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5528 Commits

Author SHA1 Message Date
Devang Patel
dc42bc3baf Fix typo in assertion check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37864 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-04 01:05:22 +00:00
Dan Gohman
ff8b732feb Remove declarations for code no longer in the tree, to avoid confusion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37840 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-02 15:06:26 +00:00
Dan Gohman
a6900c7ad9 Add explicit keywords. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37839 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-02 14:53:37 +00:00
Devang Patel
1a957d563f Add loop info verification mechanism. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37822 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-29 23:13:42 +00:00
Dan Gohman
59310c3dc0 Add an explicit keyword. Thanks Chris! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37819 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-29 22:16:25 +00:00
John Criswell
e644ef7b09 Convert .cvsignore files 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37801 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-29 16:35:07 +00:00
David Greene
8a46d342d8 Fix misue of iterator pointing to erased object. Uncovered by 
_GLIBCXX_DEBUG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37793 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-29 02:45:24 +00:00
Dan Gohman
b6f5b00c3b Add new TargetLowering code to provide the final register type that an 
illegal value type will be transformed to, for code that needs the
register type after all transformations instead of just after the first
transformation.

Factor out the code that uses this information to do copy-from-regs and
copy-to-regs for various purposes into separate functions so that they
are done consistently.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37781 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-28 23:29:44 +00:00
Dan Gohman
8b42bcdd1a Add a default parameter to a SmallVector constructor to allow it to 
be called with just an initial length value, just like in std::vector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37779 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-28 20:27:24 +00:00
Devang Patel
ef6ba18a4c Remove unnecessary comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37774 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-28 02:11:54 +00:00
Devang Patel
dc3a207e78 Handle the case when block dominates itself. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37773 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-28 02:07:08 +00:00
Devang Patel
1ceda1d63e Remove ETForest. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37765 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 20:53:52 +00:00
Dan Gohman
6595cb3000 Rename ("shrinkify") MVT::isExtendedValueType to MVT::isExtendedVT. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37758 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 16:08:04 +00:00
Dan Gohman
c56b9e9f55 Document the encoding of MVT::ValueType. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37757 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 15:28:26 +00:00
Dan Gohman
0ce4b8eda3 Allow DOUT to be used outside of the llvm namespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37753 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 14:09:38 +00:00
Evan Cheng
c33aa47130 Add comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37741 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-26 21:19:07 +00:00
Evan Cheng
4efe74129f Properly handle kills of a physical register which has sub-registers that are read by later instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37739 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-26 21:03:35 +00:00
Evan Cheng
c4f2fe0694 Add immediate sub-registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37738 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-26 20:59:16 +00:00
Dan Gohman
4d2a0f5bd6 Replace ?: with if statements, for clarity. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37735 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-26 16:19:08 +00:00
Dan Gohman
25aceacb29 Simplify the expression for MVT::isExtendedValueType. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37733 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-26 15:20:04 +00:00
Dan Gohman
71d7794856 Simplify the expression for TargetLowering::isTypeLegal. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37732 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-26 15:16:27 +00:00
Dan Gohman
798cb2ab82 Renumber the SimpleValueType values to fill in the hole left by 
removing MVT::Vector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37730 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-26 14:28:59 +00:00
Dan Gohman
d45eddd214 Revert the earlier change that removed the M_REMATERIALIZABLE machine 
instruction flag, and use the flag along with a virtual member function
hook for targets to override if there are instructions that are only
trivially rematerializable with specific operands (i.e. constant pool
loads).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37728 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-26 00:48:07 +00:00
Dan Gohman
bc9d89e6a2 Add a convenince member function for appending strings to a module's 
module-level asm string data.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37726 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-26 00:38:49 +00:00
Dan Gohman
7f32156bb9 Generalize MVT::ValueType and associated functions to be able to represent 
extended vector types. Remove the special SDNode opcodes used for pre-legalize
vector operations, and the special MVT::Vector type used with them. Adjust
lowering and legalize to work with the normal SDNode kinds instead, and to
use the normal MVT functions to work with vector types instead of using the
two special operands that the pre-legalize nodes held.

