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Author SHA1 Message Date
Sandeep Patel
af459ed32d Fix method name in comment, per Bob Wilson. 
llvm-svn: 84017
 2009-10-13 20:25:58 +00:00
Dan Gohman
c5a7668904 Use the new CodeMetrics class to compute code size instead of 
manually counting instructions.

llvm-svn: 84016
 2009-10-13 20:12:23 +00:00
Dan Gohman
c1e210fa10 Compute a full cost value even when a setjmp call is found. 
llvm-svn: 84015
 2009-10-13 20:10:10 +00:00
Dan Gohman
665e336185 Split code not specific to Function inlining out into a separate class, 
named CodeMetrics. Move it to be a non-nested class. Rename RegionInfo
back to FunctionInfo.

llvm-svn: 84013
 2009-10-13 19:58:07 +00:00
David Goodwin
d23db026b6 Add debugging output. 
llvm-svn: 84011
 2009-10-13 19:16:03 +00:00
Sandeep Patel
1584038783 Add ARMv6T2 SBFX/UBFX instructions. Approved by Anton Korobeynikov. 
llvm-svn: 84009
 2009-10-13 18:59:48 +00:00
Ted Kremenek
1f746d5df3 Update CMake file (lexically order files). 
llvm-svn: 84008
 2009-10-13 18:57:27 +00:00
Devang Patel
8f81b906ab Do not write empty METADATA_ATTACHMENT record. 
llvm-svn: 84006
 2009-10-13 18:51:28 +00:00
Devang Patel
934fb4274a Remove unnecessary assert. 
llvm-svn: 84004
 2009-10-13 18:51:03 +00:00
Benjamin Kramer
679377c816 Update the other CMake file. 
llvm-svn: 84003
 2009-10-13 18:50:54 +00:00
Devang Patel
e911e90808 Parse GEP with attached custom metadata. This happens during libprofile_rt.bca build. 
llvm-svn: 84002
 2009-10-13 18:49:55 +00:00
Ted Kremenek
dd5d38175d Update CMake file. 
llvm-svn: 84001
 2009-10-13 18:48:07 +00:00
Evan Cheng
84c5224fa2 Refactor some code. No functionality changes. 
llvm-svn: 84000
 2009-10-13 18:42:04 +00:00
Dan Gohman
81218aa90e Commit the removal of this file, which is now moved to lib/Analysis. 
llvm-svn: 83999
 2009-10-13 18:37:20 +00:00
Dan Gohman
18cdd7ef1b Move the InlineCost code from Transforms/Utils to Analysis. 
llvm-svn: 83998
 2009-10-13 18:30:07 +00:00
Dan Gohman
f277c57aad Start refactoring the inline cost estimation code so that it can be used 
for purposes other than inlining.

llvm-svn: 83997
 2009-10-13 18:24:11 +00:00
Chris Lattner
26c670aa44 change simplifycfg to not duplicate 'unwind' instructions. Hopefully 
this will increase the likelihood of common code getting sunk towards
the unwind.

llvm-svn: 83996
 2009-10-13 18:13:05 +00:00
Dan Gohman
d01c6196f4 Make LoopUnswitch's cost estimation count Instructions, rather than 
BasicBlocks, so that it doesn't blindly procede in the presence of
large individual BasicBlocks. This addresses a class of code-size
expansion problems.

llvm-svn: 83992
 2009-10-13 17:50:43 +00:00
Jeffrey Yasskin
3eacbf419d Make the ExecutionEngine automatically remove global mappings on when their 
GlobalValue is destroyed.  Function destruction still leaks machine code and
can crash on leaked stubs, but this is some progress.

llvm-svn: 83987
 2009-10-13 17:42:08 +00:00
Devang Patel
ee9d2f0cc0 "there is not any instruction with attached debug info in this module" does not mean "there is no debug info in this module". :) 
llvm-svn: 83984
 2009-10-13 17:35:35 +00:00
Bob Wilson
747a6c0795 Add some ARM instruction encoding bits. 
Patch by Johnny Chen.

