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Author SHA1 Message Date
Dan Gohman
9b39cf5ac8 Start refactoring the inline cost estimation code so that it can be used 
for purposes other than inlining.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83997 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-13 18:24:11 +00:00
Chris Lattner
11f15dbb28 change simplifycfg to not duplicate 'unwind' instructions. Hopefully 
this will increase the likelihood of common code getting sunk towards
the unwind.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83996 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-13 18:13:05 +00:00
Dan Gohman
b24f6c7495 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83992 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-13 17:50:43 +00:00
Jeffrey Yasskin
4c5b23b24f 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83987 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-13 17:42:08 +00:00
Devang Patel
549e81f7de "there is not any instruction with attached debug info in this module" does not mean "there is no debug info in this module". :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83984 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-13 17:35:35 +00:00
Bob Wilson
5361cd2c7d Add some ARM instruction encoding bits. 
Patch by Johnny Chen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83983 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-13 17:35:30 +00:00
Bob Wilson
4796ba2e70 Fix regression introduced by r83894. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83982 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-13 17:29:13 +00:00
Devang Patel
740d0db812 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83977 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-13 17:00:54 +00:00
Bob Wilson
a7fcb9b840 Fix a tab. Thanks to Johnny Chen for pointing it out. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83973 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-13 15:27:23 +00:00
Nick Lewycky
321333e51e Force memory use markers to have a ConstantInt for the size argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83960 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-13 07:57:33 +00:00
Nick Lewycky
5c9be67cff Teach BasicAA a little something about the atomic intrinsics: they can only 
modify through the pointer they're given.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83959 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-13 07:48:38 +00:00
Daniel Dunbar
6e4bdfc229 Fix a -Asserts warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83950 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-13 06:47:08 +00:00
Victor Hernandez
5c78736f85 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83931 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-13 01:42:53 +00:00
Devang Patel
6ef7517314 Find enclosing subprogram info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83922 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-12 23:11:24 +00:00
Devang Patel
1f03471a2d Set default location for a function if it is not set. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83921 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-12 23:10:55 +00:00
Kevin Enderby
6bd266e567 Fix two warnings about unused variables that are only used in assert() calls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83917 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-12 22:51:49 +00:00
Bob Wilson
af4b735219 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83916 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-12 22:49:05 +00:00
Kevin Enderby
9d36962ab6 Fix a problem in the code where ARMAsmParser::ParseShift() second argument 
should have been a pointer to a reference.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83915 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-12 22:39:54 +00:00
Evan Cheng
67d1d1f832 Make licm debug message readable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83908 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-12 22:25:23 +00:00
Bob Wilson
757652c5ba Change CreateNewWater method to return NewMBB by reference. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83905 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-12 21:39:43 +00:00
Bob Wilson
f98032ef64 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83902 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-12 21:23:15 +00:00
Bob Wilson
32c50e8f99 Another minor clean-up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83897 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-12 20:45:53 +00:00
Bob Wilson
d637c1a495 Remove redundant parameter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83894 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-12 20:37:23 +00:00
Bob Wilson
3b7573517c Use early exit to reduce indentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83874 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-12 19:04:03 +00:00
Bob Wilson
9d16f2c0ba Change to return a value by reference. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83873 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-12 19:01:12 +00:00
Bob Wilson
034de5f65f Add a typedef for an iterator. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83872 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-12 18:52:13 +00:00
Dale Johannesen
3a6b9eb868 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83871 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-12 18:49:00 +00:00
Dale Johannesen
c1deda50ca Fix warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83870 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-12 18:45:32 +00:00
Jeffrey Yasskin
6a9291ad55 Fix http://llvm.org/PR5160, to let CallbackVHs modify other ValueHandles on the 
same Value without breaking things.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83861 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-12 17:43:32 +00:00
Dan Gohman
7fa50ede61 Remove a redundant member variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83857 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-12 16:44:10 +00:00
Dan Gohman
0032681424 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83853 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-12 16:36:12 +00:00
Nate Begeman
677c89d8bf 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%


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83824 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-12 05:53:58 +00:00
Edward O'Callaghan
df40664a63 Haiku porting patches, Credit to Paul Davey. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83823 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-12 04:57:20 +00:00
Chris Lattner
f5e16139f2 Fix PR5087, patch by Jakub Staszak! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83822 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-12 04:22:44 +00:00
Chris Lattner
885dffc391 add some more hooks to the C bindings, patch by Kenneth Uildriks! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83821 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-12 04:01:02 +00:00
Chris Lattner
67f7d549db 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83818 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-12 03:58:40 +00:00
Chris Lattner
b152a87b10 revert r83814 for now, it is making the llvm-gcc bootstrap unhappy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83817 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-11 23:56:08 +00:00
Chris Lattner
6d0111f6c7 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). 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83814 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-11 23:17:43 +00:00
Anton Korobeynikov
436604d505 Add missed mem-mem move patterns 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83812 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-11 23:03:53 +00:00
Anton Korobeynikov
afac8abfc0 Add MSP430 mem-mem insts support. Patch by Brian Lucas with some my refinements 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83811 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-11 23:03:28 +00:00
