llvm-svn: 123491

This is needed to allow an InstAlias for an instruction with an "OptionalDef"
result register (like ARM's cc_out) where you want to set the optional register
to reg0.

llvm-svn: 123490

contain multiple parameter packs at different levels.

llvm-svn: 123488

llvm-svn: 123487

declaration and its assignments.

Found by clang static analyzer.

llvm-svn: 123486

Found by clang static analyzer.

llvm-svn: 123485

Remove this variable (found by clang static analyzer).

llvm-svn: 123484

used; nuke all assignments and its declaration.

llvm-svn: 123483

llvm-svn: 123482

analyzer -cc1 options that are tailored to the
input type.  If the input type is "C++", we should
only run the dead stores checker (for now).  Similarly,
checks specific to Objective-C should only run
on Objective-C Code.

llvm-svn: 123481

llvm-svn: 123480

comments.

llvm-svn: 123479

llvm-svn: 123478

bitcasts, at least in simple cases.  This fixes clang's CodeGenCXX/virtual-base-dtor.cpp

llvm-svn: 123477

Add a possibility to switch between CFI directives- and table-based frame description emission. Currently all the backends use table-based stuff.

llvm-svn: 123476

llvm-svn: 123475

llvm-svn: 123474

llvm-svn: 123473

llvm-svn: 123472

llvm-svn: 123471

it will expand to, if known. Propagate this information throughout Sema.

llvm-svn: 123470

From http://blog.melski.net/tag/debugging-makefiles/.

Example:

[13:14:59] johnny:/Volumes/data/lldb/svn/trunk/test/class_static $ make print-CC
CC=gcc
  origin = file
  flavor = recursive
   value = gcc
[13:15:09] johnny:/Volumes/data/lldb/svn/trunk/test/class_static $ make print-LD
LD=  g++
  origin = file
  flavor = recursive
   value = $(call cxx_linker,$(CC))
[13:15:21] johnny:/Volumes/data/lldb/svn/trunk/test/class_static $ make print-CXX
CXX=  g++
  origin = file
  flavor = recursive
   value = $(call cxx_compiler,$(CC))
[13:15:29] johnny:/Volumes/data/lldb/svn/trunk/test/class_static $

llvm-svn: 123469

disabled in this checkin. Sorry for the large diffs due to
refactoring. New functionality is all guarded by EnableSchedCycles.

Scheduling the isel DAG is inherently imprecise, but we give it a best
effort:
- Added MayReduceRegPressure to allow stalled nodes in the queue only
  if there is a regpressure need.
- Added BUHasStall to allow checking for either dependence stalls due to
  latency or resource stalls due to pipeline hazards.
- Added BUCompareLatency to encapsulate and standardize the heuristics
  for minimizing stall cycles (vs. reducing register pressure).
- Modified the bottom-up heuristic (now in BUCompareLatency) to
  prioritize nodes by their depth rather than height. As long as it
  doesn't stall, height is irrelevant. Depth represents the critical
  path to the DAG root.
- Added hybrid_ls_rr_sort::isReady to filter stalled nodes before
  adding them to the available queue.

Related Cleanup: most of the register reduction routines do not need
to be templates.

llvm-svn: 123468

when handling one-liner commands that contain escaped characters.  In
order to deal with the new namespace/dictionary stuff, the command was
being embedded within a second string, which messed up the escaping.

This fixes the problem by handling one-liners in a different manner, so they
no longer need to be embedded within another string, and can still be
processed in the proper namespace/dictionary context.

llvm-svn: 123467

Debuggers on ELF platforms hook into the runtime linker by monitoring a special
"rendezvous" embedded in the address space of the inferior process.  The exact
location of this structure is filled in by the runtime linker and can be
resolved by locating the DT_DEBUG entry in the processes .dynamic section.  The
new GetImageInfoAddress() method (morally equivalent to
Process::GetImageInfoAddress) provides the mechanism to locate this information.

GetEntryPoint() simply returns the address of the start symbol in the executable
if present.  It is useful to the dynamic loader plugin for ELF systems as this
is the earliest point where LLDB can break and probe the inferiors .dynamic
section and rendezvous structure.  Also, this address can be used in the
computation of the virtual base address for position independent executables.

llvm-svn: 123466

Setting m_private_state_thread to an invalid value when the child thread exits
results in a race condition between calls to ThreadCancel and ThreadJoin.

llvm-svn: 123465

llvm-svn: 123464

llvm-svn: 123463

Addresses rdar://8435969&8852495

llvm-svn: 123462

for "gcc".

llvm-svn: 123461

llvm-svn: 123460

llvm-svn: 123459

the case where the called function has fewer
formal arguments than actual arguments.  This
fixes a crash in the analyzer when doing
function call inlining.

Patch by Zhenbo Xu!

llvm-svn: 123458

llvm-svn: 123457

"promote a bunch of load and stores" logic, allowing the code to
be shared and reused.

llvm-svn: 123456

llvm-svn: 123455

    expression (int)[nil_mutable_array count]

within NSArray_expr() function and expect a return of 0.

llvm-svn: 123454

llvm-svn: 123452

The cxx_compiler function should not blindly return clang++ as the C++ compiler if $(CC) contains "clang".
Instead, it should perform a textual replacement of $(CC) from "clang" to "clang++".  The same is true
for "llvm-gcc" to "llvm-g++" and for "gcc" to "g++".  This way, we keep the path component of the $(CC)
passed in from the user and do not end up with a mixed toolchains with different paths.

Ditto for a newly added function called cxx_linker.

llvm-svn: 123451

expansion in it, we may end up instantiating to an empty
expression-list. In this case, the variable is uninitialized; tweak
the instantiation logic to handle this case. Fixes PR8977.

llvm-svn: 123449