Fix X86's isTruncateFree to not claim that truncate to i1 is free. This fixes Bill's testcase that failed for r48491.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48542 91177308-0d34-0410-b5e6-96231b3b80d8

Upgrade tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48538 91177308-0d34-0410-b5e6-96231b3b80d8

Upgrade tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48536 91177308-0d34-0410-b5e6-96231b3b80d8

add some convenience methods for creating GEP instructions and
struct types.  Patch by David Chisnall, with some tweaks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48531 91177308-0d34-0410-b5e6-96231b3b80d8

Upgrade tests to not use llvm-upgrade.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48530 91177308-0d34-0410-b5e6-96231b3b80d8

Upgrade tests to not use llvm-upgrade.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48529 91177308-0d34-0410-b5e6-96231b3b80d8

C bindings for Module-, Function-, and BasicBlock::iterator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48528 91177308-0d34-0410-b5e6-96231b3b80d8

Remove llvm-upgrade and update tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48527 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed a coalescer bug caused by a typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48526 91177308-0d34-0410-b5e6-96231b3b80d8

C and Objective Caml bindings for the various getParent methods of the IR.

Based on Erick Tryzelaar's patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48523 91177308-0d34-0410-b5e6-96231b3b80d8

Fix live variables issues:
1. If part of a register is re-defined, an implicit kill and an implicit def are added to denote read / mod / write. However, this should only be necessary if the register is actually read later. This is a performance issue.
2. If a sub-register is being defined, and it doesn't have a previous use, do not add a implicit kill to the last use of a super-register:
   = EAX, AX<imp-use,kill>
...
AX =
In this case, EAX is live but AX is killed, this is wrong and will cause the coalescer to do bad things.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48521 91177308-0d34-0410-b5e6-96231b3b80d8

Do not use virtual function to identify an analysis pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48520 91177308-0d34-0410-b5e6-96231b3b80d8

On Darwin, GCC issues a ".globl" for something that has a "visibility protected"
attribute instead of ".protected".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48516 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a x86-64 isel lowering bug that's been around forever. A x86-64 varargs function implicitly reads X86::AL, don't clobber it!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48515 91177308-0d34-0410-b5e6-96231b3b80d8

Note that gcc 4.0.1 will trip internal LLVM asserts (e.g., pred_iterator) if compiling
for Release with optimization levels greater than -O0.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48513 91177308-0d34-0410-b5e6-96231b3b80d8

It might be nice to have this run as x86 on non-x86 platforms...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48511 91177308-0d34-0410-b5e6-96231b3b80d8

Temporarily revert r48491. It's breaking  test/CodeGen/X86/xorl.ll.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48510 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR 2160 by making sure arguments to external functions get marked as pointing to anything

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48509 91177308-0d34-0410-b5e6-96231b3b80d8

Do not pass -g flag when compiling tests, so remove the C.Flags. This only happens if you have a debug build of llvm.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48498 91177308-0d34-0410-b5e6-96231b3b80d8

Make conversions of i8/i16 to ppcf128 work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48493 91177308-0d34-0410-b5e6-96231b3b80d8

Dial down gcc's warnings: don't use 0UL when 0U suffices (and when the
variables and methods themselves only use unsigned.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48492 91177308-0d34-0410-b5e6-96231b3b80d8

Target independent DAG transform to use truncate for field extraction + sign extend on targets where this is profitable. Passes nightly on x86-64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48491 91177308-0d34-0410-b5e6-96231b3b80d8

Rewrite code that propagate isDead information after a dead copy is coalesced. This remove some ugly spaghetti code and fixed a number of subtle bugs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48490 91177308-0d34-0410-b5e6-96231b3b80d8

Upgrade tests to not use llvm-upgrade.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48484 91177308-0d34-0410-b5e6-96231b3b80d8

Upgrade tests to not use llvm-upgrade.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48483 91177308-0d34-0410-b5e6-96231b3b80d8

Get rid of compilation warnings.  Per Devang.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48478 91177308-0d34-0410-b5e6-96231b3b80d8

Identify Analysis pass.
Do not run analysis pass again if analysis info is still available.
This fixes PR1441.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48476 91177308-0d34-0410-b5e6-96231b3b80d8

Update heuritics that estimates cost of call instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48474 91177308-0d34-0410-b5e6-96231b3b80d8

Make Complex long long/double/long double work
in ppc64 mode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48459 91177308-0d34-0410-b5e6-96231b3b80d8

Clarify the unwind attribute.  Add assumption
about sret made by the optimizers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48452 91177308-0d34-0410-b5e6-96231b3b80d8

Fix for "make install" of ocaml docs. Patch by Erick Tryzelaar!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48451 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for escaping {} in asm strings, based on patch from Nick Burns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48450 91177308-0d34-0410-b5e6-96231b3b80d8