Chris Lattner
2ad8cf5555 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83810 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-11 23:02:46 +00:00
Chris Lattner
d088314998 teach instcombine to simplify xor's harder, catching the 
new testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83799 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-11 22:22:13 +00:00
Chris Lattner
7acdf1de06 cleanups 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83797 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-11 22:00:32 +00:00
Chris Lattner
a249847008 cleanup, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83795 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-11 21:36:10 +00:00
Chris Lattner
d2c58366d8 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83794 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-11 21:29:45 +00:00
Chris Lattner
0036e3a469 simplify a transformation by making it more general. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83792 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-11 21:22:21 +00:00
Chris Lattner
61488a3310 temporarily revert previous patch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83791 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-11 21:05:34 +00:00
Chris Lattner
9a12a786b0 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). 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83790 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-11 21:04:37 +00:00
Torok Edwin
849a639e17 Remove CleanupDbgInfo, instcombine does this and its not worth duplicating it 
here.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83789 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-11 19:58:35 +00:00
Torok Edwin
9289ae85b4 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83786 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-11 19:15:54 +00:00
Anton Korobeynikov
95eb470ce1 Implement 'm' memory operand properly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83785 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-11 19:14:21 +00:00
Anton Korobeynikov
c4be951ddc Implement proper asmprinting for the globals. This eliminates bogus "call" modifier and also adds support for offsets wrt globals. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83784 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-11 19:14:02 +00:00
Anton Korobeynikov
da3d796424 Implement asm printing for inline asm memory operands 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83783 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-11 19:13:34 +00:00
Chris Lattner
5a06cf644f when folding duplicate conditions, delete the 
now-probably-dead instruction tree feeding it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83778 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-11 18:39:58 +00:00
Chris Lattner
8af304ab3b implement rdar://7293527, a trivial instcombine that llvm-gcc 
gets but clang doesn't, because it is implemented in GCC's
fold routine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83761 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-11 07:53:15 +00:00
Chris Lattner
78c552ef30 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83759 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-11 07:24:57 +00:00
Chris Lattner
6b65f47ad5 restructure some code, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83756 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-11 04:40:21 +00:00
Chris Lattner
bdbf1a177d factor some code better and move a function, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83755 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-11 04:33:43 +00:00
Chris Lattner
e33583b7c2 make jump threading on a phi with undef inputs happen. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83754 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-11 04:18:15 +00:00
Chris Lattner
8c1db67a4c rewrite LCSSA to use SSAUpdate, to only return true if it modifies 
the IR, and to implement the FIXME'd optimization.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83748 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-11 02:53:37 +00:00
Chris Lattner
39b0c3d613 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83747 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-11 01:07:15 +00:00
Chris Lattner
a09fbf0af0 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).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83746 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-10 23:50:30 +00:00
Chris Lattner
0bef562ea2 add a simple helper method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83745 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-10 23:41:48 +00:00
Chris Lattner
f5a1fb6b24 add ability for clients of SSAUpdater to find out about the 
PHI nodes inserted.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83744 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-10 23:15:24 +00:00
Chris Lattner
813dbd5912 remove dead code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83742 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-10 23:04:12 +00:00
Chris Lattner
1a8d4de397 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).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83741 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-10 23:00:11 +00:00
Chris Lattner
5fb107287f rename GetValueInBlock -> GetValueAtEndOfBlock to better reflect 
what it does.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83740 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-10 22:41:58 +00:00
Anton Korobeynikov
8f8e9f0830 It seems that OR operation does not affect status reg at all. 
Remove impdef of SRW. This fixes PR4779


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83739 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-10 22:17:47 +00:00
Chris Lattner
f9920fabac use a typedef instead of spelling out an insane type. Yay for auto someday. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83707 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-10 09:09:20 +00:00
Chris Lattner
433a0dbb26 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).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83706 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-10 09:05:58 +00:00
Chris Lattner
93f3bcf7f3 Implement an efficient and fully general SSA update mechanism that 
works on unstructured CFGs.  This implements PR217, our oldest open PR.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83705 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-10 09:04:27 +00:00
Chris Lattner
2d7f1d24bf random tidying 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83701 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-10 06:22:45 +00:00
Dan Gohman
bcea859fc1 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83699 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-10 01:32:21 +00:00
Dan Gohman
c81b783e27 Make getMachineNode return a MachineSDNode* instead of a generic SDNode* 
since it won't do any folding. This will help avoid some inconvenient
casting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83698 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-10 01:29:16 +00:00
Dan Gohman
4e6f7a0179 Remove a no-longer-necessary #include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83697 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-10 00:36:09 +00:00
Dan Gohman
3731bc026c Replace X86's CanRematLoadWithDispOperand by calling the target-independent 
MachineInstr::isInvariantLoad instead, which has the benefit of being
more complete.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83696 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-10 00:34:18 +00:00
Dan Gohman
5bf7c2a346 Fix a missing initialization of PostRAScheduler's AA member. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83695 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-10 00:15:38 +00:00
Dan Gohman
98976e4dcd The ScheduleDAG framework now requires an AliasAnalysis argument, though 
