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646 Commits

Author SHA1 Message Date
Andrew Lenharth 4aa3001625 Handle some kernel code than ends in [0 x sbyte]. I think this is safe 
llvm-svn: 27672
 2006-04-13 19:31:49 +00:00
Andrew Lenharth 8f321af723 revert this, this is safe, if conservative. leave a note to that effect 
llvm-svn: 27428
 2006-04-05 02:42:36 +00:00
Andrew Lenharth d7e612bbc4 If adding a link to a collapsed, node, ignore offset. 
Fixes 2006-03-27-LinkedCollapsed.ll

llvm-svn: 27194
 2006-03-27 23:39:58 +00:00
Andrew Lenharth b3dae7cfa9 no heap is happening here 
llvm-svn: 26781
 2006-03-15 19:03:16 +00:00
Andrew Lenharth c0b65305f1 remove qsort for now 
llvm-svn: 26779
 2006-03-15 18:32:18 +00:00
Andrew Lenharth fb4df2055f allow field sensitivity to be a tunable parameter 
llvm-svn: 26777
 2006-03-15 05:43:41 +00:00
Andrew Lenharth 3196422df0 Handle one offset with growth case seen in povray. Namely, if we have an offset, 
and the offset lands at a field boundary in the old type, construct a new type,
copying the fields masked by the offset from the old type, and unify with that.

llvm-svn: 26775
 2006-03-15 04:04:21 +00:00
Andrew Lenharth c254e5b180 improve mem intrinsics and add a few things povray uses 
llvm-svn: 26774
 2006-03-15 03:43:59 +00:00
Chris Lattner 093c159efb Split memcpy/memset/memmove intrinsics into i32/i64 versions, resolving 
PR709, and paving the way for future progress.

llvm-svn: 26476
 2006-03-03 00:00:25 +00:00
Chris Lattner 6806c02380 Add explicit iostream #includes 
llvm-svn: 25513
 2006-01-22 23:19:18 +00:00
Chris Lattner 469640e506 Add explicit #includes of <iostream> 
llvm-svn: 25509
 2006-01-22 22:53:01 +00:00
John Criswell 757035ead9 Prefix DSA specific options with dsa. 
Make the dsa-alloc-list and dsa-free-list options hidden.

llvm-svn: 24864
 2005-12-19 20:14:38 +00:00
John Criswell 45bb70d8f9 Added an option to specify the names of heap freeing functions. 
llvm-svn: 24863
 2005-12-19 19:54:23 +00:00
John Criswell aa0fed0148 Added a command line option that allows the user to specify a list of 
functions that allocate memory.

llvm-svn: 24862
 2005-12-19 17:38:39 +00:00
Sumant Kowshik a69fcbdeb8 Collapsing node if variable length struct with final field of length zero 
llvm-svn: 24621
 2005-12-06 18:04:30 +00:00
Chris Lattner 8df7c01299 don't bother building the archive version of this library 
llvm-svn: 23927
 2005-10-24 01:08:20 +00:00
Chris Lattner 75d4f6fbcb implement some prototypes 
llvm-svn: 23920
 2005-10-24 00:38:38 +00:00
Jeff Cohen 5f4ef3c5a8 Eliminate all remaining tabs and trailing spaces. 
llvm-svn: 22523
 2005-07-27 06:12:32 +00:00
Andrew Lenharth 9144ec4764 core changes for varargs 
llvm-svn: 22254
 2005-06-18 18:34:52 +00:00
Chris Lattner ecac782786 Correctly handle global-argument aliases induced in main 
llvm-svn: 21537
 2005-04-25 19:16:31 +00:00
Chris Lattner 5965359d8f Don't mess up SCC traversal when a node has null edges out of it. 
llvm-svn: 21536
 2005-04-25 19:16:17 +00:00
Chris Lattner 4bbf66b7a2 Propagate eq sets through the bu graphs to the cbu and eq graphs, fixing 
a crash of the sfv on 188.ammp

