Minor fix debug for register allocation debug output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59961 91177308-0d34-0410-b5e6-96231b3b80d8

If the type legalizer actually legalized anything
(this doesn't happen that often, since most code
does not use illegal types) then follow it by a
DAG combiner run that is allowed to generate
illegal operations but not illegal types.  I didn't
modify the target combiner code to distinguish like
this between illegal operations and illegal types,
so it will not produce illegal operations as well
as not producing illegal types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59960 91177308-0d34-0410-b5e6-96231b3b80d8

Fix comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59958 91177308-0d34-0410-b5e6-96231b3b80d8

NULL, unique pointers from malloc(0), and freed pointers are legal values for
noalias attribute parameters/return values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59955 91177308-0d34-0410-b5e6-96231b3b80d8

Move target independent td files from lib/Target/ to include/llvm/Target so they can be distributed along with the header files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59953 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate some unused variable compile time warnings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59952 91177308-0d34-0410-b5e6-96231b3b80d8

Test add-with-overflow with fast ISel.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59945 91177308-0d34-0410-b5e6-96231b3b80d8

Seriously strengthen the guarantee offered by noalias on a function's return
value. It must now be as if the pointer were allocated and has not escaped to
the caller. Thanks to Dan Gohman for pointing out the error in the original
and helping devise this definition.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59940 91177308-0d34-0410-b5e6-96231b3b80d8

Extend the 'noalias' attribute to function return values. This is intended to
indicate functions that allocate, such as operator new, or list::insert. The
actual definition is slightly less strict (for now).

No changes to the bitcode reader/writer, asm printer or verifier were needed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59934 91177308-0d34-0410-b5e6-96231b3b80d8

Added missing description for -disable-mmx option.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59929 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for llvm.uadd.with.overflow.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59926 91177308-0d34-0410-b5e6-96231b3b80d8

Roll back rev 59890, since Chris says this can never happen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59914 91177308-0d34-0410-b5e6-96231b3b80d8

Rename SetCCResultContents to BooleanContents.  In
practice these booleans are mostly produced by SetCC,
however the concept is more general.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59911 91177308-0d34-0410-b5e6-96231b3b80d8

Make JIT::runFunction handle functions with non-C calling conventions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59904 91177308-0d34-0410-b5e6-96231b3b80d8

Added -disable-mmx using a patch from Preston Gurd.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59901 91177308-0d34-0410-b5e6-96231b3b80d8

Added check to avoid generating extract subvector beyond the end of the vector when normalizing vector shuffles.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59900 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed named anchor for llvm.stackprotector intrinsic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59893 91177308-0d34-0410-b5e6-96231b3b80d8

CellSPU: Fix bug 3056. Varadic extract_element was not implemented (nor was it
ever conceived to occur).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59891 91177308-0d34-0410-b5e6-96231b3b80d8

Check for NULL before traversing the isa<> type hierarchy checking with a
NULL-based reference.

Note: Encountered this a few times on Tiger + gcc 4.0.1. Might just be a
platform-specific compiler issue, but it's good defensive programming in any
case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59890 91177308-0d34-0410-b5e6-96231b3b80d8

Describe how the JIT maps fields to MachineOperands, patch by
JP Bonn!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59876 91177308-0d34-0410-b5e6-96231b3b80d8

Make a convenient helper for printing offsets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59872 91177308-0d34-0410-b5e6-96231b3b80d8

Cleanup of the [SU]ADDO type legalization code. Patch by Duncan!

"It simplifies the type legalization part a bit, and produces better code by
teaching SelectionDAG about the extra bits in an i8 SADDO/UADDO node.  In
essence, I spontaneously decided that on x86 this i8 boolean result would be
either 0 or 1, and on other platforms 0/1 or 0/-1, depending on whether the
platform likes it's boolean zero extended or sign extended."

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59864 91177308-0d34-0410-b5e6-96231b3b80d8

- Move conversion of [SU]ADDO from DAG combiner into legalizer.
- Add "promote integer type" stuff to the legalizer for these nodes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59847 91177308-0d34-0410-b5e6-96231b3b80d8

Fix build failure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59844 91177308-0d34-0410-b5e6-96231b3b80d8

Silence unused variable warnings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59841 91177308-0d34-0410-b5e6-96231b3b80d8

Document TEST=dbgopt

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59839 91177308-0d34-0410-b5e6-96231b3b80d8

Correctly set the isCtrl flag for chain dependencies.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59837 91177308-0d34-0410-b5e6-96231b3b80d8

Update comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59836 91177308-0d34-0410-b5e6-96231b3b80d8

