Commit Graph

461 Commits

Author SHA1 Message Date
Chris Lattner 461310139a In the TD pass, don't iterate over the scalar map to find the globals, iterate over
the globals directly.  This doesn't save any substantial time, however, because the
globals graph only contains globals!

llvm-svn: 10997
2004-01-28 03:07:30 +00:00
Chris Lattner 63c649a9fa In updateFromGlobalsGraph, instead of iterating over all of the scalars in the
function to find the globals, iterate over all of the globals directly.  This
speeds the function up from 14s to 6.3s on perlbmk, reducing DSA time from
53->46s.

llvm-svn: 10996
2004-01-28 03:03:06 +00:00
Chris Lattner 06a40fc140 Minor tweaks, eliminate useless integer pruning optimziation, turn on
timers by default

llvm-svn: 10993
2004-01-28 02:41:32 +00:00
Chris Lattner 9f0f7ca74e Further reduce the number of nodes cloned with getClonedNH, using merge instead.
This reduces the number of nodes allocated, then immediately merged and DNE'd
from 2193852 to 1298049.  unfortunately this only speeds DSA up by ~1.5s (of
53s), because it's spending most of its time waddling through the scalar map :(

llvm-svn: 10992
2004-01-28 02:11:49 +00:00
Chris Lattner 6ee2b154d4 Add a timer, fix a minor bug.
Also, use RC::merge when possible, reducing the number of nodes allocated, then immediately merged away from 2985444 to 2193852 on perlbmk.

llvm-svn: 10991
2004-01-28 02:05:05 +00:00
Chris Lattner f6f97f9f90 Another bugfix, disable "spurious" output.
You gotta love spurious

llvm-svn: 10990
2004-01-28 01:19:52 +00:00
Chris Lattner 26acc890f9 fix bug in previous checkin
llvm-svn: 10989
2004-01-27 22:54:56 +00:00
Chris Lattner 54a52e53f0 * Add a new commandline argument to control the "global roots hack". Default
it to be off.  If it looks like it's completely unnecessary after testing, I
  will remove it completely (which is the hope).
* Callers of the DSNode "copy ctor" can not choose to not copy links.
* Make node collapsing not create a garbage node in some cases, avoiding a
  memory allocation, and a subsequent DNE.
* When merging types, allow two functions of different types to be merged
  without collapsing.
* Use DSNodeHandle::isNull more often instead of DSNodeHandle::getNode() == 0,
  as it is much more efficient.
*** Implement the new, more efficient reachability cloner class
    In addition to only cloning nodes that are reachable from interesting
    roots, this also fixes the huge inefficiency we had where we cloned lots
    of nodes, only to merge them away immediately after they were cloned.
    Now we only actually allocate a node if there isn't one to merge it into.
* Eliminate the now-obsolete cloneReachable* and clonePartiallyInto methods
* Rewrite updateFromGlobalsGraph to use the reachability cloner
* Rewrite mergeInGraph to use the reachability cloner
* Disable the scalar map scanning code in removeTriviallyDeadNodes.  In large
  SCC's, this is extremely expensive.  We need a better data structure for the
  scalar map, because we really want to scan the unique node handles, not ALL
  of the scalars.
* Remove the incorrect SANER_CODE_FOR_CHECKING_IF_ALL_REFERRERS_ARE_FROM_SCALARMAP code.
* Move the code for eliminating integer nodes from the trivially dead
  eliminator to the dead node eliminator.
* removeDeadNodes no longer uses removeTriviallyDeadNodes, as it contains a
  superset of the node removal power.
* Only futz around with the globals graph in removeDeadNodes if it is modified

llvm-svn: 10987
2004-01-27 22:03:40 +00:00
Chris Lattner 070afeb77b Rewrite to use the reachability cloner interface. Also, make this much more
efficient in the case where a function calls into the same graph multiple times
(ie, it either contains multiple calls to the same function, or multiple calls
to functions in the same SCC graph)

llvm-svn: 10986
2004-01-27 21:53:14 +00:00
Chris Lattner 0e43b44c31 minor cleanups
llvm-svn: 10985
2004-01-27 21:51:19 +00:00
Chris Lattner b529730af0 Get clone flags right, so we don't build InlinedGlobals only to clear them
llvm-svn: 10984
2004-01-27 21:50:41 +00:00
Chris Lattner 78c36d2112 Initial support for implementing clonePartiallyInto in terms of cloneReachableSubgraph, though this support is currently disabled.
llvm-svn: 10970
2004-01-23 01:44:53 +00:00
Chris Lattner 80f89ea522 Eliminated the CompletedNodes argument to the cloneReachable* methods. This
map was only used to implement a marginal GlobalsGraph optimization, and it
actually slows the analysis down (due to the overhead of keeping it), so just
eliminate it entirely.

