David Greene
c176772093
Fix reference to iterator invalidated by an erase operation. Uncovered
...
by _GLIBCXX_DEBUG.
llvm-svn: 37796
2007-06-29 02:53:16 +00:00
Devang Patel
bfb1c7192e
Move code to update dominator information after basic block is split
...
from LoopSimplify.cpp to Dominator.cpp
llvm-svn: 37689
2007-06-21 17:23:45 +00:00
Devang Patel
bc3887310b
Add and use DominatorTreeBase::findNearestCommonDominator().
...
llvm-svn: 37545
2007-06-11 23:31:22 +00:00
Devang Patel
336e38d425
Simplify.
...
llvm-svn: 37542
2007-06-11 21:45:31 +00:00
Devang Patel
8fba00d86d
simplify
...
llvm-svn: 37541
2007-06-11 21:25:31 +00:00
Devang Patel
35df53ab56
Simplify. Dominator Tree is required so always available.
...
llvm-svn: 37540
2007-06-11 21:18:00 +00:00
Devang Patel
cfb3a761ae
Update LoopSimplify to require and preserve DominatorTree only.
...
Now LoopSimplify does not require nor preserve ETForest.
llvm-svn: 37512
2007-06-08 01:50:32 +00:00
Devang Patel
b5554f450a
Do not preserve ETForest.
...
llvm-svn: 37506
2007-06-08 00:02:08 +00:00
Devang Patel
3daf3625ab
Do not use ETForest as well as DomiantorTree. DominatorTree is sufficient.
...
llvm-svn: 37501
2007-06-07 22:17:16 +00:00
Devang Patel
a466c96f77
Use DominatorTree instead of ETForest.
...
This allows faster immediate domiantor walk.
llvm-svn: 37500
2007-06-07 21:57:03 +00:00
Devang Patel
babcd06827
Maintain ETNode as part of DomTreeNode.
...
This adds redundancy for now.
llvm-svn: 37492
2007-06-07 17:47:21 +00:00
Devang Patel
74785c1f3c
s/DominatorTree::createNewNode/DominatorTree::addNewBlock/g
...
llvm-svn: 37415
2007-06-04 16:43:25 +00:00
Devang Patel
26d8a86df7
Add basic block level interface to change immediate dominator
...
and create new node.
llvm-svn: 37414
2007-06-04 16:22:33 +00:00
Devang Patel
2ef6caf14f
s/llvm::DominatorTreeBase::DomTreeNode/llvm::DomTreeNode/g
...
llvm-svn: 37407
2007-06-04 00:32:22 +00:00
Devang Patel
d58b82f83a
s/DominatorTreeBase::Node/DominatorTreeBase:DomTreeNode/g
...
llvm-svn: 37403
2007-06-03 06:26:14 +00:00
Dan Gohman
2c5d31ee81
Minor comment cleanups.
...
llvm-svn: 37321
2007-05-24 14:36:04 +00:00
Dan Gohman
167379e73a
Fix typos.
...
llvm-svn: 36994
2007-05-11 21:10:54 +00:00
Nick Lewycky
c2306ff5b4
Fix typo in comment.
...
llvm-svn: 36873
2007-05-06 13:37:16 +00:00
Devang Patel
cd45427a87
Drop 'const'
...
llvm-svn: 36662
2007-05-03 01:11:54 +00:00
Devang Patel
8ee9065162
Use 'static const char' instead of 'static const int'.
...
Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.
llvm-svn: 36652
2007-05-02 21:39:20 +00:00
Devang Patel
38a66bc82e
Do not use typeinfo to identify pass in pass manager.
...
llvm-svn: 36632
2007-05-01 21:15:47 +00:00
Devang Patel
e5765bd115
Mem2Reg does not need TargetData.
...
llvm-svn: 36444
2007-04-25 18:32:35 +00:00
Devang Patel
b6ef7bc5d9
Remove unused function argument.
...
llvm-svn: 36441
2007-04-25 17:15:20 +00:00
Owen Anderson
9813f7fa80
Fix a comment.
...
llvm-svn: 36299
2007-04-21 07:12:44 +00:00
Jeff Cohen
2afa206eb3
Comment out usage of write() for now.
...
llvm-svn: 36287
2007-04-20 22:40:10 +00:00
Devang Patel
3c304ecdc9
Avoid recursion.
...
llvm-svn: 36272
2007-04-20 20:04:37 +00:00
Owen Anderson
41b527b75f
Move more passes to using ETForest instead of DominatorTree.
...
llvm-svn: 36271
2007-04-20 06:27:13 +00:00
Evan Cheng
91e0637ed3
Revert Owen's last check-in. This is breaking Mac OS X / PPC llvm-gcc bootstrap.
...
llvm-svn: 36258
2007-04-18 22:39:00 +00:00
Owen Anderson
d8bb3aca7b
Use new ETForest accessor.
...
llvm-svn: 36248
2007-04-18 04:46:35 +00:00
Owen Anderson
909895b564
Use ETForest instead of DominatorTree.
...
llvm-svn: 36247
2007-04-18 04:39:32 +00:00
Chris Lattner
8e28e7654d
remove use of BasicBlock::getNext
...
llvm-svn: 36205
2007-04-17 18:09:47 +00:00
Chris Lattner
7b6a5d7956
remove use of Instruction::getNext
...
llvm-svn: 36199
2007-04-17 17:47:54 +00:00
Anton Korobeynikov
f3e62a428a
Removed tabs everywhere except autogenerated & external files. Add make
...
target for tabs checking.
llvm-svn: 36146
2007-04-16 18:10:23 +00:00
Chris Lattner
601aa5b489
Fix PR1335 and Transforms/Inline/2007-04-15-InlineEH.ll
...
llvm-svn: 36090
2007-04-15 21:38:06 +00:00
Owen Anderson
ea857029ea
Remove ImmediateDominator analysis. The same information can be obtained from DomTree. A lot of code for
...
constructing ImmediateDominator is now folded into DomTree construction.
This is part of the ongoing work for PR217.
llvm-svn: 36063
2007-04-15 08:47:27 +00:00
Chris Lattner
7928216e38
avoid copying sets and vectors around.
...
llvm-svn: 36017
2007-04-14 22:10:17 +00:00
Lauro Ramos Venancio
a76c2806de
Implement the "thread_local" keyword.
...
llvm-svn: 35950
2007-04-12 18:32:50 +00:00
Owen Anderson
5d0148ae7c
Re-constify things that don't break the build. Last patch in this
...
series, I promise.
llvm-svn: 35848
2007-04-09 23:38:18 +00:00
Owen Anderson
94e3511ef6
Unconst-ify stuff that broke the build.
...
llvm-svn: 35843
2007-04-09 23:08:26 +00:00
Owen Anderson
3d132f812a
Const-ify some parameters, and some cosmetic cleanups. No functionality
...
change.
llvm-svn: 35842
2007-04-09 22:54:50 +00:00
Owen Anderson
148566d2e3
Tabs -> Spaces
...
llvm-svn: 35841
2007-04-09 22:31:43 +00:00
Owen Anderson
6f5fe179cc
Improve some _slow_ behavior introduced in my patches the last few days.
...
llvm-svn: 35839
2007-04-09 22:25:09 +00:00
Owen Anderson
f9a432a613
Cleanup some from my DomSet-removal changes. Add a new
...
isReachableFromEntry
test to ETForest to factor a common test out of code.
llvm-svn: 35786
2007-04-09 00:52:49 +00:00
Nick Lewycky
71592d1ef2
Remove DominatorSet usage from LoopSimplify. Patch from Owen Anderson.
...
llvm-svn: 35757
2007-04-08 01:04:30 +00:00
Owen Anderson
7cf9d12f2e
Add DomSet back, and revert the changes to LoopSimplify. Apparently the
...
ETForest updating mechanisms don't work as I thought they did. These changes
will be reapplied once the issue is worked out.
llvm-svn: 35741
2007-04-07 18:23:27 +00:00
Owen Anderson
177b1a6aea
Completely purge DomSet from LoopSimplify. This is part of the
...
continuing work on PR1171.
llvm-svn: 35730
2007-04-07 06:56:47 +00:00
Owen Anderson
e2add101a4
BreakCriticalEdges does still preserve DominatorTree.
...
llvm-svn: 35729
2007-04-07 05:57:09 +00:00
Owen Anderson
eb184ee17b
Expunge DomSet from BreakCriticalEdges. This is part of the continuing
...
work for PR 1171.
llvm-svn: 35728
2007-04-07 05:49:29 +00:00
Owen Anderson
41bf50021d
Expunge DomSet from CodeExtractor. This is part of the continuing work
...
on PR1171.
llvm-svn: 35726
2007-04-07 05:31:27 +00:00
Owen Anderson
54c7efee4d
Expunge a bunch of uses of DomSet from LoopSimplify. Many more remain.
...
