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38564 Commits

Author SHA1 Message Date
Bill Wendling
55ed945bfd This should happen if there are no calls, not if it just doesn't adjust the 
stack.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103813 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 21:38:44 +00:00
Bill Wendling
0fc546b053 Revert r103804. The comment is correct. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103808 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 21:28:24 +00:00
Jim Grosbach
01384ef159 Remove trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103807 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 21:20:46 +00:00
Jim Grosbach
9001303a3f 80 column and trailing whitespace cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103806 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 21:19:48 +00:00
Jim Grosbach
5468e0928b add cmd line option to leave dbgvalues in during post-RA sceduling. Useful 
while debugging what's mishandled about them in the post-RA pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103805 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 21:18:04 +00:00
Bill Wendling
d33fa0f9e0 Fix comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103804 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 21:17:29 +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
Dan Gohman
71ea4e5b05 Lowering of atomic instructions can result in operands being 
used more than once. If ISel had put a kill flag on one of them,
it's not valid to transfer the kill flag to each new instance.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103799 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 21:01:44 +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
Jakob Stoklund Olesen
1b2c761a9c When verifying two-address instructions, check the following: 
- Kill is implicit when use and def registers are identical.
- Only virtual registers can differ.

Add a -verify-fast-regalloc to run the verifier before the fast allocator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103797 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 20:28:32 +00:00
Kevin Enderby
c3ce05c594 Fix so "int3" is correctly accepted, added "into" and fixed "int" with an 
argument, like "int $4", to not get an Assertion error.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103791 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 19:16:02 +00:00
Evan Cheng
5c6aba2e3a Model VLD*_UPD and VLD*odd_UPD pair with REG_SEQUENCE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103790 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 18:54:59 +00:00
Daniel Dunbar
f0f6cdb6b4 MC/Mach-O/x86_64: Darwin's special "signed_N" relocation types should only be 
used to replace a normal relocation, not a reference to a GOT entry.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103789 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 18:53:40 +00:00
Jakob Stoklund Olesen
4ed1082683 Simplify the handling of physreg defs and uses in RegAllocFast. 
This adds extra security against using clobbered physregs, and it adds kill
markers to physreg uses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103784 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 18:03:25 +00:00
Dan Gohman
effc8c5269 Set isTerminator on TRAP instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103778 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 16:46:02 +00:00
Dan Gohman
c0c32ae5c2 Don't use isBarrier for the PowerPC sync instruction. isBarrier is for 
control barriers, not memory ordering barriers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103777 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 16:42:16 +00:00
Dan Gohman
7f357ec6d2 Add mayLoad and mayStore flags to instructions which missed them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103776 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 16:34:55 +00:00
Daniel Dunbar
bd616b69f7 XFAIL the test I added with vg_leak, apparently it is the first and only llc 
-filetype=obj test, and -filetype=obj leaks a few objects. Added a FIXME, we
need to sort out the ownership model for the various MC objects.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103769 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 07:47:51 +00:00
Daniel Dunbar
d11d59e35a Inline Asm: Ensure buffer is newline terminated to match how the text is printed. 
- This is a hack, but I can't decide the best place to handle this. Chris?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103765 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 04:31:50 +00:00
Jakob Stoklund Olesen
7ff82e1501 Enable opportunistic coalescing 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103764 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 04:30:51 +00:00
Evan Cheng
22c687b642 Added a QQQQ register file to model 4-consecutive Q registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103760 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 02:13:41 +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
Eric Christopher
c260a3e59a Fix a couple of typos. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103756 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 01:38:54 +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
11c4111516 MC: Implicitly assign section addresses when the previous fragment is layed out. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103752 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 00:37:17 +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
7f68719517 Fix comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103749 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 00:21:45 +00:00
Jakob Stoklund Olesen
57b6076d34 Trust kill flags from isel and later passes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103748 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 00:02:23 +00:00
Jakob Stoklund Olesen
7d4f25904d 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103747 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 00:02:20 +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
Dale Johannesen
a5afa1cb21 Implement a correct ui64->f32 conversion. The old 
one was subject to double rounding in extreme cases.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103744 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 23:50:42 +00:00
Jakob Stoklund Olesen
c9c4dacd03 Clean up RegAllocFast debug output 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103739 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 20:43:17 +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
c4ca40eb5e Add comment about the pseudo registers QQ, each of which is a pair of Q registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103731 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 20:02:08 +00:00
Bob Wilson
1190c14b54 Fix pr7110: For non-Darwin targets UnspilledCS1GPRs may include high registers. 
Do not use those for Thumb1 functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103730 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 19:58:24 +00:00
Oscar Fuentes
ed36aac081 CMake: fixes 64 bit Visual Studio IDE build. Fixes bug 4936. 
Patch by Dimitry Andric!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103727 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 19:34:06 +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
Dan Gohman
e1308d86ed An Instruction has a trivial kill only if its use is in the same 
basic block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103725 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 19:19:32 +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
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
49ed921190 MC: Move ordinal calculation, to make sure fragments synthesized for layout get assigned ordinals properly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103711 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 08:43:37 +00:00
Daniel Dunbar
09d3465f0e MC: Create dummy fragments to avoid ever having empty sections, which simplifies layout. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103710 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 08:43:34 +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
Anton Korobeynikov
61aeed11cd Properly set thread-local flag on globals during cpp emission 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103702 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 07:41:57 +00:00
Nick Lewycky
911ae391e8 Remove heinous tabs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103700 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 06:45:13 +00:00
Nick Lewycky
33ab0b1568 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103698 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 05:48:45 +00:00
Daniel Dunbar
054be92e1d Fix -Asserts warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103697 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-13 03:50:50 +00:00