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34200 Commits

Author SHA1 Message Date
Jim Grosbach
e27d205d5d Factor the stack alignment calculations out into a target independent pass. 
No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90336 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 19:30:24 +00:00
Bob Wilson
f1e01dcc94 Don't count PHI instructions toward the limit for tail duplicating a block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90326 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 17:15:24 +00:00
Jim Grosbach
43a8241b65 Move EliminateDuplicatePHINodes() from SimplifyCFG.cpp to Local.cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90324 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 17:06:45 +00:00
Andreas Neustifter
059a983531 Cheap, mostly strict, stable sorting. 
This is necessary for tests so the results are comparable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90320 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 15:57:15 +00:00
Benjamin Kramer
0fea11a805 Silence compiler warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90319 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 15:33:44 +00:00
Devang Patel
69f57b1f41 Clarify that DIEString does not keep a copy of the string. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90318 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 15:25:16 +00:00
Owen Anderson
9ff5a23186 Cleanup/remove some parts of the lifetime region handling code in memdep and GVN, 
per Chris' comments.  Adjust testcases to match.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90304 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 07:35:19 +00:00
Chris Lattner
720e790480 factor some code better. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90299 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 06:44:58 +00:00
Chris Lattner
65a9ab4f8f formatting cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90298 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 06:35:55 +00:00
Chris Lattner
bf796323b2 tidy up, remove dependence on order of evaluation of function args from EmitMemCpy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90297 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 06:05:42 +00:00
Mon P Wang
69a008075b Fixed an assertion failure for tracking sext of a vector of integers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90290 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 04:59:58 +00:00
Devang Patel
e3a18de4f6 Add utility routine to create subprogram definition entry from subprogram declaration entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90282 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 23:09:02 +00:00
Devang Patel
7d0750a10f Reuse existing subprogram DIE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90281 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 23:07:59 +00:00
Chris Lattner
6e1f16d522 return more useful error messages by using strerror to format errno 
instead of returning an ambiguous reason.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90275 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 22:51:41 +00:00
Evan Cheng
9836a26da3 Fix PR5391: support early clobber physical register def tied with a use (ewwww) 
- A valno should be set HasRedefByEC if there is an early clobber def in the middle of its live ranges. It should not be set if the def of the valno is defined by an early clobber.
- If a physical register def is tied to an use and it's an early clobber, it just means the HasRedefByEC is set since it's still one continuous live range.
- Add a couple of missing checks for HasRedefByEC in the coalescer. In general, it should not coalesce a vr with a physical register if the physical register has a early clobber def somewhere. This is overly conservative but that's the price for using such a nasty inline asm "feature".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90269 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 22:25:00 +00:00
Chris Lattner
1e8de49fe7 rename some variables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90258 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 21:16:01 +00:00
Chris Lattner
1ffb70f21d tidy 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90257 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 21:15:15 +00:00
Dan Gohman
5b69fe767c Add edge source labels to SelectionDAG graphs, now that the graph printing 
framework omits differentiated edge sources in the case where the labels
are empty strings.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90254 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 19:20:00 +00:00
Dan Gohman
0baf2a302f Minor cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90253 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 19:16:15 +00:00
Dan Gohman
241c595786 Trim an unnecessary #include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90252 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 19:13:27 +00:00
Devang Patel
c09ddc1c79 Clear function specific containers while processing end of a function, even if DW_TAG_subprogram for current function is not found. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90247 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 18:13:48 +00:00
Jim Grosbach
d122874996 Thumb1 exception handling setjmp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90246 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 18:10:36 +00:00
Johnny Chen
b731e87649 For VLDM/VSTM (Advanced SIMD), set encoding bits Inst{11-8} to 0b1011. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90243 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 17:37:06 +00:00
Jakob Stoklund Olesen
8f72235a77 Move PHIElimination::isLiveOut method to LiveVariables. 
We want LiveVariables clients to use methods rather than accessing the
getVarInfo data structure directly. That way it will be possible to change the
LiveVariables representation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90240 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 17:13:31 +00:00
Chris Lattner
855d9da596 fix 255.vortex again, third time's the charm. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90217 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 07:33:32 +00:00
Chris Lattner
46875c0bfb fix PR5640 by tracking whether a block is the header of a loop more 
precisely, which prevents us from infinitely peeling the loop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90211 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 06:04:43 +00:00
Jakob Stoklund Olesen
579d6d9fe3 Use CFG connectedness as a secondary sort key when deciding the order of copy coalescing. 
This means that well connected blocks are copy coalesced before the less connected blocks. Connected blocks are more difficult to
coalesce because intervals are more complicated, so handling them first gives a greater chance of success.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90194 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 03:03:00 +00:00
Dan Gohman
261a7d983d Devang pointed out that this code should use DIScope instead of 
DICompileUnit. This code now prints debug filenames successfully.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90181 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 00:45:56 +00:00
Evan Cheng
a4025df42d Fix PR5614: parts of a physical register def may be killed the rest. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90180 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 00:44:45 +00:00
Johnny Chen
208d76cad9 For VMOV (immediate), make some of the encoding bits (cmode and op) unspecified. 
For VMOVv*i[16,32], op bit is don't care, and some cmode bits vary depending on
the immediate values.