it isn't needed in the ScheduleDAGSDNodes schedulers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83691 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-09 23:33:48 +00:00
Dan Gohman
59ac57153b Mark the LDR instruction with isReMaterializable, as it is rematerializable 
when loading from an invariant memory location.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83688 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-09 23:28:27 +00:00
Dan Gohman
a70dca156f 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83687 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-09 23:27:56 +00:00
Devang Patel
ac1ceb3dd3 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83684 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-09 22:42:28 +00:00
Jeffrey Yasskin
c89d27a440 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83678 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-09 22:10:27 +00:00
Dan Gohman
769b7f8953 Add a const qualifier. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83677 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-09 22:09:05 +00:00
Dale Johannesen
bdb984bc27 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83675 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-09 21:42:02 +00:00
Kevin Enderby
d7894f105a 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83673 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-09 21:12:28 +00:00
Dan Gohman
599a87aca0 isTriviallyReMaterializable checks the 
TargetInstrDesc::isRematerializable flag, so it isn't necessary to do
this check in its callers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83671 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-09 21:02:10 +00:00
Dan Gohman
11596ed43c 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83670 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-09 20:35:19 +00:00
Dan Gohman
91e69c3715 Add basic infrastructure and x86 support for preserving MachineMemOperand 
information when unfolding memory references.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83656 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-09 18:10:05 +00:00
Devang Patel
c525472828 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83655 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-09 17:51:49 +00:00
Jim Grosbach
71c8dc9b20 when previous scratch register is killed, flag the value as no longer tracking 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83653 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-09 17:33:33 +00:00
Dan Gohman
7a721956f8 Revert r83606 and add comments explaining why it isn't safe. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83649 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-09 16:35:06 +00:00
Evan Cheng
64efb555ce Give Dan and my recent changes, machine LICM is now code size neutral. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83624 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-09 06:31:25 +00:00
Evan Cheng
3dc326ba83 Fix a logic error that caused non-rematable loop invariants loads to be licm'ed out of loop. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83622 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-09 06:21:52 +00:00
Evan Cheng
35ca9203f2 Reset kill markers after live interval is reconstructed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83608 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-09 01:17:11 +00:00
Dan Gohman
4db3581a28 Preserve HasNSW and HasNUW when constructing SCEVs for Add and Mul 
instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83606 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-09 00:41:22 +00:00
Dale Johannesen
e91b9a3b59 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83602 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-09 00:11:32 +00:00
Dan Gohman
3645b01002 Add the ability to track HasNSW and HasNUW on more kinds of SCEV expressions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83601 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-09 00:10:36 +00:00
Bob Wilson
5631139a69 Add codegen support for NEON vst4lane intrinsics with 128-bit vectors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83600 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-09 00:01:36 +00:00
Bob Wilson
8cdb269686 Add codegen support for NEON vst3lane intrinsics with 128-bit vectors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83598 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-08 23:51:31 +00:00
Bob Wilson
c5c6edb74f Add codegen support for NEON vst2lane intrinsics with 128-bit vectors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83596 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-08 23:38:24 +00:00
Bob Wilson
62e053e5a1 Add codegen support for NEON vld4lane intrinsics with 128-bit vectors. 
Also fix some copy-and-paste errors in previous changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83590 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-08 22:53:57 +00:00
Evan Cheng
9c8068078b Remove code that makes no sense. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83589 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-08 22:42:35 +00:00
Bob Wilson
0bf7d998b4 Add codegen support for NEON vld3lane intrinsics with 128-bit vectors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83585 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-08 22:27:33 +00:00
Douglas Gregor
c6f520be0d Update CMake build yet again after a source file was removed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83575 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-08 21:24:34 +00:00
Bill Wendling
26c6cf4cec 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83573 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-08 20:52:51 +00:00
Anton Korobeynikov
632606c724 Use lower16 / upper16 imm modifiers to asmprint 32-bit imms splitted via movt/movw pair. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83572 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-08 20:43:22 +00:00
Devang Patel
85d29e2de3 Clear variable debug info map at the end of the function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83571 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-08 20:41:17 +00:00
Bob Wilson
30aea9d96e Add codegen support for NEON vld2lane intrinsics with 128-bit vectors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83568 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-08 18:56:10 +00:00
Bob Wilson
cd7e327cdf Clean up some unnecessary initializations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83566 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-08 18:52:56 +00:00
Bob Wilson
af4a891273 Clean up a comment (indentation was wrong). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83565 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-08 18:51:31 +00:00
Bob Wilson
5fcbf0d26e Add a SelectionDAG getTargetInsertSubreg convenience function, 
similar to getTargetExtractSubreg.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83564 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-08 18:49:46 +00:00
Devang Patel
eda312193d Do not record line number to implicitly mark start of function if function has arguments. Extra line number entries trip gdb in some cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83563 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-08 18:48:03 +00:00
Richard Osborne
bfa19bf4c2 Add missing names for the XCore specific LADD and LSUB nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83556 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-08 17:14:57 +00:00
Dan Gohman
8a261e44f7 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83555 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-08 17:00:02 +00:00
Richard Osborne
c96c8e0e81 Add some peepholes for signed comparisons using ashr X, X, 32. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83549 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-08 15:38:17 +00:00
Chris Lattner
8ef27511e3 remove LoopVR pass. According to Nick: 
"LoopVR's logic was copied into ScalarEvolution::getUnsignedRange and 
::getSignedRange. Please delete LoopVR."



