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116 Commits

Author SHA1 Message Date
Bill Wendling
c4b5d8e1c3 Remove unused function. 
llvm-svn: 53090
 2008-07-03 07:10:03 +00:00
Devang Patel
7a65306299 Remove extra FIXME 
llvm-svn: 53087
 2008-07-03 06:50:04 +00:00
Devang Patel
889fe6f848 Reconstruct dom info, if loop is unswitched. 
llvm-svn: 53086
 2008-07-03 06:48:21 +00:00
Devang Patel
f999e47e64 LoopUnswitch does not preserve dominator info in all cases. 
llvm-svn: 53085
 2008-07-03 05:55:03 +00:00
Devang Patel
f9e8484756 Undo previous patch. It is not that simple to fix dom info here. 
llvm-svn: 53062
 2008-07-03 00:08:13 +00:00
Devang Patel
db4a6944ec Preserve dom info while simplifing loop after the unswitch. 
llvm-svn: 53052
 2008-07-02 22:58:54 +00:00
Devang Patel
5d8e832471 reuse vectors. 
llvm-svn: 53007
 2008-07-02 01:44:29 +00:00
Devang Patel
9140e998b4 Fix comment. 
llvm-svn: 53006
 2008-07-02 01:31:19 +00:00
Devang Patel
68d9a25bcd Preserve loop data so that it is not fetched everytime it is needed. 
Keep track of currentLoop.

llvm-svn: 53005
 2008-07-02 01:18:13 +00:00
Devang Patel
8f157a3670 Preserve dominance frontier while trivially unswitching loop. 
llvm-svn: 52438
 2008-06-18 02:16:38 +00:00
Devang Patel
b1798d2be0 Update dom tree. Fix PR 2372. 
llvm-svn: 51887
 2008-06-02 22:52:56 +00:00
Dan Gohman
8b6f4366ae Tidy up BasicBlock::getFirstNonPHI, and change a bunch of places to 
use it instead of duplicating its functionality.

llvm-svn: 51499
 2008-05-23 21:05:58 +00:00
Dan Gohman
bab18cae46 Clean up the use of static and anonymous namespaces. This turned up 
several things that were neither in an anonymous namespace nor static
but not intended to be global.

llvm-svn: 51017
 2008-05-13 00:00:25 +00:00
Dan Gohman
d4a670284c Make several variable declarations static. 
llvm-svn: 50696
 2008-05-06 01:53:16 +00:00
Nick Lewycky
1f831c0f57 Remove 'unwinds to' support from mainline. This patch undoes r47802 r47989 
r48047 r48084 r48085 r48086 r48088 r48096 r48099 r48109 and r48123.

llvm-svn: 50265
 2008-04-25 16:53:59 +00:00
Chris Lattner
34894abd7f fit some more code in 80 cols. 
llvm-svn: 50016
 2008-04-21 00:25:49 +00:00
Gabor Greif
6c6b8a57f3 API changes for class Use size reduction, wave 1. 
Specifically, introduction of XXX::Create methods
for Users that have a potentially variable number of
Uses.

llvm-svn: 49277
 2008-04-06 20:25:17 +00:00
Nick Lewycky
50c8d20ca2 Update the block cloner which fixes bugpoint on code using unwind_to (phew!) 
and also update the cloning interface's major user, the loop optimizations.

llvm-svn: 48088
 2008-03-09 05:24:34 +00:00
Chris Lattner
ad9a6ccb83 Remove attribution from file headers, per discussion on llvmdev. 
llvm-svn: 45418
 2007-12-29 20:36:04 +00:00
David Greene
3f3a521a33 Get rid of annoying spaces. 
llvm-svn: 45100
 2007-12-17 17:40:29 +00:00
Owen Anderson
43d4a82d4b Make LoopInfoBase more generic, in preparation for having MachineLoopInfo. This involves a small interface change. 
llvm-svn: 44348
 2007-11-27 03:43:35 +00:00
Devang Patel
b13057acf6 Do not walk invalid iterator. 
llvm-svn: 42812
 2007-10-09 21:31:36 +00:00
Devang Patel
36b68478cb Fix bug in updating dominance frontier after loop 
unswitch when frontier includes basic blocks that 
are not inside loop.

