review feedback from Chris quite a while ago. No functionality
change.

llvm-svn: 49348

llvm-svn: 49347

Removed llvm-upgrade from documentations.

llvm-svn: 49346

in both time and memory savings for GVN.  For example, one testcase went from 10.5s to 6s with
this patch.

llvm-svn: 49345

llvm-svn: 49344

llvm-svn: 49343

llvm-svn: 49339

llvm-svn: 49338

needs to be fixed here - a previous commit made sure
that intrinsics always get the right attributes.
So remove no-longer needed code, and while there use
Intrinsic::getDeclaration rather than getOrInsertFunction. 

llvm-svn: 49337

intrinsics.  Fix up the argument type (should
be i8*, was an array*).

llvm-svn: 49336

right parameter attributes no matter how they
are obtained.

llvm-svn: 49335

by Dan Gohman is fixed.

llvm-svn: 49330

allocations, which GVN can't optimize anyways.

llvm-svn: 49329

llvm-svn: 49317

nounwind.  When such calls are inlined into something
else that is invoked, they were getting changed to invokes,
which is badness.

llvm-svn: 49299

llvm-svn: 49293

llvm-svn: 49285

llvm-svn: 49284

llvm-svn: 49283

llvm-svn: 49282

llvm-svn: 49281

If it cannot be expanded, it will keep the old behaviour and try to shrink the constant.
Part of enhancement for PR2191.

llvm-svn: 49280

Specifically, introduction of XXX::Create methods
for Users that have a potentially variable number of
Uses.

llvm-svn: 49277

giuma.cordes@gmail.com

llvm-svn: 49276

llvm-svn: 49274

llvm-svn: 49248

llvm-svn: 49247

2. Coalescer can now create an interesting situation where a register def can
   reaches itself without being killed.

llvm-svn: 49246

llvm-svn: 49244

before an invoke.  Failure to do this causes references in
the landing pad to variables that were not set.  Fixes
g++.dg/eh/delayslot1.C
g++.dg/eh/fp-regs.C
g++.old-deja/g++.brendan/eh1.C

llvm-svn: 49243

llvm-svn: 49218

is not needed.

llvm-svn: 49210

tools.  This is currently only enabled on the mac, but could easily be
supported by other hosts that are interested.

llvm-svn: 49207

llvm-svn: 49206

llvm-svn: 49198

llvm-svn: 49197

Dale fixed EH.

llvm-svn: 49192

llvm-svn: 49190

Removed a deleted file from the VStudio System project.  Also added custom build commands to engage 64 bit assembler for compilation callback on 64 bit configurations only.

llvm-svn: 49188

if some functions don't have debug info, we were outputing the same label at the start of each of those functions.  This makes assemblers unhappy

llvm-svn: 49176