This is the beginning of work for PR1171.
llvm-svn: 35720
2007-04-07 04:37:14 +00:00
Chris Lattner
d59b6b3d90
reduce use of std::set
...
llvm-svn: 35576
2007-04-02 01:44:59 +00:00
Devang Patel
c2708c8ccb
Reduce malloc/free traffic.
...
llvm-svn: 35370
2007-03-26 23:19:29 +00:00
Dan Gohman
d0a0ea9916
Change uses of Function::front to Function::getEntryBlock for readability.
...
llvm-svn: 35265
2007-03-22 16:38:57 +00:00
Devang Patel
18146cf2a2
LoopSimplify::FindPHIToPartitionLoops()
...
Use ETForest instead of DominatorSet.
llvm-svn: 35221
2007-03-20 20:18:12 +00:00
Jeff Cohen
91930bc4d4
Unbreak VC++ build. Do not use identifiers starting with _ as they are reserved and
...
can collide with system defined names. Windows defines _BB, for example.
llvm-svn: 35066
2007-03-12 17:56:27 +00:00
Anton Korobeynikov
0c2d312725
Use range tests in LowerSwitch, where possible
...
llvm-svn: 35057
2007-03-10 16:46:28 +00:00
Devang Patel
20b8163ad3
Remove dead comments.
...
llvm-svn: 35053
2007-03-09 23:41:03 +00:00
Devang Patel
8a26f4caa0
Avoid recursion. Use iterative algorithm for RenamePass().
...
llvm-svn: 35052
2007-03-09 23:39:14 +00:00
Reid Spencer
884f32fd12
Make sure debug code is not evaluated in non-debug case.
...
llvm-svn: 34856
2007-03-02 23:15:21 +00:00
Reid Spencer
69858df100
1. Sort switch cases using APInt safe comparison.
...
2. Make sure debug output of APInt values is safe for all bit widths.
llvm-svn: 34855
2007-03-02 23:05:28 +00:00
Reid Spencer
bf4956bcc4
Use APInt safe isOne() method on ConstantInt instead of getZExtValue()==1
...
llvm-svn: 34854
2007-03-02 23:03:17 +00:00
Reid Spencer
0f63188d6a
Make sorting of ConstantInt be APInt clean through use of ult function.
...
llvm-svn: 34853
2007-03-02 23:01:14 +00:00
Chris Lattner
4fbb8286bf
switch the inliner from being recursive to being iterative.
...
llvm-svn: 34832
2007-03-02 03:11:20 +00:00
Chris Lattner
6334a918d8
fix an obscure and tricky bug the inliner can hit sometimes.
...
llvm-svn: 34531
2007-02-23 19:54:30 +00:00
Jim Laskey
8ddfb7141b
Revert changes for a simplier solution.
...
llvm-svn: 34495
2007-02-22 16:21:18 +00:00
Jim Laskey
2bbd4312c0
Itanium ABI exception handing support.
...
llvm-svn: 34480
2007-02-21 22:49:50 +00:00
Dan Gohman
e24135a647
Fix typos in comments.
...
llvm-svn: 34456
2007-02-20 20:52:03 +00:00
Chris Lattner
b83d08ddc2
eliminate use of deprecated apis
...
llvm-svn: 34417
2007-02-19 07:34:47 +00:00
Reid Spencer
55e4e98a2a
For PR1195:
...
Rename PackedType -> VectorType, ConstantPacked -> ConstantVector, and
PackedTyID -> VectorTyID. No functional changes.
llvm-svn: 34293
2007-02-15 02:26:10 +00:00
Chris Lattner
ce2cc6e404
Eliminate use of ctors that take vectors.
...
llvm-svn: 34219
2007-02-13 02:10:56 +00:00
Chris Lattner
b73ffa20af
stop using methods that take vectors.
...
llvm-svn: 34205
2007-02-12 22:56:41 +00:00
Chris Lattner
bbd6f81f3d
simplify code by using Value::takeName
...
llvm-svn: 34177
2007-02-11 01:37:51 +00:00
Chris Lattner
474d7b219d
redesign the primary datastructure used by mem2reg to eliminate an
...
std::map of std::vector's (ouch!). This speeds up mem2reg by 10% on 176.gcc.
llvm-svn: 33974
2007-02-07 01:15:04 +00:00
Chris Lattner
5fee493a8c
With the last change, we no longer need both directions of mapping from
...
BBNumbers. Instead of using a bi-directional mapping, just use a single
densemap. This speeds up mem2reg on 176.gcc by 8%, from 1.3489 to
1.2485s.
llvm-svn: 33940
2007-02-05 23:37:20 +00:00
Reid Spencer
8749d297f5
Apply the VISIBILITY_HIDDEN field to the remaining anonymous classes in
...
the Transforms library. This reduces debug library size by 132 KB, debug
binary size by 376 KB, and reduces link time for llvm tools slightly.
llvm-svn: 33939
2007-02-05 23:32:05 +00:00
Chris Lattner
7703e811eb
Simplify use of DFBlocks, this makes no noticable performance difference,
...
but paves the way to eliminate BBNumbers.
llvm-svn: 33938
2007-02-05 23:31:26 +00:00
Chris Lattner
c7487c93da
Switch InsertedPHINodes back to SmallPtrSet now that the SmallPtrSet::erase
...
bug is fixed.
llvm-svn: 33932
2007-02-05 23:11:37 +00:00
Chris Lattner
0ae77ee391
switch a SmallPtrSet back to an std::set for now, this caused problems.
...
llvm-svn: 33930
2007-02-05 22:28:52 +00:00
Chris Lattner
9a99e6ee24
switch an std::set over to a SmallPtrSet, speeding up mem2reg 6% on 176.gcc.
...
llvm-svn: 33929
2007-02-05 22:15:21 +00:00
Chris Lattner
19e7a5695d
switch an std::set over to SmallPtrSet, speeding up mem2reg 3.4% on 176.gcc.
...
llvm-svn: 33928
2007-02-05 22:13:11 +00:00
Chris Lattner
5d5bf2ed87
eliminate some malloc traffic, this speeds up mem2reg by 3.4%.
...
llvm-svn: 33927
2007-02-05 21:58:48 +00:00
Reid Spencer
6af21b3029
For PR411:
...
This patch replaces the SymbolTable class with ValueSymbolTable which does
not support types planes. This means that all symbol names in LLVM must now
be unique. The patch addresses the necessary changes to deal with this and
removes code no longer needed as a result. This completes the bulk of the
changes for this PR. Some cleanup patches will follow.
llvm-svn: 33918
2007-02-05 20:47:22 +00:00
Reid Spencer
21f40213a8
For PR1177:
...
Revert last patch which caused iteration invalidation.
llvm-svn: 33901
2007-02-05 05:23:32 +00:00
Owen Anderson
0fbb2d629f
Use DenseMap for pointer->pointer maps.
...
llvm-svn: 33897
2007-02-05 02:39:47 +00:00
Reid Spencer
310b497b59
For PR1163:
...
Make the Module's dependent library use a std::vector instead of SetVector
adjust #includes in .cpp files because SetVector.h is no longer included.
llvm-svn: 33855
2007-02-04 00:40:42 +00:00
Chris Lattner
71fe09f397
Switch inliner over to use DenseMap instead of std::map for ValueMap. This
...
speeds up the inliner 16%.
llvm-svn: 33801
2007-02-03 00:08:31 +00:00
Chris Lattner
618f24b0ed
Fix bugs in the inliner having to do with single-entry phi nodes and valuemap
...
updating. These were exposed by Devang's recent passmgr changes (with
non-default passorderings) because now the inliner can be interleved with
the LCSSA pass.
llvm-svn: 33760
2007-02-01 18:48:38 +00:00
Chris Lattner
237fa61eb7
eliminate temporary vectors
...
llvm-svn: 33713
2007-01-31 20:07:32 +00:00
Chris Lattner
7db51ec161
Adjust #includes to match movement of constant folding code from transformutils to libanalysis.
...
llvm-svn: 33680
2007-01-30 23:46:24 +00:00
Chris Lattner
1765c2eed8
move a bunch of constant folding code f rom Transforms/Utils/Local.cpp into
...
libanalysis/ConstantFolding.cpp.
llvm-svn: 33679
2007-01-30 23:45:45 +00:00
Chris Lattner
4c01d0055a
remove now-dead code.
...
llvm-svn: 33678
2007-01-30 23:29:47 +00:00
Chris Lattner
23628987e2
The inliner/cloner can now optionally take TargetData info, which can be
...
used by constant folding.
llvm-svn: 33676
2007-01-30 23:22:39 +00:00
Chris Lattner
659afcca15
Change constant folding APIs to take an optional TargetData, and change
...
ConstantFoldInstOperands/ConstantFoldCall to take a pointer to an array
of operands + size, instead of an std::vector.
In some cases, switch to using a SmallVector instead of a vector.
