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677 Commits

Author SHA1 Message Date
Chris Lattner
4ab26b20b7 Add a method 
llvm-svn: 23989
 2005-10-25 21:02:21 +00:00
Chris Lattner
1245463d22 Remove a prototype 
llvm-svn: 23951
 2005-10-24 04:13:21 +00:00
Andrew Lenharth
9fad56d2d2 add TargetExternalSymbol 
llvm-svn: 23886
 2005-10-23 03:40:17 +00:00
Chris Lattner
610724aedd add missing prototype 
llvm-svn: 23867
 2005-10-21 15:49:28 +00:00
Chris Lattner
ca5f516c08 add a new method 
llvm-svn: 23840
 2005-10-20 07:37:59 +00:00
Nate Begeman
b49e7aa166 SimplifySelectCC is dead 
llvm-svn: 23705
 2005-10-13 03:10:46 +00:00
Chris Lattner
bc5ae03dea add a helper class 
llvm-svn: 23633
 2005-10-05 06:34:34 +00:00
Jim Laskey
1c928ba21a Added allnodes_size for scheduling support. 
llvm-svn: 23567
 2005-09-30 19:27:01 +00:00
Chris Lattner
9a2fb006e4 Add FP versions of the binary operators, keeping the int and fp worlds seperate. 
llvm-svn: 23506
 2005-09-28 22:29:58 +00:00
Chris Lattner
288e5b0a7d Expose the LiveInterval interfaces as public headers. 
llvm-svn: 23400
 2005-09-21 04:19:09 +00:00
Chris Lattner
b68c833b48 Add a new argument to ReplaceAllUsesWith to keep track of nodes deleted by 
this method

llvm-svn: 23254
 2005-09-07 05:36:18 +00:00
Chris Lattner
7862cff120 add a map for nullary ops 
llvm-svn: 23223
 2005-09-02 19:35:42 +00:00
Chris Lattner
a0ac88861d Add a new ANY_EXTEND node, which operates like an extension but has undefined 
top bits.

llvm-svn: 23200
 2005-09-02 00:14:40 +00:00
Nate Begeman
be2fa8f86f First pass at the DAG Combiner. It isn't used anywhere yet, but it should 
be mostly functional.  It currently has all folds from SelectionDAG.cpp
that do not involve a condition code.

llvm-svn: 23184
 2005-09-01 00:19:25 +00:00
Chris Lattner
ed58907fa3 remove an inappropriate comment 
llvm-svn: 23182
 2005-08-31 22:49:51 +00:00
Chris Lattner
b06ce2e026 Allow physregs to occur in the dag with multiple types. Though I don't like 
this, it is a requirement on PPC, which can have an f32 value in r3 at one
point in a function and a f64 value in r3 at another point.  :(

llvm-svn: 23160
 2005-08-30 22:38:05 +00:00
Nate Begeman
f279937fd9 Add AssertSext, AssertZext nodes for targets that pass arguments in 
registers, and the incoming values have already been zero or sign extended
from the appopriate type to the register width.

llvm-svn: 23146
 2005-08-30 02:39:32 +00:00
Chris Lattner
d6753aa388 add some method variants 
llvm-svn: 23142
 2005-08-30 01:56:13 +00:00
Chris Lattner
1a17dba9d1 improve comment 
llvm-svn: 23134
 2005-08-29 22:48:32 +00:00
Chris Lattner
05f6bb1b68 Add a new API for nate 
llvm-svn: 23132
 2005-08-29 22:00:00 +00:00
Reid Spencer
71966308fc Fix a typo. 
llvm-svn: 23117
 2005-08-27 19:06:05 +00:00
Chris Lattner
25b6e62a46 Add a new version of ReplaceAllUsesWith, make the comments more useful. 
llvm-svn: 23086
 2005-08-26 18:35:58 +00:00
Chris Lattner
a31708e6b3 Change ConstantPoolSDNode to actually hold the Constant itself instead of 
putting it into the constant pool.  This allows the isel machinery to
create constants that it will end up deciding are not needed, without them
ending up in the resultant function constant pool.

llvm-svn: 23081
 2005-08-26 17:15:30 +00:00
Chris Lattner
929c00e9e9 Fix a huge annoyance: SelectNodeTo took types before the opcode unlike 
every other SD API.  Fix it to take the opcode before the types.

llvm-svn: 23079
 2005-08-26 16:36:26 +00:00
Chris Lattner
70cc927742 add a method 
llvm-svn: 23049
 2005-08-25 17:24:09 +00:00
Chris Lattner
713643bc71 add an enum value 
llvm-svn: 23048
 2005-08-25 17:07:09 +00:00
Chris Lattner
165fcbcd64 Fix a problem Duraid noticed, where we weren't removing values from the kills 
list when doing two-address and phi node lowering during register allocation.

llvm-svn: 23043
 2005-08-25 05:45:31 +00:00
Chris Lattner
70cb011425 Add support for TargetConstantPool node 
llvm-svn: 23040
 2005-08-25 05:02:41 +00:00
Chris Lattner
813f6ddaf8 add a new TargetFrameIndex node 
llvm-svn: 23035
 2005-08-25 00:43:01 +00:00
Chris Lattner
22c6c99e5d add a method 
llvm-svn: 23027
 2005-08-24 23:00:29 +00:00
Chris Lattner
79191b194f add two new methods 
llvm-svn: 23024
 2005-08-24 22:43:53 +00:00
Chris Lattner
180f2050d0 Keep the killed/dead sets sorted, so that "KillsRegister" can do a quick 
binary search to test for membership.  This speeds up LLC a bit more on KC++,
e.g. on itanium from 16.6974s to 14.8272s, PPC from 11.4926s to 10.7089s and
X86 from 10.8128s to 9.7943s, with no difference in generated code (like all
of the RA patches).

