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581 Commits

Author SHA1 Message Date
Chris Lattner
29874e0dc6 Factor some code into a new FoldSingleEntryPHINodes method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60501 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-03 19:44:02 +00:00
Chris Lattner
7c99f49368 fix a really incorrect comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60492 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-03 19:18:54 +00:00
Chris Lattner
71af9b07a5 Rename DeleteBlockIfDead to DeleteDeadBlock and make it 
unconditionally delete the block.  All likely clients will
do the checking anyway.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60464 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-03 06:40:52 +00:00
Chris Lattner
2b1ba24fb7 Factor some code out of SimplifyCFG, forming a new 
DeleteBlockIfDead method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60463 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-03 06:37:44 +00:00
Chris Lattner
4f02c74a8e Enhance RecursivelyDeleteTriviallyDeadInstructions to optionally 
return a list of deleted instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60193 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-27 23:14:34 +00:00
Chris Lattner
3481f24c06 remove doConstantPropagation and dceInstruction, they are just 
wrappers around the interesting code and use an obscure iterator
abstraction that dates back many many years.

Move EraseDeadInstructions to Transforms/Utils and name it
RecursivelyDeleteTriviallyDeadInstructions.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60191 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-27 22:57:53 +00:00
Chris Lattner
52c95856b4 move FindAvailableLoadedValue from JumpThreading to Transforms/Utils. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60166 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-27 08:10:05 +00:00
Chris Lattner
b29714a10a move MergeBasicBlockIntoOnlyPred to Transforms/Utils. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60162 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-27 07:43:12 +00:00
Devang Patel
dfca407c79 Do not use separate utility to walk all instructions and remove dead dbg intrinsics. Let instcombiner do this job. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59659 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-19 19:01:37 +00:00
Devang Patel
f17fc461d1 Add new helper pass that strips all symbol names except debugging information. 
This pass makes it easier to test wheter debugging info. influences optimization passes or not.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59552 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-18 21:34:39 +00:00
Devang Patel
94b29c3eac Undo previous check-in. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59092 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-11 23:57:33 +00:00
Devang Patel
90d45b8a4a Add utility pass to remove dbg info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59068 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-11 19:33:39 +00:00
Devang Patel
780c38d84f Add utility routines to remove dead debug info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59011 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-11 00:53:02 +00:00
Devang Patel
b7c6bf1e07 Do now allow InlineAlways pass to remove dead functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58744 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-05 01:39:16 +00:00
Dan Gohman
8f027c7fea Add a new pass to simplify specific half_powr function calls. This is 
a specialized pass that it not likely to be generally useful.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58732 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-04 23:41:45 +00:00
Nick Lewycky
579a024661 Add a new MergeFunctions pass. It finds identical functions and merges them. 
This triggers only 60 times in llvm-test (look at .llvm.bc, not .linked.rbc)
and so it probably wont be turned on by default. Also, may of those are likely
to go away when PR2973 is fixed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58557 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-02 05:52:50 +00:00
Daniel Dunbar
c5e1ec47c7 Add InlineCost class for represent the estimated cost of inlining a 
function.
 - This explicitly models the costs for functions which should
   "always" or "never" be inlined. This fixes bugs where such costs
   were not previously respected.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58450 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-30 19:26:59 +00:00
Daniel Dunbar
1a99dbfe3b Factor shouldInline method out of Inliner. 
- No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58355 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-29 01:02:02 +00:00
Daniel Dunbar
f184c66e71 Assorted comment/naming fixes, 80-col violations, and reindentation. 
- No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58352 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-28 23:24:26 +00:00
Torok Edwin
3d54502304 export an ID for the instructionNamer, allowing analysis/transformation passes 
that need it to require it by ID.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58238 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-27 10:16:27 +00:00
Daniel Dunbar
394f0441e0 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58010 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-22 23:32:42 +00:00
Duncan Sands
acdb2eeb45 Remove the MarkModRef pass (use AddReadAttrs instead). 
Unfortunately this means removing one regression test
of GlobalsModRef because I couldn't work out how to
perform it without MarkModRef.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56342 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-19 08:23:44 +00:00
Duncan Sands
9f07a290b9 Add a new pass AddReadAttrs which works out which functions 
can get the readnone/readonly attributes, and gives them it.
The plan is to remove markmodref (which did the same thing
by querying GlobalsModRef) and delete the analogous
functionality from GlobalsModRef.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56341 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-19 08:17:05 +00:00
Dan Gohman
ae73dc1448 Tidy up several unbeseeming casts from pointer to intptr_t. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55779 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 17:05:41 +00:00
Andrew Lenharth
cf996d4b56 Initial version of a Partial Specialization IPO pass. It triggers a couple hundred times on 176.gcc. I don't know the performance impact yet, the heuristic is quite simple still. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55734 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 21:00:28 +00:00
Devang Patel
3d566ddd05 Add missing decls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55719 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 20:24:05 +00:00
Duncan Sands
3cd652d530 Add a small pass that sets the readnone/readonly 
attributes on functions, based on the result of
alias analysis.  It's not hardwired to use
GlobalsModRef even though this is the only (AFAIK)
alias analysis that results in this pass actually
doing something.  Enable as follows:
  opt ... -globalsmodref-aa -markmodref ...
Advantages of this pass: (1) records the result
of globalsmodref in the bitcode, meaning it is
available for use by later passes (currently
the pass manager isn't smart enough to magically
make an advanced alias analysis available to all
later passes), which may expose more optimization
opportunities; (2) hopefully speeds up compilation
when code is optimized twice, for example when a
file is compiled to bitcode, then later LTO is done
on it: marking functions readonly/readnone when
producing the initial bitcode should speed up alias
analysis during LTO; (3) good for discovering that
globalsmodref doesn't work very well :)
Not currently turned on by default.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55604 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-01 11:40:11 +00:00
Chris Lattner
3793325cb3 Add a new trivial -inst-namer pass which makes it possible to diff the 
before/after effects of a pass, crazy!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55230 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-23 06:07:02 +00:00
Owen Anderson
3688f268cb Remove GCSE, ValueNumbering, and LoadValueNumbering. These have been deprecated for almost a year; it's finally time for them to go away. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54822 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-15 21:31:02 +00:00
Owen Anderson
11f2ec8eb5 Make MergeBlockIntoPredecessor more aggressive when the same successor appears 
more than once.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53731 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-17 19:42:29 +00:00
Owen Anderson
b31b06d04b Factor MergeBlockIntoPredecessor out into BasicBlockUtils. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53705 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-17 00:01:40 +00:00
Dan Gohman
58ca8d55d4 Correct a top-level comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53685 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 16:03:31 +00:00
Chris Lattner
46868c07bb Reapply r53540, now with the matching header! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53557 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 17:32:59 +00:00
Chris Lattner
de29d92420 whitespace fix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53537 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 00:28:45 +00:00
Chris Lattner
6838d8726e doxygenate comments and wrap to 80 cols. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53536 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 00:27:31 +00:00
Dan Gohman
1002c02034 Add explicit keywords. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53179 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 18:00:37 +00:00
Matthijs Kooijman
65c9216a39 Add missing semicolumn in my last commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52780 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-26 09:49:38 +00:00
Matthijs Kooijman
b0ed11f4a0 Improve comments wrt createInternalize. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52779 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-26 09:48:11 +00:00
Matthijs Kooijman
4e78908b94 Rename a few variables to be more consistent. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52672 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-24 09:14:10 +00:00
Evan Cheng
652f7ea955 Revert 51775. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51795 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-30 22:47:19 +00:00
Evan Cheng
babf11f249 Patches for building llvm on Solaris x86. Contributed by Nathan Keynes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51775 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-30 17:16:20 +00:00
Dan Gohman
1baa88e3de Prune and tidy #includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51697 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-29 19:52:31 +00:00
Devang Patel
ef3682a4fb Simplify internalize pass. Add test case. 
Patch by Matthijs Kooijman!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51114 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-14 20:01:01 +00:00
Dan Gohman
816cdf6bb2 Commit the header I accidentally left out of 51083. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51093 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-14 04:39:40 +00:00
Dan Gohman
9c78a39907 Whitespace cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51089 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-14 00:43:10 +00:00
Dan Gohman
6ddba2b933 Change class' public PassInfo variables to by initialized with the 
address of the PassInfo directly instead of calling getPassInfo.
This eliminates a bunch of dynamic initializations of static data.

