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* The tarjan iterator now returns a reference to the current SCC, not a ↵Chris Lattner2003-08-31
| | | | | | possibly null pointer! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8262 91177308-0d34-0410-b5e6-96231b3b80d8
* Minor cleanupsChris Lattner2003-08-31
| | | | | | | Iterate from tarj_begin -> tarj_end, not from tarj_begin -> NULL git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8260 91177308-0d34-0410-b5e6-96231b3b80d8
* Indent classes correctly in the namespaceChris Lattner2003-08-31
| | | | | | | | move bodies out-of-line Add getAnalysisUsage method for SFGSCC git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8259 91177308-0d34-0410-b5e6-96231b3b80d8
* * CleanupsChris Lattner2003-08-31
| | | | | | | * Iterate from tarj_begin -> tarj_end, not from tarj_begin -> NULL git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8258 91177308-0d34-0410-b5e6-96231b3b80d8
* Initial checkin of the CallGraphSCCPass classChris Lattner2003-08-31
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8247 91177308-0d34-0410-b5e6-96231b3b80d8
* There is no reason for this to be a pass!Chris Lattner2003-08-29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8214 91177308-0d34-0410-b5e6-96231b3b80d8
* Spell `necessary' correctly.Misha Brukman2003-08-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7944 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix the bug that broke the nightly tester in McCat/18-imp last night. :(Chris Lattner2003-08-17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7925 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix bug: LoopPreheaders/2003-08-15-PreheadersFail.llChris Lattner2003-08-16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7915 91177308-0d34-0410-b5e6-96231b3b80d8
* Improvement to the previous fix: branch following a delay slot ofVikram S. Adve2003-08-14
| | | | | | | | another delayed instr. would cause the later sanity-check (assertion) in PhyRegAlloc.cpp to fail, even though there is really no error. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7848 91177308-0d34-0410-b5e6-96231b3b80d8
* For an instruction with delay slots, mark all live values beforeVikram S. Adve2003-08-12
| | | | | | | | the instruction as being live before/after the delay slot instructions as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7795 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unnecessary use of NonCopyableChris Lattner2003-08-06
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7641 91177308-0d34-0410-b5e6-96231b3b80d8
* Add more verbose commentChris Lattner2003-08-05
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7610 91177308-0d34-0410-b5e6-96231b3b80d8
* Added function mergeInGlobalsGraph which merges in the entire globals graph ↵Sumant Kowshik2003-08-05
| | | | | | with the graph of a function git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7606 91177308-0d34-0410-b5e6-96231b3b80d8
* DEBUG got moved to Support/Debug.hChris Lattner2003-08-01
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7492 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't require a BB to look-up live variables, unless they may need toVikram S. Adve2003-07-29
| | | | | | | be recomputed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7388 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix another minor bugChris Lattner2003-07-26
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7340 91177308-0d34-0410-b5e6-96231b3b80d8
* Dont' try to parse the colonChris Lattner2003-07-25
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7323 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a more general check-flags which can be used to ensure arbitrary flags ↵Chris Lattner2003-07-25
| | | | | | are set git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7322 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify code by using ConstantInt::getRawValue instead of checking to seeChris Lattner2003-07-23
| | | | | | | whether the constant is signed or unsigned, then casting git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7252 91177308-0d34-0410-b5e6-96231b3b80d8
* Fit code into 80 columnsChris Lattner2003-07-23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7249 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate old-style castChris Lattner2003-07-23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7248 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix comment.Vikram S. Adve2003-07-22
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7227 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typo in call to isUnresolvableFunc, which was breaking the build.Brian Gaeke2003-07-17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7194 91177308-0d34-0410-b5e6-96231b3b80d8
* Rematerialize nodes from the globals graph into the current graphVikram S. Adve2003-07-16
| | | | | | | | | | | 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). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7189 91177308-0d34-0410-b5e6-96231b3b80d8
* (1) Rematerialize nodes from the globals graph into the current graphVikram S. Adve2003-07-16
| | | | | | | | | | | | | 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7188 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement 2 important changes: (1) rematerialization from the globals graph,Vikram S. Adve2003-07-16
| | | | | | | | | | | | | | | | | | | | | | | | 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7187 91177308-0d34-0410-b5e6-96231b3b80d8
* Factor out the test for unresolvable external functions intoVikram S. Adve2003-07-16
| | | | | | | | isUnresolvableFunc() (I thought I needed this externally. I don't, but it's still nicer this way.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7186 91177308-0d34-0410-b5e6-96231b3b80d8
* The word `separate' only has one `e'.Misha Brukman2003-07-14
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7174 91177308-0d34-0410-b5e6-96231b3b80d8
* Reuse the values if they are constants: this is important so that we index ↵Chris Lattner2003-07-03
| | | | | | | | | into the right structure field This fixes bug: BasicAA/2003-07-03-BasicAACrash.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7093 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove globals more aggressively from graphs.Chris Lattner2003-07-03
| | | | | | | Fix a bug where we removed nodes that were marked U. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7090 91177308-0d34-0410-b5e6-96231b3b80d8
* INCLUDE_PARENT_GRAPH is required!Chris Lattner2003-07-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7088 91177308-0d34-0410-b5e6-96231b3b80d8
* Disable incorrect mustalias codeChris Lattner2003-07-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7087 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove space at end of lineChris Lattner2003-07-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7084 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix how we are handling unreachable functions. This DRAMATICALLY improves ↵Chris Lattner2003-07-02
| | | | | | efficiency git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7082 91177308-0d34-0410-b5e6-96231b3b80d8
* Keep track of how many inlinings are performedChris Lattner2003-07-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7076 91177308-0d34-0410-b5e6-96231b3b80d8
* Try using trivially dead deletionChris Lattner2003-07-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7075 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove dead Nodes listChris Lattner2003-07-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7065 91177308-0d34-0410-b5e6-96231b3b80d8
* Complete rewrite of td passChris Lattner2003-07-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7064 91177308-0d34-0410-b5e6-96231b3b80d8
* Print collapsed to match the paperChris Lattner2003-07-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7063 91177308-0d34-0410-b5e6-96231b3b80d8
* Reduce amount of work we do calculating mustaliases if the arg is a globalChris Lattner2003-07-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7062 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for ParentGraph only when building in debug modeChris Lattner2003-07-02
| | | | | | | Minor cleanups, reenable folding of call nodes to external functions git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7061 91177308-0d34-0410-b5e6-96231b3b80d8
* Add some functions to the blacklistChris Lattner2003-07-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7060 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the BU closure keep track of which actual calls happenChris Lattner2003-07-02
| | | | | | | Minor cleanups git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7059 91177308-0d34-0410-b5e6-96231b3b80d8
* Make local pass print out its progressChris Lattner2003-07-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7058 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix bug: Regression/Other/2002-03-11-ExprAssertion.llChris Lattner2003-07-01
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7046 91177308-0d34-0410-b5e6-96231b3b80d8
* Rework TD pass to work with the precise call graph constructed by the BU phaseChris Lattner2003-07-01
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7031 91177308-0d34-0410-b5e6-96231b3b80d8
* Do not treat global variables as functions! (and assert failing)Chris Lattner2003-07-01
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7030 91177308-0d34-0410-b5e6-96231b3b80d8
* Dont' print scalar nodes for ConstantPointerRefsChris Lattner2003-07-01
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7029 91177308-0d34-0410-b5e6-96231b3b80d8
* Minor cleanupsChris Lattner2003-07-01
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7027 91177308-0d34-0410-b5e6-96231b3b80d8
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