llvm-svn: 83983
 2009-10-13 17:35:30 +00:00
Bob Wilson
60d40281d3 Fix regression introduced by r83894. 
llvm-svn: 83982
 2009-10-13 17:29:13 +00:00
Devang Patel
729589a539 Copy metadata when value is RAUW'd. It is debatable whether this is the right approach for custom metadata data in general. However, right now the only custom data user, "dbg", expects this behavior while FE is constructing llvm IR with debug info. 
llvm-svn: 83977
 2009-10-13 17:00:54 +00:00
Bob Wilson
53fb652143 Fix a tab. Thanks to Johnny Chen for pointing it out. 
llvm-svn: 83973
 2009-10-13 15:27:23 +00:00
Nick Lewycky
ee0c1726d8 Force memory use markers to have a ConstantInt for the size argument. 
llvm-svn: 83960
 2009-10-13 07:57:33 +00:00
Nick Lewycky
72f185f281 Teach BasicAA a little something about the atomic intrinsics: they can only 
modify through the pointer they're given.

llvm-svn: 83959
 2009-10-13 07:48:38 +00:00
Daniel Dunbar
592c5055dd Fix a -Asserts warning. 
llvm-svn: 83950
 2009-10-13 06:47:08 +00:00
Victor Hernandez
21280bc3af Memory dependence analysis was incorrectly stopping to scan for stores to a pointer at bitcast uses of a malloc call. 
It should continue scanning until the malloc call, and this patch fixes that.

llvm-svn: 83931
 2009-10-13 01:42:53 +00:00
Devang Patel
aeac1241b8 Find enclosing subprogram info. 
llvm-svn: 83922
 2009-10-12 23:11:24 +00:00
Devang Patel
8abee488dc Set default location for a function if it is not set. 
llvm-svn: 83921
 2009-10-12 23:10:55 +00:00
Kevin Enderby
c4125fbeb8 Fix two warnings about unused variables that are only used in assert() calls. 
llvm-svn: 83917
 2009-10-12 22:51:49 +00:00
Bob Wilson
3259a4106f Delete a comment that makes no sense to me. The statement that moving a CPE 
before its reference is only supported on ARM has not been true for a while.
In fact, until recently, that was only supported for Thumb.  Besides that,
CPEs are always a multiple of 4 bytes in size, so inserting a CPE should have
no effect on Thumb alignment.

llvm-svn: 83916
 2009-10-12 22:49:05 +00:00
Kevin Enderby
29f78ac638 Fix a problem in the code where ARMAsmParser::ParseShift() second argument 
should have been a pointer to a reference.

llvm-svn: 83915
 2009-10-12 22:39:54 +00:00
Evan Cheng
3a513d33ed Make licm debug message readable. 
llvm-svn: 83908
 2009-10-12 22:25:23 +00:00
Bob Wilson
59435f24b1 Change CreateNewWater method to return NewMBB by reference. 
llvm-svn: 83905
 2009-10-12 21:39:43 +00:00
Bob Wilson
47c68e5cdf Last week, ARMConstantIslandPass was failing to converge for the 
MultiSource/Benchmarks/MiBench/automotive-susan test.  The failure has
since been masked by an unrelated change (just randomly), so I don't have
a testcase for this now.  Radar 7291928.

The situation where this happened is that a constant pool entry (CPE) was
placed at a lower address than the load that referenced it.  There were in
fact 2 CPEs placed at adjacent addresses and referenced by 2 loads that were
close together in the code.  The distance from the loads to the CPEs was
right at the limit of what they could handle, so that only one of the CPEs
could be placed within range.  On every iteration, the first CPE was found
to be out of range, causing a new CPE to be inserted.  The second CPE had
been in range but the newly inserted entry pushed it too far away.  Thus the
second CPE was also replaced by a new entry, which in turn pushed the first
CPE out of range.  Etc.

Judging from some comments in the code, the initial implementation of this
pass did not support CPEs placed _before_ their references.  In the case
where the CPE is placed at a higher address, the key to making the algorithm
terminate is that new CPEs are only inserted at the end of a group of adjacent
CPEs.  This is implemented by removing a basic block from the "WaterList"
once it has been used, and then adding the newly inserted CPE block to the
list so that the next insertion will come after it.  This avoids the ping-pong
effect where CPEs are repeatedly moved to the beginning of a group of
adjacent CPEs.  This does not work when going backwards, however, because the
entries at the end of an adjacent group of CPEs are closer than the CPEs
earlier in the group.