Update comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59834 91177308-0d34-0410-b5e6-96231b3b80d8

reapply Sanjiv's patch to genericize memcpy/memset/memmove to take an
arbitrary integer width for the count.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59823 91177308-0d34-0410-b5e6-96231b3b80d8

Revert r59802. It was breaking the build of llvm-gcc:

g++ -m32 -c -g -DIN_GCC -W -Wall -Wwrite-strings -Wmissing-format-attribute -fno-common -mdynamic-no-pic -DHAVE_CONFIG_H -Wno-unused -DTARGET_NAME=\"i386-apple-darwin9.5.0\" -I. -I. -I../../llvm-gcc.src/gcc -I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include -I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include  -I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/include -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/include -DENABLE_LLVM -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/../llvm.src/include  -D_DEBUG  -D_GNU_SOURCE -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS   -I. -I. -I../../llvm-gcc.src/gcc -I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include -I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include  -I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/include -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/include ../../llvm-gcc.src/gcc/llvm-types.cpp -o llvm-types.o
../../llvm-gcc.src/gcc/llvm-convert.cpp: In member function 'void TreeToLLVM::EmitMemCpy(llvm::Value*, llvm::Value*, llvm::Value*, unsigned int)':
../../llvm-gcc.src/gcc/llvm-convert.cpp:1496: error: 'memcpy_i32' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp:1496: error: 'memcpy_i64' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp: In member function 'void TreeToLLVM::EmitMemMove(llvm::Value*, llvm::Value*, llvm::Value*, unsigned int)':
../../llvm-gcc.src/gcc/llvm-convert.cpp:1512: error: 'memmove_i32' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp:1512: error: 'memmove_i64' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp: In member function 'void TreeToLLVM::EmitMemSet(llvm::Value*, llvm::Value*, llvm::Value*, unsigned int)':
../../llvm-gcc.src/gcc/llvm-convert.cpp:1528: error: 'memset_i32' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp:1528: error: 'memset_i64' is not a member of 'llvm::Intrinsic'
make[3]: *** [llvm-convert.o] Error 1
make[3]: *** Waiting for unfinished jobs....
rm fsf-funding.pod gcov.pod gfdl.pod cpp.pod gpl.pod gcc.pod
make[2]: *** [all-stage1-gcc] Error 2
make[1]: *** [stage1-bubble] Error 2
make: *** [all] Error 2

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59809 91177308-0d34-0410-b5e6-96231b3b80d8

Make mem[cpy,move,set] intrinsics overloaded.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59802 91177308-0d34-0410-b5e6-96231b3b80d8

Default to converting UADDO to the generic form that SADDO is converted to.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59801 91177308-0d34-0410-b5e6-96231b3b80d8

Optimize (x/y)*y into x-(x%y) in general. Div and rem are about the same, and
a subtract is cheaper than a multiply. This generalizes an existing transform.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59800 91177308-0d34-0410-b5e6-96231b3b80d8

LLVM does have a fortran FE!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59795 91177308-0d34-0410-b5e6-96231b3b80d8

Clean up normalization of shuffles

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59792 91177308-0d34-0410-b5e6-96231b3b80d8

CellSPU:
(a) Fix bgs 3052, 3057
(b) Incorporate Duncan's suggestions re: i1 promotion
(c) Indentation updates.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59790 91177308-0d34-0410-b5e6-96231b3b80d8

Combine the two add with overflow intrinsics lowerings. They differ only in DAG node type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59788 91177308-0d34-0410-b5e6-96231b3b80d8

Set the isAntiDep flag in the MachineInstr scheduler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59787 91177308-0d34-0410-b5e6-96231b3b80d8

Generate code for llvm.uadd.with.overflow intrinsic. No conversion support yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59786 91177308-0d34-0410-b5e6-96231b3b80d8

Add a flag to SDep for tracking which edges are anti-dependence edges.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59785 91177308-0d34-0410-b5e6-96231b3b80d8

Update comment to reflect a semblance of reality.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59784 91177308-0d34-0410-b5e6-96231b3b80d8

Remove chains. Unnecessary.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59783 91177308-0d34-0410-b5e6-96231b3b80d8

Rename SDep's isSpecial to isArtificial, to make this field a little
less mysterious.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59782 91177308-0d34-0410-b5e6-96231b3b80d8

Add generic test for add with overflow.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59781 91177308-0d34-0410-b5e6-96231b3b80d8

Rename "ADDO" to "SADDO" and "UADDO". The "UADDO" isn't equivalent to "ADDC"
because the boolean it returns to indicate an overflow may not be treated like
as a flag. It could be stored to memory, for instance.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59780 91177308-0d34-0410-b5e6-96231b3b80d8

