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1217 Commits

Author SHA1 Message Date
Andrew Lenharth
10f725f64b Remove glibc specific functions, and mark a couple as C99 
llvm-svn: 22384
 2005-07-11 20:35:20 +00:00
Andrew Lenharth
8089fbc902 because on alpha: 
#   define errno (*__errno_location ())

*shakes head

llvm-svn: 22383
 2005-07-11 17:41:12 +00:00
Andrew Lenharth
4e1c8055ea the correct fix was to fix AliasAnalysis.getModRefInfo 
llvm-svn: 22268
 2005-06-20 15:25:22 +00:00
Andrew Lenharth
262b657737 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. 
llvm-svn: 22266
 2005-06-20 15:02:05 +00:00
Andrew Lenharth
a9214fec08 core changes for varargs 
llvm-svn: 22254
 2005-06-18 18:34:52 +00:00
Chris Lattner
5a7f1642b7 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

llvm-svn: 21796
 2005-05-08 23:58:12 +00:00
Chris Lattner
4f7bba1106 These intrinsics do not access memory 
llvm-svn: 21718
 2005-05-06 05:21:04 +00:00
Misha Brukman
d29b27d73b Remove extra blank line 
llvm-svn: 21706
 2005-05-05 23:43:47 +00:00
Chris Lattner
234ffe2395 Add llvm.sqrt intrinsic, patch contributed by Morten Ofstad 
llvm-svn: 21627
 2005-04-30 03:44:07 +00:00
Chris Lattner
fb0d0ea349 These functions can set errno! 
llvm-svn: 21609
 2005-04-28 21:52:31 +00:00
Chris Lattner
5dc0b9e938 Make interval partition print correctly, patch contributed by 
Vladimir Prus!

llvm-svn: 21566
 2005-04-26 14:48:28 +00:00
Chris Lattner
bab9c90db4 Correctly handle global-argument aliases induced in main 
llvm-svn: 21537
 2005-04-25 19:16:31 +00:00
Chris Lattner
e39652d21c 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
0bc1588c47 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
Chris Lattner
c638ca05a0 Malloc/Free have mod/ref effects. Do not allow CSE of function calls that 
call malloc/free.  This fixes PR555.

llvm-svn: 21443
 2005-04-22 05:36:59 +00:00
Misha Brukman
a9a1982a44 Convert tabs to spaces 
llvm-svn: 21439
 2005-04-22 04:01:18 +00:00
Misha Brukman
122d682689 Remove trailing whitespace 
llvm-svn: 21416
 2005-04-21 21:13:18 +00:00
Chris Lattner
9d2c6a3981 add support for taking and resolving the address of free. 
llvm-svn: 21396
 2005-04-21 16:09:43 +00:00
Chris Lattner
f8d9224d8c Fix a crash analyzing MultiSource/Benchmarks/MallocBench/gs 
llvm-svn: 21245
 2005-04-12 03:59:27 +00:00
Chris Lattner
49d166c6b6 Don't make this require loopsimplify. It works BETTER with loop simplify 
but should not require it.

llvm-svn: 21123
 2005-04-06 21:45:00 +00:00
Chris Lattner
c5b8fbe7f9 do not crash when using -debug 
llvm-svn: 21092
 2005-04-05 01:12:03 +00:00
Chris Lattner
57ea4daa2e 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

llvm-svn: 21088
 2005-04-04 22:23:21 +00:00
Chris Lattner
0938200804 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
e6d28e8aac EquivClassGraphs is now in DataStructure.h 
llvm-svn: 21042
 2005-04-02 20:08:17 +00:00
Chris Lattner
54ab60f08d use a callee_iterator typedef. 
llvm-svn: 21038
 2005-04-02 20:02:41 +00:00
Chris Lattner
23ef46ddca 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
761bb09edb import all of the rest of the stubs that dsa uses for direct comparison 
llvm-svn: 20932
 2005-03-29 20:36:05 +00:00
Chris Lattner
94ea4d104c learn about some more functions. 
llvm-svn: 20929
 2005-03-29 20:04:24 +00:00
Chris Lattner
cc1644eb2c 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
39064a8ca0 there is no point comparing against null pointer. 
llvm-svn: 20925
 2005-03-29 17:44:52 +00:00
Chris Lattner
5ceaf630ab 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)

llvm-svn: 20922
 2005-03-29 17:21:53 +00:00
Chris Lattner
4f9c2cde55 add some more functions, ignore setcc for constraints! 
llvm-svn: 20917
 2005-03-29 06:52:20 +00:00
Chris Lattner
813ef90a12 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

llvm-svn: 20914
 2005-03-29 06:09:07 +00:00
Chris Lattner
47fcba56f8 Teach andersens that non-escaping memory cannot be mod/ref'd by external fn calls. 
llvm-svn: 20891
 2005-03-28 06:21:17 +00:00
Misha Brukman
b97b449309 Fix grammar 
llvm-svn: 20890
 2005-03-28 04:32:12 +00:00
Chris Lattner
abb512a593 Make anders-aa much more precise by not being completely pessimistic about 
external functions.  Teach it about a few important ones.

llvm-svn: 20889
 2005-03-28 04:03:52 +00:00
Chris Lattner
691b1987e1 wrap some long lines 
llvm-svn: 20884
 2005-03-27 22:03:46 +00:00
Chris Lattner
6b31704450 remove ... 
llvm-svn: 20883
 2005-03-27 21:57:09 +00:00
Chris Lattner
15741f8877 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
7f0903e187 teach andersens about undef 
llvm-svn: 20881
 2005-03-27 18:58:23 +00:00
Chris Lattner
de6cc372e3 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
3a88055932 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)

llvm-svn: 20872
 2005-03-26 23:56:33 +00:00
Chris Lattner
b84076a278 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
21d25dd835 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
8638fbf4d6 remove some unsafe code that has long been dead 
llvm-svn: 20869
 2005-03-26 22:48:42 +00:00
Chris Lattner
ee96215ded 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
02275101be 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
bbec058833 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.

llvm-svn: 20866
 2005-03-26 22:16:44 +00:00
Chris Lattner
d11e075664 no really, don't double count these nodes either! 
llvm-svn: 20837
 2005-03-25 20:54:45 +00:00
Chris Lattner
81e77226bb 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