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83531 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-08 06:42:44 +00:00
Bob Wilson
deb3141cf5 Add codegen support for NEON vst4 intrinsics with <1 x i64> vectors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83526 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-08 05:18:18 +00:00
Jim Grosbach
1f30dcbd8d Cleanup up unused R3LiveIn tracking. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83522 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-08 01:50:26 +00:00
Jim Grosbach
65c58daa8b Re-enable register scavenging in Thumb1 by default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83521 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-08 01:46:59 +00:00
Jim Grosbach
e40bf5f9f4 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83519 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-08 01:09:45 +00:00
Bob Wilson
5adf60c03b Add codegen support for NEON vst3 intrinsics with <1 x i64> vectors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83518 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-08 00:28:28 +00:00
Bob Wilson
24e04c535f Add codegen support for NEON vst2 intrinsics with <1 x i64> vectors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83513 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-08 00:21:01 +00:00
Jeffrey Yasskin
4306963170 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83510 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-08 00:12:24 +00:00
Bob Wilson
0ea38bb939 Add codegen support for NEON vld4 intrinsics with <1 x i64> vectors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83508 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 23:54:04 +00:00
Bob Wilson
c67160c010 Add codegen support for NEON vld3 intrinsics with <1 x i64> vectors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83506 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 23:39:57 +00:00
Bob Wilson
a4288080e6 Add codegen support for NEON vld2 intrinsics with <1 x i64> vectors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83502 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 22:57:01 +00:00
Jim Grosbach
9f3a559dff reverting thumb1 scavenging default due to test failure while I figure out what's up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83501 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 22:49:41 +00:00
Chris Lattner
831a2bba04 second half of lazy liveness removal. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83500 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 22:49:30 +00:00
Dale Johannesen
5f3663e51d Fix handling of x86 'R' constraint. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83499 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 22:47:20 +00:00
Jim Grosbach
bafa3d9f6a Enable thumb1 register scavenging by default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83496 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 22:26:31 +00:00
Jim Grosbach
ec1434dd89 Enable thumb1 register scavenging by default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83494 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 22:26:14 +00:00
Devang Patel
beab41b874 Extract subprogram and compile unit information from the debug info attached to an instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83491 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 22:04:08 +00:00
Bob Wilson
b07c171624 Add some instruction encoding bits for NEON load/store instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83490 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 21:53:04 +00:00
Eric Christopher
37c8b86d43 80-column and whitespace fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83489 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 21:14:25 +00:00
Kevin Enderby
5440f6309d 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83488 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 20:57:20 +00:00
Bob Wilson
63c9063434 Add codegen support for NEON vst4 intrinsics with 128-bit vectors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83486 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 20:49:18 +00:00
Bob Wilson
66a70639da Add codegen support for NEON vst3 intrinsics with 128-bit vectors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83484 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 20:30:08 +00:00
Jim Grosbach
b8452b80f4 grammar 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83483 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 19:08:36 +00:00
Bob Wilson
d285575f87 Add codegen support for NEON vst2 intrinsics with 128-bit vectors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83482 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 18:47:39 +00:00
Jim Grosbach
391e1704c2 add initializers for clarity. Add missing assignment of PrevLastUseOp. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83481 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 18:44:24 +00:00
Owen Anderson
c024df648e 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83480 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 18:40:17 +00:00
Bob Wilson
7708c22baa Add codegen support for NEON vld4 intrinsics with 128-bit vectors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83479 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 18:09:32 +00:00
Kevin Enderby
99e6d4e839 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83477 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 18:01:35 +00:00
Dan Gohman
2627e08e05 Replace some code for aggressive-remat with MachineInstr::isInvariantLoad, and 
teach it how to recognize invariant physical registers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83476 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 17:47:20 +00:00
Dan Gohman
e33f44cfc5 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83475 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 17:38:06 +00:00
Dan Gohman
2dbc4c84f6 Add a few simple MachineVerifier checks for MachineMemOperands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83474 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 17:36:00 +00:00
Bob Wilson
ff8952e8a9 Add codegen support for NEON vld3 intrinsics with 128-bit vectors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83471 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 17:24:55 +00:00
Bob Wilson
228c08b8dd Rearrange code for selecting vld2 intrinsics. No functionality change. 
This is just to be more consistent with the forthcoming code for vld3/4.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83470 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 17:23:09 +00:00
Jim Grosbach
b58f498f75 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83467 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 17:12:56 +00:00
Devang Patel
7f93f4d66c Do not assume that the module is set. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83462 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 16:37:55 +00:00
Torok Edwin
4de86fe0d7 Add PR to this FIXME, looks like I didn't commit this change after all. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83457 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 09:22:55 +00:00
Duncan Sands
83ed76869e Make getPointerTo return a const PointerType* rather than 
an unqualified PointerType* because it seems more correct.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83454 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 07:35:19 +00:00
Eric Christopher
00d67db384 Add FreeInst to the "is a call" check for Insts that are calls, but 
not intrinsics.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83441 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 00:54:08 +00:00
Dan Gohman
bd31b173d2 Fix this comment. The loop header is the loop entry point. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83437 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 00:33:10 +00:00
Anton Korobeynikov
249fb339ad Add PseudoSourceValues for constpool stuff on ELF (Darwin should use something similar) 
and register spills.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83435 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 00:06:35 +00:00
Eric Christopher
0704300d88 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...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83434 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 00:02:18 +00:00
Kevin Enderby
a7ba3a81c0 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83424 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 22:26:42 +00:00
Bob Wilson
3bf12ab860 Add codegen support for NEON vld2 operations on quad registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83422 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 22:01:59 +00:00
Bob Wilson
349d82d400 Use copyRegToReg hook to copy registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83421 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 22:01:15 +00:00
Jeffrey Yasskin
0b22873adc 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83417 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 21:45:26 +00:00
Bob Wilson
a3e8bf8412 Fix a comment typo. 
Patch by Johnny Chen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83407 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 20:18:46 +00:00
Nicolas Geoffray
35b305863a 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83405 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 19:55:53 +00:00
Ted Kremenek
3351085d84 Update CMake file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83404 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 19:45:38 +00:00
Devang Patel
60b35bd8ec Add support to handle debug info attached to an instruction. 
