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34746 Commits

Author SHA1 Message Date
Evan Cheng 5ee9cf6bca Test case for 3-address conversion. 
llvm-svn: 42664
 2007-10-05 23:33:09 +00:00
Evan Cheng 1151ffde70 Commute x86 cmove instructions by swapping the operands and change the condition 
to its inverse.
Testing this as llcbeta

llvm-svn: 42661
 2007-10-05 23:13:21 +00:00
Evan Cheng 42a13757de This is done. 
llvm-svn: 42656
 2007-10-05 22:34:59 +00:00
Evan Cheng 484cab7a2f Enable convertToThreeAddress for X86 by default. 
llvm-svn: 42655
 2007-10-05 22:31:10 +00:00
Devang Patel a69f987b66 Fix bug in updating dominance frontier after loop 
unswitch when frontier includes basic blocks that 
are not inside loop.

llvm-svn: 42654
 2007-10-05 22:29:34 +00:00
Evan Cheng d3ccf00870 INC64_32r -> LEA64_32r is better than INC64_32r -> LEA32r, but it still can 
cause performance degradation.

llvm-svn: 42653
 2007-10-05 21:55:32 +00:00
Evan Cheng fa2c828687 In 64-bit mode, avoid using leal with 32-bit 32-bit address size, e.g. 
leal 1(%ecx), %edi, which requires 67H prefix.

llvm-svn: 42647
 2007-10-05 20:34:26 +00:00
Dale Johannesen c0154c06d6 First round of ppc long double. call/return and 
basic arithmetic works.
Rename RTLIB long double functions to distinguish
different flavors of long double; the lib functions
have different names, alas.

llvm-svn: 42644
 2007-10-05 20:04:43 +00:00
Evan Cheng aac0f8e351 Add support to convert more 64-bit instructions to 3-address instructions. 
llvm-svn: 42642
 2007-10-05 18:20:36 +00:00
Evan Cheng 97eba74a52 ADC and SBB uses EFLAGS. 
llvm-svn: 42640
 2007-10-05 17:59:57 +00:00
Chris Lattner f85527e131 Mark count method const. 
llvm-svn: 42639
 2007-10-05 17:40:38 +00:00
Dan Gohman 43c29dce18 Change a few more spaces to tabs in assembly output. 
llvm-svn: 42638
 2007-10-05 15:58:41 +00:00
Dan Gohman b074f23dff Change a space to a tab in the assembly output of a .globl directive 
for consistency.

llvm-svn: 42637
 2007-10-05 15:54:58 +00:00
Dan Gohman 12334acbfb Legalize support for MUL_LOHI and DIVREM. 
llvm-svn: 42636
 2007-10-05 14:17:22 +00:00
Dan Gohman 2682bb6df2 Fix a typo in a comment. 
llvm-svn: 42635
 2007-10-05 14:11:58 +00:00
Dan Gohman 1a77dfba15 Provide names for MUL_LOHI and DIVREM operators. 
llvm-svn: 42634
 2007-10-05 14:11:04 +00:00
Dan Gohman 3c2c1c3cce SMUL_LOHI and UMUL_LOHI are commutative. 
llvm-svn: 42633
 2007-10-05 14:09:33 +00:00
Dan Gohman 5b89b1ef8f Define target-indepenent SDNode types for multiply and divide that 
produce two results.

llvm-svn: 42632
 2007-10-05 14:07:56 +00:00
Duncan Sands 99452793ac Fix typo in comment. 
llvm-svn: 42631
 2007-10-05 10:37:00 +00:00
Evan Cheng a8a9c15e30 Testing convertToThreeeAddress as X86 llcbeta. 
llvm-svn: 42630
 2007-10-05 08:04:01 +00:00
Daniel Berlin f86366ec2d Fix intersectWithComplement bug noticed by Curtis Dunham 
Optimize |= case for empty RHS

llvm-svn: 42629
 2007-10-05 05:10:53 +00:00
Evan Cheng 90a4185b5f New test case. 
llvm-svn: 42628
 2007-10-05 01:44:22 +00:00
Evan Cheng 84d0ebc10a Chain producing nodes cannot be moved, not chain reading nodes. 
llvm-svn: 42627
 2007-10-05 01:42:35 +00:00
Evan Cheng 991cf47221 Oops. Didn't mean to leave this in. 
llvm-svn: 42626
 2007-10-05 01:39:40 +00:00
Evan Cheng 79e9713b11 If a node that defines a physical register that is expensive to copy. The 
scheduler will try a number of tricks in order to avoid generating the
copies. This may not be possible in case the node produces a chain value
that prevent movement. Try unfolding the load from the node before to allow
it to be moved / cloned.