This allows pre-legalize and post-legalize DAGs, and the code that operates
on them, to be more consistent. Pre-legalize vector operators can be handled
more consistently with scalar operators. And, -view-dag-combine1-dags and
-view-legalize-dags now look prettier for vector code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37719 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-25 16:23:39 +00:00
Dan Gohman
ea859be53c Move ComputeMaskedBits, MaskedValueIsZero, and ComputeNumSignBits from 
TargetLowering to SelectionDAG so that they have more convenient
access to the current DAG, in preparation for the ValueType routines
being changed from standalone functions to members of SelectionDAG for
the pre-legalize vector type changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37704 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-22 14:59:07 +00:00
Duraid Madina
a8c7682939 check in the BigBlock local register allocator 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37703 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-22 08:27:12 +00:00
Owen Anderson
d3fb671480 Have internal df_iterator's use SmallPtrSet instead of std::set. This provides compile time speedups to any pass using df_iterator. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37694 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-21 21:25:36 +00:00
Devang Patel
0e7f728ad1 Move code to update dominator information after basic block is split 
from LoopSimplify.cpp to Dominator.cpp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37689 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-21 17:23:45 +00:00
Dan Gohman
b9f1019696 Rename TargetLowering::getNumElements and friends to 
TargetLowering::getNumRegisters and similar, to avoid confusion with
the actual number of elements for vector types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37687 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-21 14:42:22 +00:00
Tanya Lattner
9933e4bd7d Move inliner pass header file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37664 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 22:29:02 +00:00
Dan Gohman
5cec4db6ae Rename ScalarEvolution::deleteInstructionFromRecords to 
deleteValueFromRecords and loosen the types to all it to accept
Value* instead of just Instruction*, since this is what
ScalarEvolution uses internally anyway. This allows more flexibility
for future uses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37657 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 14:28:31 +00:00
Dan Gohman
82a87a0172 Replace M_REMATERIALIZIBLE and the newly-added isOtherReMaterializableLoad 
with a general target hook to identify rematerializable instructions. Some
instructions are only rematerializable with specific operands, such as loads
from constant pools, while others are always rematerializable. This hook
allows both to be identified as being rematerializable with the same
mechanism.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37644 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 01:48:05 +00:00
Evan Cheng
4e6b1e1d99 Replace CanBeDuplicated() with a M_NOT_DUPLICABLE bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37642 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 01:21:41 +00:00
Chris Lattner
f9521355c4 add isvararg tracking to CCState 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37639 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 00:10:25 +00:00
Evan Cheng
2bdb7d0cc8 Move CorrectExtraCFGEdges() from BranchFolding.cpp to a MachineBasicBlock method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37633 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 22:43:58 +00:00
Tanya Lattner
eff2cdfca7 Modify annotate intrinsic to take 2 additional args: file and line number. 
Fix up Annotate attribute test case.
Fix DebugFilename.c test case to look for right file name.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37632 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 22:23:39 +00:00
Chris Lattner
66250e97ef add helper 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37631 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 21:50:49 +00:00
Dan Gohman
ec82dc9a7c Add keyword explicit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37624 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 14:11:31 +00:00
Evan Cheng
61a2598ebe Added CanBeDuplicated(). It returns true if an instruction can be safely duplicated (e.g. during ifcvt). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37605 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-15 21:13:54 +00:00
Tanya Lattner
6d806e93ce Add local var annotation intrinsic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37603 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-15 20:50:54 +00:00
Evan Cheng
2d7a47a5db No longer needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37598 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-15 19:05:13 +00:00
Dan Gohman
d19534add9 Add a SCEV class and supporting code for sign-extend expressions. 
This created an ambiguity for expandInTy to decide when to use
sign-extension or zero-extension, but it turns out that most of its callers
don't actually need a type conversion, now that LLVM types don't have
explicit signedness. Drop expandInTy in favor of plain expand, and change
the few places that actually need a type conversion to do it themselves.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37591 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-15 14:38:12 +00:00
Chris Lattner
b0760c80b3 m_not should match vector not 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37587 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-15 06:13:47 +00:00
Chris Lattner
cef4b53a3e add a Constant::getAllOnesValue helper function, which works on integers 
AND vectors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37586 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-15 06:10:53 +00:00
Dan Gohman
51eaa86758 Rename MVT::getVectorBaseType to MVT::getVectorElementType. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37579 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-14 22:58:02 +00:00
Dale Johannesen
318093b6f8 Do not treat FP_REG_KILL as terminator in branch analysis (X86). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37578 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-14 22:03:45 +00:00
Dan Gohman
c101e95cb6 Add a target hook to allow loads from constant pools to be rematerialized, and an 
implementation for x86.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37576 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-14 20:50:44 +00:00
Dan Gohman
af67ea7318 Eliminate some redundant newlines in asm output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37574 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-14 15:00:27 +00:00
Christopher Lamb
a321125e8b Add support to tablegen for specifying subregister classes on a per register class basis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37572 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-13 22:20:15 +00:00
Dan Gohman
6595635175 Introduce new SelectionDAG node opcodes VEXTRACT_SUBVECTOR and 
VCONCAT_VECTORS. Use these for CopyToReg and CopyFromReg legalizing in
the case that the full register is to be split into subvectors instead
of scalars. This replaces uses of VBIT_CONVERT to present values as
vector-of-vector types in order to make whole subvectors accessible via
BUILD_VECTOR and EXTRACT_VECTOR_ELT.

