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06b666c705
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11789 Commits

Author SHA1 Message Date
Evan Cheng
06b666c705 Allow TargetLowering::getRegClassFor() to be called on illegal types. Also 
allow target to override it in order to map register classes to illegal
but synthesizable types. e.g. v4i64, v8i64 for ARM / NEON.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103854 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-15 02:18:07 +00:00
Evan Cheng
b990a2f249 Teach two-address pass to do some coalescing while eliminating REG_SEQUENCE 
instructions.

e.g.
%reg1026<def> = VLDMQ %reg1025<kill>, 260, pred:14, pred:%reg0
%reg1027<def> = EXTRACT_SUBREG %reg1026, 6
%reg1028<def> = EXTRACT_SUBREG %reg1026<kill>, 5
...
%reg1029<def> = REG_SEQUENCE %reg1028<kill>, 5, %reg1027<kill>, 6, %reg1028, 7, %reg1027, 8, %reg1028, 9, %reg1027, 10, %reg1030<kill>, 11, %reg1032<kill>, 12

After REG_SEQUENCE is eliminated, we are left with:

%reg1026<def> = VLDMQ %reg1025<kill>, 260, pred:14, pred:%reg0
%reg1029:6<def> = EXTRACT_SUBREG %reg1026, 6
%reg1029:5<def> = EXTRACT_SUBREG %reg1026<kill>, 5

The regular coalescer will not be able to coalesce reg1026 and reg1029 because it doesn't
know how to combine sub-register indices 5 and 6. Now 2-address pass will consult the
target whether sub-registers 5 and 6 of reg1026 can be combined to into a larger
sub-register (or combined to be reg1026 itself as is the case here). If it is possible, 
it will be able to replace references of reg1026 with reg1029 + the larger sub-register
index.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103835 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 23:21:14 +00:00
Dan Gohman
fd72617688 Add some comments about undef. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103834 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 23:01:02 +00:00
Bill Wendling
b92187a410 Rename "HasCalls" in MachineFrameInfo to "AdjustsStack" to better describe what 
the variable actually tracks.

