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Author SHA1 Message Date
Owen Anderson
e1aa33f2a2 Merge 2010-08-31-InfiniteRecursion.ll into crash.ll. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112635 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 20:27:17 +00:00
Owen Anderson
0eb355ab6b More cleanups of my JumpThreading transforms, including extracting some duplicated code into a helper function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112634 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 20:26:04 +00:00
Jakob Stoklund Olesen
9d4b51b696 Ignore unallocatable registers in RegAllocFast. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112632 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 19:54:25 +00:00
Devang Patel
81b79b5fa8 Revert r112623. It is causing self host build failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112631 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 19:41:03 +00:00
Duncan Sands
f727748684 Update the Ada instructions to LLVM 2.7 (from LLVM 2.5). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112630 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 19:40:21 +00:00
Owen Anderson
9ba353627a Add an RAII helper to make cleanup of the RecursionSet more fool-proof. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112628 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 19:24:27 +00:00
Owen Anderson
869a144f4e Only try to clean up the current block if we changed that block already. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112625 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 18:55:52 +00:00
Jim Grosbach
c1dc78de76 SP relative offsets need to be adjusted by the local allocation size when 
determining if they're likely to be in range of the SP when resolving
frame references.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112624 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 18:52:31 +00:00
Devang Patel
8480c2e314 Remember byval argument's frame index during argument lowering and use this info to emit debug info. 
Fixes Radar 8367011.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112623 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 18:50:09 +00:00
Jim Grosbach
d4511e947e this assert should just be a condition, since this function is just asking if 
the offset is legally encodable, not actually trying to do the encoding.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112622 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 18:49:31 +00:00
Owen Anderson
b95df124b2 Add a test for the duplicated-conditional situation illutrated by PR5652. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112621 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 18:49:12 +00:00
Owen Anderson
c1bdac66ff Refactor my fix for PR5652 to terminate the predecessor lookups after the first failure. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112620 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 18:48:48 +00:00
Chris Lattner
0676984117 merge two tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112617 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 18:44:03 +00:00
Owen Anderson
047f4f5c91 Manually reduce this testcase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112615 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 18:16:29 +00:00
Chris Lattner
f88776c363 merge two tests and convert to filecheck. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112613 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 18:05:08 +00:00
Owen Anderson
421cc4c999 Add a micro-test for the transforms I added to JumpThreading. 
I have not been able to find a way to test each in isolation, for a few reasons:
1) The ability to look-through non-i1 BinaryOperator's requires the ability to look through non-constant
   ICmps in order for it to ever trigger.
2) The ability to do LVI-powered PHI value determination only matters in cases that ProcessBranchOnPHI
   can't handle.  Since it already handles all the cases without other instructions in the def-use chain
   between the PHI and the branch, it requires the ability to look through ICmps and/or BinaryOperators
   as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112611 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 17:59:07 +00:00
Jim Grosbach
85e75afc8e Update test for 112609 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112610 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 17:58:47 +00:00
Jim Grosbach
864d22ea72 Improve virtual frame base register allocation heuristics. 
1. Allocate them in the entry block of the function to enable function-wide
     re-use. The instructions to create them should be re-materializable, so
     there shouldn't be additional cost compared to creating them local
     to the basic blocks where they are used.
  2. Collect all of the frame index references for the function and sort them
     by the local offset referenced. Iterate over the sorted list to
     allocate the virtual base registers. This enables creation of base
     registers optimized for positive-offset access of frame references.
     (Note: This may be appropriate to later be a target hook to do the
     sorting in a target appropriate manner. For now it's done here for
     simplicity.)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112609 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 17:58:19 +00:00
Dan Gohman
f3bba4c1ae Speculatively revert r112433. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112608 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 17:56:47 +00:00
Benjamin Kramer
19dc7faf25 Allow creation of SHT_NULL sections, from Roman Divacky. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112605 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 17:03:33 +00:00
Duncan Sands
22efc18f12 Stop using the dom frontier in DwarfEHPrepare by not promoting alloca's 
any more.  I plan to reimplement alloca promotion using SSAUpdater later.
It looks like Bill's URoR logic really always needs domtree, so the pass
now always asks for domtree info.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112597 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 09:05:06 +00:00
Nick Lewycky
65a0af3855 Fix an infinite loop; merging two functions will create a new function (if the 
two are weak, we make them thunks to a new strong function) so don't iterate
through the function list as we're modifying it.

Also add back the outermost loop which got removed during the cleanups.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112595 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 08:29:37 +00:00
Owen Anderson
7c37f6d2d9 Don't perform an extra traversal of the function just to do cleanup. We can safely simplify instructions after each block has been processed without worrying about iterator invalidation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112594 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 07:55:56 +00:00
Bill Wendling
da2ae63206 - Cleanup some whitespaces. 
