This approach allows adding OS-specific targets/defines/etc. without 
completely breaking unknown subtargets.  No new subtargets yet, although 
I plan to add x86-Linux soon.  Others can add targets that they use as 
needed; adding a new subtarget takes very little code.

Also does some fixups for description strings; a lot of them were 
unspecified.  I think all the ones I added are correct, but 
they're unverified; corrections are welcome.

llvm-svn: 55091

this speeds up the bcreader from 6.67s to 0.12s on a testcase Daniel 
provided.  rdar://6158117

llvm-svn: 55090

llvm-svn: 55089

llvm-svn: 55087

up somehow.

This concludes the series of reorg patches for the target 
implementations.

llvm-svn: 55086

llvm-svn: 55085

instead of requiring an std::vector.

llvm-svn: 55084

llvm-svn: 55083

llvm-svn: 55082

llvm-svn: 55080

namespace out of the isel emitters and into common code.

llvm-svn: 55079

out of X86ISelDAGToDAG.cpp C++ code and into tablegen code.
Among other things, using tablegen for these things makes them
friendlier to FastISel.

Tablegen can handle the case of i8 subregs on x86-32, but currently
the C++ code for that case uses MVT::Flag in a tricky way, and it
happens to schedule better in some cases. So for now, leave the
C++ code in place to handle the i8 case on x86-32.

llvm-svn: 55078

llvm-svn: 55077

class hold a MachineRegisterInfo member, and make the
MachineBasicBlock be passed in to SelectInstructions rather
than the FastISel constructor.

llvm-svn: 55076

llvm-svn: 55075

llvm-svn: 55074

llvm-svn: 55072

llvm-svn: 55071

llvm-svn: 55070

llvm-svn: 55069

 - Drop MethodAttrs parameter to ObjCMethodDecl
 - Call ProcessDeclAttributeList for interface & method decls.

llvm-svn: 55068

llvm-svn: 55067

llvm-svn: 55066

llvm-svn: 55065

This patch moves some code in GRStateManager::RemoveDeadBindings() to EnvironmentManager::RemoveDeadBindings().

llvm-svn: 55064

and the slow-path cases out of line.  This speeds up instcombine
a bit in real world cases.  Patch contributed by m-s.

llvm-svn: 55063

llvm-svn: 55060

llvm-svn: 55059

alignment and volatility information, such as loads and
stores, to reduce the number of integer values added to
the FoldingSetNodeID.

llvm-svn: 55058

llvm-svn: 55057

necessary to use dyn_cast in these predicates.

llvm-svn: 55055

llvm-svn: 55054

llvm-svn: 55053

llvm-svn: 55052

llvm-svn: 55050

llvm-svn: 55049

llvm-svn: 55047

llvm-svn: 55042

cleaned it up a bit, including fixing the definition of va_list; this
shouldn't break anything, but anyone using Sparc should watch for 
regressions.

llvm-svn: 55041

 - UsualUnaryConversions takes an Expr *& and may modify its argument,
   this broke when it was refactored into Sema::CheckCastTypes. This
   meant that we were missing implicit casts in some places.
 - Seems pretty sad that this got through our tests.

llvm-svn: 55039