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Commit Graph

32995 Commits

Author SHA1 Message Date
Duncan Sands
4fcf6123dd I don't see any point in having both eh.selector.i32 and eh.selector.i64,
so get rid of eh.selector.i64 and rename eh.selector.i32 to eh.selector.
Likewise for eh.typeid.for.  This aligns us with gcc, which always uses a
32 bit value for the selector on all platforms.  My understanding is that
the register allocator used to assert if the selector intrinsic size didn't
match the pointer size, and this was the reason for introducing the two
variants.  However my testing shows that this is no longer the case (I
fixed some bugs in selector lowering yesterday, and some more today in the
fastisel path; these might have caused the original problems).

llvm-svn: 84106
2009-10-14 16:11:37 +00:00
Chris Lattner
a1f5264dd2 make instcombine's instruction sinking more aggressive in the
presence of PHI nodes.

llvm-svn: 84103
2009-10-14 15:21:58 +00:00
Evan Cheng
37a7a18748 Clear VisitedPHIs after use.
llvm-svn: 84080
2009-10-14 06:46:26 +00:00
Evan Cheng
907fd9c3fb Another BasicAA fix. If a value does not alias a GEP's base pointer, then it
cannot alias the GEP. GEP pointer alias rule states this clearly:
A pointer value formed from a getelementptr instruction is associated with the
addresses associated with the first operand of the getelementptr.

llvm-svn: 84079
2009-10-14 06:41:49 +00:00
Evan Cheng
c1056d9269 More code clean up based on patch feedback.
llvm-svn: 84074
2009-10-14 05:22:03 +00:00
Evan Cheng
efc0f806a4 Change VisitedPHIs into an instance variable that's freed by each alias() call.
llvm-svn: 84072
2009-10-14 05:05:02 +00:00
Dan Gohman
76221cc874 Make isSafeToClobberEFLAGS more aggressive. Teach it to scan backwards
(for uses marked kill and defs marked dead) a few instructions in
addition to forwards. Also, increase the maximum number of instructions
to scan, as it appears to help in a fair number of cases.

llvm-svn: 84061
2009-10-14 00:08:59 +00:00
Dan Gohman
49946908b4 This remat entry is basically done. There are hooks to allow targets
to remat non-load instructions as loads, and the remat code now uses
the UnmodeledSideEffects flags, MachineMemOperands, and similar things
to decide which instructions are valid for rematerialization.

llvm-svn: 84060
2009-10-14 00:02:01 +00:00
Dan Gohman
d845fbc307 Add a few README.txt items.
llvm-svn: 84059
2009-10-13 23:58:05 +00:00
Kevin Enderby
8d8e57983a Correct comment about ARM immediates using '#' not '$' and TODO for modifiers.
llvm-svn: 84055
2009-10-13 23:33:38 +00:00
Devang Patel
72f708ec2f s/DebugLoc.CompileUnit/DebugLoc.Scope/g
s/DebugLoc.InlinedLoc/DebugLoc.InlinedAtLoc/g

llvm-svn: 84054
2009-10-13 23:28:53 +00:00
Devang Patel
81485d992b Check void type before using RAUWd.
llvm-svn: 84049
2009-10-13 22:56:32 +00:00
Bob Wilson
a98883deaa More Neon clean-up: avoid the need for custom-lowering vld/st-lane intrinsics
by creating TargetConstants during instruction selection instead of during
legalization.

llvm-svn: 84042
2009-10-13 22:29:24 +00:00
Kevin Enderby
959ec973ad More bits of the ARM target assembler for llvm-mc to parse immediates.
Also fixed a couple of coding style things that crept in.  And added more
to the temporary hacked up ARMAsmParser::MatchInstruction() method for testing.

llvm-svn: 84040
2009-10-13 22:19:02 +00:00
Evan Cheng
3130aba687 Teach basic AA about PHI nodes. If all operands of a phi NoAlias another value than it's safe to declare the PHI NoAlias the value. Ditto for MustAlias.
llvm-svn: 84038
2009-10-13 22:02:20 +00:00
Bob Wilson
88df19e49a NEON VLD/VST are now fully implemented. For operations that expand to
multiple instructions, the expansion is done during selection so there is
no need to do anything special during legalization.

llvm-svn: 84036
2009-10-13 21:55:24 +00:00
Devang Patel
20d88f9e16 Do not check use_empty() before replaceAllUsesWith(). This gives ValueHandles a chance to get properly updated.
llvm-svn: 84033
2009-10-13 21:41:20 +00:00
Jeffrey Yasskin
8a0bdbb7f3 Keep track of stubs that are created. This fixes PR5162 and probably PR4822 and
4406. Patch by Nick Lewycky!