- Convert {0,1} and friends into 0b01, which is identical and more consistent.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112593 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 07:50:46 +00:00
Owen Anderson
8320006473 Rename test directory to reflect new pass name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112592 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 07:50:31 +00:00
Owen Anderson
25e9405272 Rename ValuePropagation to a more descriptive CorrelatedValuePropagation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112591 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 07:48:34 +00:00
Owen Anderson
7aff1cd038 Rename file to something more descriptive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112590 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 07:41:39 +00:00
Owen Anderson
cb21190cbd More Chris-inspired JumpThreading fixes: use ConstantExpr to correctly constant-fold undef, and be more careful with its return value. 
This actually exposed an infinite recursion bug in ComputeValueKnownInPredecessors which theoretically already existed (in JumpThreading's
handling of and/or of i1's), but never manifested before.  This patch adds a tracking set to prevent this case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112589 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 07:36:34 +00:00
Michael J. Spencer
4a295d301d Cleanup Whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112587 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 06:36:46 +00:00
Michael J. Spencer
1211d43abf System: Fix getMagicNumber on windows. 
getMagicNumber was treating the _binary_ data it read in as a
null terminated string. This resulted in the std::string
calculating the length, and causing an assert in other code that
assumed that the length it passed was the same as the length of
the string it would get back.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112586 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 06:36:33 +00:00
Michael J. Spencer
a805b2ded8 Fix spelling/typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112585 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 06:36:22 +00:00
Devang Patel
34ca5ed797 Offset is not always unsigned number. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112584 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 06:12:08 +00:00
Devang Patel
9e3bd2c476 Simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112583 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 06:11:28 +00:00
Nick Lewycky
f53de86cba Switch to DenseSet, simplifying much more code. We now have a single iteration 
where we hash, compare and fold, instead of one iteration where we build up
the hash buckets and a second one to fold.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112582 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 05:53:05 +00:00
Owen Anderson
c97fb52799 Remove r111665, which implemented store-narrowing in InstCombine. Chris discovered a miscompilation in it, and it's not easily 
fixable at the optimizer level. I'll investigate reimplementing it in DAGCombine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112575 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 04:41:06 +00:00
Bruno Cardoso Lopes
2e46e78c53 zap unused method. x86 is the only user and already has a more powerfull version 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112571 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 02:36:20 +00:00
Bruno Cardoso Lopes
20a07f422d Use X86ISD::MOVSS and MOVSD to represent the movl mask pattern, also fix the handling of those nodes when seeking for scalars inside vector shuffles 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112570 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 02:26:40 +00:00
Eric Christopher
dc90804a40 Rewrite slightly so we can expand for floating point types easier. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112568 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 01:28:42 +00:00
Jakob Stoklund Olesen
e49e6a852b Add experimental -disable-physical-join command line option. 
Eventually, we want to disable physreg coalescing completely, and let the
register allocator do its job using hints.

This option makes it possible to measure the impact of disabling physreg
coalescing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112567 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 01:27:49 +00:00
Owen Anderson
49998ce46a Fix a typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112560 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-30 23:59:30 +00:00
Eric Christopher
548d1bb97e If we have an unhandled type then assert, we shouldn't get here for 
things we can't handle.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112559 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-30 23:48:26 +00:00
Dan Gohman
39429e2b51 Update the descriptions of NoModRef and ModRef to be consistent 
with the descriptions of Mod and Ref.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112557 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-30 23:47:24 +00:00
Anton Korobeynikov
5c1919e55d Fix borken test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112555 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-30 23:41:49 +00:00
Owen Anderson
985185ea75 Combine these two tests, and make sure there's a newline at the end of the file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112554 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-30 23:37:41 +00:00
Owen Anderson
a081d15b84 Cleanups suggested by Chris. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112553 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-30 23:34:17 +00:00
Owen Anderson
327ca7bec2 Re-apply r112539, being more careful to respect the return values of the constant folding methods. Additionally, 
use the ConstantExpr::get*() methods to simplify some constant folding.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112550 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-30 23:22:36 +00:00
Anton Korobeynikov
6d1e29d2f2 Expand MOVi32imm in ARM mode after regalloc. This provides 
scheduling opportunities (extra instruction can go in between
MOVT / MOVW pair removing the stall).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112546 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-30 22:50:36 +00:00
Owen Anderson
f523b3e087 Add statistics to evaluate this pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112545 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-30 22:45:55 +00:00
Owen Anderson
d930f205db Revert r112539. It accidentally introduced a miscompilation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112543 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-30 22:33:41 +00:00
Owen Anderson
1e35610f20 Fixes and cleanups pointed out by Chris. In general, be careful to handle 0 results from ComputeValueKnownInPredecessors 
(indicating undef), and re-use existing constant folding APIs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112539 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-30 22:07:52 +00:00