llvm-svn: 10955
2004-01-22 16:56:13 +00:00
Chris Lattner 5750d46ccd Ok, I'm tired of pulling out all my timers to check stuff in, just do it.
llvm-svn: 10954
2004-01-22 16:36:28 +00:00
Chris Lattner 2a0bc1224d Bug fix: X.mergeWith(Y) was not updating Y if Y was a null node handle!
llvm-svn: 10953
2004-01-22 16:31:08 +00:00
Chris Lattner e75ae61b47 Start implementing DSGraph::clonePartiallyInto and implement mergeInGraph
in terms of it.

Though clonePartiallyInto is not cloning partial graphs yet, this change
dramatically speeds up inlining of graphs with many scalars.  For example,
this change speeds up the BU pass on 253.perlbmk from 69s to 36s, because
it avoids iteration over the scalar map, which can get pretty large.

llvm-svn: 10951
2004-01-22 15:30:58 +00:00
Chris Lattner 45fd9d59c0 Allow disabling of ALL printing overhead when performing timings
llvm-svn: 10948
2004-01-22 13:42:43 +00:00
Chris Lattner 567444309a Do not depend on index type to determine whether it is a structure or sequential index
llvm-svn: 10221
2003-11-25 20:19:55 +00:00
Chris Lattner ab6895ea76 Implement a small optimization to handling of GEP's that are equivalent to casts.
This results in substantially reduced collapsing for some testcases

llvm-svn: 10002
2003-11-14 17:09:46 +00:00
Chris Lattner a8150c3f8d Trying to get the dsgraph for an external function is bad for DSA's health
llvm-svn: 9979
2003-11-13 18:48:11 +00:00
Chris Lattner baef234ce3 Implement the CompleteBU pass
llvm-svn: 9964
2003-11-13 05:05:41 +00:00
Chris Lattner 71d3377010 Minor code cleanup
llvm-svn: 9962
2003-11-13 05:04:19 +00:00
Chris Lattner fb4c057c4c Disable integer tracking by default
llvm-svn: 9960
2003-11-13 03:10:49 +00:00
Chris Lattner 04946381b9 Add an initial version of the CompleteBUDataStructures class, which is currently
identical to the BU pass, but has an accurate call graph

llvm-svn: 9956
2003-11-13 01:43:00 +00:00
Chris Lattner 9e876556fd Fine-grainify namespaces for this library
llvm-svn: 9948
2003-11-12 23:11:14 +00:00
Chris Lattner da03a8a792 Add new argument to disable checking
llvm-svn: 9922
2003-11-12 17:58:22 +00:00
Chris Lattner b740afb2b0 Print return nodes for graphs with multiple functions in them correctly
llvm-svn: 9914
2003-11-12 04:58:19 +00:00
Chris Lattner 12c71c00ef Don't crash if no gg
llvm-svn: 9913
2003-11-12 04:57:58 +00:00
Brian Gaeke 960707c335 Put all LLVM code into the llvm namespace, as per bug 109.
llvm-svn: 9903
2003-11-11 22:41:34 +00:00
Chris Lattner da05b05197 Compute node offsets correctly
llvm-svn: 9895
2003-11-11 20:12:32 +00:00
Chris Lattner fdc8d6547b Add new method for computing node mappings. This is used by the pool allocator
llvm-svn: 9880
2003-11-11 05:08:59 +00:00
Chris Lattner cff83a2f24 Add support for memmove
llvm-svn: 9824
2003-11-09 03:32:52 +00:00
Chris Lattner 12dd38aa99 Handle bzero and memset in the local analysis, because we were missing the fact
that memset returns its argument!!

llvm-svn: 9811
2003-11-08 21:55:50 +00:00
Chris Lattner 2cb1db763e This doesn't use DSCallSiteIterator
llvm-svn: 9809
2003-11-08 21:17:37 +00:00
Chris Lattner 2b9926fc8e All DSGraphs keep a reference to the targetdata they are created with. This is
used to eliminate the hard coded, hacked in, sparc specific, global TargetData.
Changing the TargetData used to actually match the code fixes problems, and
eliminates a crash.

