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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80839 91177308-0d34-0410-b5e6-96231b3b80d8

More missed vdup patterns

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80838 91177308-0d34-0410-b5e6-96231b3b80d8

Switch llc from ParseBitcodeFile to ParseIRFile. This lets llc
transparently read either LLVM Assembly or LLVM Bitcode files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80829 91177308-0d34-0410-b5e6-96231b3b80d8

Add a comment noting the memory ownership rules.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80827 91177308-0d34-0410-b5e6-96231b3b80d8

Add convenience functions for reading in LLVM IR that autodetect
and LLVM Assembly and LLVM Bitcode and automatically call the
corresponding reader.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80809 91177308-0d34-0410-b5e6-96231b3b80d8

switch from std::string to SmallString + raw_svector_ostream.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80807 91177308-0d34-0410-b5e6-96231b3b80d8

split mcinst lowering stuff out to its own file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80806 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the syntax of add/sub/mul nsw/nuw and sdiv exact.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80805 91177308-0d34-0410-b5e6-96231b3b80d8

Add const qualifiers for isBitcodeWrapper, and add new functions
isRawBitcode and isBitcode to allow clients to test whether a given
memory buffer holds a bitcode image.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80804 91177308-0d34-0410-b5e6-96231b3b80d8

Refactor common code from ParseAssemblyString and ParseAssemblyFile,
to expose a low-level interface for parsing from an existing MemoryBuffer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80803 91177308-0d34-0410-b5e6-96231b3b80d8

Add const qualifiers to dominates' arguments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80801 91177308-0d34-0410-b5e6-96231b3b80d8

Removed temporarily because of breaking Darwin builds.
(See http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20090831/086214.html)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80799 91177308-0d34-0410-b5e6-96231b3b80d8

Rearrange code to eliminate redundancy and avoid gotos.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80798 91177308-0d34-0410-b5e6-96231b3b80d8

plug another leak in LLParser::PerFunctionState::SetInstName()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80792 91177308-0d34-0410-b5e6-96231b3b80d8

Changed profiling-tool-chain.ll test to use optimal-edge-profiling instead of
edge-profiling, this is more useful since the loading of the
optimal-edge-profiling is more complicated.
The edge-profiling is tested in edge-profiling.ll where only the
instrumentation is tested.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80791 91177308-0d34-0410-b5e6-96231b3b80d8

plug memory leak in LLParser::PerFunctionState::SetInstName() by deleting a value after replacing it

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80790 91177308-0d34-0410-b5e6-96231b3b80d8

Sort edges in MaximumSpanningTree more stable in case of equal weight.
(See http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20090824/085890.html)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80789 91177308-0d34-0410-b5e6-96231b3b80d8

Changed set of BlocksToInstrument to set of InsertedBlocks that do not have to
be instrumented.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80788 91177308-0d34-0410-b5e6-96231b3b80d8

Code cleanups and added comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80781 91177308-0d34-0410-b5e6-96231b3b80d8

Opaque types didn't work if llvm_is_multithreaded().
AlwaysOpaqueTy is always NULL at this point, and it causes an assertion failure.
Fix it by using the just constructed tmp instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80780 91177308-0d34-0410-b5e6-96231b3b80d8

set svn:ignore

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80779 91177308-0d34-0410-b5e6-96231b3b80d8

Fix DbgStopPointInst->getFileName/getDirectory, broken by the MDNodification in
r80406, and readd a -print-dbginfo test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80778 91177308-0d34-0410-b5e6-96231b3b80d8

Retype from unsigned to CallingConv::ID accordingly. Approved by Bob Wilson.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80773 91177308-0d34-0410-b5e6-96231b3b80d8

Fix month.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80769 91177308-0d34-0410-b5e6-96231b3b80d8

fix PR4815: some cases where DeleteDeadInstruction can delete
the instruction BBI points to.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80768 91177308-0d34-0410-b5e6-96231b3b80d8

clean up this code a bit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80767 91177308-0d34-0410-b5e6-96231b3b80d8

eliminate VISIBILITY_HIDDEN from Transforms/Scalar.  PR4861

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80766 91177308-0d34-0410-b5e6-96231b3b80d8

refactor select 'sched insertion' out to its own method.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80764 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for modeling whether or not the processor has support for
conditional moves as a subtarget feature.  This is the easy part of
PR4841.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80763 91177308-0d34-0410-b5e6-96231b3b80d8

fix PR4848 an infinite loop when indexing down through a recursive gep
and we get the original pointer type.  This doesn't mean that we're
at the first pointer being indexed.  Correct the predicate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80762 91177308-0d34-0410-b5e6-96231b3b80d8

fix PR4837, some bugs folding vector compares.  These
return a vector of i1, not i1 itself.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80761 91177308-0d34-0410-b5e6-96231b3b80d8

revert my patch, duncan points out what is wrong with my logic.  Add
a comment so that I don't change this in the future :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80760 91177308-0d34-0410-b5e6-96231b3b80d8

one more try at making this simpler, hopefully it won't break everything :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80759 91177308-0d34-0410-b5e6-96231b3b80d8

