fcef3cf510
Rewrite ComplexExprEvaluator::VisitCastExpr to use cast kinds, and fix
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the basic casting logic to insert intermediate casts and preserve the
exact complex-cast design. Fixes a crash in the test suite.
llvm-svn: 121776
2010-12-14 17:51:41 +00:00
9e0e7096a3
Improved complex constants evaluation.
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llvm-svn: 121616
2010-12-11 16:05:48 +00:00
34b2113250
Remove the TypesCompatibleExprClass AST node. Merge its functionality into BinaryTypeTraitExpr.
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llvm-svn: 121298
2010-12-08 22:35:30 +00:00
6d4db0c885
PR5207: Change APInt methods trunc(), sext(), zext(), sextOrTrunc() and
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zextOrTrunc(), and APSInt methods extend(), extOrTrunc() and new method
trunc(), to be const and to return a new value instead of modifying the
object in place.
llvm-svn: 121121
2010-12-07 08:25:34 +00:00
9dfa3ce94f
Type traits intrinsic implementation: __is_base_of(T, U)
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New AST node introduced: BinaryTypeTraitExpr; to be reused for more intrinsics.
llvm-svn: 121074
2010-12-07 00:08:36 +00:00
5d41378146
Rename CXXExprWithTemporaries -> ExprWithCleanups; there's no theoretical
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reason this is limited to C++, and it's certainly not limited to temporaries.
llvm-svn: 120996
2010-12-06 08:20:24 +00:00
b7bd14fa08
Simplify the ASTs by consolidating ObjCImplicitGetterSetterExpr and ObjCPropertyRefExpr
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into the latter.
llvm-svn: 120643
2010-12-02 01:19:52 +00:00
d50a27111c
Kill CK_Unknown and flesh out the documentation for the existing CastKinds.
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llvm-svn: 119331
2010-11-16 05:46:29 +00:00
8d69a2160e
Add a new expression kind, OpaqueValueExpr, which is useful for
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certain internal type-checking procedures as well as for representing
certain implicitly-generated operations. Uses to follow.
llvm-svn: 119289
2010-11-15 23:31:06 +00:00
d764625448
Add a few more complex-related cast kinds that arise due to arbitrary
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implicit conversions; the last batch was specific to promotions.
I think this is the full set we need. I do think dividing the cast
kinds into floating and integral is probably a good idea.
Annotate a *lot* more C casts with useful cast kinds.
llvm-svn: 119036
2010-11-14 08:17:51 +00:00
c5e62b47af
Introduce five new cast kinds for various conversions into and
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between complex types.
llvm-svn: 118994
2010-11-13 09:02:35 +00:00
e84af4e486
Introduce a null-to-pointer implicit cast kind.
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llvm-svn: 118966
2010-11-13 01:35:44 +00:00
18a2c2c0b9
Split out -Wconversion warnings about constant precision into their
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own subcategory, -Wconstant-conversion, which is on by default.
Tweak the constant folder to give better results in the invalid
case of a negative shift amount.
Implements rdar://problem/6792488
llvm-svn: 118636
2010-11-09 22:22:12 +00:00
fd88a6160d
Rename getBaseClassOffset to getBaseClassOffsetInBits and introduce a getBaseClassOffset which returns the offset in CharUnits. Do the same thing for getVBaseClassOffset.
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llvm-svn: 117881
2010-10-31 23:22:37 +00:00
1827509176
Teach the constant expr evaluator about derived-to-base casts when no virtual bases are involved. Fixes PR5974.
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llvm-svn: 117868
2010-10-31 20:41:46 +00:00
a5df61a341
Don't try to evaluate the LHS or RHS of a member pointer binary operation. Fixes PR8507.
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llvm-svn: 117850
2010-10-31 01:21:47 +00:00
681c0754d9
Eliminate usage of ObjCSuperExpr used for
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'super' as receiver of property or a setter/getter
methods. //rdar: //8525788
llvm-svn: 116483
2010-10-14 16:04:05 +00:00
a2fabff4f6
Permit constant evaluation of const floating-point variables with
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constant initializers.
llvm-svn: 116138
2010-10-09 01:34:31 +00:00
8eb06f17c4
Eagerly evaluate type traits in Sema instead of lazily in AST. They actually need Sema access to be correct, fixes coming up.
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llvm-svn: 113782
2010-09-13 20:56:31 +00:00
5f0180d815
First version of a testcase, plus fixes.
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llvm-svn: 113624
2010-09-10 20:55:47 +00:00
4202c0f2a9
Define and implement CXXNoexceptExpr. Create it in Sema.
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llvm-svn: 113623
2010-09-10 20:55:43 +00:00
6a6dac2fbf
Support strlen() and __builtin_strlen() as constant expressions with
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the call argument is a string literal. Fixes
<rdar://problem/8413477>.
llvm-svn: 113580
2010-09-10 06:27:15 +00:00
5cc0a67f08
Fix warnings caused by new CXXUuidofExprClass enumerator.
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llvm-svn: 113444
2010-09-08 23:47:05 +00:00
08e3cdcffa
Get rid of unnecessary return.
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llvm-svn: 113132
2010-09-06 00:31:37 +00:00
0b1fbd1394
PR7242: Make sure to use a different context for evaluating constant
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initializers, so the result of the evaluation doesn't leak through
inconsistently. Also, don't evaluate references to variables with
initializers with side-effects.
llvm-svn: 113128
2010-09-06 00:10:32 +00:00
6429f5cf29
Eliminate CXXBindReferenceExpr, which was used in a ton of
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well-intentioned but completely unused code.
llvm-svn: 112868
2010-09-02 21:50:02 +00:00
3b7918625c
Revert my user-defined literal commits - r1124{58,60,67} pending
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some issues being sorted out.
llvm-svn: 112493
2010-08-30 17:47:05 +00:00
79eb5469e0
Implement C++0x user-defined string literals.
