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Author SHA1 Message Date
Chris Lattner
b5505d0ee3 reapply r103668 with a fix. Never make "minor syntax changes" 
after testing before committing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103681 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 00:02:47 +00:00
Evan Cheng
054dbb8e82 If REG_SEQUENCE source is livein, copy it first. Also, update livevariables information when a copy is introduced. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103680 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 00:00:35 +00:00
Evan Cheng
de7dea2e44 Do not attempt copy coalescing if the source and dest sub-register indices do not match. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103679 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 23:59:42 +00:00
Chris Lattner
3519f9d7d1 revert r103668 for now, it is apparently breaking things. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103677 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 23:40:59 +00:00
Chris Lattner
0de8e3f10a moffset forms of moves are x86-32 only, make the parser 
lower them to the correct x86-64 instructions since we 
don't have a clean way to handle this in td files yet.
rdar://7947184


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103668 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 23:13:36 +00:00
Evan Cheng
431300797b Fix some potential issues in the pseudo instruction expansion phase: copy implicit operands and memoperands. Also, expand instructions even if their defs are "dead" since they may have implicit kill operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103667 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 23:13:12 +00:00
Daniel Dunbar
1c15413ebc MC: Move MCAlignFragment::EmitNops value out of the constructor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103665 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 22:56:23 +00:00
Daniel Dunbar
4e544870c4 MC: Eliminate MCZeroFillFragment, it is no longer needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103664 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 22:51:38 +00:00
Daniel Dunbar
e2fee5b236 MC: Explicitly check that only virtual fragments appear in virtual sections. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103663 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 22:51:35 +00:00
Daniel Dunbar
3153fec733 MC: Switch MCFillFragment to storing total fill size instead of a count. This allows using ValueSize==0 to represent a virtual fill. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103662 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 22:51:32 +00:00
Daniel Dunbar
e73d49eda2 MC: Drop support for alignment in ZeroFill fragment, we can just use 
MCAlignFragments for this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103661 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 22:51:27 +00:00
Chris Lattner
2745f6e920 fix the encoding of the obscure "moffset" forms of moves, i386 
part first.  rdar://7947184


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103660 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 22:48:24 +00:00
Nick Lewycky
9a1581b910 Clear CachedFunctionInfo upon Pass::releaseMemory. Because ValueMap will abort 
on RAUW of functions, this is a correctness issue instead of a mere memory
usage problem.


No testcase until the new MergeFunctions can land.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103653 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 21:48:15 +00:00
Daniel Dunbar
bd4fa2efd3 lit: Fix a sh lexing bug which caused annotate-token.m to fail when run with the 
internal shell parser; we weren't lexing the quotes in a command like::

  clang -DFOO='hello'

correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103652 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 21:47:58 +00:00
Daniel Dunbar
52f8dff671 Simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103651 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 21:47:55 +00:00
Daniel Dunbar
f0d17d2461 MC: Factor out MCAssembler::LayoutFragment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103649 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 21:35:25 +00:00
Daniel Dunbar
2d891a20e6 MC: Tweak section layout to not relying on accumulating address value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103648 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 21:35:22 +00:00
Daniel Dunbar
aa81380353 ADT: Add ilist_node::get{Prev,Next}Node, which return the adjacent node or null. 
- This provides a convenient alternative to using something llvm::prior or
   manual iterator access, for example::

    if (T *Prev = foo->getPrevNode())
      ...

   instead of::

     iterator it(foo);
     if (it != begin()) {
       --it;
       ... 
     }

 - Chris, please review.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103647 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 21:35:19 +00:00
Evan Cheng
a4d73d01c4 Remove a dead fixme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103642 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 20:20:22 +00:00
Jakob Stoklund Olesen
804291e316 Make sure to add kill flags to the last use of a virtreg when it is redefined. 
The X86 floating point stack pass and others depend on good kill flags.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103635 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 18:46:03 +00:00
Devang Patel
cacd5d3b17 Test case for r103633. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103634 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 18:31:04 +00:00
Daniel Dunbar
d13a0caf72 MC: Simplify LayoutSection to just take the index of the section to layout. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103627 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 17:56:47 +00:00
Daniel Dunbar
473a09d80a lit: Fix OneCommandPerFileTest format when tests are specified directly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103626 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 17:56:44 +00:00
Daniel Dunbar
b14c699fe0 lit: Add support for 'lit ... @foo', which reads a list of tests to run from 
foo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103625 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 17:56:42 +00:00
Daniel Dunbar
bc1a0cf139 MC: Track section layout order explicitly, and use to simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103616 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 15:42:59 +00:00
Nathan Jeffords
62d50e89e4 stylistic change to MCSectionCOFF::PrintSwitchToSection COMDAT handling 
Made a stylistic changed to the code/comments related to the unsupported COMDAT selection  type IMAGE_COMDAT_SELECT_LARGEST based on from Anton Korobeynikov.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103590 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 07:36:03 +00:00
Duncan Sands
5b1b3b73f2 Remove unused variable. Tweak a comment while there. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103586 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 07:11:33 +00:00
Rafael Espindola
18c1021ec1 Add support for movi32 of global values to the new (MC) asm printer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103576 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 05:16:34 +00:00
Dale Johannesen
72c2a83951 Testcase for llvm 103572 (7898991). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103574 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 05:04:20 +00:00
Nathan Jeffords
871bb94c43 updated support for the COFF .linkonce 
Now, the .linkonce directive is emitted as part of MCSectionCOFF::PrintSwitchToSection instead of AsmPrinter::EmitLinkage since it is an attribute of the section the symbol was placed into not the symbol itself.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103568 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 04:26:09 +00:00
Evan Cheng
5bdc2aa264 vst instructions are modeled as this: 
v1024 = REG_SEQUENCE ...
v1025 = EXTRACT_SUBREG v1024, 5
v1026 = EXTRACR_SUBREG v1024, 6
      = VSTxx <addr>, v1025, v1026

