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13 Commits

Author SHA1 Message Date
Chris Lattner dc4ffef633 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 b1c9317bb4 Remove trailing whitespace 
llvm-svn: 21427
 2005-04-21 23:48:37 +00:00
Chris Lattner d8e20188c6 Adjust to changes in instruction interfaces. 
llvm-svn: 19900
 2005-01-29 00:39:08 +00:00
Chris Lattner fdfe3e49fe Fix uint64_t -> unsigned VS warnings. 
llvm-svn: 19381
 2005-01-08 19:42:22 +00:00
Chris Lattner 13516fe2e7 Fix PR491 and testcase Transforms/DeadStoreElimination/2004-12-28-PartialStore.ll 
llvm-svn: 19180
 2004-12-29 04:36:02 +00:00
Chris Lattner 6ea2888832 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 3e86084641 Prototype these functions more accurately 
llvm-svn: 16432
 2004-09-20 04:43:15 +00:00
Reid Spencer 7c16caa336 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 f29807169a 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 7b25bcdf52 * 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 4c1c1ac7e4 Free instructions kill values too. This implements DeadStoreElim/free.llx 
llvm-svn: 15199
 2004-07-25 07:58:38 +00:00
Chris Lattner bad6478b00 obvious fix 
llvm-svn: 15162
 2004-07-24 07:51:27 +00:00
Chris Lattner 3844c300de 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