Slightly change the meaning of the reMaterialize target hook when the original
instruction defines subregisters.

Any existing subreg indices on the original instruction are preserved or
composed with the new subreg index.

Also substitute multiple operands mentioning the original register by using the
new MachineInstr::substituteRegister() function. This is necessary because there
will soon be <imp-def> operands added to non read-modify-write partial
definitions. This instruction:

  %reg1234:foo = FLAP %reg1234<imp-def>

will reMaterialize(%reg3333, bar) like this:

  %reg3333:bar-foo = FLAP %reg333:bar<imp-def>

Finally, replace the TargetRegisterInfo pointer argument with a reference to
indicate that it cannot be NULL.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105358 91177308-0d34-0410-b5e6-96231b3b80d8

Update Readme and Makefiles for the new gtest.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105355 91177308-0d34-0410-b5e6-96231b3b80d8

Merge gtest-1.5.0.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105354 91177308-0d34-0410-b5e6-96231b3b80d8

Merge gtest-1.4.0.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105353 91177308-0d34-0410-b5e6-96231b3b80d8

Merge gtest-1.3.0.

OSX users: make sure that CrashReporter is disabled when running unit tests.
Death tests are enabled now so you'll get a ton of message boxes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105352 91177308-0d34-0410-b5e6-96231b3b80d8

Clean up 80 column violations. No functional change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105350 91177308-0d34-0410-b5e6-96231b3b80d8

arm_neon.h emitter now mostly complete for the purposes of initial testing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105349 91177308-0d34-0410-b5e6-96231b3b80d8

Remove the TargetRegisterClass member from CalleeSavedInfo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105344 91177308-0d34-0410-b5e6-96231b3b80d8

Fix comment so it doesn't include comments which are irrelevant to the x86
backend.  Add a FIXME noting what can be fixed here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105342 91177308-0d34-0410-b5e6-96231b3b80d8

Use comments to document non-obvious code rather than
mailing list archives.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105341 91177308-0d34-0410-b5e6-96231b3b80d8

Skip identical instruction while calculating DBG_VALUE range.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105340 91177308-0d34-0410-b5e6-96231b3b80d8

Rename canCombinedSubRegIndex method to something more grammatically correct
and tidy up the comment describing it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105339 91177308-0d34-0410-b5e6-96231b3b80d8

Replace ARM's getCalleeSavedRegClasses with a simpler solution

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105335 91177308-0d34-0410-b5e6-96231b3b80d8

remove trailing whitespace

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105333 91177308-0d34-0410-b5e6-96231b3b80d8

Use local small vector.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105332 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unused function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105325 91177308-0d34-0410-b5e6-96231b3b80d8

Not all entries in the range will have an SUnit. Check for that when looking
for debug information.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105324 91177308-0d34-0410-b5e6-96231b3b80d8

Update the documentation, getCalleeSavedRegClasses is not required anymore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105323 91177308-0d34-0410-b5e6-96231b3b80d8

cleanup

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105322 91177308-0d34-0410-b5e6-96231b3b80d8

Remove uses of getCalleeSavedRegClasses from outside the
backends and removes the virtual declaration. With that out of the way
I should be able to cleanup one backend at a time.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105321 91177308-0d34-0410-b5e6-96231b3b80d8

Pacify recent gcc: remove a pointless const qualifier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105318 91177308-0d34-0410-b5e6-96231b3b80d8

Checkpoint; handle 'int' and 'void' correctly

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105316 91177308-0d34-0410-b5e6-96231b3b80d8

Emit full function prototypes.  Definitions & typedefs to come.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105315 91177308-0d34-0410-b5e6-96231b3b80d8

Enable machine cse of instructions which define physical registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105308 91177308-0d34-0410-b5e6-96231b3b80d8

Checkpoint arm_neon.h generation with tablegen

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105307 91177308-0d34-0410-b5e6-96231b3b80d8

Don't try to custom-lower 64-bit add-with-overflow and friends on x86-32; the
x86 backend currently doesn't know how to handle them.

This doesn't really fix anything because LegalizeTypes doesn't know how to
handle them either.  We do get a better error message, though.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105305 91177308-0d34-0410-b5e6-96231b3b80d8

Fix an obvious mistake: don't change the operands until all of them have been
checked and it is safe to proceed with the changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105304 91177308-0d34-0410-b5e6-96231b3b80d8

Remove outdated README entries.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105303 91177308-0d34-0410-b5e6-96231b3b80d8

Update debug information when breaking anti-dependencies. rdar://7759363

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105300 91177308-0d34-0410-b5e6-96231b3b80d8

Fix comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105297 91177308-0d34-0410-b5e6-96231b3b80d8

DwarfWrite is now smart enough to drop debug value pointing to undefined register.  Update this test to avoid this.