This is not yet enabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83400 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 18:37:31 +00:00
Dan Gohman
e3cc3f3c84 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83392 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 17:38:38 +00:00
Jeffrey Yasskin
6cf4963cdc Fix PR5112, a miscompilation on gcc-4.0.3. Patch by Collin Winter! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83391 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 17:25:50 +00:00
Chris Lattner
7963e15951 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83390 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 16:59:46 +00:00
Richard Osborne
f9416ea0cd Remove xs1b predicate since it is no longer needed to differentiate betweem 
xs1a and xs1b.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83383 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 16:17:57 +00:00
Richard Osborne
34bee6da7a Remove xs1a subtarget. xs1a is a preproduction device used in 
early development boards which is no longer supported in the
XMOS toolchain.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83381 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 16:01:09 +00:00
Richard Osborne
acfbb92824 Default to the xs1b subtarget 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83380 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 15:41:52 +00:00
Duncan Sands
ac53a0b272 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83379 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 15:40:36 +00:00
Jim Grosbach
6e214805b1 grammar 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83378 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 15:03:44 +00:00
Devang Patel
8a4087ddc7 Fix cut-n-pasto. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83367 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 03:15:38 +00:00
Devang Patel
02c04237d0 Update processDebugLoc() to handle requests to process debug info, before and after emitting instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83364 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 03:04:58 +00:00
Devang Patel
af0e272683 Update processDebugLoc() so that it can be used to process debug info before and after printing an instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83363 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 02:19:11 +00:00
Devang Patel
89703cf838 Remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83362 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 02:01:32 +00:00
Devang Patel
0d20ac8d17 Add utility routine to set begin and end labels for DbgScopes. 
This will be used by processDebugLoc().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83361 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 01:50:42 +00:00
Devang Patel
b39566d719 Remove unintentional function decl. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83356 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 01:31:35 +00:00
Devang Patel
e717faa467 Add utility routine to collect variable debug info. This is not yet used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83355 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 01:26:37 +00:00
Jeffrey Yasskin
ea5ed00ea3 Fix http://llvm.org/PR5116 by rolling back r60822. This passes `make unittests 
check-lit` on both x86-64 Linux and x86-32 Darwin.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83353 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 00:35:55 +00:00
Devang Patel
454e957979 Set default location for the function if it is not already set. 
This code is not  yet enabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83349 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 00:09:08 +00:00
Devang Patel
6f3dc920b0 Existence of a compile unit for input source file is a good indicator to check debug info's presence in a module. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83348 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 00:03:14 +00:00
Devang Patel
ffd9c3dd4a If subprogram die is not available then construct new one. 
This can happen if debug info is processed lazily.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83347 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 23:59:00 +00:00
Devang Patel
fd07cf56cd 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83344 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 23:40:42 +00:00
Devang Patel
b71a16d10d Set address while constructing DIE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83343 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 23:22:08 +00:00
Evan Phoenix
1614e50d9f Extend ConstantFolding to understand signed overflow variants 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83338 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 22:53:52 +00:00
Jim Grosbach
540b05d227 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83336 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 22:30:23 +00:00
Torok Edwin
85c005af0d 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83324 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 21:15:43 +00:00
Edward O'Callaghan
aa5c1b7f93 No newline at end of files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83318 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 18:43:19 +00:00
Devang Patel
f84548db63 Gracefully handle various scopes while recording source line info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83317 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 18:03:19 +00:00
Dan Gohman
c6f69e94fa Remove an unnnecessary LLVMContext argument in 
ConstantFoldLoadThroughGEPConstantExpr.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83311 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 16:36:26 +00:00
Dan Gohman
e41a115e6a Use Use::operator= instead of Use::set, for consistency. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83310 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 16:31:55 +00:00
Dan Gohman
01a76ce8d9 Remove explicit enum integer values. They don't appear to be needed, and 
they make it less convenient to add new entries.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83308 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 15:52:08 +00:00
Dan Gohman
21313bc62f Add RIP to GR64_NOREX. This fixed a MachineVerifier error when RIP 
is used in an operand which requires GR64_NOREX.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83307 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 15:42:08 +00:00
Chris Lattner
cf0fe8d813 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83297 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 05:54:46 +00:00
Chris Lattner
e65cd40ab9 teach the optimizer how to constant fold uadd/usub intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83295 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 05:26:04 +00:00
Chris Lattner
d0806a1519 simplify this code a bunch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83294 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 05:06:24 +00:00
Chris Lattner
68a0603dc5 code simplifications. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83292 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 05:00:35 +00:00
Chris Lattner
bbc33853a5 instcombine shouldn't delete all null checks for mallocs. 
This fixes PR5130.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83290 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 02:47:47 +00:00
Chris Lattner
92bef66c10 stop MachineFunctionPass from claiming that it preserves LoopDependence info, 
which causes dependence info to be linked into lli.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83289 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 02:35:05 +00:00
Chris Lattner
dbf75e813e 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").


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83288 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 02:29:51 +00:00
Owen Anderson
08993acada Do away with the strange use of BitVectors in SSI, and just use normal sets. This makes the code much more C++/LLVM-ish. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83286 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-04 18:49:55 +00:00
Jakob Stoklund Olesen
b44fad7f95 Whitespace and formatting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83285 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-04 18:18:39 +00:00
Owen Anderson
216abab84f Fix a typo in the comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83283 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-04 17:52:13 +00:00
Owen Anderson
7aa3c781b4 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83282 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-04 17:47:39 +00:00
Evan Cheng
a0479e5332 Allow -inline-threshold override default threshold even if compiling to optimize for size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83274 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-04 06:13:54 +00:00
Nick Lewycky
b13105fbf6 Requires element types in a constant initializer to match the element types of 
of the constant. This reverts r6544 and r7428.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83270 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-03 19:30:43 +00:00
Bob Wilson
916ac5b069 Add a comment to describe letters used in multiclass name suffixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83257 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-03 04:44:16 +00:00
Bob Wilson
8f07b9e8a9 Fix encoding problem for VMLS instruction. 
