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1208 Commits

Author SHA1 Message Date
Chris Lattner
cf9082589c no really, don't double count these nodes either! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20837 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-25 20:54:45 +00:00
Chris Lattner
0423e031d6 Don't count all of the nodes in the SCC once for each function in the SCC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20836 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-25 20:37:32 +00:00
Chris Lattner
33b4276053 Grow the EQ classes for globals at the end of the BU pass. This shrinks 
memory usage in the TD pass for 254.gap from 31.3MB to 3.9MB.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20834 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-25 16:45:43 +00:00
Chris Lattner
2958eeabcf Treat free operations as volatile, since they cannot be moved. This fixes 
Transforms/LICM/2005-03-24-LICM-Aggregate-Crash.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20830 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-25 05:49:37 +00:00
Chris Lattner
20da24c4b9 remove a debugging timer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20827 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-25 00:06:09 +00:00
Chris Lattner
b2dbdc1301 Two changes here: 
1. Instead of copying Local graphs to the BU graphs to start with, use
     spliceFrom to do the job (which is constant time in this case).  On
     176.gcc, this chops off .17s from the bu pass.
  2. When building SCC graphs, simplify the logic and use spliceFrom to
     do the heavy lifting, instead of cloneInto/delete.  This slices
     another .14s off 176.gcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20826 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-25 00:05:04 +00:00
Chris Lattner
ce7068d378 Make the spliceFrom case where one graph is completely empty be constant time. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20825 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-25 00:02:41 +00:00
Chris Lattner
5734e4331e add a new DSGraph::spliceFrom method, which violently takes the content of 
one graph and plops it into another, without breaking a sweat.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20824 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 23:46:04 +00:00
Chris Lattner
4da120e5d6 This replaces the correct but slow code with a more aggressive scc-finder 
based approach to find globals and call sites that need to be copied.  This
speeds up the BU pass on 176.gcc from 22s back up to 2.3s.  Not as good
as 1.5s, but at least it's correct :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20820 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 23:06:02 +00:00
Chris Lattner
09adbbc99e only look at successors of globals. This gets us down to "only" 22s in the 
bu pass for 176.gcc


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20818 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 21:17:27 +00:00
Chris Lattner
d8642125e4 Unfortunately, a previous patch was not safe. Revert it, reimplement 
something correct. Unfortunately this takes 176.gcc's BU phase back
up to 29s from 1.5.  This fixes DSGraph/2005-03-24-Global-Arg-Alias.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20817 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 21:07:47 +00:00
Chris Lattner
0d397bd437 don't bother |'ing in 0's 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20815 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 18:42:51 +00:00
Chris Lattner
d94b4d5b9c be more aggressive about incompleteness marking 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20814 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 18:42:28 +00:00
Chris Lattner
c5132e65a6 Fix a crash while promoting a value out of a loop from a global variable 
when using ds-aa


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20802 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 04:22:04 +00:00
Chris Lattner
7d671b88e8 teach ds-aa about mod/ref for external function calls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20801 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 03:04:50 +00:00
Chris Lattner
62da315c85 Simplify dead code into a fixme :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20800 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 02:41:19 +00:00
Chris Lattner
c4417f98e5 fix a compiler crash in runtime/libprofile 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20799 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 01:22:52 +00:00
Chris Lattner
f5eaf3c62c wrap a long line 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20797 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 23:51:12 +00:00
Chris Lattner
ec6518ddc2 If we are calling an external function, chain to another AA to potentially 
decide, don't just immediately give up.

This implements GlobalsModRef/chaining-analysis.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20796 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 23:49:47 +00:00
Chris Lattner
8cfd24df54 Make this more efficient by only making one virtual method call. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20793 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 23:26:58 +00:00
Chris Lattner
d433bde071 Make this a bit more aggressive 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20792 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 22:06:41 +00:00
Chris Lattner
65512d2525 a hack to allow count-aa to work with ds-aa :( 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20791 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 21:59:34 +00:00
Chris Lattner
cf9f20189f Add two options to allow -count-aa to print queries either (1) all queries, 
or (2) only queries that are not successful (e.g. return may alias)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20790 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 21:59:07 +00:00
Chris Lattner
c14f59cb72 turn a dead conditional into an assert. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20787 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 20:12:08 +00:00
Chris Lattner
e3f1d8a525 Totally gut mergeInGraph. There is absolutely no reason to be merging 
global roots in from callees to callers.  The BU graphs do not have accurate
globals information and all of the clients know it.  Instead, just make sure
the GG is up-to-date, and they will be perfectly satiated.