llvm-svn: 42654
 2007-10-05 22:29:34 +00:00
Devang Patel
5efcf79cf3 Fix 80 col violation. 
llvm-svn: 42591
 2007-10-03 21:17:43 +00:00
Devang Patel
1e2cced8b9 Refactor code in a separate method. 
llvm-svn: 42590
 2007-10-03 21:16:08 +00:00
Devang Patel
632653ce8f Update aux. info associated with an instruction before erasing instruction. 
llvm-svn: 42180
 2007-09-20 23:45:50 +00:00
Devang Patel
f06e667e9c Use SmallVector instead of std::vector. 
llvm-svn: 41207
 2007-08-21 00:31:24 +00:00
David Greene
7eea029403 Fix GLIBCXX_DEBUG error triggered by incrementing erased iterator. 
llvm-svn: 40897
 2007-08-07 16:44:38 +00:00
Chris Lattner
25a8bfdedb wrap some long lines. Major offenders that are left include 
gvn, gvnpre, dse, and predsimplify.  To see these, use:

  make check-line-length

llvm-svn: 40738
 2007-08-02 16:53:43 +00:00
Devang Patel
937b07fb5e Update dominator info for the middle blocks created while spliting 
exit edge to preserve LCSSA.

Fix dominance frontier update during loop unswitch. This fixes PR 1589, again

llvm-svn: 40737
 2007-08-02 15:25:57 +00:00
Devang Patel
f21f509c2c Undo previous check-in. 
llvm-svn: 40698
 2007-08-01 23:24:50 +00:00
Devang Patel
51c61e730a Update dominator info for the middle blocks created while spliting 
exit edge to preserve LCSSA.

Fix dominance frontier update during loop unswitch. This fixes PR 1589.

llvm-svn: 40695
 2007-08-01 22:23:50 +00:00
Dan Gohman
7dd04fb91c More explicit keywords. 
llvm-svn: 40673
 2007-08-01 15:32:29 +00:00
Devang Patel
84e123116e Loop unswitch preserves dom info. 
Use simple analysis interface to preserve analysis info maintained by other loop passes.

llvm-svn: 40627
 2007-07-31 08:03:26 +00:00
Devang Patel
069a8d9716 If loop can be unswitched again, then do it yourself. 
llvm-svn: 40609
 2007-07-30 23:07:10 +00:00
Devang Patel
81c015b472 Remove dead code. 
llvm-svn: 40606
 2007-07-30 21:10:44 +00:00
Chuck Rose III
4a3a018844 VStudio compiler errors and placing Function*->ExFunc map under ManagedStatic control. 
This commit fixes two things.  One is a pair of VStudio compiler errors stemming from variables
which defined within the for loop statement and also within the body of the for loop.  I fixed these 
by renaming one of the two variables.  Additionally, I've made the Function*->ExFunc map in 
ExternalFunctions.cpp a ManagedStatic object, so that cleanup will be done on llvm_shutdown.  In repeated
uses of the interpreter, where the same Function* address may get used for completely differnet functions,
this was causing a crash.

llvm-svn: 40558
 2007-07-27 18:26:35 +00:00
Devang Patel
ef7c515e9a Fix typo. 
llvm-svn: 40025
 2007-07-18 23:50:19 +00:00
Devang Patel
b5482a65c9 Fix dominator info update to accommodate CFG changes. 
This fixes PR1559.

llvm-svn: 40024
 2007-07-18 23:48:20 +00:00
Devang Patel
cfdf3b6eff Disable claims to preserve analysis until open issues are resolved. 
llvm-svn: 39834
 2007-07-13 21:53:42 +00:00
Devang Patel
91939a6a55 These rountines are now available as part of basic block utilities. 
llvm-svn: 37955
 2007-07-06 22:03:47 +00:00
Devang Patel
2a1af2196d Preserve DominanceFrontier. 
llvm-svn: 37820
 2007-06-29 23:11:49 +00:00
Devang Patel
8292a2ee90 Do not filter loop if candidate branch is in loop header. 
llvm-svn: 37792
 2007-06-29 01:39:53 +00:00
Devang Patel
03d844eebd - 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.

llvm-svn: 37772
 2007-06-28 02:05:46 +00:00
Devang Patel
7f468af921 Update LoopUnswitch pass to preserve DomiantorTree. 
llvm-svn: 37771
 2007-06-28 00:49:00 +00:00
Devang Patel
50d5420cdc If a condition is not inside a loop then the condition is suitable 
to loop unswitch candidate for the loop.

llvm-svn: 37770
 2007-06-28 00:44:10 +00:00
Devang Patel
61661c6774 Avoid non-trivial loop unswitching while optimizing for size. 
llvm-svn: 37446
 2007-06-06 00:21:03 +00:00
Devang Patel
1f12d0b50c Fix PR1333 
Testcases :
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070507/049451.html
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070507/049452.html

llvm-svn: 36955
 2007-05-09 08:24:12 +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