that these passes are properly preserved.

Fix several transformation passes that claimed to preserve LoopSimplify
form but weren't.

llvm-svn: 80926

LoopSimplify form, which is currently only available on Loops (and
not MachineLoops). Also, move the code out of the header file.

llvm-svn: 80923

instead of a bool argument, and to do the dominator check itself.
This makes it eaiser to use when DominatorTree information is
available.

llvm-svn: 80920

llvm-svn: 80919

llvm-svn: 80918

llvm-svn: 80917

memcpy calls.

llvm-svn: 80915

llvm-svn: 80912

Removed inverted flag form MaximumSpanningTree, also do not handle so much
information to MaximumSpanningTree.

llvm-svn: 80911

(See http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20090831/086139.html)

llvm-svn: 80909

llvm-svn: 80907

with the new asmprinter.

llvm-svn: 80906

different formatting from the old asmprinter, but it should be 
semantically the same.  We used to get:

	popl	%eax
	addl	$_GLOBAL_OFFSET_TABLE_ + [.-.Lllvm$6.$piclabel], %eax
...

Now we get:

	popl	%eax
.Lpicbaseref6:
	addl	$(_GLOBAL_OFFSET_TABLE_ + (.Lpicbaseref6 - .Lllvm$6.$piclabel)), %eax
...

llvm-svn: 80905

Reference to hidden symbols do not have to go through non-lazy pointer in non-pic mode. rdar://7187172.

llvm-svn: 80904

llvm-svn: 80903

we can diff .s files.

llvm-svn: 80894

llvm-svn: 80893

llvm-svn: 80892

and fix a few things using << on MCSymbols to use ->print(). No
functionality change other than unbreaking my previous patch.

llvm-svn: 80890

llvm-svn: 80889

llvm-svn: 80888

simplifylibcalls optimization is thus valid for C++ but not C.
It's not important enough to worry about for C++ apps, so just
remove it.

rdar://7191924

llvm-svn: 80887

all global variable operand flag processing stuff is shared between
different operand types.

llvm-svn: 80886

llvm-svn: 80885

from operand" logic.  GlobalAddress still todo.

llvm-svn: 80884

olden programs working.

llvm-svn: 80881

X86JITInfo::getLazyResolverFunction() should not read cpu id to determine whether sse is available. Just use consult subtarget.

No functionality changes.

llvm-svn: 80880

  .align 3, 0x90
instead of,
  .align 3, 144

suggested by eric.

llvm-svn: 80875

llvm-svn: 80874

Fixed a test that ensures the LocalRewriter does not attempt to
avoid reloads by reusing clobbered registers.

This was causing issues in 256.bzip2 when compiled with PIC for
a while (starting at r78217), though the problem has since been masked. 

llvm-svn: 80872

llvm-svn: 80871

Use CallbackVH, instead of WeakVH, to hold MDNode elements.
Use FoldingSetNode to unique MDNodes in a context.
Use CallbackVH hooks to update context's MDNodeSet appropriately.

llvm-svn: 80868

llvm-svn: 80867

reliable.

llvm-svn: 80863

re-commit r66920 (which has been backed out in r66953) I may have more luck this time. I'll back out if needed...

llvm-svn: 80858

instruction tables to support segmented addressing (and other objects
of obscure type).
Modified the X86 assembly printers to handle these new operand types.
Added JMP and CALL instructions that use segmented addresses.

llvm-svn: 80857

llvm-svn: 80855

llvm-svn: 80841

Use FoldingSetNode to unique MDNodes in a context.
Use CallbackVH hooks to update context's MDNodeSet appropriately.

llvm-svn: 80839

llvm-svn: 80838