Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.

llvm-svn: 36652

llvm-svn: 36632

llvm-svn: 36444

llvm-svn: 36441

llvm-svn: 36299

llvm-svn: 36287

llvm-svn: 36272

llvm-svn: 36271

llvm-svn: 36258

llvm-svn: 36248

llvm-svn: 36247

llvm-svn: 36205

llvm-svn: 36199

target for tabs checking.

llvm-svn: 36146

llvm-svn: 36090

Remove ImmediateDominator analysis.  The same information can be obtained from DomTree.  A lot of code for
constructing ImmediateDominator is now folded into DomTree construction.

This is part of the ongoing work for PR217.

llvm-svn: 36063

llvm-svn: 36017

llvm-svn: 35950

series, I promise.

llvm-svn: 35848

llvm-svn: 35843

change.

llvm-svn: 35842

llvm-svn: 35841

llvm-svn: 35839

isReachableFromEntry
test to ETForest to factor a common test out of code.

llvm-svn: 35786

llvm-svn: 35757

ETForest updating mechanisms don't work as I thought they did.  These changes
will be reapplied once the issue is worked out.

llvm-svn: 35741

continuing work on PR1171.

llvm-svn: 35730

llvm-svn: 35729

work for PR 1171.

llvm-svn: 35728

on PR1171.

llvm-svn: 35726

This is the beginning of work for PR1171.

llvm-svn: 35720

llvm-svn: 35576

llvm-svn: 35370

llvm-svn: 35265

Use ETForest instead of DominatorSet.

llvm-svn: 35221

can collide with system defined names.  Windows defines _BB, for example.

llvm-svn: 35066

llvm-svn: 35057

llvm-svn: 35053

llvm-svn: 35052

llvm-svn: 34856