llvm-svn: 42625
 2007-10-05 01:39:18 +00:00
Evan Cheng a851e2b92e Added storeRegToAddr, loadRegFromAddr, and unfoldMemoryOperand's. 
llvm-svn: 42624
 2007-10-05 01:34:55 +00:00
Evan Cheng 6912b50958 Not needed any more. 
llvm-svn: 42623
 2007-10-05 01:34:14 +00:00
Evan Cheng 1ef9edce5f Forgot these. 
llvm-svn: 42622
 2007-10-05 01:33:45 +00:00
Evan Cheng f4cf5dcdd2 - Added a few target hooks to generate load / store instructions from / to any 
address (not just from / to frameindexes).
- Added target hooks to unfold load / store instructions / SDNodes into separate
load, data processing, store instructions / SDNodes.

llvm-svn: 42621
 2007-10-05 01:32:41 +00:00
Evan Cheng 4852303bdb Add a variant of getTargetNode() that takes a vector of MVT::ValueType. 
llvm-svn: 42620
 2007-10-05 01:10:49 +00:00
Evan Cheng fd11ef4665 Silence a warning. 
llvm-svn: 42619
 2007-10-05 01:09:32 +00:00
Daniel Berlin f5009110bf Fix the previous bug a slightly different way (by modifying how find_next works) 
llvm-svn: 42613
 2007-10-04 21:27:17 +00:00
Daniel Berlin c1973961c9 Fix off by one error in iterator 
llvm-svn: 42612
 2007-10-04 21:18:20 +00:00
Bill Wendling eaa909f08e Support Objective C++ too. 
llvm-svn: 42610
 2007-10-04 18:47:25 +00:00
Bill Wendling c20518d0df Added testcase for creation of metadata with null pointers. 
llvm-svn: 42609
 2007-10-04 18:46:06 +00:00
Chris Lattner 1f2b5f0e13 add a note. 
llvm-svn: 42607
 2007-10-04 15:47:27 +00:00
Bill Wendling 2fba4a85ea un-XFAIL this test. 
llvm-svn: 42606
 2007-10-04 09:33:08 +00:00
Daniel Berlin ffffead7df It helps a lot when you check for the end of your list before randomly 
dereferencing things.

llvm-svn: 42605
 2007-10-04 05:29:36 +00:00
Daniel Berlin 2738730c0f Make SparseBitVector::set actually work properly when sets are not in ascending or descending order. 
llvm-svn: 42604
 2007-10-04 05:25:51 +00:00
Gordon Henriksen 14d7680b00 Do use the actual ocaml stdlib (not the install dir) to find the 
caml/*.h headers.

llvm-svn: 42599
 2007-10-04 00:07:50 +00:00
Neil Booth 8f1946fa22 Add APFloat -> hexadecimal string conversion, as per %a and %A in C99. 
Useful for diagnostics and debugging.

llvm-svn: 42598
 2007-10-03 22:26:02 +00:00
Owen Anderson 8313e75ea7 Completely merge the implementation details of DomTree and PostDomTree. 
Also, add a FIXME for a bug in PostDomTree calculation I noticed while writing this,

llvm-svn: 42593
 2007-10-03 21:25:45 +00:00
Owen Anderson 87337924d5 Add a GraphTraits partial specialization to make the inverse of an inverse be the same as the underlying graph. 
llvm-svn: 42592
 2007-10-03 21:24:38 +00:00
Devang Patel 3574759d85 Fix 80 col violation. 
llvm-svn: 42591
 2007-10-03 21:17:43 +00:00
Devang Patel e192e32577 Refactor code in a separate method. 
llvm-svn: 42590
 2007-10-03 21:16:08 +00:00
Chris Lattner 99f6ab7e4c Add initial iterator support for folding set. 
llvm-svn: 42589
 2007-10-03 21:12:09 +00:00
Chris Lattner f0e5011d21 Clarify that shifts that are too large are undefined. 
llvm-svn: 42588
 2007-10-03 21:01:14 +00:00
Chris Lattner 8c41ed61d1 Simplify implementation of the FoldingSet circular list, a necessary step 
to giving it iterators.