Also, fold RegisterPassBase into PassInfo, make a bunch of its
data members const, and rearrange some code to initialize data
members in constructors instead of using setter member functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51022 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-13 02:05:11 +00:00
Dan Gohman
84b7df43fb Remove uses of llvm/System/IncludeFile.h that are no longer needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50695 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-06 01:32:53 +00:00
Chris Lattner
fd1cbbe9cf Delete the IPO simplify-libcalls and completely reimplement it as 
a FunctionPass.  This makes it simpler, fixes dozens of bugs, adds
a couple of minor features, and shrinks is considerably: from
2214 to 1437 lines.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50520 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-01 06:25:24 +00:00
Owen Anderson
0396cd33ca Rename DeadLoopElimination to LoopDeletion, part 2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50437 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-29 20:06:54 +00:00
Owen Anderson
0ff7708a5b Add dead loop elimination, which removes dead loops for which we can compute 
the trip count.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50382 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-29 00:38:34 +00:00
Chris Lattner
54b9c3ba2a Move SplitBlockPredecessors out of loopsimplify into BasicBlockUtils.h 
as a global helper function.  At the same type, switch it from taking
a vector of predecessors to an arbitrary sequential input.  This allows
us to switch LoopSimplify to use a SmallVector for various temporary
vectors that it passed into SplitBlockPredecessors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50020 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-21 01:28:02 +00:00
Chris Lattner
8383a7b7a6 Add a new Jump Threading pass, which will handle cases 
such as those in PR2235.  Right now the pass is not very
effective. :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50000 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-20 20:35:01 +00:00
Chris Lattner
bcd203cf86 Allow argpromote to promote struct arguments with a specified number 
of elements.  Patch by Matthijs Kooijman!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49962 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-19 19:50:01 +00:00
Owen Anderson
a723d1e48f Factor a bunch of functionality related to memcpy and memset transforms out of 
GVN and into its own pass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49419 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-09 08:23:16 +00:00
Evan Cheng
8d84d5b62c Increasing the inline limit from (overly conservative) 200 to 300. Given each BB costs 20 and each instruction costs 5, 200 means a 4 BB function + 24 instructions (actually less because caller's size also contributes to it). 
Furthermore, double the limit when more than 10% of the callee instructions are vector instructions. Multimedia kernels tend to love inlining.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48725 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-24 06:37:48 +00:00
Andrew Lenharth
7623716e61 FunctionExtractorPass has been superceded by GVExtractorPass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48648 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-21 16:46:53 +00:00
Andrew Lenharth
d245a8ae47 add a pass that can extract all kinds of global values, not just functions. Update llvm-extract to use it and optionally extract a global variable if you want it too 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48015 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-07 19:51:57 +00:00
Gabor Greif
29d8aa7877 fix typos 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47994 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-06 10:36:00 +00:00
Devang Patel
ca891ecf91 Add pass to promote sret. 
This pass transforms 

