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5461 Commits

Author SHA1 Message Date
Owen Anderson 5e72db3f7f Add FastDSE, a new algorithm for doing dead store elimination. This algorithm is not as accurate 
as the current DSE, but it only a linear scan over each block, rather than quadratic.  Eventually
(once it has been improved somewhat), this will replace the current DSE.

NOTE: This has not yet been extensively tested.
llvm-svn: 38517
 2007-07-11 00:46:18 +00:00
Evan Cheng ff025e4fc9 Add OptionalDefOperand. Remove clobbersPred. Also add DefinesPredicate to be used by if-converter. 
llvm-svn: 38499
 2007-07-10 18:06:29 +00:00
Owen Anderson 9c88457abe Add support for finding the dependencies of call and invoke instructions. 
llvm-svn: 38497
 2007-07-10 17:59:22 +00:00
Owen Anderson 47352db672 Fix a bunch of things from Chris' feedback 
llvm-svn: 38493
 2007-07-10 17:08:11 +00:00
Evan Cheng ff6f279adf When a node value is only used by a CopyToReg, use the user's dest. This should not be restricted to nodes that produce only a single value. 
llvm-svn: 38485
 2007-07-10 07:08:32 +00:00
Evan Cheng 32aad49b24 Move DenseMapKeyInfo<SDOperand> from LegalizeDAG.cpp to SelectionDAGNodes.h 
llvm-svn: 38484
 2007-07-10 06:59:55 +00:00
Owen Anderson 7ff09810a8 Evidently my earlier fix did not go far enough. When resizing a zero-sized 
BitVector, make sure to set or clear ALL of the bits.

llvm-svn: 38481
 2007-07-10 02:01:16 +00:00
Owen Anderson c3bd1db42d When resizing a BitVector with size 0, be sure to clear the low word before using it. 
llvm-svn: 38476
 2007-07-09 23:39:39 +00:00
Devang Patel e8ec7661ea Expose struct size threhold to allow users to tweak their own setting. 
llvm-svn: 38472
 2007-07-09 21:19:23 +00:00
Owen Anderson 3364abbb36 Make the assignment operator for SmallPtrSet return a reference, and fix a long-standing bug in the copy 
ctor while I'm at it.

Thanks to Chris Lattner for help with this patch.

llvm-svn: 38470
 2007-07-09 20:59:01 +00:00
Devang Patel 94d0fbe1a6 Fix memory leak. 
llvm-svn: 38469
 2007-07-09 20:52:39 +00:00
Chris Lattner a11b2c74f2 work around an aparent gcc name resolution bug by 
detemplatizing this.

llvm-svn: 38461
 2007-07-09 17:11:53 +00:00
Chris Lattner 85049a470e implement operator= for smallptrset 
llvm-svn: 38460
 2007-07-09 16:54:03 +00:00
Dan Gohman 0a76e7f678 Move the APInt form of SCEVUnknown::getIntegerSCEV to SCEVConstant::get, and 
use SCEVConstant::get instead of SCEVUnknown::get when constructing a SCEV
for a ConstantInt.

llvm-svn: 38457
 2007-07-09 15:25:17 +00:00
Dan Gohman 8e0b6099b9 Fix a typo in a comment. 
llvm-svn: 38456
 2007-07-09 15:15:24 +00:00
Gabor Greif 949ac3a930 missed this one 
llvm-svn: 38454
 2007-07-09 12:20:30 +00:00
Gabor Greif ef3d8362a3 fix typos 
llvm-svn: 38453
 2007-07-09 12:00:59 +00:00
Owen Anderson c0daf5fe53 A first stab at memory dependence analysis. This is an interface on top of 
alias analysis, adding caching and lazy computation of queries.  This will
be used in planned improvements to memory access optimizations.

llvm-svn: 37958
 2007-07-06 23:14:35 +00:00
Owen Anderson 81f07478b4 Add some accessors to improve consistency. 
llvm-svn: 37957
 2007-07-06 23:13:31 +00:00
Devang Patel d7767cc2a7 Add SplitEdge and SplitBlock utility routines. 
llvm-svn: 37952
 2007-07-06 21:39:20 +00:00
Gabor Greif 24027b584f finishing touches of bytecode -> bitcode changes. also unbreak Windows 
llvm-svn: 37950
 2007-07-06 20:28:40 +00:00
Dan Gohman 71ed4aaa31 Remove redundant declarations. 
llvm-svn: 37946
 2007-07-06 13:59:28 +00:00
Gabor Greif 3d3fc3296e eliminate residual cruft related to recognizing bytecode 
files.
bitcode files are the only LLVM format left.