llvm-svn: 9659
2003-11-02 22:27:28 +00:00
Chris Lattner 53e8fab411 Fix bug: test/Regression/Analysis/DSGraph/2003-11-02-NodeCollapsing.ll
llvm-svn: 9658
2003-11-02 21:02:20 +00:00
John Criswell 29265fe981 Added LLVM copyright header.
llvm-svn: 9321
2003-10-21 15:17:13 +00:00
John Criswell 4436c49787 Added LLVM copyright notice to Makefiles.
llvm-svn: 9312
2003-10-20 22:26:57 +00:00
John Criswell 482202a601 Added LLVM project notice to the top of every C++ source file.
Header files will be on the way.

llvm-svn: 9298
2003-10-20 19:43:21 +00:00
Alkis Evlogimenos 6e739d0a3c Use std::string::size_type for for ColonPos to stop gcc from giving a warning
llvm-svn: 8811
2003-10-01 22:49:22 +00:00
Chris Lattner 66a473371f DOn't crash if program calls the null pointer
llvm-svn: 8708
2003-09-24 23:42:58 +00:00
Chris Lattner 3c095c79fa Functions reachable from the arguments of unresolvable call nodes should
not have their arguments marked complete

llvm-svn: 8639
2003-09-20 23:58:33 +00:00
Chris Lattner 413b7bde7c The Globals graph must become complete at the end of the BU phase!
llvm-svn: 8638
2003-09-20 23:27:05 +00:00
Chris Lattner 880b9aa10a Do not mark incoming arguments to functions complete if the function is pointed to by a global in the globals graph
llvm-svn: 8637
2003-09-20 22:24:04 +00:00
Chris Lattner 8c1a835806 Make sure to add global variable initializers to the Globals graph!
llvm-svn: 8636
2003-09-20 21:48:16 +00:00
Chris Lattner 71f747ea3d Don't consider incomplete nodes to be typesafe!
llvm-svn: 8635
2003-09-20 21:48:01 +00:00
Chris Lattner cc81b798e4 Remove trivially dead nodes was not removing nodes that were dead due to forwarding!
llvm-svn: 8634
2003-09-20 21:34:07 +00:00
Chris Lattner 689b681558 Add special case handling for calloc and realloc
llvm-svn: 8630
2003-09-20 16:50:46 +00:00
Chris Lattner 04d9cb6770 Switch from using CallInst's to represent call sites to using the LLVM
CallSite class.  Now we can represent function calls by invoke instructions
too!

llvm-svn: 8629
2003-09-20 16:34:13 +00:00
Chris Lattner 36b877ae7f Make this work better for constants that aren't necessarily in ANY graph, such as null pointers
llvm-svn: 8628
2003-09-20 16:12:57 +00:00
Chris Lattner b1fcb2b644 Keep track of the number of typed/untyped memory accesses theyre are in the program
VS: ----------------------------------------------------------------------

llvm-svn: 8611
2003-09-20 01:20:46 +00:00
Misha Brukman 329983228f Fixed spelling and grammar.
llvm-svn: 8478
2003-09-11 18:14:24 +00:00
Chris Lattner 61182a2021 Add more verbose comment
llvm-svn: 7610
2003-08-05 18:38:37 +00:00
Sumant Kowshik 1d869b78f5 Added function mergeInGlobalsGraph which merges in the entire globals graph with the graph of a function
llvm-svn: 7606
2003-08-05 17:04:41 +00:00
Chris Lattner 8abcd56c74 DEBUG got moved to Support/Debug.h
llvm-svn: 7492
2003-08-01 22:15:03 +00:00
Chris Lattner 1cde34a7ff Fix another minor bug
llvm-svn: 7340
2003-07-26 23:00:05 +00:00
Chris Lattner d504c33746 Dont' try to parse the colon
llvm-svn: 7323
2003-07-25 20:49:29 +00:00
Chris Lattner 39e89fe443 Add a more general check-flags which can be used to ensure arbitrary flags are set
llvm-svn: 7322
2003-07-25 20:45:40 +00:00
Vikram S. Adve eb04c29378 Fix comment.
llvm-svn: 7227
2003-07-22 12:08:58 +00:00
Brian Gaeke c55a920283 Fix typo in call to isUnresolvableFunc, which was breaking the build.
llvm-svn: 7194
2003-07-17 19:07:46 +00:00
Vikram S. Adve cf01ed5f75 Rematerialize nodes from the globals graph into the current graph
after all callees are inlined into the current graph.

