Clean up CodeGenModule interface.
- Add CodeGenModule::EmitTopLevelDecl which uses switch on kind
instead of ugly & slow dyn_cast chains.

- Drop some simple forwarding methods into the ObjC run

Clean up CodeGenModule interface.
- Add CodeGenModule::EmitTopLevelDecl which uses switch on kind
instead of ugly & slow dyn_cast chains.

- Drop some simple forwarding methods into the ObjC runtime.

- Privatize appropriate methods.

llvm-svn: 54827

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Change CGObjCRuntime methods to take appropriate clang Decls.
- This is in prep for implementation class support for the NeXT
runtime, for which the existing methods don't provide enough
infor

Change CGObjCRuntime methods to take appropriate clang Decls.
- This is in prep for implementation class support for the NeXT
runtime, for which the existing methods don't provide enough
information (and additionally make too many assumptions about how
things should be emitted).

llvm-svn: 54824

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Infinite loops considered harmful.
- Thanks Thomas

llvm-svn: 54818

Add GetAddrOfConstantCString method
- Returns addr of constant for argument + '\0'.
- I couldn't think of a better name.
- Move appropriate users of GetAddrOfConstantString to this.

Rename getStr

Add GetAddrOfConstantCString method
- Returns addr of constant for argument + '\0'.
- I couldn't think of a better name.
- Move appropriate users of GetAddrOfConstantString to this.

Rename getStringForStringLiteral to GetStringForStringLiteral.

Add GetAddrOfConstantStringFromLiteral
- This combines GetAddrOfConstantString and
GetStringForStringLiteral. This method can be, but is not yet, more
efficient.

Change GetAddrOfConstantString to not add terminating '\0'
- <rdar://problem/6140956>

llvm-svn: 54768

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Change ObjCRuntime GenerateProtocol[Ref] methods to take
ObjCProtocolDecl directly.

Implement CodeGen support for forward protocol decls (no-ops are so
nice to implement).

Also moved CGObjC

Change ObjCRuntime GenerateProtocol[Ref] methods to take
ObjCProtocolDecl directly.

Implement CodeGen support for forward protocol decls (no-ops are so
nice to implement).

Also moved CGObjCRuntime.h out of CodeGenModule.h

llvm-svn: 54709

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Fix compilation warning with help from David Chisnall.

llvm-svn: 54654

Add LangOptions::NeXTRuntime.
- Wired to -fnext-runtime and -fgnu-runtime options.
- Defaults to GNU, no autoselection for NeXT.

Emit NeXT OBJC_IMAGE_INFO marker.

llvm-svn: 54651

Change CodeGenModule to only create ObjC runtime for ObjC files
- Changed CodeGenModule::getObjCRuntime to return reference.
- Added CodeGenModule::hasObjCRuntime predicate.

llvm-svn: 54645

Add -fexceptions to Driver
- Maps to LangOptions.Exceptions
- Currently always off, should autoselect based on language.

Update CodeGen to set unwind attribute on functions definitions based

Add -fexceptions to Driver
- Maps to LangOptions.Exceptions
- Currently always off, should autoselect based on language.

Update CodeGen to set unwind attribute on functions definitions based
on LangOptions.Exceptions.
- Still need to set attributes appropriately on calls.

llvm-svn: 54643

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More #include cleaning
- Kill unnecessary #includes in .cpp files. This is an automatic
sweep so some things removed are actually used, but happen to be
included by a previous header. I tried

More #include cleaning
- Kill unnecessary #includes in .cpp files. This is an automatic
sweep so some things removed are actually used, but happen to be
included by a previous header. I tried to get rid of the obvious
examples and this was the easiest way to trim the #includes in one
fell swoop.
- We now return to regularly scheduled development.

llvm-svn: 54632

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More #include cleaning
- Drop {Decl.h,DeclObjC.h,IdentifierTable.h} from Expr.h
- Moved Sema::getCurMethodDecl() out of line (dependent on
ObjCMethodDecl via dyn_cast).

llvm-svn: 54629

Add dummy Mac Objective-C runtime interface.
- Not currently accessible and completely non-functional.

llvm-svn: 54624

Back out r54608 (inline string literals were getting an extra '\0')
temporarily, I assumed GetAddrForConstantString literal was being
used consistently but it doesn't look like it is.

Factored o

Back out r54608 (inline string literals were getting an extra '\0')
temporarily, I assumed GetAddrForConstantString literal was being
used consistently but it doesn't look like it is.

Factored out a CodeGenModule::getStringForStringLiteral which handles
extracting a std::string for the bytes of a StringLiteral, padded to
match the type.

