PR1601: etags not configured correctly
Resolving this by deleting vestigal etags remnants.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42460 91177308-0d34-0410-b5e6-96231b3b80d8

Enabling new condition code modeling scheme.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42459 91177308-0d34-0410-b5e6-96231b3b80d8

Do not ignore packed member size while selecting union type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42458 91177308-0d34-0410-b5e6-96231b3b80d8

Teach SplitVectorOp how to split INSERT_VECTOR_ELT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42457 91177308-0d34-0410-b5e6-96231b3b80d8

Update how to release document.
Add release version to getting started guide.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42454 91177308-0d34-0410-b5e6-96231b3b80d8

If two instructions are both two-address code, favors (schedule closer to
terminator) the one that has a CopyToReg use. This fixes
2006-05-11-InstrSched.ll with -new-cc-modeling-scheme.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42453 91177308-0d34-0410-b5e6-96231b3b80d8

really fix PR1581, thanks to Daniel Dunbar for pointing
this out.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42448 91177308-0d34-0410-b5e6-96231b3b80d8

Make Value::getNameLen not crash on an empty name, fixing PR1712.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42444 91177308-0d34-0410-b5e6-96231b3b80d8

Remove a poor scheduling heuristic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42443 91177308-0d34-0410-b5e6-96231b3b80d8

Trim some unneeded fields.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42442 91177308-0d34-0410-b5e6-96231b3b80d8

Record latest work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42441 91177308-0d34-0410-b5e6-96231b3b80d8

Fix long double -> uint64 conversion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42440 91177308-0d34-0410-b5e6-96231b3b80d8

minor long double related changes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42439 91177308-0d34-0410-b5e6-96231b3b80d8

Make the checks for DW_FORM_data4 consistent with the others, and
add more such code for DIEDwarfLabel::SizeOf and DIEObjectLabel::SizeOf.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42435 91177308-0d34-0410-b5e6-96231b3b80d8

Use 32-bit data directives for DW_FORM_data4 format data, even on
targets with 64-bit addresses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42434 91177308-0d34-0410-b5e6-96231b3b80d8

Refactor the memcpy lowering for the x86 target.

The only generated code difference is that now we call memcpy when
the size of the array is unknown. This matches GCC behavior and is
better since the run time value can be arbitrarily large.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42433 91177308-0d34-0410-b5e6-96231b3b80d8

Stop inventing new words. :-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42429 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unneeded #include.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42428 91177308-0d34-0410-b5e6-96231b3b80d8

Have PostDomTree use the newly templated DFSPass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42427 91177308-0d34-0410-b5e6-96231b3b80d8

Pessimisively assume ADJCALLSTACKDOWN / ADJCALLSTACKUP (which becomes sub / add) clobbers EFLAGS.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42426 91177308-0d34-0410-b5e6-96231b3b80d8

Add sqrt and powi intrinsics for long double.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42423 91177308-0d34-0410-b5e6-96231b3b80d8

Don't do SRA for unions with long double fields.
Fixes a SWB crash.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42422 91177308-0d34-0410-b5e6-96231b3b80d8

Convert DFSPass into a templated friend function, in preparation for making it common to DomTree and PostDomTree.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42420 91177308-0d34-0410-b5e6-96231b3b80d8

TargetAsmInfo::getAddressSize() was incorrect for x86-64 and 64-bit targets
other than PPC64. Instead of fixing it, just remove it and fix all the
places that use it to use TargetData::getPointerSize() instead, as there
aren't very many. Most of the references were in DwarfWriter.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42419 91177308-0d34-0410-b5e6-96231b3b80d8

CollectorMetadata abstractly describes stack maps for a function.
It includes:

 - location and of each safe point in machine code (identified by a
   label)
 - location of each root within the stack frame (identified by an
   offset), including the metadata tag provided to llvm.gcroot in
   the user program
 - size of the stack frame (for collectors which want to cheat on
   stack crawling :)
 - and eventually will include liveness

It is to be populated by back-ends during code-generation.

CollectorModuleMetadata aggregates this information across the
entire module.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42418 91177308-0d34-0410-b5e6-96231b3b80d8

Use GR64 in 64-bit mode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42417 91177308-0d34-0410-b5e6-96231b3b80d8

My previous Registry.h header, as well as Collectors.h, which is the
registry for dynamically-loaded garbage collection compiler plugins.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42415 91177308-0d34-0410-b5e6-96231b3b80d8

GarbageCollection.html is expanded to encompass the coming
capabilities. This is a major rewrite and is easier to read en toto
rather than patchwise.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42414 91177308-0d34-0410-b5e6-96231b3b80d8

Doh. Calls clobber EFLAGS.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42413 91177308-0d34-0410-b5e6-96231b3b80d8

