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8642 Commits

Author SHA1 Message Date
Jakob Stoklund Olesen
dd437ba15e Avoid adding PHI arguments for a predecessor that has gone away when a BRCOND was constant folded. 
This fixes PR5980.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93184 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 21:02:33 +00:00
Mon P Wang
fe240b1066 Disable transformation of select of two loads to a select of address and then a load if the 
loads are not in the default address space because the transformation discards src value info.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93180 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 20:12:49 +00:00
Devang Patel
23598502ef s/NextValueNo/NextMDValueNo while processing metadata. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93165 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 18:52:33 +00:00
Dan Gohman
d199636039 Revert an earlier change to SIGN_EXTEND_INREG for vectors. The VTSDNode 
really does need to be a vector type, because
TargetLowering::getOperationAction for SIGN_EXTEND_INREG uses that type,
and it needs to be able to distinguish between vectors and scalars.

Also, fix some more issues with legalization of vector casts.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93043 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 02:13:55 +00:00
Evan Cheng
54e146b935 Dan pointed out checking whether a node is dead by comparing its opcode to ISD::DELETED_NODE is not safe. Use a DAGUpdateListener to remove dead nodes from work list instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93031 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 00:21:08 +00:00
Evan Cheng
6f279e0bda ReplaceAllUsesOfValueWith may delete other nodes that the one being replaced. Do not delete dead nodes again. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92988 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-08 02:36:12 +00:00
Chris Lattner
bd1fccfad5 Fix rdar://7517201, a regression introduced by r92849. 
When folding a and(any_ext(load)) both the any_ext and the
load have to have only a single use.

This removes the anyext-uses.ll testcase which started failing
because it is unreduced and unclear what it is testing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92950 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-07 21:59:23 +00:00
Chris Lattner
ef7634ca48 factor this code better and reduce nesting at the same 
time, no functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92948 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-07 21:53:27 +00:00
Evan Cheng
347a9cb507 APInt'fy TargetLowering::SimplifySetCC to fix PR5963. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92943 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-07 20:58:44 +00:00
Benjamin Kramer
2e0de6f771 Simplify code. No intended functionality/performance change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92938 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-07 19:46:15 +00:00
Benjamin Kramer
3d594fd299 Kill dead store. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92920 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-07 17:50:57 +00:00
Benjamin Kramer
e7078aed24 Remove dead variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92919 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-07 17:29:08 +00:00
Benjamin Kramer
7b1e2a50a5 Use pop_back_val instead of back()+pop_back. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92918 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-07 17:27:56 +00:00
Jakob Stoklund Olesen
541e9ae3ad Allow double defs after tail duplication. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92874 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-06 23:52:46 +00:00
Jakob Stoklund Olesen
30ac0467ce Add Target hook to duplicate machine instructions. 
Some instructions refer to unique labels, and so cannot be trivially cloned
with CloneMachineInstr.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92873 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-06 23:47:07 +00:00
Jim Grosbach
80c2b0d9ef Anti-dependency breaking needs to be careful regarding instructions with 
multiple register definitions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92864 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-06 22:21:25 +00:00
Evan Cheng
54eb4c2991 Comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92850 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-06 19:43:21 +00:00
Evan Cheng
d40d03e1bd Teach dag combine to fold the following transformation more aggressively: 
(OP (trunc x), (trunc y)) -> (trunc (OP x, y))

Unfortunately this simple change causes dag combine to infinite looping. The problem is the shrink demanded ops optimization tend to canonicalize expressions in the opposite manner. That is badness. This patch disable those optimizations in dag combine but instead it is done as a late pass in sdisel.

