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3294 Commits

Author SHA1 Message Date
Owen Anderson
df30b63663 Fix a typo that was killing GVNPRE of select instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37871 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-04 18:26:18 +00:00
Owen Anderson
9eee94c5f7 Fix an error in phi translation of GEPs that was causing failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37868 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-04 04:51:16 +00:00
Owen Anderson
5653322e72 Add support for performing GVNPRE on GEP instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37862 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-03 23:51:19 +00:00
Owen Anderson
eb21686ea9 Add functionality to value number GEP instructions. This also provides the infrastructure that will 
be used for function calls.  NOTE: This does not yet do any transformation of GEPs or function calls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37860 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-03 22:50:56 +00:00
Owen Anderson
3d6fac3993 Make the unary operator case a bit faster, since casts are the only kind of unary operation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37857 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-03 19:01:42 +00:00
Owen Anderson
216394f9b3 Add support for performing GVNPRE on cast instructions, and add a testcase for this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37856 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-03 18:37:08 +00:00
Devang Patel
f34a43acc0 Preserve DominanceFrontier. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37820 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-29 23:11:49 +00:00
David Greene
c08fa28897 Fix reference to iterator invalidated by an erase operation. Uncovered 
by _GLIBCXX_DEBUG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37796 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-29 02:53:16 +00:00
Devang Patel
6c631988c7 Do not filter loop if candidate branch is in loop header. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37792 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-29 01:39:53 +00:00
Owen Anderson
ca6c31cc41 Add support for value numbering (but not actually optimizing) cast instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37789 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-29 00:51:03 +00:00
Owen Anderson
40dc00eb82 Add a type field to expressions in preparation for performing GVNPRE on casts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37788 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-29 00:40:05 +00:00
Owen Anderson
890e1a0401 Add support for performing GVNPRE on select instructions. This fixes test/Transforms/GVNPRE/select.ll. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37783 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-28 23:51:21 +00:00
Devang Patel
eb62eca503 - Undo previous check and allow loop switch for condtion that is not inside 
loop.
- Avoid loop unswich for loop header branch.
- While cloning dominators fix typo and handle self dominating blocks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37772 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-28 02:05:46 +00:00
Devang Patel
cce624a7a9 Update LoopUnswitch pass to preserve DomiantorTree. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37771 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-28 00:49:00 +00:00
Devang Patel
558f1b8439 If a condition is not inside a loop then the condition is suitable 
to loop unswitch candidate for the loop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37770 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-28 00:44:10 +00:00
Owen Anderson
a20f35d2e7 Make many sets a much more reasonable size. This decreases the time to optimize 
Anton's testcase from 35.5s to 34.7s.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37769 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-28 00:34:34 +00:00
Owen Anderson
68cb52e468 Use cached information that has already been computed to make clean() simpler and faster. This is a small speedup on most cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37761 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 17:38:29 +00:00
Owen Anderson
7b317d2f59 Fold a lot of code into two cases: binary instructions and ternary instructions. 
This saves many lines of code duplication.  No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37759 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 17:03:03 +00:00
Zhou Sheng
0d7d3656f3 Fix a bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37751 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 09:50:26 +00:00
Owen Anderson
62cf8babdb Add support for performing GVNPRE on the three vector-specific operations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37745 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 04:10:46 +00:00
Owen Anderson
6032a5ba64 1. Correct some comments and clean up some dead code. 
2. When calculating ANTIC_IN, only iterate the changed blocks.  For most average
inputs this is a small speedup, but for cases with unusual CFGs, this can be a significant win.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37742 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-26 23:29:41 +00:00
Chris Lattner
ba6801e6e7 fix Transforms/Inline/2007-06-25-WeakInline.ll by not inlining functions 
with weak linkage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37723 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-25 21:50:09 +00:00
Owen Anderson
9030d384c4 Use the built-in postorder iterators rather than computing a postorder walk by hand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37721 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-25 18:25:31 +00:00
Owen Anderson
f62c44a38d 1) Fix an issue with non-deterministic iteration order in phi_translate 
2) Remove some maximal-set computing code that is no longer used.
3) Use a post-order CFG traversal to compute ANTIC_IN instead of a postdom traversal.
This causes the ANTIC_IN calculation to converge much faster.  Thanks to Daniel Berlin for suggesting this.

