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Author SHA1 Message Date
Dan Gohman
33e9c347bf Teach MachineLICM and MachineSink how to clear kill flags conservatively 
when they move instructions.

llvm-svn: 103737
 2010-05-13 20:34:42 +00:00
Evan Cheng
fd47525512 80 col violation. 
llvm-svn: 103733
 2010-05-13 20:14:58 +00:00
Evan Cheng
a36135d02f Add comment about the pseudo registers QQ, each of which is a pair of Q registers. 
llvm-svn: 103731
 2010-05-13 20:02:08 +00:00
Bob Wilson
eaa62c4861 Fix pr7110: For non-Darwin targets UnspilledCS1GPRs may include high registers. 
Do not use those for Thumb1 functions.

llvm-svn: 103730
 2010-05-13 19:58:24 +00:00
Oscar Fuentes
7712b9a40b CMake: fixes 64 bit Visual Studio IDE build. Fixes bug 4936. 
Patch by Dimitry Andric!

llvm-svn: 103727
 2010-05-13 19:34:06 +00:00
Dan Gohman
223379b3a9 Add a utility function for conservatively clearing kill flags, and make 
use of it in MachineCSE.

llvm-svn: 103726
 2010-05-13 19:24:00 +00:00
Dan Gohman
d7b4c5b82e An Instruction has a trivial kill only if its use is in the same 
basic block.

llvm-svn: 103725
 2010-05-13 19:19:32 +00:00
Daniel Dunbar
b142c00db4 MC: Factor out MCAssembler::ComputeFragmentSize. 
llvm-svn: 103724
 2010-05-13 18:35:06 +00:00
Daniel Dunbar
10ef3afee3 Fix const ilist_node::get{Prev,Next}Node() to actually compile. Picky, picky. 
llvm-svn: 103723
 2010-05-13 18:35:02 +00:00
Jakob Stoklund Olesen
ed8dd53c85 Fix complete badness in bugpoint's IsARMArchitecture() function. 
The revision history for this function is interesting, with multiple layers of
wrongness being introduced one at a time.

This fixes a weird issue where bugpoint -run-llc would suddenly exit 13 half way
through isolating a miscompilation.

llvm-svn: 103721
 2010-05-13 17:58:15 +00:00
Nick Lewycky
fc4c30e9e3 Actually run the test. Thanks Daniel Dunbar! 
llvm-svn: 103720
 2010-05-13 17:41:06 +00:00
Daniel Dunbar
5a601f9e09 MC: Add section layout order indices to MCSectionData. 
llvm-svn: 103715
 2010-05-13 15:17:26 +00:00
Rafael Espindola
bc6fabbd3e Add an also-emit-llvm option to the gold plugin. 
llvm-svn: 103714
 2010-05-13 13:39:31 +00:00
Daniel Dunbar
aa67ae072c MC: Move ordinal calculation, to make sure fragments synthesized for layout get assigned ordinals properly. 
llvm-svn: 103711
 2010-05-13 08:43:37 +00:00
Daniel Dunbar
e72ef430f7 MC: Create dummy fragments to avoid ever having empty sections, which simplifies layout. 
llvm-svn: 103710
 2010-05-13 08:43:34 +00:00
Daniel Dunbar
5ef1bcbb97 MC: Add MCAsmLayout::FragmentReplaced() helper function. 
llvm-svn: 103709
 2010-05-13 08:43:31 +00:00
Chandler Carruth
d37bcf5e2c Update tablegen to generate shorts instead of chars for subgroup arrays. 
llvm-svn: 103704
 2010-05-13 07:43:47 +00:00
Anton Korobeynikov
fa0c92ab6c Properly set thread-local flag on globals during cpp emission 
llvm-svn: 103702
 2010-05-13 07:41:57 +00:00
Nick Lewycky
e343761a2a Remove heinous tabs. 
llvm-svn: 103700
 2010-05-13 06:45:13 +00:00
Nick Lewycky
38e49fbf52 Add testcase for r103653. 
llvm-svn: 103699
 2010-05-13 06:00:14 +00:00
Nick Lewycky
4cb49bc5a4 Replace the core comparison login in merge functions. We can now merge 
vector<>::push_back() in:

  int foo(vector<int> &a, vector<unsigned> &b) {
    a.push_back(10);
    b.push_back(11);
  }

to two calls to the same push_back function, or fold away the two copies of
push_back() in:

  struct T { int; };
  struct S { char; };
  vector<T*> t;
  vector<S*> s;
  void f(T *x) { t.push_back(x); }
  void g(S *x) { s.push_back(x); }

but leave f() and g() separate, since they refer to two different global
variables.

llvm-svn: 103698
 2010-05-13 05:48:45 +00:00
Daniel Dunbar
5759287db9 Fix -Asserts warning. 
llvm-svn: 103697
 2010-05-13 03:50:50 +00:00
Daniel Dunbar
561f55c1af MC: Eliminate MCSectionData::{,Address,File}Size, which can now be computed by 
utility functions.

