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1255 Commits

Author SHA1 Message Date
Andrew Lenharth
c826aea982 the correct fix was to fix AliasAnalysis.getModRefInfo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22268 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-20 15:25:22 +00:00
Andrew Lenharth
e3e1739b7d prevent GCSE from forwarding stores to loads around vaarg. This is uggly, and I am trying to fix the AliasInfo, as it should catch the problem instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22266 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-20 15:02:05 +00:00
Andrew Lenharth
558bc88a00 core changes for varargs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22254 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-18 18:34:52 +00:00
Chris Lattner
42e3c81c5f By definition, 'tail' calls cannot access the stack frame of their caller. 
Expose this as a simple form of mod/ref information.  This implements
BasicAA/tailcall-modref.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21796 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-08 23:58:12 +00:00
Chris Lattner
998fffdda1 These intrinsics do not access memory 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21718 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-06 05:21:04 +00:00
Misha Brukman
f4f85998bf Remove extra blank line 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21706 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-05 23:43:47 +00:00
Chris Lattner
eed37bad01 Add llvm.sqrt intrinsic, patch contributed by Morten Ofstad 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21627 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-30 03:44:07 +00:00
Chris Lattner
5b103c20e3 These functions can set errno! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21609 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-28 21:52:31 +00:00
Chris Lattner
318c149823 Make interval partition print correctly, patch contributed by 
Vladimir Prus!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21566 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-26 14:48:28 +00:00
Chris Lattner
a1198b5254 Correctly handle global-argument aliases induced in main 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21537 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-25 19:16:31 +00:00
Chris Lattner
63320cc841 Don't mess up SCC traversal when a node has null edges out of it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21536 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-25 19:16:17 +00:00
Chris Lattner
cc1f24585e Propagate eq sets through the bu graphs to the cbu and eq graphs, fixing 
a crash of the sfv on 188.ammp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21478 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-23 21:11:05 +00:00
Chris Lattner
3fe4d3cb5b Malloc/Free have mod/ref effects. Do not allow CSE of function calls that 
call malloc/free.  This fixes PR555.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21443 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-22 05:36:59 +00:00
Misha Brukman
dedf2bd5a3 Convert tabs to spaces 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21439 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-22 04:01:18 +00:00
Misha Brukman
fd93908ae8 Remove trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21427 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-21 23:48:37 +00:00
Misha Brukman
2b37d7cf28 Remove trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21416 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-21 21:13:18 +00:00
Chris Lattner
a5ed1bd00b add support for taking and resolving the address of free. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21396 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-21 16:09:43 +00:00
Chris Lattner
af2e3e0859 Fix a crash analyzing MultiSource/Benchmarks/MallocBench/gs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21245 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-12 03:59:27 +00:00
Chris Lattner
6128690c62 Don't make this require loopsimplify. It works BETTER with loop simplify 
but should not require it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21123 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 21:45:00 +00:00
Chris Lattner
bd135c7706 do not crash when using -debug 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21092 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-05 01:12:03 +00:00
Chris Lattner
8a9763c3cd do not dereference an extra layer of pointers to determine if an external 
call can modify a memory location.  This fixes
test/Regression/Analysis/Andersens/modreftest.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21088 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-04 22:23:21 +00:00
Chris Lattner
1231aa3fa6 fix some VC compilation problems, thanks to Jeff C for pointing this out! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21044 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 20:17:09 +00:00
Chris Lattner
0700123431 EquivClassGraphs is now in DataStructure.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21042 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 20:08:17 +00:00
Chris Lattner
2ccc5f1081 use a callee_iterator typedef. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21038 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 20:02:41 +00:00
Chris Lattner
021decc82d 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21031 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 19:17:18 +00:00
Chris Lattner
175b9635cc import all of the rest of the stubs that dsa uses for direct comparison 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20932 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 20:36:05 +00:00
Chris Lattner
77b505670c learn about some more functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20929 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 20:04:24 +00:00
Chris Lattner
9342a939eb Fix a problem where we not marking incoming arguments to functions with 
external linkage as incomplete.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20927 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 19:16:59 +00:00
Chris Lattner
cfba7981eb there is no point comparing against null pointer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20925 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 17:44:52 +00:00
Chris Lattner
76bc5ce5c4 Fix a major problem with global variable initializers. This could cause 
us to have stuff pointing to the null pointer, which makes no sense
(the null ptr is an ssa value, not the null object)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20922 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 17:21:53 +00:00
Chris Lattner
4de57fd9e9 add some more functions, ignore setcc for constraints! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20917 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 06:52:20 +00:00
Chris Lattner
8a44643d61 Handle "known" external calls context sensitively, add support for realloc 
and a couple of other functions that are important.

Handle aggregate undef values for gv initializers


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20914 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 06:09:07 +00:00
Chris Lattner
f392c64ec6 Teach andersens that non-escaping memory cannot be mod/ref'd by external fn calls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20891 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 06:21:17 +00:00
Misha Brukman
be5e2f4f9b Fix grammar 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20890 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 04:32:12 +00:00
Chris Lattner
c3c9fd0dd6 Make anders-aa much more precise by not being completely pessimistic about 
external functions.  Teach it about a few important ones.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20889 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 04:03:52 +00:00
Chris Lattner
493f6366cb wrap some long lines 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20884 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-27 22:03:46 +00:00
Chris Lattner
93ab219244 remove ... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20883 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-27 21:57:09 +00:00
Chris Lattner
40ee8ce28b speed up steens by using spliceFrom, improve its precision by realizing that 
an incomplete node cannot alias a complete node.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20882 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-27 21:56:55 +00:00
Chris Lattner
267a1b02a2 teach andersens about undef 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20881 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-27 18:58:23 +00:00
Chris Lattner
5f4c0a88ee Don't give up completely, maybe other AA can say something about this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20873 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-27 00:02:33 +00:00
Chris Lattner
e70492d0e2 Factor out percentage printing into its own function. Make two changes to 
the function: print more precision XX.X% instead of XX%, and cast to ULL
before scaling by 100/1000 to avoid wrap around for large numbers of queries
(such as occur for 253.perlbmk and 176.gcc)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20872 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-26 23:56:33 +00:00
Chris Lattner
1b9a2aac98 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20871 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-26 23:29:03 +00:00
Chris Lattner
a7337dc2b9 Remove more long dead code: dsa doesn't provide must alias info 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20870 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-26 22:54:46 +00:00
Chris Lattner
5a6a9d4f0c remove some unsafe code that has long been dead 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20869 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-26 22:48:42 +00:00
Chris Lattner
bc499de74f slightly improve mod/ref for DSAA by checking the globals graph for fallback 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20868 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-26 22:47:03 +00:00
Chris Lattner
b7523418b0 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20867 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-26 22:43:20 +00:00
Chris Lattner
0772e78789 Interchange this loop so that we test all pointers against one call site 
before moving on to the next call site.  This will be a more efficient way
to compute the mod/ref set for AA implementations like DSA.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20866 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-26 22:16:44 +00:00
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