Implement the sadd_with_overflow intrinsic. This is converted into
"ISD::ADDO". ISD::ADDO is lowered into a target-independent form that does the
addition and then checks if the result is less than one of the operands. (If it
is, then there was an overflow.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59779 91177308-0d34-0410-b5e6-96231b3b80d8

Fix unused variable warnings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59778 91177308-0d34-0410-b5e6-96231b3b80d8

Use ComputeLatency in the MachineInstr scheduler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59777 91177308-0d34-0410-b5e6-96231b3b80d8

Remove the CycleBound computation code from the ScheduleDAGRRList
schedulers. This doesn't have much immediate impact because
targets that use these schedulers by default don't yet provide
pipeline information.

This code also didn't have the benefit of register pressure
information. Also, removing it will avoid problems with list-burr
suddenly starting to do latency-oriented scheduling on x86 when we
start providing pipeline data, which would increase spilling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59775 91177308-0d34-0410-b5e6-96231b3b80d8

Update comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59766 91177308-0d34-0410-b5e6-96231b3b80d8

CMake: Do not rebuild the world when tblgen changes but the .inc files
it produces are not affected by the change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59763 91177308-0d34-0410-b5e6-96231b3b80d8

Implement ComputeLatency for MachineInstr ScheduleDAGs. Factor
some of the latency computation logic out of the SDNode
ScheduleDAG code into a TargetInstrItineraries helper method
to help with this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59761 91177308-0d34-0410-b5e6-96231b3b80d8

Add UADDO and SADDO nodes. These will be used for determining an overflow
condition in an addition operation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59760 91177308-0d34-0410-b5e6-96231b3b80d8

Change these schedulers to not emit no-ops. It turns out that
the RR scheduler actually does look at latency values, but it
doesn't use a hazard recognizer so it has no way to know when
a no-op is needed, as opposed to just stalling and incrementing
the cycle count.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59759 91177308-0d34-0410-b5e6-96231b3b80d8

Fix error where it wasn't getting the correct caller function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59758 91177308-0d34-0410-b5e6-96231b3b80d8

If the function being inlined has a higher stack protection level than the
inlining function, then increase the stack protection level on the inlining
function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59757 91177308-0d34-0410-b5e6-96231b3b80d8

Introduce two new "add" intrinsics. These return the sum plus a bit indicating
that an overflow/carry occured. These are converted into ISD::[SU]ADDO nodes,
which are lowered in a target-independent way into something sane. Eventually,
each target can implement their own method of checking the overflow/carry flags.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59756 91177308-0d34-0410-b5e6-96231b3b80d8

CMake: More documentation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59755 91177308-0d34-0410-b5e6-96231b3b80d8

Delete redundant inline keywords.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59754 91177308-0d34-0410-b5e6-96231b3b80d8

Doxygenate comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59753 91177308-0d34-0410-b5e6-96231b3b80d8

CMake: Some documentation. Work in progress.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59752 91177308-0d34-0410-b5e6-96231b3b80d8

Treat mid-block labels the same as terminators when building the
MachineInstr scheduling DAG, meaning they implicitly depend on all
preceding defs. This fixes Benchmarks/Shootout-C++/except and
Regression/C++/EH/simple_rethrow in
  -relocation-model=pic -disable-post-RA-scheduler=false
mode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59747 91177308-0d34-0410-b5e6-96231b3b80d8

Add another machine-code printing pass when post-pass scheduling is run.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59746 91177308-0d34-0410-b5e6-96231b3b80d8

Don't forget arguments!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59745 91177308-0d34-0410-b5e6-96231b3b80d8

Test -pre-RA-sched=fast too, for completeness.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59741 91177308-0d34-0410-b5e6-96231b3b80d8

CMake: Option for building with -fPIC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59739 91177308-0d34-0410-b5e6-96231b3b80d8

Updating ignore lists.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59737 91177308-0d34-0410-b5e6-96231b3b80d8

CellSPU:
(a) Remove moved file (SPUAsmPrinter.cpp) to make svn happy.
(b) Remove truncated stores that will never be used.
(c) Add initial support for __muldi3 as a libcall.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59734 91177308-0d34-0410-b5e6-96231b3b80d8

Add some documentation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59727 91177308-0d34-0410-b5e6-96231b3b80d8

Allow XMM2 and XMM3 to be used for non ABI compliant code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59720 91177308-0d34-0410-b5e6-96231b3b80d8

80-column violation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59718 91177308-0d34-0410-b5e6-96231b3b80d8

