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Commit Graph

60 Commits

Author SHA1 Message Date
Dan Gohman
3c155aa3cd Update various Loop optimization passes to cope with the possibility that
LoopSimplify form may not be available.

llvm-svn: 86175
2009-11-05 21:11:53 +00:00
Dan Gohman
0c3b2f8419 Call getAnalysis<LoopInfo> the normal way, instead of asking passed-in
LoopPassManager for it.

llvm-svn: 86163
2009-11-05 19:43:25 +00:00
Dan Gohman
0079f87732 Rename forgetLoopBackedgeTakenCount to forgetLoop, because it
clears out more information than just the stored backedge taken count.

llvm-svn: 85664
2009-10-31 15:04:55 +00:00
Dan Gohman
7e7f34ab55 Fix a typo in a comment.
llvm-svn: 85120
2009-10-26 15:55:24 +00:00
Dan Gohman
1e96c6acaf Rename isLoopExit to isLoopExiting, for consistency with the wording
used elsewhere - an exit block is a block outside the loop branched to
from within the loop. An exiting block is a block inside the loop that
branches out.

llvm-svn: 85019
2009-10-24 23:34:26 +00:00
Dan Gohman
477456910a Rewrite LoopRotation's SSA updating code using SSAUpdater.
llvm-svn: 85016
2009-10-24 23:19:52 +00:00
Dan Gohman
fa43cefae4 Tell ScalarEvolution to forget everything it knows about a loop before
rotating the loop, since loop rotation is a very significant change.

llvm-svn: 82901
2009-09-27 15:37:03 +00:00
Nick Lewycky
d21c325f09 Instruction::clone does not need to take an LLVMContext&. Remove that and
update all the callers.

llvm-svn: 82889
2009-09-27 07:38:41 +00:00
Dan Gohman
0357e0117e Fix SplitCriticalEdge to properly update LCSSA form when splitting a
loop exit edge -- new PHIs may be needed not only for the additional
splits that are made to preserve LoopSimplify form, but also for the
original split. Factor out the code that inserts new PHIs so that it
can be used for both. Remove LoopRotation.cpp's code for manually
updating LCSSA form, as it is now redundant. This fixes PR4934.

llvm-svn: 81363
2009-09-09 18:18:18 +00:00
Chris Lattner
5f54c5bd1c eliminate VISIBILITY_HIDDEN from Transforms/Scalar. PR4861
llvm-svn: 80766
2009-09-02 06:11:42 +00:00
Owen Anderson
9df206d02d Push LLVMContexts through the IntegerType APIs.
llvm-svn: 78948
2009-08-13 21:58:54 +00:00
Devang Patel
625352f701 Fix dom frontier update. This fixes PR4667.
Patch by Jakub Staszak.

llvm-svn: 78388
2009-08-07 17:16:44 +00:00
Owen Anderson
cc287b28c9 Get rid of the Pass+Context magic.
llvm-svn: 76702
2009-07-22 00:24:57 +00:00
Owen Anderson
49226b1075 This started as a small change, I swear. Unfortunately, lots of things call the [I|F]CmpInst constructors. Who knew!?
llvm-svn: 75200
2009-07-09 23:48:35 +00:00
Dan Gohman
a753bd44ff More minor code simplifications.
llvm-svn: 74395
2009-06-27 21:23:40 +00:00
Dan Gohman
71b1c43d91 Change this code to a form about which VC++ reportedly isn't unhappy.
llvm-svn: 74243
2009-06-26 00:35:12 +00:00
Dan Gohman
3983d5070b Minor code simplification.
llvm-svn: 74240
2009-06-26 00:26:03 +00:00
Dan Gohman
68902a1ad2 Reword a few comments.
llvm-svn: 74146
2009-06-25 00:22:44 +00:00
Devang Patel
ff51ec061c Do not count DbgInfoIntrinsic while estimating loop header size.
llvm-svn: 66245
2009-03-06 03:51:30 +00:00
Duncan Sands
aee16d4916 Rename getAnalysisToUpdate to getAnalysisIfAvailable.
llvm-svn: 63198
2009-01-28 13:14:17 +00:00
Chris Lattner
5549fb4e74 Fix PR3408 by making a non-obvious assumption very obvious, and
handling the flaw inherent in that assumption.  :)

