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377 Commits

Author SHA1 Message Date
Chris Lattner
fe1fd00ce8 Add code to resize the CSEMap hash table. This doesn't speedup codegen of 
kimwitu, but seems like a good idea from a "avoid performance cliffs" standpoint :)

llvm-svn: 29675
 2006-08-14 22:19:25 +00:00
Chris Lattner
e02af2c427 Add the actual constant to the hash for ConstantPool nodes. Thanks to 
Rafael Espindola for pointing this out.

llvm-svn: 29669
 2006-08-14 20:12:44 +00:00
Chris Lattner
a271f8f58c Remove 8 more std::map's. 
llvm-svn: 29631
 2006-08-11 21:55:30 +00:00
Chris Lattner
76da77fcbb Move the BBNodes, GlobalValues, TargetGlobalValues, Constants, TargetConstants, 
RegNodes, and ValueNodes maps into the CSEMap.

llvm-svn: 29626
 2006-08-11 21:01:22 +00:00
Chris Lattner
3c504c013b eliminate the NullaryOps map, use CSEMap instead. 
llvm-svn: 29621
 2006-08-11 18:38:11 +00:00
Chris Lattner
a47d3dd2cc Change one ReplaceAllUsesWith method to take an array of operands to replace 
instead of a vector of operands.

llvm-svn: 29616
 2006-08-11 17:46:28 +00:00
Chris Lattner
7b1362fa52 Start eliminating temporary vectors used to create DAG nodes. Instead, pass 
in the start of an array and a count of operands where applicable.  In many
cases, the number of operands is known, so this static array can be allocated
on the stack, avoiding the heap.  In many other cases, a SmallVector can be
used, which has the same benefit in the common cases.

I updated a lot of code calling getNode that takes a vector, but ran out of
time.  The rest of the code should be updated, and these methods should be
removed.

We should also do the same thing to eliminate the methods that take a
vector of MVT::ValueTypes.

It would be extra nice to convert the dagiselemitter to avoid creating vectors
for operands when calling getTargetNode.

llvm-svn: 29566
 2006-08-08 02:23:42 +00:00
Chris Lattner
be2fc7b875 Eliminate some malloc traffic by allocating vectors on the stack. Change some 
method that took std::vector<SDOperand> to take a pointer to a first operand
and #operands.

This speeds up isel on kc++ by about 3%.

llvm-svn: 29561
 2006-08-08 01:09:31 +00:00
Chris Lattner
1661ffa2eb Revamp the "CSEMap" datastructure used in the SelectionDAG class. This 
eliminates a bunch of std::map's in the SelectionDAG, replacing them with a
home-grown hashtable.

This is still a work in progress: not all the maps have been moved over and the
hashtable never resizes.  That said, this still speeds up llc 20% on kimwitu++
with -fast -regalloc=local using a release build.

llvm-svn: 29550
 2006-08-07 23:03:03 +00:00
Evan Cheng
d64d5529b0 Clear TopOrder before assigning topological order. Some clean ups. 
llvm-svn: 29546
 2006-08-07 22:13:29 +00:00
Chris Lattner
154ffd3c8f Make SelectionDAG::RemoveDeadNodes iterative instead of recursive, which 
also make it simpler.

llvm-svn: 29524
 2006-08-04 17:45:20 +00:00
Evan Cheng
92b45ad949 - Change AssignTopologicalOrder to return vector of SDNode* by reference. 
- Tweak implementation to avoid using std::map.

llvm-svn: 29479
 2006-08-02 22:00:34 +00:00
Evan Cheng
e4fdb294ae Added AssignTopologicalOrder() to assign each node an unique id based on their topological order. 
llvm-svn: 29431
 2006-08-01 08:20:41 +00:00
Evan Cheng
3b5f1c6248 Remove InFlightSet hack. No longer needed. 
llvm-svn: 29373
 2006-07-28 00:47:19 +00:00
Evan Cheng
bdb2562804 AssignNodeIds should return unsigned. 
llvm-svn: 29343
 2006-07-27 07:36:47 +00:00
Evan Cheng
5783fd4aab AssignNodeIds assign each node in the DAG an unique id. 
llvm-svn: 29337
 2006-07-27 06:39:06 +00:00
Chris Lattner
3415e20ae6 Add an out-of-line virtual method for the sdnode class to give it a home. 
llvm-svn: 29192
 2006-07-19 00:00:37 +00:00
Evan Cheng
90a25bcd6f Ugly hack! Add helper functions InsertInFlightSetEntry and 
RemoveInFlightSetEntry. They are used in place of direct set operators to
reduce instruction selection function stack size.

llvm-svn: 28987
 2006-06-29 23:57:05 +00:00
Chris Lattner
e788574b82 Fix CodeGen/Generic/2006-06-28-SimplifySetCCCrash.ll 
llvm-svn: 28965
 2006-06-28 18:29:47 +00:00
Chris Lattner
01f4f28837 Add a new ISD::CALL node, make the default impl of TargetLowering::LowerCallTo 
produce it.

llvm-svn: 28338
 2006-05-16 22:53:20 +00:00
Chris Lattner
9a24639afc remove dead vars 
llvm-svn: 28254
 2006-05-12 18:04:28 +00:00
Chris Lattner
db5b91f6a8 Compile: 
%tmp152 = setgt uint %tmp144, %tmp149           ; <bool> [#uses=1]
        %tmp159 = setlt uint %tmp144, %tmp149           ; <bool> [#uses=1]
        %bothcond2 = or bool %tmp152, %tmp159           ; <bool> [#uses=1]

