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12609 Commits

Author SHA1 Message Date
Rafael Espindola
9cd0fd30e0 Parse and record the gnu_unique_object type. 
llvm-svn: 118980
 2010-11-13 04:51:02 +00:00
Jim Grosbach
4635621b41 Trailing whitespace. 
llvm-svn: 118978
 2010-11-13 04:17:15 +00:00
Rafael Espindola
00c5605efc Parse and remember discriminators in .loc line. I try to output them with 
another patch.
This lets us parse a bit more of the gcc 4.5 output.

llvm-svn: 118975
 2010-11-13 03:18:27 +00:00
Daniel Dunbar
fef193dc12 JIT: More nitty style tweakage, aka territory marking. 
llvm-svn: 118973
 2010-11-13 02:48:57 +00:00
Daniel Dunbar
1f695efa5e report_fatal_error: Simplify a possible ambiguity. 
llvm-svn: 118972
 2010-11-13 02:48:51 +00:00
Daniel Dunbar
5517a3a720 More style nittiness. 
llvm-svn: 118971
 2010-11-13 02:48:46 +00:00
Daniel Dunbar
8b2d88846b Clean up some doxyments/style. 
llvm-svn: 118970
 2010-11-13 02:48:41 +00:00
Chris Lattner
ce47bb4409 add operand iterator apis to MachineInstr, patch by ether zhhb. 
llvm-svn: 118862
 2010-11-12 00:00:21 +00:00
Dan Gohman
f3bf6591e0 Add helper functions for computing the Location of load, store, 
and vaarg instructions.

llvm-svn: 118845
 2010-11-11 21:50:19 +00:00
Dan Gohman
b20b7d2ec2 Factor out Instruction::isSafeToSpeculativelyExecute's code for 
testing for dereferenceable pointers into a helper function,
isDereferenceablePointer.  Teach it how to reason about GEPs
with simple non-zero indices.

Also eliminate ArgumentPromtion's IsAlwaysValidPointer,
which didn't check for weak externals or out of range gep
indices.

llvm-svn: 118840
 2010-11-11 21:23:25 +00:00
Rafael Espindola
8555d32c9e Initial comdat implementation. 
llvm-svn: 118805
 2010-11-11 18:13:52 +00:00
Dan Gohman
7c06994452 Add comments. 
llvm-svn: 118799
 2010-11-11 17:33:39 +00:00
Dan Gohman
503ad44b14 Add brief doxygen comments for AliasResult enum values. 
llvm-svn: 118792
 2010-11-11 16:37:38 +00:00
Dan Gohman
b476dc0f55 Set NonLocalDepInfo's Size field to UnknownSize when invalidating 
it, so that it doesn't appear to be a known size.

llvm-svn: 118748
 2010-11-11 00:20:27 +00:00
Jakob Stoklund Olesen
313b78d28e Insert two blank SlotIndexes between basic blocks instead of just one. 
This is the first small step towards using closed intervals for liveness instead
of the half-open intervals we're using now.

We want to be able to distinguish between a SlotIndex that represents a variable
being live-out of a basic block, and an index representing a variable live-in to
its successor.

That requires two separate indexes between blocks. One for live-outs and one for
live-ins.

With this change, getMBBEndIdx(MBB).getPrevSlot() becomes stable so it stays
greater than any instructions inserted at the end of MBB.

llvm-svn: 118747
 2010-11-11 00:19:20 +00:00
Jakob Stoklund Olesen
3eb4a7b12d Delete unused function. 
llvm-svn: 118743
 2010-11-10 23:56:02 +00:00
Devang Patel
5520a6fc97 Take care of special characters while creating named MDNode name to hold function specific local variable's info. 
This fixes radar 8653152. I am checking in testcase as a separate check-in.

llvm-svn: 118726
 2010-11-10 22:19:21 +00:00
Dan Gohman
2b4e8302a6 Enhance GVN to do more precise alias queries for non-local memory 
references. For example, this allows gvn to eliminate the load in
this example:

  void foo(int n, int* p, int *q) {
    p[0] = 0;
    p[1] = 1;
    if (n) {
      *q = p[0];
    }
  }

llvm-svn: 118714
 2010-11-10 20:37:15 +00:00
Andrew Trick
9d60f59b55 RABasic is nearly functionally complete. There are a few remaining 
benchmarks hitting an assertion.
Adds LiveIntervalUnion::collectInterferingVRegs.
Fixes "late spilling" by checking for any unspillable live vregs among
all physReg aliases.

llvm-svn: 118701
 2010-11-10 19:18:47 +00:00
Rafael Espindola
d05bf9ffe0 Use MCSectionELF in places we know we have an ELF section. 
llvm-svn: 118699
 2010-11-10 19:05:07 +00:00
Dan Gohman
04e46fa78b Rename AccessesArguments and AccessesArgumentsReadonly, and rewrite 
their comments.

llvm-svn: 118696
 2010-11-10 18:30:00 +00:00
Dan Gohman
271a238243 Fix a copy+pasto Duncan noticed. 
llvm-svn: 118693
 2010-11-10 18:18:23 +00:00
Dan Gohman
65a3841f03 Add a doesAccessArgPointees helper function, and update code to use 
it, and to be consistent.

llvm-svn: 118692
 2010-11-10 18:17:28 +00:00
Dan Gohman
9ae50022a1 Factor out the code for testing whether a function accesses 
arbitrary memory into a helper function, and adjust some comments.

llvm-svn: 118687
 2010-11-10 17:34:04 +00:00
Dan Gohman
3cc59e791f Give NonLocalDepResult a NonLocalDepEntry member, replacing 
indivudal members holding the same data, to clarify the relationship
between NonLocalDepResult and NonLocalDepEntry.