llvm-svn: 84032
2009-10-13 21:32:57 +00:00
Duncan Sands
d4a35e9f36 Introduce new convenience methods for sign extending or
truncating an SDValue (depending on whether the target
type is bigger or smaller than the value's type); or zero
extending or truncating it.  Use it in a few places (this
seems to be a popular operation, but I only modified cases
of it in SelectionDAGBuild).  In particular, the eh_selector
lowering was doing this wrong due to a repeated rather than
inverted test, fixed with this change.

llvm-svn: 84027
2009-10-13 21:04:12 +00:00
Bob Wilson
d66a3fd73b Revise ARM inline assembly memory operands to require the memory address to
be in a register.  The previous use of ARM address mode 2 was completely
arbitrary and inappropriate for Thumb.  Radar 7137468.

llvm-svn: 84022
2009-10-13 20:50:28 +00:00
Dale Johannesen
7db511a23e Add an "msasm" flag to inline asm as suggested in PR 5125.
A little ugliness is accepted to keep the binary file format
compatible.  No functional change yet.

llvm-svn: 84020
2009-10-13 20:46:56 +00:00
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
Bob Wilson
cee91108da Add codegen support for NEON vst4 intrinsics with 128-bit vectors.
llvm-svn: 83486
2009-10-07 20:49:18 +00:00
Bob Wilson
af14187764 Add codegen support for NEON vst3 intrinsics with 128-bit vectors.
llvm-svn: 83484
2009-10-07 20:30:08 +00:00
Jim Grosbach
0609c91ec4 grammar
llvm-svn: 83483
2009-10-07 19:08:36 +00:00
Bob Wilson
62a3e55cea Add codegen support for NEON vst2 intrinsics with 128-bit vectors.
llvm-svn: 83482
2009-10-07 18:47:39 +00:00
Jim Grosbach
5db951c6a2 add initializers for clarity. Add missing assignment of PrevLastUseOp.
llvm-svn: 83481
2009-10-07 18:44:24 +00:00
Owen Anderson
132727997c Remove LazyLiveness from the tree. It doesn't work right now, and I'm not going to have the time
to finish it any time soon.  If someone's interested it, they can resurrect it from SVN history.

llvm-svn: 83480
2009-10-07 18:40:17 +00:00
Bob Wilson
9bb47b3e5d Add codegen support for NEON vld4 intrinsics with 128-bit vectors.
llvm-svn: 83479
2009-10-07 18:09:32 +00:00
Kevin Enderby
c0d0a1ec58 Add another bit of the ARM target assembler to llvm-mc to parse registers
with writeback, things like "sp!", etc.  Also added some more stuff to the
temporarily hacked methods ARMAsmParser::MatchRegisterName and
ARMAsmParser::MatchInstruction to allow more parser testing.

llvm-svn: 83477
2009-10-07 18:01:35 +00:00
Dan Gohman
0447afe915 Replace some code for aggressive-remat with MachineInstr::isInvariantLoad, and
teach it how to recognize invariant physical registers.

llvm-svn: 83476
2009-10-07 17:47:20 +00:00
Dan Gohman
b95136e649 Replace TargetInstrInfo::isInvariantLoad and its target-specific
implementations with a new MachineInstr::isInvariantLoad, which uses
MachineMemOperands and is target-independent. This brings MachineLICM
and other functionality to targets which previously lacked an
isInvariantLoad implementation.

llvm-svn: 83475
2009-10-07 17:38:06 +00:00
Dan Gohman
aa09eaa3e8 Add a few simple MachineVerifier checks for MachineMemOperands.
llvm-svn: 83474
2009-10-07 17:36:00 +00:00
Bob Wilson
b38401ccef Add codegen support for NEON vld3 intrinsics with 128-bit vectors.
llvm-svn: 83471
2009-10-07 17:24:55 +00:00
Bob Wilson
a77f6a7814 Rearrange code for selecting vld2 intrinsics. No functionality change.
This is just to be more consistent with the forthcoming code for vld3/4.

llvm-svn: 83470
2009-10-07 17:23:09 +00:00
Jim Grosbach
61c5ce1bde Add register-reuse to frame-index register scavenging. When a target uses
a virtual register to eliminate a frame index, it can return that register
and the constant stored there to PEI to track. When scavenging to allocate
for those registers, PEI then tracks the last-used register and value, and
if it is still available and matches the value for the next index, reuses
the existing value rather and removes the re-materialization instructions.
Fancier tracking and adjustment of scavenger allocations to keep more
values live for longer is possible, but not yet implemented and would likely
be better done via a different, less special-purpose, approach to the
problem.

eliminateFrameIndex() is modified so the target implementations can return
the registers they wish to be tracked for reuse.

