0cdf52310a
insert some sequence points and preincrement an iterator to avoid
...
iterator invalidation problems.
llvm-svn: 61124
2008-12-17 05:42:08 +00:00
222ef4c489
Enhance heap sra to be substantially more aggressive w.r.t PHI
...
nodes. This allows it to do fairly general phi insertion if a
load from a pointer global wants to be SRAd but the load is used
by (recursive) phi nodes. This fixes a pessimization on ppc
introduced by Load PRE.
llvm-svn: 61123
2008-12-17 05:28:49 +00:00
56b55387fc
Fix another crash found by inspection. If we have a PHI node merging
...
the load multiple times, make sure the check the uses of the PHI to
ensure they are transformable.
llvm-svn: 61102
2008-12-16 21:24:51 +00:00
06a456b3f4
fix a crash found by inspection.
...
llvm-svn: 61101
2008-12-16 21:04:51 +00:00
6ddde53783
switch some std::set/std::map to SmallPtrSet/DenseMap.
...
llvm-svn: 61081
2008-12-16 07:34:30 +00:00
49e3bdc165
enhance heap-sra to apply to fixed sized array allocations, not just
...
variable sized array allocations.
llvm-svn: 61051
2008-12-15 21:44:34 +00:00
1c731fa86f
Use stripPointerCasts.
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llvm-svn: 61047
2008-12-15 21:20:32 +00:00
f0eb568021
minor tweaks for formatting, allow bitcast in ValueIsOnlyUsedLocallyOrStoredToOneGlobal.
...
llvm-svn: 61046
2008-12-15 21:08:54 +00:00
c4274a71d5
refactor some code into a new TryToOptimizeStoreOfMallocToGlobal function.
...
Use GetElementPtrInst::hasAllZeroIndices where possible.
llvm-svn: 61045
2008-12-15 21:02:25 +00:00
f5260d29c2
Fix error where it wasn't getting the correct caller function.
...
llvm-svn: 59758
2008-11-21 00:09:21 +00:00
26c6a3e736
If the function being inlined has a higher stack protection level than the
...
inlining function, then increase the stack protection level on the inlining
function.
llvm-svn: 59757
2008-11-21 00:06:32 +00:00
c8b2fe1eed
Do not forget llvm.dbg.declare's first argument while removing debugging information.
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llvm-svn: 59688
2008-11-20 01:20:42 +00:00
25662f3e4a
Remove unused variables.
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llvm-svn: 59570
2008-11-19 00:22:02 +00:00
ebd2363339
Fix typo.
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llvm-svn: 59569
2008-11-19 00:19:18 +00:00
b5e867acff
Add new helper pass that strips all symbol names except debugging information.
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This pass makes it easier to test wheter debugging info. influences optimization passes or not.
llvm-svn: 59552
2008-11-18 21:34:39 +00:00
3b7a2be88e
Remove even more llvm.dbg variables.
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Remove all dead globals from llvm.metadata.
Ignore linkonce linkage for selected llvm.dbg values.
llvm-svn: 59547
2008-11-18 21:13:41 +00:00
026259faeb
If SI->size() is 0, we are not allowed to dereference ->begin().
...
This fixed PR3078.
llvm-svn: 59416
2008-11-16 17:21:25 +00:00
f8f6270f14
simplify loop
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llvm-svn: 59406
2008-11-16 06:35:18 +00:00
8ada1d5de5
Refactor code.
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Strip debug information before stripping symbol names.
llvm-svn: 59328
2008-11-14 22:49:37 +00:00
3dd51c5c62
Really remove all debug information.
...
llvm-svn: 59208
2008-11-13 01:28:40 +00:00
95b18126ee
Use actual function name in comments.
...
llvm-svn: 59063
2008-11-11 19:16:41 +00:00
f0ef35738c
Do now allow InlineAlways pass to remove dead functions.
...
llvm-svn: 58744
2008-11-05 01:39:16 +00:00
348f3fa6a7
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...
