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

CellSPU: Do not custom lower i1 stores, rely on type legalization to do the
right thing and promote the store to i8.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59648 91177308-0d34-0410-b5e6-96231b3b80d8

<rdar://problem/6351057>
Discourage (allocate last) use of x86_64 R12 and R13 due to their
longer instruction encodings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59644 91177308-0d34-0410-b5e6-96231b3b80d8

ignore the -m elf_i386 directive used in the linux kernel

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59642 91177308-0d34-0410-b5e6-96231b3b80d8

Revert r59640. It broke this test for builds that aren't
configured with llvm-gcc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59641 91177308-0d34-0410-b5e6-96231b3b80d8

Use %llvmgcc -xassembler instead of invoking as directly. This avoids
problems for example when LLVM is built with --with-extra-options=-m64
and as defaults to x86-32 mode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59640 91177308-0d34-0410-b5e6-96231b3b80d8

Temporary check-in for Duncan to demonstrate CellSPU store problem.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59637 91177308-0d34-0410-b5e6-96231b3b80d8

Fix compilation error on MSVC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59629 91177308-0d34-0410-b5e6-96231b3b80d8

Forgot to add this in the previous commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59623 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed build warnings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59621 91177308-0d34-0410-b5e6-96231b3b80d8

Added a more function PIC16 backend. However to get this working a patch in
ExpandIntegerOperand (LegalizeIntegerTypes.cpp) is needed which is yet to be reworked and submitted.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59617 91177308-0d34-0410-b5e6-96231b3b80d8

Use stripPointerCasts when checking for AllocaInsts for the stackprotector intrinsic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59614 91177308-0d34-0410-b5e6-96231b3b80d8

Int type for PIC16 is i16. Added i16 intrinsics for memmove, memcpy and memset.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59612 91177308-0d34-0410-b5e6-96231b3b80d8

add a write method.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59595 91177308-0d34-0410-b5e6-96231b3b80d8

- Move the stackprotector intrinsic to the general section.
- Rewrite the sentence to make it look as if English is my first language.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59592 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for rematerialization in pre-alloc-splitting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59587 91177308-0d34-0410-b5e6-96231b3b80d8

LLVMC2: -emit-llvm stops compilation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59586 91177308-0d34-0410-b5e6-96231b3b80d8

LLVMC2: Teach llvm_gcc_c tool about -include and -fsyntax-only.
 - Only focusing on llvm_gcc_c for now, eventually this needs to be
   refactored so it can be shared via all the gcc-like tools.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59582 91177308-0d34-0410-b5e6-96231b3b80d8

Grammar.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59581 91177308-0d34-0410-b5e6-96231b3b80d8

Rearrange code to reduce the nesting level. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59580 91177308-0d34-0410-b5e6-96231b3b80d8

Use dyn_cast instead of cast.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59577 91177308-0d34-0410-b5e6-96231b3b80d8

Match an element of the return type if it returns a structure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59576 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unused variables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59570 91177308-0d34-0410-b5e6-96231b3b80d8

Fix typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59569 91177308-0d34-0410-b5e6-96231b3b80d8

CMake: Support for building 32 bits shared libraries on 64 bits GNU
systems. BUILD_32_BITS option renamed to LLVM_BUILD_32_BITS.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59568 91177308-0d34-0410-b5e6-96231b3b80d8

Fix debug printing of flagged SDNodes in SUnits so that they
print in the correct order.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59567 91177308-0d34-0410-b5e6-96231b3b80d8

Make the same change to RegScavenger::backward.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59566 91177308-0d34-0410-b5e6-96231b3b80d8

CMake: Option for enabling/disabling threads.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59565 91177308-0d34-0410-b5e6-96231b3b80d8

Verify that the second parameter of the stacprotector intrinsic is an alloca
instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59563 91177308-0d34-0410-b5e6-96231b3b80d8

We also need to keep the operand index for two address check.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59562 91177308-0d34-0410-b5e6-96231b3b80d8

Register scavenger should process early clobber defs first. A dead early clobber def should not interfere with a normal def which happens one slot later.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59559 91177308-0d34-0410-b5e6-96231b3b80d8

Fix indentation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59558 91177308-0d34-0410-b5e6-96231b3b80d8

Documentation for the llvm.stackprotector intrinsic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59557 91177308-0d34-0410-b5e6-96231b3b80d8

Add new helper pass that strips all symbol names except debugging information.
This pass makes it easier to test wheter debugging info. influences optimization passes or not.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59552 91177308-0d34-0410-b5e6-96231b3b80d8

Don't set neverHasSideEffects on x86's divide instructions, since
they trap on divide-by-zero, and this side effect is otherwise
unmodeled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59551 91177308-0d34-0410-b5e6-96231b3b80d8

Tidy up ScheduleNodeBottomUp methods, and make them more
consistent with ScheduleNodeTopDown methods.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59550 91177308-0d34-0410-b5e6-96231b3b80d8

Update a comment to reflect the current code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59549 91177308-0d34-0410-b5e6-96231b3b80d8