Avoid inserting a live register more than once.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42410 91177308-0d34-0410-b5e6-96231b3b80d8

Couple of fixes to mention bunzip2 and make instructions more clear.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42407 91177308-0d34-0410-b5e6-96231b3b80d8

While searching for appropriate place for temporaries, do not over-incerement iterator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42406 91177308-0d34-0410-b5e6-96231b3b80d8

Mention Loop Index Split

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42405 91177308-0d34-0410-b5e6-96231b3b80d8

new testcase for PR1708

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42398 91177308-0d34-0410-b5e6-96231b3b80d8

Ignore redundant constraints

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42397 91177308-0d34-0410-b5e6-96231b3b80d8

Build the correct range for loops with unusual bounds. Fix from Jay Foad.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42394 91177308-0d34-0410-b5e6-96231b3b80d8

No, really, it *is* SSSE3. ;-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42393 91177308-0d34-0410-b5e6-96231b3b80d8

SSSE3 -> SSE3.  Reported by Alex Kellett.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42392 91177308-0d34-0410-b5e6-96231b3b80d8

Grammer fix reported by Alex Kellett.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42391 91177308-0d34-0410-b5e6-96231b3b80d8

Silence a compiler warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42389 91177308-0d34-0410-b5e6-96231b3b80d8

Boogs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42388 91177308-0d34-0410-b5e6-96231b3b80d8

Be smarter about which node to force schedule. Reduce # of duplications + copies; Added statistics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42387 91177308-0d34-0410-b5e6-96231b3b80d8

Remove debugging.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42385 91177308-0d34-0410-b5e6-96231b3b80d8

Backtracking only when it won't create a cycle.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42384 91177308-0d34-0410-b5e6-96231b3b80d8

Make temporaries explicit to avoid premature
destruction of compiler-created ones.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42383 91177308-0d34-0410-b5e6-96231b3b80d8

Updating LLVM.xcodeproj.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42382 91177308-0d34-0410-b5e6-96231b3b80d8

Oops. Forgot this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42377 91177308-0d34-0410-b5e6-96231b3b80d8

- Move getPhysicalRegisterRegClass() from ScheduleDAG to MRegisterInfo.
- Added ability to emit cross class register copies to the BBRU scheduler.
- More aggressive backtracking.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42375 91177308-0d34-0410-b5e6-96231b3b80d8

Whitespace cleanup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42374 91177308-0d34-0410-b5e6-96231b3b80d8

Whitespace and compiler warning cleanup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42373 91177308-0d34-0410-b5e6-96231b3b80d8

- Added MRegisterInfo::getCrossCopyRegClass() hook. For register classes where reg to reg copies are not possible, this returns another register class which registers in the specified register class can be copied to (and copy back from).
- X86 copyRegToReg() now supports copying between EFLAGS and GR32 / GR64 registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42372 91177308-0d34-0410-b5e6-96231b3b80d8

Some assemblers do not recognize aliases pushfd, pushfq, popfd, and popfq. Just emit them as pushf and popf.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42371 91177308-0d34-0410-b5e6-96231b3b80d8

Modernize fabs.ll, add long double.  Add tests
for direct codegen of fsin/fcos.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42369 91177308-0d34-0410-b5e6-96231b3b80d8

Enable codegen for long double abs, sin, cos

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42368 91177308-0d34-0410-b5e6-96231b3b80d8

Added C and Ocaml bindings for functions, basic blocks, and
instruction creation. No support yet for instruction introspection.

Also eliminated allocas from the Ocaml bindings for portability,
and avoided unnecessary casts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42367 91177308-0d34-0410-b5e6-96231b3b80d8

Fix f80 UNDEF.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42359 91177308-0d34-0410-b5e6-96231b3b80d8

X86 -> X86-32 in appropriate places.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42357 91177308-0d34-0410-b5e6-96231b3b80d8

Various cleanups.  Especially, EH is turned on by default!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42356 91177308-0d34-0410-b5e6-96231b3b80d8

ok ok we get it.  CBE and vectors don't like each other yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42355 91177308-0d34-0410-b5e6-96231b3b80d8

be less redundantly redundant.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42354 91177308-0d34-0410-b5e6-96231b3b80d8

Test the C front-end, not the C++ front-end.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42350 91177308-0d34-0410-b5e6-96231b3b80d8

make old crappy browsers produce less crappy output :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42349 91177308-0d34-0410-b5e6-96231b3b80d8

Typos: POPQ -> POPFQ, POPD -> POPFD.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42348 91177308-0d34-0410-b5e6-96231b3b80d8

move PR1160 here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42347 91177308-0d34-0410-b5e6-96231b3b80d8