To make this pass terminate, we need to maintain a property that changes can
only happen in some sort of monotonic fashion.  The fix used here is to require
that the CPE for a particular constant pool load can only move to lower
addresses.  This is a very simple change to the code and should not cause
any significant degradation in the results.

llvm-svn: 83902
 2009-10-12 21:23:15 +00:00
Bob Wilson
de5c640673 Another minor clean-up. 
llvm-svn: 83897
 2009-10-12 20:45:53 +00:00
Bob Wilson
4c946b403f Remove redundant parameter. 
llvm-svn: 83894
 2009-10-12 20:37:23 +00:00
Bob Wilson
64169bce3d Use early exit to reduce indentation. 
llvm-svn: 83874
 2009-10-12 19:04:03 +00:00
Bob Wilson
13ae442741 Change to return a value by reference. 
llvm-svn: 83873
 2009-10-12 19:01:12 +00:00
Bob Wilson
2079cf41c5 Add a typedef for an iterator. 
llvm-svn: 83872
 2009-10-12 18:52:13 +00:00
Dale Johannesen
38c9b68ccf Revert the kludge in 76703. I got a clean 
bootstrap of FSF-style PPC, so there is some
reason to believe the original bug (which was
never analyzed) has been fixed, probably by
82266.

llvm-svn: 83871
 2009-10-12 18:49:00 +00:00
Dale Johannesen
c78690fcaa Fix warning. 
llvm-svn: 83870
 2009-10-12 18:45:32 +00:00
Jeffrey Yasskin
7d85d5a366 Fix http://llvm.org/PR5160, to let CallbackVHs modify other ValueHandles on the 
same Value without breaking things.

llvm-svn: 83861
 2009-10-12 17:43:32 +00:00
Dan Gohman
4c9118f50e Remove a redundant member variable. 
llvm-svn: 83857
 2009-10-12 16:44:10 +00:00
Dan Gohman
b5a0207b98 Don't forget to mark RAX as live-out of the function when arranging for 
it to hold the address of an sret return value, for x86-64 ABI purposes.

Also, fix the test that was originally intended to test this to actually
test it, using FileCheck.

llvm-svn: 83853
 2009-10-12 16:36:12 +00:00
Nate Begeman
d27f450262 More heuristics for Combiner-AA. Still catches all important cases, but 
compile time penalty on gnugo, the worst case in MultiSource, is down to
about 2.5% from 30%

llvm-svn: 83824
 2009-10-12 05:53:58 +00:00
Edward O'Callaghan
00f4a355eb Haiku porting patches, Credit to Paul Davey. 
llvm-svn: 83823
 2009-10-12 04:57:20 +00:00
Chris Lattner
667c067ee0 Fix PR5087, patch by Jakub Staszak! 
llvm-svn: 83822
 2009-10-12 04:22:44 +00:00
Chris Lattner
b2e0e6c46b add some more hooks to the C bindings, patch by Kenneth Uildriks! 
llvm-svn: 83821
 2009-10-12 04:01:02 +00:00
Chris Lattner
ff0d7e8c93 populate instcombine's initial worklist more carefully, causing 
it to visit instructions from the start of the function to the
end of the function in the first path.  This greatly speeds up
some pathological cases (e.g. PR5150).

Try #3, this time with some unneeded debug info stuff removed
which was causing dead pointers to be added to the worklist.

llvm-svn: 83818
 2009-10-12 03:58:40 +00:00
Chris Lattner
bc69f8b5bb revert r83814 for now, it is making the llvm-gcc bootstrap unhappy. 
llvm-svn: 83817
 2009-10-11 23:56:08 +00:00
Chris Lattner
1a6fbd067a populate instcombine's initial worklist more carefully, causing 
it to visit instructions from the start of the function to the
end of the function in the first path.  This greatly speeds up
some pathological cases (e.g. PR5150). 

llvm-svn: 83814
 2009-10-11 23:17:43 +00:00
Anton Korobeynikov
deadc3ed2d Add missed mem-mem move patterns 
llvm-svn: 83812
 2009-10-11 23:03:53 +00:00
Anton Korobeynikov
986885b62e Add MSP430 mem-mem insts support. Patch by Brian Lucas with some my refinements 
llvm-svn: 83811
 2009-10-11 23:03:28 +00:00
Chris Lattner
85457e7c14 remove some harmful code that would turn an insertelement on an undef 
into a shuffle even if it was used by another insertelement.  If the
visitation order of instcombine was wrong, this would turn a chain of
insertelements into a chain of shufflevectors, which was quite painful.

