- Realized these functions will eventually need access to more data,
moved to CodeGenModule. Eventually they should probably live
together in some other helper class.
llvm-svn: 56039
- Add CodeGenFunction::EmitAnyExprToTemp
o Like EmitAnyExpr, but emits aggregates to a temporary location if
none is available. Seems like this should be simpler (even aside
from using first class aggregates).
- Killed CodeGenFunction::EmitCallArg (just append the pair)
- Conversion of RValues to actual call arguments is now isolated in
CodeGenFunction::EmitCall.
llvm-svn: 55970
aliases.
- Attributes specific to a definition are only set when the
definition is seen.
- Alias generation is delayed until the end of the module; necessary
since the alias may reference forward.
- Fixes: PR2743, <rdr://6140807&6094512>
- Improves: <rdr://6095112> (added XFAIL)
Also, print module on verification failures.
llvm-svn: 55966
- Add CGCall.h for dealing with ABI issues related to calls.
- Add CGFunctionInfo and CGCallInfo for capturing ABI relevant
information about functions and calls.
- Isolate LLVM parameter attribute handling inside CGCall.cpp
llvm-svn: 55963
This change effects both RecordDecls and CXXRecordDecls, but does not effect EnumDecls (yet).
The motivation of this patch is as follows:
- Capture more source information, necessary for refactoring/rewriting clients.
- Pave the way to resolve ownership issues with RecordDecls with the forthcoming
addition of DeclGroups.
Current caveats:
- Until DeclGroups are in place, we will leak RecordDecls not explicitly
referenced by the AST. For example:
typedef struct { ... } x;
The RecordDecl for the struct will be leaked because the TypedefDecl doesn't
refer to it. This will be solved with DeclGroups.
- This patch also (temporarily) breaks CodeGen. More below.
High-level changes:
- As before, TagType still refers to a TagDecl, but it doesn't own it. When
a struct/union/class is first referenced, a RecordType and RecordDecl are
created for it, and the RecordType refers to that RecordDecl. Later, if
a new RecordDecl is created, the pointer to a RecordDecl in RecordType is
updated to point to the RecordDecl that defines the struct/union/class.
- TagDecl and RecordDecl now how a method 'getDefinition()' to return the
TagDecl*/RecordDecl* that refers to the TagDecl* that defines a particular
enum/struct/class/union. This is useful from going from a RecordDecl* that
defines a forward declaration to the RecordDecl* that provides the actual
definition. Note that this also works for EnumDecls, except that in this case
there is no distinction between forward declarations and definitions (yet).
- Clients should no longer assume that 'isDefinition()' returns true from a
RecordDecl if the corresponding struct/union/class has been defined.
isDefinition() only returns true if a particular RecordDecl is the defining
Decl. Use 'getDefinition()' instead to determine if a struct has been defined.
- The main changes to Sema happen in ActOnTag. To make the changes more
incremental, I split off the processing of enums and structs et al into two
code paths. Enums use the original code path (which is in ActOnTag) and
structs use the ActOnTagStruct. Eventually the two code paths will be merged,
but the idea was to preserve the original logic both for comparison and not to
change the logic for both enums and structs all at once.
- There is NO CHAINING of RecordDecls for the same RecordType. All RecordDecls
that correspond to the same type simply have a pointer to that type. If we
need to figure out what are all the RecordDecls for a given type we can build
a backmap.
- The diff in CXXRecordDecl.[cpp,h] is actually very small; it just mimics the
changes to RecordDecl. For some reason 'svn' marks the entire file as changed.
Why is CodeGen broken:
- Codegen assumes that there is an equivalence between RecordDecl* and
RecordType*. This was true before because we only created one RecordDecl* for
a given RecordType*, but it is no longer true. I believe this shouldn't be too
hard to change, but the patch was big enough as it is.
I have tested this patch on both the clang test suite, and by running the static analyzer over Postgresql and a large Apple-internal project (mix of Objective-C and C).
llvm-svn: 55839
The motivation behind this change is that chaining the RecordDecls is simply unnecessary. Once we create multiple RecordDecls for the same struct/union/class, clients that care about all the declarations of the same struct can build a back map by seeing which Decls refer to the same RecordType.
llvm-svn: 55821
- Change Obj-C runtime message API, drop the ObjCMessageExpr arg in
favor of just result type and selector. Necessary so it can be
reused in situations where we don't want to cons up an
ObjCMessageExpr.
- Update aggregate binary assignment to know about special property
ref lvalues.
- Add CodeGenFunction::EmitCallArg overload which takes an already
emitted rvalue.
Add CodeGenFunction::StoreComplexIntoAddr.
Disabled logic in Sema for parsing Objective-C dot-syntax that
accesses methods. This code does not search in the correct order and
the AST node has no way of properly representing its results.
Updated StmtDumper to print a bit more information about
ObjCPropertyRefExprs.
llvm-svn: 55561
- Added CodeGenFunction::EmitCall which just takes the callee, return
type, and a list of (Value*,QualType) pairs.
- Added CodeGenFunction::EmitCallArg which handles emitting code for
a call argument and turning it into an appropriate
(Value*,QualType) pair.
- Changed Objective-C runtime interface so that the actual emission
of arguments for message sends is (once again) done in the code to
emit a message send.
No intended functionality change, this is prep work for better ABI
support and for Objective-C property setter support.
llvm-svn: 55560
- Only supports simple assignment and atomic semantics are ignored.
- Not quite usable yet because the methods do not actually get added
to the class metadata.
- Added ObjCPropertyDecl::getSetterKind (one of Assign, Copy, Retain).
- Rearrange CodeGenFunction so synthesis can reuse function prolog /
epilog code.
llvm-svn: 55365
Add CodeGenFunction::EmitUnsupportedLValue
- Gives error and returns undef value.
Swap some asserts() over to using EmitUnsupportedLValue
- Rumor has it users (and even some developers) prefer carat
diagnostics to backtraces.
- Works better in Release-Asserts to boot.
llvm-svn: 55328
EmitScalarConversion().
- Important for allowing Obj-C void * to id<X> casts and so on.
- Not sure about this fix however, perhaps Type should understand
that id is effectively a pointer type.
llvm-svn: 55311
- This ensures that references to undefined classes cause link
errors.
- NOTE: This relies on platform specific asm directives currently,
this should be factored out.
Also, don't emit a SYMBOLS metadata entry if there are no symbols.
llvm-svn: 55302
