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952 Commits

Author SHA1 Message Date
Devang Patel
772777e105 Use actual function name in comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59063 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-11 19:16:41 +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
Andrew Lenharth
06a1242207 add a period at the end of the comment, ignoring the fact that the comment would be hard pressed to be considered a sentence, but if it makes Bill happy... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58630 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-03 19:29:29 +00:00
Andrew Lenharth
97bd9a914b Ensure that we are checking only calls to the function we are interested in specializing 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58615 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-03 16:05:35 +00:00
Nick Lewycky
6feb333695 Changes from Duncan's review: 
* merge two weak functions by making them both alias a third non-weak fn
 * don't reimplement CallSite::hasArgument
 * whitelist the safe linkage types


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58568 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-02 16:46:26 +00:00
Duncan Sands
5baf8ece83 Get this building on 64 bit machines (error: 
cast from ‘const llvm::PointerType*’ to ‘unsigned int’
loses precision).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58561 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-02 09:00:33 +00:00
Oscar Fuentes
2b82b7e77e CMake: added a source file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58559 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-02 06:01:39 +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
Dan Gohman
b9a31a15f9 Fix a bug that prevented llvm-extract -delete from working. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57864 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-21 01:08:07 +00:00
Nuno Lopes
7a85a62f50 dont specialize weak functions and the like 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57305 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-08 18:45:59 +00:00
Duncan Sands
c82b6a1ed2 Ignore loads from and stores to local memory (i.e. allocas) 
when deciding whether to mark a function readnone/readonly.
Since the pass is currently run before SROA, this may be
quite helpful.  Requested by Chris on IRC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57050 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-04 13:24:24 +00:00
Dan Gohman
792e1e92c7 Clean up some multiple-return-value code that is no longer 
applicable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57033 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-03 22:21:24 +00:00
Duncan Sands
a2582da44d Teach internalize to preserve the callgraph. 
Why?  Because it was there!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56996 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-03 07:36:09 +00:00
Nuno Lopes
86364023e6 revert the addition of Preverves(CallGraph), per Duncan's comments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56917 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-01 09:13:40 +00:00
Nuno Lopes
0483d018c4 add preserversCFG() + preservers(CallGraph) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56887 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 22:04:30 +00:00
Nuno Lopes
dd7c3e4e56 add AU.setPreservesCFG() since this pass only adds and removes function attributes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56868 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 18:34:38 +00:00
Duncan Sands
6cccf03d02 Speed up these passes when the callgraph has 
huge simply connected components.  Suggested
by Chris.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56787 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-29 14:59:04 +00:00
Nuno Lopes
5ed3b894c9 remove redundant test (mayBeOverriden() includes hasLinkOnceLinkage) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56786 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-29 14:40:32 +00:00
Duncan Sands
224c86ee77 Tweak some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56784 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-29 13:35:31 +00:00
Duncan Sands
5df3186f59 Rename isWeakForLinker to mayBeOverridden. Use it 
instead of hasWeakLinkage in a bunch of optimization
passes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56782 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-29 11:25:42 +00:00
Devang Patel
2c9c3e7368 Implement function notes as function attributes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56716 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 23:51:19 +00:00
Devang Patel
19c874638d Now Attributes are divided in three groups 
- return attributes - inreg, zext and sext
- parameter attributes
- function attributes - nounwind, readonly, readnone, noreturn

Return attributes use 0 as the index.
Function attributes use ~0U as the index.

This patch requires corresponding changes in llvm-gcc and clang.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56704 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 22:53:05 +00:00
Devang Patel
0598866c05 Large mechanical patch. 
s/ParamAttr/Attribute/g
s/PAList/AttrList/g
s/FnAttributeWithIndex/AttributeWithIndex/g
s/FnAttr/Attribute/g

This sets the stage 
- to implement function notes as function attributes and 
- to distinguish between function attributes and return value attributes.