Remove integer promotion support for FP_EXTEND
and FP_ROUND.  Not sure what these were doing
here - probably they were sometimes (wrongly)
created with integer operands somewhere that
has since been fixed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59548 91177308-0d34-0410-b5e6-96231b3b80d8

Remove even more llvm.dbg variables.
Remove all dead globals from llvm.metadata.
Ignore linkonce linkage for selected llvm.dbg values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59547 91177308-0d34-0410-b5e6-96231b3b80d8

CMake: Remove HAVE_LT_DLOPEN from config.h.cmake because it was
removed from config.h.in.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59546 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify code using helper routines.  There is not
supposed to be any functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59545 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a bug introduced by my previous patch.  With this change, SPEC is now clean with prealloc splitting enabled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59544 91177308-0d34-0410-b5e6-96231b3b80d8

Add more const qualifiers. This fixes build breakage from r59540.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59542 91177308-0d34-0410-b5e6-96231b3b80d8

Make some methods const.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59540 91177308-0d34-0410-b5e6-96231b3b80d8

Initialize MallocFunc and FreeFunc properly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59538 91177308-0d34-0410-b5e6-96231b3b80d8

Whitespace cleanups.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59532 91177308-0d34-0410-b5e6-96231b3b80d8

Add svn:ignore for build directories.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59531 91177308-0d34-0410-b5e6-96231b3b80d8

LegalizeTypes support for splitting and scalarizing
SCALAR_TO_VECTOR.  I didn't add the testcase, because
once llc gets past scalar-to-vector it hits a SPU target
lowering bug and explodes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59530 91177308-0d34-0410-b5e6-96231b3b80d8

Add a utility function that detects whether a loop is guaranteed to be finite.

Use it to safely handle less-than-or-equals-to exit conditions in loops. These
also occur when the loop exit branch is exit on true because SCEV inverses the
icmp predicate.

Use it again to handle non-zero strides, but only with an unsigned comparison
in the exit condition.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59528 91177308-0d34-0410-b5e6-96231b3b80d8

Rename stackprotector_create intrinsic to stackprotector.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59519 91177308-0d34-0410-b5e6-96231b3b80d8

Cast to remove warning about comparing signed and unsigned.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59518 91177308-0d34-0410-b5e6-96231b3b80d8

Implement support for JIT exceptions on X86_64. Relative offsets are
encoded on 32 bytes, and the personality function is not encoded as
relative.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59516 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unused variable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59515 91177308-0d34-0410-b5e6-96231b3b80d8

Reapply r59464, this time using the correct type
when softening FNEG.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59513 91177308-0d34-0410-b5e6-96231b3b80d8

A simple test for stack protectors. This should be valid on all platforms.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59505 91177308-0d34-0410-b5e6-96231b3b80d8

Remove the stackprotector_check intrinsic. Use a volatile load instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59504 91177308-0d34-0410-b5e6-96231b3b80d8

- Use "moveAfter" instead of "remove/insert" of a basic block.
- Use less indentation in coding.
- Shorten description.
- Update comments.
- Move code around

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59496 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a typo in a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59489 91177308-0d34-0410-b5e6-96231b3b80d8

Change SUnit's dump method to take a ScheduleDAG* instead of
a SelectionDAG*.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59488 91177308-0d34-0410-b5e6-96231b3b80d8

Revert r59464. It was causing this failure:

Running /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/test/CodeGen/XCore/dg.exp ...
FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/test/CodeGen/XCore/fneg.ll
Failed with signal(SIGABRT) at line 1
while running:  llvm-as < /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/test/CodeGen/XCore/fneg.ll |  llc -march=xcore > fneg.ll.tmp1.s
Assertion failed: (VT.isFloatingPoint() && "Cannot create integer FP constant!"), function getConstantFP, file /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/lib/CodeGen/SelectionDAG/SelectionDAG.cpp, line 913.
0   llc                                 0x0092115c _ZN4llvm3sys18RemoveFileOnSignalERKNS0_4PathEPSs + 844
1   libSystem.B.dylib                   0x9217809b _sigtramp + 43
2   ???                                 0xffffffff 0x0 + 4294967295
3   libSystem.B.dylib                   0x921f0ec2 raise + 26
4   libSystem.B.dylib                   0x9220047f abort + 73
5   libSystem.B.dylib                   0x921f2063 __assert_rtn + 101
6   llc                                 0x005a5b0a _ZN4llvm12SelectionDAG13getConmake[1]: *** [check-local] Error 1
make: *** [check] Error 2

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59487 91177308-0d34-0410-b5e6-96231b3b80d8

There is no InstrStage class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59480 91177308-0d34-0410-b5e6-96231b3b80d8

Give SIToFPInst preference over UIToFPInst because it is faster on platforms that are widely used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59476 91177308-0d34-0410-b5e6-96231b3b80d8

Avoid using a loop in ReleasePred and ReleaseSucc methods to compute the
new CycleBound value. Instead, just update CycleBound on each call.
Also, make ReleasePred and ReleaseSucc methods more consistent accross
the various schedulers.

