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Author SHA1 Message Date
Evan Cheng
2824a65550 Fix PR3391 and PR3864. Reg allocator infinite looping. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67544 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-23 18:24:37 +00:00
Dan Gohman
8cccf0ef0c Don't set SUnit::hasPhysRegDefs to true unless the defs are 
actually have uses, which reflects the way it's used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67540 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-23 17:39:36 +00:00
Dan Gohman
a5c8ae233e Fix canClobberPhysRegDefs to check all SDNodes grouped together 
in an SUnit, instead of just the first one. This fix is needed
by some upcoming scheduler changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67531 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-23 16:23:01 +00:00
Dan Gohman
3974667c1a Add a new bit to SUnit to record whether a node has implicit physreg 
defs, regardless of whether they are actually used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67528 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-23 16:10:52 +00:00
Dan Gohman
f871ccb853 Now that errs() is properly non-buffered, there's no need to 
explicitly flush it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67526 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-23 15:57:19 +00:00
Dan Gohman
f49f0cdb48 Clarify a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67525 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-23 15:54:02 +00:00
Dan Gohman
2ba682c7e2 LoopVR is not CFGOnly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67524 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-23 15:50:52 +00:00
Dan Gohman
a9d71e1319 Enhance LiveValues to work on PHI operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67523 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-23 15:49:37 +00:00
Dan Gohman
b45088cd96 Make getOperandNumForIncomingValue and getOperandNumForIncomingBlock 
static member functions, and add getIncomingValueNumForOperand
and getIncomingBlockNumForOperand, which are the respective
inverses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67522 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-23 15:48:29 +00:00
Dan Gohman
2004eb6272 Correct some comments. Operand numbers start at 0. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67518 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-23 15:40:10 +00:00
Evan Cheng
fb11288109 Model inline asm constraint which ties an input to an output register as machine operand TIED_TO constraint. This eliminated the need to pre-allocate registers for these. This also allows register allocator can eliminate the unneeded copies. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67512 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-23 08:01:15 +00:00
Evan Cheng
7d6d4b360f Do not fold away subreg_to_reg if the source register has a sub-register index. That means the source register is taking a sub-register of a larger register. e.g. On x86 
%RAX<def> = ...
%RAX<def> = SUBREG_TO_REG 0, %EAX:3<kill>, 3
The first def is defining RAX, not EAX so the top bits were not zero-extended.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67511 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-23 07:19:58 +00:00
Chris Lattner
a8bd27ff66 fix a bug Alexei Svitkine pointed out. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67510 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-23 06:46:20 +00:00
Chris Lattner
eab5cb3b55 When we restore signal handlers, restore them back to what they 
were when we came around, not to their default handler.  This 
should fix PR3848


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67509 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-23 05:55:36 +00:00
Chris Lattner
1c4d8a00ab factorize signal registration, part of PR3848. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67508 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-23 05:42:29 +00:00
Dan Gohman
3aff0a63f9 Fix a grammaro in a comment that Bill noticed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67507 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-23 05:02:44 +00:00
Chris Lattner
640e7c6d07 tt'ify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67505 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-23 04:53:34 +00:00
Chris Lattner
4bd3d7e17c VC++ 6.0 is not future work :) 
Do not recommend llvm::OStream anymore.  Use raw_ostream or MemoryBuffer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67504 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-23 04:52:53 +00:00
Dan Gohman
82f84159e0 Add comments explaining why there's only one register for 
i8 return values.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67502 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-23 04:28:24 +00:00
Evan Cheng
a38ff646bc Missed this as part of r67451. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67500 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-23 03:45:56 +00:00
Chris Lattner
dae2206390 Fix PR3860 by correcting a predicate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67473 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-22 19:22:53 +00:00
Duncan Sands
19527c6ef3 Add some explanations of how apint loads and stores 
work.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67471 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-22 11:33:16 +00:00
Bill Wendling
ad20d3825e Really should pass -dylib to the linker... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67469 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-22 08:56:15 +00:00
Bill Wendling
aca5695223 A dylib should be built as a dylib and not a bundle. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67468 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-22 08:28:45 +00:00
Chris Lattner
4cc2b85861 add method to access a template argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67458 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-22 00:18:18 +00:00
Duncan Sands