llvm-svn: 42586
 2007-10-03 20:45:43 +00:00
Dan Gohman c731c97fac Use empty() member functions when that's what's being tested for instead 
of comparing begin() and end().

llvm-svn: 42585
 2007-10-03 19:26:29 +00:00
Dan Gohman 8c43e41d9b Fix a using namespace llvm; in a header file. 
llvm-svn: 42584
 2007-10-03 19:04:09 +00:00
Bill Wendling 354504060c Temporarily XFAIL this test. 
llvm-svn: 42583
 2007-10-03 17:46:54 +00:00
Dale Johannesen 9d559cfff5 Tone down an overzealous optimization. 
llvm-svn: 42582
 2007-10-03 17:45:27 +00:00
Chris Lattner 87a3dbe743 remove extraneous tag 
llvm-svn: 42581
 2007-10-03 17:34:29 +00:00
Chris Lattner 6a6fb7f7b7 remove misleading documentation: LLVM has no atomic support yet. 
llvm-svn: 42580
 2007-10-03 17:33:51 +00:00
Chris Lattner 4bdb84fe53 add a note 
llvm-svn: 42579
 2007-10-03 17:10:03 +00:00
Tanya Lattner 30f65fe4a7 Fix PR1719, by not marking llvm.global.annotations internal. 
llvm-svn: 42578
 2007-10-03 17:05:40 +00:00
Neil Booth 1ca1f80b38 Tweak RoundAwayFromZero the bit number below which is truncated, and make 
it const.

Preparation for APFloat -> hexadecimal string conversion.

llvm-svn: 42576
 2007-10-03 15:16:41 +00:00
Gordon Henriksen 80f35e0d4c Regenerate. 
llvm-svn: 42575
 2007-10-03 12:07:14 +00:00
Gordon Henriksen 485739d801 Fixing a typo in configure.ac. 
Patch by Adam Goode.

llvm-svn: 42574
 2007-10-03 12:06:41 +00:00
Chris Lattner 4d4e9cdb62 add a note 
llvm-svn: 42573
 2007-10-03 06:10:59 +00:00
Chris Lattner b511029eaf testcase for PR1647 
llvm-svn: 42570
 2007-10-03 05:29:07 +00:00
Chris Lattner d66e0cd6c0 Fix PR1719, by not marking llvm.noinline internal. 
llvm-svn: 42565
 2007-10-03 03:59:15 +00:00
Chris Lattner 21ba176c4b Bill's example is still not enough to repro this, but it has other issues that 
seem significant as well.

llvm-svn: 42564
 2007-10-03 03:40:24 +00:00
Owen Anderson b60f254975 Factor some code from the DomTree and PostDomTree calculate methods up into 
each one's runOnFunction method.