iSel not properly lowring argument into a well formed DBG_VALUE in some cases is a separate issue and not related to the test in this testcase.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105295 91177308-0d34-0410-b5e6-96231b3b80d8

Properly compose subregister indices when coalescing.
The comment about ordering of subreg indices is no longer true.
This exposed a bug in the new substVirtReg method that is also fixed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105294 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unused code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105293 91177308-0d34-0410-b5e6-96231b3b80d8

Ignore line number of debug value in undefined register.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105292 91177308-0d34-0410-b5e6-96231b3b80d8

fix think-o

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105291 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the allocation of shadow space for the Win64 calling convention
in X86FastISel. Patch by Jan Sjodin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105290 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify things a bit more. Fix prototype to use SmallVectorImpl and
change a few SmallVectors to vanilla C arrays.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105289 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the noalias checking so that it doesn't worry about
an argument aliasing itself. Thanks Duncan!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105288 91177308-0d34-0410-b5e6-96231b3b80d8

Keep track of incoming debug value of unused argument.
Radar 7927666.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105285 91177308-0d34-0410-b5e6-96231b3b80d8

Fill in missing support for ISD::FEXP, ISD::FPOWI, and friends.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105283 91177308-0d34-0410-b5e6-96231b3b80d8

Add a FIXME

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105282 91177308-0d34-0410-b5e6-96231b3b80d8

mirror of r105280 changes for LowerInvoke, which uses the same basic logic here

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105281 91177308-0d34-0410-b5e6-96231b3b80d8

When processing function arguments when splitting live ranges across invokes,
handle structs passed by value via an extract/insert pair, as a bitcast
won't work on a struct. rdar://7742824

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105280 91177308-0d34-0410-b5e6-96231b3b80d8

Use SmallVector instead of std::vector.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105279 91177308-0d34-0410-b5e6-96231b3b80d8

Delete unused variables (that weren't even getting expanded).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105278 91177308-0d34-0410-b5e6-96231b3b80d8

Freebsd's sed doesn't support \< in regexps, and GNU sed doesn't
support [[:<:]]. Use beginning-of-line and end-of-line anchors
instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105277 91177308-0d34-0410-b5e6-96231b3b80d8

Refactor some SSE 2 unpack instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105276 91177308-0d34-0410-b5e6-96231b3b80d8

Don't call flush() at a library level which isn't checking for errors
and doesn't know where the output is going.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105274 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a spello affecting platforms where the configure check fails.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105273 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a typo in a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105272 91177308-0d34-0410-b5e6-96231b3b80d8

-retain-symbols-file is not what it seems. Update the makefiles
and configury to use --version-script.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105271 91177308-0d34-0410-b5e6-96231b3b80d8

Fix extra fread after EOF, non-wires-crossed version.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105270 91177308-0d34-0410-b5e6-96231b3b80d8

Fix handling of 'load' nodes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105269 91177308-0d34-0410-b5e6-96231b3b80d8

Debreak test for non-Darwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105257 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR7272: when inlining through a callsite with byval arguments,
the newly created allocas may be used by inlined calls, so these
need to have their tail call flags cleared.  Fixes PR7272.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105255 91177308-0d34-0410-b5e6-96231b3b80d8

Add a test for the llvm-gcc commit in r90200.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105253 91177308-0d34-0410-b5e6-96231b3b80d8

fix PR6623: when optimizing for size, don't inline memcpy/memsets
that are too large.  This causes the freebsd bootloader to be too
large apparently.

It's unclear if this should be an -Os or -Oz thing.  Thoughts welcome.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105228 91177308-0d34-0410-b5e6-96231b3b80d8

upgrade and filecheckize this test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105227 91177308-0d34-0410-b5e6-96231b3b80d8

the 'limit' argument to FindOptimalMemOpLowering is unsigned, not uint64_t.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105226 91177308-0d34-0410-b5e6-96231b3b80d8

revert r105223 which broke all my testing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105225 91177308-0d34-0410-b5e6-96231b3b80d8

Fix count so that it doesn't make an extra fread call after
EOF is detected.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105223 91177308-0d34-0410-b5e6-96231b3b80d8

Avoid swap when a copy suffices.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105220 91177308-0d34-0410-b5e6-96231b3b80d8

The memcpy intrinsic only takes i8* for %src and %dst, so cast them to that
first. Fixes PR7265.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105206 91177308-0d34-0410-b5e6-96231b3b80d8

Use `llvm::next' instead of `next' to make VC++ 2010 happy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105168 91177308-0d34-0410-b5e6-96231b3b80d8

Allow for creation of clang DeclNodes tables.

