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Author SHA1 Message Date
Eric Christopher
ebea91f168 Add AsmParser support for darwin tbss directive. 
Nothing uses this yet.

llvm-svn: 103757
 2010-05-14 01:50:28 +00:00
Eric Christopher
0b3085ae2e Fix a couple of typos. 
llvm-svn: 103756
 2010-05-14 01:38:54 +00:00
Nick Lewycky
aeb998db39 Fix typo. 
llvm-svn: 103755
 2010-05-14 01:02:48 +00:00
Daniel Dunbar
7fee3c7b28 MC: Switch to completely lazy layout. 
- The eliminates the last major algorithmic problem with MC.

llvm-svn: 103754
 2010-05-14 00:51:14 +00:00
Daniel Dunbar
66c2ccec2d 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. 
llvm-svn: 103753
 2010-05-14 00:37:21 +00:00
Daniel Dunbar
bfc0b2083d MC: Implicitly assign section addresses when the previous fragment is layed out. 
llvm-svn: 103752
 2010-05-14 00:37:17 +00:00
Daniel Dunbar
11467b2eaa MC: Switch MCFragment to storing the layout order index, not its index in the file. 
llvm-svn: 103751
 2010-05-14 00:37:14 +00:00
Daniel Dunbar
b2a98e0a16 MC: Change LayoutSection() to only do the section initializiation. 
Also, elimminate MCAsmLayout::set*, which are no longer needed.

llvm-svn: 103750
 2010-05-14 00:37:11 +00:00
Evan Cheng
d1f60c198d Fix comments. 
llvm-svn: 103749
 2010-05-14 00:21:45 +00:00
Jakob Stoklund Olesen
f913d9f2b8 Trust kill flags from isel and later passes. 
llvm-svn: 103748
 2010-05-14 00:02:23 +00:00
Jakob Stoklund Olesen
aa38789fd4 Fix an embarrassing runtime regression for RegAllocFast. 
This loop is quadratic in the capacity for a DenseMap:

  while(!map.empty())
    map.erase(map.begin());

Instead we now do a normal begin() - end() iteration followed by map.clear().
That also has the nice sideeffect of shrinking the map capacity on demand.

llvm-svn: 103747
 2010-05-14 00:02:20 +00:00
Evan Cheng
775549c9e7 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. 
llvm-svn: 103746
 2010-05-13 23:55:47 +00:00
Dale Johannesen
9f19b6a761 Implement a correct ui64->f32 conversion. The old 
one was subject to double rounding in extreme cases.

llvm-svn: 103744
 2010-05-13 23:50:42 +00:00
Evan Cheng
5e115a09ec 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. 
llvm-svn: 103743
 2010-05-13 23:25:21 +00:00
Evan Cheng
f2572ea73b 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. 
llvm-svn: 103742
 2010-05-13 23:01:26 +00:00
Jakob Stoklund Olesen
b698dfd8c7 Clean up RegAllocFast debug output 
llvm-svn: 103739
 2010-05-13 20:43:17 +00:00
Daniel Dunbar
86825a9719 MC: Move Layout{Fragment,Section} into MCAsmLayout, and add LayoutFile(). 
llvm-svn: 103738
 2010-05-13 20:40:12 +00:00
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