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159 Commits

Author SHA1 Message Date
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
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
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
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
7f0903e187 teach andersens about undef 
llvm-svn: 20881
 2005-03-27 18:58:23 +00:00
Chris Lattner
1a860712dc Simplify dead code into a fixme :) 
llvm-svn: 20800
 2005-03-24 02:41:19 +00:00
Chris Lattner
1dfea3e0f7 fix a compiler crash in runtime/libprofile 
llvm-svn: 20799
 2005-03-24 01:22:52 +00:00
Chris Lattner
be7663e15e wrap a long line 
llvm-svn: 20797
 2005-03-23 23:51:12 +00:00
Chris Lattner
78ee200153 If we are calling an external function, chain to another AA to potentially 
decide, don't just immediately give up.

This implements GlobalsModRef/chaining-analysis.ll

llvm-svn: 20796
 2005-03-23 23:49:47 +00:00
Chris Lattner
4b688a1c70 This mega patch converts us from using Function::a{iterator|begin|end} to 
using Function::arg_{iterator|begin|end}.  Likewise Module::g* -> Module::global_*.

This patch is contributed by Gabor Greif, thanks!

llvm-svn: 20597
 2005-03-15 04:54:21 +00:00
Jeff Cohen
6c0db8d863 Add even more missing createXxxPass functions. 
llvm-svn: 19402
 2005-01-08 22:01:16 +00:00
Chris Lattner
a2afb3775e Actually overload the virtual method. This fixes 
Regression/Analysis/GlobalsModRef/purecse.ll.  Isn't this what the
-Woverload-whatever flag would warn about :)

llvm-svn: 19018
 2004-12-17 17:12:24 +00:00
Chris Lattner
8139749984 Adjust to new alias analysis interfaces 
llvm-svn: 18957
 2004-12-15 07:22:13 +00:00
Reid Spencer
d0d846cd06 For PR387:\ 
Add getModRefInfo method to avoid overloaded virtuals

llvm-svn: 18601
 2004-12-07 08:11:24 +00:00
Reid Spencer
d50c86f078 For PR387:\ 
Make only one print method to avoid overloaded virtual warnings when \
compiled with -Woverloaded-virtual

llvm-svn: 18589
 2004-12-07 04:03:45 +00:00
Chris Lattner
598ab60438 Mission accomplished! 
llvm-svn: 17990
 2004-11-19 16:22:24 +00:00
Alkis Evlogimenos
1162280a0d Fix library name. 
llvm-svn: 17306
 2004-10-28 05:36:48 +00:00
Reid Spencer
e48ba34fd4 We won't use automake 
llvm-svn: 17155
 2004-10-22 03:35:04 +00:00
Reid Spencer
ce514b1c2c Initial automake generated Makefile template 
llvm-svn: 17136
 2004-10-18 23:55:41 +00:00
Chris Lattner
cbdf19fed2 Add support 
llvm-svn: 17052
 2004-10-16 18:16:19 +00:00
Reid Spencer
e6418ec30f Update to reflect changes in Makefile rules. 
llvm-svn: 16950
 2004-10-13 11:46:52 +00:00
Reid Spencer
bc135b067a Build both archive and relinked objects 
llvm-svn: 16892
 2004-10-10 22:17:39 +00:00
Reid Spencer
7d9cba7a0f Initial version of automake Makefile.am file. 
llvm-svn: 16885
 2004-10-10 20:43:57 +00:00
Chris Lattner
43c0372c0b 'Pass' should now not be derived from by clients. Instead, they should derive 
from ModulePass.  Instead of implementing Pass::run, then should implement
ModulePass::runOnModule.

llvm-svn: 16436
 2004-09-20 04:48:05 +00:00
Chris Lattner
01bbefa96c Finegrainify namespacification 
'Pass' should now not be derived from by clients.  Instead, they should derive
from ModulePass.  Instead of implementing Pass::run, then should implement
ModulePass::runOnModule.

llvm-svn: 16434
 2004-09-20 04:44:31 +00:00
Chris Lattner
e6755fe307 Fix a nasty iterator invalidation problem I introduced yesterday. This 
unfortunately is the cause of a bunch of failures from tonight, and the
reason the tester is running so slow :(

llvm-svn: 16407
 2004-09-19 19:01:06 +00:00
Chris Lattner
110bbafcf7 Add CallGraphNode::removeAnyCallEdgeTo method 
llvm-svn: 16398
 2004-09-18 21:34:34 +00:00
Chris Lattner
53dea1ce37 When changing a function, make sure to update the CallGraphNode for the 
function, not just the CallGraph.

llvm-svn: 16388
 2004-09-18 00:27:20 +00:00
Chris Lattner
a9b80a3258 Implement new changeFunction method, nuke a never implemented one. 
llvm-svn: 16386
 2004-09-18 00:22:13 +00:00
Reid Spencer
c4abcbefb1 Changes For Bug 352 
Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.

llvm-svn: 16137
 2004-09-01 22:55:40 +00:00
Chris Lattner
818ac2d5e2 Fix a bug that caused the pass to go into infinite loops on trivial testcases. 
This is fallout of the Bug 122 changes.

llvm-svn: 15811
 2004-08-16 05:38:02 +00:00
Chris Lattner
0b9b58e550 Add standard print/dump methods to CallGraph classes. 
llvm-svn: 15569
 2004-08-08 03:27:49 +00:00
Misha Brukman
58104df77b Fix #includes of i*.h => Instructions.h as per PR403. 
llvm-svn: 15334
 2004-07-29 17:30:56 +00:00
Chris Lattner
81f96c5a79 nuke pointless -debug output 
llvm-svn: 15267
 2004-07-27 08:03:18 +00:00
Chris Lattner
6a1dd59421 Fix conservative assumption, which was quite broken. Also, notice that 
functions known to not access memory (like sin/cos) don't access memory! :)

llvm-svn: 15264
 2004-07-27 07:46:26 +00:00
Chris Lattner
c76d21f55d Complete rewrite of this pass to be faster, use less memory, be easier to 
understand, and more accurate to boot!  This implements
GlobalModRef/purecse.ll over the previous impl.

llvm-svn: 15260
 2004-07-27 06:40:37 +00:00
Reid Spencer
b339652b44 bug 122: 
- Replace ConstantPointerRef usage with GlobalValue usage
- Minimize redundant isa<GlobalValue> usage
- Correct isa<Constant> for GlobalValue subclass

llvm-svn: 14942
 2004-07-18 00:18:30 +00:00
Chris Lattner
bb7fe18493 Fixes for PR341 
llvm-svn: 14843
 2004-07-15 02:31:46 +00:00
Reid Spencer
50ec3f9325 Add #include <iostream> since Value.h does not #include it any more. 
llvm-svn: 14622
 2004-07-04 12:19:56 +00:00
Chris Lattner
7d6a9bf05c Initial checkin of a simple mod/ref analysis for global variables. This is 
still overly conservative and uses very simple data structures, but it is a
start, and allows elimination of a lot of loads.

llvm-svn: 14462
 2004-06-28 06:33:13 +00:00