This simplifies MCRegisterInfo and shrinks the target descriptions a bit
more.

llvm-svn: 160758

encounter an invoke of an allocation function. This should fix the dragonegg
bootstrap. Testcase to follow, later.

llvm-svn: 160757

calling functions.  This is necessary on Mac OS X, since bad things can happen if you set
the registers of a thread that's sitting in a kernel trap.

<rdar://problem/11145013>

llvm-svn: 160756

TwoAddressInstructionPass.

The generated code for Atom has a different code sequence. This is realted
to commit r160749.

llvm-svn: 160755

to fix all the issues.  Currently the code is essentially unmaintained and buggy, and
needs major revision (with coupled enhancements to the analyzer core).

llvm-svn: 160754

Beckham <verena@codeplay.com>.  Reviewed by Jim Grosbach.

llvm-svn: 160753

rdar://11949066

llvm-svn: 160752

original commit msg:
MemoryBuiltins: add support to determine the size of strdup'ed non-constant strings

llvm-svn: 160751

-iwithprefixbefore, and -isystem options, per Matt's suggestion.
rdar://11949066

llvm-svn: 160750

It is redundant; RegisterCoalescer will do the remat if it can't eliminate
the copy. Collected instruction counts before and after this. A few extra
instructions are generated due to spilling but it is normal to see these kinds
of changes with almost any small codegen change, according to Jakob.

This also fixed rdar://11830760 where xor is expected instead of movi0.

llvm-svn: 160749

Report/patch inspiration by Olaf Krzikalla.

llvm-svn: 160744

 -Strip -iquote and -M options.
 -Quote -D options to avoid problems with command line macros that include
  parens.
rdar://11949066

llvm-svn: 160743

llvm-svn: 160742

llvm-svn: 160741

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