This also happens to make ScheduleDAGRRList's CycleBound computation
somewhat more interesting, though it still doesn't have any noticeable
effect, because no current targets that use the register-pressure
reduction scheduler provide pipeline models.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59475 91177308-0d34-0410-b5e6-96231b3b80d8

While handling floating point IVs lift restrictions on initial value and increment value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59471 91177308-0d34-0410-b5e6-96231b3b80d8

Handle floating point ivs during doInitialization().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59466 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate some trivial differences between the ScheduleNodeTopDown
functions in these two schedulers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59465 91177308-0d34-0410-b5e6-96231b3b80d8

Add soft float support for a bunch more operations.  Original
patch by Richard Osborne, tweaked and extended by your humble
servant.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59464 91177308-0d34-0410-b5e6-96231b3b80d8

Don't bother doing latency calculations in the "fast" scheduler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59461 91177308-0d34-0410-b5e6-96231b3b80d8

Use SUnit's CycleBound field instead of duplicating it in
a side-car datastructure

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59458 91177308-0d34-0410-b5e6-96231b3b80d8

Remove these, which test for optimizations that
are not currently done (cf PowerPC/README.txt).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59456 91177308-0d34-0410-b5e6-96231b3b80d8

Move some former testcases (low-probability codegen
optimizations) into this wishlist.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59455 91177308-0d34-0410-b5e6-96231b3b80d8

Let AnalyzeAlloca() remove debug intrinsics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59454 91177308-0d34-0410-b5e6-96231b3b80d8

Don't produce ADDC/ADDE when expanding SHL unless they are legal
for the target. This fixes PR3080.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59450 91177308-0d34-0410-b5e6-96231b3b80d8

Support dependencies between plugins by priority-sorting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59449 91177308-0d34-0410-b5e6-96231b3b80d8

Filter ToolPropertiesList to exclude all Tools not mentioned in the compilation graph.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59448 91177308-0d34-0410-b5e6-96231b3b80d8

Add a layer of indirection to make plugins more flexible.

Use strings instead of TableGen defs in the compilation graph
definition. Makes it easier for the plugins to modify an existing graph.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59447 91177308-0d34-0410-b5e6-96231b3b80d8

Don't use the isPending flag to mean what the isAvailable flag means.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59445 91177308-0d34-0410-b5e6-96231b3b80d8

move partial template specialization to FoldingSet.h.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59434 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed legalization of CONVERT_RNDSAT for integers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59432 91177308-0d34-0410-b5e6-96231b3b80d8

Removed 2008-10-17-SpillerBug.ll as it does not provide an accurate test of PR2898.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59431 91177308-0d34-0410-b5e6-96231b3b80d8

punctuate, add wording about patches contributed by others.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59417 91177308-0d34-0410-b5e6-96231b3b80d8

If SI->size() is 0, we are not allowed to dereference ->begin().
This fixed PR3078.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59416 91177308-0d34-0410-b5e6-96231b3b80d8

2008-10-17-SpillerBug.ll is currently failing, but this doesn't reflect an actual regression of PR2898. This test should probably be removed. I've XFAILed it for now to keep buildbot quiet while this is considered.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59415 91177308-0d34-0410-b5e6-96231b3b80d8

Big PBQP allocator update. Adds coalescing support, stack slot coloring, several bug-fixes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59414 91177308-0d34-0410-b5e6-96231b3b80d8

eliminate some std::set's.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59409 91177308-0d34-0410-b5e6-96231b3b80d8

simplify loop

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59406 91177308-0d34-0410-b5e6-96231b3b80d8

simplify a bunch more instcombines to use m_Specific etc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59403 91177308-0d34-0410-b5e6-96231b3b80d8

factor the code for simplifying (icmp)|(icmp) into its own function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59402 91177308-0d34-0410-b5e6-96231b3b80d8

do some computation with apints instead of ConstantInts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59401 91177308-0d34-0410-b5e6-96231b3b80d8

merge a check into a place where it is simpler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59400 91177308-0d34-0410-b5e6-96231b3b80d8

Improved shuffle normalization to avoid using extract/build when we
can extract using different indexes for two vectors. Added a few tests
for vector shuffles.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59399 91177308-0d34-0410-b5e6-96231b3b80d8

factor a whole bunch of code out into a helper function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59398 91177308-0d34-0410-b5e6-96231b3b80d8

simplify the conditions on two gigantic if's, decreasing indentation
a bit.  Next step is to factor out into their own helper functions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59397 91177308-0d34-0410-b5e6-96231b3b80d8

simplify some instcombine matches by using m_Specific

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59395 91177308-0d34-0410-b5e6-96231b3b80d8

Fix 80-col violation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59394 91177308-0d34-0410-b5e6-96231b3b80d8

add a new m_Specific pattern that matches only if we have a specific Value*.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59393 91177308-0d34-0410-b5e6-96231b3b80d8

Use new m_SelectCst template to eliminate macros.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59392 91177308-0d34-0410-b5e6-96231b3b80d8

add a new template for matching a select between two constants.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59391 91177308-0d34-0410-b5e6-96231b3b80d8

simplify code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59390 91177308-0d34-0410-b5e6-96231b3b80d8