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e191a19b69
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3556 Commits

Author SHA1 Message Date
Dan Gohman
e191a19b69 Fix (at least) quadratic worst-case complexity in DominanceFrontier::splitBlock: 
don't visit all blocks in the function, and don't iterate over the split blocks'
predecessor lists for each block visited.

Also, remove the special-case test for the entry block. Splitting the entry
block isn't common enough to make this worthwhile.

This fixes a major compile-time bottleneck which is exposed now that
LoopSimplify isn't being redundantly run both before and after
DominanceFrontier.

llvm-svn: 109408
 2010-07-26 17:55:15 +00:00
Dan Gohman
c90f474e23 Avoid copying and recopying a std::set. 
llvm-svn: 109405
 2010-07-26 17:45:33 +00:00
Dan Gohman
8babd895c7 Exit a search loop when the search goal is found. 
llvm-svn: 109404
 2010-07-26 17:41:45 +00:00
Dan Gohman
014eec6389 Fix formatting. 
llvm-svn: 109403
 2010-07-26 17:39:33 +00:00
Benjamin Kramer
0f8f1bd5a1 Reduce string trashing. 
llvm-svn: 109386
 2010-07-25 23:18:32 +00:00
Eli Friedman
6769a5186d PR7704: A function is not allowed to return a function; make sure to enforce 
this consistently.

llvm-svn: 109360
 2010-07-24 22:58:04 +00:00
Duncan Sands
5128cb3743 Clarify that if a new value handle is added while dropping value handles 
hanging off a value, then the dropping code will intentionally not drop
it too (since this is almost certainly a bug).

llvm-svn: 109337
 2010-07-24 12:09:22 +00:00
Gabor Greif
a7509fca78 undo 80 column trespassing I caused 
llvm-svn: 109092
 2010-07-22 10:37:47 +00:00
Dan Gohman
859ffd353e Make NamedMDNode not be a subclass of Value, and simplify the interface 
for creating and populating NamedMDNodes.

llvm-svn: 109061
 2010-07-21 23:38:33 +00:00
Owen Anderson
f8addbb0a1 Fix batch of converting RegisterPass<> to INTIALIZE_PASS(). 
llvm-svn: 109045
 2010-07-21 22:09:45 +00:00
Dan Gohman
f4c6f5cc46 NamedMDNode is never an operand. 
llvm-svn: 109031
 2010-07-21 20:25:43 +00:00
Dan Gohman
fc3ee085a0 Disallow null as a named metadata operand. 
Make MDNode::destroy private.
Fix the one thing that used MDNode::destroy, outside of MDNode itself.

One should never delete or destroy an MDNode explicitly. MDNodes
implicitly go away when there are no references to them (implementation
details aside).

llvm-svn: 109028
 2010-07-21 18:54:18 +00:00
Dan Gohman
b0db34a612 Use TrackingVH instead of WeakVH for NamedMDNode's operands, since nodes 
referenced by NamedMDNodes shouldn't be deleted.

llvm-svn: 109021
 2010-07-21 18:01:42 +00:00
Dan Gohman
328a6ebeae Tidy. 
llvm-svn: 109020
 2010-07-21 17:53:53 +00:00
Owen Anderson
f26c7a852f Move the smarts of AnalysisGroup registration into PassRegistry. 
llvm-svn: 109019
 2010-07-21 17:52:45 +00:00
Dan Gohman
09326457a8 Give MDNode printing has access to the current Module in more 
cases. This will be needed when function-local metadata can
appear in places that aren't intrinsic function arguments.

llvm-svn: 108971
 2010-07-20 23:55:01 +00:00
Owen Anderson
6265d52037 Move the handling of PassRegistrationListener's to PassRegistry. 
llvm-svn: 108966
 2010-07-20 23:41:56 +00:00
Dan Gohman
71724e8c7a Rename removeAllMetadata to clearMetadataHashEntries and simplify 
it to just do the things that need to be done when an instruction
is deleted.

llvm-svn: 108948
 2010-07-20 22:25:04 +00:00
Dan Gohman
b9a28557ea Add support for remapping metadata kind IDs when reading in a 
bitcode file, so that two bitcode files where the same metadata kind
name happens to have been assigned a different ID can still be
linked together.

Eliminate the restriction that metadata kind IDs can't be 0.

Change MD_dbg from 1 to 0, because we can now, and because it's
less mysterious that way.

llvm-svn: 108939
 2010-07-20 21:42:28 +00:00
Owen Anderson
2aafb91721 Move more functionality from Pass.cpp to PassRegistry.cpp. This global will go away eventually, but for now we still need it around. 
llvm-svn: 108932
 2010-07-20 21:22:24 +00:00
Dan Gohman
09c8c9c77c Remove setDbgMetadata and getDbgMetadata; their users have been 
replaced with setDebugLoc and getDebugLoc.

llvm-svn: 108914
 2010-07-20 20:18:21 +00:00
Owen Anderson
6db80f9d90 I just fail with SVN today. 
llvm-svn: 108888
 2010-07-20 19:23:55 +00:00
Owen Anderson
93cceb71a1 Convert the internal PassRegistrar class into a new, external PassRegistry class. No intended functionality change at this point. 
llvm-svn: 108877
 2010-07-20 18:39:06 +00:00
Owen Anderson
e5f3371961 Pull out r108755. After offline discussion with Chris, we're going to go a different direction with this. 
llvm-svn: 108856
 2010-07-20 16:55:05 +00:00
Owen Anderson
5f218b8612 Speculatively revert r108813, in an attempt to get the self-host buildbots working again. I don't see why this patch 
would cause them to fail the way they are, but none of the other intervening patches seem likely either.