  %struct._Point = type { i32, i32, i32, i32, i32, i32 }
  define internal void @foo(%struct._Point* sret  %agg.result)

into

  %struct._Point = type { i32, i32, i32, i32, i32, i32 }
  define internal %struct._Point @foo()

This pass updates foo() clients appropriately to use
getresult instruction to extract return values.

This pass is not yet ready for prime time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47776 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-29 23:34:08 +00:00
Chris Lattner
6110224fa6 prune #includes, fit in 80 cols. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47556 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-25 19:21:38 +00:00
Chris Lattner
75542bd56b remove the LowerSelect pass. The last client was the old Sparc backend, which is long dead by now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47323 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 07:49:17 +00:00
Chris Lattner
15f166c7b6 remove the lower packed pass. It can never work and even the parts that 
could work don't work fully.  This fixes PR1705.  Oh yeah, we don't have
packed types anymore either ;-)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47322 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 07:39:17 +00:00
Bill Wendling
beefd3d0f8 The CorrelatedExpressionElimination pass is known to be buggy. Remove it. 
This fixes PR1769.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46408 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-27 06:11:41 +00:00
Chris Lattner
120d053e3b Allow clients to specify the inline threshold when creating 
the inliner pass.  Patch by Robert Zeh.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45903 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-12 06:49:13 +00:00
Chris Lattner
3dab223dc9 don't include loopinfo.h from this file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45858 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 06:30:04 +00:00
Gordon Henriksen
8fa8929177 With this patch, the LowerGC transformation becomes the 
ShadowStackCollector, which additionally has reduced overhead with
no sacrifice in portability.

Considering a function @fun with 8 loop-local roots,
ShadowStackCollector introduces the following overhead
(x86):

; shadowstack prologue
        movl    L_llvm_gc_root_chain$non_lazy_ptr, %eax
        movl    (%eax), %ecx
        movl    $___gc_fun, 20(%esp)
        movl    $0, 24(%esp)
        movl    $0, 28(%esp)
        movl    $0, 32(%esp)
        movl    $0, 36(%esp)
        movl    $0, 40(%esp)
        movl    $0, 44(%esp)
        movl    $0, 48(%esp)
        movl    $0, 52(%esp)
        movl    %ecx, 16(%esp)
        leal    16(%esp), %ecx
        movl    %ecx, (%eax)

; shadowstack loop overhead
        (none)

; shadowstack epilogue
        movl    48(%esp), %edx
        movl    %edx, (%ecx)

; shadowstack metadata
        .align  3
___gc_fun:                              # __gc_fun
        .long   8
        .space  4

In comparison to LowerGC:

; lowergc prologue
        movl    L_llvm_gc_root_chain$non_lazy_ptr, %eax
        movl    (%eax), %ecx
        movl    %ecx, 48(%esp)
        movl    $8, 52(%esp)
        movl    $0, 60(%esp)
        movl    $0, 56(%esp)
        movl    $0, 68(%esp)
        movl    $0, 64(%esp)
        movl    $0, 76(%esp)
        movl    $0, 72(%esp)
        movl    $0, 84(%esp)
        movl    $0, 80(%esp)
        movl    $0, 92(%esp)
        movl    $0, 88(%esp)
        movl    $0, 100(%esp)
        movl    $0, 96(%esp)
        movl    $0, 108(%esp)
        movl    $0, 104(%esp)
        movl    $0, 116(%esp)
        movl    $0, 112(%esp)

