llvm-svn: 119948

llvm-svn: 119947

llvm-svn: 119946

llvm-svn: 119945

Initialize MemDep's TD member so buildbots don't trip over an uninitialized pointer (TD is passed to PHITransAddr).

I wonder why this didn't explode earlier.

llvm-svn: 119944

- Negative ChainingSize doesn't make sense, make it unsigned.

llvm-svn: 119943

folding improvements: if P points to a type of size zero, turn "gep P, N" into "P".
More generally, if a gep index type has size zero, instcombine could replace the
index with zero, but that is not done here.

llvm-svn: 119942

llvm-svn: 119941

llvm-svn: 119940

llvm-svn: 119939

llvm-svn: 119938

the code to not add a "condition code" if it's trap.

llvm-svn: 119937

- Add comments saying where the encodings for other instructions came from.

llvm-svn: 119936

llvm-svn: 119935

llvm-svn: 119934

zero sized elements.  This allows us to compile:

  #include <string>
  void foo() { std::string s; }

into an empty function.

llvm-svn: 119933

llvm-svn: 119932

when transfering between i64 gprs and mmx regs.

llvm-svn: 119931

method in MemDep instead of inserting an instruction, doing a query,
then removing it.  Neither operation is effectively cached.

llvm-svn: 119930

llvm-svn: 119929

destination location of a memcpy/memmove.  I'm not clear about whether
TBAA works on these, so I'm leaving it out for now.  Dan, please revisit
this when convenient.

llvm-svn: 119928

llvm-svn: 119927

llvm-svn: 119926

llvm-svn: 119925

llvm-svn: 119924

llvm-svn: 119923

void a(int x) { if (((1<<x)&8)==0) b(); }

into "x != 3", which occurs over 100 times in 403.gcc but in no
other program in llvm-test.

llvm-svn: 119922

llvm-svn: 119921

llvm-svn: 119920

A new AST node is introduced:
   def IndirectField : DDecl<Value>;
IndirectFields are injected into the anonymous's parent scope and chain back to
the original field. Name lookup for anonymous entities now result in an
IndirectFieldDecl instead of a FieldDecl.
There is no functionality change, the code generated should be the same.

llvm-svn: 119919

llvm-svn: 119918

llvm-svn: 119917

allowing the memcpy to be eliminated.

Unfortunately, the requirements on byval's without explicit 
alignment are really weak and impossible to predict in the 
mid-level optimizer, so this doesn't kick in much with current
frontends.  The fix is to change clang to set alignment on all
byval arguments.

llvm-svn: 119916

llvm-svn: 119915

requirement on the input pointer.

llvm-svn: 119914

llvm-svn: 119913

mode variables. Handle frame indexes in load/store and allocas again.

llvm-svn: 119912

to match the one from the load emitter above.

llvm-svn: 119911

When we resolve a forward declaration type, be sure to put it into the m_die_to_type map so we don't assert later when someone tries to resolve the type.

llvm-svn: 119910

llvm-svn: 119909