llvm-svn: 79404

llvm-svn: 79403

gcc-4.4 was optimizing away comparisons against SimpleValueType when
it was compared to a value larger than the largest value in the enum.
This patch works around it by adding one extra item to the enum so
that these tests will now be valid.

llvm-svn: 79401

llvm-svn: 79397

llvm-svn: 79388

when trying to run opt in parallel.  This lets parallel opt crunch 403.gcc in about a third
of the time.

llvm-svn: 79387

llvm-svn: 79386

 - The base class implementation is correct.

llvm-svn: 79385

before performing optimizations based on constant string values.

llvm-svn: 79384

just falling through the end.

llvm-svn: 79383

buffer.

llvm-svn: 79382

SRA_PARTS, as is done for SRL, SHL, and SRA.

llvm-svn: 79380

 - Kill off begin(), end(), and iterator. It isn't clear what these
   mean. Instead provide getBufferStart(), which can be used with
   GetNumBytesInBuffer to the same effect.

 - Update ComputeColumn to take arguments for the buffer to scan, this
   simplifies the implementation of write_impl substantially.

 - This should also fix possible problems with the scanning pointer pointing
   outside of the current raw_ostream buffer.

llvm-svn: 79379

llvm-svn: 79378

Add patterns and instruction encoding information.
Add custom lowering to deal with hardwired return register of
uncertain type (xmm0).

llvm-svn: 79377

llvm-svn: 79376

div/mods in 32-bits.

llvm-svn: 79375

- Drop the Candidates argument and fix all callers. Now that RegScavenger
  tracks available registers accurately, there is no need to restict the
  search.
- Make sure that no aliases of the found register are in use. This was a potential bug.

llvm-svn: 79369

llvm-svn: 79368

allow underlying stream classes to decline buffering. After
calling SetBuffered(), re-check whether the stream is Unbuffered
in order to handle the case where the underlying stream has
declined buffering.

llvm-svn: 79362

llvm-svn: 79361

llvm-svn: 79359

Make various changes suggested by Chris.

llvm-svn: 79358

llvm-svn: 79357

llvm-svn: 79356

Privatize the ValueHandle global map.  Because this is used so heavily throughout the code base, locking all accesses to
it is not practical performance-wise.

llvm-svn: 79355

llvm-svn: 79354

llvm-svn: 79353

of LDFLAGS.

llvm-svn: 79352

llvm-svn: 79351

llvm-svn: 79350

llvm-svn: 79348

llvm-svn: 79347

llvm-svn: 79346

llvm-svn: 79345

TargetData is not present. It still uses TargetData when available.
This generalization also fixed some limitations in the TargetData
case; the attached testcase covers this.

llvm-svn: 79344

llvm-svn: 79343

required on some platforms for building shared libraries that link to
the LLVM libraries.

llvm-svn: 79339

remove RemoveDuplicateSuccessor, as it is no longer necessary, and because
it breaks assumptions made in
MachineBasicBlock::isOnlyReachableByFallthrough.

Convert test/CodeGen/X86/omit-label.ll to FileCheck and add a testcase
for PR4732.

test/CodeGen/Thumb2/thumb2-ifcvt2.ll sees a diff with this commit due to
it being bugpoint-reduced to the point where it doesn't matter what the
condition for the branch is.

Add some more interesting code to
test/CodeGen/X86/2009-08-06-branchfolder-crash.ll, which is the testcase
that originally motivated the RemoveDuplicateSuccessor code, to help
verify that the original problem isn't being re-broken.

llvm-svn: 79338

unruly indices for arrays that are members of structs.

llvm-svn: 79337