of a pointer/int pair instead of a manually bitmangled pointer.
This forces clients to think a little more about checking the 
appropriate pieces and will be useful for internal 
implementation improvements later.

I'm not particularly happy with this.  After going through this
I don't think that the clients of memdep should be exposed to
the internal type at all.  I'll fix this in a subsequent commit.

This has no functionality change.

llvm-svn: 60230

llvm-svn: 60229

llvm-svn: 60228

llvm-svn: 60227

bitmangling.

llvm-svn: 60226

llvm-svn: 60225

pointer and integer type to be used.

llvm-svn: 60224

properly updates the reverse dependency map when it installs updated 
dependencies for instructions that depend on the removed instruction.

llvm-svn: 60222

llvm-svn: 60221

llvm-svn: 60220

no functionality change.

llvm-svn: 60219

llvm-svn: 60218

llvm-svn: 60217

This shows the root problem behind PR3141.

llvm-svn: 60216

but it doesn't make any sense at all.

Also make the method const, private, and fit in 80 cols while we're at it.

llvm-svn: 60215

llvm-svn: 60214

llvm-svn: 60213

llvm-svn: 60211

predecessor is itself.  This doesn't make sense, and this is
a dead infinite loop anyway.

llvm-svn: 60210

gcc 4.4 (due to use of sprintf).

llvm-svn: 60209

being both a namespace and a variable name.

llvm-svn: 60208

When initialized, the index of the ElementRegion was unsigned. But the index
value of the ArraySubscriptExpr is signed. This inconsistency caused the value
of the array element retrieved to be UnknownVal despite it was initialized to
symbolic.

This is only a hack. Real fix of this problem is required.

llvm-svn: 60207

llvm-svn: 60206

llvm-svn: 60205

the ConstraintManager can print its internal state before its solver instance is
destroyed.

llvm-svn: 60204

formulation that doesn't require set lookups or scanning a set.

llvm-svn: 60203

nothing to do with dead instruction elimination.  No tests in
dejagnu depend on this, so I don't know what it was needed for.

llvm-svn: 60202

elimination to use more modern infrastructure.  Also do a bunch
of small cleanups.

llvm-svn: 60201

llvm-svn: 60200

Support multiple compilation graph definitions. Not terribly useful, but makes the code more generic.

llvm-svn: 60199

llvm-svn: 60198

llvm-svn: 60197

RecursivelyDeleteTriviallyDeadInstructions.

llvm-svn: 60196

making it use RecursivelyDeleteTriviallyDeadInstructions to do
the heavy lifting.

llvm-svn: 60195

PHIs dead if they are single-value.

llvm-svn: 60194

return a list of deleted instructions.

llvm-svn: 60193

llvm-svn: 60192

wrappers around the interesting code and use an obscure iterator
abstraction that dates back many many years.

Move EraseDeadInstructions to Transforms/Utils and name it
RecursivelyDeleteTriviallyDeadInstructions.

llvm-svn: 60191

llvm-svn: 60190

llvm-svn: 60189