llvm-svn: 42563
 2007-10-03 03:20:17 +00:00
Bill Wendling 3efc0758ae Another micro-opt. 
llvm-svn: 42554
 2007-10-02 21:49:31 +00:00
Bill Wendling f214ff8701 Another missed optimization with LICM. 
llvm-svn: 42552
 2007-10-02 21:43:06 +00:00
Bill Wendling 855011e5c6 Small label changes. 
llvm-svn: 42549
 2007-10-02 21:02:53 +00:00
Bill Wendling 4eb7ca4b4c Now with source code. 
llvm-svn: 42548
 2007-10-02 21:01:16 +00:00
Bill Wendling 96ed3bb2d4 Now with LL code! 
llvm-svn: 42547
 2007-10-02 20:54:32 +00:00
Bill Wendling 9c4d61b523 Another missed optimization. 
llvm-svn: 42546
 2007-10-02 20:42:59 +00:00
Bill Wendling 88ea107fdb Micro-optimization -- missed LICM opportunity. 
llvm-svn: 42542
 2007-10-02 19:55:05 +00:00
Gordon Henriksen a3fc412d82 Updating my credits entry. 
llvm-svn: 42541
 2007-10-02 18:04:24 +00:00
Dale Johannesen dd89d2758e Document new sqrt and powi handling. 
llvm-svn: 42540
 2007-10-02 17:47:38 +00:00
Dale Johannesen 4d4e77af8e Rewrite sqrt and powi to use anyfloat. By popular demand. 
llvm-svn: 42537
 2007-10-02 17:43:59 +00:00
Gordon Henriksen da5d5b57bf Regenerate. 
llvm-svn: 42533
 2007-10-02 16:42:22 +00:00
Gordon Henriksen 3be1f10097 Providing --with-ocaml-libdir for ./configure. The default is the 
stdlib if it's beneath --prefix, and is libdir/ocaml otherwise.

If someone has a better way than this to test whether $B is a path
within $A, I'd love to hear it:

  if test "$A" \< "$B" -a "$B" \< "${A}~"

llvm-svn: 42532
 2007-10-02 16:42:10 +00:00
Gordon Henriksen acc2a838fa Regenerate. 
llvm-svn: 42529
 2007-10-02 10:14:42 +00:00
Gordon Henriksen 61400d1192 Fixing (harmless) typos. 
llvm-svn: 42528
 2007-10-02 10:14:32 +00:00
Gordon Henriksen e61dd67a2b Regenerate. 
llvm-svn: 42527
 2007-10-02 09:50:32 +00:00
Gordon Henriksen d48f4598a4 Add explicit --enable-bindings option to configure. 
llvm-svn: 42526
 2007-10-02 09:50:18 +00:00
Devang Patel 18c2fa7225 Fix test. 
llvm-svn: 42522
 2007-10-02 00:47:43 +00:00
Owen Anderson 888477339e Fix typo. 
llvm-svn: 42521
 2007-10-02 00:44:20 +00:00
Owen Anderson d263cfa1c0 Mention memdep in the AA documentation. 
llvm-svn: 42519
 2007-10-02 00:43:25 +00:00
Devang Patel 0d4958f1b0 New test. 
llvm-svn: 42517
 2007-10-02 00:39:19 +00:00
Tanya Lattner cf316c2eb7 If the user did not check out LLVM and request it to be built, it should be a build error. This relies on the user having a successful build of LLVM, but the tests will fail if they dont. 
llvm-svn: 42514
 2007-10-02 00:19:27 +00:00
Evan Cheng 1f79ba6fe6 Refactor code to add load / store folded instructions -> register only 
instructions reverse map.

llvm-svn: 42509
 2007-10-01 23:44:33 +00:00
Dale Johannesen b6c05b1f90 Fix stride computations for long double arrays. 
llvm-svn: 42508
 2007-10-01 23:08:35 +00:00
Dan Gohman 9765cc3bbb Move the code that emits the .file directives so that it runs after the 
SourceFiles list is fully filled in so that it sees all of the files.

llvm-svn: 42506
 2007-10-01 22:40:20 +00:00
Evan Cheng 89ca5b091f -pre-RA-sched=none, simple, simple-noitin are gone. 
llvm-svn: 42505
 2007-10-01 22:17:20 +00:00
Devang Patel e595d107e6 PR 1603 test case. 
llvm-svn: 42502
 2007-10-01 21:22:57 +00:00
Evan Cheng a3a67596f6 Remove simple scheduler. 
llvm-svn: 42499
 2007-10-01 20:44:07 +00:00
Devang Patel 2a60ff1aeb Relax unsafe use check. If there is one unconditional use inside the loop then it is safe to promote value even if there is another conditional use inside the loop. 
llvm-svn: 42493
 2007-10-01 18:12:58 +00:00
Evan Cheng a1b7e95039 Typo. X86comi doesn't read / write chain's. 
llvm-svn: 42492
 2007-10-01 18:12:48 +00:00
Dale Johannesen 28e19a48ce Add getABITypeSize, getABITypeSizeInBits 
llvm-svn: 42488
 2007-10-01 16:03:14 +00:00
Dan Gohman 9b943453f5 Add empty() member functions to a few container-like classes. 
llvm-svn: 42487
 2007-10-01 16:01:23 +00:00
Dale Johannesen c0855f8a88 remove dup comment 
llvm-svn: 42486
 2007-09-30 19:08:12 +00:00
Dale Johannesen 9150652b21 Constant fold int-to-long-double conversions; 
use APFloat for int-to-float/double; use
round-to-nearest for these (implementation-defined,
seems to match gcc).

