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path: root/lib/CodeGen/CGExprConstant.cpp
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2009-04-13Minor work related to removing the assumption that value initialization Eli Friedman
implies an all-zero bit pattern. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68994 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-11Add support for generating reference initialization code.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68852 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-10Rename variables to avoid conflict.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68764 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09Propagate the ASTContext to various AST traversal and lookup functions.Douglas Gregor
No functionality change (really). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68726 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-08Add a destination type argument to EmitConstantExpr. This will be used for ↵Anders Carlsson
when the destination has a reference type. (No functionality change yet) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68593 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-01More "prep" work for handling UTF16 CFString.Steve Naroff
Patch by Jean-Daniel Dupas. Thanks! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68203 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-31Some "prep" work for handling ObjC @-string constants that contain UTF-8. No ↵Steve Naroff
functionality change. Changed GenerateConstantString() to take an ObjCStringLiteral (instead of a std::string). While this isn't strictly necessary, it seems cleaner and allows us to cache to "containsNonAscii" if necessary (to avoid checking in both Sema and CodeGen). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68114 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-03Return 0 if the ConstExprEmitter can't handle an expression.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65951 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01Do some blocks cleanup and simplification. Fix a crash, and add a test case.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65746 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-25CodeGen support for copied BlockDeclRefExprs.Mike Stump
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65487 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-24first wave of fixes for @encode sema support. This is part of PR3648.Chris Lattner
The big difference here is that (like string literal) @encode has array type, not pointer type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65391 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-24Fix IRgen of constant expressions referring to external/staticDaniel Dunbar
variables. - PR3657. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65381 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-22Eliminate a bunch of code which should be dead.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65267 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-19Add enough checking to ensure that non-constant block literals don'tMike Stump
appear to be constant. I'll probably redo this and throw it all away later once we have codegen for BlockDeclRefExprs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65070 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-19Remove IRgen constant emission assumption that LValue APValue resultsDaniel Dunbar
only occur for pointer types; they are also possible for integer types now. - No intended functionality change, IntExprEvaluate doesn't return LValue results yet. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65066 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-19More codegen for blocks. The type of block literals should be better.Mike Stump
The size calculation is improved. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64994 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-17Change EmitConstantExpr to allow failure.Daniel Dunbar
IRgen no longer relies on isConstantInitializer, instead we just try to emit the constant. If that fails then in C we emit an error unsupported (this occurs when Sema accepted something that it doesn't know how to fold, and IRgen doesn't know how to emit) and in C++ we emit a guarded initializer. This ends up handling a few more cases, because IRgen was actually able to emit some of the constants Sema accepts but can't Evaluate(). For example, PR3398. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64780 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-14Generate the helper function for blocks. Now basic codegen isMike Stump
starting to work for blocks. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64570 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-14Add hook to add attributes to function declarations that we knowDouglas Gregor
about, whether they are builtins or not. Use this to add the appropriate "format" attribute to NSLog, NSLogv, asprintf, and vasprintf, and to translate builtin attributes (from Builtins.def) into actual attributes on the function declaration. Use the "printf" format attribute on function declarations to determine whether we should do format string checking, rather than looking at an ad hoc list of builtins and "known" function names. Be a bit more careful about when we consider a function a "builtin" in C++. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64561 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12Add a very basic implemenation of global blocks. This needs to be cleaned up.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64387 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-11Silence a warning about an unused variable in -Asserts buildsDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64306 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-01Fix for PR3447: use padded sizes for computations on struct/union Eli Friedman
constants. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63491 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30Implement constant generation of ImplicitValueInitExprs.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63379 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29Introduce a new expression node, ImplicitValueInitExpr, thatDouglas Gregor
represents an implicit value-initialization of a subobject of a particular type. This replaces the (ab)use of CXXZeroValueInitExpr within initializer lists for the "holes" that occur due to the use of C99 designated initializers. The new test case is currently XFAIL'd, because CodeGen's ConstExprEmitter (in lib/CodeGen/CGExprConstant.cpp) needs to be taught to value-initialize when it sees ImplicitValueInitExprs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63317 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29Clean up designated initialization of unions, so that CodeGen doesn'tDouglas Gregor
have to try to guess which member is being initialized. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63315 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-28Improvements to code-generation and semantic analysis of designatedDouglas Gregor
initializers. - We now initialize unions properly when a member other than the first is named by a designated initializer. - We now provide proper semantic analysis and code generation for GNU array-range designators *except* that side effects will occur more than once. We warn about this. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63253 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-28Implement basic _Complex integer constant folding.Daniel Dunbar
