Commit Graph

646 Commits

Author SHA1 Message Date
Chris Lattner 7d0dafc0dc * Nodes now keep track of any global variables in them
* Only dead-node-eliminate nodes with no flags
* Don't merge scalars, only merge what they point to.

llvm-svn: 2878
2002-07-11 20:32:02 +00:00
Chris Lattner c0dab43c31 New implementation of data structure analysis. Only local analysis has been
implemented so far.

llvm-svn: 2871
2002-07-10 22:38:08 +00:00
Chris Lattner 3e35cef186 Reimplement data structure analysis
llvm-svn: 2868
2002-07-10 22:36:26 +00:00
Chris Lattner 9e5b6904e5 Fix anand's last checkin
llvm-svn: 2804
2002-06-30 16:01:15 +00:00
Anand Shukla 2ac04a0083 changes to make it compatible with 64bit gcc
llvm-svn: 2795
2002-06-25 21:18:19 +00:00
Anand Shukla ff4c42b7c3 changes to make it compatible with 64bit gcc
llvm-svn: 2789
2002-06-25 20:35:19 +00:00
Chris Lattner fda72b1aad *** empty log message ***
llvm-svn: 2777
2002-06-25 16:12:52 +00:00
Chris Lattner ca14237696 Split ConstantVals.h into Constant.h and Constants.h
llvm-svn: 2378
2002-04-28 19:55:58 +00:00
Chris Lattner 503a3fcb42 Fix signed/unsigned comparison warning
llvm-svn: 2350
2002-04-28 04:49:43 +00:00
Chris Lattner 1f4423938d Add support for tracking array allocations
llvm-svn: 2328
2002-04-27 02:28:41 +00:00
Chris Lattner 87c8a4a032 Allow the inline limit to be modified on the commandline for debugging
llvm-svn: 2327
2002-04-27 02:27:48 +00:00
Chris Lattner a2cdf2fb10 Print argument scalars as ellipses instead of boxes
llvm-svn: 2293
2002-04-18 18:14:19 +00:00
Chris Lattner bda898420b Inline indirect function calls that are only capable of calling one function
llvm-svn: 2275
2002-04-17 03:42:51 +00:00
Chris Lattner 79db55028c Make data structure acurately get ALL edges, even loads of null fields of
nodes that are not shadow nodes

This fixes em3d to be _correct_ if not optimial

llvm-svn: 2274
2002-04-17 03:24:59 +00:00
Chris Lattner 071dea7362 * Remove the concept of a critical shadow node
* Make the function pointer argument explicit for a call nodes
* Eliminate unreachable global values
* Merge call nodes that are identical

llvm-svn: 2266
2002-04-16 20:39:59 +00:00
Chris Lattner 46b08cdc7c * Eliminate ArgDSNode's completely, now rely on scalar map
* Fold call nodes that are indistinguishable for each other.  This is a big
  win for external functions like sqrt, which would multiply dramatically
  before.
* Global nodes with no edges to or from them are now eliminated from the graph.

llvm-svn: 2257
2002-04-16 03:44:03 +00:00
Chris Lattner 2e9fa6d101 Move FunctionArgument out of iOther.h into Argument.h and rename class to
be 'Argument' instead of FunctionArgument.

llvm-svn: 2216
2002-04-09 19:48:49 +00:00
Chris Lattner 06be180225 Add explicit #includes of Function.h to make up for the removed #include
in iOther.h

llvm-svn: 2209
2002-04-09 19:08:28 +00:00
Chris Lattner d92b01c385 Add #includes to make up for #includes pruned out of header files.
llvm-svn: 2207
2002-04-09 18:37:46 +00:00
Chris Lattner 3734fe4f35 Play around with #includes
llvm-svn: 2174
2002-04-08 21:58:53 +00:00
Chris Lattner 9ba54b2f31 Call nodes are never equivalent
Shadow nodes are never critical.

llvm-svn: 2102
2002-04-04 19:21:51 +00:00
Chris Lattner d6c8dd1473 Add hack to get timing of analysis
llvm-svn: 2101
2002-04-04 19:21:27 +00:00
Chris Lattner d7b6c331ea * Eliminate commented out code
* Do not demand a shadow node when resolving
* Raise arbitrary inline limit

llvm-svn: 2100
2002-04-04 19:21:06 +00:00
Chris Lattner 4f47bb8ae6 Support resolving function arguments/return values to pointers that index
into other objects.

llvm-svn: 2094
2002-04-01 22:20:48 +00:00
Chris Lattner 7203e9f05a Avoid incorrectly adding null values to the scalar map!
llvm-svn: 2085
2002-04-01 00:45:09 +00:00
Chris Lattner f224b6b511 Critical shadow nodes no do not know their parent explictly.
llvm-svn: 2084
2002-04-01 00:15:30 +00:00
Chris Lattner b4648bb38f Minor cleanups (use dyn_cast instead of testing manually)
Shadow nodes now don't explicitly know their parent.

