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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
2010-08-10Simplify code and add comments, in code that generate debug info for ↵Devang Patel
constant integer globals, based on Chris's feedback. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110694 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-10Even if a constant's evaluated value is used, emit debug info for the ↵Devang Patel
constant variable. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110660 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-07Allow reference binding of a reference of Objective-C object type toDouglas Gregor
an lvalue of another, compatible Objective-C object type (e.g., a subclass). Introduce a new initialization sequence step kind to describe this binding, along with a new cast kind. Fixes PR7741. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110513 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-07Store inheritance paths after CastExprs instead of inside them.John McCall
This takes some trickery since CastExpr has subclasses (and indeed, is abstract). Also, smoosh the CastKind into the bitfield from Expr. Drops two words of storage from Expr in the common case of expressions which don't need inheritance paths. Avoids a separate allocation and another word of overhead in cases needing inheritance paths. Also has the advantage of not leaking memory, since destructors for AST nodes are never run. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110507 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-07Correct -ftrapv to trap on errors, instead of calling theChris Lattner
__overflow_handler entrypoint that David Chisnall made up. Calling __overflow_handler is not part of the contract of -ftrapv provided by GCC, and should never have been checked in in the first place. According to: http://permalink.gmane.org/gmane.comp.compilers.clang.devel/8699 David is using this for some of arbitrary precision integer stuff or something, which is not an appropriate thing to implement on this. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110490 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-06Initialize variable to work around warning; unfortunately, there isn't anyEli Friedman
way to tell gcc "really, values outside the enum aren't valid". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110450 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-06Attempt to fix uninitialized value warning reported on cfe-commits.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110418 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-05Argument evaluation order is not guaranteed. Split these out to force an order.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110354 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-05Fix a major bug with -ftrapv and ++/--. Patch by David Keaton!John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110347 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-05Add IRGen support for non-constant OffsetOfExpr.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110326 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-23Vectors are not integer types, so the type system should not classifyDouglas Gregor
them as such. Type::is(Signed|Unsigned|)IntegerType() now return false for vector types, and new functions has(Signed|Unsigned|)IntegerRepresentation() cover integer types and vector-of-integer types. This fixes a bunch of latent bugs. Patch from Anton Yartsev! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109229 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20Update ImplicitCastExpr to be able to represent an XValue.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108807 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
2010-06-29IRgen: Assignment to Objective-C properties shouldn't reload the value (whichDaniel Dunbar
would trigger an extra method call). - While in the area, I also changed Clang to not emit an unnecessary load from 'x' in cases like 'y = (x = 1)'. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107210 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-28Fix UnitTests/2004-02-02-NegativeZero.c, which regressed whenChris Lattner
I broke negate of FP values. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107019 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-27finally get around to doing a significant cleanup to irgen:Chris Lattner
have CGF create and make accessible standard int32,int64 and intptr types. This fixes a ton of 80 column violations introduced by LLVMContextification and cleans up stuff a lot. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106977 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26fix inc/dec to honor -fwrapv and -ftrapv, implementing PR7426.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106962 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26move scalar inc/dec codegen into ScalarExprEmitter instead Chris Lattner
of being in CGF. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106961 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26use more efficient type comparison predicates.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106958 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26Fix unary minus to trap on overflow with -ftrapv, refactoring binopChris Lattner
code so we can use it from VisitUnaryMinus. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106957 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26Implement support for -fwrapv, rdar://7221421Chris Lattner
As part of this, pull together trapv handling into the same enum. This also add support for NSW multiplies. This also makes PCH disagreement on overflow behavior silent, since it really doesn't matter except for warnings and codegen (no macros get defined etc). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106956 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26implement rdar://7432000 - signed negate should codegen as NSW.Chris Lattner
While I'm in there, adjust pointer to member adjustments as well. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106955 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-09Fix a gcc warning.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105670 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-08Extend __builtin_shufflevector to expose the full power of the llvm ↵Nate Begeman
shufflevector instruction. This means it can now be used for vector truncation and concatenation. This will be used for the ARM NEON implementation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105589 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-22Really fix PR7139. There was one boost test that we still failed, and my ↵Anders Carlsson
first fix broke self-host. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104447 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-21Unbreak self-host.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104390 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-21Rename CodeGenFunction::EmitMemSetToZero to EmitNullInitialization. Handle ↵Anders Carlsson
setting null data member pointers correctly. Fixes PR7139. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104387 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-15Substantially alter the design of the Objective C type AST by introducingJohn McCall
ObjCObjectType, which is basically just a pair of one of {primitive-id, primitive-Class, user-defined @class} with a list of protocols. An ObjCObjectPointerType is therefore just a pointer which always points to one of these types (possibly sugared). ObjCInterfaceType is now just a kind of ObjCObjectType which happens to not carry any protocols. Alter a rather large number of use sites to use ObjCObjectType instead of ObjCInterfaceType. Store an ObjCInterfaceType as a pointer on the decl rather than hashing them in a FoldingSet. Remove some number of methods that are no longer used, at least after this patch. By simplifying ObjCObjectPointerType, we are now able to easily remove and apply pointers to Objective-C types, which is crucial for a certain kind of ObjC++ metaprogramming common in WebKit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103870 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14Make sure that value-initialized pointers to data members are initialized ↵Anders Carlsson
correctly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103771 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
2010-04-24Get rid of the old GetNonVirtualBaseClassOffset and change all call sites to ↵Anders Carlsson
use the new version. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102274 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-24Change CodeGenFunction::GetAddressOfDerivedClass to take a BasePath.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102273 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-24Add a new GetAddressOfBaseClass overload that takes a base path and. Use it ↵Anders Carlsson
for derived-to-base casts. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102270 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-23Handle compound assignment expressions (i += j) as lvalues, which isDouglas Gregor
permitted in C++ but not in C. Fixes PR6900. Clang can now handle all of Boost.Lambda's regression tests. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102170 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-05IRgen: Move BitField LValues to just hold a reference to the CGBitFieldInfo.Daniel Dunbar
- Unfortunately, this requires some horrible code in CGObjCMac which always allocats a CGBitFieldInfo because we don't currently build a proper layout for Objective-C classes. It needs to be cleaned up, but I don't want the bit-field cleanups to be blocked on that. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100474 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-30Introduce a new kind of derived-to-base cast which bypasses the need forJohn McCall
null checks, and make sure we elide null checks when accessing base class members. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99963 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-29emit signed integer subtractions as 'sub nsw', patch byChris Lattner
Anton Yartsev! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99817 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03Fix code gen bug generating code forFariborz Jahanian
((id)cat)->isa. Fixes radar 7709015. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97672 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-15Uniformize the names of type predicates: rather than having isFloatTy andDuncan Sands
isInteger, we now have isFloatTy and isIntegerTy. Requested by Chris! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96224 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05Fix a code gen bug accessing 'isa' field via a message callFariborz Jahanian
(Fixes radar 7609722). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95406 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-04Rename StartConditionalBranch/FinishConditionalBranch to ↵Anders Carlsson
BeginConditionalBranch/EndConditionalBranch. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95308 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02Move pointer to data member emission to CodeGenModule and use it in ↵Anders Carlsson
CGExprConstant. Fixes PR5674. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95063 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-31Some class related cleanup.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94938 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
2010-01-09refactor pre/postinc logic into CGF and require the caller to pass in theChris Lattner
lvalue to poke, no functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93075 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-03Get rid of more dead code.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92439 91177308-0d34-0410-b5e6-96231b3b80d8
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