llvm-svn: 42484
 2007-09-30 18:19:03 +00:00
Dale Johannesen 28a2c4a9c4 Simplify and fix signed int -> FP conversions. 
llvm-svn: 42483
 2007-09-30 18:17:01 +00:00
Gordon Henriksen 0b7cf862bc AsmPrinters overriding getAnalysisUsage should call super. 
And not super's super, either.

llvm-svn: 42482
 2007-09-30 13:39:29 +00:00
Chris Lattner b06396c588 Add a helper useful when mapping from a map element to its hash node. 
llvm-svn: 42480
 2007-09-30 08:31:46 +00:00
Owen Anderson 46ade4eb9b Template-ize more of the DomTree internal implementation details. Only the calculate() methods for DomTree and PostDomTree remain to be merged/template-ized. 
llvm-svn: 42476
 2007-09-30 04:17:16 +00:00
Chris Lattner bd0079c603 document DenseSet. 
llvm-svn: 42475
 2007-09-30 00:58:59 +00:00
Chris Lattner 18a9273e61 Add a new DenseSet abstraction. 
llvm-svn: 42474
 2007-09-30 00:47:20 +00:00
Duncan Sands 7b908dda92 Add newline at end of file. 
llvm-svn: 42470
 2007-09-29 16:38:37 +00:00
Duncan Sands f72ff0c379 Check that the second parameter of init_trampoline 
can be resolved to a function.  This is required
for codegen and used by instcombine.

llvm-svn: 42469
 2007-09-29 16:25:54 +00:00
Gordon Henriksen f5aa229ede This is done already. 
llvm-svn: 42467
 2007-09-29 02:23:08 +00:00
Gordon Henriksen 37ca83d4e9 Collector is the base class for garbage collection code generators. 
This version enhances the previous patch to add root initialization
as discussed here:

http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070910/053455.html

Collector gives its subclasses control over generic algorithms:

  unsigned NeededSafePoints; //< Bitmask of required safe points.
  bool CustomReadBarriers;   //< Default is to insert loads.
  bool CustomWriteBarriers;  //< Default is to insert stores.
  bool CustomRoots;          //< Default is to pass through to backend.
  bool InitRoots;            //< If set, roots are nulled during lowering.

It also has callbacks which collectors can hook:

  /// If any of the actions are set to Custom, this is expected to
  /// be overriden to create a transform to lower those actions to
  /// LLVM IR.
  virtual Pass *createCustomLoweringPass() const;

  /// beginAssembly/finishAssembly - Emit module metadata as
  /// assembly code.
  virtual void beginAssembly(Module &M, std::ostream &OS,
                             AsmPrinter &AP,
                             const TargetAsmInfo &TAI) const;
  virtual void finishAssembly(Module &M,
                              CollectorModuleMetadata &CMM,
                              std::ostream &OS, AsmPrinter &AP,
                              const TargetAsmInfo &TAI) const;  

Various other independent algorithms could be implemented, but were
not necessary for the initial two collectors. Some examples are
listed here:

http://llvm.org/docs/GarbageCollection.html#collector-algos

llvm-svn: 42466
 2007-09-29 02:13:43 +00:00
Gordon Henriksen 6547e5a2bc Demoting CHelpers.h to include/llvm/Support. 
llvm-svn: 42465
 2007-09-29 01:38:42 +00:00
Daniel Berlin 342181c51d Switch to densemap rather than std::set 
llvm-svn: 42462
 2007-09-29 00:50:40 +00:00
Gordon Henriksen 2717f3bd60 Regenerate. 
llvm-svn: 42461
 2007-09-29 00:42:56 +00:00
Gordon Henriksen da70a73f28 PR1601: etags not configured correctly 
Resolving this by deleting vestigal etags remnants.

