10 11:27:22 +00:00
Douglas Gregor 79e31db9a9 When looking for a redeclaration of a static variable, only look for redeclarations. Fixes PR6449
llvm-svn: 97478
2010-03-01 19:11:54 +00:00
Chris Lattner 7011795ee4 use DiagRuntimeBehavior to silence the div/rem by zero warning when
not in an evaluated context.  This removes some bogus warnings.

llvm-svn: 93258
2010-01-12 21:30:55 +00:00
Chris Lattner faa5417264 implement PR6004, warning about divide and remainder by zero.
llvm-svn: 93256
2010-01-12 21:23:57 +00:00
John McCall fd0b2f8fe4 Improve the diagnostics used to report implicitly-generated class members
as parts of overload sets.  Also, refer to constructors as 'constructors'
rather than functions.

Adjust a lot of tests.

llvm-svn: 92832
2010-01-06 09:43:14 +00:00
Douglas Gregor 39c778b443 Switch default-initialization of variables of class type (or array thereof) over to InitializationSequence. I could swear that this fixes a PR somewhere, but I couldn't figure out which one
llvm-svn: 91796
2009-12-20 22:01:25 +00:00
Daniel Dunbar 8fbe78f6fc Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'.
- 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).

llvm-svn: 91446
2009-12-15 20:14:24 +00:00
Douglas Gregor 580cd4a23e When we're building a CXXExprWithTemporaries, only include those
temporaries that are within our current evaluation context. That way,
nested evaluation contexts (e.g., within a sizeof() expression) won't
see temporaries from outer contexts. Also, make sure to push a new
evaluation context when instantiating the initializer of a variable;
this may be an unevaluated context or a potentially-evaluated context,
depending on whether it's an in-class initializer or not. Fixes PR5672.

llvm-svn: 90460
2009-12-03 17:10:37 +00:00
Douglas Gregor ff790f15c4 Refactor our handling of expression evaluation contexts, so that Sema
maintains a stack of evaluation contexts rather than having the parser
do it. This change made it simpler to track in which contexts
temporaries were created, so that we could...

"Forget" about temporaries created within unevaluated contexts, so
that we don't build a CXXExprWithTemporaries and, therefore, destroy
the integral-constness of our expressions. Fixes PR5609.

llvm-svn: 89908
2009-11-26 00:44:06 +00:00
Owen Anderson 0e0189d64d Update for LLVM API change.
llvm-svn: 77267
2009-07-27 22:29:56 +00:00
Douglas Gregor d612997e73 When instantiating a variable without an initializer, call
ActOnUninitializedDecl.

llvm-svn: 77211
2009-07-27 17:43:39 +00:00
Douglas Gregor ef1a09a336 Implement template instantiation for static data members of class
templates, including in-class initializers. For example:

  template<typename T, T Divisor>
  class X {
  public:
    static const T value = 10 / Divisor;
  };

instantiated with, e.g.,

  X<int, 5>::value

to get the value '2'.

llvm-svn: 67715
2009-03-25 23:32:15 +00:00