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34 Commits

Author SHA1 Message Date
Owen Anderson
f660f11ec4 Don't DSe volatile stores. 
llvm-svn: 41456
 2007-08-26 21:14:47 +00:00
Owen Anderson
3eba1e8f5c Make NonLocal and None const in the right way. :-) 
llvm-svn: 40961
 2007-08-09 04:42:44 +00:00
Owen Anderson
f988c3ee5c Change the None and NonLocal markers in memdep to be const. 
llvm-svn: 40946
 2007-08-08 21:39:39 +00:00
Owen Anderson
04ba98d0f5 Global values also don't undead-ify pointers in our dead alloca's set. 
llvm-svn: 40936
 2007-08-08 19:12:31 +00:00
Owen Anderson
fd772509e9 Make handleEndBlock significantly faster with one trivial improvement, 
and one hack to avoid hitting a bad case when the alias analysis is imprecise.

llvm-svn: 40935
 2007-08-08 18:38:28 +00:00
Owen Anderson
930610cceb Small improvement: if a function doesn't access memory, we don't need to scan 
it for potentially undeading pointers.

llvm-svn: 40933
 2007-08-08 17:58:56 +00:00
Owen Anderson
ecd9348bd6 Add some comments, remove a dead argument, and simplify some control flow. 
No functionality change.

llvm-svn: 40932
 2007-08-08 17:50:09 +00:00
Owen Anderson
02298f7388 A few more small cleanups. 
llvm-svn: 40922
 2007-08-08 06:06:02 +00:00
Owen Anderson
a9facda8db First round of cleanups from Chris' feedback. 
llvm-svn: 40919
 2007-08-08 04:52:29 +00:00
Owen Anderson
ae769ac824 Fix 80 col. violations. 
llvm-svn: 40749
 2007-08-02 18:11:11 +00:00
Owen Anderson
58e64df595 Rename FastDSE to just DSE. 
llvm-svn: 40668
 2007-08-01 06:36:51 +00:00
Owen Anderson
45499c55e5 Move FastDSE in to DeadStoreElimination. 
llvm-svn: 40667
 2007-08-01 06:30:51 +00:00
Owen Anderson
48e3b68d57 Remove old DSE. 
llvm-svn: 40666
 2007-08-01 06:30:10 +00:00
Nick Lewycky
c2306ff5b4 Fix typo in comment. 
llvm-svn: 36873
 2007-05-06 13:37:16 +00:00
Devang Patel
cd45427a87 Drop 'const' 
llvm-svn: 36662
 2007-05-03 01:11:54 +00:00
Devang Patel
8ee9065162 Use 'static const char' instead of 'static const int'. 
Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.

llvm-svn: 36652
 2007-05-02 21:39:20 +00:00
Devang Patel
38a66bc82e Do not use typeinfo to identify pass in pass manager. 
llvm-svn: 36632
 2007-05-01 21:15:47 +00:00
Reid Spencer
8749d297f5 Apply the VISIBILITY_HIDDEN field to the remaining anonymous classes in 
the Transforms library. This reduces debug library size by 132 KB, debug
binary size by 376 KB, and reduces link time for llvm tools slightly.

llvm-svn: 33939
 2007-02-05 23:32:05 +00:00
Chris Lattner
9e7640cf02 Switch over Transforms/Scalar to use the STATISTIC macro. For each statistic 
converted, we lose a static initializer.  This also allows GCC to emit warnings
about unused statistics.

llvm-svn: 32690
 2006-12-19 21:40:18 +00:00
Chris Lattner
a531ce882e Detemplatize the Statistic class. The only type it is instantiated with 
is 'unsigned'.

llvm-svn: 32279
 2006-12-06 17:46:33 +00:00
Chris Lattner
a39dcb5377 eliminate RegisterOpt. It does the same thing as RegisterPass. 
llvm-svn: 29925
 2006-08-27 22:42:52 +00:00
Chris Lattner
99e894a36f Fix a bug where we didn't realize that vaarg reads memory. This fixes 
Transforms/DeadStoreElimination/2005-11-30-vaarg.ll

llvm-svn: 24545
 2005-11-30 19:38:22 +00:00
Misha Brukman
53e199440e Remove trailing whitespace 
llvm-svn: 21427
 2005-04-21 23:48:37 +00:00
Chris Lattner
c29f25e260 Adjust to changes in instruction interfaces. 
llvm-svn: 19900
 2005-01-29 00:39:08 +00:00
Chris Lattner
131ada2668 Fix uint64_t -> unsigned VS warnings. 
llvm-svn: 19381
 2005-01-08 19:42:22 +00:00
Chris Lattner
b49dd5c526 Fix PR491 and testcase Transforms/DeadStoreElimination/2004-12-28-PartialStore.ll 
llvm-svn: 19180
 2004-12-29 04:36:02 +00:00
Chris Lattner
7301399232 Make DSE potentially more aggressive by being more specific about alloca sizes. 
llvm-svn: 18309
 2004-11-28 20:44:37 +00:00
Chris Lattner
c137c9ac39 Prototype these functions more accurately 
llvm-svn: 16432
 2004-09-20 04:43:15 +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
59aff88abe Implement DeadStoreElim/alloca.llx by observing that allocas are dead at the 
end of the function (either return or unwind)

llvm-svn: 15232
 2004-07-26 06:14:11 +00:00
Chris Lattner
a259f9201c * Substantially simplify how free instructions are handled (potentially fixing 
a bug in DSE).
* Delete dead operand uses iteratively instead of recursively, using a
  SetVector.
* Defer deletion of dead operand uses until the end of processing, which means
  we don't have to bother with updating the AliasSetTracker.  This speeds up
  DSE substantially.

llvm-svn: 15204
 2004-07-25 11:09:56 +00:00
Chris Lattner
0a9d5e6f14 Free instructions kill values too. This implements DeadStoreElim/free.llx 
llvm-svn: 15199
 2004-07-25 07:58:38 +00:00
Chris Lattner
29e97f36bf obvious fix 
llvm-svn: 15162
 2004-07-24 07:51:27 +00:00
Chris Lattner
7e9731bc4f This is a trivial dead store elimination pass. It very very simple and 
can be improved in many ways.  But: stop laughing, even with -basicaa it
deletes 15% of the stores in 252.eon :)

llvm-svn: 15101
 2004-07-22 08:00:28 +00:00