This allows us to get rid of some special case gross code that was there
to avoid the cost of constructing a vector.
llvm-svn: 33670
2007-01-30 23:13:49 +00:00
Reid Spencer
19af04a142
For PR1136: Rename GlobalVariable::isExternal as isDeclaration to avoid
...
confusion with external linkage types.
llvm-svn: 33663
2007-01-30 20:08:39 +00:00
Reid Spencer
cec82ab067
For PR761:
...
The Module::setEndianness and Module::setPointerSize methods have been
removed. Instead you can get/set the DataLayout. Adjust thise accordingly.
llvm-svn: 33530
2007-01-26 08:11:39 +00:00
Devang Patel
a9eae6951d
Inherit BasicBlockPass directly from Pass.
...
llvm-svn: 33511
2007-01-25 23:23:25 +00:00
Reid Spencer
14b42c0040
For PR1043:
...
This is the final patch for this PR. It implements some minor cleanup
in the use of IntegerType, to wit:
1. Type::getIntegerTypeMask -> IntegerType::getBitMask
2. Type::Int*Ty changed to IntegerType* from Type*
3. ConstantInt::getType() returns IntegerType* now, not Type*
This also fixes PR1120.
Patch by Sheng Zhou.
llvm-svn: 33370
2007-01-19 21:13:56 +00:00
Chris Lattner
c5e1611848
rename Type::isIntegral to Type::isInteger, eliminating the old Type::isInteger.
...
rename Type::getIntegralTypeMask to Type::getIntegerTypeMask.
This makes naming much more consistent. For example, there are now no longer any
instances of IntegerType that are not considered isInteger! :)
llvm-svn: 33225
2007-01-15 02:27:26 +00:00
Chris Lattner
8fbcb083aa
Eliminate calls to isInteger, generalizing code and tightening checks as needed.
...
llvm-svn: 33218
2007-01-15 01:55:30 +00:00
Chris Lattner
e7c5d04b53
Fix Analysis/Dominators/2006-10-02-BreakCritEdges.ll
...
llvm-svn: 33210
2007-01-15 00:15:09 +00:00
Chris Lattner
9801f36d97
Fix PR1110 and Analysis/Dominators/2007-01-14-BreakCritEdges.ll by being
...
more careful about unreachable code when updating dominator info.
llvm-svn: 33204
2007-01-14 18:33:35 +00:00
Reid Spencer
3d986f6487
Implement review feedback for the ConstantBool->ConstantInt merge. Chris
...
recommended that getBoolValue be replaced with getZExtValue and that
get(bool) be replaced by get(const Type*, uint64_t). This implements
those changes.
llvm-svn: 33110
2007-01-12 04:24:46 +00:00
Reid Spencer
f3265181e2
Rename BoolTy as Int1Ty. Patch by Sheng Zhou.
...
llvm-svn: 33076
2007-01-11 18:21:29 +00:00
Zhou Sheng
23d24526b2
For PR1043:
...
Merge ConstantIntegral and ConstantBool into ConstantInt.
Remove ConstantIntegral and ConstantBool from LLVM.
llvm-svn: 33073
2007-01-11 12:24:14 +00:00
Chris Lattner
aa5051ae7f
Change the interface to Module::getOrInsertFunction to be easier to use,to resolve PR1088, and to help PR411.
...
This simplifies many clients also
llvm-svn: 32989
2007-01-07 08:12:01 +00:00
Chris Lattner
a2f5c06174
prepare for adjustment to getOrInsertFunction method
...
llvm-svn: 32985
2007-01-07 07:54:34 +00:00
Reid Spencer
cdaf88ff9d
For PR411:
...
Take an incremental step towards type plane elimination. This change
separates types from values in the symbol tables by finally making use
of the TypeSymbolTable class. This yields more natural interfaces for
dealing with types and unclutters the SymbolTable class.
llvm-svn: 32956
2007-01-06 07:24:44 +00:00
Reid Spencer
0fb7fa82d4
For PR950:
...
This patch replaces signed integer types with signless ones:
1. [US]Byte -> Int8
2. [U]Short -> Int16
3. [U]Int -> Int32
4. [U]Long -> Int64.
5. Removal of isSigned, isUnsigned, getSignedVersion, getUnsignedVersion
and other methods related to signedness. In a few places this warranted
identifying the signedness information from other sources.
llvm-svn: 32785
2006-12-31 05:48:39 +00:00
Reid Spencer
4428c3483b
For PR950:
...
This patch removes the SetCC instructions and replaces them with the ICmp
and FCmp instructions. The SetCondInst instruction has been removed and
been replaced with ICmpInst and FCmpInst.
llvm-svn: 32751
2006-12-23 06:05:41 +00:00
Chris Lattner
4d19c9634d
switch more statistics over to STATISTIC, eliminating static ctors. Also,
...
delete some dead ones.
llvm-svn: 32694
2006-12-19 22:17:40 +00:00
Bill Wendling
7f6a73eb5c
Added an automatic cast to "std::ostream*" etc. from OStream. We then can
...
rework the hacks that had us passing OStream in. We pass in std::ostream*
instead, check for null, and then dispatch to the correct print() method.
llvm-svn: 32636
2006-12-17 05:15:13 +00:00
Reid Spencer
50702907eb
Replace CastInst::createInferredCast calls with more accurate cast
...
creation calls.
llvm-svn: 32521
2006-12-13 00:50:17 +00:00
Reid Spencer
3d1b0dfba6
Fix the casting for the computation of the Malloc size.
...
llvm-svn: 32477
2006-12-12 09:17:08 +00:00
Reid Spencer
562b83c7df
Change inferred getCast into specific getCast. Passes all tests.
...
llvm-svn: 32469
2006-12-12 05:05:00 +00:00
Bill Wendling
a3246c4272
Changed llvm_ostream et all to OStream. llvm_cerr, llvm_cout, llvm_null, are
...
now cerr, cout, and NullStream resp.
llvm-svn: 32298
2006-12-07 01:30:32 +00:00
Chris Lattner
a531ce882e
Detemplatize the Statistic class. The only type it is instantiated with
...
is 'unsigned'.
llvm-svn: 32279
2006-12-06 17:46:33 +00:00
Reid Spencer
992d9788b3
For PR950:
...
The long awaited CAST patch. This introduces 12 new instructions into LLVM
to replace the cast instruction. Corresponding changes throughout LLVM are
provided. This passes llvm-test, llvm/test, and SPEC CPUINT2000 with the
exception of 175.vpr which fails only on a slight floating point output
difference.
llvm-svn: 31931
2006-11-27 01:05:10 +00:00
Bill Wendling
999f49061f
Remove #include <iostream> and use llvm_* streams instead.
...
llvm-svn: 31925
2006-11-26 10:17:54 +00:00
Chris Lattner
cdb67482da
Do not convert massive blocks on phi nodes into select statements. Instead
...
only do these transformations if there are a small number of phi's.
This speeds up Ptrdist/ks from 2.35s to 2.19s on my mac pro.
llvm-svn: 31853
2006-11-18 19:19:36 +00:00
Jim Laskey
28fec74f1b
Remove redundant <cmath>.
...
llvm-svn: 31561
2006-11-08 19:16:44 +00:00
Reid Spencer
da1f5b882a
For PR950:
...
This patch converts the old SHR instruction into two instructions,
AShr (Arithmetic) and LShr (Logical). The Shr instructions now are not
dependent on the sign of their operands.
llvm-svn: 31542
2006-11-08 06:47:33 +00:00
Jeff Cohen
e1003da1a2
Unbreak VC++ build.
...
llvm-svn: 31464
2006-11-05 19:31:28 +00:00
Reid Spencer
4bafa71dc1
For PR786:
...
Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting
fall out by removing unused variables. Remaining warnings have to do with
unused functions (I didn't want to delete code without review) and unused
variables in generated code. Maintainers should clean up the remaining
issues when they see them. All changes pass DejaGnu tests and Olden.
llvm-svn: 31380
2006-11-02 20:25:50 +00:00
Chris Lattner
3b7a9fa472
generalize the fix for PR977 to also fix
...
Transforms/LCSSA/2006-10-31-UnreachableBlock-2.ll
llvm-svn: 31317
2006-10-31 18:56:48 +00:00
Chris Lattner
79daf6ae80
Fix PR977 and Transforms/LCSSA/2006-10-31-UnreachableBlock.ll
...
llvm-svn: 31315
2006-10-31 17:52:18 +00:00
Chris Lattner
cc8731fef4
Fix SimplifyCFG/2006-10-29-InvokeCrash.ll, a crash compiling QT.
...
llvm-svn: 31284
2006-10-29 21:21:20 +00:00
Chris Lattner
65f872288d
add option to isCriticalEdge
...
llvm-svn: 31258
2006-10-28 06:58:17 +00:00
Chris Lattner
85bc826ca6
Expose a smarter way to break critical edges.
