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10353 Commits

Author SHA1 Message Date
Dan Gohman
a4f4d699ec DAGCombine (shl (anyext x, c)) to (anyext (shl x, c)) if the high bits 
are not demanded. This often allows the anyext to be folded away.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109242 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-23 18:03:30 +00:00
Dan Gohman
7c98283f0e Make SDNode::dump() print a newline at the end. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109234 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-23 16:37:47 +00:00
Eric Christopher
54e1791e4b 80-col. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109205 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-23 01:05:59 +00:00
Chris Lattner
134d8eec87 remove the JIT "NeedsExactSize" feature and supporting logic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109167 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-22 21:17:55 +00:00
Gabor Greif
481c4c0734 keep in 80 cols 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109122 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-22 17:18:03 +00:00
Gabor Greif
96f1d8ebdd mass elimination of reliance on automatic iterator dereferencing 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109103 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-22 13:36:47 +00:00
Gabor Greif
a399781289 undo 80 column trespassing I caused 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109092 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-22 10:37:47 +00:00
Evan Cheng
89ba74d117 Re-apply r109079 with fix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109083 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-22 06:24:48 +00:00
Owen Anderson
8b9177aee2 Revert r109079, which broke a lot of CodeGen tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109082 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-22 06:01:28 +00:00
Reid Kleckner
c96a82a534 Initial modifications to MCAssembler and TargetMachine for the MCJIT. 
Patch by Olivier Meurant!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109080 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-22 05:58:53 +00:00
Evan Cheng
a4081238aa Initialize RegLimit only when register pressure is being tracked. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109079 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-22 05:18:41 +00:00
Evan Cheng
4a863e2c75 More register pressure aware scheduling work. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109064 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-21 23:53:58 +00:00
Jim Grosbach
917290043f For ARM/Darwin, add a dwarf entry indicating whether a function is arm or thumb 
rdar://8202967

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109057 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-21 23:03:52 +00:00
Owen Anderson
d13db2c59c Fix batch of converting RegisterPass<> to INTIALIZE_PASS(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109045 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-21 22:09:45 +00:00
Jim Grosbach
1e20b96313 80 column and trailing whitespace cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109037 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-21 21:21:52 +00:00
Dan Gohman
872814ae04 Disallow null as a named metadata operand. 
Make MDNode::destroy private.
Fix the one thing that used MDNode::destroy, outside of MDNode itself.

One should never delete or destroy an MDNode explicitly. MDNodes
implicitly go away when there are no references to them (implementation
details aside).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109028 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-21 18:54:18 +00:00
Lang Hames
5a8ea65c5c Changed OStream templates to functions on raw_ostream, removed the unused "renderWarnings" function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109003 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-21 09:02:06 +00:00
Evan Cheng
4f6b4674be Teach bottom up pre-ra scheduler to track register pressure. Work in progress. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108991 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-21 06:09:07 +00:00
Jakob Stoklund Olesen
f2c6e367c1 Change the createSpiller interface to take a MachineFunctionPass argument. 
The spillers can pluck the analyses they need from the pass reference.

Switch some never-null pointers to references.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108969 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-20 23:50:15 +00:00
Jakob Stoklund Olesen
6a0dc079ef Implement loop splitting analysis. 
Determine which loop exit blocks need a 'pre-exit' block inserted.
Recognize when this would be impossible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108941 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-20 21:46:58 +00:00
Dale Johannesen
21d35c1399 Fix test for switch statements and increase 
threshold a bit per experimentation.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108935 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-20 21:29:12 +00:00
Jakob Stoklund Olesen
abff28087f Appease the colonials. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108845 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-20 16:12:37 +00:00
Jakob Stoklund Olesen
8ae0263471 Beginning SplitKit - utility classes for live range splitting. 
This is a work in progress. So far we have some basic loop analysis to help
determine where it is useful to split a live range around a loop.

The actual loop splitting code from Splitter.cpp is also going to move in here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108842 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-20 15:41:07 +00:00
Lang Hames
6089e464dd Updated css classes for the pressure table legend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108839 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-20 14:35:55 +00:00
Lang Hames
2725abd039 Oops - I tables render poorly in Chrome without this explicit height specification. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108824 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-20 10:29:46 +00:00
Lang Hames
f80f31eb9f Use run-length encoding to represent identical adjacent cells in the pressure 
and interval table. Reduces output HTML file sizes by ~80% in my test cases.