Ref: Table A7-15 Modified immediate values for Advanced SIMD instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90173 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 00:02:02 +00:00
Devang Patel
deea564e53 If pointer type has a name then do not ignore the name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90172 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-30 23:56:56 +00:00
Dan Gohman
39a1fab856 Minor whitespace fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90166 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-30 23:33:53 +00:00
Dan Gohman
22f6526081 Fix a minor inconsistency. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90165 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-30 23:33:37 +00:00
Jakob Stoklund Olesen
ce7a663140 New virtual registers created for spill intervals should inherit allocation hints from the original register. 
This helps us avoid silly copies when rematting values that are copied to a physical register:

leaq	_.str44(%rip), %rcx
movq	%rcx, %rsi
call	_strcmp

becomes:

leaq	_.str44(%rip), %rsi
call	_strcmp

The coalescer will not touch the movq because that would tie down the physical register.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90163 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-30 22:55:54 +00:00
Bob Wilson
3858225afc Reprioritize tests for tail duplication to be aggressive about indirect 
branches even when optimizing for code size.  Unless we find evidence to the
contrary in the future, the special treatment for indirect branches does not
have a significant effect on code size, and performance still matters with -Os.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90147 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-30 18:56:45 +00:00
Bob Wilson
15217e63bc Remove isProfitableToDuplicateIndirectBranch target hook. It is profitable 
for all the processors where I have tried it, and even when it might not help
performance, the cost is quite low.  The opportunities for duplicating
indirect branches are limited by other factors so code size does not change
much due to tail duplicating indirect branches aggressively.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90144 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-30 18:35:03 +00:00
Bob Wilson
afa1df467b Fix some more ARM unified syntax warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90141 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-30 17:47:19 +00:00
Tobias Grosser
ab01069fcd Fix last DOTGraphTraits problems in CompilationGraph. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90136 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-30 13:34:51 +00:00
Tobias Grosser
b5eedf2c1c Remove forgotten ShortNames in Trie and CompilationGraph 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90135 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-30 13:14:13 +00:00
Tobias Grosser
56f4ef3232 Remove ShortNames from getNodeLabel in DOTGraphTraits 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90134 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-30 12:38:47 +00:00
Tobias Grosser
a10d598602 Instantiate DefaultDOTGraphTraits 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90133 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-30 12:38:13 +00:00
Tobias Grosser
2833fac273 Small PostDominatorTree improvements 
* Do not SEGFAULT if tree entryNode() is NULL
 * Print function names in dotty printer

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90130 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-30 12:06:37 +00:00
Nick Lewycky
f58e86d762 Revert r90107, fixing test/Transforms/GVN/2009-11-29-ReverseMap.ll and the 
llvm-gcc build.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90113 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-30 07:05:51 +00:00
Mon P Wang
cd6e725f21 Added support to allow clients to custom widen. For X86, custom widen vectors for 
divide/remainder since these operations can trap by unroll them and adding undefs
for the resulting vector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90108 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-30 02:42:02 +00:00
Chris Lattner
366429b400 reapply r90093 with an addition of keeping the forward 
and reverse nonlocal memdep maps in synch, this should
fix 255.vortex.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90107 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-30 02:26:29 +00:00
Nick Lewycky
fac554a131 Teach ConstantFolding to do a better job when folding gep(bitcast). 
This permits the devirtualization of llvm.org/PR3100#c9 when compiled by clang.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90099 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-29 21:40:55 +00:00
Benjamin Kramer
e6f329476c Revert r90089 for now, it's breaking selfhost. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90097 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-29 21:17:48 +00:00
Chris Lattner
ae3d24880d revert this patch for now, it causes failures of: 
LLVM::Transforms/GVN/2009-02-17-LoadPRECrash.ll
    LLVM::Transforms/GVN/2009-06-17-InvalidPRE.ll



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90096 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-29 21:14:59 +00:00
Chris Lattner
1903d97c2c Fix a really nasty caching bug I introduced in memdep. An entry 
was being added to the Result vector, but not being put in the
cache.  This means that if the cache was reused wholesale for a
later query that it would be missing this entry and we'd do an
incorrect load elimination.

Unfortunately, it's not really possible to write a useful 
testcase for this, but this unbreaks 255.vortex.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90093 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-29 21:09:36 +00:00
Benjamin Kramer
4aac07e898 Fix two FIXMEs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90089 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-29 20:29:30 +00:00