the state of the unwind instructions once the prologue has finished.  If it hits an
early return epilogue in the middle of the function, re-instate the prologue after that
epilogue has completed so that we can still unwind for cases where the flow of control
goes past that early-return.  <rdar://problem/11775059>

Move the UnwindPlan operator== definition into the .cpp file, expand the definition a bit.

Add some casts to a SBCommandInterpreter::HandleCompletion() log statement so it builds without
warning on 64- and 32-bit systems.

llvm-svn: 160337

someone has set our file descriptor to -1 and crash in FD_SET...
<rdar://problem/11653966>

llvm-svn: 160336

 * Treat compound assignment as a use, at Jordy's request.
 * Always add compound assignments into the CFG, so we can correctly diagnose the use in 'return x += 1;'

llvm-svn: 160334

Define a 'null_frag' SDPatternOperator node, which if referenced in an
instruction Pattern, results in the pattern being collapsed to be as-if
'[]' had been specified instead. This allows supporting a multiclass
definition where some instaniations have ISel patterns associated and
others do not.

For example,
multiclass myMulti<RegisterClass rc, SDPatternOperator OpNode = null_frag> {
  def _x : myI<(outs rc:), (ins rc:), []>;
  def _r : myI<(outs rc:), (ins rc:), [(set rc:, (OpNode rc:))]>;
}

defm foo : myMulti<GRa, not>;
defm bar : myMulti<GRb>;

llvm-svn: 160333

llvm-svn: 160332

llvm-svn: 160331

use out of TransferFunctions, and compute it in advance rather than on-the-fly.

This allows us to handle compound assignments with DeclRefExprs on the RHS
correctly, and also makes it trivial to treat const& function parameters as not
initializing the argument. The patch also makes both of those changes.

llvm-svn: 160330

llvm-svn: 160329

<rdar://problem/11818967>

llvm-svn: 160328

Defer checking for registers in the MC AsmMatcher until the after user-defined match classes have been checked.  This allows the creation of MatchClass's that are supersets of a register class.

llvm-svn: 160327

<rdar://problem/11672978> Fixing an issue where an ObjC object might come out without a description because the expression used to obtain it would timeout before running to completion

llvm-svn: 160326

llvm-svn: 160325

This should fix the failure on Windows.

llvm-svn: 160324

llvm-svn: 160323

llvm-svn: 160322

when using Python < 2.7.0.  This is the case on Snow Leopard, where the tools are always
installed in /Developer.  This isn't a proper fix for really figuring out where Xcode
is installed, but should work to fix an obvious problem on Snow Leopard.

llvm-svn: 160321

llvm-svn: 160320

This code is very sensitive to the difference between "columns" as printed
and "bytes" (SourceManager columns). All variables are now named explicitly
and our assumptions are (hopefully) documented as both comment and assertion.

Whether parseable fixits should use byte offsets or Unicode character counts
is pending discussion on the mailing list; currently the implementation uses
bytes (and has no problems on lines containing multibyte characters).
This has been added to the user manual.

<rdar://problem/11877454>

llvm-svn: 160319

Found while investigating PR13330

llvm-svn: 160318

llvm-svn: 160317

Enable the "symbolicate" interactive command to symbolicate all crash logs if no indexes are supplied. This can be handy to use as:

(lldb) script import lldb.macosx.crashlog
(lldb) crashlog -i /tmp/*.crash
% symbolicate --crashed-only

This will symbolicate all of the crash logs only for the crashed thread.

Also print out the crash log index number in the output of the interactive "image" command:

(lldb) script import lldb.macosx.crashlog
(lldb) crashlog -i /tmp/*.crash
% image LLDB.framework
...

This then allows you to symbolicate a crash log by index accurately when you looked for an image of a specific version

llvm-svn: 160316

llvm-svn: 160315

CmpRuns can be used for static analyzer bug report comparison. However,
we want to make sure external users do not rely on the way bugs are
represented (plist files). Make sure that we have a user
friendly/documented API for CmpRuns script.

llvm-svn: 160314

llvm-svn: 160313

uint32_t hi(uint64_t res)
{
        uint_32t hi = res >> 32;
        return !hi;
}

llvm IR looks like this:
define i32 @hi(i64 %res) nounwind uwtable ssp {
entry:
  %lnot = icmp ult i64 %res, 4294967296
  %lnot.ext = zext i1 %lnot to i32
  ret i32 %lnot.ext
}

The optimizer has optimize away the right shift and truncate but the resulting
constant is too large to fit in the 32-bit immediate field. The resulting x86
code is worse as a result:
        movabsq $4294967296, %rax       ## imm = 0x100000000
        cmpq    %rax, %rdi
        sbbl    %eax, %eax
        andl    $1, %eax

This patch teaches the x86 lowering code to handle ult against a large immediate
with trailing zeros. It will issue a right shift and a truncate followed by
a comparison against a shifted immediate.
        shrq    $32, %rdi
        testl   %edi, %edi
        sete    %al
        movzbl  %al, %eax

It also handles a ugt comparison against a large immediate with trailing bits
set. i.e. X >  0x0ffffffff -> (X >> 32) >= 1

rdar://11866926

llvm-svn: 160312

llvm-svn: 160311

Fix an off by one error when handling a packet where our read buffer size truncates the first chunk of the packet 
between the two chars representing the checksum.

<rdar://problem/11882074>

llvm-svn: 160310

llvm-svn: 160309

This function has two versions. The first one is used for a register operand.
The second one is used for an immediate number.

llvm-svn: 160308

The first variant accepts immediate number as the second argument.
The second variant accepts register operand as the second argument.

llvm-svn: 160307

Review by Richard Smith.

llvm-svn: 160306

Make ComputeDemandedBits return a deterministic result when computing an AssertZext value.
In the added testcase the constant 55 was behind an AssertZext of type i1, and ComputeDemandedBits
reported that some of the bits were both known to be one and known to be zero.

Together with Michael Kuperstein <michael.m.kuperstein@intel.com>

llvm-svn: 160305

llvm-svn: 160304

This reverts commit 4ea70107c5e51230e9e60f0bf58a0f74aa4885ea.

llvm-svn: 160303

This reverts commit 600f7a90f3eef4c5108179b43e27cfd9e5de7cdc.

llvm-svn: 160302

This reverts commit e3013202259ed1e006c21817c63cf25d75982721.

llvm-svn: 160301

This reverts commit 11d3457afcda7848448dd7f11b2ede6552ffb9ea.

llvm-svn: 160300

Revert "Target/AMDGPU/R600KernelParameters.cpp: Fix two includes, <llvm/IRBuilder.h> and <llvm/TypeBuilder.h>"

This reverts commit 0258a6bdd30802f5cc0e8e57c8e768fde2aef590.

llvm-svn: 160299

This reverts commit ebc934ba32ee71abbb8f0f2eb6a0fbaa613ba0d2.

llvm-svn: 160298

This reverts commit 29f28bc14ad5a907f5dc849f004fafeec0aab33a.

llvm-svn: 160297