don't alias.  Remove an old and poorly reduced testcase that fails
with this transform for reasons unrelated to the original test.

llvm-svn: 80693

Add MO flags to simplify the printing of relocations.
Remove the support for printing large code model relocs (which
aren't supported anyway).

llvm-svn: 80691

llvm-svn: 80689

llvm-svn: 80682

llvm-svn: 80680

EmitLabel()

llvm-svn: 80677

llvm-gcc build when expensive checking is turned on.

llvm-svn: 80671

llvm-svn: 80670

llvm-svn: 80669

Add statistics for regular edge profiling, this enables the comparation of the
number of edges inserted by regular and optimal edge profiling.

llvm-svn: 80668

Optimal edge profiling is only possible when blocks with no predecessors get an
virtual edge (BB,0) that counts the execution frequencies of this
function-exiting blocks.
This patch makes the necessary changes before actually enabling optimal edge profiling.

llvm-svn: 80667

This adds a pass to verify the current profile against the flow conditions.
This is very helpful when later on trying to perserve the profiling information
during all passes.

llvm-svn: 80666

llvm-svn: 80664

for sanity.  This didn't turn up any bugs.

Change CallGraphNode to maintain its "callsite" information in the 
call edges list as a WeakVH instead of as an instruction*.  This fixes
a broad class of dangling pointer bugs, and makes CallGraph have a number
of useful invariants again.  This fixes the class of problem indicated
by PR4029 and PR3601.

llvm-svn: 80663

llvm-svn: 80660

llvm-svn: 80658

llvm-svn: 80656

tied to different source registers, the TwoAddressInstructionPass needs to
be smarter.  Change it to check before replacing a source register whether
that source register is tied to a different destination register, and if so,
defer handling it until a subsequent iteration.

llvm-svn: 80654

llvm-svn: 80652

llvm-svn: 80651

llvm-svn: 80650

makes an eggregious hack somewhat more palatable. Bringing the LSDA forward
and making it a GV available for reference would be even better, but is
beyond the scope of what I'm looking to solve at this point.

Objective C++ code could generate function names that broke the previous
scheme. This fixes that.

llvm-svn: 80649

llvm-svn: 80648

llvm-svn: 80647

llvm-svn: 80637

llvm-svn: 80633

llvm-svn: 80632

llvm-svn: 80631

them.  Move the code to make that change inside the conditional.

llvm-svn: 80630

llvm-svn: 80629

llvm-svn: 80627

modify the type and location debug information for these variables to match the
programmer's expectations.

llvm-svn: 80625

SCEVUnknowns, as the non-SCEVUnknown cases in the getSCEVAtScope code
can also end up repeatedly climing through the same expression trees,
which can be unusably slow when the trees are very tall.

Also, add a quick check for SCEV pointer equality to the main
SCEV comparison routine, as the full comparison code can be expensive
in the case of large expression trees.

These fix compile-time problems in some pathlogical cases.

llvm-svn: 80623

llvm-svn: 80622

llvm-svn: 80621

llvm-svn: 80620

llvm-svn: 80618

llvm-svn: 80615

 - Down to 7 failures on 403.gcc.

llvm-svn: 80605

Stop printing old asm printing code inline with -experimental-asm-printer (this allows diffing and assembling the .s)

llvm-svn: 80604