The StmtNodes generator has been generalized to allow for the
creation of DeclNodes tables as well, and another emitter was
added for DeclContexts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105164 91177308-0d34-0410-b5e6-96231b3b80d8

Some A9 load/store cleanups

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105109 91177308-0d34-0410-b5e6-96231b3b80d8

Some rough approximations for load/stores on A9

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105108 91177308-0d34-0410-b5e6-96231b3b80d8

NEON/VFP stuff can be issued only via Pipe1 on A9

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105107 91177308-0d34-0410-b5e6-96231b3b80d8

Add some integer instruction itineraries for A9

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105106 91177308-0d34-0410-b5e6-96231b3b80d8

Reorder some code in SelectionDAGBuilder.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105105 91177308-0d34-0410-b5e6-96231b3b80d8

SelectionDAG shouldn't have a FunctionLoweringInfo member. RegsForValue
shouldn't have a TargetLoweringInfo member. And FunctionLoweringInfo::set
doesn't needs its EnableFastISel argument.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105101 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unused function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105100 91177308-0d34-0410-b5e6-96231b3b80d8

Document aggregate operation constant expressions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105098 91177308-0d34-0410-b5e6-96231b3b80d8

Fix typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105096 91177308-0d34-0410-b5e6-96231b3b80d8

Remove schedule-livein-copies. It's not being used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105095 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR7193: if sibling call address can take a register, make sure there are enough registers available by counting inreg arguments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105092 91177308-0d34-0410-b5e6-96231b3b80d8

Handle composed subreg indices when processing REQ_SEQUENCE instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105066 91177308-0d34-0410-b5e6-96231b3b80d8

Doh. Machine LICM is re-initializing the CSE map over and over. Patch by Anna Zaks. rdar://8037934.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105065 91177308-0d34-0410-b5e6-96231b3b80d8

Emit TargetRegisterInfo::composeSubRegIndices().
Also verify that all subregister indices compose unambiguously.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105064 91177308-0d34-0410-b5e6-96231b3b80d8

Merge the SystemZ subreg_even32 SubRegIndex into subreg_32bit. The SubRegIndices
were overspecified when inheriting sub-subregisters, for instance:

R0Q:subreg_even32 = R0Q:subreg_32bit = R0Q:subreg_even:subreg_32bit.

This meant that composeSubRegIndices(subreg_even, subreg_32bit) was ambiguous.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105063 91177308-0d34-0410-b5e6-96231b3b80d8

Fix some latency computation bugs: if the use is not a machine opcode do not just return zero.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105061 91177308-0d34-0410-b5e6-96231b3b80d8

Schedule high latency instructions for latency reduction even if they are not vfp / NEON instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105060 91177308-0d34-0410-b5e6-96231b3b80d8

Fix comment typos.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105059 91177308-0d34-0410-b5e6-96231b3b80d8

More SSE 1 & 2 merge, this time with logical instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105014 91177308-0d34-0410-b5e6-96231b3b80d8

Fix AliasDebugger to be aware of operand values too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105012 91177308-0d34-0410-b5e6-96231b3b80d8

Add lint checks for function attributes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105009 91177308-0d34-0410-b5e6-96231b3b80d8

Split the logic behind CastInst::isNoopCast into a separate static function,
as is done with most other cast opcode predicates.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105008 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a comment; vectors are not a special case here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105006 91177308-0d34-0410-b5e6-96231b3b80d8

MC/X86: Add alias for movzx.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105005 91177308-0d34-0410-b5e6-96231b3b80d8

MC/X86: Add alias for fwait.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105001 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the use of x86 control and debug registers so that the assertion failure in
getX86RegNum() does not happen.  Patch by Shantonu Sen!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104994 91177308-0d34-0410-b5e6-96231b3b80d8

Fix Data Layout description of floating point.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104993 91177308-0d34-0410-b5e6-96231b3b80d8

Add missing space; works for me.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104992 91177308-0d34-0410-b5e6-96231b3b80d8

Add a TargetRegisterInfo::composeSubRegIndices hook with a default
implementation that is correct for most targets. Tablegen will override where
needed.

Add MachineOperand::subst{Virt,Phys}Reg methods that correctly handle existing
subreg indices when sustituting registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104985 91177308-0d34-0410-b5e6-96231b3b80d8

correct retattr

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104980 91177308-0d34-0410-b5e6-96231b3b80d8

Cosmetic cleanup. No functional change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104974 91177308-0d34-0410-b5e6-96231b3b80d8

Fix lint's memcpy and memmove checks, and its basic block traversal.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104970 91177308-0d34-0410-b5e6-96231b3b80d8

make sure accesses to set up the jmpbuf don't get moved after it by the scheduler. Add a missing \n.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104967 91177308-0d34-0410-b5e6-96231b3b80d8

Fix more whitespace to be consistent with AsmPrinter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104963 91177308-0d34-0410-b5e6-96231b3b80d8

Fix whitespace to be more consistent with AsmPrinter's style.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104962 91177308-0d34-0410-b5e6-96231b3b80d8