Make it possible to use the linker without destroying the source module. This is so the source module can be linked to multiple other destination modules. For all that used LinkModules() before, they will continue to destroy the source module as before.

This line, and those below, will be ignored--

M    include/llvm/Linker.h
M    tools/bugpoint/Miscompilation.cpp
M    tools/bugpoint/BugDriver.cpp
M    tools/llvm-link/llvm-link.cpp
M    lib/Linker/LinkModules.cpp

llvm-svn: 141606

If you want to tackle adding the testcase, let me know. It's a 4.2MB ELF file
and I'll be happy to mail it to you.

llvm-svn: 141605

Extend lvalue evaluation in ExprConstant.cpp to handle CK_LValueBitCast (which is completely trivial).  PR8836.

llvm-svn: 141604

for 64-bit load and store instructions. Add definitions of 64-bit memory operand
and 16-bit immediate operand.

llvm-svn: 141603

llvm-svn: 141602

alignment parameter "S<size>" that was introduced in r141599.

llvm-svn: 141601

Don't crash in Sema::IsSimplyAccessible if the declaration is not a C++ class member. Fixes PR11108.

llvm-svn: 141600

promoting allocas to preferred alignments that exceed the natural
alignment. This avoids some potentially expensive dynamic stack realignments.

The natural stack alignment is set in target data strings via the "S<size>"
option. Size is in bits and must be a multiple of 8. The natural stack alignment
defaults to "unspecified" (represented by a zero value), and the "unspecified"
value does not prevent any alignment promotions. Target maintainers that care
about avoiding promotions should explicitly add the "S<size>" option to their
target data strings.

llvm-svn: 141599

completion context, in case we end up having no code-completion
callback. Individual instances of this problem are always bugs that
need to be fixed, but it's better to make sure we have initialized
data here.

llvm-svn: 141598

llvm-svn: 141597

llvm-svn: 141596

Recent changes in lldb inlining robustness seem to have fixed it.

llvm-svn: 141595

llvm-svn: 141594

llvm-svn: 141593

llvm-svn: 141592

llvm-svn: 141591

llvm-svn: 141590

block. E.g., if we have:

  movs  r1, r1
  rsb   r1, 0
  movs  r2, r2
  rsb   r2, 0

we don't want this to be converted to:

  movs  r1, r1
  movs  r2, r2
  itt   mi
  rsb   r1, 0
  rsb   r2, 0

PR11107 & <rdar://problem/10259534>

llvm-svn: 141589

to check whether the constructor is accessible. Fixes
<rdar://problem/10202900>.

llvm-svn: 141588

llvm-svn: 141587

Rework construction of CXXForRangeStmt not to recycle the same DeclRefExpr in multiple subexpressions.  This breaks the tree structure
of the AST and completely breaks the CFG invariants.

Patch by Jim Goodnow II and reviewed by Richard Smith!

llvm-svn: 141586

llvm-svn: 141585

and the breakpoint specification for the benchmark purpose.  This is used by TestSteppingSpeed.py
to benchmark the lldb stepping speed.  Without '-e' and 'x' specified, the test defaults to
run the built lldb against itself and stopped on Driver::MainLoop, then stepping for 50 times.

rdar://problem/7511193

llvm-svn: 141584

llvm-svn: 141583

[libclang] Implement ConcurrencyCheck using a recursive mutex to allow re-entrancy in the same thread.
The checks are performed only in DEBUG, it becomes no-op in release mode.

llvm-svn: 141582

llvm-svn: 141581

nonatomic. // rdar://10260017

llvm-svn: 141580

flags as binutils objdump but the output is different, not just in format but
also showing different sections. Compare its results against readelf, not
objdump.

llvm-svn: 141579

Allow targets to expand COPY and other standard pseudo-instructions
before they are expanded with copyPhysReg().

This allows the target to examine the COPY instruction for extra
operands indicating it can be widened to a preferable super-register
copy.  See the ARM -widen-vmovs option.

llvm-svn: 141578

llvm-svn: 141577

llvm-svn: 141576

This should unbreak the picky buildbots.

llvm-svn: 141575

For me, this is a nice convenience. We generally want grep to match
stats output only when the event has occurred.

llvm-svn: 141574

llvm-svn: 141573

llvm-svn: 141572

llvm-svn: 141571

instruction set has no 64-bit SRA support.

llvm-svn: 141570

For example, MachineLICM should not hoist a load that is not guaranteed to be executed.
Radar 10254254.

llvm-svn: 141569

where we can't expand (i.e., multi-level substitution), be sure to
substitute the pack with its level-reduced pack. Fixes PR10230.

llvm-svn: 141568

The difference between isPseudo and isCodeGenOnly is a bit murky, but
isCodeGenOnly should eventually go away.  It is used for instructions
that are clones of real instructions with slightly different properties.

The standard pseudo-instructions never mirror real instructions, so they
are definitely in the isPseudo category.

llvm-svn: 141567