use MachineBasicBlocks.  To do this, we traverse the Machine CFG instead of
the LLVM CFG, which is also *MUCH* more efficient by having fewer levels of
indirections and mappings.

llvm-svn: 13301

llvm-svn: 13297

functions with wrappers that either take or return size_ts.

llvm-svn: 13296

llvm-svn: 13291

is only used by a cast, and the casted type is the same size as the original
allocation, it would eliminate the cast by folding it into the allocation.

Unfortunately, it was placing the new allocation instruction right before
the cast, which could pull (for example) alloca instructions into the body
of a function.  This turns statically allocatable allocas into expensive
dynamically allocated allocas, which is bad bad bad.

This fixes the problem by placing the new allocation instruction at the same
place the old one was, duh. :)

llvm-svn: 13289

llvm-svn: 13264

llvm-svn: 13263

* Make contained ostream pointer, not reference
* Allow setting of that ostream via setStream()

class CachedWriter:
* setStream() in turn calls setStream() on the AssemblyWriter

llvm-svn: 13247

llvm-svn: 13243

llvm-svn: 13228

* Add Module accessor to AssemblyWriter

llvm-svn: 13227

In InsertFPRegKills(), just check the MachineBasicBlock for successors
instead of its corresponding BasicBlock.

llvm-svn: 13213

LLVM CFG when trying to find the successors of BB.

llvm-svn: 13212

llvm-svn: 13211

llvm-svn: 13204

llvm-svn: 13190

patch was graciously contributed by Vladimir Prus.

llvm-svn: 13185

llvm-svn: 13175

graph.

llvm-svn: 13173

llvm-svn: 13172

renamed since they were last spiffed up, or they just never had proper comments
in the first place.

llvm-svn: 13148

llvm-svn: 13147

Include SparcV9RegisterInfo.h.
Add a getRegisterInfo() accessor and SparcV9RegisterInfo instance, just like
on the X86 target.

llvm-svn: 13146

functions for now). This automatically turns on the printing of machine
registers using their own real names, instead of goofy things like %mreg(42),
and allows us to migrate code incrementally to the new interface as we see fit.

The register file description it uses is hand-written, so that the register
numbers will match the ones that the SparcV9 target already uses.
Perhaps someday we'll tablegen it.

llvm-svn: 13145

* Commandline option (for now) controls that flag that is passed in

llvm-svn: 13141

llvm-svn: 13136

still room for cleanup, but at least the code modification is out of the
analysis now.

llvm-svn: 13135

IndVars pass, not part of SCEV *analysis*.

llvm-svn: 13134

This prepares us to be able to de-virtualize and de-abstract it, and
take the register allocator bits out and move them into the register allocator
proper...

llvm-svn: 13127

llvm-svn: 13126

documentation that this module needs to be made independent of the
register file description of the current target.

llvm-svn: 13125

being tested on X86, as per Chris's request.

llvm-svn: 13124

because 1) the first instruction might not be a call site, and
2) CS and SF.Caller were not getting set to point to the new call site
anyway (resulting in a crash on e.g. call %llvm.memset).

llvm-svn: 13122

llvm-svn: 13120

Use emitWordAt() to emit forward-branch fixups.

llvm-svn: 13119

llvm-svn: 13118

am not so sure about the file printer emitter, but the debug emitter change
should be harmless.)

llvm-svn: 13117

the function instead of isolating it. This also means the condition is reversed.

llvm-svn: 13112

the Module. The default behavior keeps functionality as before: the chosen
function is the one that remains.

llvm-svn: 13111

llvm-svn: 13108