llvm-svn: 108818
 2010-07-20 08:26:15 +00:00
Owen Anderson
cf625d0179 Reapply r108794, a fix for the failing test from last time. 
llvm-svn: 108813
 2010-07-20 06:52:42 +00:00
Daniel Dunbar
3280e3aebf Revert r108794, "Separate PassInfo into two classes: a constructor-free 
superclass (StaticPassInfo) and a constructor-ful subclass (PassInfo).", it is
breaking teh everything.

llvm-svn: 108805
 2010-07-20 03:06:07 +00:00
Owen Anderson
3502f9a91b Separate PassInfo into two classes: a constructor-free superclass (StaticPassInfo) and a constructor-ful subclass (PassInfo). 
llvm-svn: 108794
 2010-07-20 01:19:58 +00:00
Owen Anderson
522ef60c01 Change the implemented interfaces list on PassInfo from a std::vector to a manually implemented 
linked list.  This is a little slower and involves more malloc'ing, but these lists are
typically short, and it allows PassInfo to be entirely constant initializable.

llvm-svn: 108755
 2010-07-19 21:44:48 +00:00
Duncan Sands
7439f193bb Expose BasicBlock::moveBefore and moveAfter in C API, patch 
by Benjamin Saunders.

llvm-svn: 108699
 2010-07-19 15:31:07 +00:00
Gabor Greif
e35b95f719 precompute 20 tags 
llvm-svn: 108695
 2010-07-19 14:48:15 +00:00
Gabor Greif
330a6c1593 fullStopTag cannot happen here, it is handled above 
llvm-svn: 108631
 2010-07-17 20:52:46 +00:00
Chris Lattner
d2097ce7ab Fix PR7658, a problem where type refinement can trigger 
constant replacement which was botching its handling of
types.  Use of getType() instead of getRawType() was causing
the type map in constant folding to be updated wrong.

llvm-svn: 108610
 2010-07-17 06:13:52 +00:00
Chris Lattner
02dc24e49a tidy up 
llvm-svn: 108560
 2010-07-16 21:20:46 +00:00
Chris Lattner
663dd0eb36 eliminate unlockedRefineAbstractTypeTo, types are all per-llvmcontext, 
so there is no locking involved in type refinement.

llvm-svn: 108553
 2010-07-16 20:50:13 +00:00
Gabor Greif
4121df768b get the first few tags from a precomputed table (count can be increased if desired) 
llvm-svn: 108549
 2010-07-16 20:35:19 +00:00
Gabor Greif
17c48ecd68 eliminate CallInst::ArgOffset 
llvm-svn: 108522
 2010-07-16 09:38:02 +00:00
Tobias Grosser
9c86be4570 LoopSimplify does not update domfrontier correctly. 
This fixes PR7649.

llvm-svn: 108513
 2010-07-16 05:59:45 +00:00
Tobias Grosser
97dc00d1d8 Add dump() to DominanceFrontier 
llvm-svn: 108512
 2010-07-16 05:59:39 +00:00
Benjamin Kramer
da3e6cdb26 Don't pass StringRef by reference. 
llvm-svn: 108366
 2010-07-14 22:38:02 +00:00
Dan Gohman
4a92aee9d6 Just use getParent() instead of getModuleFromVal when the value is a Function. 
llvm-svn: 108358
 2010-07-14 21:12:44 +00:00
Dan Gohman
e91d5d0c36 Rename WriteConstantInt to WriteConstantInternal, to avoid confusion. 
llvm-svn: 108357
 2010-07-14 20:57:55 +00:00
Dan Gohman
2ac1d3a2c9 Add support for empty metadata nodes: !{}. 
llvm-svn: 108259
 2010-07-13 19:33:27 +00:00
Gabor Greif
9772b3e74f rotate CallInst operands 
with this commit the callee moves to the end of
the operand array (from the start) and the call
arguments now start at index 0 (formerly 1)

this ordering is now consistent with InvokeInst

this commit only flips the switch,
functionally it is equivalent to
r101465

I intend to commit several cleanups after a few
days of soak period

llvm-svn: 108240
 2010-07-13 15:31:36 +00:00
Gabor Greif
5c94fddae4 cache dereferenced iterators 
llvm-svn: 108131
 2010-07-12 10:36:48 +00:00
Duncan Sands
f7b98e2b1e Convert some tab stops into spaces. 
llvm-svn: 108130
 2010-07-12 08:16:59 +00:00
Chris Lattner
59bffe35a1 fix PR7311 by avoiding breaking casts when a bitcast from scalar->vector 
is involved.

llvm-svn: 108117
 2010-07-12 01:19:22 +00:00
Chris Lattner
c6f9c11878 make the prototypes for CreateMalloc and CreateFree more consistent. Patch 
by Hans Vandierendonck from PR7605

llvm-svn: 108116
 2010-07-12 00:57:28 +00:00
Nick Lewycky
9abc58b327 If it's safe to speculatively execute load(alloca) the it's safe to execute 
load(gep(alloca)) where the gep is all-zeros. There's more we could do here but
this is a common case.

llvm-svn: 108101
 2010-07-11 20:36:29 +00:00
Chris Lattner
656c2c8700 fix typo 
llvm-svn: 108100
 2010-07-11 19:42:53 +00:00