N.B., several back-ends are using "HasCalls" as being synonymous for something
that adjusts the stack. This isn't 100% correct and should be looked into.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103802 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 21:14:32 +00:00
Devang Patel
98e1cac52c Add support to preserve type info for the variables that are removed by the optimizer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103798 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 21:01:35 +00:00
Dan Gohman
8090e214f7 Use PassManagerBase, to give clients the option of using either 
FunctionPassManager or regular PassManager.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103773 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 15:35:10 +00:00
Dan Gohman
89938ce0ad Add an isNodeHidden to the graph traits, to support definition of 
subgraph views.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103772 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 15:29:31 +00:00
Evan Cheng
0ebf356ddf Get rid of the bit twiddling to read / set OpActions and ValueTypeActions. The small saving in memory isn't worth the increase in runtime and code complexity in my opinion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103768 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 07:37:40 +00:00
Eric Christopher
482eba054a Add AsmParser support for darwin tbss directive. 
Nothing uses this yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103757 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 01:50:28 +00:00
Nick Lewycky
3fa0c8ca96 Fix typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103755 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 01:02:48 +00:00
Daniel Dunbar
47b3ec4daa MC: Switch to completely lazy layout. 
- The eliminates the last major algorithmic problem with MC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103754 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 00:51:14 +00:00
Daniel Dunbar
9005d45a99 MC: Extend MCAsmLayout to explicitly track which fragments have been layed out, and enforce several invariants to LayoutFragment to ensure we only do layout in a sensible order. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103753 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 00:37:21 +00:00
Daniel Dunbar
337718e09c MC: Switch MCFragment to storing the layout order index, not its index in the file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103751 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 00:37:14 +00:00
Daniel Dunbar
afc6acdab7 MC: Change LayoutSection() to only do the section initializiation. 
Also, elimminate MCAsmLayout::set*, which are no longer needed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103750 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 00:37:11 +00:00
Evan Cheng
dbf67fefea Adding a v8i64 512-bit vector type. This will be used to model ARM NEON intrinsics which translate into a pair of vld / vst instructions that can load / store 8 consecutive 64-bit (D) registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103746 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 23:55:47 +00:00
Evan Cheng
b9c0e332b3 Eliminate use of magic numbers to access OpActions. It also has the effect of allowing more than 31 scalar value types. MAX_ALLOWED_VALUETYPE had already been updated to 64 a while back. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103743 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 23:25:21 +00:00
Evan Cheng
b21f5a5511 Fix up LoadExtActions, TruncStoreActions, and IndexedModeActions representation and setter and getter's so they will continue to work if the number of scalar ValueType's exceeds 31. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103742 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 23:01:26 +00:00
Daniel Dunbar
b69fc044db MC: Move Layout{Fragment,Section} into MCAsmLayout, and add LayoutFile(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103738 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 20:40:12 +00:00
Dan Gohman
e6cd757e68 Teach MachineLICM and MachineSink how to clear kill flags conservatively 
when they move instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103737 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 20:34:42 +00:00
Evan Cheng
1e5a6c46b8 80 col violation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103733 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 20:14:58 +00:00
Dan Gohman
49b4589978 Add a utility function for conservatively clearing kill flags, and make 
use of it in MachineCSE.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103726 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 19:24:00 +00:00
Daniel Dunbar
2c18d3b0fe MC: Factor out MCAssembler::ComputeFragmentSize. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103724 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 18:35:06 +00:00
Daniel Dunbar
f1fd2288f3 Fix const ilist_node::get{Prev,Next}Node() to actually compile. Picky, picky. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103723 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 18:35:02 +00:00
Daniel Dunbar
f60c736c64 MC: Add section layout order indices to MCSectionData. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103715 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 15:17:26 +00:00
Daniel Dunbar
aa0d350fe5 MC: Add MCAsmLayout::FragmentReplaced() helper function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103709 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 08:43:31 +00:00
Daniel Dunbar
2661f11e46 MC: Eliminate MCSectionData::{,Address,File}Size, which can now be computed by 
utility functions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103695 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 03:19:50 +00:00
Daniel Dunbar
456b501270 MC: Add MCAlignFragment::OnlyAlignAddress bit. This is a bit of magic that says the align fragment shouldn't contribute to the logical section size, it is will be used for cleaning up the code to handle section alignment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103690 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 01:10:26 +00:00
Daniel Dunbar
b5844ff1c4 MC: Add MCSectionData::AddressSize, which is the size of the address space consumed by the section. This can differ from both the section logical size, and the section size on disk (although the current code handles this without making an explicit distinction). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103689 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 01:10:22 +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
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
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
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
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
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
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
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
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
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
Jakob Stoklund Olesen
82b07dc499 Simplify the tracking of used physregs to a bulk bitor followed by a transitive 
closure after allocating all blocks.

Add a few more test cases for -regalloc=fast.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103500 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-11 20:30:28 +00:00
Duncan Sands
16d8f8bd91 I got tired of VISIBILITY_HIDDEN colliding with the gcc enum. Rename it 
to LLVM_LIBRARY_VISIBILITY and introduce LLVM_GLOBAL_VISIBILITY, which is
the opposite, for future use by dragonegg.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103495 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-11 20:16:09 +00:00
Dan Gohman
99dca4fde7 Remove the "WantsWholeFile" concept, as it's no longer needed. CBE 
and the others use the regular addPassesToEmitFile hook now, and
llc no longer needs a bunch of redundant code to handle the
whole-file case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103492 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-11 19:57:55 +00:00
Dan Gohman
038df88e28 Trim #includes and forward declarations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103489 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-11 19:11:43 +00:00
Dan Gohman
17c4a621fe Fix a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103483 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-11 18:03:41 +00:00
Dan Gohman
ff7a562751 Implement a bunch more TargetSelectionDAGInfo infrastructure. 
Move EmitTargetCodeForMemcpy, EmitTargetCodeForMemset, and
EmitTargetCodeForMemmove out of TargetLowering and into
SelectionDAGInfo to exercise this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103481 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-11 17:31:57 +00:00
Daniel Dunbar
651804c3d6 MC/Mach-O x86_64: Switch to using fragment atom symbol. 
- This eliminates getAtomForAddress() (which was a linear search) and
   simplifies getAtom().
 - This also fixes some correctness problems where local labels at the same
   address as non-local labels could be assigned to the wrong atom.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103480 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-11 17:22:50 +00:00
Dan Gohman
419e4f9263 Remove the TargetLowering::getSubtarget() virtual function, which 
was unused. TargetMachine::getSubtarget() is used instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103474 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-11 16:21:03 +00:00
Douglas Gregor
7d9663c70b Fixes for Microsoft Visual Studio 2010, from Steven Watanabe! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103457 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-11 06:17:44 +00:00