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llvm-svn: 58630
2008-11-03 19:29:29 +00:00
45b86322f2
Ensure that we are checking only calls to the function we are interested in specializing
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llvm-svn: 58615
2008-11-03 16:05:35 +00:00
3c6d34a7f0
Changes from Duncan's review:
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* merge two weak functions by making them both alias a third non-weak fn
* don't reimplement CallSite::hasArgument
* whitelist the safe linkage types
llvm-svn: 58568
2008-11-02 16:46:26 +00:00
cede1e035c
Get this building on 64 bit machines (error:
...
cast from ‘const llvm::PointerType*’ to ‘unsigned int’
loses precision).
llvm-svn: 58561
2008-11-02 09:00:33 +00:00
0433be6feb
CMake: added a source file.
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llvm-svn: 58559
2008-11-02 06:01:39 +00:00
d01d42e76c
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.
llvm-svn: 58557
2008-11-02 05:52:50 +00:00
3933e66a89
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.
llvm-svn: 58450
2008-10-30 19:26:59 +00:00
e7fbf9f425
Factor shouldInline method out of Inliner.
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- No functionality change.
llvm-svn: 58355
2008-10-29 01:02:02 +00:00
cc20455346
Assorted comment/naming fixes, 80-col violations, and reindentation.
...
- No functionality change.
llvm-svn: 58352
2008-10-28 23:24:26 +00:00
fa29b67aee
Fix a bug that prevented llvm-extract -delete from working.
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llvm-svn: 57864
2008-10-21 01:08:07 +00:00
06c67f88d7
dont specialize weak functions and the like
...
llvm-svn: 57305
2008-10-08 18:45:59 +00:00
1d35e9aebe
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.
llvm-svn: 57050
2008-10-04 13:24:24 +00:00
e21903987f
Clean up some multiple-return-value code that is no longer
...
applicable.
llvm-svn: 57033
2008-10-03 22:21:24 +00:00
3a813a5d3f
Teach internalize to preserve the callgraph.
...
Why? Because it was there!
llvm-svn: 56996
2008-10-03 07:36:09 +00:00
96740aad86
revert the addition of Preverves(CallGraph), per Duncan's comments
...
llvm-svn: 56917
2008-10-01 09:13:40 +00:00
5093ab4c76
add preserversCFG() + preservers(CallGraph)
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llvm-svn: 56887
2008-09-30 22:04:30 +00:00
2bd7b24f1a
add AU.setPreservesCFG() since this pass only adds and removes function attributes
...
llvm-svn: 56868
2008-09-30 18:34:38 +00:00
57512a1be4
Speed up these passes when the callgraph has
...
huge simply connected components. Suggested
by Chris.
llvm-svn: 56787
2008-09-29 14:59:04 +00:00
ffc9da6772
remove redundant test (mayBeOverriden() includes hasLinkOnceLinkage)
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llvm-svn: 56786
2008-09-29 14:40:32 +00:00
e340e18783
Tweak some comments.
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llvm-svn: 56784
2008-09-29 13:35:31 +00:00
08d91178e9
Rename isWeakForLinker to mayBeOverridden. Use it
...
instead of hasWeakLinkage in a bunch of optimization
passes.
llvm-svn: 56782
2008-09-29 11:25:42 +00:00
9eb525d4f9
Implement function notes as function attributes.
...
llvm-svn: 56716
2008-09-26 23:51:19 +00:00
a05633e105
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.
llvm-svn: 56704
2008-09-26 22:53:05 +00:00
4c758ea3e0
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.
llvm-svn: 56622
2008-09-25 21:00:45 +00:00
6402c7236f
s/ParamAttrsWithIndex/FnAttributeWithIndex/g
...
llvm-svn: 56535
2008-09-24 00:55:02 +00:00
e15607b7bb
Put FN_NOTE_AlwaysInline and others in FnAttr namespace.
...
llvm-svn: 56527
2008-09-24 00:06:15 +00:00
e87abd26ba
Move FN_NOTE_AlwaysInline and other out of ParamAttrs namespace.
...
Do not check isDeclaration() in hasNote(). It is clients' responsibility.
llvm-svn: 56524
2008-09-23 23:52:03 +00:00
ba3fa6c6e1
s/ParameterAttributes/Attributes/g
...
llvm-svn: 56513
2008-09-23 23:03:40 +00:00
Chris Lattner