Since CollectShuffleElements handles these cases, the code can just
be nuked.

llvm-svn: 83810
 2009-10-11 23:02:46 +00:00
Chris Lattner
b033a0ac47 teach instcombine to simplify xor's harder, catching the 
new testcase.

llvm-svn: 83799
 2009-10-11 22:22:13 +00:00
Chris Lattner
d2dc77f8c0 cleanups 
llvm-svn: 83797
 2009-10-11 22:00:32 +00:00
Chris Lattner
6cf4024732 cleanup, no functionality change. 
llvm-svn: 83795
 2009-10-11 21:36:10 +00:00
Chris Lattner
100f3ac565 generalize a transformation even more: we don't care whether the 
input the the mul is a zext from bool, just that it is all zeros
other than the low bit.  This fixes some phase ordering issues
that would cause us to miss some xforms in mul.ll when the worklist
is visited differently.

llvm-svn: 83794
 2009-10-11 21:29:45 +00:00
Chris Lattner
40d1618562 simplify a transformation by making it more general. 
llvm-svn: 83792
 2009-10-11 21:22:21 +00:00
Chris Lattner
0ad392bbe7 temporarily revert previous patch 
llvm-svn: 83791
 2009-10-11 21:05:34 +00:00
Chris Lattner
aafa929524 populate instcombine's initial worklist more carefully, causing 
it to visit instructions from the start of the function to the
end of the function in the first path.  This greatly speeds up
some pathological cases (e.g. PR5150). 

llvm-svn: 83790
 2009-10-11 21:04:37 +00:00
Torok Edwin
8525f5df9a Remove CleanupDbgInfo, instcombine does this and its not worth duplicating it 
here.

llvm-svn: 83789
 2009-10-11 19:58:35 +00:00
Torok Edwin
ed37f33b81 LICM shouldn't sink/delete debug information. Fix this and add a testcase. 
For now the metadata of sinked/hoisted instructions is still wrong, but that'll
be fixed when instructions will have debug metadata directly attached.

llvm-svn: 83786
 2009-10-11 19:15:54 +00:00
Anton Korobeynikov
329def1675 Implement 'm' memory operand properly 
llvm-svn: 83785
 2009-10-11 19:14:21 +00:00
Anton Korobeynikov
4465f90db6 Implement proper asmprinting for the globals. This eliminates bogus "call" modifier and also adds support for offsets wrt globals. 
llvm-svn: 83784
 2009-10-11 19:14:02 +00:00
Anton Korobeynikov
1ca8655151 Implement asm printing for inline asm memory operands 
llvm-svn: 83783
 2009-10-11 19:13:34 +00:00
Chris Lattner
8ae883b5f0 when folding duplicate conditions, delete the 
now-probably-dead instruction tree feeding it.

llvm-svn: 83778
 2009-10-11 18:39:58 +00:00
Chris Lattner
601cc4c588 implement rdar://7293527, a trivial instcombine that llvm-gcc 
gets but clang doesn't, because it is implemented in GCC's
fold routine.

llvm-svn: 83761
 2009-10-11 07:53:15 +00:00
Chris Lattner
1832a32b78 implement a transformation in jump threading that is currently 
done by condprop, but do it in a much more general form.  The
basic idea is that we can do a limited form of tail duplication
in the case when we have a branch on a phi.  Moving the branch
up in to the predecessor block makes instruction selection
much easier and encourages chained jump threadings.

llvm-svn: 83759
 2009-10-11 07:24:57 +00:00
Chris Lattner
562cc63c29 restructure some code, no functionality change. 
llvm-svn: 83756
 2009-10-11 04:40:21 +00:00
Chris Lattner
b4e9fb6967 factor some code better and move a function, no functionality change. 
llvm-svn: 83755
 2009-10-11 04:33:43 +00:00
Chris Lattner
525c0272aa make jump threading on a phi with undef inputs happen. 
llvm-svn: 83754
 2009-10-11 04:18:15 +00:00
Chris Lattner
8b521613d3 rewrite LCSSA to use SSAUpdate, to only return true if it modifies 
the IR, and to implement the FIXME'd optimization.

