llvm-svn: 97709

we sometimes emit nodes multiple times to string buffers to size them.
Compute the histogram correctly.

llvm-svn: 97708

Re-enable test.

llvm-svn: 97707

Look ahead a bit to determine if a physical register def that is not marked dead is really alive. This is necessary to catch a lot of common cse opportunities for targets like x86.

llvm-svn: 97706

llvm-svn: 97705

sequence, just emit instruction predicates right before them.  This
exposes yet more factoring opportunitites, shrinking the X86 table 
to 79144 bytes.

llvm-svn: 97704

as the very last thing before node emission.  This should
dramatically reduce the number of times we do 'MatchAddress'
on X86, speeding up compile time.  This also improves comments
in the tables and shrinks the table a bit, now down to 
80506 bytes for x86.

llvm-svn: 97703

ABI conforming.

llvm-svn: 97702

llvm-svn: 97700

'%t' file was left around on my disk.  doh.

llvm-svn: 97699

destroyed, it could leave stubs in the StubToResolverMap, which would confuse
the lookup for subsequent lazy compilations.

llvm-svn: 97698

numbers a ComplexPat will match into.

llvm-svn: 97696

some builtins will rely on target knowledge.

llvm-svn: 97693

a patch my Micah Villmow for PR6465.

llvm-svn: 97692

llvm-svn: 97691

llvm-svn: 97690

Fix a logic error. An instruction that has a live physical register def cannot be CSE'ed, but it *can* be used to replace a common subexpression.

llvm-svn: 97688

llvm-svn: 97687

llvm-svn: 97686

llvm-svn: 97685

llvm-svn: 97684

llvm-svn: 97683

llvm-svn: 97682

Move MachineInstrExpressionTrait::getHashValue() out of line so it can skip over only virtual register defs. This matches what isEqual() is doing.

llvm-svn: 97680

llvm-svn: 97679

Re-apply r97667 but with a little bit of thought put into the patch. This implements a special DenseMapInfo trait for DenseMap<MachineInstr*> that compare the value of the MachineInstr rather than the pointer value. Since the hashing and equality test functions ignore defs it's useful for doing CSE kind optimization.

llvm-svn: 97678

llvm-svn: 97677

MULS <Rdm>, <Rn>, <Rdm>

according to A8.6.105 MUL Encoding T1.

llvm-svn: 97675

nested-name-specifier. For example, this allows member access in
diamond-shaped hierarchies like:

  struct Base {
    void Foo();
    int Member;
  };

  struct D1 : public Base {};
  struct D2 : public Base {};

  struct Derived : public D1, public D2 { }

  void Test(Derived d) {
    d.Member = 17; // error: ambiguous cast from Derived to Base
    d.D1::Member = 17; // error: okay, modify D1's Base's Member
  }

Fixes PR5820 and <rdar://problem/7535045>. Also, eliminate some
redundancy between Sema::PerformObjectMemberConversion() and
Sema::PerformObjectArgumentInitialization() -- the latter now calls
the former.

llvm-svn: 97674

llvm-svn: 97673

((id)cat)->isa. Fixes radar 7709015.

llvm-svn: 97672

XFAIL and already tracked in bugzilla.

llvm-svn: 97671

llvm-svn: 97670

llvm-svn: 97669

llvm-svn: 97667

Add in c header path for various linuxes as well.

Partial patch from Christian Adåker!

llvm-svn: 97666

CSE and recursive RAUW calls delete a node from the use list,
invalidating the use list iterator. There's currently no known
way to reproduce this in an unmodified LLVM, however there's no
fundamental reason why a SelectionDAG couldn't be formed which
would trigger this case.

llvm-svn: 97665

Machine CSE work in progress. It's doing some CSE now. But implicit def of physical registers are getting in the way.

llvm-svn: 97664

llvm-svn: 97663

and is too old to really care about the performance of the generated 
compiler.

llvm-svn: 97662