...
llvm-svn: 31256
2006-10-28 06:44:56 +00:00
Reid Spencer
d414793dbc
For PR950:
...
This patch implements the first increment for the Signless Types feature.
All changes pertain to removing the ConstantSInt and ConstantUInt classes
in favor of just using ConstantInt.
llvm-svn: 31063
2006-10-20 07:07:24 +00:00
Chris Lattner
d9aa90ded4
Fix SimplifyCFG/2006-10-19-UncondDiv.ll by disabling a bad xform.
...
llvm-svn: 31061
2006-10-20 00:42:07 +00:00
Chris Lattner
c8225bc92a
This case isn't implemented yet. It seems unlikely to be needed, but if it
...
ever is, we want to get an assert instead of silent bad codegen.
llvm-svn: 30716
2006-10-04 04:58:58 +00:00
Chris Lattner
bfbe137f4c
Fix PR932 and Analysis/Dominators/2006-10-02-BreakCritEdges.ll:
...
The critical edge block dominates the dest block if the destblock dominates
all edges other than the one incoming from the critical edge.
llvm-svn: 30696
2006-10-03 07:02:02 +00:00
Chris Lattner
d9c79b9349
simplify code
...
llvm-svn: 30656
2006-09-28 22:58:25 +00:00
Chris Lattner
c0f674b9fd
Be far more careful when splitting a loop header, either to form a preheader
...
or when splitting loops with a common header into multiple loops. In particular
the old code would always insert the preheader before the old loop header. This
is disasterous in cases where the loop hasn't been rotated. For example, it can
produce code like:
.. outside the loop...
jmp LBB1_2 #bb13.outer
LBB1_1: #bb1
movsd 8(%esp,%esi,8), %xmm1
mulsd (%edi), %xmm1
addsd %xmm0, %xmm1
addl $24, %edi
incl %esi
jmp LBB1_3 #bb13
LBB1_2: #bb13.outer
leal (%edx,%eax,8), %edi
pxor %xmm1, %xmm1
xorl %esi, %esi
LBB1_3: #bb13
movapd %xmm1, %xmm0
cmpl $4, %esi
jl LBB1_1 #bb1
Note that the loop body is actually LBB1_1 + LBB1_3, which means that the
loop now contains an uncond branch WITHIN it to jump around the inserted
loop header (LBB1_2). Doh.
This patch changes the preheader insertion code to insert it in the right
spot, producing this code:
... outside the loop, fall into the header ...
LBB1_1: #bb13.outer
leal (%edx,%eax,8), %esi
pxor %xmm0, %xmm0
xorl %edi, %edi
jmp LBB1_3 #bb13
LBB1_2: #bb1
movsd 8(%esp,%edi,8), %xmm0
mulsd (%esi), %xmm0
addsd %xmm1, %xmm0
addl $24, %esi
incl %edi
LBB1_3: #bb13
movapd %xmm0, %xmm1
cmpl $4, %edi
jl LBB1_2 #bb1
Totally crazy, no branch in the loop! :)
llvm-svn: 30587
2006-09-23 08:19:21 +00:00
Chris Lattner
56c1c10ca1
Teach UpdateDomInfoForRevectoredPreds to handle revectored preds that are not
...
reachable, making it general purpose enough for use by InsertPreheaderForLoop.
Eliminate custom dominfo updating code in InsertPreheaderForLoop, using
UpdateDomInfoForRevectoredPreds instead.
llvm-svn: 30586
2006-09-23 07:40:52 +00:00
Chris Lattner
60207ce1f7
Second half of the fix for Transforms/Inline/inline_cleanup.ll
...
This folds unconditional branches that are often produced by code
specialization.
llvm-svn: 30307
2006-09-13 21:27:00 +00:00
Chris Lattner
e55d70cedc
Implement the first half of Transforms/Inline/inline_cleanup.ll
...
llvm-svn: 30303
2006-09-13 19:23:57 +00:00
Chris Lattner
f17002a907
Fix Duraid's changes to work when TLI is null. This fixes the failing
...
lowerinvoke regtests.
llvm-svn: 30115
2006-09-05 17:48:07 +00:00
Duraid Madina
51396ffd3e
add setJumpBufSize() and setJumpBufAlignment() to target-lowering.
...
Call these from your backend to enjoy setjmp/longjmp goodness, see
lib/Target/IA64/IA64ISelLowering.cpp for an example
llvm-svn: 30095
2006-09-04 06:21:35 +00:00
Chris Lattner
a39dcb5377
eliminate RegisterOpt. It does the same thing as RegisterPass.
...
llvm-svn: 29925
2006-08-27 22:42:52 +00:00
Chris Lattner
33bd5dcfb7
s|llvm/Support/Visibility.h|llvm/Support/Compiler.h|
...
llvm-svn: 29911
2006-08-27 12:54:02 +00:00
Chris Lattner
a75d3b6d0d
Don't attempt to split subloops out of a loop with a huge number of backedges.
...
Not only will this take huge amounts of compile time, the resultant loop nests
won't be useful for optimization. This reduces loopsimplify time on
Transforms/LoopSimplify/2006-08-11-LoopSimplifyLongTime.ll from ~32s to ~0.4s
with a debug build of llvm on a 2.7Ghz G5.
llvm-svn: 29647
2006-08-12 05:25:00 +00:00
Chris Lattner
0885025198
Reimplement the loopsimplify code which deletes edges from unreachable
...
blocks that target loop blocks.
Before, the code was run once per loop, and depended on the number of
predecessors each block in the loop had. Unfortunately, scanning preds can
be really slow when huge numbers of phis exist or when phis with huge numbers
of inputs exist.
Now, the code is run once per function and scans successors instead of preds,
which is far faster. In addition, the new code is simpler and is goto free,
woo.
This change speeds up a nasty testcase Duraid provided me from taking hours to
taking ~72s with a debug build. The functionality this implements is already
tested in the testsuite as Transforms/CodeExtractor/2004-03-13-LoopExtractorCrash.ll.
llvm-svn: 29644
2006-08-12 04:51:20 +00:00
Chris Lattner
b7442c1f8b
Fix PR867 (and maybe 868) and testcsae:
...
Transforms/SimplifyCFG/2006-08-03-Crash.ll
llvm-svn: 29515
2006-08-03 21:40:24 +00:00
Chris Lattner
1768e89248
Add special check to avoid isLoop call. Simple, but doesn't seem to speed
...
up lcssa much in practice.
llvm-svn: 29465
2006-08-02 00:16:47 +00:00
Chris Lattner
a07bbb37e4
Replace the SSA update code in LCSSA with a bottom-up approach instead of a top
...
down approach, inspired by discussions with Tanya.
This approach is significantly faster, because it does not need dominator
frontiers and it does not insert extraneous unused PHI nodes. For example, on
252.eon, in a release-asserts build, this speeds up LCSSA (which is the slowest
pass in gccas) from 9.14s to 0.74s on my G5. This code is also slightly smaller
and significantly simpler than the old code.
Amusingly, in a normal Release build (which includes the
"assert(L->isLCSSAForm());" assertion), asserting that the result of LCSSA
is in LCSSA form is actually slower than the LCSSA transformation pass
itself on 252.eon. I will see if Loop::isLCSSAForm can be sped up next.
llvm-svn: 29463
2006-08-02 00:06:09 +00:00
Chris Lattner
92a0b69813
Add some advice
...
llvm-svn: 29324
2006-07-27 04:24:14 +00:00
Chris Lattner
e1054a6cfe
silence warnings in a release build
...
llvm-svn: 29189
2006-07-18 21:48:57 +00:00
Chris Lattner
3a664f7dc0
eliminate some ugly code, using ConstantExpr::getWithOperands instead.
...
llvm-svn: 29149
2006-07-14 22:21:31 +00:00
Chris Lattner
b77e687f6f
Handle instructions in the map, but that map to a null pointer.
...
This unbreaks smg2000.
llvm-svn: 29127
2006-07-12 21:37:11 +00:00
Chris Lattner
0d4c198ecd
In addition to deleting calls, the inliner can constant fold them as well.
...
Handle this case, which doesn't require a new callgraph edge. This fixes
a crash compiling MallocBench/gs.
llvm-svn: 29121
2006-07-12 18:37:18 +00:00
Chris Lattner
e5e2e8d917
Change the callgraph representation to store the callsite along with the
...
target CG node. This allows the inliner to properly update the callgraph
when using the pruning inliner. The pruning inliner may not copy over all
call sites from a callee to a caller, so the edges corresponding to those
call sites should not be copied over either.
This fixes PR827 and Transforms/Inline/2006-07-12-InlinePruneCGUpdate.ll
llvm-svn: 29120
2006-07-12 18:29:36 +00:00
Owen Anderson
7c03596d93
Fix typo in the comment.