llvm-svn: 2083
2002-04-01 00:14:41 +00:00
Chris Lattner 6b06aa557e Allow merging of identical call nodes. Make the shadow node pointed to
by the call node noncritical before the call is destroyed.

llvm-svn: 2082
2002-04-01 00:13:56 +00:00
Chris Lattner a7b3b50381 Increase limit for perimeter
llvm-svn: 2081
2002-04-01 00:12:58 +00:00
Chris Lattner d63afb418e Unify the destruction code used for node pairs vs normal nodes. This was
causing a problem before because global values with incoming edges didn't
copy the incoming edges to the node they were being merged from, causing
the poolalloc pass to die.

llvm-svn: 2079
2002-03-31 19:57:44 +00:00
Chris Lattner d45f4df2ae * Move the isEquivalentTo implementations here. They can probably be put
someplace nicer in the file though.
* Add new dump method for debugging

llvm-svn: 2064
2002-03-31 07:16:08 +00:00
Chris Lattner 49c3ea8c1e Print out the instruction instead of just the address!
llvm-svn: 2063
2002-03-31 07:15:20 +00:00
Chris Lattner ed9bfd95a9 * Move isEquivalentTo implementations to NodeImpl
* Implement a new form of node folding to catch cases missed in Addtree
* Add removeIndistinguishableNodePairs to merge calls (todo) and globals

llvm-svn: 2062
2002-03-31 07:14:52 +00:00
Chris Lattner a2cdaba6ed * Convert CallMap to be a vector, because the keys can change, and the map
doesn't resort!
* Be more generous with the cached matches that we allow now.
* Recursive calls should all work now!

llvm-svn: 2061
2002-03-31 07:13:27 +00:00
Chris Lattner 8d4894e3fa Implement getEscapingAllocations & getNonEscapingAllocations
llvm-svn: 2021
2002-03-28 19:33:00 +00:00
Chris Lattner c3ae15cf0b * Rename UnlinkUndistinguishableShadowNodes & RemoveUnreachableShadowNodes
to reflect that they can eliminate arbitrary nodes.
* Rename the ShadowNodeEliminate.cpp file to EliminateNodes.cpp for the
  same reason

llvm-svn: 2020
2002-03-28 19:16:48 +00:00
Chris Lattner 8a5c470c59 Ooops, I did such a great job pruning nodes, that I accidentally deleted
ALL allocation nodes... hrm... bad.

llvm-svn: 2018
2002-03-28 18:38:38 +00:00
Chris Lattner b1782d0c90 Many changes
* Simplify a lot of the inlining stuff.  There are still problems, but not
  many
* Break up the Function representation to have a vector for every different
  node type so it is fast to find nodes of a particular flavor.
* Do more intelligent merging of call values
* Allow elimination of unreachable shadow and allocation nodes
* Generalize indistinguishability testing to allow merging of identical calls.
* Increase shadow node merging power

llvm-svn: 2010
2002-03-28 17:56:03 +00:00
Chris Lattner be449bc1ef * Add #define to enabled debug messages
* Move removeEdgesTo to be a member of DSNode
* Implement (but #ifdef out) the new, spiffier, method of determining
  shadow node equivalence.  This cannot be enabled until more is
  implemented.

llvm-svn: 2004
2002-03-27 19:48:03 +00:00
Chris Lattner d9c86c7c96 * Implement DSNode::removeAllIncomingEdges
* Implement Critical Shadow node handling
* Implement routines to determine whether an allocation node is a malloc
  or alloca

llvm-svn: 2003
2002-03-27 19:46:05 +00:00
Chris Lattner 0ad8b8f5d0 * Add critical node support
* Optimize graph after building it.  This should be unneccesary in the future

llvm-svn: 2002
2002-03-27 19:45:12 +00:00
Chris Lattner b6c8c5138f * Destroy alloca nodes when a graph gets inlined
* Add links to all subtrees when a shadow node gets resolved
* Add critical node handling

llvm-svn: 2001
2002-03-27 19:44:33 +00:00
Chris Lattner b358f71d02 * Optimizers return true on change
* Implement indistinguishable shadow node elimination

llvm-svn: 1999
2002-03-27 00:55:13 +00:00
Chris Lattner 5c3280971c Fix long line
llvm-svn: 1998
2002-03-27 00:54:31 +00:00
Chris Lattner f8e2d060cc * Because of optimization, the shadow nodes between arguments might get
removed.  Check to see if they are there.
* Repeat optimizations while changing

llvm-svn: 1997
2002-03-27 00:53:57 +00:00
Chris Lattner e604d8ec65 Initial checkin of Datastructure analysis.
Has bugs, but shouldn't crash in theory.

llvm-svn: 1994
2002-03-26 22:39:06 +00:00