This is in preparation for adding extended ValueType values, where
having vector-of-vector types is undesirable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37569 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-13 15:12:02 +00:00
Devang Patel
6857e366f5 Protect updateDFSNumbers() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37560 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-12 17:30:56 +00:00
Devang Patel
9c7ee6b19f Make DFS number manipulation methods private. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37553 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-12 05:49:31 +00:00
Devang Patel
4d42dea253 Break DominatorTree from ETNode. 
Remove unused PostETForest.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37551 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-12 00:54:38 +00:00
Devang Patel
3726b82a55 Maintain DFS number in DomTreeNode itself. 
This means now ETNodes are not useful anymore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37546 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-12 00:14:41 +00:00
Devang Patel
fe7d4e50b8 Add and use DominatorTreeBase::findNearestCommonDominator(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37545 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-11 23:31:22 +00:00
Evan Cheng
bfd2ec4a8e Add a utility routine to check for unpredicated terminator instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37528 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 21:59:56 +00:00
Devang Patel
b5ef06c509 Fix spelling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37522 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 17:59:02 +00:00
David Greene
2513330de8 Factor live variable analysis so it does not do register coalescing 
simultaneously.  Move that pass to SimpleRegisterCoalescing.

This makes it easier to implement alternative register allocation and
coalescing strategies while maintaining reuse of the existing live
interval analysis.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37520 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 17:18:56 +00:00
Devang Patel
dba2413b2e Update LoopSimplify to require and preserve DominatorTree only. 
Now LoopSimplify does not require nor preserve ETForest.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37512 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 01:50:32 +00:00
Devang Patel
0ab301c5fa Add new method - nearestCommonDominator(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37508 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 00:21:17 +00:00
Devang Patel
53c279b194 Use DominatorTree instead of ETForest. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37507 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 00:17:13 +00:00
Devang Patel
f86a73cbef Do not preserve ETForest. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37506 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 00:02:08 +00:00
Devang Patel
e029b2c369 Add instruction level dominates(A,B) interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37504 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 23:52:40 +00:00
Devang Patel
4b90e3a276 Do not use ETForest as well as DomiantorTree. DominatorTree is sufficient. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37501 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 22:17:16 +00:00
Devang Patel
326821ef12 Use DominatorTree instead of ETForest. 
This allows faster immediate domiantor walk.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37500 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 21:57:03 +00:00
Devang Patel
f11cc5c298 Add basic block level properlyDominates(A,B) interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37497 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 21:34:22 +00:00
Devang Patel
259e6cf191 Add BasicBlock level dominates(A,B) interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37493 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 18:39:40 +00:00
Devang Patel
9a51157db5 Maintain ETNode as part of DomTreeNode. 