NOTE: There's also a major bug fix for the BU pass in DataStructure.cpp,
which ensures that resolvable indirect calls are not moved out to the
globals graph, so that they are eventually inlined (if possible).

llvm-svn: 7189
2003-07-16 21:42:03 +00:00
Vikram S. Adve 03be4a96f3 (1) Rematerialize nodes from the globals graph into the current graph
after all callers are inlined into the current graph.
(2) Optimize the way a graph is inlined into its callees in the TD phase:
    (a) Use DSGraph::cloneReachableSubgraph to clone only a subgraph at
        each call site, for faster inlining.
    (b) Clone separately for the same callee at different call sites,
        since only the reachable subgraph is being cloned, not the entire
        caller graph.

llvm-svn: 7188
2003-07-16 21:40:28 +00:00
Vikram S. Adve dce6694ff4 Implement 2 important changes: (1) rematerialization from the globals graph,
and (2) faster inlining by cloning only reachable nodes.  In particular:
(1) Added DSGraph::cloneReachableSubgraph and DSGraph::cloneReachableNodes
    to clone the subgraph reachable from a set of root nodes, into the
    current graph, merging the global nodes into thos in the current graph.
    The TD pass now uses this for faster inlining, and so does the
    next function.
(2) Added DSGraph::updateFromGlobalGraph() to rematerialize nodes from the
    globals graph into the current graph in both BU and TD passes.
(3) `I' flags are removed from all nodes in the globals graph, because they
    are difficult to maintain correctly and are not needed anyway.
(4) Aux. function calls are only removed to the globals graph if they
    will never be resovled.  (This is what fixed gap.)  The immediate
    reason is that if we took these out of a function (and moved them to
    the globals graph) we would need to rematerialize these nodes into the
    function graph for every function in the BU pass.  The longer term
    problem is that we would need to find a way to remove them from the
    globals graph iff they have been resolved on all paths through the
    call graph.

llvm-svn: 7187
2003-07-16 21:36:31 +00:00
Vikram S. Adve 6c254f0534 Factor out the test for unresolvable external functions into
isUnresolvableFunc() (I thought I needed this externally.
I don't, but it's still nicer this way.)

llvm-svn: 7186
2003-07-16 21:25:17 +00:00
Chris Lattner 117da20334 Remove globals more aggressively from graphs.
Fix a bug where we removed nodes that were marked U.

llvm-svn: 7090
2003-07-03 02:03:53 +00:00
Chris Lattner c812e5f44e INCLUDE_PARENT_GRAPH is required!
llvm-svn: 7088
2003-07-02 23:57:05 +00:00
Chris Lattner 9a75369b74 Disable incorrect mustalias code
llvm-svn: 7087
2003-07-02 23:56:51 +00:00
Chris Lattner 959177fb96 Remove space at end of line
llvm-svn: 7084
2003-07-02 23:44:15 +00:00
Chris Lattner 7fd198806a Fix how we are handling unreachable functions. This DRAMATICALLY improves efficiency
llvm-svn: 7082
2003-07-02 23:42:48 +00:00
Chris Lattner cd7482b354 Keep track of how many inlinings are performed
llvm-svn: 7076
2003-07-02 20:24:42 +00:00
Chris Lattner d3d5c5c98e Try using trivially dead deletion
llvm-svn: 7075
2003-07-02 19:49:11 +00:00
Chris Lattner ad7b9c1810 Remove dead Nodes list
llvm-svn: 7065
2003-07-02 06:06:34 +00:00
Chris Lattner 116f68a990 Complete rewrite of td pass
llvm-svn: 7064
2003-07-02 04:39:44 +00:00
Chris Lattner 049d558988 Print collapsed to match the paper
llvm-svn: 7063
2003-07-02 04:39:27 +00:00
Chris Lattner 0b61cdd191 Reduce amount of work we do calculating mustaliases if the arg is a global
llvm-svn: 7062
2003-07-02 04:39:13 +00:00
Chris Lattner 03f3cb1af7 Add support for ParentGraph only when building in debug mode
Minor cleanups, reenable folding of call nodes to external functions