Thanks to Johnny Chen for pointing this out!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83256 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-03 04:41:21 +00:00
Lang Hames
6cc91e39c0 Oops. Renamed remaining MachineInstrIndex references. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83255 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-03 04:31:31 +00:00
Lang Hames
cc3b0650f1 Renamed MachineInstrIndex to LiveIndex. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83254 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-03 04:21:37 +00:00
Benjamin Kramer
7d26948662 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!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83251 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-02 19:36:31 +00:00
Benjamin Kramer
8bff4af612 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83249 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-02 15:59:52 +00:00
Evan Cheng
048e36f536 getFunctionAlignment should return log2 alignment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83242 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-02 06:57:25 +00:00
Evan Cheng
892597943a Forgot about ARM::tPUSH. It also has a new writeback operand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83237 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-02 05:03:07 +00:00
Evan Cheng
62a1b5db44 Move load / store multiple before post-alloc scheduling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83236 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-02 04:57:15 +00:00
David Goodwin
63bcbb72f7 All callee-saved registers are live-out of a return block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83223 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-01 23:28:47 +00:00
David Goodwin
9843a93e83 Remove neonfp attribute and instead set default based on CPU string. Add -arm-use-neon-fp to override the default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83218 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-01 22:19:57 +00:00
Mike Stump
e4250396ea Expand api out in the usual inserter way, though, I do have a 
question, can we get rid of the BasicBlock versions of all inserters
and use Head == 0 to indicate the old case when GetInsertBlock == 0?


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83216 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-01 22:08:58 +00:00
David Goodwin
471850ab84 Restore the -post-RA-scheduler flag as an override for the target specification. Remove -mattr for setting PostRAScheduler enable and instead use CPU string. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83215 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-01 21:46:35 +00:00
Evan Cheng
10469f8e48 ARM::tPOP and tPOP_RET each has an extra writeback operand now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83214 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-01 20:54:53 +00:00
Devang Patel
af9e84701b Add support to extract lexical scope information from DebugLoc attached with an machine instruction. 
This is not yet enabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83210 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-01 20:31:14 +00:00
David Goodwin
c7951f8e09 Use MachineFrameInfo.getPristineRegs() to determine which callee-saved registers are available for anti-dependency breaking. Some cleanup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83208 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-01 19:45:32 +00:00
Devang Patel
d38dd11e12 Record first and last instruction of a scope in DbgScope. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83207 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-01 18:25:23 +00:00
Evan Cheng
714e8bc1fc Observe hasExtraSrcRegAllocReq and hasExtraDefRegAllocReq. Do not change 
operands of instructions with these properties while breaking anti-dep.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83198 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-01 08:26:23 +00:00
Evan Cheng
0d92f5f768 Add hasExtraSrcRegAllocReq and hasExtraDefRegAllocReq flags to ld / st multiple, 
ld / st pairs, etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83197 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-01 08:22:27 +00:00
Douglas Gregor
8f3ec31133 Remove GVNPRE.cpp from the CMake makefile 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83194 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-01 05:30:05 +00:00
Chris Lattner
99be299edb remove the GVNPRE pass. It has been subsumed by the GVN pass. 
Ok'd by Owen.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83193 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-01 02:18:36 +00:00
Evan Cheng
7c043d7319 Update ARM JIT emitter to account for ld/st multiple changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83192 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-01 01:39:21 +00:00
Evan Cheng
d20d658675 Change ld/st multiples to explicitly model the writeback to base register. This fixes most of the -ldstopti-before-sched2 regressions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83191 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-01 01:33:39 +00:00
Devang Patel
a1434045c3 Add another MDNode into DebugLocTuple. This will be used to keep track of inlined functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83190 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-01 01:15:28 +00:00
Devang Patel
75549f4444 If location info is attached with an instruction then keep track of alloca slots used by a variable. This info will be used by AsmPrinter to emit debug info for variables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83189 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-01 01:03:26 +00:00
Devang Patel
b0fdedb3fd Use MachineInstr as an processDebugLoc() argument. 
This will allow processDebugLoc() to handle scopes for DWARF debug info. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83183 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 23:12:50 +00:00
Devang Patel
3d910835fc Use MDNode * directly as an RecordSourceLine() argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83182 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 22:51:28 +00:00
Devang Patel
a63710124a Remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83181 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 22:43:52 +00:00
Devang Patel
ecbeb1a490 Add isFOO() helpers. Fix getDirectory() and getFilename() for DIScope. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83180 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 22:34:41 +00:00
Bob Wilson
29e066965f Use OutStreamer.SwitchSection instead of writing out textual section directives. 
Add a new TargetLoweringObjectFileMachO::getConstTextCoalSection method to
get access to that section.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83178 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 22:25:37 +00:00
Bob Wilson
812209a58c Add a new virtual EmitStartOfAsmFile method to the AsmPrinter and use this 
to emit target-specific things at the beginning of the asm output.  This
fixes a problem for PPC, where the text sections are not being kept together
as expected.  The base class doInitialization code calls DW->BeginModule()
which emits a bunch of DWARF section directives.  The PPC doInitialization
code then emits all the TEXT section directives, with the intention that they
will be kept together. But as I understand it, the Darwin assembler treats
the default TEXT section as a special case and moves it to the beginning of
the file, which means that all those DWARF sections are in the middle of
the text.  With this change, the EmitStartOfAsmFile hook is called before
the DWARF section directives are emitted, so that all the PPC text section
directives come out right at the beginning of the file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83176 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 22:06:26 +00:00
Bob Wilson
c4c39faa05 Fix a comment typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83174 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 21:44:42 +00:00
Devang Patel
4d7a2061f1 Check for null MDNode element while printing comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83172 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 21:26:51 +00:00
Bob Wilson
bc9506f5ee Fix a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83171 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 21:26:13 +00:00
Bob Wilson
b6e4742da7 The AsmPrinter base class contains a DwarfWriter member, so there's no need 
for derived AsmPrinters to add another one.  In some cases, fixing this
removes the need to override the doInitialization method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83170 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 21:24:45 +00:00
Jeffrey Yasskin
1fb613c43d Assert that ConstantArrays are created with correctly-typed elements. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83168 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 21:08:08 +00:00
Dan Gohman
5184635eda Fix this code so that it doesn't try to iterate through a std::vector 
while calling changeImmediateDominator, which removes elements from the
vector. This fixes PR5097.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83166 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 20:54:16 +00:00
Reid Kleckner
3a90c9b8ed Silence comparison always false warning in -Asserts mode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83164 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 20:43:07 +00:00
Jim Grosbach
32030fe021 Add additional assert() to verify no extraneous use of a scavenged register. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83163 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 20:35:36 +00:00
Devang Patel
2d5988d9ba Print tag name for MDNodes that are used to encode debug info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83160 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 20:16:54 +00:00
Reid Kleckner
c277ab08a2 Fix integer overflow in instruction scheduling. This can happen if we have 
basic blocks that are so long that their size overflows a short.