Update EmitLValue to use getStringForStringLiteral, this was
previously not padding strings correctly. Good thing we only emit
strings in 4 different places!

llvm-svn: 54621

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Bug fix, inline string literals were getting an extra '\0'.

llvm-svn: 54608

Implement GNU asm-label extension support in CodeGen. This fixes
scimark2 on Darwin.

- Added Sema support for asm-label on variables, which I forgot before.

- Update CodeGen to use GlobalDeclMap

Implement GNU asm-label extension support in CodeGen. This fixes
scimark2 on Darwin.

- Added Sema support for asm-label on variables, which I forgot before.

- Update CodeGen to use GlobalDeclMap to determine if static Decls
require emission (instead of LLVM module name lookup). Important
since the Decl name and the LLVM module name can differ.

- <rdar://problem/6116729>

llvm-svn: 54388

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Change CodeGen of global decls to key off of the name (instead of
having multiple bindings from all the possible decls which
conceptually map to the same global).

- This eliminates CodeGen depe

Change CodeGen of global decls to key off of the name (instead of
having multiple bindings from all the possible decls which
conceptually map to the same global).

- This eliminates CodeGen depending on the LLVM module for name
lookup.

- This also eliminates the need for ReplaceMapValuesWith (hurrah).

- This handles lookups for FunctionDecls correctly in the presence of
aliases, this was previously broken.

- WIP: Can still clean up & unify variable and function emission.

llvm-svn: 54382

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Refactored driver logic for CodeGen into LLVMCodeGenWriter. This ASTConsumer layers on top of LLVMCodeGen (another existing ASTConsumer) to emit bitcode files to disk. This layering takes this logi

Refactored driver logic for CodeGen into LLVMCodeGenWriter. This ASTConsumer layers on top of LLVMCodeGen (another existing ASTConsumer) to emit bitcode files to disk. This layering takes this logic out of clang.cpp and puts it directly into the ASTConsumer interface. The benefit is that now --emit-llvm works with both serialized ASTs and regular source files.

llvm-svn: 54364

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Finally fix PR2189. This makes a fairly invasive but important change to
move getAsArrayType into ASTContext instead of being a method on type.
This is required because getAsArrayType(const AT), whe

Finally fix PR2189. This makes a fairly invasive but important change to
move getAsArrayType into ASTContext instead of being a method on type.
This is required because getAsArrayType(const AT), where AT is a typedef
for "int[10]" needs to return ArrayType(const int, 10).

Fixing this greatly simplifies getArrayDecayedType, which is a good sign.

llvm-svn: 54317

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Support constructor and destructor attributes in CodeGen

- There is an miscompilation issue remaining due to a poor
interaction between the delayed emission of static functions and
the emissi

Support constructor and destructor attributes in CodeGen

- There is an miscompilation issue remaining due to a poor
interaction between the delayed emission of static functions and
the emission of constructors, but that already existed prior to
this change.

llvm-svn: 54258

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Change CodeGenModule GlobalDeclMap to directly reference globals
instead of mapping the decl to a bitcast of the global to the correct
type.

- GetAddrOf{Function,GlobalVar} introduce the bitcast o

Change CodeGenModule GlobalDeclMap to directly reference globals
instead of mapping the decl to a bitcast of the global to the correct
type.

- GetAddrOf{Function,GlobalVar} introduce the bitcast on every use now.

- This solves a problem where a dangling pointer could be introduced
by the RAUW done when replacing a forward or tentative
definition. See testcase for more details.

- Fixes <rdar://problem/6108358>

llvm-svn: 54211

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Rework codegen emission of globals
- No (intended) functionality change.

- Primary purpose is to clearly separate (lazy) construction of
globals that are a forward declaration or tentative defi

Rework codegen emission of globals
- 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.

llvm-svn: 54179

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Fix codegen of chained declarations
- Killed useless CodeGenModule::EmitGlobalVarDeclarator, instead just
recurse on any ScopedDecl.
- Fix for <rdar://problem/6093838>

llvm-svn: 54162

move two more lists of protocols over to use ObjCList<ObjCProtocolDecl>,
simplifying code along the way and fixing a problem and memory leak or two.

llvm-svn: 53876

introduce a new ObjCList templated class and start moving
various objc lists over to it. First up, the protocol list
on ObjCInterfaceDecl.

llvm-svn: 53856

refactor more objc codegen interfaces to pass around selectors so
we don't push strings into LLVM IR and then have to read them back out.

llvm-svn: 52765