Complicate Chris's simplification, avoiding complaints
about singular iterators when building with expensive
checks turned on.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80757 91177308-0d34-0410-b5e6-96231b3b80d8

Don't force the triple or data layout in this test. We just have to get them
from the host and hope that works.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80751 91177308-0d34-0410-b5e6-96231b3b80d8

Add a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80749 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed the asmstrings for 8-bit, 16-bit, and 32-bit ADD %rAX, imm instructions.
Added a 64-bit ADD %RAX, imm32 instruction.
Added all 4 forms for AND %rAX, imm and CMP %rAX, imm.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80746 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR4845: r77946 completely broke x86_64 Darwin (or any situation where the
desired triplet is a sub-target, e.g. thumbv7 vs. arm host). Reverting the
patch isn't quite right either since the previous behavior does not allow the
triplet to be overridden with -march.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80742 91177308-0d34-0410-b5e6-96231b3b80d8

Disable uniqueness test for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80741 91177308-0d34-0410-b5e6-96231b3b80d8

For now disable MDNode uniquing. This fixes llvm-gcc bootstrap failure on certain Mac OS X 10.5. I am working on a proper fix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80738 91177308-0d34-0410-b5e6-96231b3b80d8

Avoid calling removeVirtualRegisterKilled which iterates over the operands
to find the kill, since we already have the operand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80736 91177308-0d34-0410-b5e6-96231b3b80d8

Refactor some code into separate functions.  No functional changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80733 91177308-0d34-0410-b5e6-96231b3b80d8

Move use of LV inside condition that guards for null LV.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80731 91177308-0d34-0410-b5e6-96231b3b80d8

Fix build warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80730 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80729 91177308-0d34-0410-b5e6-96231b3b80d8

Fix what I believe is a copy-n-pasto introduced in r78129.
 - Bruno, please check!!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80728 91177308-0d34-0410-b5e6-96231b3b80d8

X86/Encoding: Support ExternalSymbol operands in emitDisplacementField (for consistency).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80727 91177308-0d34-0410-b5e6-96231b3b80d8

Remove Offset from ExternalSybmol MachineOperands, this is unused (and at least partly unsupported, in X86 encoding at least).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80726 91177308-0d34-0410-b5e6-96231b3b80d8

debug intrinsics do not go in the callgraph, this fixes a couple
clang regtest failures.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80724 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a regression I introduced in r80708, found by llvm-test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80718 91177308-0d34-0410-b5e6-96231b3b80d8

Fix ELF Writter related memory leaks

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80717 91177308-0d34-0410-b5e6-96231b3b80d8

OptimalEdgeProfiling: Reading in Profiles.
This enables LLVM to read the OptimalEdgeProfiles.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80715 91177308-0d34-0410-b5e6-96231b3b80d8

Addedum to r80712, forgot to add files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80713 91177308-0d34-0410-b5e6-96231b3b80d8

OptimalEdgeProfiling: Creation of profiles.
This adds the instrumentation and runtime part of OptimalEdgeProfiling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80712 91177308-0d34-0410-b5e6-96231b3b80d8

Small fix in ProfileEstimator that eliminates duplicated code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80711 91177308-0d34-0410-b5e6-96231b3b80d8

reduce size of SmallString to something more reasonable

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80710 91177308-0d34-0410-b5e6-96231b3b80d8

remove CallGraphNode::replaceCallSite, it is redundant with other APIs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80708 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for generating code for vst{234}lane intrinsics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80707 91177308-0d34-0410-b5e6-96231b3b80d8

cleanup/simplify

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80706 91177308-0d34-0410-b5e6-96231b3b80d8

Fix incorrect declarations of intrinsics in this test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80705 91177308-0d34-0410-b5e6-96231b3b80d8

Use raw_ostream instead of sstream

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80704 91177308-0d34-0410-b5e6-96231b3b80d8

remove a bunch of explicit code previously needed to update the
callgraph.  This is now dead because RAUW does the job.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80703 91177308-0d34-0410-b5e6-96231b3b80d8

Add hidden flags to allow binary search of post-RA scheduling errors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80702 91177308-0d34-0410-b5e6-96231b3b80d8

