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343 Commits

Author SHA1 Message Date
Evan Cheng
c9e079d0c1 Add getStore() helper function to create ISD::STORE nodes. 
llvm-svn: 30758
 2006-10-05 22:57:11 +00:00
Evan Cheng
494e8e6971 Combine ISD::EXTLOAD, ISD::SEXTLOAD, ISD::ZEXTLOAD into ISD::LOADX. Add an 
extra operand to LOADX to specify the exact value extension type.

llvm-svn: 30714
 2006-10-04 00:56:09 +00:00
Andrew Lenharth
96c41b6c3c Comments on JumpTableness 
llvm-svn: 30615
 2006-09-26 20:02:30 +00:00
Chris Lattner
61d08597df Fold extract_element(cst) to cst 
llvm-svn: 30478
 2006-09-19 05:02:39 +00:00
Chris Lattner
556f869e88 Minor speedup for legalize by avoiding some malloc traffic 
llvm-svn: 30477
 2006-09-19 04:51:23 +00:00
Evan Cheng
499d77553a Added support for machine specific constantpool values. These are useful for 
representing expressions that can only be resolved at link time, etc.

llvm-svn: 30278
 2006-09-12 21:00:35 +00:00
Chris Lattner
b935214653 Implement the fpowi now by lowering to a libcall 
llvm-svn: 30225
 2006-09-09 06:03:30 +00:00
Evan Cheng
2335c819cd Move isCommutativeBinOp from SelectionDAG.cpp and DAGCombiner.cpp out. Make it a static method of SelectionDAG. 
llvm-svn: 29951
 2006-08-29 06:42:35 +00:00
Evan Cheng
6e08e7035f Eliminate SelectNodeTo() and getTargetNode() variants which take more than 
3 SDOperand operands. They are replaced by versions which take an array
of SDOperand and the number of operands.

llvm-svn: 29905
 2006-08-27 08:08:54 +00:00
Evan Cheng
1c3d571e4b SelectNodeTo now returns a SDNode*. 
llvm-svn: 29901
 2006-08-26 08:00:10 +00:00
Chris Lattner
62b0dcb385 minor changes. 
llvm-svn: 29740
 2006-08-16 22:57:46 +00:00
Chris Lattner
841e7fbac4 Use the appropriate typedef 
llvm-svn: 29730
 2006-08-16 20:59:32 +00:00
Chris Lattner
cb3adb8225 Start using SDVTList more consistently 
llvm-svn: 29711
 2006-08-15 19:11:05 +00:00
Chris Lattner
ff1826e850 add a new SDVTList type and new SelectionDAG::getVTList methods to streamline 
the creation of canonical VTLists.

llvm-svn: 29709
 2006-08-15 17:46:01 +00:00
Chris Lattner
8e8d9a3358 Add a new getNode() method that takes a pointer to an already-intern'd list 
of value-type nodes.  This avoids having to do mallocs for std::vectors of
valuetypes when a node returns more than one type.

llvm-svn: 29685
 2006-08-14 23:31:51 +00:00
Chris Lattner
9ff7eb17e0 remove SelectionDAG::InsertISelMapEntry, it is dead 
llvm-svn: 29677
 2006-08-14 22:24:39 +00:00
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