llvm-svn: 103695
 2010-05-13 03:19:50 +00:00
Daniel Dunbar
03bd9216df Fix -Asserts warning. 
llvm-svn: 103694
 2010-05-13 03:19:36 +00:00
Daniel Dunbar
a81966a973 MC: Switch to using explicit MCAlignFragments with OnlyAlignAddress bit instead 
of manually doing padding/editing layout in LayoutSection().
    - This probably seems like six-of-one and half-dozen of another, but there
      is a method to my madness.

llvm-svn: 103693
 2010-05-13 02:34:14 +00:00
Evan Cheng
8d516e4c3e Bring back VLD1q and VST1q and use them for reloading / spilling Q registers. This allows folding loads and stores into VMOVQ. 
llvm-svn: 103692
 2010-05-13 01:12:06 +00:00
Daniel Dunbar
f254edca8d MC/Mach-O: Add another zerofill test to improve coverage. 
llvm-svn: 103691
 2010-05-13 01:10:28 +00:00
Daniel Dunbar
3fc379596a 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. 
llvm-svn: 103690
 2010-05-13 01:10:26 +00:00
Daniel Dunbar
ec3a2ac5ed 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). 
llvm-svn: 103689
 2010-05-13 01:10:22 +00:00
Jakob Stoklund Olesen
d99818256c Take allocation hints from copy instructions to/from physregs. 
This causes way more identity copies to be generated, ripe for coalescing.

llvm-svn: 103686
 2010-05-13 00:19:43 +00:00
Jakob Stoklund Olesen
69f3ae8789 More asserts around physreg uses 
llvm-svn: 103685
 2010-05-13 00:19:39 +00:00
Evan Cheng
d43aee655d Expand VMOVQQ into a pair of VMOVQ. 
llvm-svn: 103684
 2010-05-13 00:17:02 +00:00
Evan Cheng
533ffa237e Mark some pattern-less instructions as neverHasSideEffects. 
llvm-svn: 103683
 2010-05-13 00:16:46 +00:00
Chris Lattner
ca57d80f83 fix rdar://7965971 and a fixme: use ParseIdentifier in 
ParseDirectiveDarwinZerofill instead of hard coding the
check for identifier. This allows quoted symbol names to
be used.

llvm-svn: 103682
 2010-05-13 00:10:34 +00:00
Chris Lattner
887e8f9f53 reapply r103668 with a fix. Never make "minor syntax changes" 
after testing before committing.

llvm-svn: 103681
 2010-05-13 00:02:47 +00:00
Evan Cheng
791573787a If REG_SEQUENCE source is livein, copy it first. Also, update livevariables information when a copy is introduced. 
llvm-svn: 103680
 2010-05-13 00:00:35 +00:00
Evan Cheng
8134a2e87b Do not attempt copy coalescing if the source and dest sub-register indices do not match. 
llvm-svn: 103679
 2010-05-12 23:59:42 +00:00
Chris Lattner
361c115f23 revert r103668 for now, it is apparently breaking things. 
llvm-svn: 103677
 2010-05-12 23:40:59 +00:00
Chris Lattner
91a836a9c7 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

llvm-svn: 103668
 2010-05-12 23:13:36 +00:00
Evan Cheng
aef4fc8804 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. 
llvm-svn: 103667
 2010-05-12 23:13:12 +00:00
Daniel Dunbar
de7caed021 MC: Move MCAlignFragment::EmitNops value out of the constructor. 
llvm-svn: 103665
 2010-05-12 22:56:23 +00:00
Daniel Dunbar
cf11e2a0a5 MC: Eliminate MCZeroFillFragment, it is no longer needed. 
llvm-svn: 103664
 2010-05-12 22:51:38 +00:00
Daniel Dunbar
0040c2c393 MC: Explicitly check that only virtual fragments appear in virtual sections. 
llvm-svn: 103663
 2010-05-12 22:51:35 +00:00
Daniel Dunbar
08bcc3a6fc MC: Switch MCFillFragment to storing total fill size instead of a count. This allows using ValueSize==0 to represent a virtual fill. 
llvm-svn: 103662
 2010-05-12 22:51:32 +00:00
Daniel Dunbar
d3f60794d8 MC: Drop support for alignment in ZeroFill fragment, we can just use 
MCAlignFragments for this.

llvm-svn: 103661
 2010-05-12 22:51:27 +00:00
Chris Lattner
1960255123 fix the encoding of the obscure "moffset" forms of moves, i386 
part first.  rdar://7947184

llvm-svn: 103660
 2010-05-12 22:48:24 +00:00
Nick Lewycky
b5bf752087 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.

llvm-svn: 103653
 2010-05-12 21:48:15 +00:00
Daniel Dunbar
8578537b17 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.

llvm-svn: 103652
 2010-05-12 21:47:58 +00:00
Daniel Dunbar
e8f8a29de5 Simplify. 
llvm-svn: 103651
 2010-05-12 21:47:55 +00:00
Daniel Dunbar
6a495507e5 MC: Factor out MCAssembler::LayoutFragment 
llvm-svn: 103649
 2010-05-12 21:35:25 +00:00