- Merged into single ComplexEvaluator, these share too much logic to be worth splitting for float/int (IMHO). Will split on request. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63248 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-28Code generation support for C99 designated initializers.Douglas Gregor
The approach I've taken in this patch is relatively straightforward, although the code itself is non-trivial. Essentially, as we process an initializer list we build up a fully-explicit representation of the initializer list, where each of the subobject initializations occurs in order. Designators serve to "fill in" subobject initializations in a non-linear way. The fully-explicit representation makes initializer lists (both with and without designators) easy to grok for codegen and later semantic analyses. We keep the syntactic form of the initializer list linked into the AST for those clients interested in exactly what the user wrote. Known limitations: - Designating a member of a union that isn't the first member may result in bogus initialization (we warn about this) - GNU array-range designators are not supported (we warn about this) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63242 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-25Get rid of some code that should be unnecessary.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62950 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-25Make the constant folder aware of Eli Friedman
__builtin___CFStringMakeConstantString. (We get into trouble in GenerateStaticBlockVarDecl if the constant folder isn't accurate.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62949 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-25Fix the address of a label to be properly considered and emitted as aEli Friedman
constant. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62948 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-24remove dead code.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62930 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-18Add support for vectors to APValue. Vector constant evaluator and tests coming.Nate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62438 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-17add support for usage of cast to union thing with static varsNuno Lopes
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62387 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-12(LLVM up) Match TargetData API change in LLVM TOT.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62101 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-06Add QualifiedDeclRefExpr, which retains additional source-locationDouglas Gregor
information for declarations that were referenced via a qualified-id, e.g., N::C::value. We keep track of the location of the start of the nested-name-specifier. Note that the difference between QualifiedDeclRefExpr and DeclRefExpr does have an effect on the semantics of function calls in two ways: 1) The use of a qualified-id instead of an unqualified-id suppresses argument-dependent lookup 2) If the name refers to a virtual function, the qualified-id version will call the function determined statically while the unqualified-id version will call the function determined dynamically (by looking up the appropriate function in the vtable). Neither of these features is implemented yet, but we do print out qualified names for QualifiedDeclRefExprs as part of the AST printing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61789 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-20Add support for member references (E1.E2, E1->E2) with C++ semantics,Douglas Gregor
which can refer to static data members, enumerators, and member functions as well as to non-static data members. Implement correct lvalue computation for member references in C++. Compute the result type of non-static data members of reference type properly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61294 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-12add codegen support for __func__ and friends, producing the sameChris Lattner
output that GCC does. rdar://6440297 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60922 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-11Unifies the name-lookup mechanisms used in various parts of the ASTDouglas Gregor
and separates lexical name lookup from qualified name lookup. In particular: * Make DeclContext the central data structure for storing and looking up declarations within existing declarations, e.g., members of structs/unions/classes, enumerators in C++0x enums, members of C++ namespaces, and (later) members of Objective-C interfaces/implementations. DeclContext uses a lazily-constructed data structure optimized for fast lookup (array for small contexts, hash table for larger contexts). * Implement C++ qualified name lookup in terms of lookup into DeclContext. * Implement C++ unqualified name lookup in terms of qualified+unqualified name lookup (since unqualified lookup is not purely lexical in C++!) * Limit the use of the chains of declarations stored in IdentifierInfo to those names declared lexically. * Eliminate CXXFieldDecl, collapsing its behavior into FieldDecl. (FieldDecl is now a ScopedDecl). * Make RecordDecl into a DeclContext and eliminates its Members/NumMembers fields (since one can just iterate through the DeclContext to get the fields). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60878 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-01Change more code over to using the new Expr::EvaluateAnders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60323 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-25Remove the #ifdeffed out code.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60032 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-22Use tryEvaluate for constant exprs.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59857 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17A few corrections to the expr constant work. Not enabled at the Eli Friedman
moment. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59435 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17More expr constant work. (Off by default).Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59433 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-16rename Expr::tryEvaluate to Expr::Evaluate.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59426 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-16More constant expr work.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59405 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-15Check in code that uses tryEvaluate for emitting constant exprs (not used yet).Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59375 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-15Use IgnoreParenCasts. No functionality change.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59371 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-11Introduce a single AST node SizeOfAlignOfExpr for all sizeof and alignof ↵Sebastian Redl
expressions, both of values and types. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59057 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-26make codegen reject initializes with designators, like this:Chris Lattner
t.c:1:13: error: cannot codegen this designators yet int a[10] = {2, 4, [8]=9, 10}; ^~~~~~~~~~~~~~~~~ git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58220 91177308-0d34-0410-b5e6-96231b3b80d8
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