; lowergc loop overhead
        leal    44(%esp), %eax
        movl    %eax, 56(%esp)
        leal    40(%esp), %eax
        movl    %eax, 64(%esp)
        leal    36(%esp), %eax
        movl    %eax, 72(%esp)
        leal    32(%esp), %eax
        movl    %eax, 80(%esp)
        leal    28(%esp), %eax
        movl    %eax, 88(%esp)
        leal    24(%esp), %eax
        movl    %eax, 96(%esp)
        leal    20(%esp), %eax
        movl    %eax, 104(%esp)
        leal    16(%esp), %eax
        movl    %eax, 112(%esp)

; lowergc epilogue
        movl    48(%esp), %edx
        movl    %edx, (%ecx)

; lowergc metadata
        (none)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45670 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 01:30:53 +00:00
Chris Lattner
e4b83877d5 back out accidental commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45660 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-06 19:19:32 +00:00
Chris Lattner
2e48a70b35 rename isStore -> mayStore to more accurately reflect what it captures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45656 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-06 08:36:04 +00:00
Owen Anderson
a997c498e0 Didn't mean to commit this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45607 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-05 00:43:37 +00:00
Owen Anderson
d94b6a16fe Move some more functionality from MRegisterInfo to TargetInstrInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45603 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-04 23:57:37 +00:00
Chris Lattner
7ed47a1335 Don't attribute in file headers anymore. See llvmdev for the 
discussion of this change.  Boy are my fingers tired. ;-)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45411 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-29 19:59:42 +00:00
Owen Anderson
019b92a70c Start the process of making MachineLoopInfo possible by templating Loop. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44097 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-14 02:33:58 +00:00
Anton Korobeynikov
18d083f0d1 Make this header public 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43938 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-09 12:16:58 +00:00
Gordon Henriksen
4e1be6d5ea Deleting redundant copy of block extractor pass. See also PR1775. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43694 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-05 01:54:05 +00:00
Anton Korobeynikov
a024e8ceda Reg2Mem cleanup and optimizations: 
- enable phi instructions demotion to stack
 - create alloca instructions in the entry block


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43208 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-21 23:05:16 +00:00
Hartmut Kaiser
efd4a5144b Updated VC++ build system. 
Silenced some VC warnings.

I'm getting linker errors, though: unresolved externals:

llvm::Split<class llvm::BasicBlock *,struct llvm::GraphTraits<class llvm::BasicBlock *> >(class llvm::DominatorTreeBase<class llvm::BasicBlock> &,class llvm::BasicBlock *)

and

llvm::Split<struct llvm::Inverse<class llvm::BasicBlock *>,struct llvm::GraphTraits<struct llvm::Inverse<class llvm::BasicBlock *> > >(class llvm::DominatorTreeBase<class llvm::BasicBlock> &,class llvm::BasicBlock *)

Where are these defined?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43073 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-17 14:56:40 +00:00
Owen Anderson
7e9edda51d Remove RLE from the headers, since the pass itself is gone now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41971 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-14 22:54:46 +00:00
Devang Patel
4bc2a0b420 Add utility to clone loops. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40997 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-10 17:59:47 +00:00
Chris Lattner
942c55bcfe add #ifndef guards 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40990 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-10 15:53:08 +00:00
Devang Patel
a9e9286630 Fix comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40911 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-07 23:16:03 +00:00
Devang Patel
fee76bd9ba Begin loop index split pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40883 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-07 00:25:56 +00:00
Dan Gohman
c2bbfc18e9 More explicit keywords. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40673 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-01 15:32:29 +00:00
Owen Anderson
f6a05f949f Rename FastDSE to just DSE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40668 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-01 06:36:51 +00:00
Devang Patel
29381fb7cd Use SmallPtrSet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40560 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-27 18:34:27 +00:00
Devang Patel
6899b31422 Add BasicInliner interface. 
This interface allows clients to inline bunch of functions with module
level call graph information.:wq



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40486 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-25 18:00:25 +00:00
Owen Anderson
1ad2cb7555 Add a GVN pass, using the value numbering code I developed for GVNPRE and the 
load elimination code from RedundantLoadElimination.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40469 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-24 17:55:58 +00:00
Owen Anderson
a7f98e2919 Rename a lot of things to change FastDLE to RedundantLoadElimination. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40457 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-24 00:17:04 +00:00
Owen Anderson
48a19fb884 Fix a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40446 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-23 21:51:37 +00:00
Owen Anderson
ffe40aa97d Add FastDLE, the load-elimination counterpart of FastDSE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40445 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-23 21:48:08 +00:00
Devang Patel
b4559a2179 Make LCSSA a loop pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39844 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 23:57:11 +00:00
Tanya Lattner
08d14d2469 Adding ability to demote phi to stack. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39744 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 18:41:34 +00:00
Owen Anderson
b77c457cc8 Add FastDSE, a new algorithm for doing dead store elimination. This algorithm is not as accurate 
as the current DSE, but it only a linear scan over each block, rather than quadratic.  Eventually
(once it has been improved somewhat), this will replace the current DSE.