...
llvm-svn: 29078
2006-07-09 21:35:40 +00:00
Owen Anderson
5812f5d7a8
Add a fix for an issue where LCSSA would fail to insert undef's in some corner
...
cases. Ideally, this issue will go away in the future as LCSSA gets smarter
about which Phi nodes it inserts.
llvm-svn: 29076
2006-07-09 08:14:06 +00:00
Chris Lattner
496bd3fbf6
Use hidden visibility to make symbols in an anonymous namespace get
...
dropped. This shrinks libllvmgcc.dylib another 67K
llvm-svn: 28975
2006-06-28 23:17:24 +00:00
Chris Lattner
1b42069db1
Use the PotDoms map to memoize 'dominating value' lookup. With this patch,
...
LCSSA is still the slowest pass when gccas'ing 252.eon, but now it only takes
39s instead of 289s. :)
llvm-svn: 28776
2006-06-14 01:13:57 +00:00
Owen Anderson
c50df7da72
Fix another instance where PHI nodes need special treatment.
...
llvm-svn: 28774
2006-06-13 20:50:09 +00:00
Owen Anderson
f43ab30bc0
Fix a bug that was causing major slowdowns in povray. This was due to LCSSA
...
not handling PHI nodes correctly when determining if a value was live-out.
This patch reduces the number of detected live-out variables in the testcase
from 6565 to 485.
llvm-svn: 28771
2006-06-13 19:37:18 +00:00
Chris Lattner
649af38df3
Fix an infinite loop on Transforms/SimplifyCFG/2006-06-12-InfLoop.ll
...
llvm-svn: 28758
2006-06-12 20:18:01 +00:00
Owen Anderson
a947d699dd
Fix for 2006-06-26-MultipleExitsSingleBlock.
...
If a single exit block has multiple predecessors within the loop, it will
appear in the exit blocks list more than once. LCSSA needs to take that into
account so that it doesn't double process that exit block.
llvm-svn: 28750
2006-06-12 07:10:16 +00:00
Owen Anderson
15b85dbfa5
Re-commit the safe parts of my 6/9 patch. Still working on fixing the unsafe parts.
...
llvm-svn: 28748
2006-06-11 19:22:28 +00:00
Evan Cheng
d99c8e2e5f
Back out Owen's 6/9 changes. They broke MultiSource/Benchmarks/Prolangs-C/bison (and perhaps others).
...
llvm-svn: 28747
2006-06-11 09:32:57 +00:00
Owen Anderson
6c2f7512a6
Make Loop able to verify that it is in LCSSA-form, and have the LCSSA pass assert
...
on this.
llvm-svn: 28738
2006-06-09 18:33:30 +00:00
Owen Anderson
0d9583aa41
Update some comments, and expose LCSSAID in preparation for having other passes
...
require LCSSA.
llvm-svn: 28734
2006-06-08 20:02:53 +00:00
Owen Anderson
04f6f0775a
Fix some formatting, and use inLoop() when appropriate.
...
llvm-svn: 28694
2006-06-06 04:36:36 +00:00
Owen Anderson
dc8495f4ad
Stop a memory leak, and update some comments.
...
llvm-svn: 28693
2006-06-06 04:28:30 +00:00
Owen Anderson
4343713be4
Some more clean-up, and squash an IDF-Phi related bug.
...
llvm-svn: 28680
2006-06-04 00:55:19 +00:00
Owen Anderson
1a72d98dd2
Various clean-ups suggested by Chris.
...
llvm-svn: 28678
2006-06-04 00:02:23 +00:00
Owen Anderson
b83c3beb44
Fix a bug in Phi-noded insertion. Also, update some comments to reflect what's
...
actually going on.
llvm-svn: 28677
2006-06-03 23:22:50 +00:00
Chris Lattner
0f5ef733cc
Force anything that #includes llvm/Transforms/Utils/UnifyFunctionExitNodes.h
...
to link in the implementation. Thanks to Anton Korobeynikov for figuring out
what was going on here.
llvm-svn: 28660
2006-06-02 18:40:06 +00:00
Chris Lattner
3300df2fb9
Remove dead #include
...
llvm-svn: 28642
2006-06-01 20:02:28 +00:00
Chris Lattner
93c46b83b6
Make the "pruning cloner" smarter. As it propagates constants through the
...
code (while cloning) it often gets the branch/switch instructions. Since it
knows that edges of the CFG are dead, it need not clone (or even look) at
the obviously dead blocks. This should speed up the inliner substantially on
code where there are lots of inlinable calls to functions with constant
arguments. On C++ code in particular, this kicks in.
llvm-svn: 28641
2006-06-01 19:19:23 +00:00
Owen Anderson
1b0cd45469
Remove a FIXME that was fixed with my last patch.
...
llvm-svn: 28619
2006-06-01 06:07:40 +00:00
Owen Anderson
facd63d07c
More cleanups. Also, add a special case for updating PHI nodes, and
...
reimplement getValueDominatingFunction to walk the DominanceTree rather than
just searching blindly.
llvm-svn: 28618
2006-06-01 06:05:47 +00:00
Owen Anderson
aae280d83c
Extract a huge loop into a helper method. Fix a few iterator-invalidation bugs.
...
llvm-svn: 28599
2006-05-31 20:55:06 +00:00
Owen Anderson
d46a77c3c8
Add Use replacement. Assuming there is nothing horribly wrong with this, LCSSA
...
is now theoretically feature-complete. It has not, however, been thoroughly
test, and is still considered experimental.
llvm-svn: 28529
2006-05-29 01:00:00 +00:00
Owen Anderson
a857559867
Major think-o. Iterate over all live out-of-loop values, and perform the
...
other calculations on each individually, rather than trying to delay it and do
them all at the end.
llvm-svn: 28527
2006-05-28 19:33:28 +00:00
Owen Anderson
703f6baab0
Make LCSSA insert proper Phi nodes throughout the rest of the CFG by computing
...
the iterated Dominance Frontier of the loop-closure Phi's. This is the
second phase of the LCSSA pass. The third phase (coming soon) will be to
update all uses of loop variables to use the loop-closure Phi's instead.
llvm-svn: 28524
2006-05-27 18:47:11 +00:00
Chris Lattner
0189e09b89
Fix some regression from the inliner patch I committed last night. This fixes
...
ldecod, lencod, and SPASS.
llvm-svn: 28523
2006-05-27 17:28:13 +00:00
Chris Lattner
04d52ee9a2
Switch the inliner over to using CloneAndPruneFunctionInto. This effectively
...
makes it so that it constant folds instructions on the fly. This is good
for several reasons:
0. Many instructions are constant foldable after inlining, particularly if
inlining a call with constant arguments.
1. Without this, the inliner has to allocate memory for all of the instructions
that can be constant folded, then a subsequent pass has to delete them. This
gets the job done without this extra work.
2. This makes the inliner *pass* a bit more aggressive: in particular, it
partially solves a phase order issue where the inliner would inline lots
of code that folds away to nothing, but think that the resultant function
is big because of this code that will be gone. Now the code never exists.
This is the first part of a 2-step process. The second part will be smart
enough to see when this implicit constant folding propagates a constant into
a branch or switch instruction, making CFG edges dead.
This implements Transforms/Inline/inline_constprop.ll
llvm-svn: 28521
2006-05-27 01:28:04 +00:00
Chris Lattner
12c9d54f79
Implement a new method, CloneAndPruneFunctionInto, as documented.
...
llvm-svn: 28519
2006-05-27 01:22:24 +00:00
Chris Lattner
1835cfb302
Refactor some code to expose an interface to constant fold and instruction given it's opcode, typeand operands.
...
llvm-svn: 28517
2006-05-27 01:18:04 +00:00
Owen Anderson
1843c1ee17
A few small clean-ups, and the addition of an LCSSA statistic.
...
llvm-svn: 28512
2006-05-27 00:31:37 +00:00
Owen Anderson
d706fc78b2
Fix a copy-and-paste-o that would break some compilers.
...
llvm-svn: 28507
2006-05-26 21:19:17 +00:00
Owen Anderson
2414055ac6
Clean up and refactor LCSSA a bunch. It should also run faster now, though
...
there's still a lot of work to be done on it.
llvm-svn: 28506
2006-05-26 21:11:53 +00:00
Owen Anderson
93098cfc4c
Skeletal LCSSA pass. This is currently non-functional. Expect functionality
...
and documentation updates soo.
llvm-svn: 28495
2006-05-26 13:58:26 +00:00
Chris Lattner
d3eff919d8
Revert a patch that is unsafe, due to out of range array accesses in inner
...
array scopes possibly accessing valid memory in outer subscripts.
llvm-svn: 28478
2006-05-25 21:25:12 +00:00
Chris Lattner
0b38bc2a99
Patch for a new instcombine xform, patch contributed by Nick Lewycky!
...