llvm-svn: 42460
 2007-09-29 00:42:21 +00:00
Evan Cheng 5fb5a1f389 Enabling new condition code modeling scheme. 
llvm-svn: 42459
 2007-09-29 00:00:36 +00:00
Devang Patel f96df8d777 Do not ignore packed member size while selecting union type. 
llvm-svn: 42458
 2007-09-28 23:54:26 +00:00
Dan Gohman a90183e7d1 Teach SplitVectorOp how to split INSERT_VECTOR_ELT. 
llvm-svn: 42457
 2007-09-28 23:53:40 +00:00
Tanya Lattner 586eb8ee47 Update how to release document. 
Add release version to getting started guide.

llvm-svn: 42454
 2007-09-28 22:50:54 +00:00
Evan Cheng a5e595d23a If two instructions are both two-address code, favors (schedule closer to 
terminator) the one that has a CopyToReg use. This fixes
2006-05-11-InstrSched.ll with -new-cc-modeling-scheme.

llvm-svn: 42453
 2007-09-28 22:32:30 +00:00
Chris Lattner 8861abe6f2 really fix PR1581, thanks to Daniel Dunbar for pointing 
this out.

llvm-svn: 42448
 2007-09-28 20:50:50 +00:00
Chris Lattner 2be9ec5c91 Make Value::getNameLen not crash on an empty name, fixing PR1712. 
llvm-svn: 42444
 2007-09-28 20:09:40 +00:00
Evan Cheng f72693f36e Remove a poor scheduling heuristic. 
llvm-svn: 42443
 2007-09-28 19:37:35 +00:00
Evan Cheng 038dcc5136 Trim some unneeded fields. 
llvm-svn: 42442
 2007-09-28 19:24:24 +00:00
Dale Johannesen 03d4ad9f03 Record latest work. 
llvm-svn: 42441
 2007-09-28 18:46:28 +00:00
Dale Johannesen 789b5a505b Fix long double -> uint64 conversion. 
llvm-svn: 42440
 2007-09-28 18:44:17 +00:00
Dale Johannesen 6bf69ed3cc minor long double related changes 
llvm-svn: 42439
 2007-09-28 18:06:58 +00:00
Dan Gohman 25d506c41b Make the checks for DW_FORM_data4 consistent with the others, and 
add more such code for DIEDwarfLabel::SizeOf and DIEObjectLabel::SizeOf.

llvm-svn: 42435
 2007-09-28 16:50:28 +00:00
Dan Gohman 0d23d63b9e Use 32-bit data directives for DW_FORM_data4 format data, even on 
targets with 64-bit addresses.

llvm-svn: 42434
 2007-09-28 15:43:33 +00:00
Rafael Espindola 6c04ac1db0 Refactor the memcpy lowering for the x86 target. 
The only generated code difference is that now we call memcpy when
the size of the array is unknown. This matches GCC behavior and is
better since the run time value can be arbitrarily large.

llvm-svn: 42433
 2007-09-28 12:53:01 +00:00
Evan Cheng 1f516560d1 Stop inventing new words. :-) 
llvm-svn: 42429
 2007-09-28 01:35:02 +00:00
Owen Anderson d0d5c11d18 Remove unneeded #include. 
llvm-svn: 42428
 2007-09-28 01:25:07 +00:00
Owen Anderson 0fbef94cd0 Have PostDomTree use the newly templated DFSPass. 
llvm-svn: 42427
 2007-09-28 01:23:47 +00:00
Evan Cheng edfc5b2204 Pessimisively assume ADJCALLSTACKDOWN / ADJCALLSTACKUP (which becomes sub / add) clobbers EFLAGS. 
llvm-svn: 42426
 2007-09-28 01:19:48 +00:00
Dale Johannesen 25a00a63eb Add sqrt and powi intrinsics for long double. 
llvm-svn: 42423
 2007-09-28 01:08:20 +00:00
Dale Johannesen 1d1d0e7735 Don't do SRA for unions with long double fields. 
Fixes a SWB crash.