NOTE: This has not yet been extensively tested.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38517 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 00:46:18 +00:00
Devang Patel
ff366850aa Expose struct size threhold to allow users to tweak their own setting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38472 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 21:19:23 +00:00
Devang Patel
8019893c3f Add SplitEdge and SplitBlock utility routines. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37952 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 21:39:20 +00:00
Tanya Lattner
9933e4bd7d Move inliner pass header file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37664 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 22:29:02 +00:00
Devang Patel
f86a73cbef Do not preserve ETForest. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37506 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 00:02:08 +00:00
Devang Patel
4b90e3a276 Do not use ETForest as well as DomiantorTree. DominatorTree is sufficient. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37501 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 22:17:16 +00:00
Devang Patel
326821ef12 Use DominatorTree instead of ETForest. 
This allows faster immediate domiantor walk.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37500 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 21:57:03 +00:00
Devang Patel
980c4e0466 Rename. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37448 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 00:49:02 +00:00
Devang Patel
743f7e8839 Avoid non-trivial loop unswitching while optimizing for size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37446 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 00:21:03 +00:00
Owen Anderson
1f476f4d84 Put GVN-PRE in all the right places. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37352 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-29 23:36:32 +00:00
Nick Lewycky
ecd94c804a Fix typo in comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36873 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-06 13:37:16 +00:00
Devang Patel
1997473cf7 Drop 'const' 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36662 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-03 01:11:54 +00:00
Devang Patel
3e15bf33e0 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36652 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-02 21:39:20 +00:00
Devang Patel
794fd75c67 Do not use typeinfo to identify pass in pass manager. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36632 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-01 21:15:47 +00:00
Devang Patel
c20a64d2bb Mem2Reg does not need TargetData. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36446 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-25 18:41:11 +00:00
Devang Patel
41968df51e Remove unused function argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36441 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-25 17:15:20 +00:00
Owen Anderson
df07335b46 Move more passes to using ETForest instead of DominatorTree. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36271 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-20 06:27:13 +00:00
Owen Anderson
ba43963e96 Completely purge DomSet. This is the (hopefully) final patch for PR1171. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35731 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 07:17:27 +00:00
Owen Anderson
c6fcf29e81 Expunge DomSet from CodeExtractor. This is part of the continuing work 
on PR1171.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35726 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 05:31:27 +00:00
Devang Patel
c4625da483 Add loop rotation pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35714 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 01:25:15 +00:00
Chris Lattner
dbe0deca33 Split the sdisel code munging stuff out into its own opt-pass, CodeGenPrepare. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35528 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-31 04:06:36 +00:00
Devang Patel
5ee9997906 Now IndVarSimplify is a LoopPass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35003 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-07 06:39:01 +00:00
Devang Patel
54959d6cf6 Now LICM is a LoopPass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35001 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-07 04:41:30 +00:00
Devang Patel
3f1a1e0366 Now LoopUnroll is a LoopPass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34996 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-07 01:38:05 +00:00
Devang Patel
1bc89361c2 Now LoopUnswitch is a LoopPass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34992 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-07 00:26:10 +00:00
Devang Patel
0f54dcbf07 Now LoopStrengthReduce is a LoopPass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34984 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-06 21:14:09 +00:00
Chris Lattner
0963ad5271 remove some dead passes and stuff specific to the reoptimizer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34438 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-20 05:31:35 +00:00
Reid Spencer
9d6565a5b1 For PR1195: 
Rename PackedType -> VectorType, ConstantPacked -> ConstantVector, and
PackedTyID -> VectorTyID. No functional changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34293 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-15 02:26:10 +00:00
Reid Spencer
ef9b9a7939 For PR411: 
This patch replaces the SymbolTable class with ValueSymbolTable which does
not support types planes. This means that all symbol names in LLVM must now
be unique. The patch addresses the necessary changes to deal with this and
removes code no longer needed as a result. This completes the bulk of the
changes for this PR. Some cleanup patches will follow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33918 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-05 20:47:22 +00:00
Reid Spencer
7ba98a9000 For PR1072: 
Removing -raise has neglible positive or negative side effects so we are
opting to remove it. See the PR for comparison details.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33844 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-03 23:15:56 +00:00
Chris Lattner
5e665f5594 Switch inliner over to use DenseMap instead of std::map for ValueMap. This 
speeds up the inliner 16%.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33801 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-03 00:08:31 +00:00
Chris Lattner
997c74ce35 move constant folding code out of Utils/Local into libanalysis 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33681 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:46:43 +00:00
Chris Lattner
1dfdf8255e The inliner/cloner can now optionally take TargetData info, which can be 
used by constant folding.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33676 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:22:39 +00:00
Chris Lattner
73259caa44 Change constant folding APIs to take an optional TargetData, and change 
ConstantFoldInstOperands/ConstantFoldCall to take a pointer to an array
of operands + size, instead of an std::vector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33669 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:12:47 +00:00
Anton Korobeynikov
b10308e440 Propagate changes from my local tree. This patch includes: 
1. New parameter attribute called 'inreg'. It has meaning "place this
parameter in registers, if possible". This is some generalization of
gcc's regparm(n) attribute. It's currently used only in X86-32 backend.
2. Completely rewritten CC handling/lowering code inside X86 backend.
Merged stdcall + c CCs and fastcall + fast CC.
3. Dropped CSRET CC. We cannot add struct return variant for each
target-specific CC (e.g. stdcall + csretcc and so on).
4. Instead of CSRET CC introduced 'sret' parameter attribute. Setting in
on first attribute has meaning 'This is hidden pointer to structure
return. Handle it gently'.
5. Fixed small bug in llvm-extract + add new feature to
FunctionExtraction pass, which relinks all internal-linkaged callees
from deleted function to external linkage. This will allow further
linking everything together.