llvm-svn: 7061
2003-07-02 04:38:49 +00:00
Chris Lattner db6e0ac800 Add some functions to the blacklist
llvm-svn: 7060
2003-07-02 04:38:00 +00:00
Chris Lattner 5a3d63d5aa Make the BU closure keep track of which actual calls happen
Minor cleanups

llvm-svn: 7059
2003-07-02 04:37:48 +00:00
Chris Lattner 3ff99e3731 Make local pass print out its progress
llvm-svn: 7058
2003-07-02 04:37:26 +00:00
Chris Lattner 23428214e9 Rework TD pass to work with the precise call graph constructed by the BU phase
llvm-svn: 7031
2003-07-01 16:28:11 +00:00
Chris Lattner e809e3afd8 Do not treat global variables as functions! (and assert failing)
llvm-svn: 7030
2003-07-01 16:27:53 +00:00
Chris Lattner 8a30ad6d89 Dont' print scalar nodes for ConstantPointerRefs
llvm-svn: 7029
2003-07-01 16:27:32 +00:00
Chris Lattner 269467d216 Minor cleanups
llvm-svn: 7027
2003-07-01 16:04:18 +00:00
Chris Lattner 70923c688d Use the getFunctionNames method
llvm-svn: 7008
2003-06-30 05:57:39 +00:00
Chris Lattner bfce1115e3 Add new method
llvm-svn: 7007
2003-06-30 05:57:30 +00:00
Chris Lattner f8865a4389 Split CallSiteIterator out into DSCallSiteIterator.h, and generalize it a bit
llvm-svn: 7006
2003-06-30 05:27:53 +00:00
Chris Lattner fa52af4fb0 Be more const-correct
llvm-svn: 7005
2003-06-30 05:27:18 +00:00
Chris Lattner 0929c5ef68 Fix bug in last checkin
llvm-svn: 7003
2003-06-30 05:18:26 +00:00
Chris Lattner 4ffb4e0e03 Reimplement the BU closure to collapse all SCC graphs into a single graph.
Look at all of the code that gets deleted!

llvm-svn: 7001
2003-06-30 05:09:58 +00:00
Chris Lattner 348d93c8c2 Handle the case where OldNodeMap == &ScalarMap correctly
llvm-svn: 7000
2003-06-30 05:09:29 +00:00
Chris Lattner 312783f0d2 Remove dead method
llvm-svn: 6999
2003-06-30 04:53:39 +00:00
Chris Lattner 01877f5224 Do not delete the same graph multiple times when freeing memory if graphs are sharing
llvm-svn: 6998
2003-06-30 04:53:27 +00:00
Chris Lattner 7695128217 Do not multiply delete graphs if functions are sharing graphs
llvm-svn: 6997
2003-06-30 04:53:08 +00:00
Chris Lattner 6d187fdc5a Move usages of explicit hash_* datastructures to use typedefs
llvm-svn: 6996
2003-06-30 03:36:09 +00:00
Chris Lattner 63aeacfe3d Revamp DSGraphs so that they can support multiple functions in the same
DSGraph at one time

llvm-svn: 6994
2003-06-30 03:15:25 +00:00
Chris Lattner 7e29f97d1d Abstract out the predicate which decides whether a function gets complete
arguments or not...

llvm-svn: 6987
2003-06-29 22:37:07 +00:00
Chris Lattner 205d1acfba Fix minor bug in previous checkin
llvm-svn: 6986
2003-06-29 22:36:31 +00:00
Chris Lattner 992abdae26 Add support for ensuring that nodes are not incomplete
llvm-svn: 6985
2003-06-29 22:36:15 +00:00
Chris Lattner 16e3c398c8 Add support for "physical subtyping", which fixes:
DSGraph/2003-06-29-NodeCollapsing2.ll & DSGraph/PhysicalSubtyping.ll

llvm-svn: 6982
2003-06-29 20:27:45 +00:00
Chris Lattner 0aca3e714f Add print method to not get silly warning from analyze
llvm-svn: 6981
2003-06-29 20:27:16 +00:00
Chris Lattner 5da440b239 New pass which is useful for writing regression tests
llvm-svn: 6979
2003-06-29 18:17:07 +00:00
Chris Lattner 0877def4f6 Expose must alias information for global variables, implementing: DSGraph/mustalias.ll
llvm-svn: 6973
2003-06-29 00:54:08 +00:00
Chris Lattner fa578d0eb4 Propagate globals graph from the local to bu to td globals graphs. This
fixes bug: DSGraph/buglobals.ll