llvm-svn: 83748
 2009-10-11 02:53:37 +00:00
Chris Lattner
1b8c1d1d29 clean up and simplify some code. Don't use setvector when things will be 
inserted only once, just use vector.  Don't compute ExitBlocks unless we
need it, change std::sort to array_pod_sort.

llvm-svn: 83747
 2009-10-11 01:07:15 +00:00
Chris Lattner
37ff3c0ed1 switch GVN to use SSAUpdater. Besides removing a lot of complexity 
from GVN, this also speeds it up, inserts fewer PHI nodes (see the
testcase) and allows it to remove more loads (due to fewer PHI nodes
standing in the way).

llvm-svn: 83746
 2009-10-10 23:50:30 +00:00
Chris Lattner
0aa320ae4d add a simple helper method. 
llvm-svn: 83745
 2009-10-10 23:41:48 +00:00
Chris Lattner
acf73d9839 add ability for clients of SSAUpdater to find out about the 
PHI nodes inserted.

llvm-svn: 83744
 2009-10-10 23:15:24 +00:00
Chris Lattner
31d3137c01 remove dead code 
llvm-svn: 83742
 2009-10-10 23:04:12 +00:00
Chris Lattner
db4d523cca add the ability to get a rewritten value from the middle of a block, 
not just at the end.  Add a big comment explaining when this could
be useful (which never happens for jump threading).

llvm-svn: 83741
 2009-10-10 23:00:11 +00:00
Chris Lattner
9899ce267c rename GetValueInBlock -> GetValueAtEndOfBlock to better reflect 
what it does.

llvm-svn: 83740
 2009-10-10 22:41:58 +00:00
Anton Korobeynikov
1f9ff55cbc It seems that OR operation does not affect status reg at all. 
Remove impdef of SRW. This fixes PR4779

llvm-svn: 83739
 2009-10-10 22:17:47 +00:00
Chris Lattner
0561804097 use a typedef instead of spelling out an insane type. Yay for auto someday. 
llvm-svn: 83707
 2009-10-10 09:09:20 +00:00
Chris Lattner
75e5de9243 Change jump threading to use the new SSAUpdater class instead of 
DemoteRegToStack.  This makes it more efficient (because it isn't
creating a ton of load/stores that are eventually removed by a later
mem2reg), and more slightly more effective (because those load/stores
don't get in the way of threading).

llvm-svn: 83706
 2009-10-10 09:05:58 +00:00
Chris Lattner
9c5aa00411 Implement an efficient and fully general SSA update mechanism that 
works on unstructured CFGs.  This implements PR217, our oldest open PR.

llvm-svn: 83705
 2009-10-10 09:04:27 +00:00
Chris Lattner
317eb8ff20 random tidying 
llvm-svn: 83701
 2009-10-10 06:22:45 +00:00
Dan Gohman
605f85e0e6 Create a new InstrEmitter class for translating SelectionDAG nodes 
into MachineInstrs. This is mostly just moving the code from
ScheduleDAGSDNodesEmit.cpp into a new class. This decouples MachineInstr
emitting from scheduling.

llvm-svn: 83699
 2009-10-10 01:32:21 +00:00
Dan Gohman
3b025b778b Make getMachineNode return a MachineSDNode* instead of a generic SDNode* 
since it won't do any folding. This will help avoid some inconvenient
casting.

llvm-svn: 83698
 2009-10-10 01:29:16 +00:00
Dan Gohman
84a61978de Remove a no-longer-necessary #include. 
llvm-svn: 83697
 2009-10-10 00:36:09 +00:00
Dan Gohman
177b8de981 Replace X86's CanRematLoadWithDispOperand by calling the target-independent 
MachineInstr::isInvariantLoad instead, which has the benefit of being
more complete.

llvm-svn: 83696
 2009-10-10 00:34:18 +00:00
Dan Gohman
b98d95f4f9 Fix a missing initialization of PostRAScheduler's AA member. 
llvm-svn: 83695
 2009-10-10 00:15:38 +00:00
Dan Gohman
5141b26ffa The ScheduleDAG framework now requires an AliasAnalysis argument, though 
it isn't needed in the ScheduleDAGSDNodes schedulers.

llvm-svn: 83691
 2009-10-09 23:33:48 +00:00
Dan Gohman
168ae2c7d5 Mark the LDR instruction with isReMaterializable, as it is rematerializable 
when loading from an invariant memory location.

llvm-svn: 83688
 2009-10-09 23:28:27 +00:00
Dan Gohman
5bfc2416fe Factor out LiveIntervalAnalysis' code to determine whether an instruction 
is trivially rematerializable and integrate it into
TargetInstrInfo::isTriviallyReMaterializable. This way, all places that
need to know whether an instruction is rematerializable will get the
same answer.