With this patch, the time to optimize 403.gcc decreased from 17.5s to 7.5s, and Anton's huge
testcase decreased from 62 minutes to 38 seconds.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37714 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-25 05:41:12 +00:00
Nick Lewycky
4390feb7ae Fix value ranges. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37713 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-24 20:14:22 +00:00
Owen Anderson
79a6370133 Fix a silly mistake that was causing failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37712 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-24 08:42:24 +00:00
Nick Lewycky
dea252689d Remove tabs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37710 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-24 04:40:16 +00:00
Nick Lewycky
984504b912 Remove use of ETForest. Also cleaned up issues around unreachable basic 
blocks, and optimizing within one basic block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37709 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-24 04:36:20 +00:00
Owen Anderson
647580483c Rework topo_sort so eliminate some behavior that scaled terribly. This reduces the time to optimize 403.gcc from 18.2s to 17.5s, 
and has an even larger effect on larger testcases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37708 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-22 21:31:16 +00:00
Owen Anderson
2106f61f23 Perform fewer set insertions while calculating ANTIC_IN. This reduces the amount of time to optimize 403.gcc from 21.9s to 18.2s. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37707 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-22 18:27:04 +00:00
Owen Anderson
b3b37345de Remove some code that I was using for collecting performance information that should not have been committed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37706 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-22 17:04:40 +00:00
Owen Anderson
124084604d Avoid excessive calls to find_leader when calculating AVAIL_OUT. This reduces the time to optimize 403.gcc from 23.5s to 21.9s. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37702 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-22 03:14:03 +00:00
Owen Anderson
e8138ffeaf Reserve space in vectors before topologically sorting into them. This improves the time to optimize 403.gcc from 28s to 23.5s. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37699 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-22 00:43:22 +00:00
Owen Anderson
82575d8ab1 Make a bunch of optimizations for compile time to GVNPRE, including smarter set unions, deferring blocks rather than computing maximal sets, and smarter use of sets. With these enhancements, the time to optimize 273.perlbmk goes from 5.3s to 2.7s. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37698 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-22 00:20:30 +00:00
Chris Lattner
1dbfd48fa2 Significantly improve the documentation of the instcombine divide/compare 
transformation.  Also, keep track of which end of the integer interval overflows
occur on.  This fixes Transforms/InstCombine/2007-06-21-DivCompareMiscomp.ll
and rdar://5278853, a miscompilation of perl.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37692 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-21 18:11:19 +00:00
Owen Anderson
66fd906074 Change lots of sets from std::set to SmallPtrSet. This reduces the time required to optimize 253.perlbmk from 10.9s to 5.3s. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37690 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-21 17:57:53 +00:00
Devang Patel
0e7f728ad1 Move code to update dominator information after basic block is split 
from LoopSimplify.cpp to Dominator.cpp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37689 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-21 17:23:45 +00:00
Owen Anderson
58e087b6e3 Eliminate a redundant check. This speeds up optimization of 253.perlbmk from 13.5 seconds to 10.9 seconds. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37683 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-21 01:59:05 +00:00
Owen Anderson
9cb56014ce Comment-ize the functions in GVNPRE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37681 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-21 00:19:05 +00:00
Chris Lattner
562ef78df2 refactor a bunch of code out of visitICmpInstWithInstAndIntCst into its own 
routine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37679 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-20 23:46:26 +00:00
Owen Anderson
3eaca716bf Split runOnFunction into many smaller functions. This make it easier to get accurate performance analysis of GVNPRE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37678 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-20 22:10:02 +00:00
Owen Anderson
0304b2bc2b Make GVNPRE accurate report whether it modified the function or not. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37673 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-20 18:30:20 +00:00
Owen Anderson
5dbea73e35 Get rid of an unneeded helper function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37670 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-20 00:43:33 +00:00
Owen Anderson
4f703ec0a1 Use a DenseMap instead of an std::map for the value numbering. This reduces the time to optimize lencod on a PPC Debug build from ~300s to ~140s. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37668 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 23:23:54 +00:00
Owen Anderson
52471b102c Make dependsOnInvoke much more specific in what it tests, which in turn make it much faster to run. This reduces the time to optimize lencondwith a debug build on PPC from ~450s to ~300s. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37667 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 23:07:16 +00:00
Tanya Lattner
c91c56cf43 Moved Inliner.h to include/llvm/Transforms/IPO/InlinerPass.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37666 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 22:31:52 +00:00
Tanya Lattner
6f7426ec2e Inliner pass header file was moved. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37665 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 22:29:50 +00:00
Dan Gohman
5cec4db6ae Rename ScalarEvolution::deleteInstructionFromRecords to 
deleteValueFromRecords and loosen the types to all it to accept
Value* instead of just Instruction*, since this is what
ScalarEvolution uses internally anyway. This allows more flexibility
for future uses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37657 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 14:28:31 +00:00
Owen Anderson
d0954105f0 Handle constants in phi nodes properly. This fixes test/Transforms/GVNPRE/2007-06-18-ConstantInPhi.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37655 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 07:35:36 +00:00
Chris Lattner
2384d7b179 silence a bogus warning Duraid ran into. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37649 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 05:43:49 +00:00