This implements Transforms/InstCombine/2006-05-10-InvalidIndexUndef.ll
llvm-svn: 28450
2006-05-24 17:34:30 +00:00
Reid Spencer
8d035f492c
Fix a doxygen problem and break lines at 80 columns
...
llvm-svn: 28395
2006-05-19 19:09:46 +00:00
Chris Lattner
9a0d02f8f7
Add a CloneModule call that exposes the mapping of values from the old module
...
to the new module. Patch provided by Nick Lewycky!
llvm-svn: 28349
2006-05-17 18:05:35 +00:00
Chris Lattner
5aa7f78065
remove some dead code identified by coverity
...
llvm-svn: 28289
2006-05-14 18:45:44 +00:00
Chris Lattner
4ad747c469
remove dead variables
...
llvm-svn: 28286
2006-05-14 18:33:57 +00:00
Chris Lattner
f49a22d601
Patch to make some xforms preserve each other. Patch contributed by
...
Domagoj Babic!
llvm-svn: 28181
2006-05-09 04:13:41 +00:00
Chris Lattner
be67e21327
Fix some nondeterminstic behavior in the mem2reg pass that (in addition to
...
nondeterminism being bad) could cause some trivial missed optimizations (dead
phi nodes being left around for later passes to clean up).
With this, llvm-gcc4 now bootstraps and correctly compares. I don't know
why I never tried to do it before... :)
llvm-svn: 27984
2006-04-27 01:14:43 +00:00
Chris Lattner
a0a718c0cc
Add supprot for shufflevector
...
llvm-svn: 27513
2006-04-08 01:19:12 +00:00
Chris Lattner
32b65613d9
Fix inlining of insert/extract element constantexprs
...
llvm-svn: 27478
2006-04-07 04:41:03 +00:00
Chris Lattner
e314cf19ba
Adjust to change in Intrinsics.gen interface.
...
llvm-svn: 27344
2006-04-02 03:35:01 +00:00
Chris Lattner
704770bfe7
add valuemapper support for inline asm
...
llvm-svn: 27332
2006-04-01 23:17:11 +00:00
Chris Lattner
dc5d97a341
teach the inliner to work with packed constants
...
llvm-svn: 27161
2006-03-27 05:50:18 +00:00
Chris Lattner
a7d7a291d0
use autogenerated side-effect information
...
llvm-svn: 26673
2006-03-09 22:38:10 +00:00
Chris Lattner
d9b0de3240
Fix Transforms/SimplifyCFG/2006-02-17-InfiniteUnroll.ll
...
llvm-svn: 26275
2006-02-18 00:33:17 +00:00
Chris Lattner
99b81c856f
Canonicalize inner loops before outer loops. Inner loop canonicalization
...
can provide work for the outer loop to canonicalize.
This fixes a case that breaks unswitching.
llvm-svn: 26189
2006-02-14 23:06:02 +00:00
Chris Lattner
277e76337e
When splitting exit edges to canonicalize loops, make sure to put the new
...
block in the appropriate loop nest.
Third time is the charm, right?
llvm-svn: 26187
2006-02-14 22:34:08 +00:00
Chris Lattner
54a36a05b3
Revert my last patch. It too breaks stuff
...
llvm-svn: 26128
2006-02-12 01:59:10 +00:00
Chris Lattner
7c61638c1b
Fix for my previously reverted patch
...
llvm-svn: 26126
2006-02-11 21:24:54 +00:00
Chris Lattner
05b7c448f3
revert my previous change, it exposed other problems.
...
llvm-svn: 26121
2006-02-11 08:47:47 +00:00
Chris Lattner
c859e1d2b5
Make this check stricter. Disallow loop exit blocks from being shared by
...
loops and their subloops.
llvm-svn: 26118
2006-02-11 02:13:17 +00:00
Chris Lattner
95fccc4772
remove dead expr
...
llvm-svn: 26116
2006-02-11 01:43:37 +00:00
Chris Lattner
66f10c8957
teach the cloner to handle inline asms
...
llvm-svn: 25633
2006-01-26 01:55:22 +00:00
Chris Lattner
d09c95f83c
rename method
...
llvm-svn: 25572
2006-01-24 04:16:34 +00:00
Chris Lattner
c06c8d8c06
When cloning a module, clone the inline asm.
...
llvm-svn: 25559
2006-01-23 23:06:28 +00:00
Chris Lattner
adff158fbd
Add explicit #includes of <iostream>
...
llvm-svn: 25509
2006-01-22 22:53:01 +00:00
Robert Bocchino
40c6c91f56
ConstantFoldLoadThroughGEPConstantExpr wasn't handling pointers to
...
packed types correctly.
llvm-svn: 25470
2006-01-19 23:53:23 +00:00
Chris Lattner
f7623e2065
Make sure that cloning a module clones its target triple and dependent
...
library list as well. This should help bugpoint.
llvm-svn: 25424
2006-01-18 21:32:45 +00:00
Robert Bocchino
443661ec6b
Constant folding support for the insertelement operation.
...
llvm-svn: 25407
2006-01-17 20:07:07 +00:00
Reid Spencer
3cecd3c4cf
For PR411:
...
This patch is an incremental step towards supporting a flat symbol table.
It de-overloads the intrinsic functions by providing type-specific intrinsics
and arranging for automatically upgrading from the old overloaded name to
the new non-overloaded name. Specifically:
llvm.isunordered -> llvm.isunordered.f32, llvm.isunordered.f64
llvm.sqrt -> llvm.sqrt.f32, llvm.sqrt.f64
llvm.ctpop -> llvm.ctpop.i8, llvm.ctpop.i16, llvm.ctpop.i32, llvm.ctpop.i64
llvm.ctlz -> llvm.ctlz.i8, llvm.ctlz.i16, llvm.ctlz.i32, llvm.ctlz.i64
llvm.cttz -> llvm.cttz.i8, llvm.cttz.i16, llvm.cttz.i32, llvm.cttz.i64
New code should not use the overloaded intrinsic names. Warnings will be
emitted if they are used.
llvm-svn: 25366
2006-01-16 21:12:35 +00:00
Chris Lattner
fea434f37e
Teach the inliner to update the CallGraph itself, and have it add edges to
...
llvm.stacksave/restore when it inserts calls to them.
llvm-svn: 25320
2006-01-14 20:07:50 +00:00
Nate Begeman
4750001146
Add bswap intrinsics as documented in the Language Reference
...
llvm-svn: 25309
2006-01-14 01:25:24 +00:00
Chris Lattner
818f217fad
it is ok to dce stacksave.
...
llvm-svn: 25295
2006-01-13 21:31:54 +00:00
Chris Lattner
423aeb28d5
If inlining a call to a function that contains dynamic allocas, wrap the
...
resultant code with llvm.stacksave/llvm.stackrestore intrinsics.
llvm-svn: 25286
2006-01-13 19:34:14 +00:00
Chris Lattner
672f2df6d0
Use ClonedCodeInfo to avoid another walk over the inlined code, this this
...
time in common C cases.
llvm-svn: 25285
2006-01-13 19:18:11 +00:00
Chris Lattner
6f96396bae
Use the ClonedCodeInfo object to avoid scans of the inlined code when
...
it doesn't contain any calls. This is a fairly common case for C++ code,
so it will probably speed up the inliner marginally in these cases.
llvm-svn: 25284
2006-01-13 19:15:15 +00:00
Chris Lattner
ec00fcaba6
Refactor a bunch of invoke handling stuff out into a new function
...
"HandleInlinedInvoke". No functionality change.
llvm-svn: 25283
2006-01-13 19:05:59 +00:00
Chris Lattner
67fb415248
Allow the code cloning interfaces to capture some important info about the
...
code being cloned if the client wants.
llvm-svn: 25281
2006-01-13 18:39:17 +00:00
Chris Lattner
32ff638ae5
Fix a bug I noticed by inspection: if the first instruction in the inlined
...
function was not an alloca, we wouldn't check the entry block for any allocas,
leading to increased stack space in some cases. In practice, allocas are almost
always at the top of the block, so this was never noticed.
llvm-svn: 25280
2006-01-13 18:16:48 +00:00
Chris Lattner
d726328ee9
Preserve and update ETForest. Patch by Daniel Berlin
...
llvm-svn: 25203
2006-01-11 05:11:13 +00:00
Robert Bocchino
9a57550e4e
Added support for the extractelement operation.
...
llvm-svn: 25181
2006-01-10 19:05:34 +00:00
Chris Lattner
05816ecb7f
Teach loopsimplify to update et-forest. Patch contributed by Daniel Berlin!
...
llvm-svn: 25153
2006-01-09 08:03:08 +00:00
Chris Lattner
f9a1c37c84
Fix SimplifyCFG/2005-12-03-IncorrectPHIFold.ll
...
llvm-svn: 24581
2005-12-03 18:25:58 +00:00
Chris Lattner
fc4928a31a
Implement a refinement to the mem2reg algorithm for cases where an alloca
...
has a single def. In this case, look for uses that are dominated by the def
and attempt to rewrite them to directly use the stored value.
