add dyn_cast_or_null tests, exclude invalid dyn_cast test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109111 91177308-0d34-0410-b5e6-96231b3b80d8

tidy up

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109110 91177308-0d34-0410-b5e6-96231b3b80d8

add dyn_cast tests and beef up others a bit

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109109 91177308-0d34-0410-b5e6-96231b3b80d8

fit in 80 columns

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109108 91177308-0d34-0410-b5e6-96231b3b80d8

use cascading operator-> feature

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109104 91177308-0d34-0410-b5e6-96231b3b80d8

mass elimination of reliance on automatic iterator dereferencing

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109103 91177308-0d34-0410-b5e6-96231b3b80d8

Increase the max physreg size.  Patch by Pekka Jääskeläinen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109102 91177308-0d34-0410-b5e6-96231b3b80d8

simplify

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109101 91177308-0d34-0410-b5e6-96231b3b80d8

do not access arguments via low-level interface, do not multiply dereference use_iterators

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109100 91177308-0d34-0410-b5e6-96231b3b80d8

pass dereferenced iterator to dyn_cast

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109099 91177308-0d34-0410-b5e6-96231b3b80d8

pass dereferenced iterator to dyn_cast

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109098 91177308-0d34-0410-b5e6-96231b3b80d8

use -> instead of (*).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109094 91177308-0d34-0410-b5e6-96231b3b80d8

cache dereferenced iterator

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109093 91177308-0d34-0410-b5e6-96231b3b80d8

undo 80 column trespassing I caused

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109092 91177308-0d34-0410-b5e6-96231b3b80d8

Mark an assert-only variable as used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109091 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the generated file name for CMake.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109090 91177308-0d34-0410-b5e6-96231b3b80d8

Add new RegionInfo pass.

The RegionInfo pass detects single entry single exit regions in a function,
where a region is defined as any subgraph that is connected to the remaining
graph at only two spots.
Furthermore an hierarchical region tree is built.
Use it by calling "opt -regions analyze" or "opt -view-regions".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109089 91177308-0d34-0410-b5e6-96231b3b80d8

Attempt to fix linking issues with CMake. Please review other CMake users,
especially on other platforms. Is there a better way to fix this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109084 91177308-0d34-0410-b5e6-96231b3b80d8

Re-apply r109079 with fix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109083 91177308-0d34-0410-b5e6-96231b3b80d8

Revert r109079, which broke a lot of CodeGen tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109082 91177308-0d34-0410-b5e6-96231b3b80d8

Update CMake files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109081 91177308-0d34-0410-b5e6-96231b3b80d8

Initial modifications to MCAssembler and TargetMachine for the MCJIT.

Patch by Olivier Meurant!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109080 91177308-0d34-0410-b5e6-96231b3b80d8

Initialize RegLimit only when register pressure is being tracked.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109079 91177308-0d34-0410-b5e6-96231b3b80d8

Custom lower the memory barrier instructions and add support
for lowering without sse2.  Add a couple of new testcases.

Fixes a few libgomp tests and latent bugs.  Remove a few todos.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109078 91177308-0d34-0410-b5e6-96231b3b80d8

Fix constant island pass's handling of tBR_JTr. The offset of the instruction does not have to be 4-byte aligned. Rather, it's the offset + 2 that must be aligned since the instruction expands into:
        mov     pc, r1
        .align  2
LJTI0_0_0:
        .long    LBB0_14

This fixes rdar://8213383. No test case since it's not possible to come up with a suitable small one.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109076 91177308-0d34-0410-b5e6-96231b3b80d8

If 'other' was empty 'overlapsFrom(other, other.begin());' will segfault. This avoids that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109075 91177308-0d34-0410-b5e6-96231b3b80d8

lit: Add some example tests for previous commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109071 91177308-0d34-0410-b5e6-96231b3b80d8

80-columns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109070 91177308-0d34-0410-b5e6-96231b3b80d8

Make fast isel win64-aware w.r.t. call-clobbered regs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109069 91177308-0d34-0410-b5e6-96231b3b80d8

More register pressure aware scheduling work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109064 91177308-0d34-0410-b5e6-96231b3b80d8

Add more 256-bit forms for a bunch of regular AVX instructions
Add 64-bit (GR64) versions of some instructions (which are not
described in their SSE forms, but are described in AVX)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109063 91177308-0d34-0410-b5e6-96231b3b80d8

lit: Add support for 'REQUIRES: feature-one, feature-two, ...' in the
integrated-test formats (sh and tcl style). The particular features which get
recognized are up to the test suite itself to define.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109062 91177308-0d34-0410-b5e6-96231b3b80d8

Make NamedMDNode not be a subclass of Value, and simplify the interface
for creating and populating NamedMDNodes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109061 91177308-0d34-0410-b5e6-96231b3b80d8