This requires corresponding changes in llvm-gcc and clang.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56622 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 21:00:45 +00:00
Devang Patel
e3d76d37e9 s/ParamAttrsWithIndex/FnAttributeWithIndex/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56535 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 00:55:02 +00:00
Devang Patel
20bcaff6a7 Put FN_NOTE_AlwaysInline and others in FnAttr namespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56527 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 00:06:15 +00:00
Devang Patel
dd4924c564 Move FN_NOTE_AlwaysInline and other out of ParamAttrs namespace. 
Do not check isDeclaration() in hasNote(). It is clients' responsibility.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56524 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-23 23:52:03 +00:00
Devang Patel
eaf42abab6 s/ParameterAttributes/Attributes/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56513 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-23 23:03:40 +00:00
Devang Patel
d9b4a5f859 Use parameter attribute store (soon to be renamed) for 
Function Notes also. Function notes are stored at index ~0.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56511 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-23 22:35:17 +00:00
Devang Patel
f3ba70861c Add hasNote() to check note associated with a function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56477 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-22 22:32:29 +00:00
Oscar Fuentes
3d01fc7de8 Initial support for the CMake build system. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56419 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-22 01:08:49 +00:00
Duncan Sands
f95f945fb0 Implement review feedback from Devang: make use 
of mayReadFromMemory and mayWriteToMemory.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56387 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-20 16:45:58 +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
Anton Korobeynikov
19e861a4ff Make safer variant of alias resolution routine to be default 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56005 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 20:05:04 +00:00
Anton Korobeynikov
e4c6b61ebd Resolve aliases, when possible 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56001 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 19:04:59 +00:00
Duncan Sands
a9c3251e6b Update the callgraph correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55896 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 11:08:09 +00:00
Duncan Sands
34c8847b2d Update the callgraph correctly in ArgumentPromotion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55895 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 11:07:35 +00:00
Duncan Sands
d7b9851c4e Reapply 55859. This doesn't change anything as 
long as the callgraph is correct.  It checks
for wrong callgraphs more strictly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55894 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 11:05:51 +00:00
Duncan Sands
4cddaf77c4 Correct a comment and strip trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55883 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-07 09:54:09 +00:00
Nuno Lopes
b9baf31679 fix crash when the malloc/free function is defined or is a declaration with 0 parameters. 
this pass doesnt seem to be used, but still it's now a little more correct

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55873 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-06 17:44:06 +00:00
Duncan Sands
fec2c2bf5e When PruneEH turned an invoke into an ordinary 
call (thus changing the call site) it didn't
inform the callgraph about this.  But the
call site does matter - as shown by the testcase,
the callgraph become invalid after the inliner
ran (with an edge between two functions simply
missing), resulting in wrong deductions by
GlobalsModRef.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55872 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-06 17:19:29 +00:00
Owen Anderson
6e6074508c Revert r55859. This is breaking the build in the abscence of its companion commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55865 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 23:36:01 +00:00
Duncan Sands
c94fe21a56 Delete the removeCallEdgeTo callgraph method, 
because it does not maintain a correct list
of callsites.  I discovered (see following
commit) that the inliner will create a wrong
callgraph if it is fed a callgraph with
correct edges but incorrect callsites.  These
were created by Prune-EH, and while it wasn't
done via removeCallEdgeTo, it could have been
done via removeCallEdgeTo, which is an accident
waiting to happen.  Use removeCallEdgeFor
instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55859 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 21:43:04 +00:00
Duncan Sands
6f0a7687ab Use removeAllCalledFunctions rather than removing 
edges one by one by hand.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55836 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 14:56:53 +00:00
Duncan Sands
cae62e3498 Make this pass return that it made a change if 
it modifies a functions attributes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55831 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 09:08:37 +00:00
Andrew Lenharth
eb50479714 try to seperate the mechanism into something others can use 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55785 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 18:51:26 +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
ef7803217a cleanup as per Duncan's review 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55766 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 14:34:22 +00:00