llvm-svn: 150805

llvm-svn: 150796

llvm-svn: 150795

useful to represent a variable that is const in the source but can't be constant
in the IR because of a non-trivial constructor. If globalopt evaluates the
constructor, and there was an invariant.start with no matching invariant.end
possible, it will mark the global constant afterwards.

llvm-svn: 150794

instructions to be emitted.

llvm-svn: 150782

llvm-svn: 150780

llvm-svn: 150779

llvm-svn: 150778

llvm-svn: 150775

entend flag.

llvm-svn: 150774

llvm-svn: 150773

llvm-svn: 150771

Re-enable 150652 and 150654 - Make FPSCR non-reserved, and make MachineCSE bail on reserved registers. This *should* be safe as of r150786.

llvm-svn: 150769

llvm-svn: 150768

llvm-svn: 150739

llvm-svn: 150737

processor, due to the Atom scheduler producing an instruction sequence that is
different from that which is expected.
Patch by Michael Spencer!

llvm-svn: 150736

llvm-svn: 150715

llvm-svn: 150712

Call clobbers are now represented with register mask operands.  The
regmask can easily represent the fact that xmm6 is call-preserved while
ymm6 isn't.  This is automatically computed by TableGen from the
CalleeSavedRegs containing xmm6.

llvm-svn: 150709

The different calling conventions and call-preserved registers are
represented with regmask operands that are added dynamically.

llvm-svn: 150708

llvm-svn: 150706

Disable machine copy propagation for now. It's known to be buggy (PR11940) and introduces subtle miscompiles in many places.

llvm-svn: 150703

Turns out this isn't safe, because the code below depends on LHS and RHS having
the same type.

llvm-svn: 150695

llvm-svn: 150694

llvm-svn: 150690

llvm-svn: 150679

llvm-svn: 150678

llvm-svn: 150677

llvm-svn: 150670

Modify the algorithm when traversing the DAGCombiner's worklist to be O(log N) for all operations. This fixes a horrible worst case with lots of nodes where 99% of the time was being spent in std::remove.

llvm-svn: 150669

With MSVCRT, prior checker missed emission of #INF and #NAN.

FIXME: Checking should be simpler.
llvm-svn: 150667

Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed.

Patch reviewed by Daniel Dunbar. It will be followed by additional cleanup patches.

llvm-svn: 150664

Template specialize SmallVector::push_back based on POD-ness of the type.  Reduces clang binary by 188KB

llvm-svn: 150662

atof(3) might behave differently among platforms.

llvm-svn: 150661

llvm-svn: 150655

llvm-svn: 150654

llvm-svn: 150653

The rule governing the flags is this:

  no-gc + no-gc   = no-gc
  no-gc +    gc   = no-gc
  no-gc + gc-only = error
     gc +    gc   = gc
     gc + gc-only = gc-only
gc-only + gc-only = gc-only

llvm-svn: 150646

loop-rotate shouldn't hoist alloca instructions out of a loop.  Patch by Patrik Hägglund, with slightly modified test.  Issue reported by Patrik Hägglund on llvmdev.

llvm-svn: 150642