Also fix access of private member type by << operator.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108823 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-20 10:18:54 +00:00
Lang Hames
245581b1ac Added support for turning HTML indentation on and off (indentation off by default). 
Reduces output file size ~20% on my test cases.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108822 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-20 09:13:29 +00:00
Lang Hames
c4bcc778a8 Switched to rendering after allocation (but before rewriting) in PBQP. 
Updated renderer to use allocation information from VirtRegMap (if
available) to render spilled intervals differently.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108815 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-20 07:41:44 +00:00
Dale Johannesen
bf1ae5e254 Don't hoist things out of a large switch inside a 
loop, for the reasons in the comments.  This is a
major win on 253.perlbmk on ARM Darwin.  I expect it
to be a good heuristic in general, but it's possible
some things will regress; I'll be watching.
7940152.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108792 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-20 00:50:13 +00:00
Stuart Hastings
0db4271069 Correct line info for declarations/definitions. Radar 8063111. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108784 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-19 23:56:30 +00:00
Devang Patel
58b8176ed3 Fix memory leak reported by valgrind. 
Do not visit operands of old instruction. Visit all operands of new instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108767 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-19 23:25:39 +00:00
Dan Gohman
c6e59b71f5 After a custom inserter, in a block which has constant instructions, 
update the current basic block in addition to the current insert
position, so that they remain consistent. This fixes rdar://8204072.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108765 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-19 22:48:56 +00:00
Evan Cheng
d70f57b254 ARM has to provide its own TargetLowering::findRepresentativeClass because its scalar floating point registers alias its vector registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108761 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-19 22:15:08 +00:00
Evan Cheng
46dcb57e18 Teach computeRegisterProperties() to compute "representative" register class for legal value types. A "representative" register class is the largest legal super-reg register class for a value type. e.g. On i386, GR32 is the rep register class for i8 / i16 / i32; on x86_64 it would be GR64. 
This property will be used by the register pressure tracking instruction scheduler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108735 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-19 18:47:01 +00:00
Jakob Stoklund Olesen
9529a1c3dd Spillers may alter MachineLoopInfo when breaking critical edges, so make it 
non-const.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108734 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-19 18:41:20 +00:00
Devang Patel
8b3a6b651e Fix PR 7662. 
Do not try to insert local variable info to a DIE used for function declaration.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108731 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-19 17:53:55 +00:00
Benjamin Kramer
5907f4c385 Update CMake build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108700 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-19 15:37:03 +00:00
Lang Hames
54cc2efb4e Render MachineFunctions to HTML pages, with options to render register 
pressure estimates and liveness alongside.

Still experimental.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108698 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-19 15:22:28 +00:00
Owen Anderson
54026c0f1b Remove r108639 now that it is handled by InstCombine instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108688 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-19 08:10:24 +00:00
Daniel Dunbar
d73ada7d24 Target: Give the TargetAsmParser access to the TargetMachine. 
- Unfortunate, but necessary for now to handle subtarget instruction matching. Eventually we should factor out the lower level target machine information so we don't need to do this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108664 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-19 00:33:49 +00:00
Daniel Dunbar
9fbb37e10d MC: Move several clients to using AsmParser constructor function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108645 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-18 18:31:33 +00:00
Douglas Gregor
806de357a5 Fix struct/class mismatch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108642 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-18 11:47:56 +00:00
Owen Anderson
3ecdfafe3b Add a DAGCombine xform to fold away redundant float->double->float conversions around sqrt instructions. 
I am assured by people more knowledgeable than me that there are no rounding issues in eliminating this.

This fixed <rdar://problem/8197504>.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108639 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-18 08:47:54 +00:00
Lang Hames
12f35c52a5 Added -pbqp-pre-coalescing flag to PBQP. If enabled this will cause PBQP to require 
LoopSplitter be run prior to register allocation.

Entirely for testing purposes at the moment.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108634 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-18 00:57:59 +00:00
Bill Wendling
7490896f9d Use isPrologLabel() instead of checking the opcode directly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108628 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-17 19:18:44 +00:00
Zhongxing Xu
d3bb335144 update CMakeLists.txt 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108620 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-17 12:12:42 +00:00
Lang Hames
3b6702db0c Removed unused inRange variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108618 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-17 11:43:07 +00:00
Lang Hames
60f422f894 LoopSplitter - intended to split live intervals over loop boundaries. 
Still very much under development. Comments and fixes will be forthcoming.

(This commit includes some small tweaks to LiveIntervals & LoopInfo to support the splitter)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108615 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-17 07:34:01 +00:00
Lang Hames
d0f6f01731 Iterating over sets of pointers in a heuristic was a bad idea. Switching 
any command line paramater changed the register allocation produced by
PBQP.

Turns out variety is not the spice of life.

Fixed some comparators, added others. All good now.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108613 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-17 06:31:41 +00:00
Eric Christopher
2b8271e029 Propagate alloca alignment information via variable size object frame 
information.

No functional change yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108583 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-17 00:28:22 +00:00