Check in some #ifdef'd out code switching call argument
lowering over to SparcCallingConv.td.  We can't make the switch
yet because we can't say to pass f64 registers in 2 x i32 registers
with the td file yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48449 91177308-0d34-0410-b5e6-96231b3b80d8

minor cleanups

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48448 91177308-0d34-0410-b5e6-96231b3b80d8

Unbreak JIT. Ignore TargetInstrInfo::IMPLICIT_DEF.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48447 91177308-0d34-0410-b5e6-96231b3b80d8

A first attempt at updating live intervals, with code lifted from
the coalescer.  This doesn't really work, but gets us farther than
before.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48446 91177308-0d34-0410-b5e6-96231b3b80d8

remove dead code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48445 91177308-0d34-0410-b5e6-96231b3b80d8

Switch sparc from using LowerCallTo to using LowerOperation(CALL) like
other targets.  Use autogenerated calling conv to lower result of
calls.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48444 91177308-0d34-0410-b5e6-96231b3b80d8

Start moving sparc to use SparcCallingConv.td, switching over
return lowering first.  This fixes a bug where the top and bottom
of i64 values were returned in the wrong registers before.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48443 91177308-0d34-0410-b5e6-96231b3b80d8

split sparc lowering out into SparcISelLowering.{cpp|h} to follow
best practices.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48442 91177308-0d34-0410-b5e6-96231b3b80d8

refactor the LowerOperation code out to individual functions for
each lowering, which is 'best practice'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48441 91177308-0d34-0410-b5e6-96231b3b80d8

Next round of PPC32 ABI changes.  Allow for gcc
behavior where a callee thinks a param will be
present in memory, even though the ABI doc says
it doesn't have to be.  Handle complex long long
and complex double (4 and 8 return regs).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48439 91177308-0d34-0410-b5e6-96231b3b80d8

various rotate fun.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48438 91177308-0d34-0410-b5e6-96231b3b80d8

ensure we continue matching x86-64 rotates.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48437 91177308-0d34-0410-b5e6-96231b3b80d8

__builtin_ia32_movntdqa reads memory

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48431 91177308-0d34-0410-b5e6-96231b3b80d8

Add a couple missing SSE4 instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48430 91177308-0d34-0410-b5e6-96231b3b80d8

C and Objective Caml bindings for the TargetData class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48422 91177308-0d34-0410-b5e6-96231b3b80d8

Add assert for non-hexadecimal radixes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48421 91177308-0d34-0410-b5e6-96231b3b80d8

Housekeeping.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48420 91177308-0d34-0410-b5e6-96231b3b80d8

C and Objective Caml bindings for several scalar transforms.

Patch originally by Erick Tryzelaar, but has been modified somewhat.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48419 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unnecessary includes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48418 91177308-0d34-0410-b5e6-96231b3b80d8

All of these tests had out of date syntax and were never even running through
llvm-upgrade because nobody noticed them failing.

Update to use new syntax and actually check for the right failure by looking at
the error message.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48417 91177308-0d34-0410-b5e6-96231b3b80d8

Functions are allowed to return structures. (Note that this test never failed.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48416 91177308-0d34-0410-b5e6-96231b3b80d8

Regressions/ is long gone.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48415 91177308-0d34-0410-b5e6-96231b3b80d8

Commit works on regular functions too. Fix the syntax to allow @foo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48414 91177308-0d34-0410-b5e6-96231b3b80d8

C and Objective Caml bindings for PassManagers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48413 91177308-0d34-0410-b5e6-96231b3b80d8

Make insert_subreg a two-address instruction, vastly simplifying LowerSubregs pass. Add a new TII, subreg_to_reg, which is like insert_subreg except that it takes an immediate implicit value to insert into rather than a register.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48412 91177308-0d34-0410-b5e6-96231b3b80d8

Minor documentation fix.

Patch by Erick Tryzelaar.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48382 91177308-0d34-0410-b5e6-96231b3b80d8

Remove isImplicitDef TargetInstrDesc flag.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48381 91177308-0d34-0410-b5e6-96231b3b80d8

Replace all target specific implicit def instructions with a target independent one: TargetInstrInfo::IMPLICIT_DEF.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48380 91177308-0d34-0410-b5e6-96231b3b80d8

Expose Module::dump via C and Ocaml.

Patch by Erick Tryzelaar.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48379 91177308-0d34-0410-b5e6-96231b3b80d8

Expose Module::dump via C and Ocaml.

