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Author SHA1 Message Date
Owen Anderson
371d68958f Get rid of unnecessary #include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40885 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-07 00:38:16 +00:00
Owen Anderson
dbbe816757 Clean up a bunch of caching stuff in memdep. This reduces the time to run GVN 
on 403.gcc from ~15s to ~10s.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40884 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-07 00:33:45 +00:00
Devang Patel
fee76bd9ba Begin loop index split pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40883 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-07 00:25:56 +00:00
Owen Anderson
8f35315798 Improve the accuracy of memdep for determining the dependencies of loads. 
This brings GVN to parity with GCSE+LoadVN.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40882 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 23:26:03 +00:00
Dale Johannesen
9989a65693 Replace 4-line function with 10-line version per review comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40881 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 22:10:35 +00:00
Chris Lattner
6f427580e0 remove #if 0 code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40880 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 22:03:19 +00:00
Chris Lattner
731a5f1f94 remove #if 0 code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40879 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 22:01:53 +00:00
Dale Johannesen
27f92be8b7 Move lengthy conditional down 1 level per review comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40878 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 21:48:35 +00:00
Dale Johannesen
6a30811d5c Get X86 long double calling convention to work 
(on Darwin, anyway).  Fix some table omissions for
LD arithmetic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40877 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 21:31:06 +00:00
Chris Lattner
0275cffa97 regenerate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40875 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 21:00:46 +00:00
Chris Lattner
6df20efcc3 Fix PR1577, a crash on invalid bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40874 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 21:00:37 +00:00
Chandler Carruth
a583990ec8 This resolves a regression of BasicAA which failed to find any memory information for overloaded intrinsics (PR1600). This resolves that issue, and improves the matching scheme to use a BitVector rather than a binary search. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40872 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 20:57:16 +00:00
Chandler Carruth
b1183c1ff3 This fixes resizing issues with BitVectors. It ensures that the BitWord type and type size is always used, and ensures completely correct clearing of unused high bits, and setting of bits when resizing. It should resolve PR1563. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40871 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 20:52:17 +00:00
Nick Lewycky
f947b3edb5 It's safe to fold not of fcmp. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40870 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 20:04:16 +00:00
Nick Lewycky
450770de65 Fix the dates on these tests. It's not September yet. Thanks Reid! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40869 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 20:00:11 +00:00
Dale Johannesen
88835735f4 Make 80-bit store maintain simulated FP stack correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40868 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 19:50:32 +00:00
Nick Lewycky
d6dac0eebc Let scalar-evolution analyze loops with an unsigned comparison for the exit 
condition. Fixes 1597.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40867 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 19:21:00 +00:00
Nick Lewycky
06323bfe03 Don't assume it's safe to transform a loop just because it's dominated by any 
comparison. Fixes bug 1598.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40866 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 18:33:46 +00:00
Reid Spencer
7409cabc3e @verbatim needs to be on a line by itself. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40865 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 17:10:29 +00:00
Chris Lattner
914ce4508d Fix a regression compiling 2005-05-11-Popcount-ffs-fls with the CBE, 
introduced by chandler's patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40864 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 16:36:18 +00:00
Christopher Lamb
98363225a3 Implement review feedback. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40863 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 16:33:56 +00:00
David Greene
242be6e0ff Make this code more efficient. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40861 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 15:09:17 +00:00
Chris Lattner
3589df8013 remove some dead lines 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40859 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 06:21:06 +00:00
Chris Lattner
7ed54a0ece 1. Random tidiness cleanups 
2. Make domtree printing print dfin/dfout #'s
3. Fix the Transforms/LoopSimplify/2004-04-13-LoopSimplifyUpdateDomFrontier.ll failure from last night (in DominanceFrontier::splitBlock).