This speeds up the BU pass on 176.gcc from 5.5s to 1.5s, and Loc+BU+TD
from 7s to 2.7s.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20786 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 20:08:59 +00:00
Chris Lattner
eb39492deb wrap a long line 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20785 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 16:43:11 +00:00
Chris Lattner
943814bb01 Make -steens-aa more conservative (aka correct) by making sure to obey 
incompleteness flags.

Make it more aggressive by taking field sensitive information into
account.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20781 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 01:48:09 +00:00
Chris Lattner
2f72f9462b implement Analysis/DSGraph/field-sensitive.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20779 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 01:47:19 +00:00
Chris Lattner
1e9d1475bc Several changes here: 
1. Increase max node size from 64->256 to avoid collapsing an important
   structure in 181.mcf
2. If we have multiple calls to an indirect call node with an indirect
   callee, fold these call nodes together, to avoid DSA turning apoc into
   a flaming fireball of death when analyzing 176.gcc.
  With this change, 176.gcc now takes ~7s to analyze for loc+bu+td, with
  5.7s of that in the BU pass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20775 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-22 23:54:52 +00:00
Chris Lattner
9547adef58 Mark external globals incomplete in the BU Globals graph, fixing 
Analysis/DSGraph/2005-03-22-IncompleteGlobal.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20773 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-22 22:10:22 +00:00
Chris Lattner
6ae7e9837c Directly count the number of memory instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20766 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-22 03:55:10 +00:00
Chris Lattner
a513fb127f Remove an iteration pass over the entire scalarmap for each function created 
by not allowing integer constants to get into the scalar map in the first
place.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20764 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-22 02:45:13 +00:00
Chris Lattner
9308a35532 When making a clone of a DSGraph from the BU pass, make sure to remember that 
this clone is supposed to be used for *ALL* of the functions in the SCC.

This fixes the memory explosion problem the TD pass was having, reducing the
memory growth from 24MB -> 3.5MB on povray and 270MB ->8.3MB on perlbmk!
This obviously also speeds up the TD pass *a lot*.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20763 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-22 01:50:42 +00:00
Chris Lattner
3bc703ba22 Don't use operator[], use the new method instead, which is faster. This speeds 
up the TD pass about 30% for povray and perlbmk.  It's still not clear why
copying a 5MB set of graphs turns into a 25MB set of graphs though :(


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20762 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-22 01:42:59 +00:00
Chris Lattner
a2197139b5 Now that the dead ctor is gone, nothing uses the old node mapping exported by 
cloneInto: make it an internally used mapping.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20760 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-22 00:36:51 +00:00
Chris Lattner
5805c426dc remove a dead ctor 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20759 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-22 00:33:35 +00:00
Chris Lattner
d65145bd3d now that the second argument is always this->ReturnNodes, don't bother passing it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20758 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-22 00:29:44 +00:00
Chris Lattner
560af8aa97 instead of using a local RetValMap, just use the graph we are cloning into 
for the return node map.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20757 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-22 00:25:52 +00:00
Chris Lattner
271d6884e3 now that the valuemapping is always the local scalar map, we can eliminate 
this identity merge.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20755 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-22 00:22:45 +00:00
Chris Lattner
3c920fa861 remove the second argument to cloneInto 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20754 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-22 00:21:05 +00:00
Chris Lattner
24c47c5c45 add some timers, don't clone aux nodes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20752 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-22 00:12:00 +00:00
Chris Lattner
612f0b74d4 move this out of line 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20751 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-22 00:09:45 +00:00
Chris Lattner
7080c3e54e don't generate temporary scalarmaps. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20749 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-22 00:04:21 +00:00
Chris Lattner
f09ecffa0d allow passing clone flags down to cloneInto 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20748 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-21 22:49:53 +00:00
Chris Lattner
275b301740 Enhance the TD pass to build composite graphs when we have indirect call 
sites that target multiple callees.  If we have a function table, for
example, with N callees, and M callers call through it, we used to have
to perform O(M*N) graph inlinings.  Now we perform O(M+N) inlinings.

This speeds up the td pass on perlbmk from 36.26s to 25.75s.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20743 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-21 20:31:29 +00:00
Chris Lattner
b3439374ac make this const correct 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20741 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-21 20:28:50 +00:00
Chris Lattner
eb144f5e73 Fix a major problem where we didn't add call graph edges for call sites with 
more than 1 callee.  This fixes Analysis/DSGraph/FunctionPointerTable-const.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20740 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-21 20:20:49 +00:00
Chris Lattner
c26f6d3899 Ugh, for some reason, I can't call this unless the reference is const!?!?!? 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20732 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-21 10:00:45 +00:00
Chris Lattner
3f90a94c5d The reachability cloner should add arguments to merged calls when the RHS of 
the merge has more operands than the LHS.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20731 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-21 09:39:51 +00:00
Chris Lattner
c2b94805fb 'note to self' 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20727 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-21 08:43:32 +00:00