Allow copyRegToReg to emit cross register classes copies.
Tested with "make check"!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42346 91177308-0d34-0410-b5e6-96231b3b80d8

move PR1264 here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42345 91177308-0d34-0410-b5e6-96231b3b80d8

noone uses etags.  Connected to PR1601

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42344 91177308-0d34-0410-b5e6-96231b3b80d8

we support attribute(noinline) now :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42343 91177308-0d34-0410-b5e6-96231b3b80d8

update bugs list

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42342 91177308-0d34-0410-b5e6-96231b3b80d8

now with more prose.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42341 91177308-0d34-0410-b5e6-96231b3b80d8

Test that local variables are aligned as the user requested.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42338 91177308-0d34-0410-b5e6-96231b3b80d8

Add pushf{d|q}, popf{d|q} to push and pop EFLAGS register.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42335 91177308-0d34-0410-b5e6-96231b3b80d8

translateX86CC updates the last two operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42333 91177308-0d34-0410-b5e6-96231b3b80d8

Correctly restore stack pointer after realignment in main() on Cygwin/Mingw32

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42332 91177308-0d34-0410-b5e6-96231b3b80d8

Fix small bug in operator== for iterators

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42331 91177308-0d34-0410-b5e6-96231b3b80d8

Remove no-longer-used variable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42329 91177308-0d34-0410-b5e6-96231b3b80d8

Make APFloat->int conversions deterministic even in
cases with undefined behavior.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42328 91177308-0d34-0410-b5e6-96231b3b80d8

explain why not vector<bool>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42324 91177308-0d34-0410-b5e6-96231b3b80d8

Missing load / store folding entries.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42323 91177308-0d34-0410-b5e6-96231b3b80d8

Partly revert invalid r41774

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42322 91177308-0d34-0410-b5e6-96231b3b80d8

Grammar fix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42318 91177308-0d34-0410-b5e6-96231b3b80d8

More explicit keywords.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42316 91177308-0d34-0410-b5e6-96231b3b80d8

Add a newline to the end of this file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42314 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a typo in a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42313 91177308-0d34-0410-b5e6-96231b3b80d8

New style x87 cmp instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42312 91177308-0d34-0410-b5e6-96231b3b80d8

Handle multiple induction variables.
This fixes PR714.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42309 91177308-0d34-0410-b5e6-96231b3b80d8

When both x/y and x%y are needed (x and y both scalar integer), compute
both results with a single div or idiv instruction. This uses new X86ISD
nodes for DIV and IDIV which are introduced during the legalize phase
so that the SelectionDAG's CSE can automatically eliminate redundant
computations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42308 91177308-0d34-0410-b5e6-96231b3b80d8

Do not reserve DOM check for GetElementPtrInst.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42306 91177308-0d34-0410-b5e6-96231b3b80d8

Some tests for APFloat conversions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42303 91177308-0d34-0410-b5e6-96231b3b80d8

Forgot to check in the changes. Fix test case so it doesn't break with any scheduling changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42302 91177308-0d34-0410-b5e6-96231b3b80d8

doh..

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42300 91177308-0d34-0410-b5e6-96231b3b80d8

Add transformation to update loop interation space. Now,
for (i=A; i<N; i++) {
  if (i < X && i > Y)
    do_something();
}

is transformed into

U=min(N,X); L=max(A,Y);
for (i=L;i<U;i++)
  do_somethihg();

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42299 91177308-0d34-0410-b5e6-96231b3b80d8

Fix long double<->shorter FP type conversions
of zero, infinity, and NaNs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42298 91177308-0d34-0410-b5e6-96231b3b80d8

Move the setOperationAction(ISD::DEBUG_LOC, MVT::Other, Expand) and
the check to see if the assembler supports .loc from X86TargetLowering
into the superclass TargetLowering.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42297 91177308-0d34-0410-b5e6-96231b3b80d8

Fix spelling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42296 91177308-0d34-0410-b5e6-96231b3b80d8

Add missing end-of-file newlines.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42294 91177308-0d34-0410-b5e6-96231b3b80d8

Fill in the sections about my contributions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42286 91177308-0d34-0410-b5e6-96231b3b80d8

Added support for new condition code modeling scheme (i.e. physical register dependency). These are a bunch of instructions that are duplicated so the x86 backend can support both the old and new schemes at the same time. They will be deleted after
all the kinks are worked out.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42285 91177308-0d34-0410-b5e6-96231b3b80d8

Added major new capabilities to scheduler (only BURR for now) to support physical register dependency. The BURR scheduler can now backtrace and duplicate instructions in order to avoid "expensive / impossible to copy" values (e.g. status flag EFLAGS for x86) from being clobbered.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42284 91177308-0d34-0410-b5e6-96231b3b80d8

New temporary option -new-cc-modeling-scheme to test the new cc modeling scheme.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42283 91177308-0d34-0410-b5e6-96231b3b80d8