aboutsummaryrefslogtreecommitdiff
path: root/lib/AST/ExprConstant.cpp
AgeCommit message (Collapse)Author
2010-08-29Implement C++0x user-defined string literals.Sean Hunt
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112458 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25GCC didn't care for my attempt at API compatibility, so brute-force everythingJohn McCall
to the new constants. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112047 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16Move a bunch of code out of the ComplexExprEvaluator class definition;Eli Friedman
no functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111207 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-14PR7884: Fix the implementations of __real__ and __imag__ on real floats.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111080 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13Zap unused UnaryOperator::OffsetOf.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110996 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-05Get rid of isObjectType; when C++ says "object type", it generallyEli Friedman
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110303 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-26Fix namespace polution.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109440 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-13Introduce a new cast kind for an "lvalue bitcast", which handlesDouglas Gregor
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108294 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08Reinstate the fix for PR7556. A silly use of isTrivial() wasDouglas Gregor
suppressing copies of objects with trivial copy constructors. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107857 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07Revert r107828 and r107827, the fix for PR7556, which seems to beDouglas Gregor
breaking bootstrap on Linux. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107837 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07Rename CXXZeroInitValueExpr to CXXScalarValueInitExpr, to reflect itsDouglas Gregor
newly-narrowed scope. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107828 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07Don't consider casted non-global pointers to be evaluatable.John McCall
Fixes rdar://problem/8154689 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107755 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-16Introduce Type::isIntegralOrEnumerationType(), to cover those placesDouglas Gregor
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106071 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-11Fix the constant evaluator for AltiVec-style vector literals so that theJohn McCall
vector is filled with the given constant; we were just initializing the first element. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105824 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-16When constant folding reference variables with an initializer to theChandler Carruth
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103904 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14Added Expr::EvaluateAsAnyLValue.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103780 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-10Refactor the constant-evaluator so that it only supports a single formJohn McCall
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103444 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07The FP constant evaluator was missing a few cases of unary operators that ↵John McCall
return floats but whose operand isn't a float: specifically, __real__ and __imag__. Instead of filtering these out, just implement them. Fixes <rdar://problem/7958272>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103307 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07Make that null-dereference fix a little clearer by rearranging some code.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103298 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07Fix a potential null dereference in the pointer-to-bool evaluator; caught byJohn McCall
Eli Friedman. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103297 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07Change the pointer / lvalue constant evaluators to build into a target referenceJohn McCall
and return a bool. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103296 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07Change the complex constant evaluator to return a bool instead of an APValue.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103268 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07Fix PR4386 by implementing gcc's old behaviour (4.2) when initializingRafael Espindola
variables with a comparison of a function pointer with 0. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103253 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07Change Evaluate* in the constant evaluator to enforce being given an argument ofJohn McCall
the right type. It turns out that the code was already doing this. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103238 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07Move CheckICE and isIntegerConstantExpr to ExprConstant.cpp because it seemedJohn McCall
like a good idea at the time. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103237 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29A not equal for an unordered relation should return true as specified in ↵Mon P Wang
IEEE-754, e.g., NAN != NAN ? 1 : 0 should return 1. Also fix the case for complex. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102598 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29Teach __builtin_offsetof to compute the offsets of members of baseDouglas Gregor
classes, since we only warn (not error) on offsetof() for non-POD types. We store the base path within the OffsetOfExpr itself, then evaluate the offsets within the constant evaluator. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102571 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-28Completely reimplement __builtin_offsetof, based on a patch by RobertoDouglas Gregor
