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

llvm-svn: 54366

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

 - <rdar://problem/6122967>

llvm-svn: 54338

llvm-svn: 54322

 - Follows emission scheme used by llvm-gcc, i.e. invent an id for
   each label whose address is taken and replace each indirect goto by
   a switch to each possible target.
 - Currently we emit a switch for each indirect goto instead of
   merging them as llvm-gcc does.

llvm-svn: 54318

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

 - 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

http://llvm.org/viewvc/llvm-project?view=rev&revision=54107

llvm-svn: 54242

different address spaces) for llvm r54195.

llvm-svn: 54241

<rdar://problem/6113085>

llvm-svn: 54237

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

 - 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

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

llvm-svn: 54162

llvm-svn: 54108

llvm-svn: 54107

ASTContext::getCanonicalType instead (PR2189)

llvm-svn: 54105

llvm-svn: 54100

llvm-svn: 54099

are important part of control flow structures.

llvm-svn: 54078

llvm-svn: 54049

llvm-svn: 54048

llvm-svn: 54047

 - Fix multiple issues with the way case ranges were emitted, see test
   cases details about the specific issues.

 - The root issue was not being careful about how basic blocks were
   emitted which led to them being chained together incorrectly,
   resulting in improper control flow.

 - Fixes <rdar://problem/6098585>

llvm-svn: 54006

 - Also cleaned up emission slightly 
 - Inspection of the code revealed several other bugs, however. Case
   ranges are not properly wired and can result in switch cases being
   dropped or even infinite loops. See: <rdar://problem/6098585>

Completes: <rdar://problem/6094119>
llvm-svn: 53975

llvm-svn: 53948

int foo(void) {
  float x[2];
  return x;
}

rdar://6093986

llvm-svn: 53946

llvm-svn: 53928

llvm-svn: 53899

This subsumes Nico Weber's patch and implements bzero in terms
of llvm.memset to match llvm-gcc.

llvm-svn: 53888

This closes <rdar://problem/6080720>, support for __builtin_constant_p
has been filed separately.

llvm-svn: 53885

llvm-svn: 53878

simplifying code along the way and fixing a problem and memory leak or two.

llvm-svn: 53876

llvm-svn: 53866

various objc lists over to it.  First up, the protocol list 
on ObjCInterfaceDecl.

llvm-svn: 53856

 + test case

llvm-svn: 53851

it goes and makes std::strings out of them, which is not 
defined.

llvm-svn: 53843

llvm-svn: 53747

<rdar://problem/6078606>

llvm-svn: 53737

llvm-svn: 53552