llvm-svn: 42422
 2007-09-28 00:21:38 +00:00
Owen Anderson ee73e0b8cb Convert DFSPass into a templated friend function, in preparation for making it common to DomTree and PostDomTree. 
llvm-svn: 42420
 2007-09-27 23:23:00 +00:00
Dan Gohman a1d46c7d0a TargetAsmInfo::getAddressSize() was incorrect for x86-64 and 64-bit targets 
other than PPC64. Instead of fixing it, just remove it and fix all the
places that use it to use TargetData::getPointerSize() instead, as there
aren't very many. Most of the references were in DwarfWriter.cpp.

llvm-svn: 42419
 2007-09-27 23:12:31 +00:00
Gordon Henriksen 613afce430 CollectorMetadata abstractly describes stack maps for a function. 
It includes:

 - location and of each safe point in machine code (identified by a
   label)
 - location of each root within the stack frame (identified by an
   offset), including the metadata tag provided to llvm.gcroot in
   the user program
 - size of the stack frame (for collectors which want to cheat on
   stack crawling :)
 - and eventually will include liveness

It is to be populated by back-ends during code-generation.

CollectorModuleMetadata aggregates this information across the
entire module.

llvm-svn: 42418
 2007-09-27 22:18:46 +00:00
Evan Cheng 99dc695da5 Use GR64 in 64-bit mode. 
llvm-svn: 42417
 2007-09-27 21:50:05 +00:00
Gordon Henriksen 658c57eb66 My previous Registry.h header, as well as Collectors.h, which is the 
registry for dynamically-loaded garbage collection compiler plugins.

llvm-svn: 42415
 2007-09-27 19:34:27 +00:00
Gordon Henriksen 0076a6727e GarbageCollection.html is expanded to encompass the coming 
capabilities. This is a major rewrite and is easier to read en toto
rather than patchwise.

llvm-svn: 42414
 2007-09-27 19:31:36 +00:00
Evan Cheng 5a71402be6 Doh. Calls clobber EFLAGS. 
llvm-svn: 42413
 2007-09-27 19:01:55 +00:00
Evan Cheng e6f92253f5 Avoid inserting a live register more than once. 
llvm-svn: 42410
 2007-09-27 18:46:06 +00:00
Tanya Lattner 0d675ee06e Couple of fixes to mention bunzip2 and make instructions more clear. 
llvm-svn: 42407
 2007-09-27 18:14:33 +00:00
Devang Patel f68d3e1a0d While searching for appropriate place for temporaries, do not over-incerement iterator. 
llvm-svn: 42406
 2007-09-27 18:02:47 +00:00
Devang Patel 11611f876e Mention Loop Index Split 
llvm-svn: 42405
 2007-09-27 17:32:04 +00:00
Chris Lattner d2bc9d8c77 new testcase for PR1708 
llvm-svn: 42398
 2007-09-27 15:47:16 +00:00
Daniel Berlin a447de7065 Ignore redundant constraints 
llvm-svn: 42397
 2007-09-27 15:42:23 +00:00
Nick Lewycky 3934961878 Build the correct range for loops with unusual bounds. Fix from Jay Foad. 
llvm-svn: 42394
 2007-09-27 14:12:54 +00:00
Bill Wendling c9a8c74d28 No, really, it *is* SSSE3. ;-) 
llvm-svn: 42393
 2007-09-27 08:47:31 +00:00
Duncan Sands a1779909ff SSSE3 -> SSE3. Reported by Alex Kellett. 
llvm-svn: 42392
 2007-09-27 08:24:36 +00:00
Duncan Sands 2f060736e2 Grammer fix reported by Alex Kellett. 
llvm-svn: 42391
 2007-09-27 08:24:02 +00:00
Evan Cheng 75439b3b78 Silence a compiler warning. 
llvm-svn: 42389
 2007-09-27 07:35:39 +00:00