llvm-svn: 44218

	call x86_fastcallcc void @func( i32* %X, i64 0 )
not:
	callx86_fastcallcc  void @func( i32* %X, i64 0 )

This fixes Codegen/X86/fast-cc-merge-stack-adj.ll

llvm-svn: 44217

llvm-svn: 44216

llvm-svn: 44215

drops a dependency on flex and lets us make future progress more 
easily.  Yay for 2 fewer .cvs files to make silly conflicts with.

llvm-svn: 44213

llvm-svn: 44212

llvm-svn: 44211

one dependency on flex and gets rid of two ".cvs" files.

llvm-svn: 44210

Now that we are passing back "free standing decls", make sure -ast-dump works like -ast-print.
Also added a cast to be safe...

llvm-svn: 44209

Make sure Sema::ParsedFreeStandingDeclSpec() returns a decl representing the type.
Adding basic printing to StmtPrinter::PrintRawDecl().

llvm-svn: 44208

llvm-svn: 44204

http://llvm.org/viewvc/llvm-project?rev=44199&view=rev

This patch completely broke serialization due to an invariant I assumed but
did not hold. The assumed invariant was that all pointer IDs emitted by a call
to BatchEmitOwnedPtrs would be consecutive. This is only the case if there has
been no forward references to an owned pointer (and hence already registered
with the Serializer object).

llvm-svn: 44203

fix an occasional nonrepeatable bootstrap failure we've
been seeing on Darwin.

llvm-svn: 44202

PR 1804.

llvm-svn: 44201

Deserialize::ReadDiffPtrID to read and emit bools instead of unsigned
integers. This should result in a nice space optimization once we have
"auto-abbreviation" generation in place.

llvm-svn: 44200

SerializedPtrID, followed by the *differences* in IDs. The big idea is that
most IDs will be just be 1 off from the previous (either that or NULL, which
we encode as a difference if 0), so this will greatly reduce the encoding
space for extra IDs to just 1 bit per pointer.

So far this optimization reduces serialization of Carbon.h by only 1%, but
we aren't using any abbreviations now in the Bitcode file to properly take
advantage of this optimization.

llvm-svn: 44199

When a live interval is being spilled, rather than creating short, non-spillable
intervals for every def / use, split the interval at BB boundaries. That is, for
every BB where the live interval is defined or used, create a new interval that
covers all the defs and uses in the BB.

This is designed to eliminate one common problem: multiple reloads of the same
value in a single basic block. Note, it does *not* decrease the number of spills
since no copies are inserted so the split intervals are *connected* through
spill and reloads (or rematerialization). The newly created intervals can be
spilled again, in that case, since it does not span multiple basic blocks, it's
spilled in the usual manner. However, it can reuse the same stack slot as the
previously split interval.

This is currently controlled by -split-intervals-at-bb.

llvm-svn: 44198

llvm-svn: 44197

llvm-svn: 44196

orthogonal to the main problem there)

llvm-svn: 44194

llvm-svn: 44193

own the decl they reference if it is a FunctionDecl.  Note that his
ownership property is still considered a hack, and should be fixed.

llvm-svn: 44192

query for the number of parameters for FunctionDecls that had type
FunctionTypeNoProto.

llvm-svn: 44191

This fixes a bug reported by Seo Sanghyeon.

This was meant to be committed yesterday, but the commit failed.  doh.

llvm-svn: 44190

llvm-svn: 44189

llvm-svn: 44188

llvm-svn: 44187

llvm-svn: 44183

Codegen bits and llvm-gcc support will follow.

llvm-svn: 44182

llvm-svn: 44181

llvm-svn: 44180

llvm-svn: 44179

llvm-svn: 44178

llvm-svn: 44177

Some FunctionDecls do not appear at the top-level or are owned by a DeclStmt.
In calls to implicitly defined functions, a FunctionDecl is created, but only
the DeclRefExprs reference them. Since an implicitly defined function may be
called multiple times, there is no clear ownership model for such objects.

Temporary solution: when serializing out DeclRefExprs, emit an ownership bit
for the Decl. This bit is determined by querying the serializer to see if the
Decl has already been serialized. If it hasn't, emit the Decl as an owned
pointer.

I repeat: this is a hack.  This should be fixed.

llvm-svn: 44176

Added missing deserialization case in Stmt::Create() switch statement.

llvm-svn: 44175

llvm-svn: 44174

No need to forward declare definition of objc_super...

llvm-svn: 44173

Finish up variadic methods/messages.

llvm-svn: 44172

Implement support for variadic methods (work in progress).

llvm-svn: 44171