This adds redundancy for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37492 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 17:47:21 +00:00
Evan Cheng
f94ab6a662 Add a machine instruction flag indicating the instruction can clobber condition code / register(s) used to predicate instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37464 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 10:13:55 +00:00
Chris Lattner
76ea084489 add accessor 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37453 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 01:22:09 +00:00
Devang Patel
4cd950f61b Break friendship. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37450 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 00:59:48 +00:00
Devang Patel
980c4e0466 Rename. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37448 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 00:49:02 +00:00
Devang Patel
f082a9ae6b Simplify class hierarchy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37447 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 00:46:36 +00:00
Devang Patel
743f7e8839 Avoid non-trivial loop unswitching while optimizing for size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37446 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 00:21:03 +00:00
Zhou Sheng
febca3499e Commit first round work of PR1373. "noalias" is now fully supported in 
VMCore, BitCode, and Assembly. Documentation and test case paramattrs.ll
updated also.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37432 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-05 05:28:26 +00:00
Devang Patel
170f2b9bef s/ETNode::getChildren/ETNode::getETNodeChildren/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37426 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 23:45:02 +00:00
Devang Patel
055756bf52 Add FIXMEs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37417 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 17:38:00 +00:00
Devang Patel
bbf8c8e71f Remove unused method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37416 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 16:49:36 +00:00
Devang Patel
83beaee227 s/DominatorTree::createNewNode/DominatorTree::addNewBlock/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37415 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 16:43:25 +00:00
Devang Patel
26a6908768 Add basic block level interface to change immediate dominator 
and create new node.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37414 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 16:22:33 +00:00
Evan Cheng
0370fad74b Move ReplaceUsesOfBlockWith() out of BranchFolding into a MachineBasicBlock general facility. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37408 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 06:44:01 +00:00
Devang Patel
26042420d6 s/llvm::DominatorTreeBase::DomTreeNode/llvm::DomTreeNode/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37407 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 00:32:22 +00:00
Devang Patel
bec7647f98 s/DominatorTreeBase::Node/DominatorTreeBase:DomTreeNode/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37403 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-03 06:26:14 +00:00
Duncan Sands
09085fe63d The semantics of invoke require that we always jump to the unwind block 
(landing pad) when an exception unwinds through the call.  This doesn't
quite match the way the dwarf unwinder works: by default it only jumps to
the landing pad if the catch or filter specification matches, and otherwise
it keeps on unwinding.  There are two ways of specifying to the unwinder
that it should "always" (more on why there are quotes here later) jump to
the landing pad: follow the specification by a 0 typeid, or follow it by
the typeid for the NULL typeinfo.  GCC does the first, and this patch makes
LLVM do the same as gcc.  However there is a problem: the unwinder performs
optimizations based on C++ semantics (it only expects destructors to be
run if the 0 typeid fires - known as "cleanups"), meaning it assumes that no
exceptions will be raised and that the raised exception will be reraised
at the end of the cleanup code.  So if someone writes their own LLVM code
using the exception intrinsics they will get a nasty surprise if they don't
follow these rules.  The other possibility of using the typeid corresponding
to NULL (catch-all) causes the unwinder to make no assumptions, so this is
probably what we should use in the long-run.  However since we are still
having trouble getting exception handling working properly, for the moment
it seems best to closely imitate GCC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37399 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-02 17:16:06 +00:00
Duncan Sands
73ef58ab92 Integrate exception filter support and exception catch support. This 
simplifies the code in DwarfWriter, allows for multiple filters and
makes it trivial to specify filters accompanied by cleanups or catch-all
specifications (see next patch).  What a deal!  Patch blessed by Anton.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37398 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-02 16:53:42 +00:00
Evan Cheng
59aefd15e5 Target specific ifcvt code duplication limit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37384 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-01 08:25:24 +00:00
Chris Lattner
3a4205367d Fix the asmprinter so that a globalvalue can specify an explicit alignment 
smaller than the preferred alignment, but so that the target can actually
specify a minimum alignment if needed.  This fixes some objc protocol
failures Devang tracked down.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37373 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-31 18:57:45 +00:00
Dale Johannesen
95ef406e0f Make stable_sort in tail merging actually be stable (it never was, but didn't 
matter until my last change).  Reenable tail merging by default.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37354 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-29 23:47:50 +00:00
Owen Anderson
1f476f4d84 Put GVN-PRE in all the right places. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37352 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-29 23:36:32 +00:00
Evan Cheng
f277ee4be7 Add missing const qualifiers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37341 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-29 18:35:22 +00:00
Chris Lattner
848377d533 Add a new LLVMBuilder class, which makes it simpler and more uniform to 
create large amounts of instructions by separating the insertion point
logic from the logic of what to create.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37332 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-27 15:09:34 +00:00
Devang Patel
a8d5381209 Disable Tail Merging for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37329 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-25 01:00:24 +00:00
Dan Gohman
fa73ea2d9f Minor comment cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37321 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-24 14:36:04 +00:00
Devang Patel
79b48b8bc0 Add dump() routines for debugging assistance. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37314 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-23 19:55:36 +00:00
Anton Korobeynikov
070280e97f Mark all calls as "could throw", when exceptions are enabled. Emit necessary LP info too. This fixes PR1439 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37311 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-23 11:08:31 +00:00
Evan Cheng
4f85cd7704 Add a couple of target hooks for predication. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37306 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-23 07:19:12 +00:00
Chris Lattner
570204cbc2 make these accessors private. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37302 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-23 05:46:04 +00:00
Dale Johannesen
e6e435498c name change requested by review of previous patch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37289 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-22 18:31:04 +00:00
Dale Johannesen
81da02b553 Make tail merging the default, except on powerPC. There was no prior art 
for a target-dependent default with a command-line override; this way
should be generally usable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37285 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-22 17:14:46 +00:00