RRX reads CPSR.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80699 91177308-0d34-0410-b5e6-96231b3b80d8

doxygenate RefreshCallGraph, add a new 'verification mode', and run it after
CGSCC passes make change to ensure they are updating the callgraph correctly
(when assertions are enabled).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80698 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a typo in a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80697 91177308-0d34-0410-b5e6-96231b3b80d8

Added TEST %rAX, $imm instructions to the Intel tables.  These are required for the X86 disassembler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80696 91177308-0d34-0410-b5e6-96231b3b80d8

simpler solution to iterator invalidation "problem" found
by expensive checking.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80695 91177308-0d34-0410-b5e6-96231b3b80d8

enhance memcpy opt to turn memmoves into memcpy when the src/dest
don't alias.  Remove an old and poorly reduced testcase that fails
with this transform for reasons unrelated to the original test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80693 91177308-0d34-0410-b5e6-96231b3b80d8

Reapply 80278

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80691 91177308-0d34-0410-b5e6-96231b3b80d8

revert inadvertant change from previous commit

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80689 91177308-0d34-0410-b5e6-96231b3b80d8

random code cleanups, no functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80682 91177308-0d34-0410-b5e6-96231b3b80d8

Update CMake files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80680 91177308-0d34-0410-b5e6-96231b3b80d8

Simply LSDA lable emission to use a direct special-case output instead of
EmitLabel()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80677 91177308-0d34-0410-b5e6-96231b3b80d8

Do not manipulate invalid iterators.  This fixes the
llvm-gcc build when expensive checking is turned on.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80671 91177308-0d34-0410-b5e6-96231b3b80d8

Further refactoring of PIC16 Obj file code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80670 91177308-0d34-0410-b5e6-96231b3b80d8

Update CMakeLists.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80669 91177308-0d34-0410-b5e6-96231b3b80d8

Preparation for Optimal Edge Profiling:
Add statistics for regular edge profiling, this enables the comparation of the
number of edges inserted by regular and optimal edge profiling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80668 91177308-0d34-0410-b5e6-96231b3b80d8

Preparation for Optimal Edge Profiling:
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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80667 91177308-0d34-0410-b5e6-96231b3b80d8

Preparation for Optimal Edge Profiling:
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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80666 91177308-0d34-0410-b5e6-96231b3b80d8

testcase for PR3601

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80664 91177308-0d34-0410-b5e6-96231b3b80d8

Change CallGraphNode to maintain it's Function as an AssertingVH
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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80663 91177308-0d34-0410-b5e6-96231b3b80d8

Add virtual destructor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80660 91177308-0d34-0410-b5e6-96231b3b80d8

Add test for vld{234}_lane instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80658 91177308-0d34-0410-b5e6-96231b3b80d8

Generate code for vld{234}_lane intrinsics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80656 91177308-0d34-0410-b5e6-96231b3b80d8

Fix pr4843: When an instruction has multiple destination registers that are
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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80654 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mc: Store MCSymbolData value as a pointer (to make MSVC happy).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80652 91177308-0d34-0410-b5e6-96231b3b80d8

SJLJ is arm/darwin only for now. force the triple for the test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80651 91177308-0d34-0410-b5e6-96231b3b80d8

Fix compiler warnings

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80650 91177308-0d34-0410-b5e6-96231b3b80d8

Clean up LSDA name generation and use for SJLJ exception handling. This
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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80649 91177308-0d34-0410-b5e6-96231b3b80d8

Introduce DILocation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80648 91177308-0d34-0410-b5e6-96231b3b80d8

Add getDirectory() and getFilename() interface to DIScope.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80647 91177308-0d34-0410-b5e6-96231b3b80d8

Subprogram is a scope. Derive DISubprogram from DIScope.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80637 91177308-0d34-0410-b5e6-96231b3b80d8

Rename DIBlock as DILexicalBlock.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80633 91177308-0d34-0410-b5e6-96231b3b80d8

Don't use an iterator which is potentially invalidated.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80632 91177308-0d34-0410-b5e6-96231b3b80d8

Use early exit and reduce indentation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80631 91177308-0d34-0410-b5e6-96231b3b80d8

If the tied registers are already the same, there is no need to change
them.  Move the code to make that change inside the conditional.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80630 91177308-0d34-0410-b5e6-96231b3b80d8

Add triple parsing support for XCore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80629 91177308-0d34-0410-b5e6-96231b3b80d8

Derive DICompileUnit from DIScope.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80627 91177308-0d34-0410-b5e6-96231b3b80d8

Add flag to mark structs for Apple Block "byref" variables; also add code to
modify the type and location debug information for these variables to match the
programmer's expectations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80625 91177308-0d34-0410-b5e6-96231b3b80d8