llvm-svn: 169086

llvm-svn: 169085

Fixes PR14465.

Differential Revision: http://llvm-reviews.chandlerc.com/D148

llvm-svn: 169084

llvm-svn: 169083

that kexts were newly added.

The Darwin userland dynamic loader provides lldb with a list of 
newly-added or newly-removed binaries but in the kernel case we
only know that something has changed.  DynamicLoaderDarwinKernel
really needs to maintain its own persistent list of kexts that 
it has been notified about (most importantly, it will not detect
kext unlods) but for now we'll at least avoid re-adding an already
present kext.

<rdar://problem/12658487>, <rdar://problem/12658487> 

llvm-svn: 169082

llvm-svn: 169081

64-bit kernel in ProcessGDBRemote.
<rdar://problem/12657369>

llvm-svn: 169080

Also check in a case to repeat the issue, on which 'opt -globalopt' consumes 1.6GB memory.
The big memory footprint cause is that current GlobalOpt one by one hoists and stores the leaf element constant into the global array, in each iteration, it recreates the global array initializer constant and leave the old initializer alone. This may result in many obsolete constants left.
For example:  we have global array @rom = global [16 x i32] zeroinitializer
After the first element value is hoisted and installed:   @rom = global [16 x i32] [ 1, 0, 0, ... ]
After the second element value is installed:  @rom = global [16 x 32] [ 1, 2, 0, 0, ... ]        // here the previous initializer is obsolete
...
When the transform is done, we have 15 obsolete initializers left useless.

llvm-svn: 169079

llvm-svn: 169078

llvm-svn: 169077

Add caching to the MemoryMappingLayout class on Linux. This is necessary for the cases when a sandbox prevents ASan from reading the mappings
from /proc/self/maps.
The mappings are currently being cached on each access to /proc/self/maps. In the future we'll need to add an API that allows the client to notify ASan about the sandbox.

llvm-svn: 169076

an implicit special member, rather than sometimes using '!hasDeclared<special
member>'. No functionality change.

llvm-svn: 169075

2012-11-30-misched-dbg.ll had crashed. Then (MDNode)N was "!{}".
I am not sure it would be ill-formed or not.

llvm-svn: 169074

 - Each macro instantiation introduces a new buffer, and FindBufferForLoc() is
   linear, so previously macro instantiation could be N^2 for some pathological
   inputs.

llvm-svn: 169073

Assertion failed: (TopRPTracker.getPos() == RegionBegin && "bad initial Top tracker").
rdar://12790302.

llvm-svn: 169072

Assertion failed: (VNI && "No value to read by operand")
rdar://12790267.

llvm-svn: 169071

Assertion failed: (itr != mi2iMap.end() && "Instruction not found in maps.")
rdar://12777252.

llvm-svn: 169070

assert (RemainingInstrs == 0 && "Instruction count mismatch!")

rdar://12776937.

llvm-svn: 169069

Fixes a crash printing diagnostics on the gcc testsuite, and also makes
diagnostic range printing print nicer results for token pastes.

llvm-svn: 169068

The TwoAddressInstructionPass takes the machine code out of SSA form by
expanding REG_SEQUENCE instructions into copies. It is no longer
necessary to rewrite the registers used by a REG_SEQUENCE instruction
because the new coalescer algorithm can do it now.

REG_SEQUENCE is just converted to a sequence of sub-register copies now.

llvm-svn: 169067

llvm-svn: 169066

scope when dealing with nested blocks. Fixes <rdar://problem/12778708>.

llvm-svn: 169065

llvm-svn: 169064

interpreter.

<rdar://problem/12657742>

llvm-svn: 169063

whether the current frame is in a C++/Objective-C
class or instance method.

llvm-svn: 169062

part of the compile unit CU and start separating out information into
the various sections that will be pulled out later.

WIP.

llvm-svn: 169061

MachineCopyPropagation doesn't understand super-register liveness well
enough to be able to remove implicit defs of super-registers.

This fixes a problem in ARM/2012-01-26-CopyPropKills.ll that is exposed
by an future TwoAddressInstructionPass change. The KILL instructions are
removed before the machine code is emitted.

llvm-svn: 169060

Don't emit a warning with an input/output parameter. We assume the user knows what they're doing here.

llvm-svn: 169059

llvm-svn: 169058

state so that all of the various clones end up rendering their
diagnostics into the same serialized-diagnostics file. This is
important when we actually want failures during module build to be
reported back to the translation unit that tried to import the
not-yet-built or out-of-date module. <rdar://problem/12565727>

llvm-svn: 169057

llvm-svn: 169056

llvm-svn: 169055

the output size is greater than the register size. No truncation occurs with
those. Reword warning to make it clearer what's the problem is.

llvm-svn: 169054

llvm-svn: 169053

llvm-svn: 169052

<rdar://problem/12780159>.

llvm-svn: 169051

llvm-svn: 169050

reversed the logic of the log2 detection routine to reduce the number of nested ifs

llvm-svn: 169049

llvm-svn: 169048

uses. APFloat::convert() takes the pointer to the fltSemantics
variable, which is later accessed it in ~APFloat() desctructor.
That is, semantics must still be alive at the moment we delete
APFloat.

Found by experimental AddressSanitizer use-after-scope checker.

llvm-svn: 169047