ARM Thumb1 implements and utilizes the new mechanism. All other targets are
simply modified to adjust for the changed eliminateFrameIndex() prototype.

llvm-svn: 83467
2009-10-07 17:12:56 +00:00
Devang Patel
c411175393 Do not assume that the module is set.
llvm-svn: 83462
2009-10-07 16:37:55 +00:00
Torok Edwin
6a66b4edd1 Add PR to this FIXME, looks like I didn't commit this change after all.
llvm-svn: 83457
2009-10-07 09:22:55 +00:00
Duncan Sands
27cb155f76 Make getPointerTo return a const PointerType* rather than
an unqualified PointerType* because it seems more correct.

llvm-svn: 83454
2009-10-07 07:35:19 +00:00
Eric Christopher
e6bebc66a7 Add FreeInst to the "is a call" check for Insts that are calls, but
not intrinsics.

llvm-svn: 83441
2009-10-07 00:54:08 +00:00
Dan Gohman
564b5f75ac Fix this comment. The loop header is the loop entry point.
llvm-svn: 83437
2009-10-07 00:33:10 +00:00
Anton Korobeynikov
aba66ae89b Add PseudoSourceValues for constpool stuff on ELF (Darwin should use something similar)
and register spills.

llvm-svn: 83435
2009-10-07 00:06:35 +00:00
Eric Christopher
8720c9ca69 While we still have a MallocInst treat it as a call like any other
for inlining.

When MallocInst goes away this code will be subsumed as part of
calls and work just fine...

llvm-svn: 83434
2009-10-07 00:02:18 +00:00
Kevin Enderby
2c772c1ae9 Added bits of the ARM target assembler to llvm-mc to parse some load instruction
operands.  Some parsing of arm memory operands for preindexing and postindexing
forms including with register controled shifts.  This is a work in progress.

llvm-svn: 83424
2009-10-06 22:26:42 +00:00
Bob Wilson
8cd1ea81c4 Add codegen support for NEON vld2 operations on quad registers.
llvm-svn: 83422
2009-10-06 22:01:59 +00:00
Bob Wilson
8c108dc476 Use copyRegToReg hook to copy registers.
llvm-svn: 83421
2009-10-06 22:01:15 +00:00
Jeffrey Yasskin
c4f2348fe7 r83391 was completely broken since Twines keep references to their inputs, and
some of the inputs were temporaries.  Here's a real fix for the miscompilation.
Thanks to sabre for pointing out the problem.

llvm-svn: 83417
2009-10-06 21:45:26 +00:00
Bob Wilson
21056e1c2e Fix a comment typo.
Patch by Johnny Chen.

llvm-svn: 83407
2009-10-06 20:18:46 +00:00
Nicolas Geoffray
bde5513d27 Bugfix for the CommaSeparated option. The original code was adding the whole
string at the end of the list, instead of the last comma-separated string.

llvm-svn: 83405
2009-10-06 19:55:53 +00:00
Ted Kremenek
4b5e7b5661 Update CMake file.
llvm-svn: 83404
2009-10-06 19:45:38 +00:00
Devang Patel
1639c0e45a Add support to handle debug info attached to an instruction.
This is not yet enabled.

llvm-svn: 83400
2009-10-06 18:37:31 +00:00
Dan Gohman
a803c712dd Instead of printing unnecessary basic block labels as labels in
verbose-asm mode, print comments instead. This eliminates a non-comment
difference between verbose-asm mode and non-verbose-asm mode.

Also, factor out the relevant code out of all the targets and into
target-independent code.

llvm-svn: 83392
2009-10-06 17:38:38 +00:00
Jeffrey Yasskin
572ef68cf5 Fix PR5112, a miscompilation on gcc-4.0.3. Patch by Collin Winter!
llvm-svn: 83391
2009-10-06 17:25:50 +00:00
Chris Lattner
e87add4b88 remove predicate simplifier, it never got the last bugs beaten
out of it, and jump threading, condprop and gvn are now getting
most of the benefit.  This was approved by Nicholas and Nicolas.

llvm-svn: 83390
2009-10-06 16:59:46 +00:00
Richard Osborne
90a7ea5c13 Remove xs1b predicate since it is no longer needed to differentiate betweem
xs1a and xs1b.