This also exposes some deficiencies in dag combine and x86 setcc / brcond lowering. Teach them to look pass ISD::TRUNCATE in various places.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92849 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-06 19:38:29 +00:00
Jim Grosbach
2973b57093 80 column and whitespace cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92837 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-06 16:48:02 +00:00
Lang Hames
421c0733fd Fixed malformed -*- lines in PBQP headers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92830 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-06 08:53:34 +00:00
Jakob Stoklund Olesen
8efadf94b5 Add <imp-def> and <imp-kill> operands when replacing virtual sub-register defs and kills. 
An instruction like this:

  %reg1097:1<def> = VMOVSR %R3<kill>, 14, %reg0

Must be replaced with this when substituting physical registers:

  %S0<def> = VMOVSR %R3<kill>, 14, %reg0, %D0<imp-def>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92812 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-06 00:29:28 +00:00
Bill Wendling
3f09487404 The previous code could potentially cause a cycle. Allow ordering w.r.t. a 0 order. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92810 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-06 00:23:35 +00:00
Bill Wendling
cfeea4b92a Only check the ordering if there is an ordering for each nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92807 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-06 00:09:23 +00:00
Bill Wendling
247fb4ebd3 Add a semi-primitive form of scheduling via the "SDNode ordering" to the 
bottom-up scheduler. We prefer the lower order number.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92806 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 23:48:12 +00:00
Bill Wendling
9f7c5c0dca Don't assign the shift the same type as the variable being shifted. This could 
result in illegal types for the SHL operator.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92797 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 22:39:10 +00:00
Dan Gohman
7c3ecb6838 Don't use the ISD::NodeType enum for SDNode opcodes, as CodeGen 
uses several kinds of opcode values which are not declared within
that enum. This fixes PR5946.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92794 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 22:26:32 +00:00
Dan Gohman
dda30cd4af Restore dump() methods to Loop and MachineLoop. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92772 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 21:08:02 +00:00
Benjamin Kramer
8c65f6e71c Move remaining stuff to the isInteger predicate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92771 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 21:05:54 +00:00
Jakob Stoklund Olesen
b31defe94c Remove livein checks from machine code verifier. 
A phi operand that is implicitly defined in a predecessor becomes an undefined
register after phi elimination. This causes a lot of false positives when the
verifier is checking if live-in registers are live-out from all predecessors.

Removing the verifier checks seems like a better solution than insisting on
IMPLICIT_DEF instructions in predecessor blocks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92769 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 20:59:36 +00:00
Devang Patel
ee890edd69 If a scope has only one instruction then first instruction is also the last instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92736 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 16:59:17 +00:00
Benjamin Kramer
f012705c7e Avoid going through the LLVMContext for type equality where it's safe to dereference the type pointer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92726 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 13:12:22 +00:00
Devang Patel
614d2ad0af Delete renaming use of dead dbg intrinsics. 
Intrinsic::dbg_stoppoint
 Intrinsic::dbg_region_start
 Intrinsic::dbg_region_end
 Intrinsic::dbg_func_start



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92672 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:47:06 +00:00
Devang Patel
351ca33284 Use StringRef.startswith(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92671 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:46:14 +00:00
David Greene
1a053236f1 Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92597 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:26:11 +00:00
David Greene
dea8fbcae5 Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92596 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:26:09 +00:00
David Greene
4424817a0d Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92595 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:26:05 +00:00
David Greene
e1b2129471 Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92594 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:26:01 +00:00
David Greene
c19a9cdfac Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92593 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:26:00 +00:00
David Greene
32edbd7454 Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92592 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:25:58 +00:00
David Greene
65de504ad2 Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92591 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:25:55 +00:00
David Greene
0ee5218cb2 Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92590 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:25:52 +00:00
David Greene
87b0efc86d Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92589 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:25:50 +00:00
David Greene
4175f58d6d Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92588 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:25:47 +00:00
David Greene
0080b1accc Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92587 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:25:45 +00:00
David Greene
3093154206 Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92586 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:25:43 +00:00
David Greene
4b134d1661 Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92585 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:25:41 +00:00
David Greene
0d5c06e0b6 Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92584 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:25:39 +00:00
David Greene
37277762c2 Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92583 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:25:20 +00:00
David Greene
00dec1bbf9 Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92582 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:25:15 +00:00
David Greene
84fa8229bb Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92581 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:25:11 +00:00