This enables the useful parts of the aggressive-remat option by
default -- using AliasAnalysis to determine whether a memory location
is invariant, and removes the questionable parts -- rematting operations
with virtual register inputs that may not be live everywhere.

llvm-svn: 83687
 2009-10-09 23:27:56 +00:00
Devang Patel
c97c44b584 Extract scope information from the variable itself, instead of relying on alloca or llvm.dbg.declare location. 
While recording beginning of a function, use scope info from the first location entry instead of just relying on first location entry itself.

llvm-svn: 83684
 2009-10-09 22:42:28 +00:00
Jeffrey Yasskin
7edab17bef ExecutionEngine::clearGlobalMappingsFromModule failed to remove reverse 
mappings, which could cause errors and assert-failures.  This patch fixes that,
adds a test, and refactors the global-mapping-removal code into a single place.

llvm-svn: 83678
 2009-10-09 22:10:27 +00:00
Dan Gohman
14aaff93fc Add a const qualifier. 
llvm-svn: 83677
 2009-10-09 22:09:05 +00:00
Dale Johannesen
7691b73da0 Use names instead of numbers for some of the magic 
constants used in inlining heuristics (especially
those used in more than one file).  No functional change.

llvm-svn: 83675
 2009-10-09 21:42:02 +00:00
Kevin Enderby
430e05312d Added another bit of the ARM target assembler to llvm-mc to parse register 
lists.  Changed ARMAsmParser::MatchRegisterName to return -1 instead of 0 on
errors so 0-15 values could be returned as register numbers.  Also added the
rest of the arm register names to the currently hacked up version to allow more
testing.  Some changes to ARMAsmParser::ParseOperand to give different errors
for things not yet supported and some additions to the hacked
ARMAsmParser::MatchInstruction to allow more testing for now.

llvm-svn: 83673
 2009-10-09 21:12:28 +00:00
Dan Gohman
3005d6bf9f isTriviallyReMaterializable checks the 
TargetInstrDesc::isRematerializable flag, so it isn't necessary to do
this check in its callers.

llvm-svn: 83671
 2009-10-09 21:02:10 +00:00
Dan Gohman
f2ae9c6220 Fix the x86 test-shrink optimization so that it doesn't shrink comparisons 
when one of the bits being tested would end up being the sign bit in the
narrower type, and a signed comparison is being performed, since this would
change the result of the signed comparison. This fixes PR5132.

llvm-svn: 83670
 2009-10-09 20:35:19 +00:00
Dan Gohman
4fe1a982ed Add basic infrastructure and x86 support for preserving MachineMemOperand 
information when unfolding memory references.

llvm-svn: 83656
 2009-10-09 18:10:05 +00:00
Devang Patel
a772046766 Check invalid debug info for enums. This may happen when underlyng enum is optimized away. Eventually DwarfChecker will clean this up during llvm verification stage. 
llvm-svn: 83655
 2009-10-09 17:51:49 +00:00
Jim Grosbach
809d1bfdd3 when previous scratch register is killed, flag the value as no longer tracking 
llvm-svn: 83653
 2009-10-09 17:33:33 +00:00
Dan Gohman
731afb3b6e Revert r83606 and add comments explaining why it isn't safe. 
llvm-svn: 83649
 2009-10-09 16:35:06 +00:00
Evan Cheng
ec853b9ba5 Give Dan and my recent changes, machine LICM is now code size neutral. 
llvm-svn: 83624
 2009-10-09 06:31:25 +00:00
Evan Cheng
439044f330 Fix a logic error that caused non-rematable loop invariants loads to be licm'ed out of loop. 
llvm-svn: 83622
 2009-10-09 06:21:52 +00:00
Evan Cheng
b1f6b5fccc Reset kill markers after live interval is reconstructed. 
llvm-svn: 83608
 2009-10-09 01:17:11 +00:00
Dan Gohman
e81a040ce7 Preserve HasNSW and HasNUW when constructing SCEVs for Add and Mul 
instructions.