llvm-svn: 118686
 2010-11-10 17:15:52 +00:00
Michael J. Spencer
000dd79ae8 System/Path: Update comments to match code. 
llvm-svn: 118682
 2010-11-10 15:05:50 +00:00
Duncan Sands
7f44d33a4c There is no EndPtr anymore - reinterpret the original comment in terms 
of InputData.

llvm-svn: 118677
 2010-11-10 07:46:36 +00:00
Jim Grosbach
4e3653e4e1 Update ARMConstantPoolValue to not use a modifier string. Use an explicit 
VariantKind marker to indicate the additional information necessary. Update
MC to handle the new Kinds. rdar://8647623

llvm-svn: 118671
 2010-11-10 03:26:07 +00:00
Dan Gohman
1571dfc883 Make ModRefBehavior a lattice. Use this to clean up AliasAnalysis 
chaining and simplify FunctionAttrs' GetModRefBehavior logic.

llvm-svn: 118660
 2010-11-10 01:02:18 +00:00
Rafael Espindola
3c0f11a265 Fixed version of 118639 with an extra assert to catch similar problems 
earlier. Implicit bool -> int conversions are evil!

llvm-svn: 118651
 2010-11-09 23:42:07 +00:00
Rafael Espindola
a16ec0145e Revert previous patch. Missed a case. 
llvm-svn: 118645
 2010-11-09 22:54:38 +00:00
Rafael Espindola
5e39a6d951 Remove IsExplicit. It was always false. 
llvm-svn: 118639
 2010-11-09 22:37:44 +00:00
Dan Gohman
2a7e94d265 Convert comments to doxygen syntax. 
llvm-svn: 118628
 2010-11-09 20:33:57 +00:00
Dan Gohman
27fb58d9c7 AccessesArgumentsReadonly is read-only. 
llvm-svn: 118615
 2010-11-09 19:50:00 +00:00
Dan Gohman
d50f969460 Add a AccessesArgumentsReadonly ModRefBehavior value, so that the intrinsic 
property IntrReadArgMem can be modeled.

llvm-svn: 118614
 2010-11-09 19:48:55 +00:00
Dan Gohman
9bdf92c92c Factor out the logic for onlyReadsMemory into a helper function. 
llvm-svn: 118611
 2010-11-09 19:43:24 +00:00
Dan Gohman
3de0bd24db Delete AccessesArgumentsAndGlobals, which was unused. 
llvm-svn: 118610
 2010-11-09 19:41:37 +00:00
Michael J. Spencer
3ae9fd29ae System/Path/Windows: Change GetRootDirectory to return file:/// instead of C:/. 
llvm-svn: 118502
 2010-11-09 15:10:45 +00:00
Dan Gohman
227bf9fea9 Add some comments noting some correspondences between ModRefBehavior 
values, LLVM IR function attributes, and LLVM intrinsic attributes.

llvm-svn: 118455
 2010-11-08 23:46:02 +00:00
Devang Patel
af569979a6 Document parameters. Fix typos. 
llvm-svn: 118424
 2010-11-08 18:28:34 +00:00
Dan Gohman
6909ecf66e Extend the AliasAnalysis::pointsToConstantMemory interface to allow it 
to optionally look for constant or local (alloca) memory.

Teach BasicAliasAnalysis::pointsToConstantMemory to look through Select
and Phi nodes, and to support looking for local memory.

Remove FunctionAttrs' PointsToLocalOrConstantMemory function, now that
AliasAnalysis knows all the tricks that it knew.

llvm-svn: 118412
 2010-11-08 16:45:26 +00:00
Dan Gohman
ee58dba24c Delete getIntrinsicModRefBehavior. Clients can just use the normal 
getModRefBehavior now, since it now understands intrinsics as well
as normal functions.

llvm-svn: 118411
 2010-11-08 16:11:19 +00:00
Dan Gohman
c3202f8550 Add comments. 
llvm-svn: 118408
 2010-11-08 15:34:42 +00:00
Che-Liang Chiou
4cc802839c Add registry hook for assembly text output 
llvm-svn: 118394
 2010-11-08 02:21:17 +00:00
Rafael Espindola
fd7a61257b typos 
llvm-svn: 118376
 2010-11-07 13:48:10 +00:00
Rafael Espindola
49a9710db0 Add method for checking if a path is a symbolic link. 
llvm-svn: 118367
 2010-11-07 04:36:50 +00:00
Rafael Espindola
877bb5ba4b Relax dwarf line fragments. This fixes a crash in the included testcase. 
llvm-svn: 118365
 2010-11-07 02:07:12 +00:00
Benjamin Kramer
96ac873014 Prune includes. 
llvm-svn: 118342
 2010-11-06 11:45:59 +00:00
Chris Lattner
5d1361e9ed Reimplement BuildResultOperands to be in terms of the result instruction's 
operand list instead of the operand list redundantly declared on the alias
or instruction.

With this change, we finally remove the ins/outs list on the alias.  Before:
  def : InstAlias<(outs GR16:$dst), (ins GR8 :$src),
                  "movsx $src, $dst",
                  (MOVSX16rr8W GR16:$dst, GR8:$src)>;
After:
  def : InstAlias<"movsx $src, $dst",
                  (MOVSX16rr8W GR16:$dst, GR8:$src)>;

This also makes the alias mechanism more general and powerful, which will
be exploited in subsequent patches.

llvm-svn: 118329
 2010-11-06 07:14:44 +00:00
Jim Grosbach
a98b9ba916 Add '.code 32' assembler directive to MC streamers. 
llvm-svn: 118309
 2010-11-05 22:40:09 +00:00