This speeds up mem2reg on these values and reduces the number of phi nodes
inserted. This should address PR665.
llvm-svn: 24411
2005-11-18 07:31:42 +00:00
Chris Lattner
86e6fa1ee7
This needs proper dominance
...
llvm-svn: 24410
2005-11-18 07:29:44 +00:00
Chris Lattner
64f57e9d14
Fix #include order
...
llvm-svn: 24044
2005-10-27 16:34:00 +00:00
John Criswell
d6538108e8
Move some constant folding code shared by Analysis and Transform passes
...
into the LLVMAnalysis library.
This allows LLVMTranform and LLVMTransformUtils to be archives and linked
with LLVMAnalysis.a, which provides any missing definitions.
llvm-svn: 24036
2005-10-27 15:54:34 +00:00
John Criswell
b0f5adf975
1. Remove libraries no longer created from the list of libraries linked into the
...
SparcV9 JIT.
2. Make LLVMTransformUtils a relinked object file and always link it before
LLVMAnalysis.a. These two libraries have circular dependencies on each
other which creates problem when building the SparcV9 JIT. This change
fixes the dependency on all platforms problems with a minimum of fuss.
llvm-svn: 24023
2005-10-26 20:35:13 +00:00
Jeff Cohen
e561bf727e
Update Visual Studio projects to reflect moved file.
...
llvm-svn: 23998
2005-10-26 05:36:51 +00:00
Chris Lattner
e6f7a38925
DONT_BUILD_RELINKED is gone and implied by BUILD_ARCHIVE now
...
llvm-svn: 23940
2005-10-24 02:26:13 +00:00
Chris Lattner
a4b13acd52
Only build .a file versions of these libraries, instead of .a and .o versions.
...
This should speed up build times.
llvm-svn: 23933
2005-10-24 01:59:48 +00:00
Chris Lattner
27464c8061
Fix DemoteRegToStack on an invoke. This fixes PR634.
...
llvm-svn: 23618
2005-10-04 00:44:01 +00:00
Chris Lattner
cd43592209
Clean up the code a bit. Use isInstructionTriviallyDead to be more aggressive
...
and more correct than use_empty(). This fixes PR635 and
SimplifyCFG/2005-10-02-InvokeSimplify.ll
llvm-svn: 23616
2005-10-03 23:43:43 +00:00
Chris Lattner
6ce1d7dabb
Constant fold llvm.sqrt
...
llvm-svn: 23487
2005-09-28 01:34:32 +00:00
Chris Lattner
92b0563eb3
allow demotion to volatile values, add support for invoke
...
llvm-svn: 23473
2005-09-27 19:39:00 +00:00
Chris Lattner
d8b3c644e1
Move the ConstantFoldLoadThroughGEPConstantExpr function out of the InstCombine
...
pass.
llvm-svn: 23444
2005-09-26 05:27:10 +00:00
Chris Lattner
5ce68bab6c
remove some debugging code
...
llvm-svn: 23411
2005-09-23 18:49:09 +00:00
Chris Lattner
88c234b5e4
Fold two consequtive branches that share a common destination between them.
...
This implements SimplifyCFG/branch-fold.ll, and is useful on ?:/min/max heavy
code
llvm-svn: 23410
2005-09-23 18:47:20 +00:00
Chris Lattner
67437dce2c
simplify some logic further
...
llvm-svn: 23408
2005-09-23 07:23:18 +00:00
Chris Lattner
48df043325
pull a bunch of logic out of SimplifyCFG into a helper fn
...
llvm-svn: 23407
2005-09-23 06:39:30 +00:00
Chris Lattner
07cf4f249d
Start threading across blocks with code in them, so long as the code does
...
not define a value that is used outside of it's block. This catches many
more simplifications, e.g. 854 in 176.gcc, 137 in vpr, etc.
This implements branch-phi-thread.ll:test3.ll
llvm-svn: 23397
2005-09-20 01:48:40 +00:00
Chris Lattner
44a9487815
Implement merging of blocks with the same condition if the block has multiple
...
predecessors. This implements branch-phi-thread.ll::test1
llvm-svn: 23395
2005-09-20 00:43:16 +00:00
Chris Lattner
4013184d6b
Reject a case we don't handle yet
...
llvm-svn: 23393
2005-09-19 23:57:04 +00:00
Chris Lattner
642f0d6aea
remove debugging code :-/
...
llvm-svn: 23392
2005-09-19 23:50:15 +00:00
Chris Lattner
34785e2d43
Implement SimplifyCFG/branch-phi-thread.ll, the most trivial case of threading
...
control across branches with determined outcomes. More generality to follow.
This triggers a couple thousand times in specint.
llvm-svn: 23391
2005-09-19 23:49:37 +00:00
Chris Lattner
2681a83c43
Teach SplitCriticalEdge to update LoopInfo if it is alive. This fixes
...
a problem in LoopStrengthReduction, where it would split critical edges
then confused itself with outdated loop information.
llvm-svn: 22776
2005-08-13 01:38:43 +00:00
Chris Lattner
7b5d0e1463
Change break critical edges to not remove, then insert, PHI node entries.
...
Instead, just update the BB in-place. This is both faster, and it prevents
split-critical-edges from shuffling the PHI argument list unneccesarily.
llvm-svn: 22765
2005-08-12 21:58:07 +00:00
Chris Lattner
915053ba79
This code can handle non-dominating instructions
...
llvm-svn: 22667
2005-08-05 00:57:45 +00:00
Nate Begeman
ef41400067
Fix a fixme in CondPropagate.cpp by moving a PhiNode optimization into
...
BasicBlock's removePredecessor routine. This requires shuffling around
the definition and implementation of hasContantValue from Utils.h,cpp into
Instructions.h,cpp
llvm-svn: 22664
2005-08-04 23:24:19 +00:00
Chris Lattner
3672ceb70b
Fix Transforms/SimplifyCFG/2005-08-03-PHIFactorCrash.ll, a problem that
...
occurred while bugpointing another testcase
llvm-svn: 22621
2005-08-03 17:59:45 +00:00
Chris Lattner
6e1d5a8b28
Finally, add the required constraint checks to fix Transforms/SimplifyCFG/2005-08-01-PHIUpdateFail.ll
...
the right way
llvm-svn: 22615
2005-08-03 00:59:12 +00:00
Chris Lattner
cbf4b650ba
Simplify some code, add the correct pred checks
...
llvm-svn: 22613
2005-08-03 00:38:27 +00:00
Chris Lattner
c59014baef
Refactor code out of PropagatePredecessorsForPHIs, turning it into a pure function with no side-effects
...
llvm-svn: 22612
2005-08-03 00:29:26 +00:00
Chris Lattner
0f4e0d19cc
use splice instead of remove/insert to avoid some symtab operations
...
llvm-svn: 22611
2005-08-03 00:23:42 +00:00
Chris Lattner
adbd086f50
move two functions up in the file, use SafeToMergeTerminators to eliminate
...
some duplicated code
llvm-svn: 22610
2005-08-03 00:19:45 +00:00
Chris Lattner
b9efb90e1a
Rip some code out of the main SimplifyCFG function into a subfunction and
...
call it from the only place it is live. No functionality changes.
llvm-svn: 22609
2005-08-03 00:11:16 +00:00
Chris Lattner
df31d75597
Disable this patch:
...
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20050801/027345.html
This breaks real programs and only fixes an obscure regression testcase. A
real fix is in development.
llvm-svn: 22606
2005-08-02 23:31:38 +00:00
Chris Lattner
b5906d5783
Change a place to use an arbitrary value instead of null, when possible
...
llvm-svn: 22605
2005-08-02 23:29:23 +00:00
Chris Lattner
b8fd6a098e
This code was very close, but not quite right. It did not take into
...
consideration the case where a reference in an unreachable block could
occur. This fixes Transforms/SimplifyCFG/2005-08-01-PHIUpdateFail.ll,
something I ran into while bugpoint'ing another pass.
llvm-svn: 22584
2005-08-02 03:24:05 +00:00
Jeff Cohen
bd51ec7461
Eliminate all remaining tabs and trailing spaces.
...
llvm-svn: 22523
2005-07-27 06:12:32 +00:00
Chris Lattner
02fe175f3d
Fix PR590 and Transforms/Mem2Reg/2005-06-30-ReadBeforeWrite.ll.
...
The optimization for locally used allocas was not safe for allocas that
were read before they were written. This change disables that optimization
in that case.
llvm-svn: 22318
2005-06-30 07:29:44 +00:00
Andrew Lenharth
cdaaa66e7d
prevent DCE of vaarg intrinsics. This should take care of most regressions
...
llvm-svn: 22263
2005-06-19 14:41:20 +00:00
Chris Lattner
8c76d5c957
Don't crash on: X = phi (X, X).
...