Amadini. This change introduces a new expression node type, OffsetOfExpr, that describes __builtin_offsetof. Previously, __builtin_offsetof was implemented using a unary operator whose subexpression involved various synthesized array-subscript and member-reference expressions, which was ugly and made it very hard to instantiate as a template. OffsetOfExpr represents the AST more faithfully, with proper type source information and a more compact representation. OffsetOfExpr also has support for dependent __builtin_offsetof expressions; it can be value-dependent, but will never be type-dependent (like sizeof or alignof). This commit introduces template instantiation for __builtin_offsetof as well. There are two major caveats to this patch: 1) CodeGen cannot handle the case where __builtin_offsetof is not a constant expression, so it produces an error. So, to avoid regressing in C, we retain the old UnaryOperator-based __builtin_offsetof implementation in C while using the shiny new OffsetOfExpr implementation in C++. The old implementation can go away once we have proper CodeGen support for this case, which we expect won't cause much trouble in C++. 2) __builtin_offsetof doesn't work well with non-POD class types, particularly when the designated field is found within a base class. I will address this in a subsequent patch. Fixes PR5880 and a bunch of assertions when building Boost.Python tests. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102542 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-26Introduce Type::isStructureOrClassType(), which does the obviousDouglas Gregor
thing. Audit all uses of Type::isStructure(), changing those calls to isStructureOrClassType() as needed (which is alsmost everywhere). Fixes the remaining failure in Boost.Utility/Swap. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102386 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20remove some extraneous qualifiers.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101912 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13Teach HasSideEffect about InitListExprs. Not havingChris Lattner
this caused us to codegen dead globals like this: struct foo { int a; int b; }; static struct foo fooarray[] = { {1, 2}, {4}, }; git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101150 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-20Evaluate: Fix a subtle bug in the pointer evaluator in which we would do anDaniel Dunbar
expression computation in the wrong bit-width, and end up generating a totally bogus array reference (_g0+8589934546). - This showed up on Prolangs/cdecl. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99042 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-28Support constant-evaluation of __builtin_nans* as well as the correct constantJohn McCall
evaluation of __builtin_nan*. Most of the work to make this work is in LLVM. Fixes <rdar://problem/7696712> and part of PR 5255. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97383 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-13Fix for PR6274: teach constant folding to evaluate __builtin_expect.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96054 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03Don't try to fold DeclRefExprs that point to ParmVarDecls. This had the ↵Anders Carlsson
side-effect of always folding the expression to the default argument of the parameter. For example: void f(int a = 10) { return a; } would always return 10, regardless of the passed in argument. This fixes another 600 test failures. We're now down to only 137 failures! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95262 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-01In C++, an initializer on a variable doesn't necessarily mean it's the ↵Sebastian Redl
definition. With that in mind, rename getDefinition to getAnyInitializer (to distinguish it from getInit) and reimplement it in terms of isThisDeclarationADefinition. Update all code to use this new function. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94999 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-27Change the return type of ASTContext::getDeclAlignInBytes() to CharUnits and,Ken Dyck
now that the "InBytes" part of the name is implied by the return type, rename it to getDeclAlign(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94681 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-23Created __builtin___NSStringMakeConstantString() builtin, which generates ↵David Chisnall
constant Objective-C strings. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94274 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19Update and move around comments.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93942 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-15Convert the type of the LValue offset variable in APValue to CharUnits, movingKen Dyck
the LValue-related methods of APValue out of line to avoid header file leaching. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93512 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-11Roll out ASTContext::getTypeSizeInChars(), replacing instances ofKen Dyck
"ASTContext::getTypeSize() / 8". Replace [u]int64_t variables with CharUnits ones as appropriate. Also rename RawType, fromRaw(), and getRaw() in CharUnits to QuantityType, fromQuantity(), and getQuantity() for clarity. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93153 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05Add Expr::EvaluateAsBooleanCondition(), which does unprincipled folding toJohn McCall
try to evaluate an expression as a constant boolean condition. This has the same intended semantics as used in folding conditional operators. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92805 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-03__builtin_object_size(ptr, type) returns -1 for type = {0,1} if there are ↵Benjamin Kramer
any side-effects. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92453 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-27Fix PointerExprEvaluator::VisitCastExpr so it doesn't misfold C++ casts whichEli Friedman
it doesn't know how to fold, like derived-to-base casts. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92173 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-25Remove some dead variables clang-analyzer found.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92162 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-23Update for the intrinsic changes in llvm: the object size intrinsicEric Christopher
only takes a boolean second argument now. Update tests accordingly. Currently the builtin still accepts the full range for compatibility. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91983 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-11Use StringRef.getAsInteger instead of temporary string + strtol. No intended ↵Benjamin Kramer
functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91118 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-10Clean up enum constants so that they're finally sane. Fixes PR3173 and aEli Friedman
recently introduced crash. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91070 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-04Fix for PR5447: teach Evaluate to deal with floating-point conditionals.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90521 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-03Add recursion guards to ice-checking and evaluation for declrefs, so weEli Friedman
don't infinitely recurse for cases we can't evaluate. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90480 91177308-0d34-0410-b5e6-96231b3b80d8
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-05-07 04:30:39 +0000