llvm-svn: 83606
 2009-10-09 00:41:22 +00:00
Dale Johannesen
10c870b46f When considering whether to inline Callee into Caller, 
and that will make Caller too big to inline, see if it
might be better to inline Caller into its callers instead.
This situation is described in PR 2973, although I haven't
tried the specific case in SPASS.

llvm-svn: 83602
 2009-10-09 00:11:32 +00:00
Dan Gohman
4cdd530887 Add the ability to track HasNSW and HasNUW on more kinds of SCEV expressions. 
llvm-svn: 83601
 2009-10-09 00:10:36 +00:00
Bob Wilson
8092fef09a Add codegen support for NEON vst4lane intrinsics with 128-bit vectors. 
llvm-svn: 83600
 2009-10-09 00:01:36 +00:00
Bob Wilson
979cb24a81 Add codegen support for NEON vst3lane intrinsics with 128-bit vectors. 
llvm-svn: 83598
 2009-10-08 23:51:31 +00:00
Bob Wilson
233992bc56 Add codegen support for NEON vst2lane intrinsics with 128-bit vectors. 
llvm-svn: 83596
 2009-10-08 23:38:24 +00:00
Bob Wilson
5b96a53ffe Add codegen support for NEON vld4lane intrinsics with 128-bit vectors. 
Also fix some copy-and-paste errors in previous changes.

llvm-svn: 83590
 2009-10-08 22:53:57 +00:00
Evan Cheng
8eb0ce14d9 Remove code that makes no sense. 
llvm-svn: 83589
 2009-10-08 22:42:35 +00:00
Bob Wilson
7209d78713 Add codegen support for NEON vld3lane intrinsics with 128-bit vectors. 
llvm-svn: 83585
 2009-10-08 22:27:33 +00:00
Douglas Gregor
57f2c22857 Update CMake build yet again after a source file was removed 
llvm-svn: 83575
 2009-10-08 21:24:34 +00:00
Bill Wendling
d47d348cdf It's possible for a global variable to be optimized out of a metadata object. So 
we should allow a "null" with this dyn_cast.

llvm-svn: 83573
 2009-10-08 20:52:51 +00:00
Anton Korobeynikov
f9c811c948 Use lower16 / upper16 imm modifiers to asmprint 32-bit imms splitted via movt/movw pair. 
llvm-svn: 83572
 2009-10-08 20:43:22 +00:00
Devang Patel
dcfcba3a71 Clear variable debug info map at the end of the function. 
llvm-svn: 83571
 2009-10-08 20:41:17 +00:00
Bob Wilson
3a55fe2105 Add codegen support for NEON vld2lane intrinsics with 128-bit vectors. 
llvm-svn: 83568
 2009-10-08 18:56:10 +00:00
Bob Wilson
0159d0d864 Clean up some unnecessary initializations. 
llvm-svn: 83566
 2009-10-08 18:52:56 +00:00
Bob Wilson
c62c9946e2 Clean up a comment (indentation was wrong). 
llvm-svn: 83565
 2009-10-08 18:51:31 +00:00
Bob Wilson
72c8f63e50 Add a SelectionDAG getTargetInsertSubreg convenience function, 
similar to getTargetExtractSubreg.

llvm-svn: 83564
 2009-10-08 18:49:46 +00:00
Devang Patel
e16aac2206 Do not record line number to implicitly mark start of function if function has arguments. Extra line number entries trip gdb in some cases. 
llvm-svn: 83563
 2009-10-08 18:48:03 +00:00
Richard Osborne
5e56dfa489 Add missing names for the XCore specific LADD and LSUB nodes. 
llvm-svn: 83556
 2009-10-08 17:14:57 +00:00
Dan Gohman
68e044e81a Add a form of addPreserved which takes a string argument, to allow passes 
to declare that they preserve other passes without needing to pull in
additional header file or library dependencies. Convert MachineFunctionPass
and CodeGenLICM to make use of this.