llvm-svn: 83383
2009-10-06 16:17:57 +00:00
Richard Osborne
b692ade672 Remove xs1a subtarget. xs1a is a preproduction device used in
early development boards which is no longer supported in the
XMOS toolchain.

llvm-svn: 83381
2009-10-06 16:01:09 +00:00
Richard Osborne
ebd697eca6 Default to the xs1b subtarget
llvm-svn: 83380
2009-10-06 15:41:52 +00:00
Duncan Sands
2400ad7236 Introduce and use convenience methods for getting pointer types
where the element is of a basic builtin type.  For example, to get
an i8* use getInt8PtrTy.

llvm-svn: 83379
2009-10-06 15:40:36 +00:00
Jim Grosbach
d8a4aaa624 grammar
llvm-svn: 83378
2009-10-06 15:03:44 +00:00
Devang Patel
bad114ca60 Fix cut-n-pasto.
llvm-svn: 83367
2009-10-06 03:15:38 +00:00
Devang Patel
2fb4294e97 Update processDebugLoc() to handle requests to process debug info, before and after emitting instructions.
llvm-svn: 83364
2009-10-06 03:04:58 +00:00
Devang Patel
a8f35ac640 Update processDebugLoc() so that it can be used to process debug info before and after printing an instruction.
llvm-svn: 83363
2009-10-06 02:19:11 +00:00
Devang Patel
3200e99109 Remove dead code.
llvm-svn: 83362
2009-10-06 02:01:32 +00:00
Devang Patel
0141a90812 Add utility routine to set begin and end labels for DbgScopes.
This will be used by processDebugLoc().

llvm-svn: 83361
2009-10-06 01:50:42 +00:00
Devang Patel
2001f5878b Remove unintentional function decl.
llvm-svn: 83356
2009-10-06 01:31:35 +00:00
Devang Patel
ac511d1acf Add utility routine to collect variable debug info. This is not yet used.
llvm-svn: 83355
2009-10-06 01:26:37 +00:00
Jeffrey Yasskin
4b011e6a51 Fix http://llvm.org/PR5116 by rolling back r60822. This passes `make unittests
check-lit` on both x86-64 Linux and x86-32 Darwin.

llvm-svn: 83353
2009-10-06 00:35:55 +00:00
Devang Patel
6a7f2ee022 Set default location for the function if it is not already set.
This code is not  yet enabled.

llvm-svn: 83349
2009-10-06 00:09:08 +00:00
Devang Patel
3b3d8a9d09 Existence of a compile unit for input source file is a good indicator to check debug info's presence in a module.
llvm-svn: 83348
2009-10-06 00:03:14 +00:00
Devang Patel
f129b0d44f If subprogram die is not available then construct new one.
This can happen if debug info is processed lazily.

llvm-svn: 83347
2009-10-05 23:59:00 +00:00
Devang Patel
dff583ac49 Adjust context for the global variables that are not at file scope, e.g.
void foo() { static int bar = 42; }
Here, foo's DIE is parent of bar's DIE.

llvm-svn: 83344
2009-10-05 23:40:42 +00:00
Devang Patel
4e9591a170 Set address while constructing DIE.
llvm-svn: 83343
2009-10-05 23:22:08 +00:00
Evan Phoenix
1b803795c7 Extend ConstantFolding to understand signed overflow variants
llvm-svn: 83338
2009-10-05 22:53:52 +00:00
Jim Grosbach
d6da133b85 In Thumb1, the register scavenger is not always able to use an emergency
spill slot. When frame references are via the frame pointer, they will be
negative, but Thumb1 load/store instructions only allow positive immediate
offsets. Instead, Thumb1 will spill to R12.

llvm-svn: 83336
2009-10-05 22:30:23 +00:00
Torok Edwin
1a53fd9356 Don't treat malloc calls with non-matching prototype as malloc.
Fixes second part of PR5130, miscompilation in FreeBSD kernel, where malloc takes 3 params,
and *does* initialize memory.

llvm-svn: 83324
2009-10-05 21:15:43 +00:00
Edward O'Callaghan
8b7189e234 No newline at end of files.
llvm-svn: 83318
2009-10-05 18:43:19 +00:00
Devang Patel
28b7c6155c Gracefully handle various scopes while recording source line info.
llvm-svn: 83317
2009-10-05 18:03:19 +00:00
Dan Gohman
176e47a413 Remove an unnnecessary LLVMContext argument in
ConstantFoldLoadThroughGEPConstantExpr.

llvm-svn: 83311
2009-10-05 16:36:26 +00:00
Dan Gohman
a926123a24 Use Use::operator= instead of Use::set, for consistency.
llvm-svn: 83310
2009-10-05 16:31:55 +00:00
Dan Gohman
cc0c3fe456 Remove explicit enum integer values. They don't appear to be needed, and
they make it less convenient to add new entries.