llvm-svn: 21478
 2005-04-23 21:11:05 +00:00
Misha Brukman 774511633d Convert tabs to spaces 
llvm-svn: 21439
 2005-04-22 04:01:18 +00:00
Misha Brukman 01808caded Remove trailing whitespace 
llvm-svn: 21416
 2005-04-21 21:13:18 +00:00
Chris Lattner 4c5c96f35f add support for taking and resolving the address of free. 
llvm-svn: 21396
 2005-04-21 16:09:43 +00:00
Chris Lattner 6febe5ef40 Fix a crash analyzing MultiSource/Benchmarks/MallocBench/gs 
llvm-svn: 21245
 2005-04-12 03:59:27 +00:00
Chris Lattner d2df8ca403 fix some VC compilation problems, thanks to Jeff C for pointing this out! 
llvm-svn: 21044
 2005-04-02 20:17:09 +00:00
Chris Lattner a7913e66e1 EquivClassGraphs is now in DataStructure.h 
llvm-svn: 21042
 2005-04-02 20:08:17 +00:00
Chris Lattner 526cc17b55 use a callee_iterator typedef. 
llvm-svn: 21038
 2005-04-02 20:02:41 +00:00
Chris Lattner 990ed1d201 Change the ActualCallees callgraph from hash_multimap<Instruction,Function> 
to std::set<std::pair<Inst,Func>> to avoid duplicate entries.

This speeds up the CompleteBU pass from 1.99s to .15s on povray and the
eqgraph passes from 1.5s to .16s on the same.

llvm-svn: 21031
 2005-04-02 19:17:18 +00:00
Chris Lattner 2e1971c19d Fix a problem where we not marking incoming arguments to functions with 
external linkage as incomplete.

llvm-svn: 20927
 2005-03-29 19:16:59 +00:00
Chris Lattner 2db10ba297 remove ... 
llvm-svn: 20883
 2005-03-27 21:57:09 +00:00
Chris Lattner f290da862d speed up steens by using spliceFrom, improve its precision by realizing that 
an incomplete node cannot alias a complete node.

llvm-svn: 20882
 2005-03-27 21:56:55 +00:00
Chris Lattner 82166467c3 Don't give up completely, maybe other AA can say something about this. 
llvm-svn: 20873
 2005-03-27 00:02:33 +00:00
Chris Lattner 2ba37389c9 Cache mapping information for a call site after computing it for a mod/ref 
query.  If the next mod/ref query happens to be for the same call site
(which is extremely likely), use the cache instead of recomputing the
callee/caller mapping.  This makes -aa-eval ***MUCH*** faster with
ds-aa

llvm-svn: 20871
 2005-03-26 23:29:03 +00:00
Chris Lattner 139f43b340 Remove more long dead code: dsa doesn't provide must alias info 
llvm-svn: 20870
 2005-03-26 22:54:46 +00:00
Chris Lattner 1a02d15dab remove some unsafe code that has long been dead 
llvm-svn: 20869
 2005-03-26 22:48:42 +00:00
Chris Lattner 9cc932d3b3 slightly improve mod/ref for DSAA by checking the globals graph for fallback 
llvm-svn: 20868
 2005-03-26 22:47:03 +00:00
Chris Lattner b3baff1830 Teach steens-aa two things about mod/ref information: 
1. If memory never escapes the program, it cannot be mod/ref'd by external
     functions.
  2. If memory is global never mod/ref'd in the program, it cannot be mod/ref'd
     by any call.

llvm-svn: 20867
 2005-03-26 22:43:20 +00:00
Chris Lattner d21e220035 no really, don't double count these nodes either! 
llvm-svn: 20837
 2005-03-25 20:54:45 +00:00
Chris Lattner b7ffd50537 Don't count all of the nodes in the SCC once for each function in the SCC. 
llvm-svn: 20836
 2005-03-25 20:37:32 +00:00
Chris Lattner 5ecec08ab5 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.

llvm-svn: 20834
 2005-03-25 16:45:43 +00:00
Chris Lattner 3322e28f75 remove a debugging timer. 
llvm-svn: 20827
 2005-03-25 00:06:09 +00:00
Chris Lattner 278bac843c 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.

llvm-svn: 20826
 2005-03-25 00:05:04 +00:00
Chris Lattner a396eb8ae9 Make the spliceFrom case where one graph is completely empty be constant time. 
llvm-svn: 20825
 2005-03-25 00:02:41 +00:00
Chris Lattner 127dd12427 add a new DSGraph::spliceFrom method, which violently takes the content of 
one graph and plops it into another, without breaking a sweat.

llvm-svn: 20824
 2005-03-24 23:46:04 +00:00
Chris Lattner 301764e28c 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 :)

llvm-svn: 20820
 2005-03-24 23:06:02 +00:00
Chris Lattner 1b5b559011 only look at successors of globals. This gets us down to "only" 22s in the 
bu pass for 176.gcc

llvm-svn: 20818
 2005-03-24 21:17:27 +00:00
Chris Lattner 189d7bb9ee 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

llvm-svn: 20817
 2005-03-24 21:07:47 +00:00
Chris Lattner 923d925953 don't bother |'ing in 0's 
llvm-svn: 20815
 2005-03-24 18:42:51 +00:00