Fixes win64. It was broken by a previous patch where I missed the !isWin64
and then forced every register to be a vr128 on win64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109060 91177308-0d34-0410-b5e6-96231b3b80d8

Add INSTANTIATE_AG_PASS, which combines RegisterPass<> with RegisterAnalysisGroup<> for pass registration.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109058 91177308-0d34-0410-b5e6-96231b3b80d8

For ARM/Darwin, add a dwarf entry indicating whether a function is arm or thumb
rdar://8202967

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109057 91177308-0d34-0410-b5e6-96231b3b80d8

add some rough support for making mcinst lowering work without an
asmprinter or mangler around.  This is option #B for killing off
X86InstrInfo::GetInstSizeInBytes.  Option #A (killing
"needsexactsize") was sent for consideration to llvmdev.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109056 91177308-0d34-0410-b5e6-96231b3b80d8

First stab at updating the documentation for INITIALIZE_PASS().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109055 91177308-0d34-0410-b5e6-96231b3b80d8

Baby steps towards ARM fast-isel.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109047 91177308-0d34-0410-b5e6-96231b3b80d8

Fix batch of converting RegisterPass<> to INTIALIZE_PASS().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109045 91177308-0d34-0410-b5e6-96231b3b80d8

Hack around extracts that aren't easy to process.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109043 91177308-0d34-0410-b5e6-96231b3b80d8

tidy up

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109042 91177308-0d34-0410-b5e6-96231b3b80d8

Add missing AVX convert instructions. Those instructions are not described in their SSE forms (although they exist), but add the AVX forms anyway, so the assembler can benefit from it

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109039 91177308-0d34-0410-b5e6-96231b3b80d8

tidy up.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109038 91177308-0d34-0410-b5e6-96231b3b80d8

80 column and trailing whitespace cleanup

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109037 91177308-0d34-0410-b5e6-96231b3b80d8

Add some debug output to help diagnose PR7689.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109036 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a couple issues with Win64 ABI

1) all registers were spilled as xmm, regardless of actual size
2) win64 abi doesn't do the varargs-size-in-%al thing

Still to look into:

xmm6-15 are marked as clobbered by call instructions on win64 even though they aren't.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109035 91177308-0d34-0410-b5e6-96231b3b80d8

Add the INITIALIZE_PASS macro.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109034 91177308-0d34-0410-b5e6-96231b3b80d8

Avoid AVX instructions to be selected instead of its SSE form

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109032 91177308-0d34-0410-b5e6-96231b3b80d8

NamedMDNode is never an operand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109031 91177308-0d34-0410-b5e6-96231b3b80d8

Disallow null as a named metadata operand.
Make MDNode::destroy private.
Fix the one thing that used MDNode::destroy, outside of MDNode itself.

One should never delete or destroy an MDNode explicitly. MDNodes
implicitly go away when there are no references to them (implementation
details aside).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109028 91177308-0d34-0410-b5e6-96231b3b80d8

Use System/DataTypes.h instead of stdint.h, which isn't portable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109026 91177308-0d34-0410-b5e6-96231b3b80d8

Use TrackingVH instead of WeakVH for NamedMDNode's operands, since nodes
referenced by NamedMDNodes shouldn't be deleted.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109021 91177308-0d34-0410-b5e6-96231b3b80d8

Tidy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109020 91177308-0d34-0410-b5e6-96231b3b80d8

Move the smarts of AnalysisGroup registration into PassRegistry.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109019 91177308-0d34-0410-b5e6-96231b3b80d8

Delete an obsolete comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109017 91177308-0d34-0410-b5e6-96231b3b80d8

strip out the 2.7 release notes, this really is the 2.8 release notes
now. Add a few items like the fpstackifier improvements.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109013 91177308-0d34-0410-b5e6-96231b3b80d8

Fix calling convention on ARM if vfp2+ is enabled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109009 91177308-0d34-0410-b5e6-96231b3b80d8

appease Validator

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109007 91177308-0d34-0410-b5e6-96231b3b80d8

add info on operand rotation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109006 91177308-0d34-0410-b5e6-96231b3b80d8

Pulling out previous patch, must've run the tests in
the wrong directory.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109005 91177308-0d34-0410-b5e6-96231b3b80d8

Lower MEMBARRIER on x86 and support processors without SSE2.

