llvm-svn: 129276

In particular, don't repeatedly recompute the PIC base live range after rematerialization.

llvm-svn: 129275

Patch by arrowdodger!

llvm-svn: 129274

was always a User.

llvm-svn: 129272

llvm-svn: 129271

an odd number.

llvm-svn: 129270

llvm-svn: 129268

llvm-svn: 129267

--- Reverse-merging r129235 into '.':
D    test/Feature/bb_attrs.ll
U    include/llvm/BasicBlock.h
U    include/llvm/Bitcode/LLVMBitCodes.h
U    lib/VMCore/AsmWriter.cpp
U    lib/VMCore/BasicBlock.cpp
U    lib/AsmParser/LLParser.cpp
U    lib/AsmParser/LLLexer.cpp
U    lib/AsmParser/LLToken.h
U    lib/Bitcode/Reader/BitcodeReader.cpp
U    lib/Bitcode/Writer/BitcodeWriter.cpp

llvm-svn: 129259

llvm-svn: 129248

Patch by arrowdodger!

llvm-svn: 129247

llvm-svn: 129245

Suggested by Maël Hörz.

llvm-svn: 129237

* Add a "landing pad" attribute to the BasicBlock.
* Modify the bitcode reader and writer to handle said attribute.

Later: The verifier will ensure that the landing pad attribute is used in the
appropriate manner. I.e., not applied to the entry block, and applied only to
basic blocks that are branched to via a `dispatch' instruction.

(This is a work-in-progress.)

llvm-svn: 129235

isEqual of its members, not operator==.

llvm-svn: 129233

LLVMCC_EMITIR_FLAG is already either -emit-llvm or -fplugin-arg-dragonegg-emit-ir, so don't add an extra leading -.  Clang doesn't accept --emit-llvm.

llvm-svn: 129232

llvm-svn: 129229

InstAlias doesn't allow matching immediate operands, so we have to write
C++ code to do this.

llvm-svn: 129223

for pointing this out

llvm-svn: 129217

llvm-svn: 129214

And don't append the name over and over again in the loop.

llvm-svn: 129210

llvm-svn: 129209

FIXME: The logo handling in ReleaseNotes.html
llvm-svn: 129208

is an array of structures doesn't imply it's a ConstantArray of
ConstantStruct.

llvm-svn: 129207

llvm-svn: 129203

delete the instruction pointed to by CGP's current instruction
iterator, leading to a crash on the testcase.  This fixes PR9578.

llvm-svn: 129200

Switch lowering probably shouldn't be using FP for this.  This resolves PR9581.

llvm-svn: 129199

it's completely safe to cache the AST across LICM runs even with this fix,
but this fix can't hurt.

llvm-svn: 129198

llvm-svn: 129197

is substantially different than a(b|c)d.  Form the latter regex instead.
This found a few problems in the testsuite, which serves as its test.

llvm-svn: 129196

llvm-svn: 129195

they thought they were, because alternation was expanding
wrong in {{}}'s.

llvm-svn: 129194

llvm-svn: 129193

llvm-svn: 129192

llvm-svn: 129191

where we shrunk the list without updating the end iterator.
By inspection, from PR9639.  

llvm-svn: 129190

It is common for large live ranges to have few basic blocks with register uses
and many live-through blocks without any uses. This approach grows the Hopfield
network incrementally around the use blocks, completely avoiding checking
interference for some through blocks.

llvm-svn: 129188

This doesn't require seeking in the live interval union, so it is very cheap.

llvm-svn: 129187

llvm-svn: 129186

with undef arguments.

llvm-svn: 129185