344 Commits

Author SHA1 Message Date
Evan Cheng
e71fe34d75 Reflects ISD::LOAD / ISD::LOADX / LoadSDNode changes.
llvm-svn: 30844
2006-10-09 20:57:25 +00:00
Evan Cheng
af309d29b1 Add getStore() helper function to create ISD::STORE nodes.
llvm-svn: 30758
2006-10-05 22:57:11 +00:00
Evan Cheng
5d9fd977d3 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
c19ef92403 Comments on JumpTableness
llvm-svn: 30615
2006-09-26 20:02:30 +00:00
Chris Lattner
5a42ebcff3 Fold extract_element(cst) to cst
llvm-svn: 30478
2006-09-19 05:02:39 +00:00
Chris Lattner
4c059f4962 Minor speedup for legalize by avoiding some malloc traffic
llvm-svn: 30477
2006-09-19 04:51:23 +00:00
Evan Cheng
45fe3bc72c 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
f0359b343a Implement the fpowi now by lowering to a libcall
llvm-svn: 30225
2006-09-09 06:03:30 +00:00
Evan Cheng
e5570a4c3f 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
849f4bf8dd 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
34b70eea5c SelectNodeTo now returns a SDNode*.
llvm-svn: 29901
2006-08-26 08:00:10 +00:00
Chris Lattner
65879caf07 minor changes.
llvm-svn: 29740
2006-08-16 22:57:46 +00:00
Chris Lattner
a4f3625c23 Use the appropriate typedef
llvm-svn: 29730
2006-08-16 20:59:32 +00:00
Chris Lattner
a5a3eafbd0 Start using SDVTList more consistently
llvm-svn: 29711
2006-08-15 19:11:05 +00:00
Chris Lattner
f98411a220 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
3bf4be453f 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
e93a39f2d7 remove SelectionDAG::InsertISelMapEntry, it is dead
llvm-svn: 29677
2006-08-14 22:24:39 +00:00
Chris Lattner
63268f0672 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
8e37283d8b 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
0c2e5412bb Remove 8 more std::map's.
llvm-svn: 29631
2006-08-11 21:55:30 +00:00
Chris Lattner
3f16b201e2 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
fcb16470ec eliminate the NullaryOps map, use CSEMap instead.
llvm-svn: 29621
2006-08-11 18:38:11 +00:00
Chris Lattner
a2f4086828 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
c24a1d3093 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
97af9d5d3a 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
1ee75ce65d 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
445b91a041 Clear TopOrder before assigning topological order. Some clean ups.
llvm-svn: 29546
2006-08-07 22:13:29 +00:00
Chris Lattner
8927c875bb 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
bba1ebda32 - 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
9631a60020 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
b572401bea Remove InFlightSet hack. No longer needed.
llvm-svn: 29373
2006-07-28 00:47:19 +00:00
Evan Cheng
acb606ff33 AssignNodeIds should return unsigned.
llvm-svn: 29343
2006-07-27 07:36:47 +00:00
Evan Cheng
29eefc164c AssignNodeIds assign each node in the DAG an unique id.
llvm-svn: 29337
2006-07-27 06:39:06 +00:00
Chris Lattner
c0973edc69 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
d19938834b 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
710b3d5ea1 Fix CodeGen/Generic/2006-06-28-SimplifySetCCCrash.ll
llvm-svn: 28965
2006-06-28 18:29:47 +00:00
Chris Lattner
aaa23d953f 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
da076e41ab remove dead vars
llvm-svn: 28254
2006-05-12 18:04:28 +00:00
Chris Lattner
8c02c3f41a 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
78da6792e7 Fold shifts with undef operands.
llvm-svn: 28167
2006-05-08 17:29:49 +00:00
Chris Lattner
751817c54f constant fold sign_extend_inreg
llvm-svn: 28151
2006-05-06 23:05:41 +00:00
Chris Lattner
393d96a56c Fix Regression/CodeGen/Generic/2006-04-26-SetCCAnd.ll and
PR748.

llvm-svn: 27987
2006-04-27 05:01:07 +00:00
Nate Begeman
4ca2ea5b43 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
bc1b262725 Implement folding of a bunch of binops with undef
llvm-svn: 27863
2006-04-20 05:39:12 +00:00
Chris Lattner
7e7ad593cc 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
d3b504ae10 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
417b96b6dd 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
02274a5265 Add code generator support for VSELECT
llvm-svn: 27542
2006-04-08 22:22:57 +00:00
Chris Lattner
a9e77d14c7 Constant fold bitconvert(undef)
llvm-svn: 27391
2006-04-04 01:02:22 +00:00
Chris Lattner
1c22728787 These entries already exist
llvm-svn: 27340
2006-04-02 02:51:27 +00:00