w.r.t. #3, my patches last night happened to expose the bug, but this 
has been broken since Owen's r35839 patch to LoopSimplify.  The code
was subsequently moved over from LoopSimplify into Dominators, carrying
the latent bug.  Fun stuff.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40858 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 06:19:47 +00:00
Chris Lattner
947596c351 update for new domtree dump format 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40857 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 06:17:08 +00:00
Chris Lattner
c385ae6ff5 Various random cleanups, add two accessors to DomTreeNode: getDFSNumIn/getDFSNumOut 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40856 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 06:15:43 +00:00
Reid Spencer
944b7f28ac Update links to the command guide generated documentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40855 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-05 23:43:44 +00:00
Reid Spencer
181b6c9cb5 Fix minor doxygen nits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40854 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-05 20:06:04 +00:00
Reid Spencer
0713ca4255 Comment out configuration tags not supported by doxygen 1.3.9 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40853 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-05 19:51:03 +00:00
Reid Spencer
f094f81d36 Document a missing parameter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40852 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-05 19:36:39 +00:00
Reid Spencer
81a7572f1a Silence some warnings from doxygen about @param argument name not matching the 
actual argument name of the documented function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40851 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-05 19:35:22 +00:00
Reid Spencer
c69b0dd19d Escape some escapes that confuse doxygen. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40850 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-05 19:33:11 +00:00
Reid Spencer
daa10a46b2 Fix a doxygen directive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40849 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-05 19:27:01 +00:00
Dale Johannesen
59a587337e Long double patch 4 of N: initial x87 implementation. 
Lots of problems yet but some simple things work.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40847 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-05 18:49:15 +00:00
Chris Lattner
3038778c1e allow this to pass on ppc hosts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40846 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-05 18:48:18 +00:00
Chris Lattner
e76fad2ceb shorten this name 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40843 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-05 18:45:33 +00:00
Chris Lattner
a9ff5eb76e at the end of instcombine, explicitly clear WorklistMap. 
This shrinks it down to something small.  On the testcase
from PR1432, this speeds up instcombine from 0.7959s to 0.5000s,
(59%)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40840 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-05 08:47:58 +00:00
Chris Lattner
7b54452c84 Fix a bug in DenseMap::clear, where we never reset a tombstone 
to EmptyKey.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40839 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-05 08:43:36 +00:00
Chris Lattner
8c5287086c Upgrade BasicAliasAnalysis::getModRefBehavior to not call Value::getName, 
which dynamically allocates the string result.  This speeds up dse on the
testcase from PR1432 from 0.3781s to 0.1804s (2.1x).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40838 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-05 07:50:06 +00:00
Chris Lattner
42e4bdf257 When clearing a SmallPtrSet, if the set had a huge capacity, but the 
contents of the set were small, deallocate and shrink the set.  This
avoids having us to memset as much data, significantly speeding up
some pathological cases.  For example, this speeds up the verifier
from 0.3899s to 0.0763 (5.1x) on the testcase from PR1432 in a 
release build.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40837 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-05 07:32:14 +00:00
Chris Lattner
a31965301d Fix an iterator invalidation bug I induced. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40830 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-05 00:24:30 +00:00
Chris Lattner
2f0d1ea864 Switch some std::sets to SmallPtrSet. This speeds up 
domtree by 10% and postdomtree by 17%


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40829 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-05 00:15:57 +00:00
Chris Lattner
7ae8c4c810 Switch DomTreeNode::assignDFSNumber from using a std::set to using 
a smallptrset.  This speeds up domtree by about 15% and postdomtree by 20%.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40828 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-05 00:10:08 +00:00
Chris Lattner
e93e311981 Switch the internal "Info" map from an std::map to a DenseMap. This 
speeds up idom by about 45% and postidom by about 33%.

Some extra precautions must be taken not to invalidate densemap iterators.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40827 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-05 00:02:00 +00:00
Chris Lattner
0a5f83c22c switch the DomTreeNodes and IDoms maps in idom/postidom to a 
DenseMap instead of an std::map.  This speeds up postdomtree
by about 25% and domtree by about 23%.  It also speeds up clients,
for example, domfrontier by 11%, mem2reg by 4% and ADCE by 6%.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40826 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-04 23:48:07 +00:00
Chris Lattner
f12f8def39 rewrite the code used to construct pruned SSA form with the IDF method. 
In the old way, we computed and inserted phi nodes for the whole IDF of 
the definitions of the alloca, then computed which ones were dead and
removed them.

In the new method, we first compute the region where the value is live,
and use that information to only insert phi nodes that are live.  This
eliminates the need to compute liveness later, and stops the algorithm
from inserting a bunch of phis which it then later removes.

This speeds up the testcase in PR1432 from 2.00s to 0.15s (14x) in a
release build and 6.84s->0.50s (14x) in a debug build.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40825 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-04 22:50:14 +00:00
Chris Lattner
0ec8df3d5f Factor out a whole bunch of code into it's own method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40824 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-04 21:14:29 +00:00
Chris Lattner
127ed3c929 Use getNumPreds(BB) instead of computing them manually. This is a very small but 
measurable speedup.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40823 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-04 21:06:15 +00:00
Chris Lattner
1e76af3011 Change the rename pass to be "tail recursive", only adding N-1 successors 
to the worklist, and handling the last one with a 'tail call'.  This speeds
up PR1432 from 2.0578s to 2.0012s (2.8%)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40822 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-04 20:40:27 +00:00
Chris Lattner
e7b653dabe cache computation of #preds for a BB. This speeds up 
mem2reg from 2.0742->2.0522s on PR1432.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40821 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-04 20:24:50 +00:00