custom-lower unaligned load and store nodes.

llvm-svn: 157864

llvm-svn: 157863

This is the first of a series of patches which make changes to the backend to
emit unaligned load/store instructions (lwl,lwr,swl,swr) during instruction
selection.

llvm-svn: 157862

the MachineOperand type has a valid offset. 

llvm-svn: 157861

When we timeout or exceed a max number of blocks within an inlined
function, we retry with no inlining starting from a node right before
the CallEnter node. We assume the state of that node is the state of the
program before we start evaluating the call. However, the node pruning
removes this node as unimportant. 

Teach the node pruning to keep the predecessors of the call enter nodes.

llvm-svn: 157860

We should not stop exploring the path after we return from an empty
function.

llvm-svn: 157859

Designate MachThreadList as a transaction coordinator when doing Enable/DisableHardwareWatchpoint on the list of threads.
In case the operation (iterating on the threads and doing enable/disable) fails in the middle, we rollback the already
enabled/disabled threads to their checkpointed states.  When all the threads succeed in enable/disable, we ask each thread
to finsih the transaction and commit the change of the debug state.

llvm-svn: 157858

llvm-svn: 157856

These functions exposed the layout of the underlying data tables as
null-terminated uint16_t arrays.

Use the new MCSubRegIterator, MCSuperRegIterator, and MCRegAliasIterator
classes instead.

llvm-svn: 157855

No functional change intended.

Sorry for the churn. The iterator classes are supposed to help avoid
giant commits like this one in the future. The TableGen-produced
register lists are getting quite large, and it may be necessary to
change the table representation.

This makes it possible to do so without changing all clients (again).

llvm-svn: 157854

llvm-svn: 157853

inject some code in that will run via the "__mod_init_func" method that
registers the gcov "writeout" function to execute at exit time.

The problem is that the "__mod_term_func" method of specifying d'tors is
deprecated on Darwin. And it can lead to some ambiguities when dealing with
multiple libraries.
<rdar://problem/11110106>

llvm-svn: 157852

llvm-svn: 157851

After physreg coalescing was disabled, these functions can't do anything
useful with physregs anyway.

llvm-svn: 157849

MCRegAliasIterator can include Reg itself in the list.

llvm-svn: 157848

Need to figure out how to get Frontend's warning parsing without bringing
in all of Frontend.

llvm-svn: 157847

llvm-svn: 157846

This removes a bit of context from the verifier erros, but reduces code
duplication in a fairly critical part of LLVM and makes dominates easier to test.

llvm-svn: 157845

llvm-svn: 157844

llvm-svn: 157843

show-enabled uses the command line you give it to build a CompilerInstance,
so any flags you pass will be processed as if running clang proper.

llvm-svn: 157842

llvm-svn: 157841

then DestReg is undefined.

llvm-svn: 157840

MCRegAliasIterator can optionally visit the register itself, allowing
for simpler code.

llvm-svn: 157837

Fixed an issue with the current type being set to DIE_IS_BEING_PARSED in the m_die_to_type map by making sure the type pointer is valid. 

llvm-svn: 157836

Added the ability to disassembly GDB remote packets with the python file. This will make it easier to symbolicate the packet log output since we can use the lldb.utils.symbolication package module to symbolicate register values.

llvm-svn: 157835

llvm-svn: 157834

llvm-svn: 157833

llvm-svn: 157832

This patch will optimize the following:
  sub r1, r3
  cmp r3, r1 or cmp r1, r3
  bge L1
TO
  sub r1, r3
  bge L1 or ble L1

If the branch instruction can use flag from "sub", then we can eliminate
the "cmp" instruction.

llvm-svn: 157831

Factor out the expansion code into a function.
This change is to be enabled in clang.

rdar://9877866

llvm-svn: 157830

doesn't dominate a use.

llvm-svn: 157829

CodeGen makes a lot of BitVector copies.

llvm-svn: 157826

llvm-svn: 157824

but different nested name specifiers to quietly clobber each other so
only one remains if they do not refer to the same NamedDecl. Fixes
PR12951.

llvm-svn: 157823

BoundsChecking: fix a bug when the handling of recursive PHIs failed and could leave dangling references in the cache
add regression tests for this problem.

Can already compile & run: PHP, PCRE, and ICU  (i.e., all the software I tried)

llvm-svn: 157822

llvm-svn: 157821

llvm-svn: 157819

This implements codegen support for accesses to thread-local variables
using the local-dynamic model, and adds a clean-up pass so that the base
address for the TLS block can be re-used between local-dynamic access on
an execution path.

llvm-svn: 157818

Also, re-use glob results when looking for failure logs.

llvm-svn: 157817