llvm-svn: 160740

When a live range splits into multiple connected components, we would
arbitrarily assign <undef> uses to component 0. This is wrong when the
use is tied to a def that gets assigned to a different component:

  %vreg69<def> = ADD8ri %vreg68<undef>, 1

The use and def must get the same virtual register.

Fix this by assigning <undef> uses to the same component as the value
defined by the instruction, if any:

  %vreg69<def> = ADD8ri %vreg69<undef>, 1

This fixes PR13402. The PR has a test case which I am not including
because it is unlikely to keep exposing this behavior in the future.

llvm-svn: 160739

llvm-svn: 160738

llvm-svn: 160737

Add a new option, -reader which will select formats other than YAML for
reading.  YAML is still the default.

llvm-svn: 160736

Before accessing a node as a ConstandSDNode, make sure it actually is one.
No testcase of non-trivial size.

rdar://11948669

llvm-svn: 160735

Include <undef> operands and virtual registers after leaving SSA form.

llvm-svn: 160734

make all Emit*() functions consult the TargetLibraryInfo information before creating a call to a library function.
Update all clients to pass the TLI information around.
Previous draft reviewed by Eli.

llvm-svn: 160733

with subsequent changes to use lower level interfaces done by me.

llvm-svn: 160732

llvm-svn: 160731

llvm-svn: 160730

llvm-svn: 160728

80 char lines.

llvm-svn: 160726

to pop.

llvm-svn: 160725

change.

llvm-svn: 160724

llvm-svn: 160723

llvm-svn: 160722

cmake for compiler-rt: add a function to set output dirs for compiler runtimes equal to directory used by Clang driver. Use it for ASan runtime. Also, make sure that ASan unit tests depend on the ASan runtime.

llvm-svn: 160721

llvm-svn: 160720

[asan] don't return from a never-return function. fix a test that had a chain of bugs instead of just one

llvm-svn: 160719

llvm-svn: 160718

Make git not delete some empty dirs. Otherwise a git checkout would be different from an svn checkout.

llvm-svn: 160717

and became necessary with the change to require BindableMatchers
for binding.

Also fixes PR 13445: "hasSourceExpression only works for implicit casts".

llvm-svn: 160716

I saw the case it XPASSes.

llvm-svn: 160715

behaviour that might be exploited one day.

llvm-svn: 160714

Users may define it to override the default ASan options.
This function has to be marked with __attribute__((no_address_safety_analysis)), because it is called before ASan is fully initialized.

Add an output test checking the __asan_default_options functionality.

llvm-svn: 160712

of an array element (rather than at the beginning of the element) and extended
into the next element, then the load from the second element was being handled
wrong due to incorrect updating of the notion of which byte to load next.  This
fixes PR13442.  Thanks to Chris Smowton for reporting the problem, analyzing it
and providing a fix.

llvm-svn: 160711

llvm-svn: 160709

Next steps are adding information about types & source location handling.

llvm-svn: 160708

llvm-svn: 160707

llvm-svn: 160706

Rather than adding a ContainsUnexpandedParameterPack bit to essentially every
AST node, we tunnel the bit directly up to the surrounding lambda expression
when we reach a context where an unexpanded pack can not normally appear.
Thus any statement or declaration within a lambda can now potentially contain
an unexpanded parameter pack.

llvm-svn: 160705

llvm-svn: 160704

 
The long branch pass (fixed in r160601) no longer uses the global base register
to compute addresses of branch destinations, so it is not necessary to reserve
a slot on the stack.

llvm-svn: 160703

llvm-svn: 160702

llvm-svn: 160701

llvm-svn: 160700

This tests for the ability to include a "message" field in availability
attributes, like so:

  extern void ATSFontGetName(const char *oName)
    __attribute__((availability(macosx,introduced=8.0,deprecated=9.0,
                                message="use CTFontCopyFullName")));

This was actually supported in Clang 3.1, but we got a request for a
__has_feature so that header files can use this more safely. It's
unfortunate that the 3.1 release doesn't include this, however.

<rdar://problem/11886458>

llvm-svn: 160699

llvm-svn: 160698

llvm-svn: 160697