We now store the Register and Offset directly. MachineLocation is gone (from
this file)!

llvm-svn: 168536

This untangles the switch cases of the old Move and RelMove opcodes a bit
and makes it clear how to add new instructions.

llvm-svn: 168534

llvm-svn: 168533

Give MCCFIInstruction a single, private constructor and add helper static
methods that create each type of cfi instruction. This is is preparation
for changing its representation. The representation with a pair
MachineLocations older than MC and has been abused quiet a bit to support
more cfi instructions.

llvm-svn: 168532

Roman Divacky. I just added the testcase.

llvm-svn: 168520

llvm-svn: 168511

I discovered a few more missing functions while migrating optimizations
from the simplify-libcalls pass to the instcombine (I already added some
in r167659).

llvm-svn: 168501

llvm-svn: 168448

llvm-svn: 168445

so that I can (someday) call SE->getSCEV without complaint.
No semantic change intended.

Patch from Preston Briggs <preston.briggs@gmail.com>.

llvm-svn: 168391

llvm-svn: 168374

definition did.

The last part of PR14324.

llvm-svn: 168363

+ Take account of clobbers
+ Give outputs priority over inputs since they happen later.

llvm-svn: 168360

When code deletes the context, the AttributeImpls that the AttrListPtr points to
are now invalid. Therefore, instead of keeping a separate managed static for the
AttrListPtrs that's reference counted, move it into the LLVMContext and delete
it when deleting the AttributeImpls.

llvm-svn: 168354

llvm-svn: 168344

The rationale is to get YAML filenames in diagnostics from
yaml::Stream::printError -- currently the filename is hard-coded as
"YAML" because there's no buffer information available.

Patch by Kim Gräsman!

llvm-svn: 168341

llvm-svn: 168338

llvm-svn: 168304

This patch moves the isInlineViable function from the InlineAlways pass into
the InlineCostAnalyzer and then changes the InlineCost computation to use that
simple check for always-inline functions. All the special-case checks for
AlwaysInline in the CallAnalyzer can then go away.

llvm-svn: 168300

llvm-svn: 168299

llvm-svn: 168263

Add a new function to ConstantExpr - getAsInstruction. This returns its Instruction* corollary, which may be useful if a user
wishes to transform a ConstantExpr so that one of its operands is no longer constant.

llvm-svn: 168262

llvm-svn: 168218

They are just useless and prevent SmallVector from picking an optimized codepath
for memcpyable elements.

llvm-svn: 168211

llvm-svn: 168208

llvm-svn: 168202

Technically this is still a layering violation but it's header-only which makes
it less harmful. No functionality change.

llvm-svn: 168173

llvm-svn: 168166

Interface changes to allow RuntimeDyld memory managers to set memory permissions after an object has been loaded.

llvm-svn: 168114

llvm-svn: 168103

positive.

In this particular case, R6 was being spilled by the register scavenger when it
was in fact dead.  The isUsed function reported R6 as used because the R6_R7
alias was reserved (due to the fact that we've reserved R7 as the FP).  The
solution is to only check if the original register (i.e., R6) isReserved and
not the aliases.  The aliases are only checked to make sure they're available.

The test case is derived from one of the nightly tester benchmarks and is rather
intractable and difficult to reproduce, so I haven't included it.
rdar://12592448

llvm-svn: 168054

Similarly to several recent fixes throughout the code replace std::map use with the MapVector.
Add find() method to the MapVector.

llvm-svn: 168051

llvm-svn: 168049

llvm-svn: 168042

For global variables that get the same value stored into them
everywhere, GlobalOpt will replace them with a constant. The problem is
that a thread-local GlobalVariable looks like one value (the address of
the TLS var), but is different between threads.

This patch introduces Constant::isThreadDependent() which returns true
for thread-local variables and constants which depend on them (e.g. a GEP
into a thread-local array), and teaches GlobalOpt not to track such
values.

llvm-svn: 168037

The new OpenCL SPIR extension spec will define separate SPIR for 32 and 64 bit architectures.

llvm-svn: 168036

llvm-svn: 168025

llvm-svn: 168009

Add doInitialization and doFinalization methods to ModulePass's, to allow them to be re-initialized and reused on multiple Module's.

Patch by Pedro Artigas.

llvm-svn: 168008

Approved by Chris Lattner.

llvm-svn: 167984