llvm-svn: 62984
2009-01-26 02:11:30 +00:00
Chris Lattner
e9c2c98b59 More cleanups and simplifications, no functionality change.
llvm-svn: 62983
2009-01-26 01:57:01 +00:00
Chris Lattner
1e52603152 tidy asserts
llvm-svn: 62982
2009-01-26 01:38:24 +00:00
Daniel Dunbar
5447f9679d Change create*Pass factory functions to return Pass* instead of
LoopPass*.
 - Although less precise, this means they can be used in clients
   without RTTI (who would otherwise need to include LoopPass.h, which
   eventually includes things using dynamic_cast). This was the
   simplest solution that presented itself, but I am happy to use a
   better one if available.

llvm-svn: 58010
2008-10-22 23:32:42 +00:00
Dan Gohman
e1f9be27bc Tidy up several unbeseeming casts from pointer to intptr_t.
llvm-svn: 55779
2008-09-04 17:05:41 +00:00
Dan Gohman
6564581be0 Enable first-class aggregates support.
Remove the GetResultInst instruction. It is still accepted in LLVM assembly
and bitcode, where it is now auto-upgraded to ExtractValueInst. Also, remove
support for return instructions with multiple values. These are auto-upgraded
to use InsertValueInst instructions.

The IRBuilder still accepts multiple-value returns, and auto-upgrades them
to InsertValueInst instructions.

llvm-svn: 53941
2008-07-23 00:34:11 +00:00
Dan Gohman
01679b25c0 Avoid using BasicBlock::getInstList directly in a few places.
llvm-svn: 52497
2008-06-19 17:37:25 +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
Gabor Greif
48ffb6c7dc Fix a bunch of 80col violations that arose from the Create API change. Tweak makefile targets to find these better.
llvm-svn: 51143
2008-05-15 10:04:30 +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
Chris Lattner
e45796cb56 add a FIXME so we remember to eventually remove this code.
llvm-svn: 50582
2008-05-02 17:18:31 +00:00
Dale Johannesen
d758175889 Don't try to create PHIs of struct types. Fallout
from x86-64 calling convention work.

llvm-svn: 50545
2008-05-01 22:27:44 +00:00
Owen Anderson
8aaa632351 Revert r49614. As Dan pointed out, some of these aren't correct.
llvm-svn: 49657
2008-04-14 17:38:21 +00:00
Owen Anderson
b54defaff0 Replace calls of the form V1->setName(V2->getName()) with V1->takeName(V2),
which is significantly more efficient.

llvm-svn: 49614
2008-04-13 19:15:17 +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
Devang Patel
01f9252f73 Fix PR2028
llvm-svn: 47150
2008-02-15 01:24:49 +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
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
Nick Lewycky
a734aa84f3 typo
llvm-svn: 44262
2007-11-21 05:21:54 +00:00
Devang Patel
f06e667e9c Use SmallVector instead of std::vector.
llvm-svn: 41207
2007-08-21 00:31:24 +00:00
Devang Patel
84144042b2 Loop Rotation pass preserves dominator tree and frontier.
llvm-svn: 40603
2007-07-30 20:22:53 +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
f26f0ea111 Preserve analysis info.
llvm-svn: 39767
2007-07-11 23:47:28 +00:00
Nick Lewycky
dc39ec317a Back out Devang's fix for PR1320 because it causes PR1542.
llvm-svn: 37966
2007-07-07 16:23:34 +00:00
Devang Patel
8803061b9e Request DominanceFrontiner in advance.
llvm-svn: 37954
2007-07-06 21:43:22 +00:00
Devang Patel
a7af16c808 Preserve various analysis info.
llvm-svn: 37953
2007-07-06 21:40:13 +00:00
Dan Gohman
167379e73a Fix typos.
llvm-svn: 36994
2007-05-11 21:10:54 +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