Reformatting. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59717 91177308-0d34-0410-b5e6-96231b3b80d8

add an operator= to assign to smallstring.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59715 91177308-0d34-0410-b5e6-96231b3b80d8

CellSPU: Custom lower truncating stores of i8 to i1 (should not have been
promote), fix signed conversion of indexed offsets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59707 91177308-0d34-0410-b5e6-96231b3b80d8

undef beats zero. Fix this missed optimization opportunity. Patch by Matt Elder!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59705 91177308-0d34-0410-b5e6-96231b3b80d8

Revert accidental last patch

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59704 91177308-0d34-0410-b5e6-96231b3b80d8

CellSPU: Adjust spacing/tabulation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59703 91177308-0d34-0410-b5e6-96231b3b80d8

Remove a remnant of list-burr's fast mode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59702 91177308-0d34-0410-b5e6-96231b3b80d8

Factor out the SethiUllman numbering logic from the list-burr and
list-tdrr schedulers into a common base class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59701 91177308-0d34-0410-b5e6-96231b3b80d8

Remove the "fast" form of the list-burr scheduler, and use the
dedicated "fast" scheduler in -fast mode instead, which is
faster. This speeds up llc -fast by a few percent on some
testcases -- the speedup only happens for code not handled by
fast-isel.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59700 91177308-0d34-0410-b5e6-96231b3b80d8

CMake: when building shared libraries, use -fPIC for compiling
partially linked objects.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59699 91177308-0d34-0410-b5e6-96231b3b80d8

Facter AddPseudoTwoAddrDeps and associated infrasructure out of
the list-burr scheduler so that it can be used by the list-tdrr
scheduler too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59698 91177308-0d34-0410-b5e6-96231b3b80d8

- Register scavenger should use MachineRegisterInfo and internal map to find the first use of a register after a given machine instruction.
- When scavenging a register, in addition to the spill, insert a restore before the first use.
- Abort if client is looking to scavenge a register even when a previously scavenged register is still live.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59697 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a thinko. MO is getOperand(i-1) so we don't have to adjust e.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59696 91177308-0d34-0410-b5e6-96231b3b80d8

Add #include <climits> to get the definition of INT_MAX.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59692 91177308-0d34-0410-b5e6-96231b3b80d8

Factor out the code for verifying the work of the scheduler,
extend it a bit, and make use of it in all schedulers, to
ensure consistent checking.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59689 91177308-0d34-0410-b5e6-96231b3b80d8

Do not forget llvm.dbg.declare's first argument while removing debugging information.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59688 91177308-0d34-0410-b5e6-96231b3b80d8

Copy the tblgen utility.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59681 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify this code a little. In the fast scheduler, CreateNewSUnit
and CreateClone don't add any extra value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59679 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate a compile time warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59678 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate a compile time warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59677 91177308-0d34-0410-b5e6-96231b3b80d8

Experimental post-pass scheduling support. Post-pass scheduling
is currently off by default, and can be enabled with
-disable-post-RA-scheduler=false.

This doesn't have a significant impact on most code yet because it doesn't
yet do anything to address anti-dependencies and it doesn't attempt to
disambiguate memory references. Also, several popular targets
don't have pipeline descriptions yet.

The majority of the changes here are splitting the SelectionDAG-specific
code out of ScheduleDAG, so that ScheduleDAG can be moved to
libLLVMCodeGen.a. The interface between ScheduleDAG-using code and
the rest of the scheduling code is somewhat rough and will evolve.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59676 91177308-0d34-0410-b5e6-96231b3b80d8

Move the code for printing a graph node label for an SUnit into
a virtual method of SelectionDAG.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59667 91177308-0d34-0410-b5e6-96231b3b80d8

Convert SUnit's dump method into a print method and implement
dump in terms of it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59665 91177308-0d34-0410-b5e6-96231b3b80d8

CMake: Removed source file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59662 91177308-0d34-0410-b5e6-96231b3b80d8

Do not use separate utility to walk all instructions and remove dead dbg intrinsics. Let instcombiner do this job.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59659 91177308-0d34-0410-b5e6-96231b3b80d8

Let instcombiner remove redundant dbg intrinsics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59658 91177308-0d34-0410-b5e6-96231b3b80d8

If there are two consecutive llvm.dbg.stoppoint calls then
it is likely that the optimizer deleted code in between these
two intrinsics. Keep only the last llvm.dbg.stoppoint in this case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59657 91177308-0d34-0410-b5e6-96231b3b80d8

CMake: Removed source file from lib/Target/PIC16/CMakeLists.txt.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59655 91177308-0d34-0410-b5e6-96231b3b80d8