llvm-svn: 6947
2003-06-28 22:14:55 +00:00
Chris Lattner c7ba69d8b4 Drop references to globals who do exist in the globals graph, but are never
read or written to.  Keep track of how many times this happens.  This should
be good for deleting things like references to type information in C++ classes

llvm-svn: 6946
2003-06-28 22:10:58 +00:00
Chris Lattner 856a6cbb80 Avoid double negatives
llvm-svn: 6945
2003-06-28 21:58:28 +00:00
Chris Lattner 2890f428a9 New pass to perform DSA based optimizations. Initially we just support turning
globals into constants if we can prove it's safe

llvm-svn: 6941
2003-06-28 21:54:55 +00:00
Chris Lattner d791d8e427 Remove support for the MultiObject flag, which was fundamentally broken
llvm-svn: 6840
2003-06-22 03:03:52 +00:00
Chris Lattner 4853d162af * Changes to make NodeType be private to DSNode.
* Add new MultiObject flag to DSNode which keeps track of whether or not
  multiple objects have been merged into the node, allowing must-alias info
  to be tracked.

llvm-svn: 6794
2003-06-19 21:15:11 +00:00
Chris Lattner 3937726a5b Nodes get forwarded when they are collapsed currently.
llvm-svn: 6696
2003-06-16 12:08:18 +00:00
Chris Lattner 82f4f85f6d Remove bogus assertion: a node with no referrers could be collapsed if field-sensitivity was disabled
llvm-svn: 6695
2003-06-16 12:07:39 +00:00
Misha Brukman e5838c4d72 s/convertable/convertible/g
llvm-svn: 6248
2003-05-20 18:45:36 +00:00
Chris Lattner c12e5ccdb5 Don't apply type information to load instructions if it will cause collapsing
llvm-svn: 5684
2003-03-03 17:13:31 +00:00
Chris Lattner e79b8319a6 Adjust to implement new AA interface
llvm-svn: 5638
2003-02-26 19:29:36 +00:00
Chris Lattner b39d6355e1 Fix resolution of indirect function calls... whoops
llvm-svn: 5576
2003-02-14 23:27:18 +00:00
Chris Lattner b5cbfa0f15 Mark function edges
llvm-svn: 5571
2003-02-14 20:25:47 +00:00
Chris Lattner 8acdca64fd - Eliminate provably non-pointer nodes from graphs.
This helps a lot of testcases, for example:
            New Time  New #Nodes     Old Time    Old #Nodes
254.gap:    91.1024     21605        91.1397     22657
povray31:    2.7807      8613         3.0152     10338
255.vortex:  1.2034      8153         1.2172     8822
moria:        .6756      3150          .7054     3877
300.twolf:    .1652      2010          .1851     3270

Typically, testcases which use long and ulong integers a lot get better, f.e. povray above.

llvm-svn: 5566
2003-02-14 06:28:00 +00:00
Chris Lattner ddd3b7fa54 Don't put integer pointers (longs) into the scalar map.
This speeds stuff up by 10% on some tests, woot!

llvm-svn: 5564
2003-02-14 04:55:58 +00:00
Chris Lattner 3699ef409c Hax0r around a deficiency in the Pass infrastructure
llvm-svn: 5555
2003-02-13 21:44:18 +00:00
Chris Lattner 60ede774af Use the new tailclip property new added to graphviz CVS to make call nodes
actually intelligable

llvm-svn: 5554
2003-02-13 20:14:40 +00:00
Chris Lattner a17866894a Move node forwarding code from being inlined to being out-of-line.
This brings a 11.6% speedup to steens, and a 3.6 overall speedup to ds-aa

llvm-svn: 5552
2003-02-13 19:09:00 +00:00
Chris Lattner 7127d7db7a Implement a "union-findy" version of DS-Analysis, which eliminates the
Referrers list on DSNodes.