64da9409cb Factorize out a concept - no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67454 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-21 21:27:31 +00:00
Evan Cheng
802cd84eb4 Re-commit r67334 and r67349 with fix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67451 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-21 18:12:24 +00:00
Chris Lattner
8c7f24a36a add a fastpath to ConstantExpr::getBitCast to handle the case when an obviously 
unneeded bitcast is requested.  This is common for frontends who just unconditionally
cast even if the target is often the right type already.  THis prevents going into
getFoldedCast which switches on the opcode and does a bunch of other stuff before
doing the same opzn.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67435 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-21 06:55:54 +00:00
Chris Lattner
3ee87b6f9d add some inline methods for infix operators on sparse vectors, 
tidy some df iteration stuff, patch by John Mosby!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67428 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-21 05:40:09 +00:00
Bruno Cardoso Lopes
bdfbb74d34 Removed AFGR32 register class 
Handle odd registers allocation in FGR32.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67422 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-21 00:05:07 +00:00
Bob Wilson
2a14c521ca Fix a few more indentation problems and an 80-column violation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67416 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-20 23:16:43 +00:00
Bob Wilson
2dc4f54324 No functional changes. Fix indentation and whitespace only. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67412 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-20 22:42:55 +00:00
Chris Lattner
344c7c5cc4 Fix instcombine to not introduce undefined shifts when merging two 
shifts together.  This fixes PR3851.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67411 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-20 22:41:15 +00:00
Duncan Sands
ab6b226978 Don't load values out of global constants with weak 
linkage: the value may be replaced with something
different at link time.  (Frontends that want to
allow values to be loaded out of weak constants can
give their constants weak_odr linkage).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67407 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-20 21:53:29 +00:00
Dan Gohman
db95fa131a Simplify this code; use a while instead of an if and a do-while. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67400 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-20 20:42:23 +00:00
Evan Cheng
697cbbfb00 For inline asm output operand that matches an input. Encode the input operand index in the high bits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67387 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-20 18:03:34 +00:00
Sanjiv Gupta
e9d81f0ad8 Fixed comment for libcalls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67373 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-20 14:10:20 +00:00
Sanjiv Gupta
91520ea585 Fixed build warnings for unused variables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67372 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-20 13:49:20 +00:00
Sanjiv Gupta
6b830e6d0d Reformatting. Inserted code comments. Cleaned interfaces. 
Removed unncessary code. No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67371 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-20 13:42:20 +00:00
Sanjiv Gupta
b169426272 Fixed the comment. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67370 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-20 09:38:50 +00:00
Nick Lewycky
faf880fd5d Revert r67334 and r37349 which break "make check" on Linux. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67368 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-20 07:56:31 +00:00
Chris Lattner
8fc2d0ee8d Apply the patch requested in PR3846. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67364 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-20 05:08:24 +00:00
Mon P Wang
bc65ca8de5 Added option to enable generating less precise mad (multiply addition) 
for those architectures that support the instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67363 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-20 05:06:58 +00:00
Dan Gohman
654c98c4f3 The last use in a block that doesn't have successors 
(return or unreachable) is a kill.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67357 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-20 01:28:21 +00:00
Evan Cheng
23d8539d1e Fix typo's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67349 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-20 00:14:09 +00:00
Sebastian Redl
48fe63526e Fix the Win32 VS2008 build: 
- Make type declarations match the struct/class keyword of the definition.
 - Move AddSignalHandler into the namespace where it belongs.
 - Correctly call functions from template base.
 - Some other small changes.
With this patch, LLVM and Clang should build properly and with far less noise under VS2008.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67347 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-19 23:26:52 +00:00
Evan Cheng
a24752ff43 Added MachineInstr::isRegTiedToDefOperand to check for two-addressness. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67335 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-19 20:30:06 +00:00
Evan Cheng
817046e1f1 More makefile changes to allow dejagnu tests to pass when system tools default to a different target from the llvm configuration (e.g. 64-bit gcc and 32-bit llvm). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67334 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-19 20:27:23 +00:00
Misha Brukman
8be1ac213b Renamed unittest files to have a consistent {Tt}est suffix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67326 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-19 19:09:48 +00:00
Dan Gohman
56e04a80b3 SADDO and UADDO are commutative. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67319 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-19 18:53:45 +00:00