The REG_SEQUENCE ensures the sources that feed into the VST instruction
are getting the right register allocation so they form a large super-
register. The extract_subreg will be coalesced away all would just work:
v1024 = REG_SEQUENCE ...
      = VSTxx <addr>, v1024:5, v1024:6

The problem is if the coalescer isn't run, the extract_subreg instructions
would stick around and there is no assurance v1025 and v1026 will get the
right registers.

As a short term workaround, teach the NEON pre-allocation pass to transfer
the sub-register indices over. An alternative would be do it 2addr pass
when reg_sequence's are eliminated. But that *seems* wrong and require
updating liveness information.

Another alternative is to do this in the scheduler when the instructions are
created. But that would mean somehow the scheduler this has to be done for
correctness reason. That's yucky as well. So for now, we are leaving this
in the target specific pass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103540 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 01:42:50 +00:00
Evan Cheng
736f89b1c1 Teach local regalloc about virtual registers with sub-indices. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103539 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 01:29:36 +00:00
Evan Cheng
3ae56bcd8a Code clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103538 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 01:27:49 +00:00
Daniel Dunbar
0481449a05 MC/X86: Extend suffix matching hack to match 'q' suffix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103535 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 00:54:20 +00:00
Nathan Jeffords
624d466a67 Added a trivial function to modify the flags field of MCSymbolData class. The function takes the value and a mask, and clears the mask bits before applying the value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103534 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 00:52:54 +00:00
Daniel Dunbar
a5f1d57f65 MC/Mach-O/x86_64: Add a new hook for checking whether a particular section can 
be diced into atoms, and adjust getAtom() to take this into account.
 - This fixes relocations to symbols in fixed size literal sections, for
   example.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103532 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 00:38:17 +00:00
Jakob Stoklund Olesen
85f4fdaed4 Enable a bunch more -regalloc=fast tests 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103531 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 00:11:24 +00:00
Jakob Stoklund Olesen
1a1ad578a3 Avoid scoping issues, fix buildbots 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103530 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 00:11:19 +00:00
Dan Gohman
a6cb641f48 Add initial kill flag support to FastISel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103529 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-11 23:54:07 +00:00
Daniel Dunbar
0efd768aea Make Clang happy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103528 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-11 23:53:13 +00:00
Daniel Dunbar
db4c7e606f MC/Mach-O/x86_64: Fix PCrel adjustment for x86_64, which was using the fixup 
offset instead of the fixup address as intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103527 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-11 23:53:11 +00:00
Daniel Dunbar
640e948f09 MC/Mach-O: As Kevin pointed out, 'Address' is really an offset -- rename to clarify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103526 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-11 23:53:07 +00:00
Daniel Dunbar
ef4591ef79 MC/Mach-O: Fix a crash on invalid. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103525 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-11 23:53:05 +00:00
Jeffrey Yasskin
6865f29fe7 Fix PR6951 by fixing Module leaks in bugpoint. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103523 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-11 23:25:16 +00:00
Jakob Stoklund Olesen
210e2afcc7 Store the Dirty bit in the LiveReg structure instead of a bit vector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103522 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-11 23:24:47 +00:00
Jakob Stoklund Olesen
76b4d5a021 Keep track of the last place a live virtreg was used. 
This allows us to add accurate kill markers, something the scavenger likes.
Add some more tests from ARM that needed this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103521 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-11 23:24:45 +00:00
Dan Gohman
9d7019f586 Don't set kill flags on uses of CopyFromReg nodes. InstrEmitter doesn't 
create separate virtual registers for CopyFromReg values, so uses of
them don't necessarily kill the value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103519 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-11 21:59:14 +00:00
Evan Cheng
9647f3d981 Avoid breaking vstd when reg_sequence is not used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103513 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-11 21:07:36 +00:00
Jakob Stoklund Olesen
a44c1223cd One more -regalloc=fast test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103509 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-11 20:51:07 +00:00
Jakob Stoklund Olesen
8e8b3cb937 Silence warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103508 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-11 20:51:04 +00:00