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path: root/lib/CodeGen/CGExpr.cpp
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2008-07-29Rework codegen emission of globalsDaniel Dunbar
- No (intended) functionality change. - Primary purpose is to clearly separate (lazy) construction of globals that are a forward declaration or tentative definition from those that are the final definition. - Lazy construction is now encapsulated in GetAddrOf{Function,GlobalVar} while final definitions are constructed in EmitGlobal{Function,Var}Definition. - External interface for dealing with globals is now limited to EmitGlobal and GetAddrOf{Function,GlobalVar}. - Also updated helper functions dealing with statics, annotations, and ctors to be private. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54179 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-26remove uses of QualType::getCanonicalType() from codegen for PR2189Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54107 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-26change more instances of QualType::getCanonicalType to callChris Lattner
ASTContext::getCanonicalType instead (PR2189) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54105 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17Change self/_cmd to be instances of ImplicitParamDecl instead of ParmVarDecl.Chris Lattner
Patch by David Chisnall! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@52422 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17This patch is motivated by numerous strict-aliasing warnings when compilingTed Kremenek
clang as a Release build. The big change is that all AST nodes (subclasses of Stmt) whose children are Expr* store their children as Stmt* or arrays of Stmt*. This is to remove strict-aliasing warnings when using StmtIterator. None of the interfaces of any of the classes have changed (except those with arg_iterators, see below), as the accessor methods introduce the needed casts (via cast<>). While this extra casting may seem cumbersome, it actually adds some important sanity checks throughout the codebase, as clients using StmtIterator can potentially overwrite children that are expected to be Expr* with Stmt* (that aren't Expr*). The casts provide extra sanity checks that are operational in debug builds to catch invariant violations such as these. For classes that have arg_iterators (e.g., CallExpr), the definition of arg_iterator has been replaced. Instead of it being Expr**, it is an actual class (called ExprIterator) that wraps a Stmt**, and provides the necessary operators for iteration. The nice thing about this class is that it also uses cast<> to type-checking, which introduces extra sanity checks throughout the codebase that are useful for debugging. A few of the CodeGen functions that use arg_iterator (especially from OverloadExpr) have been modified to take begin and end iterators instead of a base Expr** and the number of arguments. This matches more with the abstraction of iteration. This still needs to be cleaned up a little bit, as clients expect that ExprIterator is a RandomAccessIterator (which we may or may not wish to allow for efficiency of representation). This is a fairly large patch. It passes the tests (except CodeGen/bitfield.c, which was already broken) on both a Debug and Release build, but it should obviously be reviewed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@52378 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-13Basic support for volatile loads and stores. Stores the volatile Eli Friedman
qualifier in the lvalue, and changes lvalue loads/stores to honor the volatile flag. Places which need some further attention are marked with FIXMEs. Patch by Cédric Venet. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@52264 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-01First cut at setting attributes for functions and calls; this puts us Eli Friedman
much closer to passing the gcc struct layout tests. It might be possible to refactor this a bit, but I'm not sure there's actually enough common code for that to be useful. To get the calling convention completely correct, a bit of platform-specific code is necessary even for x86-Linux. On x86-Linux, the alignment of function parameters is extremely strange; as far as I can tell, it's always 4 except for SSE vectors or structs containing SSE vectors. I'm continuing to investigate this. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51839 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-01Minor cleanup to use the ConvertTypeForMem helper.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51837 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-29Rearrange EmitLValueForField a bit to work properly for _Bool bitfields Eli Friedman
in unions (we don't want to do the union-specific bitcast for bit-fields). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51678 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-22Change uses of llvm::Type::isFirstClassType to use the newDan Gohman
llvm::Type::isSingleValueType. Currently these two functions have the same behavior, but soon isFirstClassType will return true for struct and array types. Clang may some day want to use of isFirstClassType for some of these some day as an optimization, but it'll require some consideration. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51446 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-22Move getAccessedFieldNo out of lib/AST/Expr.cpp intoDan Gohman
lib/CodeGen/CGExpr.cpp and to change include/clang/AST/Attr.h to use its own enum for visibility types instead of using llvm::GlobalValue::VisibilityTypes. These changes eliminate dependencies in the AST library on LLVM's VMCore library. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51398 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-21Remove an unnecessary/buggy if check. Ran into this with some other Eli Friedman
changes in my tree, so I don't have a testcase which affects trunk. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51371 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-19Fix the emission of expressions like char a[10] = "asdf"; previously, Eli Friedman
they were causing bad code to be emitted. There are two fixes here: one makes sure we emit a string that is long enough, and one makes sure we properly handle string initialization in init lists. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51259 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-17Fix support for _Bool bitfields. The issue is that the bitfield width Eli Friedman
used for _Bool is not the same as the primitive width (which for _Bool is 1 bit). The load and store changes add some casts to make the types consistent. The EmitLValue changes make sure that the pointer is of an appropriate type for loading the bitfield. This isn't perfect, but it's an improvement, and getting everything right depends on actually laying out structs in an ABI-compliant way. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51224 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-13Add codegen support for block-level compound literals.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51081 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-13Remove AST dependency on VMCore by switching ExtVectorElementExpr off Constant.Nate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51068 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09Extend vector member references to include {.hi, .lo, .e, .o} which return aNate Begeman
vector of the same element type and half the width, with the high, low, even, and odd elements respectively. Allow member references to member references, so that .hi.hi gives you the high quarter of a vector. This is fairly convenient syntax for some insert/extract operations. Remove some unnecessary methods/types in the ExtVectorElementExpr class. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50892 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-18OCUVector -> ExtVector, shorthand for extended vector, per feedback from Chris.Nate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49942 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-15Remove FileVarDecl and BlockVarDecl. They are replaced by ↵Steve Naroff
VarDecl::isBlockVarDecl() and VarDecl::isFileVarDecl(). This is a fairly mechanical/large change. As a result, I avoided making any changes/simplifications that weren't directly related. I did break two Analysis tests. I also have a couple FIXME's in UninitializedValues.cpp. Ted, can you take a look? If the bug isn't obvious, I am happy to dig in and fix it (since I broke it). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49748 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-04Since isComplexType() no longer returns true for _Complex integers, the codeChris Lattner
generator needs to call isAnyComplexType(). This fixes PR1960. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49220 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-04Codegen assignment to self correctly, patch by David Chisnall!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49201 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-30some cleanups on top of David's patch. There are still twoChris Lattner
remaining open issues I've communicated to him: 1) self can be assigned to, and his patch didn't handle it correctly. 2) CollectObjCIvarTypes is N^2 (because each subclass reprocesses all parent class ivars) and flattens classes. If A derives from B, and both have an int, I'd expect to get { {i32}, i32}, not { i32, i32}. David, please review. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48970 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-30Add initial support for objc codegen for methods, ivars, and theChris Lattner
etoile runtime, patch by David Chisnall! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48969 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-19simplify the clang codegen by using the new Builder.CreateStructGEP method.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48534 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-15Make a major restructuring of the clang tree: introduce a top-levelChris Lattner
lib dir and move all the libraries into it. This follows the main llvm tree, and allows the libraries to be built in parallel. The top level now enforces that all the libs are built before Driver, but we don't care what order the libs are built in. This speeds up parallel builds, particularly incremental ones. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48402 91177308-0d34-0410-b5e6-96231b3b80d8