Patch by Erick Tryzelaar.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48378 91177308-0d34-0410-b5e6-96231b3b80d8

move the Use destructor where it belongs to

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48376 91177308-0d34-0410-b5e6-96231b3b80d8

Back out r48353. Not needed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48375 91177308-0d34-0410-b5e6-96231b3b80d8

Do not generate special entries in the dwarf eh
table for nounwind calls.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48373 91177308-0d34-0410-b5e6-96231b3b80d8

Restore this member, which is used on win32.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48372 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR2138. Apparently any modification to a std::multimap (including remove entries for a different key) can invalidate multimap iterators.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48371 91177308-0d34-0410-b5e6-96231b3b80d8

this was removed from the Unix side.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48370 91177308-0d34-0410-b5e6-96231b3b80d8

Update comments; getPassName no longer uses RTTI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48369 91177308-0d34-0410-b5e6-96231b3b80d8

Move the PMStack class out of Pass.h and into PassManagers.h.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48367 91177308-0d34-0410-b5e6-96231b3b80d8

Implement the real calling convention for ppc32 Altivec:
vectors go at the end of the memory area, after all
non-vector parameters.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48364 91177308-0d34-0410-b5e6-96231b3b80d8

Fix some 80 col violations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48361 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a number of encoding bugs. SSE 4.1 instructions MPSADBWrri, PINSRDrr, etc. have 8-bits immediate field (ImmT == Imm8).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48360 91177308-0d34-0410-b5e6-96231b3b80d8

Add debugging stuff.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48359 91177308-0d34-0410-b5e6-96231b3b80d8

Add an issue that is preventing instcombine from doing a simplification.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48356 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify using getIntPtrConstant.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48355 91177308-0d34-0410-b5e6-96231b3b80d8

The inst combining of inttoptr into GEP with one index was using the bit size of
the type instead of the byte size. This was causing troublesome mis-compilations.

True to form, this took 2 days to find and is a one-line fix. :-P

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48354 91177308-0d34-0410-b5e6-96231b3b80d8

Add an MO_Undef MachineOperandType, intended for INSERT_SUBREG. Next up MO_Undead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48353 91177308-0d34-0410-b5e6-96231b3b80d8

Tabs -> spaces
Use getIntPtrConstant in a couple places to shorten stuff up
Handle splitting vector shuffles with undefs in the mask

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48351 91177308-0d34-0410-b5e6-96231b3b80d8

Forgot this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48349 91177308-0d34-0410-b5e6-96231b3b80d8

Livein copy scheduling fixes: do not coalesce physical register copies, correctly determine the safe location to insert the copies.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48348 91177308-0d34-0410-b5e6-96231b3b80d8

Use SDTNone instead of duplicating it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48346 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a typo in a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48345 91177308-0d34-0410-b5e6-96231b3b80d8

More APInt-ification.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48344 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a bug in GVN that Duncan noticed, where we potentially need to insert a
pointer bitcast when performing return slot optimization.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48343 91177308-0d34-0410-b5e6-96231b3b80d8

Fix error in testing for END. notation.
Patch by Julien Lerouge. Thanks!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48342 91177308-0d34-0410-b5e6-96231b3b80d8

Undo tweak. It had no obvious benefit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48341 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unused GetAddressOfSymbol()
Thanks Daniel Dunbar!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48340 91177308-0d34-0410-b5e6-96231b3b80d8

New test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48338 91177308-0d34-0410-b5e6-96231b3b80d8

Typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48337 91177308-0d34-0410-b5e6-96231b3b80d8

Don't try to sink 3-address instruction if convertToThreeAddress created more than one instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48336 91177308-0d34-0410-b5e6-96231b3b80d8

A test case I forgot to check in.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48335 91177308-0d34-0410-b5e6-96231b3b80d8

Remove an unused command line option.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48334 91177308-0d34-0410-b5e6-96231b3b80d8

TwoAddressInstructionPass enhancement. After it converts a two address instruction into a 3-address one, sink it past the instruction that kills the read-mod-write register if its definition is used past the kill. This reduces the number of live register by one.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48333 91177308-0d34-0410-b5e6-96231b3b80d8

Get rid of a pseudo instruction and replace it with subreg based operation on real instructions, ridding the asm printers of the hack used to do this previously. In the process, update LowerSubregs to be careful about eliminating copies that have side affects.

Note: the coalescer will have to be careful about this too, when it starts coalescing insert_subreg nodes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48329 91177308-0d34-0410-b5e6-96231b3b80d8

Fix Path::GetMainExecutable on cygwin, patch by Sam Bishop.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48328 91177308-0d34-0410-b5e6-96231b3b80d8

remove extraneous namespace qualifier, PR2142

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48327 91177308-0d34-0410-b5e6-96231b3b80d8

move a bunch of trivial methods to be inline.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48326 91177308-0d34-0410-b5e6-96231b3b80d8

Various improvements suggested by Duncan

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48325 91177308-0d34-0410-b5e6-96231b3b80d8

Fix an incorrect comment, PR2147.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48323 91177308-0d34-0410-b5e6-96231b3b80d8