To setne, not setune, which causes an assertion fault.

llvm-svn: 28244
 2006-05-12 17:03:46 +00:00
Chris Lattner
bbe4393bc4 Fold shifts with undef operands. 
llvm-svn: 28167
 2006-05-08 17:29:49 +00:00
Chris Lattner
4a4cbde0bb constant fold sign_extend_inreg 
llvm-svn: 28151
 2006-05-06 23:05:41 +00:00
Chris Lattner
3b27c1bd33 Fix Regression/CodeGen/Generic/2006-04-26-SetCCAnd.ll and 
PR748.

llvm-svn: 27987
 2006-04-27 05:01:07 +00:00
Nate Begeman
7ed816f900 JumpTable support! What this represents is working asm and jit support for 
x86 and ppc for 100% dense switch statements when relocations are non-PIC.
This support will be extended and enhanced in the coming days to support
PIC, and less dense forms of jump tables.

llvm-svn: 27947
 2006-04-22 18:53:45 +00:00
Chris Lattner
fa2e364d9c Implement folding of a bunch of binops with undef 
llvm-svn: 27863
 2006-04-20 05:39:12 +00:00
Chris Lattner
918dbf7203 Make these predicates return true for bit_convert(buildvector)'s as well as 
buildvectors.

llvm-svn: 27723
 2006-04-15 23:38:00 +00:00
Chris Lattner
70d68fcfcb Implement support for the formal_arguments node. To get this, targets shouldcustom legalize it and remove their XXXTargetLowering::LowerArguments overload 
llvm-svn: 27604
 2006-04-12 16:20:43 +00:00
Chris Lattner
3df4b4ca55 Don't memoize vloads in the load map! Don't memoize them anywhere here, let 
getNode do it.  This fixes CodeGen/Generic/2006-04-11-vecload.ll

llvm-svn: 27602
 2006-04-12 03:25:41 +00:00
Chris Lattner
2c57f7285e Add code generator support for VSELECT 
llvm-svn: 27542
 2006-04-08 22:22:57 +00:00
Chris Lattner
85dc06c29e Constant fold bitconvert(undef) 
llvm-svn: 27391
 2006-04-04 01:02:22 +00:00
Chris Lattner
8a66373ad7 These entries already exist 
llvm-svn: 27340
 2006-04-02 02:51:27 +00:00
Chris Lattner
5eefd8e0b3 Add some missing node names 
llvm-svn: 27339
 2006-04-02 02:41:18 +00:00
Chris Lattner
82a0e17dd7 Significantly improve handling of vectors that are live across basic blocks, 
handling cases where the vector elements need promotion, expansion, and when
the vector type itself needs to be decimated.

llvm-svn: 27278
 2006-03-31 02:06:56 +00:00
Chris Lattner
5b8467460a new node 
llvm-svn: 27231
 2006-03-28 19:54:42 +00:00
Chris Lattner
6af8c19e4f Add an assertion 
llvm-svn: 27228
 2006-03-28 19:04:49 +00:00
Chris Lattner
d5da541d42 Tblgen doesn't like multiple SDNode<> definitions that map to the sameenum value. Split them into separate enums. 
llvm-svn: 27201
 2006-03-28 00:40:33 +00:00
Chris Lattner
f5de9e0ab3 Unbreak the build on non-apple compilers :-( 
llvm-svn: 27173
 2006-03-27 16:10:59 +00:00
Evan Cheng
11d2b6217d Try again 
llvm-svn: 27171
 2006-03-27 08:10:26 +00:00
Evan Cheng
73d281ae4c Incorrect check for FP all one's 
llvm-svn: 27169
 2006-03-27 07:26:17 +00:00
Evan Cheng
4667bd17cb Change isBuildVectorAllOnesInteger to isBuildVectorAllOnes. Also check for 
floating point cases.

llvm-svn: 27165
 2006-03-27 06:58:47 +00:00
Chris Lattner
c508c91acb Instead of printing "INTRINSIC" on intrinsic node, print the intrinsic name. 
llvm-svn: 27164
 2006-03-27 06:45:25 +00:00
Evan Cheng
ef3b33b847 Add ISD::isBuildVectorAllZeros predicate 
llvm-svn: 27147
 2006-03-26 09:50:58 +00:00
Chris Lattner
f9c8e9646d Fix a bug in ISD::isBuildVectorAllOnesInteger that caused it to always return 
false

llvm-svn: 27131
 2006-03-25 22:59:28 +00:00
Chris Lattner
d89668e503 Implement the ISD::isBuildVectorAllOnesInteger predicate 
llvm-svn: 27130
 2006-03-25 22:57:01 +00:00
Chris Lattner
3c7f31ad32 fix some bogus assertions: noop bitconverts are legal 
llvm-svn: 27032
 2006-03-24 02:20:47 +00:00
Chris Lattner
c5c9034e7f Identify the INTRINSIC node 
llvm-svn: 27020
 2006-03-24 01:04:30 +00:00
Chris Lattner
7eaf8fa583 Implement simple support for vector casting. This can currently only handle 
casts between legal vector types.

llvm-svn: 26961
 2006-03-22 20:09:35 +00:00
Chris Lattner
b90d9241c1 add some trivial support for extractelement. 
llvm-svn: 26928
 2006-03-21 20:44:12 +00:00