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388 Commits

Author SHA1 Message Date
Nate Begeman
7cbd525ba8 Implement BR_CC and BRTWOWAY_CC. This allows the removal of a rather nasty 
fixme from the PowerPC backend.  Emit slightly better code for legalizing
select_cc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22805 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-16 19:49:35 +00:00
Chris Lattner
1b95095857 add some methods for dag->dag isel 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22800 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-16 18:16:24 +00:00
Nate Begeman
ff66368a5f Remove an unncessary argument to SimplifySelectCC and add an additional 
assert when creating a select_cc node.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22780 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-13 06:14:17 +00:00
Nate Begeman
32c392a3a5 Fix the fabs regression on x86 by abstracting the select_cc optimization 
out into SimplifySelectCC.  This allows both ISD::SELECT and ISD::SELECT_CC
to use the same set of simplifying folds.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22779 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-13 06:00:21 +00:00
Nate Begeman
e5d63829fd Some SELECT_CC cleanups: 
1. move assertions for node creation to getNode()
2. legalize the values returned in ExpandOp immediately
3. Move select_cc optimizations from SELECT's getNode() to SELECT_CC's,
   allowing them to be cleaned up significantly.

This paves the way to pick up additional optimizations on SELECT_CC, such
as sum-of-absolute-differences.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22757 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-11 01:12:20 +00:00
Nate Begeman
9373a81e53 Add new node, SELECT_CC. This node is for targets that don't natively 
implement SELECT.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22755 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-10 20:51:12 +00:00
Chris Lattner
4cf009f49c I can't believe I caught this before Misha! :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22733 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-09 23:08:53 +00:00
Chris Lattner
7cf7e3f33f Eliminate the SetCCSDNode in favor of a CondCodeSDNode class. This pulls the 
CC out of the SetCC operation, making SETCC a standard ternary operation and
CC's a standard DAG leaf.  This will make it possible for other node to use
CC's as operands in the future...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22728 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-09 20:20:18 +00:00
Chris Lattner
5f056bf4b8 Change *EXTLOAD to use an VTSDNode operand instead of being an MVTSDNode. 
This is the last MVTSDNode.

This allows us to eliminate a bunch of special case code for handling
MVTSDNodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22367 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-10 01:55:33 +00:00
Chris Lattner
f7db8c69a1 Move TRUNCSTORE to using a VTSDNode operand instead of being a MVTSDNode. 
Also update some comments that Andrew forgot to update when he changed
loads/stores.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22365 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-10 00:28:25 +00:00
Chris Lattner
15e4b01920 Introduce a new VTSDNode class with the ultimate goal of eliminating the 
MVTSDNode class.  This class is used to provide an operand to operators
that require an extra type.  We start by converting FP_ROUND_INREG and
SIGN_EXTEND_INREG over to using it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22364 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-10 00:07:11 +00:00
Chris Lattner
6765bfed31 add a new map 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22017 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 07:36:02 +00:00
Chris Lattner
4211e73c49 Add a way to construct an arbitrary node, cleanly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22008 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 06:20:08 +00:00
Chris Lattner
4c1eae9fb3 add TAILCALL node 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21956 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 18:40:17 +00:00
Chris Lattner
21074f43ed Add READPORT, WRITEPORT, READIO, WRITEIO nodes, wrap long lines 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21823 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-09 20:21:27 +00:00
Andrew Lenharth
691ef2ba06 Implement count leading zeros (ctlz), count trailing zeros (cttz), and count 
population (ctpop).  Generic lowering is implemented, however only promotion
is implemented for SelectionDAG at the moment.

More coming soon.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21676 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-03 17:19:30 +00:00
Andrew Lenharth
2d86ea21dd Implement Value* tracking for loads and stores in the selection DAG. This enables one to use alias analysis in the backends. 
(TRUNK)Stores and (EXT|ZEXT|SEXT)Loads have an extra SDOperand which is a SrcValueSDNode which contains the Value*.  Note that if the operation is introduced by the backend, it will still have the operand, but the value* will be null.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21599 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-27 20:10:01 +00:00
Misha Brukman
ea61c35872 Remove trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21409 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-21 20:39:54 +00:00
Chris Lattner
1ccae666f5 Add a new helper method which returns the and that is equivalent to what 
ZERO_EXTEND_INREG was.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21264 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 02:37:19 +00:00
Chris Lattner
b29cb29364 Map doubles from integers, not the double itself. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20229 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-17 20:16:58 +00:00
Chris Lattner
063287a76b Give SelectionDAG a TargetLowering instance instead of TM instance. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19778 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-23 04:36:06 +00:00
Chris Lattner
02b86f52ed Add an accessor for targets that pass args in regs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19702 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-19 20:19:58 +00:00
Chris Lattner
c7ba0eb5eb Keep track of the returned value type as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19669 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-18 19:26:18 +00:00
Chris Lattner
30c0fc23c5 Allow setcc operations to have non-bool types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19655 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-18 02:51:41 +00:00
Chris Lattner
859157daee Add new SIGN_EXTEND_INREG, ZERO_EXTEND_INREG, and FP_ROUND_INREG operators. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19568 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-15 06:17:04 +00:00
Chris Lattner
60e4878f94 Change CopyFromReg to take and produce a chain node, allowing it to be used 
with physregs that are not live across the entire block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19560 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-14 22:37:20 +00:00
Chris Lattner
1cff05c7c2 Start adding some new operators, give IMPLICIT_DEF a chain operand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19558 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-14 22:07:46 +00:00
Chris Lattner
18c2f13e0f Add new ImplicitDef node, rename CopyRegSDNode class to RegSDNode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19535 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-13 20:50:02 +00:00
Chris Lattner
9ffdfb6bae Update comments to indicate CopyFrom/ToReg take physregs as well as vregs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19514 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-12 18:11:36 +00:00
Chris Lattner
1080b9ee53 Add support for graph operations, and add a viewGraph method to SelectionDAG. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19440 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-10 23:05:53 +00:00
Chris Lattner
d1fc96499b Add a new SelectionDAG::RemoveDeadNodes method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19344 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-07 21:08:55 +00:00
Chris Lattner
c3aae25116 Complete rewrite of the SelectionDAG class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19327 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-07 07:46:32 +00:00
Reid Spencer
551ccae044 Changes For Bug 352 
Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16137 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-01 22:55:40 +00:00
Brian Gaeke
d0fde30ce8 Put all LLVM code into the llvm namespace, as per bug 109. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9903 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-11-11 22:41:34 +00:00
John Criswell
6fbcc26f14 Added LLVM copyright header (for lack of a better term). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9304 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-10-20 20:19:47 +00:00
Chris Lattner
b274d4a38b Add missing #include 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8063 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-22 23:08:55 +00:00
Chris Lattner
f4f5f8bcaa Add support for basic blocks, unary/binary unspecs, conditional branches, ... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7874 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-15 04:52:51 +00:00
Chris Lattner
cacf462915 Initial checkin of SelectionDAG header file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7716 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-11 14:56:26 +00:00