This fixes PR584 and Transforms/SimplifyCFG/2005-06-16-PHICrash.ll
llvm-svn: 22232
2005-06-17 01:45:53 +00:00
Chris Lattner
b13335fff2
Fix Transforms/SimplifyCFG/switch-simplify-crash.ll
...
llvm-svn: 22158
2005-05-20 22:19:54 +00:00
Chris Lattner
214f1a8cf9
Make sure to preserve the calling convention when changing an invoke into
...
a call. This fixes Prolangs-C++/deriv2, kimwitu++, and Misc-C++/bigfib
on X86 with -enable-x86-fastcc.
llvm-svn: 22023
2005-05-14 12:21:56 +00:00
Chris Lattner
eff214d7de
wrap long lines, preserve calling conventions when cloning functions and
...
turning calls into invokes
llvm-svn: 21797
2005-05-09 01:04:34 +00:00
Chris Lattner
c9be572154
BAD typeo which caused many testsuite failures last night. Note to self, do
...
not change code after testing it without retesting!
llvm-svn: 21741
2005-05-06 17:13:16 +00:00
Chris Lattner
0187977904
Implement Transforms/Inline/inline-tail.ll
...
llvm-svn: 21736
2005-05-06 06:47:52 +00:00
Chris Lattner
b953e27f85
DCE intrinsic instructions without side effects.
...
llvm-svn: 21719
2005-05-06 05:27:34 +00:00
Reid Spencer
ff5cc3cb16
Remove optimizations that don't require both operands to be constant. These
...
are moved to simplify-libcalls pass.
llvm-svn: 21614
2005-04-29 05:55:35 +00:00
Reid Spencer
fb6e0590a8
* Add constant folding for additional floating point library calls such as
...
sinh, cosh, etc.
* Make the name comparisons for the fp libcalls a little more efficient by
switching on the first character of the name before doing comparisons.
llvm-svn: 21611
2005-04-28 23:01:59 +00:00
Jeff Cohen
6c42217055
Eliminate tabs and trailing spaces
...
llvm-svn: 21480
2005-04-23 21:38:35 +00:00
Misha Brukman
53e199440e
Remove trailing whitespace
...
llvm-svn: 21427
2005-04-21 23:48:37 +00:00
Chris Lattner
472c891d23
Improve doxygen documentation, patch contributed by Evan Jones!
...
llvm-svn: 21393
2005-04-21 16:04:49 +00:00
Chris Lattner
6ce1b109aa
Teach simplifycfg that setcc is cheap and non-trapping, so that it can
...
convert this:
%tmp.1 = seteq int %i, 0 ; <bool> [#uses=1]
br bool %tmp.1, label %shortcirc_done, label %shortcirc_next
shortcirc_next: ; preds = %entry
%tmp.4 = seteq int %j, 0 ; <bool> [#uses=1]
br label %shortcirc_done
shortcirc_done: ; preds = %shortcirc_next, %entry
%shortcirc_val = phi bool [ %tmp.4, %shortcirc_next ], [ true, %entry ] ; <bool> [#uses=1]
to this:
%tmp.1 = seteq int %i, 0 ; <bool> [#uses=1]
%tmp.4 = seteq int %j, 0 ; <bool> [#uses=1]
%shortcirc_val = select bool %tmp.1, bool true, bool %tmp.4 ; <bool> [#uses=1]
... which is later simplified by instcombine into an or.
llvm-svn: 21388
2005-04-21 05:31:13 +00:00
Chris Lattner
ee06161a63
Get rid of this for_each loop
...
llvm-svn: 21253
2005-04-12 18:51:33 +00:00
Chris Lattner
c9a3ea81bf
Fix the missing symbols problem Bill was hitting. Patch contributed by
...
Bill Wendling!!
llvm-svn: 20649
2005-03-17 15:38:16 +00:00
Chris Lattner
4b688a1c70
This mega patch converts us from using Function::a{iterator|begin|end} to
...
using Function::arg_{iterator|begin|end}. Likewise Module::g* -> Module::global_*.
This patch is contributed by Gabor Greif, thanks!
llvm-svn: 20597
2005-03-15 04:54:21 +00:00
Chris Lattner
1ccff5c8c7
second argument to Value::setName is now gone.
...
llvm-svn: 20463
2005-03-05 19:05:20 +00:00
Chris Lattner
a024984017
Fix spelling, patch contributed by Gabor Greif!
...
llvm-svn: 20343
2005-02-27 06:18:25 +00:00
Chris Lattner
14f720d625
remove extraneous cast
...
llvm-svn: 20334
2005-02-26 18:33:28 +00:00
Chris Lattner
7a434679c3
Implement Transforms/SimplifyCFG/switch_thread.ll
...
This does a simple form of "jump threading", which eliminates CFG edges that
are provably dead. This triggers 90 times in the external tests, and
eliminating CFG edges is always always a good thing! :)
llvm-svn: 20300
2005-02-24 06:17:52 +00:00
Chris Lattner
ccc0c99fae
switchinst ctor now takes a hint for the number of cases that it will have.
...
llvm-svn: 19898
2005-01-29 00:38:26 +00:00
Chris Lattner
5fff877f74
Implement SimplifyCFG/DeadSetCC.ll
...
SimplifyCFG is one of those passes that we use for final cleanup: it should
not rely on other passes to clean up its garbage. This fixes the "why are
trivially dead setcc's in the output of gccas" problem.
llvm-svn: 19212
2005-01-01 16:02:12 +00:00
Chris Lattner
8378361f0c
The split bb is really the exit of the old function
...
llvm-svn: 18799
2004-12-11 16:59:54 +00:00
Chris Lattner
40e97884f6
Fix Regression/Transforms/SimplifyCFG/2004-12-10-SimplifyCFGCrash.ll,
...
and the failure on make_dparser last night.
llvm-svn: 18766
2004-12-10 17:42:31 +00:00
Chris Lattner
c58bc8d96e
Squelch warning
...
llvm-svn: 18381
2004-11-30 07:47:34 +00:00
Chris Lattner
537e5a6b50
Fix test/Regression/Transforms/LICM/2004-09-14-AliasAnalysisInvalidate.llx
...
This only fails on darwin or on X86 under valgrind.
llvm-svn: 18377
2004-11-30 07:01:15 +00:00
Chris Lattner
25b93fea2a
Alkis noticed that this variable is dead. Thanks!
...
llvm-svn: 18369
2004-11-30 04:01:44 +00:00
Chris Lattner
b237a19a78
If we have something like this:
...
if (x) {
code
...
} else {
code
...
}
Turn it into:
code
if (x) {
...
} else {
...
}
This reduces code size and in some common cases allows us to completely
eliminate the conditional. This turns several if/then/else blocks in loops
into straightline code in 179.art, turning the loops into single basic blocks
(good for modsched even!).
Maybe now brg will leave me alone ;-)
llvm-svn: 18366
2004-11-30 00:29:14 +00:00
Misha Brukman
9dd523842a
Allow constructor parameter to override aggregating args; fix spacing
...
llvm-svn: 18028
2004-11-20 02:20:27 +00:00
Chris Lattner
ab917141d0
Fix: CodeExtractor/2004-11-12-InvokeExtract.ll
...
llvm-svn: 17699
2004-11-13 00:06:45 +00:00
Chris Lattner
c6b1d7a081
Fix a bug where the code extractor would get a bit confused handling invoke
...
instructions, setting DefBlock to a block it did not have dom info for.
llvm-svn: 17697
2004-11-12 23:50:44 +00:00
Chris Lattner
3083f2a424
Do not compute the predecessor list for a block unless we need it.
...
This speeds up simplifycfg on this program, from 44.87s to 0.29s (with
a profiled build):
#define CL0(a) case a: goto c;
#define CL1(a) CL0(a##0) CL0(a##1) CL0(a##2) CL0(a##3) CL0(a##4) CL0(a##5) \
CL0(a##6) CL0(a##7) CL0(a##8) CL0(a##9)
#define CL2(a) CL1(a##0) CL1(a##1) CL1(a##2) CL1(a##3) CL1(a##4) CL1(a##5) \
CL1(a##6) CL1(a##7) CL1(a##8) CL1(a##9)
#define CL3(a) CL2(a##0) CL2(a##1) CL2(a##2) CL2(a##3) CL2(a##4) CL2(a##5) \
CL2(a##6) CL2(a##7) CL2(a##8) CL2(a##9)
#define CL4(a) CL3(a##0) CL3(a##1) CL3(a##2) CL3(a##3) CL3(a##4) CL3(a##5) \
CL3(a##6) CL3(a##7) CL3(a##8) CL3(a##9)
void f();
void a() {
int b;
c: switch (b) {
CL4(1)
}
}
This testcase is contrived to expose N^2 behavior, but this patch should speedup
simplifycfg on any programs that use large switch statements. This testcase
comes from GCC PR17895.
llvm-svn: 17389
2004-11-01 06:53:58 +00:00