Fixes a pile of libgomp failures in the llvm-gcc testsuite due
to the libcall not existing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109004 91177308-0d34-0410-b5e6-96231b3b80d8

Changed OStream templates to functions on raw_ostream, removed the unused "renderWarnings" function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109003 91177308-0d34-0410-b5e6-96231b3b80d8

Add AVX only vzeroall and vzeroupper instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109002 91177308-0d34-0410-b5e6-96231b3b80d8

restore aesthetics

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109001 91177308-0d34-0410-b5e6-96231b3b80d8

Teach bottom up pre-ra scheduler to track register pressure. Work in progress.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108991 91177308-0d34-0410-b5e6-96231b3b80d8

Turn this test on again after the llvm-gcc change in r108986.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108987 91177308-0d34-0410-b5e6-96231b3b80d8

Update this to use a "valid" alignment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108985 91177308-0d34-0410-b5e6-96231b3b80d8

Add new AVX vpermilps, vpermilpd and vperm2f128 instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108984 91177308-0d34-0410-b5e6-96231b3b80d8

Add new AVX vmaskmov instructions, and also fix the VEX encoding bits to support it

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108983 91177308-0d34-0410-b5e6-96231b3b80d8

Give MDNode printing has access to the current Module in more
cases. This will be needed when function-local metadata can
appear in places that aren't intrinsic function arguments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108971 91177308-0d34-0410-b5e6-96231b3b80d8

Change the createSpiller interface to take a MachineFunctionPass argument.

The spillers can pluck the analyses they need from the pass reference.

Switch some never-null pointers to references.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108969 91177308-0d34-0410-b5e6-96231b3b80d8

Make this code a little more readable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108968 91177308-0d34-0410-b5e6-96231b3b80d8

Use DebugLocs instead of MDNodes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108967 91177308-0d34-0410-b5e6-96231b3b80d8

Move the handling of PassRegistrationListener's to PassRegistry.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108966 91177308-0d34-0410-b5e6-96231b3b80d8

Add new AVX vextractf128 instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108964 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108962 91177308-0d34-0410-b5e6-96231b3b80d8

Don't look up the "dbg" metadata kind by name.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108961 91177308-0d34-0410-b5e6-96231b3b80d8

make asmprinter optional, even though passing in null will cause things to explode right now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108955 91177308-0d34-0410-b5e6-96231b3b80d8

Added support to MachO.h for many defines and structures that are needed
to Parse mach-o files. All defines have been renamed to not conflict with
#defines in mach header files, all structures were left named the same but
are in the llvm::MachO namespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108953 91177308-0d34-0410-b5e6-96231b3b80d8

continue pushing dependencies around.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108952 91177308-0d34-0410-b5e6-96231b3b80d8

reduce X86MCInstLower dependencies on asmprinter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108950 91177308-0d34-0410-b5e6-96231b3b80d8

pass around MF, not MMI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108949 91177308-0d34-0410-b5e6-96231b3b80d8

Rename removeAllMetadata to clearMetadataHashEntries and simplify
it to just do the things that need to be done when an instruction
is deleted.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108948 91177308-0d34-0410-b5e6-96231b3b80d8

cleanups.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108947 91177308-0d34-0410-b5e6-96231b3b80d8

move two asmprinter methods into the asmprinter .cpp file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108945 91177308-0d34-0410-b5e6-96231b3b80d8

Implement loop splitting analysis.
Determine which loop exit blocks need a 'pre-exit' block inserted.
Recognize when this would be impossible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108941 91177308-0d34-0410-b5e6-96231b3b80d8

Remove an obsolete comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108940 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for remapping metadata kind IDs when reading in a
bitcode file, so that two bitcode files where the same metadata kind
name happens to have been assigned a different ID can still be
linked together.

Eliminate the restriction that metadata kind IDs can't be 0.

Change MD_dbg from 1 to 0, because we can now, and because it's
less mysterious that way.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108939 91177308-0d34-0410-b5e6-96231b3b80d8

Include some tests for the recently committed ELF section directive
handlers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108938 91177308-0d34-0410-b5e6-96231b3b80d8

Fix test for switch statements and increase
threshold a bit per experimentation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108935 91177308-0d34-0410-b5e6-96231b3b80d8

there is now no reason to link in TARGETS_TO_BUILD since we list
arm explicitly.  X86 and ARM are the only two targets that support
disassembly, so our explicit list is enough.  These other targets
weren't getting pulled in anyway though, since there were no
references to their symbols.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108934 91177308-0d34-0410-b5e6-96231b3b80d8

fix edis to only try to link in the x86 parts if the x86 backend is
enabled.  Add direct ARM support.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108933 91177308-0d34-0410-b5e6-96231b3b80d8

Move more functionality from Pass.cpp to PassRegistry.cpp.  This global will go away eventually, but for now we still need it around.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108932 91177308-0d34-0410-b5e6-96231b3b80d8

Fix edis makefile

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108931 91177308-0d34-0410-b5e6-96231b3b80d8

prune #includes a little.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108929 91177308-0d34-0410-b5e6-96231b3b80d8

Add some more handlers for ELF section directives.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108928 91177308-0d34-0410-b5e6-96231b3b80d8

Formatting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108926 91177308-0d34-0410-b5e6-96231b3b80d8

fix DISABLE_EDIS

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108925 91177308-0d34-0410-b5e6-96231b3b80d8

Add the rest of the SHT_* values as defined in the System V ABI
ELF specification.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108924 91177308-0d34-0410-b5e6-96231b3b80d8