I don't really like the patterns, but I'm having trouble coming up with a
better way to handle them.

I plan on making other targets use the same legalization
ARM-without-memory-barriers is using... it's not especially efficient, but
if anyone cares, it's not that hard to fix for a given target if there's
some better lowering.

llvm-svn: 138621

to a file.

llvm-svn: 138620

- Reword comments.
- Allow undefined behavior interfering with undefined behavior.
- Add address space checks.

llvm-svn: 138619

SimplifyCFG: If we have a PHI node that can evaluate to NULL and do a load or store to the address returned by the PHI node then we can consider this incoming value as dead and remove the edge pointing there, unless there are instructions that can affect control flow executed in between.

In theory this could be extended to other instructions, eg. division by zero, but it's likely that it will "miscompile" some code because people depend on div by zero not trapping. NULL pointer dereference usually leads to a crash so we should be on the safe side.

This shrinks the size of a Release clang by 16k on x86_64.

llvm-svn: 138618

llvm-svn: 138617

bridged cast.  Noticed by AST inspection by Ted Kremenek!

llvm-svn: 138616

llvm-svn: 138615

llvm-svn: 138614

Also convert stack-addr-ps.cpp to use the analyzer instead of just Sema, now
that it doesn't crash, and extract the stack-block test into another file since
it errors, and that prevents the analyzer from running.

llvm-svn: 138613

globals during codegen.
Fixes <rdar://problem/10017909>.

llvm-svn: 138612

llvm-svn: 138611

llvm-svn: 138610

llvm-svn: 138609

built locally from the source tree.  This is distinguished from self.lldbExec, which
can be used by test/benchmarks to measure the performances against other debuggers.

You can use environment variable LLDB_EXEC to specify self.lldbExec to the dotest.py
test driver, otherwise it is going to be populated with self.lldbHere.

Modify the regular tests under test dir, i.e., not test/benchmarks, to use self.lldbHere.
Also modify the benchmarks tests to use self.lldbHere when it needs an 'lldb' executable
with debug info to do the performance measurements.

llvm-svn: 138608

llvm-svn: 138607

llvm-svn: 138606

scheme, return 'true' so that it doesn't try to run the old EH scheme's fixup on
the new code.

llvm-svn: 138605

This upgrade suffers from the problems of the old EH scheme - i.e., that the
calls to llvm.eh.exception() and llvm.eh.selector() can wander off and get
lost. It makes a valiant effort to reclaim these little lost lambs.

This is a first draft, so it hasn't yet been hooked up to the parser.

llvm-svn: 138602

Much to everyone's surprise, the default constructor for TypeResult produces
an instance with Invalid == false. This seems like a decision we may want to
revisit.

llvm-svn: 138601

Add logging to SymbolFileDWARF::ParseType so that we can tell the type/comp_unit/obj_file were being processed when something goes wrong...

llvm-svn: 138600

emit call results into potentially aliased slots.  This allows us
to properly mark indirect return slots as noalias, at the cost
of requiring an extra memcpy when assigning an aggregate call
result into a l-value.  It also brings us into compliance with
the x86-64 ABI.

llvm-svn: 138599

declated method in the class belongs to a synthesized
property getter/setter. // rdar://10014946

llvm-svn: 138598

Eliminate the -chained-pch flag and all of the frontend and libclang options associated with it. Chained PCH is the only way to build a PCH file that includes another PCH file

llvm-svn: 138597

llvm-svn: 138596

from the given source. -emit-module behaves similarly to -emit-pch,
except that Sema is somewhat more strict about the contents of
-emit-module. In the future, there are likely to be more interesting
differences.

llvm-svn: 138595

changes. // rdar://10015110

llvm-svn: 138594

of a type specifier.

e.g. for:

typedef struct _MyS {
  int foo;
} MyS;

pointing at field 'foo' would give a cursor for the typedef declaration 'MyS'
instead of the field.

llvm-svn: 138593

llvm-svn: 138592

m_selected_tid thread first, check to see if it is valid (might be null if the
thread just exited), and if not select/return the 0th thread instead.

llvm-svn: 138591

Modify the loggings output oracle to fix test suite failure, after the recent change to CommandInterpreter.cpp.

llvm-svn: 138590

llvm-svn: 138589

llvm-svn: 138588

llvm-svn: 138587

a top-level module. This code is still horrible and should go away,
but we're not there yet.

llvm-svn: 138586

AST file, rather than waiting until we finish loading the top-level
AST file.

llvm-svn: 138585

llvm-svn: 138584

to "when loading a particular module" validation, since it was only
validating local information anyway. This shouldn't change anything.

llvm-svn: 138583

and .cpp files, since ASTReader.cpp was getting way too large. No
functionality change.

llvm-svn: 138582

creators to tell us whether something needs GC barriers.
No functionality change.

llvm-svn: 138581

out-of-sync how a file is compiled. Patch by Matthias Kleine!

llvm-svn: 138580