NOTEs: 1. Documentation will be updated soon.
       2. llvm-upgrade should be improved to translate csret => sret.
          Before this, there will be some unexpected test fails.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33597 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-28 13:31:35 +00:00
Devang Patel
c71ca3cdd2 Inherit CallGraphSCCPass directly from Pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33514 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-26 00:47:38 +00:00
Devang Patel
4d447f5121 Inherit BasicBlockPass directly from Pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33511 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-25 23:23:25 +00:00
Chris Lattner
fd0cf61670 remove an old instrumentation pass that is not used anymore. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32997 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-07 18:12:13 +00:00
Reid Spencer
e4d87aa2de For PR950: 
This patch removes the SetCC instructions and replaces them with the ICmp
and FCmp instructions. The SetCondInst instruction has been removed and
been replaced with ICmpInst and FCmpInst.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32751 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-23 06:05:41 +00:00
Jeff Cohen
d41b30def3 Unbreak VC++ build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31464 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-05 19:31:28 +00:00
Chris Lattner
b57de3328d add option to isCriticalEdge 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31258 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-28 06:58:17 +00:00
Chris Lattner
27e1f90d85 Expose a smarter way to break critical edges. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31256 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-28 06:44:56 +00:00
Bill Wendling
1ccc47ec38 Corrected formatting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30942 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-13 20:53:50 +00:00
Duraid Madina
2a0013f59f add setJumpBufSize() and setJumpBufAlignment() to target-lowering. 
Call these from your backend to enjoy setjmp/longjmp goodness, see
lib/Target/IA64/IA64ISelLowering.cpp for an example


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30095 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-04 06:21:35 +00:00
Nick Lewycky
05450ae128 Add PredicateSimplifier pass. Collapses equal variables into one form 
and simplifies expressions. This implements the optimization described
in PR807.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29947 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-28 22:44:55 +00:00
Reid Spencer
62c5105adc For PR885: 
Consolidate the LinkAllAnalyses.h and LinkAllPasses.h headers into one
so there is no dupliation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29787 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-21 05:34:03 +00:00
Jim Laskey
13ec702c43 Introducing plugable register allocators and instruction schedulers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29434 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-01 14:21:23 +00:00
Devang Patel
753d94a1c8 Add new constructor to accept vector of exported names while creating 
InternalizePass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29222 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-07-20 17:48:05 +00:00
Owen Anderson
a452932171 Update some comments, and expose LCSSAID in preparation for having other passes 
require LCSSA.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28734 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-06-08 20:02:53 +00:00
Chris Lattner
191b0ba97e Force anything that #includes llvm/Transforms/Utils/UnifyFunctionExitNodes.h 
to link in the implementation.  Thanks to Anton Korobeynikov for figuring out
what was going on here.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28660 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-06-02 18:40:06 +00:00
Chris Lattner
f72716d81f Implement a new method: CloneAndPruneFunctionInto, as documented. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28518 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-27 01:21:50 +00:00
Chris Lattner
b5a554ec80 Add an interface to constant fold and instruction given it's opcode, type 
and operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28516 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-27 01:17:40 +00:00
Owen Anderson
11f510b577 Skeletal LCSSA pass. This is currently non-functional. Expect functionality 
and documentation updates soo.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28495 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-26 13:58:26 +00:00
Chris Lattner
782e60150e Add a CloneModule call that exposes the mapping of values from the old module 
to the new module.  Patch provided by Nick Lewycky!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28349 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-17 18:05:35 +00:00
Chris Lattner
fd50080fe2 This is a proper fix for the compiler warning. A termination condition is 
not needed, as it can never be reached: an edge must exist.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28282 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-14 02:01:22 +00:00
Reid Spencer
ca960c9946 Fix an infinite loop bug that Vladimir Prus identified. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28281 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-13 18:11:32 +00:00
Chris Lattner
b3674e4753 Add pass ID's for various passes, so they can be AddRequiredID. Patch by 
Domagoj Babic!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28048 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-02 04:24:36 +00:00
Chris Lattner
73173e72d6 remove a dead prototype 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27882 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-20 15:45:54 +00:00
Andrew Lenharth
3433141a3e Add a simple pass to make sure that all (non-library) calls to malloc and free 
are visible to analysis as intrinsics.  That is, make sure someone doesn't pass
free around by address in some struct (as happens in say 176.gcc).