Also assert that overflow does not happen in the future, as requested by Evan.

This fixes PR4401.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83159 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 20:15:38 +00:00
Jim Grosbach
460c482ed3 Clarify comment phrasing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83148 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 15:23:38 +00:00
Evan Cheng
792e1f6df9 Add a option which would move ld/st multiple pass before post-alloc scheduling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83145 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 08:53:01 +00:00
Evan Cheng
629adde699 Add a target hook to add pre- post-regalloc scheduling passes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83144 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 08:49:50 +00:00
Nick Lewycky
483041e9ea Fix compile error as debug interface changed. 
By the way, this code is buggy. You can't keep a map<MDNode *, something>
because the MDNode may be destroyed and reused for something else.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83141 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 04:50:26 +00:00
Jim Grosbach
366e021fb2 replace TRI->isVirtualRegister() with TargetRegisterInfo::isVirtualRegister() 
per customary usage

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83137 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 01:47:59 +00:00
Jim Grosbach
d1a5ca6cb1 When checking whether we need to reserve a register for the scavenger, 
the size of the saved frame pointer needs to be taken into account.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83136 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 01:43:29 +00:00
Jim Grosbach
c732adf3a1 Add "isBarrier = 1" to return instructions. 
Patch by Sylvere Teissier.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83135 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 01:35:11 +00:00
Jim Grosbach
0a13e566ab fix compiler warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83132 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 00:37:40 +00:00
Bob Wilson
0fb34683b9 For Darwin, emit all the text section directives together before the dwarf 
section directives.  This causes the assembler to put the text sections at
the beginning of the object file, which helps work around a limitation of the
Darwin ARM relocations.  Radar 7255355.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83127 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 00:23:42 +00:00
Devang Patel
fdc826f6e8 Simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83123 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 00:14:40 +00:00
David Goodwin
0dad89fa94 Remove -post-RA-schedule flag and add a TargetSubtarget method to enable post-register-allocation scheduling. By default it is off. For ARM, enable/disable with -mattr=+/-postrasched. Enable by default for cortex-a8. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83122 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 00:10:16 +00:00
Mike Stump
3e4c9bdb67 Add a way for a frontend to generate more complex dwarf location 
information.  This allows arbitrary code involving DW_OP_plus_uconst
and DW_OP_deref.  The scheme allows for easy extention to include,
any, or all of the DW_OP_ opcodes.  I thought about just exposing all
of them, but, wasn't sure if people wanted the dwarf opcodes exposed
in the api.  Is that a layering violation?

With this scheme, the entire existing block scheme used by llvm-gcc
can be switched over to the new scheme.  I think that would be
cleaner, as then the compiler specific bits are not present in llvm
proper.  Before the old code can be yanked however, similar code in
clang would have to be removed.

Next up, more testing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83120 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 00:08:22 +00:00
Jim Grosbach
17487ba60d minor cleanup and add clarifying comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83117 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-29 23:17:20 +00:00
Devang Patel
11716d766b Lookup handler name only when assertions are enabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83114 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-29 22:05:52 +00:00
Devang Patel
74da40a96f Add removeMD(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83107 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-29 20:42:25 +00:00
Devang Patel
58a230a491 Only one custom meadata of each kind can be attached with an instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83105 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-29 20:30:57 +00:00
Jim Grosbach
a9a9c95f67 Additional check for regno==0 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83103 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-29 20:11:10 +00:00
Devang Patel
1d957e4d0d Use assertion instead of early exit to catch malformed custom metadata store. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83102 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-29 20:01:19 +00:00
Devang Patel
9dddf97480 Remove unnecessary cast. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83100 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-29 19:56:13 +00:00
Devang Patel
5ccdd10b1a Remove std::string uses from DebugInfo interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83083 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-29 18:40:58 +00:00
Jim Grosbach
9a0b6e6ded Simplify the tracking of virtual frame index registers. Ranges cannot overlap, 
so a simple "current register" will suffice. Also add some additional
sanity-checking assertions to make sure things are as we expect.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83081 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-29 18:23:15 +00:00
Jim Grosbach
9ab2238df9 Moving register scavenging to a post pass results in virtual registers in 
the instruction we're scavenging for. The scavenger needs to know to avoid
them when analyzing register usage.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83077 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-29 17:24:37 +00:00
Evan Cheng
fa1be5d991 Fix PR4687. Pre ARMv5te does not support ldrd / strd. Patch by John Tytgat. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83058 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-29 07:07:30 +00:00
Devang Patel
0475c9170e Parse custom metadata attached with an instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83033 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-29 00:01:14 +00:00
Jim Grosbach
ec9eef4a15 Adjust processFunctionBeforeCalleeSavedScan() to correctly reserve a stack 
slot for the register scavenger when compiling Thumb1 functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83023 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 22:08:06 +00:00
Dan Gohman
d0c5a292aa Add C API calls for building FNeg operations. Patch by KS Sreeram! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83021 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 21:51:41 +00:00
Devang Patel
e30e678865 s/class Metadata/class MetadataContext/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83019 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 21:41:20 +00:00
Devang Patel
a2148402ce Do not use global typedef for MDKindID. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83016 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 21:14:55 +00:00
Dan Gohman
f3f1be6f06 When extending the operands of an addrec, iterate through all 
the operands, rather than trying to partition them into a start
and a step. This handles non-affine add recurrences correctly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83011 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 21:01:47 +00:00
Devang Patel
18f0c263e6 Do not hardcode metadata names. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83010 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 20:56:00 +00:00
Evan Cheng
fd847118ed Fix Thumb2 IT block pass bug. t2MOVi32imm may not be the start of a IT block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83008 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 20:47:15 +00:00
Jakob Stoklund Olesen
544df3651e Use KILL instead of IMPLICIT_DEF in LowerSubregs pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83007 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 20:32:46 +00:00
Jakob Stoklund Olesen
26207e5bf1 Introduce the TargetInstrInfo::KILL machine instruction and get rid of the 
unused DECLARE instruction.