llvm-svn: 5536
2003-02-11 23:11:51 +00:00
Chris Lattner 763502671d Minor tweaks to printing. Close the file before viewing it in viewGraph
llvm-svn: 5535
2003-02-11 19:27:27 +00:00
Chris Lattner e715357909 Modest speedup which seems to help steens quite a bit on large graphs
llvm-svn: 5532
2003-02-10 18:47:23 +00:00
Chris Lattner f8292feb04 Fix problem breaking GAP, use hasNoReferrers more
llvm-svn: 5530
2003-02-10 18:18:18 +00:00
Chris Lattner 75007f16de Implement a new "viewGraph" method which can be used to instantly view a graph from gdb
llvm-svn: 5528
2003-02-10 18:17:07 +00:00
Chris Lattner b96f2123ab Rearrange code
llvm-svn: 5527
2003-02-10 18:16:36 +00:00
Chris Lattner 5153d44a91 Fix problem breaking Fhourstones
llvm-svn: 5526
2003-02-10 18:16:19 +00:00
Chris Lattner df2a78e833 Make steensgaards performance not shameful
llvm-svn: 5524
2003-02-10 00:14:57 +00:00
Chris Lattner 43df2886c5 Don't insert null entries into the scalar map for constexpr (cast null to Ty)
llvm-svn: 5523
2003-02-09 23:04:12 +00:00
Chris Lattner 4e0457a027 Switch to using the right call vector
llvm-svn: 5517
2003-02-09 19:26:47 +00:00
Chris Lattner 93fdaf9cb9 Fix major bugs in incompleteness marking that were pessimizing results
llvm-svn: 5515
2003-02-09 18:42:43 +00:00
Chris Lattner e4059b4ed6 Print out the steens graph if -debug is specified
llvm-svn: 5514
2003-02-09 18:42:16 +00:00
Chris Lattner 0eee7eb390 * Fix a bug where global incompleteness marking would not mark the global
itself incomplete!
* Allow incompleteness callers to specify they don't want globals to be
  considered sources of incompleteness.

llvm-svn: 5513
2003-02-09 18:41:49 +00:00
Chris Lattner 26bd24cd81 Add a special case for main because we know it's incoming arguments don't alias
llvm-svn: 5511
2003-02-08 23:08:02 +00:00
Chris Lattner d73f9f55f2 Fix a bug where we would mark the callees arguments incomplete if the caller was external.
llvm-svn: 5510
2003-02-08 23:07:39 +00:00
Chris Lattner 63ea85f089 Remove explicit result counters
llvm-svn: 5508
2003-02-08 23:03:17 +00:00
Chris Lattner cb7d6429fc Add a flag which effectively disables field sensitivity
llvm-svn: 5506
2003-02-08 20:18:39 +00:00
Chris Lattner fdc902e6f2 Don't bother counting alias results, allow the AliasAnalysisCounter to do that.
llvm-svn: 5505
2003-02-07 20:39:48 +00:00
Chris Lattner f7979c2f2b Fix an assertion failure
llvm-svn: 5496
2003-02-06 00:15:08 +00:00
Chris Lattner 80614ee5ef Implement optimization for direct function call case. This dramatically
reduces the number of function nodes created and speeds up analysis by
about 10% overall.

llvm-svn: 5495
2003-02-05 21:59:58 +00:00
Chris Lattner d7357ab5d1 Remove bogus assertion
llvm-svn: 5492
2003-02-04 16:33:23 +00:00
Chris Lattner 04fb4b5808 Fix a huge bug with handling non-pointer instructions
llvm-svn: 5491
2003-02-04 00:59:50 +00:00
Chris Lattner 36fd3eccbd Make the TD pass not include all of the call nodes from the local pass,
eliminating incomplete markers from them

llvm-svn: 5490
2003-02-04 00:59:32 +00:00
Chris Lattner a0e9e6ec8c Add sanity check
llvm-svn: 5489
2003-02-04 00:03:57 +00:00
Chris Lattner 7e41fedd3a Fix steensgaard to work on a lot more cases...
llvm-svn: 5488
2003-02-04 00:03:37 +00:00
Chris Lattner 4113571cd1 Fix printing of nonfunction graphs
llvm-svn: 5487
2003-02-04 00:03:18 +00:00
Chris Lattner eededa396e Rename variable
llvm-svn: 5486
2003-02-03 22:51:53 +00:00
Chris Lattner 390cec0c77 Hack to work around deficiency in pass infrastructure
llvm-svn: 5485
2003-02-03 22:51:28 +00:00
Chris Lattner 8fd2b77547 Initial implementation of ds-aa
llvm-svn: 5484
2003-02-03 22:50:46 +00:00
Chris Lattner 1d3922ac0b * Fix a bug introduced in the last checkin wrt Stack markers
* Make cloning more efficient in the process...

llvm-svn: 5479
2003-02-03 20:08:51 +00:00