This doesn't get rid of any indirect calls, just ensure calls to free and malloc
are always direct.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27560 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-10 19:26:09 +00:00
Evan Cheng
d1d6b5cce2 For each loop, keep track of all the IV expressions inserted indexed by 
stride. For a set of uses of the IV of a stride which is a multiple
of another stride, do not insert a new IV expression. Rather, reuse the
previous IV and rewrite the uses as uses of IV expression multiplied by
the factor.

e.g.
x = 0 ...; x ++
y = 0 ...; y += 4
then use of y can be rewritten as use of 4*x for x86.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26803 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-16 21:53:05 +00:00
Evan Cheng
d277f2c669 Added target lowering hooks which LSR consults to make more intelligent 
transformation decisions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26738 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-13 23:14:23 +00:00
Chris Lattner
410354fe0c Make the LLVM headers "-ansi -pedantic -Wno-long-long" clean. 
Patch by Martin Partel!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26313 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-22 16:23:43 +00:00
Chris Lattner
ebccc040e5 Remove a level of indirection. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26109 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-10 21:32:11 +00:00
Chris Lattner
85db136695 Remove a never-working pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25348 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-16 01:05:24 +00:00
Chris Lattner
4c2881ecb9 Teach inline function how to update the callgraph when it makes changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25318 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-14 20:05:06 +00:00
Chris Lattner
a4c29d2037 Allow the code cloning interfaces to capture some important info about the 
code being cloned if the client wants.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25281 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-13 18:39:17 +00:00
Andrew Lenharth
bb227c1b79 Added documented rsprofiler interface. Also remove new profiler passes, the 
old ones have been updated to implement the interface.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24499 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-28 18:00:38 +00:00
Andrew Lenharth
701f5ac73c Random sampling (aka Arnold and Ryder) profiling. This is still preliminary, but it works on spec on x86 and alpha. The idea is to allow profiling passes to remember what profiling they inserted, then a random sampling framework is inserted which consists of duplicated basic blocks (without profiling), such that at each backedge in the program and entry into every function, the framework chooses whether to use the instrumented code or the instrumentation free code. The goal of such a framework is to make it reasonably cheap to do random sampling of very expensive profiling products (such as load-value profiling). 
The code is organized into 3 parts (2 passes)
1) a linked set of profiling passes, which implement an analysis group (linked, like alias analysis are).  These insert profiling into the program, and remember what they inserted, so that at a later time they can be queried about any instruction.

2) a pass that handles inserting the random sampling framework.  This also has options to control how random samples are choosen.  Currently implemented are Global counters, register allocated global counters, and read cycle counter (see? there was a reason for it).

The profiling passes are almost identical to the existing ones (block, function, and null profiling is supported right now), and they are valid passes without the sampling framework (hence the existing passes can be unified with the new ones, not done yet).

Some things are a bit ugly still, but that should be fixed up soon enough.

Other todo? making the counter values not "magic 2^16 -1" values, but dynamically choosable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24493 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-28 00:58:09 +00:00
Andrew Lenharth
7c0c567058 Reg2Mem is something a pass may depend on, so allow that 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24488 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-22 22:14:23 +00:00
Andrew Lenharth
105b2f5374 needs to go here to apparently. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24268 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-10 02:07:45 +00:00
Andrew Lenharth
183119cdf6 The pass everyone has been waiting for! 
Reg2Mem

for fun you can opt -reg2mem -mem2reg


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24267 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-10 01:58:38 +00:00
Nate Begeman
14b0529532 Add support alignment of allocation instructions. 
Add support for specifying alignment and size of setjmp jmpbufs.