With these changes, isel is the slowest pass for PPC/X86, but linscan+live
intervals is still > 50% of the compile time for itanium.  More work could
be done, but this is the last for now.

llvm-svn: 22993
 2005-08-24 00:09:02 +00:00
Chris Lattner
3bb878f134 Change live variables from using multimaps to using maps of vectors and 
rearrange some of the accessors to be more efficient.

This makes it much more efficient to iterate over all of the things with the
same value.  This speeds up liveintervals analysis from 8.63s to 3.79s with
a release build of llc on kc++ with -march=ia64.  This also speeds up live
var from 1.66s -> 0.87s as well, reducing total llc time from 20.1s->15.2s.

This also speeds up other targets slightly, e.g. llc time on X86 from 16.84
-> 16.45s, and PPC from 17.64->17.03s.

llvm-svn: 22990
 2005-08-23 23:40:41 +00:00
Chris Lattner
f91a79a306 Add RegisterDefIsDead to correspond to KillsRegister, mark both const 
llvm-svn: 22987
 2005-08-23 22:43:24 +00:00
Chris Lattner
a51be5a84c add a method 
llvm-svn: 22958
 2005-08-21 22:30:42 +00:00
Chris Lattner
5c82be2ffc ADd a method 
llvm-svn: 22954
 2005-08-21 19:48:53 +00:00
Chris Lattner
d76cf28d13 Add 5-operand version of SelectNodeTo 
llvm-svn: 22950
 2005-08-21 18:49:58 +00:00
Chris Lattner
0c4565bf91 ADd support for TargetGlobalAddress nodes 
llvm-svn: 22939
 2005-08-19 22:31:34 +00:00
Nate Begeman
0966f7d0b9 Add support for target nodes with more than 3 operands, required by ppc 
llvm-svn: 22894
 2005-08-19 00:56:28 +00:00
Chris Lattner
2e3f21c27f add a method 
llvm-svn: 22867
 2005-08-18 18:44:33 +00:00
Nate Begeman
474ec3c02d Add support for target DAG nodes that take 4 operands, such as PowerPC's 
rlwinm.

llvm-svn: 22856
 2005-08-18 07:30:15 +00:00
Nate Begeman
50efb750b6 Add two new methods isTargetOpcode() which returns true if the node type 
is greater than the range of building selection dag node types, and
getTargetOpcode(), which returns the node opcode less the value of
isd::builtin_op_end, which specifies the end of the builtin types.

llvm-svn: 22844
 2005-08-17 23:44:54 +00:00
Jim Laskey
d761e8859d Move the code dependency for MathExtras.h from SelectionDAGNodes.h. 
Added some class dividers in SelectionDAG.cpp.

llvm-svn: 22841
 2005-08-17 20:08:02 +00:00
Jim Laskey
61e3d7bca5 Culling out use of unions for converting FP to bits and vice versa. 
llvm-svn: 22838
 2005-08-17 19:34:49 +00:00
Chris Lattner
14518a342f add ReplaceAllUsesWith, and a helper to implemented it 
llvm-svn: 22833
 2005-08-17 18:59:17 +00:00
Chris Lattner
1e93590d9f Make removeUser more efficient, add a matching addUser. 
Fix the setOperands methods I added to update use/def information correctly.

llvm-svn: 22832
 2005-08-17 18:58:38 +00:00
Chris Lattner
d3add16ed6 This was moved to the .cpp file 
llvm-svn: 22827
 2005-08-17 06:46:50 +00:00
Chris Lattner
dd99fbadb7 make sure to remove a node from the use list of its operands when we replace 
it.

llvm-svn: 22820
 2005-08-17 01:54:00 +00:00
Chris Lattner
3895acdb6a add some helper methods, and a new TargetConstant node, which is not 
subjected to folding.

llvm-svn: 22812
 2005-08-17 00:33:30 +00:00
Chris Lattner
3b7e157005 Eliminate the RegSDNode class, which 3 nodes (CopyFromReg/CopyToReg/ImplicitDef) 
used to tack a register number onto the node.

Instead of doing this, make a new node, RegisterSDNode, which is a leaf
containing a register number.  These three operations just become normal
DAG nodes now, instead of requiring special handling.

Note that with this change, it is no longer correct to make illegal
CopyFromReg/CopyToReg nodes.  The legalizer will not touch them, and this
is bad, so don't do it. :)

llvm-svn: 22806
 2005-08-16 21:55:35 +00:00