KILL is not yet used anywhere, it will replace TargetInstrInfo::IMPLICIT_DEF
in the places where IMPLICIT_DEF is just used to alter liveness of physical
registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83006 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 20:32:26 +00:00
Dan Gohman
23aefe5e92 Create a README.txt for lib/Analysis, and add an entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83001 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 18:38:53 +00:00
Devang Patel
3168b79c1c Remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82999 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 18:31:56 +00:00
Dan Gohman
937d2d8624 Use VerifySchedule instead of doing the work manually. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82995 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 16:09:41 +00:00
Dan Gohman
322b95cd5f Fix this debug output to handle the case where the loop has been deleted. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82994 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 15:40:01 +00:00
Dan Gohman
6d594a9d76 Include the name of the loop header in debug messages. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82993 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 15:07:18 +00:00
Dan Gohman
2d5dfd94e5 Remove a redundant #ifndef and add an assertion string. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82991 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 14:38:19 +00:00
Dan Gohman
d84db11333 Convert LoopSimplify and LoopExtractor from FunctionPass to LoopPass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82990 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 14:37:51 +00:00
Bob Wilson
522ce97532 Pass the optimization level when constructing the ARM instruction selector. 
Otherwise, it is always set to "default", which prevents debug info from
even being generated during isel.  Radar 7250345.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82988 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 14:30:20 +00:00
Evan Cheng
5adb66a646 Make ARM and Thumb2 32-bit immediate materialization into a single 32-bit pseudo 
instruction. This makes it re-materializable.

Thumb2 will split it back out into two instructions so IT pass will generate the
right mask. Also, this expose opportunies to optimize the movw to a 16-bit move.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82982 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 09:14:39 +00:00
Anton Korobeynikov
b0d8d78138 Fix thinko in my recent movt commit: it's not safe to remat movt, since it has input reg argument. 
Disable rematting of it for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82975 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 07:26:46 +00:00
Chris Lattner
3ddfb21306 The select instruction is not neccesarily in the same block as the 
phi nodes.  Make sure to phi translate from the right block. 

This fixes a llvm-building-llvm failure on GVN-PRE.cpp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82970 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 06:49:44 +00:00
Evan Cheng
0e6b590b91 Coalescer should not delete extract_subreg, insert_subreg, and subreg_to_reg of 
physical registers. This is especially critical for the later two since they
start the live interval of a super-register. e.g.
%DO<def> = INSERT_SUBREG %D0<undef>, %S0<kill>, 1
If this instruction is eliminated, the register scavenger will not be happy as
D0 is not defined previously.
This fixes PR5055.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82968 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 05:28:43 +00:00
Dan Gohman
a9245d63f6 Remove temporary debugging hack. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82953 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 00:44:15 +00:00
Dan Gohman
9450b0e1a6 Move the dominator verification code out of special code embedded within 
the PassManager code into a regular verifyAnalysis method.

Also, reorganize loop verification. Make the LoopPass infrastructure
call verifyLoop as needed instead of having LoopInfo::verifyAnalysis
check every loop in the function after each looop pass. Add a new
command-line argument, -verify-loop-info, to enable the expensive
full checking.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82952 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 00:27:48 +00:00
Dan Gohman
f3f0c89f5f Move this assert to check the condition as soon as it is known. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82951 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 00:10:28 +00:00
Dan Gohman
5c12adaa8b Extend the StartPassTimer and StopPassTimer functions so that the 
code that stops the timer doesn't have to search to find the timer
object before it stops the timer. This avoids a lock acquisition
and a few other things done with the timer running.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82949 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 00:07:05 +00:00
Anton Korobeynikov
6a2fa325c1 Use movt/movw pair to materialize 32 bit constants on ARMv6T2+. 
This should be better than single load from constpool.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82948 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 23:52:58 +00:00
Dan Gohman
1edaef62a4 Fix an old copy+pasto. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82947 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 23:52:07 +00:00
Dan Gohman
3069b3193d Extract the code for inserting a loop into the loop queue into 
a separate function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82946 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 23:49:43 +00:00