No targets currently do anything with this information, nor is it presrved
in the bytecode representation.  That's coming up next.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24196 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-05 09:21:28 +00:00
Chris Lattner
3aa4e15331 Remove the LowerConstantExpressionsPass pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24089 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-29 05:32:20 +00:00
John Criswell
bd9d37026a Move some constant folding functions into LLVMAnalysis since they are used 
by Analysis and Transformation passes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24038 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-27 16:00:10 +00:00
Chris Lattner
71478a09b5 Don't link these three passes in anymore 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23941 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-24 02:30:25 +00:00
Chris Lattner
581ba9073e Don't invade the system namespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23917 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-24 00:16:03 +00:00
Chris Lattner
9b2b56ef75 There is no need for this to be VC++ only 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23915 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-24 00:08:51 +00:00
Chris Lattner
e214979f79 Make this work with the internalize change 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23812 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-19 01:41:47 +00:00
Chris Lattner
f9c6105a78 add an option to the internalize pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23782 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-18 06:28:16 +00:00
Chris Lattner
cc0f703f42 allow demotion to volatile values 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23472 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-27 19:38:43 +00:00
Chris Lattner
c5406b55d5 add a new function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23443 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-26 05:26:32 +00:00
Chris Lattner
bb20372e70 add a helper 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22823 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-17 06:34:37 +00:00
Nate Begeman
a83ba0f5c9 Fix a fixme in CondPropagate.cpp by moving a PhiNode optimization into 
BasicBlock's removePredecessor routine.  This requires shuffling around
the definition and implementation of hasContantValue from Utils.h,cpp into
Instructions.h,cpp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22664 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-04 23:24:19 +00:00
Jeff Cohen
c8beae2b6d Add SimplyLibCalls.cpp to VC++ build 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21554 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-26 02:57:49 +00:00
Reid Spencer
bb3d5d246b Declare a function to create the SimplifyLibCalls pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21523 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-25 02:54:00 +00:00
Misha Brukman
34695381d6 Remove trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21412 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-21 20:59:05 +00:00
Chris Lattner
da3f296854 new pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21307 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-15 21:13:16 +00:00
Chris Lattner
73459d097b add a new prototype 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21305 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-15 19:24:49 +00:00
Jeff Cohen
e60f69c054 Fix VC++ build breakage 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20888 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 02:52:28 +00:00
Alkis Evlogimenos
ab7ada3ed6 Rename createPromoteMemoryToRegister() to 
createPromoteMemoryToRegisterPass() to be consistent with other pass
creation functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20885 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 02:01:12 +00:00
Jeff Cohen
2f3c9b7562 Add support for not strength reducing GEPs where the element size is a small 
power of two.  This emphatically includes the zeroeth power of two.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20429 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-04 04:04:26 +00:00
Chris Lattner
7dd732bf80 Add an argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20413 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-03 01:03:10 +00:00
Jeff Cohen
a5ba89421e Get VC++ compiling again 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19869 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-28 07:29:32 +00:00
Jeff Cohen
ecc1cef8bf Apply feedback from Chris. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19432 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-10 04:23:32 +00:00
Jeff Cohen
6e400f76e6 Apply feed back from Chris: 
1. Rename createLoaderPass to CreateProfileLoaderPass
  2. Opt shouldn't use the pass registered in CodeGen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19431 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-10 03:56:27 +00:00
Jeff Cohen
1d7b5de7ee Add last four createXxxPass functions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19424 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-09 20:42:52 +00:00
Jeff Cohen
534927d82d Add even more missing createXxxPass functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19402 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 22:01:16 +00:00
Jeff Cohen
06deda2d9c Add a few more passes to LinkAllPasses.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19371 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 18:15:23 +00:00
Jeff Cohen
bf65268def Add more missing createXxxPass functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19370 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-08 17:21:40 +00:00
Jeff Cohen
e89c7c616b But not the identation of THAT line 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19328 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-07 07:46:40 +00:00
Jeff Cohen
b99468d718 Correct indentation levels 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19322 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-07 07:44:02 +00:00
Jeff Cohen
d9ed8c8880 Add missing createXxxPass functions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19319 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-07 06:57:28 +00:00
Misha Brukman
3e4c46fbd6 Fix spelling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19317 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-07 06:45:07 +00:00
Jeff Cohen
c313932693 Update list of passes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19316 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-07 06:12:41 +00:00
Jeff Cohen
835ca25de6 Fix return type 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19314 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-07 05:41:39 +00:00
Jeff Cohen
e67bc1384a Get the #ifdef right on LinkAllPasses.h. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19310 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-06 07:01:08 +00:00
Jeff Cohen
00f3db6a4c Fix minor mistakes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19309 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-06 06:29:42 +00:00
Jeff Cohen
d1c452b501 Get rid of those pesky tabs... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19308 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-06 06:06:35 +00:00
Jeff Cohen
4b807e0381 Add project opt to Visual Studio. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19307 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-06 06:02:53 +00:00