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2981 Commits

Author SHA1 Message Date
Nate Begeman
5ad0e12280 Add support for count trailing zeroes, and population count. These are 
needed for folding constants in the upcoming dag combiner.

llvm-svn: 23163
 2005-08-31 00:25:01 +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
31b20389f9 Change the names of member variables per Chris' instructions, and document 
them more clearly.

llvm-svn: 23118
 2005-08-27 19:09:02 +00:00
Reid Spencer
71966308fc Fix a typo. 
llvm-svn: 23117
 2005-08-27 19:06:05 +00:00
Chris Lattner
e91069c4de add some forward defs 
llvm-svn: 23100
 2005-08-26 21:06:40 +00:00
Chris Lattner
ac19224b29 spell this right! 
llvm-svn: 23097
 2005-08-26 20:53:44 +00:00
Chris Lattner
98bd9339ce Add a hook 
llvm-svn: 23096
 2005-08-26 20:53:09 +00:00
Chris Lattner
fd72abe85b Add a new instruction flag 
llvm-svn: 23093
 2005-08-26 20:31:24 +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
Jim Laskey
a841c4183a Change unsigned lng to unsigned. 
llvm-svn: 23077
 2005-08-26 09:24:46 +00:00
Jim Laskey
236ef88c39 Added cl::bits option type (bit vectors). See "Collecting options as a set 
of flags" in the Command Line doc.

llvm-svn: 23067
 2005-08-25 23:31:45 +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
Jim Laskey
4878a218a4 Recommended to use std::algorithms instead. 
llvm-svn: 23046
 2005-08-25 16:21:56 +00:00
Jim Laskey
86cc9d4550 Added support for generic linear/binary search. 
llvm-svn: 23044
 2005-08-25 13:32:25 +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
b71b78a79d rename hasNativeSupportFor* -> is(Operation|Type)Legal. 
llvm-svn: 23011
 2005-08-24 16:34:59 +00:00
Misha Brukman
14a6b6e354 Wrap long lines 
llvm-svn: 23009
 2005-08-24 14:03:07 +00:00
Reid Spencer
124828d796 Remove some tabs. 
Wrap a line.

llvm-svn: 23008
 2005-08-24 10:57:30 +00:00
Reid Spencer
a1470f81ae For PR616: 
These patches make threading optional in LLVM. The configuration scripts are now
modified to accept a --disable-threads switch. If this is used, the Mutex class
will be implemented with all functions as no-op. Furthermore, linking against
libpthread will not be done. Finally, the ParallelJIT example needs libpthread
so its makefile was changed to always add -lpthread to the link line.

llvm-svn: 23003
 2005-08-24 10:07:20 +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
a6da5575c8 add a method 
llvm-svn: 22985
 2005-08-23 21:45:31 +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
Chris Lattner
6fcfaee2fc Add a new field to TargetInstrDescriptor for tracking information about 
operands.

llvm-svn: 22908
 2005-08-19 16:56:26 +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
Nate Begeman
a978ae8b7d Remove the X86 and PowerPC Simple instruction selectors; their time has 
passed.

llvm-svn: 22886
 2005-08-18 23:53:15 +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
Jim Laskey
b45eb1e518 include/llvm/Support/MathExtras.h 
llvm-svn: 22846
 2005-08-17 23:54:12 +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
5f57048c62 Move code dependency for MathExtras.h out of Constants.h. 
llvm-svn: 22840
 2005-08-17 20:06:22 +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