llvm-svn: 66825

sorting of ConstantInt's; unreinvent wheel.

llvm-svn: 66824

refers to the "prefix" directory, i.e., one level above "bin".  LLVMGCCPATH
is used as the directory containing the llvm-gcc executable, so add a "/bin"
suffix to get from LLVMGCCDIR to LLVMGCCPATH.

llvm-svn: 66823

llvm-svn: 66820

 - Who wouldn't want correctness to hang critically on two easily
   ignored characters?

Thanks Doug!

llvm-svn: 66819

- PathDiagnosticControlFlowPiece now consists of a "start" and "end" location
  to indicating the branch location and where the branch goes.

BugReporter:
- Updated BugReporter to construct PathDiagnosticControlFlowPiece objects with
  "end" locations.

PlistDiagnostics:
- Plists now contain the bug "type" (not just bug "category")
- Plists now encode control-flow pieces differently than events; now the
  "start" and "end" locations are recorded

llvm-svn: 66818

 - Compare to driverdriver.c if bored; not completely fair since the
   driver gets a bit more code in other places to handle binding archs
   (for Xarch) but not completely unfair either.

Fear not, extra Action classes will have a happy home for their
vtables soon.

llvm-svn: 66817

instantiation. This is roughly the structure we want to expression
instantiation.

llvm-svn: 66816

access each with a fixed negative index from op_end().

This has two important implications:
- getUser() will work faster, because there are less iterations
  for the waymarking algorithm to perform. This is important
  when running various analyses that want to determine callers
  of basic blocks.
- getSuccessor() now runs faster, because the indirection via OperandList
  is not necessary: Uses corresponding to the successors are at fixed
  offset to "this".

The price we pay is the slightly more complicated logic in the operator
User::delete, as it has to pick up the information whether it has to free
the memory of an original unconditional BranchInst or a BranchInst that
was originally conditional, but has been shortened to unconditional.
I was not able to come up with a nicer solution to this problem. (And
rest assured, I tried *a lot*).

Similar reorderings will follow for InvokeInst and CallInst. After that
some optimizations to pred_iterator and CallSite will fall out naturally.

llvm-svn: 66815

be CompoundStmts. I think this is a valid assumption, and felt that the API
should reflect it. Others please validate this assumption to make sure I didn't
break anything.

llvm-svn: 66814

llvm-svn: 66813

llvm-svn: 66809

llvm-svn: 66807

llvm-svn: 66806

llvm-svn: 66805

Re-apply 66024 with fixes: 1. Fixed indirect call to immediate address assembly. 2. Fixed JIT encoding by making the address pc-relative.

llvm-svn: 66803

llvm-svn: 66801

llvm-svn: 66800

llvm-svn: 66799

llvm-svn: 66798

llvm-svn: 66797

width of bitfields. 

I'll be burning this down and replacing it with a properly-dispatched
implementation like the one used for types.

llvm-svn: 66796

llvm-svn: 66795

llvm-svn: 66794

llvm-svn: 66793

llvm-svn: 66792

llvm-svn: 66791

llvm-svn: 66790

 - Notably, clang now exits with an error if it can't find a
   file. This flushed out a bug in the CGColorSpace.c test case. :)

llvm-svn: 66789

llvm-svn: 66788

llvm-svn: 66787

llvm-svn: 66786

llvm-svn: 66785

llvm-svn: 66784

llvm-svn: 66783

llvm-svn: 66782

llvm-svn: 66781

llvm-svn: 66780

related transformations out of target-specific dag combine into the
ARM backend.  These were added by Evan in r37685 with no testcases
and only seems to help ARM (e.g. test/CodeGen/ARM/select_xform.ll).

Add some simple X86-specific (for now) DAG combines that turn things
like cond ? 8 : 0  -> (zext(cond) << 3).  This happens frequently
with the recently added cp constant select optimization, but is a
very general xform.  For example, we now compile the second example
in const-select.ll to:

_test:
        movsd   LCPI2_0, %xmm0
        ucomisd 8(%esp), %xmm0
        seta    %al
        movzbl  %al, %eax
        movl    4(%esp), %ecx
        movsbl  (%ecx,%eax,4), %eax
        ret

instead of:

_test:
        movl    4(%esp), %eax
        leal    4(%eax), %ecx
        movsd   LCPI2_0, %xmm0
        ucomisd 8(%esp), %xmm0
        cmovbe  %eax, %ecx
        movsbl  (%ecx), %eax
        ret

This passes multisource and dejagnu.

llvm-svn: 66779

llvm-svn: 66778