llvm-svn: 37945
 2007-07-06 13:38:17 +00:00
Dan Gohman fd404813e8 Fix a comment so that the element numbering match the actual element 
operand numbering.

llvm-svn: 37944
 2007-07-06 13:27:33 +00:00
Rafael Espindola b567e3ffb0 Add the byval attribute 
llvm-svn: 37940
 2007-07-06 10:57:03 +00:00
Dan Gohman 929624f461 Add explicit keywords. 
llvm-svn: 37925
 2007-07-05 20:40:15 +00:00
Dan Gohman 83b095df36 Make MachineFunctionPass::runOnFunction non-virtual. Subclasses override 
the virtual function runOnMachineFunction instead. And add access specifiers.

llvm-svn: 37924
 2007-07-05 20:39:35 +00:00
Gabor Greif e16561cd5d Here is the bulk of the sanitizing. 
Almost all occurrences of "bytecode" in the sources have been eliminated.

llvm-svn: 37913
 2007-07-05 17:07:56 +00:00
Duncan Sands 4836e3a6f8 Make sure only one copy of a filter is placed in the 
exception handling table if we encounter it multiple
times.  Filters could be folded harder than this, but
that would mean a lot more work for not much gain.

llvm-svn: 37908
 2007-07-05 15:15:01 +00:00
Duncan Sands fe80638417 Extend eh.selector to support both catches and filters. 
Drop the eh.filter intrinsic.

llvm-svn: 37875
 2007-07-04 20:52:51 +00:00
Devang Patel 24f9e2cf98 Remove unused method - getIDomBlock(). 
llvm-svn: 37865
 2007-07-04 01:11:19 +00:00
Devang Patel 67c27ceac7 Fix typo in assertion check. 
llvm-svn: 37864
 2007-07-04 01:05:22 +00:00
Dan Gohman 32c3c19bed Remove declarations for code no longer in the tree, to avoid confusion. 
llvm-svn: 37840
 2007-07-02 15:06:26 +00:00
Dan Gohman 1eb8ed47f5 Add explicit keywords. 
llvm-svn: 37839
 2007-07-02 14:53:37 +00:00
Devang Patel 88197332e7 Add loop info verification mechanism. 
llvm-svn: 37822
 2007-06-29 23:13:42 +00:00
Dan Gohman 2e5e277cb3 Add an explicit keyword. Thanks Chris! 
llvm-svn: 37819
 2007-06-29 22:16:25 +00:00
John Criswell 2660cef6d7 Convert .cvsignore files 
llvm-svn: 37801
 2007-06-29 16:35:07 +00:00
David Greene 451d1a6ecd Fix misue of iterator pointing to erased object. Uncovered by 
_GLIBCXX_DEBUG.

llvm-svn: 37793
 2007-06-29 02:45:24 +00:00
Dan Gohman 7867793aff 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.

llvm-svn: 37781
 2007-06-28 23:29:44 +00:00
Dan Gohman 5f1a2052cd 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.

llvm-svn: 37779
 2007-06-28 20:27:24 +00:00
Devang Patel 4857576f75 Remove unnecessary comments. 
llvm-svn: 37774
 2007-06-28 02:11:54 +00:00
Devang Patel 7d4520f8ad Handle the case when block dominates itself. 
llvm-svn: 37773
 2007-06-28 02:07:08 +00:00
Devang Patel c445982764 Remove ETForest. 
llvm-svn: 37765
 2007-06-27 20:53:52 +00:00
Dan Gohman 3b62d7265d Rename ("shrinkify") MVT::isExtendedValueType to MVT::isExtendedVT. 
llvm-svn: 37758
 2007-06-27 16:08:04 +00:00
Dan Gohman 5179f91ef0 Document the encoding of MVT::ValueType. 
llvm-svn: 37757
 2007-06-27 15:28:26 +00:00
Dan Gohman cab6dd8ef2 Allow DOUT to be used outside of the llvm namespace. 
llvm-svn: 37753
 2007-06-27 14:09:38 +00:00
Evan Cheng 2d345badea Add comment. 
llvm-svn: 37741
 2007-06-26 21:19:07 +00:00
Evan Cheng d8417d9199 Properly handle kills of a physical register which has sub-registers that are read by later instructions. 
llvm-svn: 37739
 2007-06-26 21:03:35 +00:00
Evan Cheng 2e887c0b84 Add immediate sub-registers. 
llvm-svn: 37738
 2007-06-26 20:59:16 +00:00
Dan Gohman 0dccdef768 Replace ?: with if statements, for clarity. 
llvm-svn: 37735
 2007-06-26 16:19:08 +00:00