llvm-svn: 83555
 2009-10-08 17:00:02 +00:00
Richard Osborne
1719935e3f Add some peepholes for signed comparisons using ashr X, X, 32. 
llvm-svn: 83549
 2009-10-08 15:38:17 +00:00
Chris Lattner
41b5fd5218 remove LoopVR pass. According to Nick: 
"LoopVR's logic was copied into ScalarEvolution::getUnsignedRange and 
::getSignedRange. Please delete LoopVR."

llvm-svn: 83531
 2009-10-08 06:42:44 +00:00
Bob Wilson
276bdabb9a Add codegen support for NEON vst4 intrinsics with <1 x i64> vectors. 
llvm-svn: 83526
 2009-10-08 05:18:18 +00:00
Jim Grosbach
9f57f9bee6 Cleanup up unused R3LiveIn tracking. 
llvm-svn: 83522
 2009-10-08 01:50:26 +00:00
Jim Grosbach
a3e1149941 Re-enable register scavenging in Thumb1 by default. 
llvm-svn: 83521
 2009-10-08 01:46:59 +00:00
Jim Grosbach
a8e8c8a28f bugfix. The target may use virtual registers that aren't tracked for re-use but are allocated by the scavenger. The re-use algorithm needs to watch for that. 
llvm-svn: 83519
 2009-10-08 01:09:45 +00:00
Bob Wilson
8aa1d328b5 Add codegen support for NEON vst3 intrinsics with <1 x i64> vectors. 
llvm-svn: 83518
 2009-10-08 00:28:28 +00:00
Bob Wilson
958e4ae815 Add codegen support for NEON vst2 intrinsics with <1 x i64> vectors. 
llvm-svn: 83513
 2009-10-08 00:21:01 +00:00
Jeffrey Yasskin
e36facef86 In instcombine's debug output, avoid printing ADD for instructions that are 
already on the worklist, and print Visited when an instruction is about to be
visited.  Net, on one input, this reduced the output size by at least 9x.

llvm-svn: 83510
 2009-10-08 00:12:24 +00:00
Bob Wilson
729cd181a2 Add codegen support for NEON vld4 intrinsics with <1 x i64> vectors. 
llvm-svn: 83508
 2009-10-07 23:54:04 +00:00
Bob Wilson
3cbf156518 Add codegen support for NEON vld3 intrinsics with <1 x i64> vectors. 
llvm-svn: 83506
 2009-10-07 23:39:57 +00:00
Bob Wilson
0ffa9679a5 Add codegen support for NEON vld2 intrinsics with <1 x i64> vectors. 
llvm-svn: 83502
 2009-10-07 22:57:01 +00:00
Jim Grosbach
cb905d28a8 reverting thumb1 scavenging default due to test failure while I figure out what's up. 
llvm-svn: 83501
 2009-10-07 22:49:41 +00:00
Chris Lattner
41e4cd7ef4 second half of lazy liveness removal. 
llvm-svn: 83500
 2009-10-07 22:49:30 +00:00
Dale Johannesen
ba62bb565d Fix handling of x86 'R' constraint. 
llvm-svn: 83499
 2009-10-07 22:47:20 +00:00
Jim Grosbach
cc952b2ff8 Enable thumb1 register scavenging by default. 
llvm-svn: 83496
 2009-10-07 22:26:31 +00:00
Jim Grosbach
a9d83ba92c Enable thumb1 register scavenging by default. 
llvm-svn: 83494
 2009-10-07 22:26:14 +00:00
Devang Patel
a7456a1335 Extract subprogram and compile unit information from the debug info attached to an instruction. 
llvm-svn: 83491
 2009-10-07 22:04:08 +00:00
Bob Wilson
e7173601a3 Add some instruction encoding bits for NEON load/store instructions. 
llvm-svn: 83490
 2009-10-07 21:53:04 +00:00
Eric Christopher
a42e55349d 80-column and whitespace fixes. 
llvm-svn: 83489
 2009-10-07 21:14:25 +00:00
Kevin Enderby
ef201aaa04 Fixed MCSectionMachO::ParseSectionSpecifier to allow an attribute of "none" so 
that a symbol stub section with no attributes can be parsed as in:
.section __TEXT,__picsymbolstub4,symbol_stubs,none,16

llvm-svn: 83488
 2009-10-07 20:57:20 +00:00