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The extra data stored on user-defined literal Tokens is stored in extra
allocated memory, which is managed by the PreprocessorLexer because there isn't
a better place to put it that makes sure it gets deallocated, but only after
it's used up. My testing has shown no significant slowdown as a result, but
independent testing would be appreciated.
llvm-svn: 112458
2010-08-29 21:26:48 +00:00
e302792b61
GCC didn't care for my attempt at API compatibility, so brute-force everything
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to the new constants.
llvm-svn: 112047
2010-08-25 11:45:40 +00:00
c3e9df3cc0
Move a bunch of code out of the ComplexExprEvaluator class definition;
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no functionality change.
llvm-svn: 111207
2010-08-16 23:27:44 +00:00
9571953f36
PR7884: Fix the implementations of __real__ and __imag__ on real floats.
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llvm-svn: 111080
2010-08-14 20:52:13 +00:00
a2622dd266
Zap unused UnaryOperator::OffsetOf.
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llvm-svn: 110996
2010-08-13 01:36:11 +00:00
a170cd6257
Get rid of isObjectType; when C++ says "object type", it generally
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just means "not a function type", not "not a function type or void". This
changes behavior slightly, but generally in a way which accepts more code.
llvm-svn: 110303
2010-08-05 02:49:48 +00:00
28ade550f4
Fix namespace polution.
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llvm-svn: 109440
2010-07-26 21:25:24 +00:00
51954276cc
Introduce a new cast kind for an "lvalue bitcast", which handles
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reinterpret_casts (possibly indirectly via C-style/functional casts)
on values, e.g.,
int i;
reinterpret_cast<short&>(i);
The IR generated for this is essentially the same as for
*reinterpret_cast<short*>(&i).
Fixes PR6437, PR7593, and PR7344.
llvm-svn: 108294
2010-07-13 23:17:26 +00:00
747eb7840a
Reinstate the fix for PR7556. A silly use of isTrivial() was
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suppressing copies of objects with trivial copy constructors.
llvm-svn: 107857
2010-07-08 06:14:04 +00:00
e182370eda
Revert r107828 and r107827, the fix for PR7556, which seems to be
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breaking bootstrap on Linux.
llvm-svn: 107837
2010-07-07 23:37:33 +00:00
6df2b8c3ac
Rename CXXZeroInitValueExpr to CXXScalarValueInitExpr, to reflect its
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newly-narrowed scope. No functionality change.
llvm-svn: 107828
2010-07-07 22:43:56 +00:00
11086fcb65
Don't consider casted non-global pointers to be evaluatable.
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Fixes rdar://problem/8154689
llvm-svn: 107755
2010-07-07 05:08:32 +00:00
b90df60b3b
Introduce Type::isIntegralOrEnumerationType(), to cover those places
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in C++ that involve both integral and enumeration types. Convert all
of the callers to Type::isIntegralType() that are meant to work with
both integral and enumeration types over to
Type::isIntegralOrEnumerationType(), to prepare to eliminate
enumeration types as integral types.
llvm-svn: 106071
2010-06-16 00:17:44 +00:00
875679eea0
Fix the constant evaluator for AltiVec-style vector literals so that the
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vector is filled with the given constant; we were just initializing the
first element.
llvm-svn: 105824
2010-06-11 17:54:15 +00:00
e299ba66f5
When constant folding reference variables with an initializer to the
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initializer, don't fold paramters. Their initializers are just default
arguments which can be overridden. This fixes some spectacular regressions due
to more things making it into the constant folding.
llvm-svn: 103904
2010-05-16 09:32:51 +00:00
f819945365
Added Expr::EvaluateAsAnyLValue.
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llvm-svn: 103780
2010-05-14 17:07:14 +00:00
9500760829
Refactor the constant-evaluator so that it only supports a single form
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of constant-evaluation. Formerly you could control whether it accepted
local l-values or not; now it always evaluates local l-values in the core
routines, but filters them out where consumed by the top-level routines.
This will make it much easier to cache evaluability.
llvm-svn: 103444
2010-05-10 23:27:23 +00:00
b1fb0d3610
The FP constant evaluator was missing a few cases of unary operators that return floats
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but whose operand isn't a float: specifically, __real__ and __imag__. Instead
of filtering these out, just implement them.
Fixes <rdar://problem/7958272>.
llvm-svn: 103307
2010-05-07 22:08:54 +00:00
eb3e4f3481
Make that null-dereference fix a little clearer by rearranging some code.
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llvm-svn: 103298
2010-05-07 21:34:32 +00:00
06f0e09756
Fix a potential null dereference in the pointer-to-bool evaluator; caught by
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Eli Friedman.
llvm-svn: 103297
2010-05-07 21:01:17 +00:00
45d55e4f26
Change the pointer / lvalue constant evaluators to build into a target reference
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and return a bool.
llvm-svn: 103296
2010-05-07 21:00:08 +00:00
93d91dcdb7
Change the complex constant evaluator to return a bool instead of an APValue.
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llvm-svn: 103268
2010-05-07 17:22:02 +00:00
a1f9cc1bec
Fix PR4386 by implementing gcc's old behaviour (4.2) when initializing
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variables with a comparison of a function pointer with 0.
llvm-svn: 103253
2010-05-07 15:18:43 +00:00
John McCall