llvm-svn: 83308
2009-10-05 15:52:08 +00:00
Dan Gohman
b38864fb37 Add RIP to GR64_NOREX. This fixed a MachineVerifier error when RIP
is used in an operand which requires GR64_NOREX.

llvm-svn: 83307
2009-10-05 15:42:08 +00:00
Chris Lattner
a3cf123e86 strength reduce a ton of type equality tests to check the typeid (Through
the new predicates I added) instead of going through a context and doing a
pointer comparison.  Besides being cheaper, this allows a smart compiler
to turn the if sequence into a switch.

llvm-svn: 83297
2009-10-05 05:54:46 +00:00
Chris Lattner
7d19c8841c teach the optimizer how to constant fold uadd/usub intrinsics.
llvm-svn: 83295
2009-10-05 05:26:04 +00:00
Chris Lattner
8b72a24a35 simplify this code a bunch.
llvm-svn: 83294
2009-10-05 05:06:24 +00:00
Chris Lattner
24a77e2ade code simplifications.
llvm-svn: 83292
2009-10-05 05:00:35 +00:00
Chris Lattner
513b66b237 instcombine shouldn't delete all null checks for mallocs.
This fixes PR5130.

llvm-svn: 83290
2009-10-05 02:47:47 +00:00
Chris Lattner
2c0a4fb325 stop MachineFunctionPass from claiming that it preserves LoopDependence info,
which causes dependence info to be linked into lli.

llvm-svn: 83289
2009-10-05 02:35:05 +00:00
Chris Lattner
1aa661ce46 remove llvm-db: it is completely broken and if anyone wants to do a debugger,
they should not base it on llvm-db (which not following almost any "best practices").

llvm-svn: 83288
2009-10-05 02:29:51 +00:00
Owen Anderson
412df08b59 Do away with the strange use of BitVectors in SSI, and just use normal sets. This makes the code much more C++/LLVM-ish.
llvm-svn: 83286
2009-10-04 18:49:55 +00:00
Jakob Stoklund Olesen
61a76937ee Whitespace and formatting.
llvm-svn: 83285
2009-10-04 18:18:39 +00:00
Owen Anderson
cadab85644 Fix a typo in the comment.
llvm-svn: 83283
2009-10-04 17:52:13 +00:00
Owen Anderson
18cecec6a0 SSI needs to require DT and DF transitively, since it uses them outside of its runOnFunction.
Similarly, it can be marked setPreservesAll, since it does no work in its runOnFunction.

llvm-svn: 83282
2009-10-04 17:47:39 +00:00
Evan Cheng
eae1bb9779 Allow -inline-threshold override default threshold even if compiling to optimize for size.
llvm-svn: 83274
2009-10-04 06:13:54 +00:00
Nick Lewycky
5bf0eb2dd5 Requires element types in a constant initializer to match the element types of
of the constant. This reverts r6544 and r7428.

llvm-svn: 83270
2009-10-03 19:30:43 +00:00
Bob Wilson
64ce6ef65a Add a comment to describe letters used in multiclass name suffixes.
llvm-svn: 83257
2009-10-03 04:44:16 +00:00
Bob Wilson
be258e083a Fix encoding problem for VMLS instruction.
Thanks to Johnny Chen for pointing this out!

llvm-svn: 83256
2009-10-03 04:41:21 +00:00
Lang Hames
40530eacdb Oops. Renamed remaining MachineInstrIndex references.
llvm-svn: 83255
2009-10-03 04:31:31 +00:00
Lang Hames
f6903a7043 Renamed MachineInstrIndex to LiveIndex.
llvm-svn: 83254
2009-10-03 04:21:37 +00:00
Benjamin Kramer
8cebbc5761 MingW build fixes
- MingW needs -lpsapi (in ${LIBS}) linked after -lLLVMSystem.
  Noticed by Ronald Pijnacker!

- Some parts of the System library must be build with exceptions on windows.
  Based on a patch by Jay Foad!

llvm-svn: 83251
2009-10-02 19:36:31 +00:00
Benjamin Kramer
aa33886dd7 Fix a use-after-free in post-ra-scheduling.
MI->addOperand invalidates references to it's operands, avoid touching
the operand after a new one was added.

llvm-svn: 83249
2009-10-02 15:59:52 +00:00
Evan Cheng
8cf9f56cca getFunctionAlignment should return log2 alignment.
llvm-svn: 83242
2009-10-02 06:57:25 +00:00